diff --git a/.gitmodules b/.gitmodules index cc17b18..1460892 100644 --- a/.gitmodules +++ b/.gitmodules @@ -1,3 +1,6 @@ [submodule "source/quickNES/QuickNES_Core"] path = source/quickNES/core url = https://github.com/SergioMartin86/QuickNES_Core.git +[submodule "source/jaffarCommon"] + path = extern/jaffarCommon + url = https://github.com/SergioMartin86/jaffarCommon.git diff --git a/extern/argparse/argparse.hpp b/extern/argparse/argparse.hpp deleted file mode 100644 index 04f04b9..0000000 --- a/extern/argparse/argparse.hpp +++ /dev/null @@ -1,1089 +0,0 @@ -/* - __ _ _ __ __ _ _ __ __ _ _ __ ___ ___ - / _` | '__/ _` | '_ \ / _` | '__/ __|/ _ \ Argument Parser for Modern C++ -| (_| | | | (_| | |_) | (_| | | \__ \ __/ http://github.com/p-ranav/argparse - \__,_|_| \__, | .__/ \__,_|_| |___/\___| - |___/|_| - -Licensed under the MIT License . -SPDX-License-Identifier: MIT -Copyright (c) 2019 Pranav Srinivas Kumar . - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -*/ -#pragma once -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -namespace argparse { - -namespace details { // namespace for helper methods - -template -struct is_container : std::false_type {}; - -template <> struct is_container : std::false_type {}; - -template -struct is_container().begin()), - decltype(std::declval().end()), - decltype(std::declval().size())>> - : std::true_type {}; - -template -static constexpr bool is_container_v = is_container::value; - -template -struct is_streamable : std::false_type {}; - -template -struct is_streamable< - T, std::void_t() << std::declval())>> - : std::true_type {}; - -template -static constexpr bool is_streamable_v = is_streamable::value; - -template -static constexpr bool is_representable_v = - is_streamable_v || is_container_v; - -constexpr size_t repr_max_container_size = 5; - -template std::string repr(T const &val) { - if constexpr (std::is_same_v) { - return val ? "true" : "false"; - } else if constexpr (std::is_convertible_v) { - return '"' + std::string{std::string_view{val}} + '"'; - } else if constexpr (is_container_v) { - std::stringstream out; - out << "{"; - const auto size = val.size(); - if (size > 1) { - out << repr(*val.begin()); - std::for_each( - std::next(val.begin()), - std::next(val.begin(), std::min(size, repr_max_container_size) - 1), - [&out](const auto &v) { out << " " << repr(v); }); - if (size <= repr_max_container_size) - out << " "; - else - out << "..."; - } - if (size > 0) - out << repr(*std::prev(val.end())); - out << "}"; - return out.str(); - } else if constexpr (is_streamable_v) { - std::stringstream out; - out << val; - return out.str(); - } else { - return ""; - } -} - -namespace { - -template constexpr bool standard_signed_integer = false; -template <> constexpr bool standard_signed_integer = true; -template <> constexpr bool standard_signed_integer = true; -template <> constexpr bool standard_signed_integer = true; -template <> constexpr bool standard_signed_integer = true; -template <> constexpr bool standard_signed_integer = true; - -template constexpr bool standard_unsigned_integer = false; -template <> constexpr bool standard_unsigned_integer = true; -template <> constexpr bool standard_unsigned_integer = true; -template <> constexpr bool standard_unsigned_integer = true; -template <> constexpr bool standard_unsigned_integer = true; -template <> -constexpr bool standard_unsigned_integer = true; - -} // namespace - -template -constexpr bool standard_integer = - standard_signed_integer || standard_unsigned_integer; - -template -constexpr decltype(auto) apply_plus_one_impl(F &&f, Tuple &&t, Extra &&x, - std::index_sequence) { - return std::invoke(std::forward(f), std::get(std::forward(t))..., - std::forward(x)); -} - -template -constexpr decltype(auto) apply_plus_one(F &&f, Tuple &&t, Extra &&x) { - return details::apply_plus_one_impl( - std::forward(f), std::forward(t), std::forward(x), - std::make_index_sequence< - std::tuple_size_v>>{}); -} - -constexpr auto pointer_range(std::string_view s) noexcept { - return std::tuple(s.data(), s.data() + s.size()); -} - -template -constexpr bool starts_with(std::basic_string_view prefix, - std::basic_string_view s) noexcept { - return s.substr(0, prefix.size()) == prefix; -} - -enum class chars_format { - scientific = 0x1, - fixed = 0x2, - hex = 0x4, - general = fixed | scientific -}; - -struct consume_hex_prefix_result { - bool is_hexadecimal; - std::string_view rest; -}; - -using namespace std::literals; - -constexpr auto consume_hex_prefix(std::string_view s) - -> consume_hex_prefix_result { - if (starts_with("0x"sv, s) || starts_with("0X"sv, s)) { - s.remove_prefix(2); - return {true, s}; - } else { - return {false, s}; - } -} - -template -inline auto do_from_chars(std::string_view s) -> T { - T x; - auto [first, last] = pointer_range(s); - auto [ptr, ec] = std::from_chars(first, last, x, Param); - if (ec == std::errc()) { - if (ptr == last) - return x; - else - throw std::invalid_argument{"pattern does not match to the end"}; - } else if (ec == std::errc::invalid_argument) { - throw std::invalid_argument{"pattern not found"}; - } else if (ec == std::errc::result_out_of_range) { - throw std::range_error{"not representable"}; - } else { - return x; // unreachable - } -} - -template struct parse_number { - auto operator()(std::string_view s) -> T { - return do_from_chars(s); - } -}; - -template struct parse_number { - auto operator()(std::string_view s) -> T { - if (auto [ok, rest] = consume_hex_prefix(s); ok) - return do_from_chars(rest); - else - throw std::invalid_argument{"pattern not found"}; - } -}; - -template struct parse_number { - auto operator()(std::string_view s) -> T { - if (auto [ok, rest] = consume_hex_prefix(s); ok) - return do_from_chars(rest); - else if (starts_with("0"sv, s)) - return do_from_chars(rest); - else - return do_from_chars(rest); - } -}; - -namespace { - -template constexpr auto generic_strtod = nullptr; -template <> constexpr auto generic_strtod = strtof; -template <> constexpr auto generic_strtod = strtod; -template <> constexpr auto generic_strtod = strtold; - -} // namespace - -template inline auto do_strtod(std::string const &s) -> T { - if (isspace(static_cast(s[0])) || s[0] == '+') - throw std::invalid_argument{"pattern not found"}; - - auto [first, last] = pointer_range(s); - char *ptr; - - errno = 0; - if (auto x = generic_strtod(first, &ptr); errno == 0) { - if (ptr == last) - return x; - else - throw std::invalid_argument{"pattern does not match to the end"}; - } else if (errno == ERANGE) { - throw std::range_error{"not representable"}; - } else { - return x; // unreachable - } -} - -template struct parse_number { - auto operator()(std::string const &s) -> T { - if (auto r = consume_hex_prefix(s); r.is_hexadecimal) - throw std::invalid_argument{ - "chars_format::general does not parse hexfloat"}; - - return do_strtod(s); - } -}; - -template struct parse_number { - auto operator()(std::string const &s) -> T { - if (auto r = consume_hex_prefix(s); !r.is_hexadecimal) - throw std::invalid_argument{"chars_format::hex parses hexfloat"}; - - return do_strtod(s); - } -}; - -template struct parse_number { - auto operator()(std::string const &s) -> T { - if (auto r = consume_hex_prefix(s); r.is_hexadecimal) - throw std::invalid_argument{ - "chars_format::scientific does not parse hexfloat"}; - if (s.find_first_of("eE") == s.npos) - throw std::invalid_argument{ - "chars_format::scientific requires exponent part"}; - - return do_strtod(s); - } -}; - -template struct parse_number { - auto operator()(std::string const &s) -> T { - if (auto r = consume_hex_prefix(s); r.is_hexadecimal) - throw std::invalid_argument{ - "chars_format::fixed does not parse hexfloat"}; - if (s.find_first_of("eE") != s.npos) - throw std::invalid_argument{ - "chars_format::fixed does not parse exponent part"}; - - return do_strtod(s); - } -}; - -} // namespace details - -class ArgumentParser; - -class Argument { - friend class ArgumentParser; - friend auto operator<<(std::ostream &, ArgumentParser const &) - -> std::ostream &; - - template - explicit Argument(std::string_view(&&a)[N], std::index_sequence) - : mIsOptional((is_optional(a[I]) || ...)), mIsRequired(false), - mIsUsed(false) { - ((void)mNames.emplace_back(a[I]), ...); - std::sort( - mNames.begin(), mNames.end(), [](const auto &lhs, const auto &rhs) { - return lhs.size() == rhs.size() ? lhs < rhs : lhs.size() < rhs.size(); - }); - } - -public: - template - explicit Argument(std::string_view(&&a)[N]) - : Argument(std::move(a), std::make_index_sequence{}) {} - - Argument &help(std::string aHelp) { - mHelp = std::move(aHelp); - return *this; - } - - template Argument &default_value(T &&aDefaultValue) { - mDefaultValueRepr = details::repr(aDefaultValue); - mDefaultValue = std::forward(aDefaultValue); - return *this; - } - - Argument &required() { - mIsRequired = true; - return *this; - } - - Argument &implicit_value(std::any aImplicitValue) { - mImplicitValue = std::move(aImplicitValue); - mNumArgs = 0; - return *this; - } - - template - auto action(F &&aAction, Args &&... aBound) - -> std::enable_if_t, - Argument &> { - using action_type = std::conditional_t< - std::is_void_v>, - void_action, valued_action>; - if constexpr (sizeof...(Args) == 0) - mAction.emplace(std::forward(aAction)); - else - mAction.emplace( - [f = std::forward(aAction), - tup = std::make_tuple(std::forward(aBound)...)]( - std::string const &opt) mutable { - return details::apply_plus_one(f, tup, opt); - }); - return *this; - } - - template - auto scan() -> std::enable_if_t, Argument &> { - static_assert(!(std::is_const_v || std::is_volatile_v), - "T should not be cv-qualified"); - auto is_one_of = [](char c, auto... x) constexpr { - return ((c == x) || ...); - }; - - if constexpr (is_one_of(Shape, 'd') && details::standard_integer) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'i') && details::standard_integer) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'u') && - details::standard_unsigned_integer) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'o') && - details::standard_unsigned_integer) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'x', 'X') && - details::standard_unsigned_integer) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'a', 'A') && - std::is_floating_point_v) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'e', 'E') && - std::is_floating_point_v) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'f', 'F') && - std::is_floating_point_v) - action(details::parse_number()); - else if constexpr (is_one_of(Shape, 'g', 'G') && - std::is_floating_point_v) - action(details::parse_number()); - else - static_assert(alignof(T) == 0, "No scan specification for T"); - - return *this; - } - - Argument &nargs(int aNumArgs) { - if (aNumArgs < 0) - throw std::logic_error("Number of arguments must be non-negative"); - mNumArgs = aNumArgs; - return *this; - } - - Argument &remaining() { - mNumArgs = -1; - return *this; - } - - template - Iterator consume(Iterator start, Iterator end, - std::string_view usedName = {}) { - if (mIsUsed) { - throw std::runtime_error("Duplicate argument"); - } - mIsUsed = true; - mUsedName = usedName; - if (mNumArgs == 0) { - mValues.emplace_back(mImplicitValue); - return start; - } else if (mNumArgs <= std::distance(start, end)) { - if (auto expected = maybe_nargs()) { - end = std::next(start, *expected); - if (std::any_of(start, end, Argument::is_optional)) { - throw std::runtime_error("optional argument in parameter sequence"); - } - } - - struct action_apply { - void operator()(valued_action &f) { - std::transform(start, end, std::back_inserter(self.mValues), f); - } - - void operator()(void_action &f) { - std::for_each(start, end, f); - if (!self.mDefaultValue.has_value()) { - if (auto expected = self.maybe_nargs()) - self.mValues.resize(*expected); - } - } - - Iterator start, end; - Argument &self; - }; - std::visit(action_apply{start, end, *this}, mAction); - return end; - } else if (mDefaultValue.has_value()) { - return start; - } else { - throw std::runtime_error("Too few arguments"); - } - } - - /* - * @throws std::runtime_error if argument values are not valid - */ - void validate() const { - if (auto expected = maybe_nargs()) { - if (mIsOptional) { - if (mIsUsed && mValues.size() != *expected && - !mDefaultValue.has_value()) { - std::stringstream stream; - stream << mUsedName << ": expected " << *expected << " argument(s). " - << mValues.size() << " provided."; - throw std::runtime_error(stream.str()); - } else { - // TODO: check if an implicit value was programmed for this argument - if (!mIsUsed && !mDefaultValue.has_value() && mIsRequired) { - std::stringstream stream; - stream << mNames[0] << ": required."; - throw std::runtime_error(stream.str()); - } - if (mIsUsed && mIsRequired && mValues.size() == 0) { - std::stringstream stream; - stream << mUsedName << ": no value provided."; - throw std::runtime_error(stream.str()); - } - } - } else { - if (mValues.size() != expected && !mDefaultValue.has_value()) { - std::stringstream stream; - if (!mUsedName.empty()) - stream << mUsedName << ": "; - stream << *expected << " argument(s) expected. " << mValues.size() - << " provided."; - throw std::runtime_error(stream.str()); - } - } - } - } - - auto maybe_nargs() const -> std::optional { - if (mNumArgs < 0) - return std::nullopt; - else - return static_cast(mNumArgs); - } - - size_t get_arguments_length() const { - return std::accumulate(std::begin(mNames), std::end(mNames), size_t(0), - [](const auto &sum, const auto &s) { - return sum + s.size() + - 1; // +1 for space between names - }); - } - - friend std::ostream &operator<<(std::ostream &stream, - const Argument &argument) { - std::stringstream nameStream; - std::copy(std::begin(argument.mNames), std::end(argument.mNames), - std::ostream_iterator(nameStream, " ")); - stream << nameStream.str() << "\t" << argument.mHelp; - if (argument.mDefaultValue.has_value()) { - if (!argument.mHelp.empty()) - stream << " "; - stream << "[default: " << argument.mDefaultValueRepr << "]"; - } else if (argument.mIsRequired) { - if (!argument.mHelp.empty()) - stream << " "; - stream << "[required]"; - } - stream << "\n"; - return stream; - } - - template bool operator!=(const T &aRhs) const { - return !(*this == aRhs); - } - - /* - * Compare to an argument value of known type - * @throws std::logic_error in case of incompatible types - */ - template bool operator==(const T &aRhs) const { - if constexpr (!details::is_container_v) { - return get() == aRhs; - } else { - using ValueType = typename T::value_type; - auto tLhs = get(); - return std::equal(std::begin(tLhs), std::end(tLhs), std::begin(aRhs), - std::end(aRhs), [](const auto &lhs, const auto &rhs) { - return std::any_cast(lhs) == rhs; - }); - } - } - -private: - static constexpr int eof = std::char_traits::eof(); - - static auto lookahead(std::string_view s) -> int { - if (s.empty()) - return eof; - else - return static_cast(static_cast(s[0])); - } - - /* - * decimal-literal: - * '0' - * nonzero-digit digit-sequence_opt - * integer-part fractional-part - * fractional-part - * integer-part '.' exponent-part_opt - * integer-part exponent-part - * - * integer-part: - * digit-sequence - * - * fractional-part: - * '.' post-decimal-point - * - * post-decimal-point: - * digit-sequence exponent-part_opt - * - * exponent-part: - * 'e' post-e - * 'E' post-e - * - * post-e: - * sign_opt digit-sequence - * - * sign: one of - * '+' '-' - */ - static bool is_decimal_literal(std::string_view s) { - auto is_digit = [](auto c) constexpr { - switch (c) { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - return true; - default: - return false; - } - }; - - // precondition: we have consumed or will consume at least one digit - auto consume_digits = [=](std::string_view s) { - auto it = std::find_if_not(std::begin(s), std::end(s), is_digit); - return s.substr(it - std::begin(s)); - }; - - switch (lookahead(s)) { - case '0': { - s.remove_prefix(1); - if (s.empty()) - return true; - else - goto integer_part; - } - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': { - s = consume_digits(s); - if (s.empty()) - return true; - else - goto integer_part_consumed; - } - case '.': { - s.remove_prefix(1); - goto post_decimal_point; - } - default: - return false; - } - - integer_part: - s = consume_digits(s); - integer_part_consumed: - switch (lookahead(s)) { - case '.': { - s.remove_prefix(1); - if (is_digit(lookahead(s))) - goto post_decimal_point; - else - goto exponent_part_opt; - } - case 'e': - case 'E': { - s.remove_prefix(1); - goto post_e; - } - default: - return false; - } - - post_decimal_point: - if (is_digit(lookahead(s))) { - s = consume_digits(s); - goto exponent_part_opt; - } else { - return false; - } - - exponent_part_opt: - switch (lookahead(s)) { - case eof: - return true; - case 'e': - case 'E': { - s.remove_prefix(1); - goto post_e; - } - default: - return false; - } - - post_e: - switch (lookahead(s)) { - case '-': - case '+': - s.remove_prefix(1); - } - if (is_digit(lookahead(s))) { - s = consume_digits(s); - return s.empty(); - } else { - return false; - } - } - - static bool is_optional(std::string_view aName) { - return !is_positional(aName); - } - - /* - * positional: - * _empty_ - * '-' - * '-' decimal-literal - * !'-' anything - */ - static bool is_positional(std::string_view aName) { - switch (lookahead(aName)) { - case eof: - return true; - case '-': { - aName.remove_prefix(1); - if (aName.empty()) - return true; - else - return is_decimal_literal(aName); - } - default: - return true; - } - } - - /* - * Get argument value given a type - * @throws std::logic_error in case of incompatible types - */ - template T get() const { - if (!mValues.empty()) { - if constexpr (details::is_container_v) - return any_cast_container(mValues); - else - return std::any_cast(mValues.front()); - } - if (mDefaultValue.has_value()) { - return std::any_cast(mDefaultValue); - } - throw std::logic_error("No value provided"); - } - - /* - * Get argument value given a type. - * @pre The object has no default value. - * @returns The stored value if any, std::nullopt otherwise. - */ - template auto present() const -> std::optional { - if (mDefaultValue.has_value()) - throw std::logic_error("Argument with default value always presents"); - - if (mValues.empty()) - return std::nullopt; - else if constexpr (details::is_container_v) - return any_cast_container(mValues); - else - return std::any_cast(mValues.front()); - } - - template - static auto any_cast_container(const std::vector &aOperand) -> T { - using ValueType = typename T::value_type; - - T tResult; - std::transform( - std::begin(aOperand), std::end(aOperand), std::back_inserter(tResult), - [](const auto &value) { return std::any_cast(value); }); - return tResult; - } - - std::vector mNames; - std::string_view mUsedName; - std::string mHelp; - std::any mDefaultValue; - std::string mDefaultValueRepr; - std::any mImplicitValue; - using valued_action = std::function; - using void_action = std::function; - std::variant mAction{ - std::in_place_type, - [](const std::string &aValue) { return aValue; }}; - std::vector mValues; - int mNumArgs = 1; - bool mIsOptional : 1; - bool mIsRequired : 1; - bool mIsUsed : 1; // True if the optional argument is used by user -}; - -class ArgumentParser { -public: - explicit ArgumentParser(std::string aProgramName = {}, - std::string aVersion = "1.0") - : mProgramName(std::move(aProgramName)), mVersion(std::move(aVersion)) { - add_argument("-h", "--help").help("shows help message and exits").nargs(0); - add_argument("-v", "--version") - .help("prints version information and exits") - .nargs(0); - } - - ArgumentParser(ArgumentParser &&) noexcept = default; - ArgumentParser &operator=(ArgumentParser &&) = default; - - ArgumentParser(const ArgumentParser &other) - : mProgramName(other.mProgramName), - mPositionalArguments(other.mPositionalArguments), - mOptionalArguments(other.mOptionalArguments) { - for (auto it = std::begin(mPositionalArguments); it != std::end(mPositionalArguments); - ++it) - index_argument(it); - for (auto it = std::begin(mOptionalArguments); it != std::end(mOptionalArguments); - ++it) - index_argument(it); - } - - ArgumentParser &operator=(const ArgumentParser &other) { - auto tmp = other; - std::swap(*this, tmp); - return *this; - } - - // Parameter packing - // Call add_argument with variadic number of string arguments - template Argument &add_argument(Targs... Fargs) { - using array_of_sv = std::string_view[sizeof...(Targs)]; - auto tArgument = mOptionalArguments.emplace(cend(mOptionalArguments), - array_of_sv{Fargs...}); - - if (!tArgument->mIsOptional) - mPositionalArguments.splice(cend(mPositionalArguments), - mOptionalArguments, tArgument); - - index_argument(tArgument); - return *tArgument; - } - - // Parameter packed add_parents method - // Accepts a variadic number of ArgumentParser objects - template - ArgumentParser &add_parents(const Targs &... Fargs) { - for (const ArgumentParser &tParentParser : {std::ref(Fargs)...}) { - for (auto &tArgument : tParentParser.mPositionalArguments) { - auto it = - mPositionalArguments.insert(cend(mPositionalArguments), tArgument); - index_argument(it); - } - for (auto &tArgument : tParentParser.mOptionalArguments) { - auto it = - mOptionalArguments.insert(cend(mOptionalArguments), tArgument); - index_argument(it); - } - } - return *this; - } - - ArgumentParser &add_description(std::string aDescription) { - mDescription = std::move(aDescription); - return *this; - } - - ArgumentParser &add_epilog(std::string aEpilog) { - mEpilog = std::move(aEpilog); - return *this; - } - - /* Call parse_args_internal - which does all the work - * Then, validate the parsed arguments - * This variant is used mainly for testing - * @throws std::runtime_error in case of any invalid argument - */ - void parse_args(const std::vector &aArguments) { - parse_args_internal(aArguments); - parse_args_validate(); - } - - /* Main entry point for parsing command-line arguments using this - * ArgumentParser - * @throws std::runtime_error in case of any invalid argument - */ - void parse_args(int argc, const char *const argv[]) { - std::vector arguments; - std::copy(argv, argv + argc, std::back_inserter(arguments)); - parse_args(arguments); - } - - /* Getter for options with default values. - * @throws std::logic_error if there is no such option - * @throws std::logic_error if the option has no value - * @throws std::bad_any_cast if the option is not of type T - */ - template - T get(std::string_view aArgumentName) const { - return (*this)[aArgumentName].get(); - } - - /* Getter for options without default values. - * @pre The option has no default value. - * @throws std::logic_error if there is no such option - * @throws std::bad_any_cast if the option is not of type T - */ - template - auto present(std::string_view aArgumentName) -> std::optional { - return (*this)[aArgumentName].present(); - } - - /* Indexing operator. Return a reference to an Argument object - * Used in conjuction with Argument.operator== e.g., parser["foo"] == true - * @throws std::logic_error in case of an invalid argument name - */ - Argument &operator[](std::string_view aArgumentName) const { - auto tIterator = mArgumentMap.find(aArgumentName); - if (tIterator != mArgumentMap.end()) { - return *(tIterator->second); - } - throw std::logic_error("No such argument"); - } - - // Print help message - friend auto operator<<(std::ostream &stream, const ArgumentParser &parser) - -> std::ostream & { - if (auto sen = std::ostream::sentry(stream)) { - stream.setf(std::ios_base::left); - stream << "Usage: " << parser.mProgramName << " [options] "; - size_t tLongestArgumentLength = parser.get_length_of_longest_argument(); - - for (const auto &argument : parser.mPositionalArguments) { - stream << argument.mNames.front() << " "; - } - stream << "\n\n"; - - if (!parser.mDescription.empty()) - stream << parser.mDescription << "\n\n"; - - if (!parser.mPositionalArguments.empty()) - stream << "Positional arguments:\n"; - - for (const auto &mPositionalArgument : parser.mPositionalArguments) { - stream.width(tLongestArgumentLength); - stream << mPositionalArgument; - } - - if (!parser.mOptionalArguments.empty()) - stream << (parser.mPositionalArguments.empty() ? "" : "\n") - << "Optional arguments:\n"; - - for (const auto &mOptionalArgument : parser.mOptionalArguments) { - stream.width(tLongestArgumentLength); - stream << mOptionalArgument; - } - - if (!parser.mEpilog.empty()) - stream << parser.mEpilog << "\n\n"; - } - - return stream; - } - - // Format help message - auto help() const -> std::stringstream { - std::stringstream out; - out << *this; - return out; - } - - // Printing the one and only help message - // I've stuck with a simple message format, nothing fancy. - [[deprecated("Use cout << program; instead. See also help().")]] std::string - print_help() { - auto out = help(); - std::cout << out.rdbuf(); - return out.str(); - } - -private: - /* - * @throws std::runtime_error in case of any invalid argument - */ - void parse_args_internal(const std::vector &aArguments) { - if (mProgramName.empty() && !aArguments.empty()) { - mProgramName = aArguments.front(); - } - auto end = std::end(aArguments); - auto positionalArgumentIt = std::begin(mPositionalArguments); - for (auto it = std::next(std::begin(aArguments)); it != end;) { - const auto &tCurrentArgument = *it; - if (Argument::is_positional(tCurrentArgument)) { - if (positionalArgumentIt == std::end(mPositionalArguments)) { - throw std::runtime_error( - "Maximum number of positional arguments exceeded"); - } - auto tArgument = positionalArgumentIt++; - it = tArgument->consume(it, end); - continue; - } - - auto tIterator = mArgumentMap.find(tCurrentArgument); - if (tIterator != mArgumentMap.end()) { - auto tArgument = tIterator->second; - - // the first optional argument is --help - if (tArgument == mOptionalArguments.begin()) { - std::cout << *this; - std::exit(0); - } - // the second optional argument is --version - else if (tArgument == std::next(mOptionalArguments.begin(), 1)) { - std::cout << mVersion << "\n"; - std::exit(0); - } - - it = tArgument->consume(std::next(it), end, tIterator->first); - } else if (const auto &tCompoundArgument = tCurrentArgument; - tCompoundArgument.size() > 1 && tCompoundArgument[0] == '-' && - tCompoundArgument[1] != '-') { - ++it; - for (size_t j = 1; j < tCompoundArgument.size(); j++) { - auto tHypotheticalArgument = std::string{'-', tCompoundArgument[j]}; - auto tIterator2 = mArgumentMap.find(tHypotheticalArgument); - if (tIterator2 != mArgumentMap.end()) { - auto tArgument = tIterator2->second; - it = tArgument->consume(it, end, tIterator2->first); - } else { - throw std::runtime_error("Unknown argument"); - } - } - } else { - throw std::runtime_error("Unknown argument"); - } - } - } - - /* - * @throws std::runtime_error in case of any invalid argument - */ - void parse_args_validate() { - // Check if all arguments are parsed - std::for_each(std::begin(mArgumentMap), std::end(mArgumentMap), - [](const auto &argPair) { - const auto &tArgument = argPair.second; - tArgument->validate(); - }); - } - - // Used by print_help. - size_t get_length_of_longest_argument() const { - if (mArgumentMap.empty()) - return 0; - std::vector argumentLengths(mArgumentMap.size()); - std::transform(std::begin(mArgumentMap), std::end(mArgumentMap), - std::begin(argumentLengths), [](const auto &argPair) { - const auto &tArgument = argPair.second; - return tArgument->get_arguments_length(); - }); - return *std::max_element(std::begin(argumentLengths), - std::end(argumentLengths)); - } - - using list_iterator = std::list::iterator; - - void index_argument(list_iterator argIt) { - for (auto &mName : argIt->mNames) - mArgumentMap.insert_or_assign(mName, argIt); - } - - std::string mProgramName; - std::string mVersion; - std::string mDescription; - std::string mEpilog; - std::list mPositionalArguments; - std::list mOptionalArguments; - std::map> mArgumentMap; -}; - -} // namespace argparse diff --git a/extern/jaffarCommon b/extern/jaffarCommon new file mode 160000 index 0000000..f15d231 --- /dev/null +++ b/extern/jaffarCommon @@ -0,0 +1 @@ +Subproject commit f15d231ead67f064ff6dc3b1aad07b20da088dab diff --git a/extern/json/LICENSE.MIT b/extern/json/LICENSE.MIT deleted file mode 100644 index f0622d6..0000000 --- a/extern/json/LICENSE.MIT +++ /dev/null @@ -1,21 +0,0 @@ -MIT License - -Copyright (c) 2013-2021 Niels Lohmann - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/extern/json/README.md b/extern/json/README.md deleted file mode 100644 index f9c65e8..0000000 --- a/extern/json/README.md +++ /dev/null @@ -1,1701 +0,0 @@ -[![JSON for Modern C++](https://raw.githubusercontent.com/nlohmann/json/master/doc/json.gif)](https://github.com/nlohmann/json/releases) - -[![Build Status](https://travis-ci.org/nlohmann/json.svg?branch=master)](https://travis-ci.org/nlohmann/json) -[![Build Status](https://ci.appveyor.com/api/projects/status/1acb366xfyg3qybk/branch/develop?svg=true)](https://ci.appveyor.com/project/nlohmann/json) -[![Ubuntu](https://github.com/nlohmann/json/workflows/Ubuntu/badge.svg)](https://github.com/nlohmann/json/actions?query=workflow%3AUbuntu) -[![macOS](https://github.com/nlohmann/json/workflows/macOS/badge.svg)](https://github.com/nlohmann/json/actions?query=workflow%3AmacOS) -[![Windows](https://github.com/nlohmann/json/workflows/Windows/badge.svg)](https://github.com/nlohmann/json/actions?query=workflow%3AWindows) -[![Coverage Status](https://coveralls.io/repos/github/nlohmann/json/badge.svg?branch=develop)](https://coveralls.io/github/nlohmann/json?branch=develop) -[![Coverity Scan Build Status](https://scan.coverity.com/projects/5550/badge.svg)](https://scan.coverity.com/projects/nlohmann-json) -[![Codacy Badge](https://app.codacy.com/project/badge/Grade/e0d1a9d5d6fd46fcb655c4cb930bb3e8)](https://www.codacy.com/gh/nlohmann/json/dashboard?utm_source=github.com&utm_medium=referral&utm_content=nlohmann/json&utm_campaign=Badge_Grade) -[![Language grade: C/C++](https://img.shields.io/lgtm/grade/cpp/g/nlohmann/json.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/nlohmann/json/context:cpp) -[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/json.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:json) -[![Try online](https://img.shields.io/badge/try-online-blue.svg)](https://wandbox.org/permlink/3lCHrFUZANONKv7a) -[![Documentation](https://img.shields.io/badge/docs-doxygen-blue.svg)](https://nlohmann.github.io/json/doxygen/index.html) -[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/nlohmann/json/master/LICENSE.MIT) -[![GitHub Releases](https://img.shields.io/github/release/nlohmann/json.svg)](https://github.com/nlohmann/json/releases) -[![GitHub Downloads](https://img.shields.io/github/downloads/nlohmann/json/total)](https://github.com/nlohmann/json/releases) -[![GitHub Issues](https://img.shields.io/github/issues/nlohmann/json.svg)](https://github.com/nlohmann/json/issues) -[![Average time to resolve an issue](https://isitmaintained.com/badge/resolution/nlohmann/json.svg)](https://isitmaintained.com/project/nlohmann/json "Average time to resolve an issue") -[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/289/badge)](https://bestpractices.coreinfrastructure.org/projects/289) -[![GitHub Sponsors](https://img.shields.io/badge/GitHub-Sponsors-ff69b4)](https://github.com/sponsors/nlohmann) - -- [Design goals](#design-goals) -- [Sponsors](#sponsors) -- [Support](#support) ([documentation](https://json.nlohmann.me), [FAQ](http://127.0.0.1:8000/home/faq/), [discussions](https://github.com/nlohmann/json/discussions), [API](https://json.nlohmann.me/api/basic_json/), [bug issues](https://github.com/nlohmann/json/issues)) -- [Examples](#examples) - - [JSON as first-class data type](#json-as-first-class-data-type) - - [Serialization / Deserialization](#serialization--deserialization) - - [STL-like access](#stl-like-access) - - [Conversion from STL containers](#conversion-from-stl-containers) - - [JSON Pointer and JSON Patch](#json-pointer-and-json-patch) - - [JSON Merge Patch](#json-merge-patch) - - [Implicit conversions](#implicit-conversions) - - [Conversions to/from arbitrary types](#arbitrary-types-conversions) - - [Specializing enum conversion](#specializing-enum-conversion) - - [Binary formats (BSON, CBOR, MessagePack, and UBJSON)](#binary-formats-bson-cbor-messagepack-and-ubjson) -- [Supported compilers](#supported-compilers) -- [Integration](#integration) - - [CMake](#cmake) - - [Package Managers](#package-managers) - - [Pkg-config](#pkg-config) -- [License](#license) -- [Contact](#contact) -- [Thanks](#thanks) -- [Used third-party tools](#used-third-party-tools) -- [Projects using JSON for Modern C++](#projects-using-json-for-modern-c) -- [Notes](#notes) -- [Execute unit tests](#execute-unit-tests) - -## Design goals - -There are myriads of [JSON](https://json.org) libraries out there, and each may even have its reason to exist. Our class had these design goals: - -- **Intuitive syntax**. In languages such as Python, JSON feels like a first class data type. We used all the operator magic of modern C++ to achieve the same feeling in your code. Check out the [examples below](#examples) and you'll know what I mean. - -- **Trivial integration**. Our whole code consists of a single header file [`json.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json.hpp). That's it. No library, no subproject, no dependencies, no complex build system. The class is written in vanilla C++11. All in all, everything should require no adjustment of your compiler flags or project settings. - -- **Serious testing**. Our class is heavily [unit-tested](https://github.com/nlohmann/json/tree/develop/test/src) and covers [100%](https://coveralls.io/r/nlohmann/json) of the code, including all exceptional behavior. Furthermore, we checked with [Valgrind](https://valgrind.org) and the [Clang Sanitizers](https://clang.llvm.org/docs/index.html) that there are no memory leaks. [Google OSS-Fuzz](https://github.com/google/oss-fuzz/tree/master/projects/json) additionally runs fuzz tests against all parsers 24/7, effectively executing billions of tests so far. To maintain high quality, the project is following the [Core Infrastructure Initiative (CII) best practices](https://bestpractices.coreinfrastructure.org/projects/289). - -Other aspects were not so important to us: - -- **Memory efficiency**. Each JSON object has an overhead of one pointer (the maximal size of a union) and one enumeration element (1 byte). The default generalization uses the following C++ data types: `std::string` for strings, `int64_t`, `uint64_t` or `double` for numbers, `std::map` for objects, `std::vector` for arrays, and `bool` for Booleans. However, you can template the generalized class `basic_json` to your needs. - -- **Speed**. There are certainly [faster JSON libraries](https://github.com/miloyip/nativejson-benchmark#parsing-time) out there. However, if your goal is to speed up your development by adding JSON support with a single header, then this library is the way to go. If you know how to use a `std::vector` or `std::map`, you are already set. - -See the [contribution guidelines](https://github.com/nlohmann/json/blob/master/.github/CONTRIBUTING.md#please-dont) for more information. - - -## Sponsors - -You can sponsor this library at [GitHub Sponsors](https://github.com/sponsors/nlohmann). - -### :label: Named Sponsors - -- [Michael Hartmann](https://github.com/reFX-Mike) -- [Stefan Hagen](https://github.com/sthagen) -- [Steve Sperandeo](https://github.com/homer6) -- [Robert Jefe Lindstädt](https://github.com/eljefedelrodeodeljefe) -- [Steve Wagner](https://github.com/ciroque) - -Thanks everyone! - -## Support - -:question: If you have a **question**, please check if it is already answered in the [**FAQ**](https://json.nlohmann.me/home/faq/) or the [**Q&A**](https://github.com/nlohmann/json/discussions/categories/q-a) section. If not, please [**ask a new question**](https://github.com/nlohmann/json/discussions/new) there. - -:books: If you want to **learn more** about how to use the library, check out the rest of the [**README**](#examples), have a look at [**code examples**](https://github.com/nlohmann/json/tree/develop/doc/examples), or browse through the [**help pages**](https://json.nlohmann.me). - -:construction: If you want to understand the **API** better, check out the [**API Reference**](https://json.nlohmann.me/api/basic_json/) or the [**Doxygen documentation**](https://json.nlohmann.me/doxygen/index.html). - -:bug: If you found a **bug**, please check the [**FAQ**](https://json.nlohmann.me/home/faq/) if it is a known issue or the result of a design decision. Please also have a look at the [**issue list**](https://github.com/nlohmann/json/issues) before you [**create a new issue**](https://github.com/nlohmann/json/issues/new/choose). Please provide as many information as possible to help us understand and reproduce your issue. - - -## Examples - -Beside the examples below, you may want to check the [documentation](https://nlohmann.github.io/json/) where each function contains a separate code example (e.g., check out [`emplace()`](https://nlohmann.github.io/json/api/basic_json/emplace/)). All [example files](https://github.com/nlohmann/json/tree/develop/doc/examples) can be compiled and executed on their own (e.g., file [emplace.cpp](https://github.com/nlohmann/json/blob/develop/doc/examples/emplace.cpp)). - -### JSON as first-class data type - -Here are some examples to give you an idea how to use the class. - -Assume you want to create the JSON object - -```json -{ - "pi": 3.141, - "happy": true, - "name": "Niels", - "nothing": null, - "answer": { - "everything": 42 - }, - "list": [1, 0, 2], - "object": { - "currency": "USD", - "value": 42.99 - } -} -``` - -With this library, you could write: - -```cpp -// create an empty structure (null) -json j; - -// add a number that is stored as double (note the implicit conversion of j to an object) -j["pi"] = 3.141; - -// add a Boolean that is stored as bool -j["happy"] = true; - -// add a string that is stored as std::string -j["name"] = "Niels"; - -// add another null object by passing nullptr -j["nothing"] = nullptr; - -// add an object inside the object -j["answer"]["everything"] = 42; - -// add an array that is stored as std::vector (using an initializer list) -j["list"] = { 1, 0, 2 }; - -// add another object (using an initializer list of pairs) -j["object"] = { {"currency", "USD"}, {"value", 42.99} }; - -// instead, you could also write (which looks very similar to the JSON above) -json j2 = { - {"pi", 3.141}, - {"happy", true}, - {"name", "Niels"}, - {"nothing", nullptr}, - {"answer", { - {"everything", 42} - }}, - {"list", {1, 0, 2}}, - {"object", { - {"currency", "USD"}, - {"value", 42.99} - }} -}; -``` - -Note that in all these cases, you never need to "tell" the compiler which JSON value type you want to use. If you want to be explicit or express some edge cases, the functions [`json::array()`](https://nlohmann.github.io/json/api/basic_json/array/) and [`json::object()`](https://nlohmann.github.io/json/api/basic_json/object/) will help: - -```cpp -// a way to express the empty array [] -json empty_array_explicit = json::array(); - -// ways to express the empty object {} -json empty_object_implicit = json({}); -json empty_object_explicit = json::object(); - -// a way to express an _array_ of key/value pairs [["currency", "USD"], ["value", 42.99]] -json array_not_object = json::array({ {"currency", "USD"}, {"value", 42.99} }); -``` - -### Serialization / Deserialization - -#### To/from strings - -You can create a JSON value (deserialization) by appending `_json` to a string literal: - -```cpp -// create object from string literal -json j = "{ \"happy\": true, \"pi\": 3.141 }"_json; - -// or even nicer with a raw string literal -auto j2 = R"( - { - "happy": true, - "pi": 3.141 - } -)"_json; -``` - -Note that without appending the `_json` suffix, the passed string literal is not parsed, but just used as JSON string value. That is, `json j = "{ \"happy\": true, \"pi\": 3.141 }"` would just store the string `"{ "happy": true, "pi": 3.141 }"` rather than parsing the actual object. - -The above example can also be expressed explicitly using [`json::parse()`](https://nlohmann.github.io/json/api/basic_json/parse/): - -```cpp -// parse explicitly -auto j3 = json::parse(R"({"happy": true, "pi": 3.141})"); -``` - -You can also get a string representation of a JSON value (serialize): - -```cpp -// explicit conversion to string -std::string s = j.dump(); // {"happy":true,"pi":3.141} - -// serialization with pretty printing -// pass in the amount of spaces to indent -std::cout << j.dump(4) << std::endl; -// { -// "happy": true, -// "pi": 3.141 -// } -``` - -Note the difference between serialization and assignment: - -```cpp -// store a string in a JSON value -json j_string = "this is a string"; - -// retrieve the string value -auto cpp_string = j_string.get(); -// retrieve the string value (alternative when an variable already exists) -std::string cpp_string2; -j_string.get_to(cpp_string2); - -// retrieve the serialized value (explicit JSON serialization) -std::string serialized_string = j_string.dump(); - -// output of original string -std::cout << cpp_string << " == " << cpp_string2 << " == " << j_string.get() << '\n'; -// output of serialized value -std::cout << j_string << " == " << serialized_string << std::endl; -``` - -[`.dump()`](https://nlohmann.github.io/json/api/basic_json/dump/) returns the originally stored string value. - -Note the library only supports UTF-8. When you store strings with different encodings in the library, calling [`dump()`](https://nlohmann.github.io/json/api/basic_json/dump/) may throw an exception unless `json::error_handler_t::replace` or `json::error_handler_t::ignore` are used as error handlers. - -#### To/from streams (e.g. files, string streams) - -You can also use streams to serialize and deserialize: - -```cpp -// deserialize from standard input -json j; -std::cin >> j; - -// serialize to standard output -std::cout << j; - -// the setw manipulator was overloaded to set the indentation for pretty printing -std::cout << std::setw(4) << j << std::endl; -``` - -These operators work for any subclasses of `std::istream` or `std::ostream`. Here is the same example with files: - -```cpp -// read a JSON file -std::ifstream i("file.json"); -json j; -i >> j; - -// write prettified JSON to another file -std::ofstream o("pretty.json"); -o << std::setw(4) << j << std::endl; -``` - -Please note that setting the exception bit for `failbit` is inappropriate for this use case. It will result in program termination due to the `noexcept` specifier in use. - -#### Read from iterator range - -You can also parse JSON from an iterator range; that is, from any container accessible by iterators whose `value_type` is an integral type of 1, 2 or 4 bytes, which will be interpreted as UTF-8, UTF-16 and UTF-32 respectively. For instance, a `std::vector`, or a `std::list`: - -```cpp -std::vector v = {'t', 'r', 'u', 'e'}; -json j = json::parse(v.begin(), v.end()); -``` - -You may leave the iterators for the range [begin, end): - -```cpp -std::vector v = {'t', 'r', 'u', 'e'}; -json j = json::parse(v); -``` - -#### Custom data source - -Since the parse function accepts arbitrary iterator ranges, you can provide your own data sources by implementing the `LegacyInputIterator` concept. - -```cpp -struct MyContainer { - void advance(); - const char& get_current(); -}; - -struct MyIterator { - using difference_type = std::ptrdiff_t; - using value_type = char; - using pointer = const char*; - using reference = const char&; - using iterator_category = std::input_iterator_tag; - - MyIterator& operator++() { - MyContainer.advance(); - return *this; - } - - bool operator!=(const MyIterator& rhs) const { - return rhs.target != target; - } - - reference operator*() const { - return target.get_current(); - } - - MyContainer* target = nullptr; -}; - -MyIterator begin(MyContainer& tgt) { - return MyIterator{&tgt}; -} - -MyIterator end(const MyContainer&) { - return {}; -} - -void foo() { - MyContainer c; - json j = json::parse(c); -} -``` - -#### SAX interface - -The library uses a SAX-like interface with the following functions: - -```cpp -// called when null is parsed -bool null(); - -// called when a boolean is parsed; value is passed -bool boolean(bool val); - -// called when a signed or unsigned integer number is parsed; value is passed -bool number_integer(number_integer_t val); -bool number_unsigned(number_unsigned_t val); - -// called when a floating-point number is parsed; value and original string is passed -bool number_float(number_float_t val, const string_t& s); - -// called when a string is parsed; value is passed and can be safely moved away -bool string(string_t& val); -// called when a binary value is parsed; value is passed and can be safely moved away -bool binary(binary_t& val); - -// called when an object or array begins or ends, resp. The number of elements is passed (or -1 if not known) -bool start_object(std::size_t elements); -bool end_object(); -bool start_array(std::size_t elements); -bool end_array(); -// called when an object key is parsed; value is passed and can be safely moved away -bool key(string_t& val); - -// called when a parse error occurs; byte position, the last token, and an exception is passed -bool parse_error(std::size_t position, const std::string& last_token, const detail::exception& ex); -``` - -The return value of each function determines whether parsing should proceed. - -To implement your own SAX handler, proceed as follows: - -1. Implement the SAX interface in a class. You can use class `nlohmann::json_sax` as base class, but you can also use any class where the functions described above are implemented and public. -2. Create an object of your SAX interface class, e.g. `my_sax`. -3. Call `bool json::sax_parse(input, &my_sax)`; where the first parameter can be any input like a string or an input stream and the second parameter is a pointer to your SAX interface. - -Note the `sax_parse` function only returns a `bool` indicating the result of the last executed SAX event. It does not return a `json` value - it is up to you to decide what to do with the SAX events. Furthermore, no exceptions are thrown in case of a parse error - it is up to you what to do with the exception object passed to your `parse_error` implementation. Internally, the SAX interface is used for the DOM parser (class `json_sax_dom_parser`) as well as the acceptor (`json_sax_acceptor`), see file [`json_sax.hpp`](https://github.com/nlohmann/json/blob/develop/include/nlohmann/detail/input/json_sax.hpp). - -### STL-like access - -We designed the JSON class to behave just like an STL container. In fact, it satisfies the [**ReversibleContainer**](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) requirement. - -```cpp -// create an array using push_back -json j; -j.push_back("foo"); -j.push_back(1); -j.push_back(true); - -// also use emplace_back -j.emplace_back(1.78); - -// iterate the array -for (json::iterator it = j.begin(); it != j.end(); ++it) { - std::cout << *it << '\n'; -} - -// range-based for -for (auto& element : j) { - std::cout << element << '\n'; -} - -// getter/setter -const auto tmp = j[0].get(); -j[1] = 42; -bool foo = j.at(2); - -// comparison -j == R"(["foo", 1, true, 1.78])"_json; // true - -// other stuff -j.size(); // 4 entries -j.empty(); // false -j.type(); // json::value_t::array -j.clear(); // the array is empty again - -// convenience type checkers -j.is_null(); -j.is_boolean(); -j.is_number(); -j.is_object(); -j.is_array(); -j.is_string(); - -// create an object -json o; -o["foo"] = 23; -o["bar"] = false; -o["baz"] = 3.141; - -// also use emplace -o.emplace("weather", "sunny"); - -// special iterator member functions for objects -for (json::iterator it = o.begin(); it != o.end(); ++it) { - std::cout << it.key() << " : " << it.value() << "\n"; -} - -// the same code as range for -for (auto& el : o.items()) { - std::cout << el.key() << " : " << el.value() << "\n"; -} - -// even easier with structured bindings (C++17) -for (auto& [key, value] : o.items()) { - std::cout << key << " : " << value << "\n"; -} - -// find an entry -if (o.contains("foo")) { - // there is an entry with key "foo" -} - -// or via find and an iterator -if (o.find("foo") != o.end()) { - // there is an entry with key "foo" -} - -// or simpler using count() -int foo_present = o.count("foo"); // 1 -int fob_present = o.count("fob"); // 0 - -// delete an entry -o.erase("foo"); -``` - - -### Conversion from STL containers - -Any sequence container (`std::array`, `std::vector`, `std::deque`, `std::forward_list`, `std::list`) whose values can be used to construct JSON values (e.g., integers, floating point numbers, Booleans, string types, or again STL containers described in this section) can be used to create a JSON array. The same holds for similar associative containers (`std::set`, `std::multiset`, `std::unordered_set`, `std::unordered_multiset`), but in these cases the order of the elements of the array depends on how the elements are ordered in the respective STL container. - -```cpp -std::vector c_vector {1, 2, 3, 4}; -json j_vec(c_vector); -// [1, 2, 3, 4] - -std::deque c_deque {1.2, 2.3, 3.4, 5.6}; -json j_deque(c_deque); -// [1.2, 2.3, 3.4, 5.6] - -std::list c_list {true, true, false, true}; -json j_list(c_list); -// [true, true, false, true] - -std::forward_list c_flist {12345678909876, 23456789098765, 34567890987654, 45678909876543}; -json j_flist(c_flist); -// [12345678909876, 23456789098765, 34567890987654, 45678909876543] - -std::array c_array {{1, 2, 3, 4}}; -json j_array(c_array); -// [1, 2, 3, 4] - -std::set c_set {"one", "two", "three", "four", "one"}; -json j_set(c_set); // only one entry for "one" is used -// ["four", "one", "three", "two"] - -std::unordered_set c_uset {"one", "two", "three", "four", "one"}; -json j_uset(c_uset); // only one entry for "one" is used -// maybe ["two", "three", "four", "one"] - -std::multiset c_mset {"one", "two", "one", "four"}; -json j_mset(c_mset); // both entries for "one" are used -// maybe ["one", "two", "one", "four"] - -std::unordered_multiset c_umset {"one", "two", "one", "four"}; -json j_umset(c_umset); // both entries for "one" are used -// maybe ["one", "two", "one", "four"] -``` - -Likewise, any associative key-value containers (`std::map`, `std::multimap`, `std::unordered_map`, `std::unordered_multimap`) whose keys can construct an `std::string` and whose values can be used to construct JSON values (see examples above) can be used to create a JSON object. Note that in case of multimaps only one key is used in the JSON object and the value depends on the internal order of the STL container. - -```cpp -std::map c_map { {"one", 1}, {"two", 2}, {"three", 3} }; -json j_map(c_map); -// {"one": 1, "three": 3, "two": 2 } - -std::unordered_map c_umap { {"one", 1.2}, {"two", 2.3}, {"three", 3.4} }; -json j_umap(c_umap); -// {"one": 1.2, "two": 2.3, "three": 3.4} - -std::multimap c_mmap { {"one", true}, {"two", true}, {"three", false}, {"three", true} }; -json j_mmap(c_mmap); // only one entry for key "three" is used -// maybe {"one": true, "two": true, "three": true} - -std::unordered_multimap c_ummap { {"one", true}, {"two", true}, {"three", false}, {"three", true} }; -json j_ummap(c_ummap); // only one entry for key "three" is used -// maybe {"one": true, "two": true, "three": true} -``` - -### JSON Pointer and JSON Patch - -The library supports **JSON Pointer** ([RFC 6901](https://tools.ietf.org/html/rfc6901)) as alternative means to address structured values. On top of this, **JSON Patch** ([RFC 6902](https://tools.ietf.org/html/rfc6902)) allows to describe differences between two JSON values - effectively allowing patch and diff operations known from Unix. - -```cpp -// a JSON value -json j_original = R"({ - "baz": ["one", "two", "three"], - "foo": "bar" -})"_json; - -// access members with a JSON pointer (RFC 6901) -j_original["/baz/1"_json_pointer]; -// "two" - -// a JSON patch (RFC 6902) -json j_patch = R"([ - { "op": "replace", "path": "/baz", "value": "boo" }, - { "op": "add", "path": "/hello", "value": ["world"] }, - { "op": "remove", "path": "/foo"} -])"_json; - -// apply the patch -json j_result = j_original.patch(j_patch); -// { -// "baz": "boo", -// "hello": ["world"] -// } - -// calculate a JSON patch from two JSON values -json::diff(j_result, j_original); -// [ -// { "op":" replace", "path": "/baz", "value": ["one", "two", "three"] }, -// { "op": "remove","path": "/hello" }, -// { "op": "add", "path": "/foo", "value": "bar" } -// ] -``` - -### JSON Merge Patch - -The library supports **JSON Merge Patch** ([RFC 7386](https://tools.ietf.org/html/rfc7386)) as a patch format. Instead of using JSON Pointer (see above) to specify values to be manipulated, it describes the changes using a syntax that closely mimics the document being modified. - -```cpp -// a JSON value -json j_document = R"({ - "a": "b", - "c": { - "d": "e", - "f": "g" - } -})"_json; - -// a patch -json j_patch = R"({ - "a":"z", - "c": { - "f": null - } -})"_json; - -// apply the patch -j_document.merge_patch(j_patch); -// { -// "a": "z", -// "c": { -// "d": "e" -// } -// } -``` - -### Implicit conversions - -Supported types can be implicitly converted to JSON values. - -It is recommended to **NOT USE** implicit conversions **FROM** a JSON value. -You can find more details about this recommendation [here](https://www.github.com/nlohmann/json/issues/958). -You can switch off implicit conversions by defining `JSON_USE_IMPLICIT_CONVERSIONS` to `0` before including the `json.hpp` header. When using CMake, you can also achieve this by setting the option `JSON_ImplicitConversions` to `OFF`. - -```cpp -// strings -std::string s1 = "Hello, world!"; -json js = s1; -auto s2 = js.get(); -// NOT RECOMMENDED -std::string s3 = js; -std::string s4; -s4 = js; - -// Booleans -bool b1 = true; -json jb = b1; -auto b2 = jb.get(); -// NOT RECOMMENDED -bool b3 = jb; -bool b4; -b4 = jb; - -// numbers -int i = 42; -json jn = i; -auto f = jn.get(); -// NOT RECOMMENDED -double f2 = jb; -double f3; -f3 = jb; - -// etc. -``` - -Note that `char` types are not automatically converted to JSON strings, but to integer numbers. A conversion to a string must be specified explicitly: - -```cpp -char ch = 'A'; // ASCII value 65 -json j_default = ch; // stores integer number 65 -json j_string = std::string(1, ch); // stores string "A" -``` - -### Arbitrary types conversions - -Every type can be serialized in JSON, not just STL containers and scalar types. Usually, you would do something along those lines: - -```cpp -namespace ns { - // a simple struct to model a person - struct person { - std::string name; - std::string address; - int age; - }; -} - -ns::person p = {"Ned Flanders", "744 Evergreen Terrace", 60}; - -// convert to JSON: copy each value into the JSON object -json j; -j["name"] = p.name; -j["address"] = p.address; -j["age"] = p.age; - -// ... - -// convert from JSON: copy each value from the JSON object -ns::person p { - j["name"].get(), - j["address"].get(), - j["age"].get() -}; -``` - -It works, but that's quite a lot of boilerplate... Fortunately, there's a better way: - -```cpp -// create a person -ns::person p {"Ned Flanders", "744 Evergreen Terrace", 60}; - -// conversion: person -> json -json j = p; - -std::cout << j << std::endl; -// {"address":"744 Evergreen Terrace","age":60,"name":"Ned Flanders"} - -// conversion: json -> person -auto p2 = j.get(); - -// that's it -assert(p == p2); -``` - -#### Basic usage - -To make this work with one of your types, you only need to provide two functions: - -```cpp -using json = nlohmann::json; - -namespace ns { - void to_json(json& j, const person& p) { - j = json{{"name", p.name}, {"address", p.address}, {"age", p.age}}; - } - - void from_json(const json& j, person& p) { - j.at("name").get_to(p.name); - j.at("address").get_to(p.address); - j.at("age").get_to(p.age); - } -} // namespace ns -``` - -That's all! When calling the `json` constructor with your type, your custom `to_json` method will be automatically called. -Likewise, when calling `get()` or `get_to(your_type&)`, the `from_json` method will be called. - -Some important things: - -* Those methods **MUST** be in your type's namespace (which can be the global namespace), or the library will not be able to locate them (in this example, they are in namespace `ns`, where `person` is defined). -* Those methods **MUST** be available (e.g., proper headers must be included) everywhere you use these conversions. Look at [issue 1108](https://github.com/nlohmann/json/issues/1108) for errors that may occur otherwise. -* When using `get()`, `your_type` **MUST** be [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). (There is a way to bypass this requirement described later.) -* In function `from_json`, use function [`at()`](https://nlohmann.github.io/json/api/basic_json/at/) to access the object values rather than `operator[]`. In case a key does not exist, `at` throws an exception that you can handle, whereas `operator[]` exhibits undefined behavior. -* You do not need to add serializers or deserializers for STL types like `std::vector`: the library already implements these. - -#### Simplify your life with macros - -If you just want to serialize/deserialize some structs, the `to_json`/`from_json` functions can be a lot of boilerplate. - -There are two macros to make your life easier as long as you (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object: - -- `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the namespace of the class/struct to create code for. -- `NLOHMANN_DEFINE_TYPE_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the class/struct to create code for. This macro can also access private members. - -In both macros, the first parameter is the name of the class/struct, and all remaining parameters name the members. - -##### Examples - -The `to_json`/`from_json` functions for the `person` struct above can be created with: - -```cpp -namespace ns { - NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(person, name, address, age) -} -``` - -Here is an example with private members, where `NLOHMANN_DEFINE_TYPE_INTRUSIVE` is needed: - -```cpp -namespace ns { - class address { - private: - std::string street; - int housenumber; - int postcode; - - public: - NLOHMANN_DEFINE_TYPE_INTRUSIVE(address, street, housenumber, postcode) - }; -} -``` - -#### How do I convert third-party types? - -This requires a bit more advanced technique. But first, let's see how this conversion mechanism works: - -The library uses **JSON Serializers** to convert types to json. -The default serializer for `nlohmann::json` is `nlohmann::adl_serializer` (ADL means [Argument-Dependent Lookup](https://en.cppreference.com/w/cpp/language/adl)). - -It is implemented like this (simplified): - -```cpp -template -struct adl_serializer { - static void to_json(json& j, const T& value) { - // calls the "to_json" method in T's namespace - } - - static void from_json(const json& j, T& value) { - // same thing, but with the "from_json" method - } -}; -``` - -This serializer works fine when you have control over the type's namespace. However, what about `boost::optional` or `std::filesystem::path` (C++17)? Hijacking the `boost` namespace is pretty bad, and it's illegal to add something other than template specializations to `std`... - -To solve this, you need to add a specialization of `adl_serializer` to the `nlohmann` namespace, here's an example: - -```cpp -// partial specialization (full specialization works too) -namespace nlohmann { - template - struct adl_serializer> { - static void to_json(json& j, const boost::optional& opt) { - if (opt == boost::none) { - j = nullptr; - } else { - j = *opt; // this will call adl_serializer::to_json which will - // find the free function to_json in T's namespace! - } - } - - static void from_json(const json& j, boost::optional& opt) { - if (j.is_null()) { - opt = boost::none; - } else { - opt = j.get(); // same as above, but with - // adl_serializer::from_json - } - } - }; -} -``` - -#### How can I use `get()` for non-default constructible/non-copyable types? - -There is a way, if your type is [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible). You will need to specialize the `adl_serializer` as well, but with a special `from_json` overload: - -```cpp -struct move_only_type { - move_only_type() = delete; - move_only_type(int ii): i(ii) {} - move_only_type(const move_only_type&) = delete; - move_only_type(move_only_type&&) = default; - - int i; -}; - -namespace nlohmann { - template <> - struct adl_serializer { - // note: the return type is no longer 'void', and the method only takes - // one argument - static move_only_type from_json(const json& j) { - return {j.get()}; - } - - // Here's the catch! You must provide a to_json method! Otherwise you - // will not be able to convert move_only_type to json, since you fully - // specialized adl_serializer on that type - static void to_json(json& j, move_only_type t) { - j = t.i; - } - }; -} -``` - -#### Can I write my own serializer? (Advanced use) - -Yes. You might want to take a look at [`unit-udt.cpp`](https://github.com/nlohmann/json/blob/develop/test/src/unit-udt.cpp) in the test suite, to see a few examples. - -If you write your own serializer, you'll need to do a few things: - -- use a different `basic_json` alias than `nlohmann::json` (the last template parameter of `basic_json` is the `JSONSerializer`) -- use your `basic_json` alias (or a template parameter) in all your `to_json`/`from_json` methods -- use `nlohmann::to_json` and `nlohmann::from_json` when you need ADL - -Here is an example, without simplifications, that only accepts types with a size <= 32, and uses ADL. - -```cpp -// You should use void as a second template argument -// if you don't need compile-time checks on T -template::type> -struct less_than_32_serializer { - template - static void to_json(BasicJsonType& j, T value) { - // we want to use ADL, and call the correct to_json overload - using nlohmann::to_json; // this method is called by adl_serializer, - // this is where the magic happens - to_json(j, value); - } - - template - static void from_json(const BasicJsonType& j, T& value) { - // same thing here - using nlohmann::from_json; - from_json(j, value); - } -}; -``` - -Be **very** careful when reimplementing your serializer, you can stack overflow if you don't pay attention: - -```cpp -template -struct bad_serializer -{ - template - static void to_json(BasicJsonType& j, const T& value) { - // this calls BasicJsonType::json_serializer::to_json(j, value); - // if BasicJsonType::json_serializer == bad_serializer ... oops! - j = value; - } - - template - static void to_json(const BasicJsonType& j, T& value) { - // this calls BasicJsonType::json_serializer::from_json(j, value); - // if BasicJsonType::json_serializer == bad_serializer ... oops! - value = j.template get(); // oops! - } -}; -``` - -### Specializing enum conversion - -By default, enum values are serialized to JSON as integers. In some cases this could result in undesired behavior. If an enum is modified or re-ordered after data has been serialized to JSON, the later de-serialized JSON data may be undefined or a different enum value than was originally intended. - -It is possible to more precisely specify how a given enum is mapped to and from JSON as shown below: - -```cpp -// example enum type declaration -enum TaskState { - TS_STOPPED, - TS_RUNNING, - TS_COMPLETED, - TS_INVALID=-1, -}; - -// map TaskState values to JSON as strings -NLOHMANN_JSON_SERIALIZE_ENUM( TaskState, { - {TS_INVALID, nullptr}, - {TS_STOPPED, "stopped"}, - {TS_RUNNING, "running"}, - {TS_COMPLETED, "completed"}, -}) -``` - -The `NLOHMANN_JSON_SERIALIZE_ENUM()` macro declares a set of `to_json()` / `from_json()` functions for type `TaskState` while avoiding repetition and boilerplate serialization code. - -**Usage:** - -```cpp -// enum to JSON as string -json j = TS_STOPPED; -assert(j == "stopped"); - -// json string to enum -json j3 = "running"; -assert(j3.get() == TS_RUNNING); - -// undefined json value to enum (where the first map entry above is the default) -json jPi = 3.14; -assert(jPi.get() == TS_INVALID ); -``` - -Just as in [Arbitrary Type Conversions](#arbitrary-types-conversions) above, -- `NLOHMANN_JSON_SERIALIZE_ENUM()` MUST be declared in your enum type's namespace (which can be the global namespace), or the library will not be able to locate it and it will default to integer serialization. -- It MUST be available (e.g., proper headers must be included) everywhere you use the conversions. - -Other Important points: -- When using `get()`, undefined JSON values will default to the first pair specified in your map. Select this default pair carefully. -- If an enum or JSON value is specified more than once in your map, the first matching occurrence from the top of the map will be returned when converting to or from JSON. - -### Binary formats (BSON, CBOR, MessagePack, and UBJSON) - -Though JSON is a ubiquitous data format, it is not a very compact format suitable for data exchange, for instance over a network. Hence, the library supports [BSON](https://bsonspec.org) (Binary JSON), [CBOR](https://cbor.io) (Concise Binary Object Representation), [MessagePack](https://msgpack.org), and [UBJSON](https://ubjson.org) (Universal Binary JSON Specification) to efficiently encode JSON values to byte vectors and to decode such vectors. - -```cpp -// create a JSON value -json j = R"({"compact": true, "schema": 0})"_json; - -// serialize to BSON -std::vector v_bson = json::to_bson(j); - -// 0x1B, 0x00, 0x00, 0x00, 0x08, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0x00, 0x01, 0x10, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 - -// roundtrip -json j_from_bson = json::from_bson(v_bson); - -// serialize to CBOR -std::vector v_cbor = json::to_cbor(j); - -// 0xA2, 0x67, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0xF5, 0x66, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00 - -// roundtrip -json j_from_cbor = json::from_cbor(v_cbor); - -// serialize to MessagePack -std::vector v_msgpack = json::to_msgpack(j); - -// 0x82, 0xA7, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0xC3, 0xA6, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00 - -// roundtrip -json j_from_msgpack = json::from_msgpack(v_msgpack); - -// serialize to UBJSON -std::vector v_ubjson = json::to_ubjson(j); - -// 0x7B, 0x69, 0x07, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0x54, 0x69, 0x06, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x69, 0x00, 0x7D - -// roundtrip -json j_from_ubjson = json::from_ubjson(v_ubjson); -``` - -The library also supports binary types from BSON, CBOR (byte strings), and MessagePack (bin, ext, fixext). They are stored by default as `std::vector` to be processed outside of the library. - -```cpp -// CBOR byte string with payload 0xCAFE -std::vector v = {0x42, 0xCA, 0xFE}; - -// read value -json j = json::from_cbor(v); - -// the JSON value has type binary -j.is_binary(); // true - -// get reference to stored binary value -auto& binary = j.get_binary(); - -// the binary value has no subtype (CBOR has no binary subtypes) -binary.has_subtype(); // false - -// access std::vector member functions -binary.size(); // 2 -binary[0]; // 0xCA -binary[1]; // 0xFE - -// set subtype to 0x10 -binary.set_subtype(0x10); - -// serialize to MessagePack -auto cbor = json::to_msgpack(j); // 0xD5 (fixext2), 0x10, 0xCA, 0xFE -``` - - -## Supported compilers - -Though it's 2021 already, the support for C++11 is still a bit sparse. Currently, the following compilers are known to work: - -- GCC 4.8 - 11.0 (and possibly later) -- Clang 3.4 - 12.0 (and possibly later) -- Apple Clang 9.1 - 12.4 (and possibly later) -- Intel C++ Compiler 17.0.2 (and possibly later) -- Microsoft Visual C++ 2015 / Build Tools 14.0.25123.0 (and possibly later) -- Microsoft Visual C++ 2017 / Build Tools 15.5.180.51428 (and possibly later) -- Microsoft Visual C++ 2019 / Build Tools 16.3.1+1def00d3d (and possibly later) - -I would be happy to learn about other compilers/versions. - -Please note: - -- GCC 4.8 has a bug [57824](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57824)): multiline raw strings cannot be the arguments to macros. Don't use multiline raw strings directly in macros with this compiler. -- Android defaults to using very old compilers and C++ libraries. To fix this, add the following to your `Application.mk`. This will switch to the LLVM C++ library, the Clang compiler, and enable C++11 and other features disabled by default. - - ``` - APP_STL := c++_shared - NDK_TOOLCHAIN_VERSION := clang3.6 - APP_CPPFLAGS += -frtti -fexceptions - ``` - - The code compiles successfully with [Android NDK](https://developer.android.com/ndk/index.html?hl=ml), Revision 9 - 11 (and possibly later) and [CrystaX's Android NDK](https://www.crystax.net/en/android/ndk) version 10. - -- For GCC running on MinGW or Android SDK, the error `'to_string' is not a member of 'std'` (or similarly, for `strtod` or `strtof`) may occur. Note this is not an issue with the code, but rather with the compiler itself. On Android, see above to build with a newer environment. For MinGW, please refer to [this site](https://tehsausage.com/mingw-to-string) and [this discussion](https://github.com/nlohmann/json/issues/136) for information on how to fix this bug. For Android NDK using `APP_STL := gnustl_static`, please refer to [this discussion](https://github.com/nlohmann/json/issues/219). - -- Unsupported versions of GCC and Clang are rejected by `#error` directives. This can be switched off by defining `JSON_SKIP_UNSUPPORTED_COMPILER_CHECK`. Note that you can expect no support in this case. - -The following compilers are currently used in continuous integration at [Travis](https://travis-ci.org/nlohmann/json), [AppVeyor](https://ci.appveyor.com/project/nlohmann/json), [Drone CI](https://cloud.drone.io/nlohmann/json), and [GitHub Actions](https://github.com/nlohmann/json/actions): - -| Compiler | Operating System | CI Provider | -|-------------------------------------------------------------------|--------------------|----------------| -| Apple Clang 10.0.1 (clang-1001.0.46.4); Xcode 10.2.1 | macOS 10.14.4 | Travis | -| Apple Clang 10.0.1 (clang-1001.0.46.4); Xcode 10.3 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 11.0.0 (clang-1100.0.33.12); Xcode 11.2.1 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 11.0.0 (clang-1100.0.33.17); Xcode 11.3.1 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 11.0.3 (clang-1103.0.32.59); Xcode 11.4.1 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 11.0.3 (clang-1103.0.32.62); Xcode 11.5 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 11.0.3 (clang-1103.0.32.62); Xcode 11.6 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 11.0.3 (clang-1103.0.32.62); Xcode 11.7 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 12.0.0 (clang-1200.0.32.2); Xcode 12 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 12.0.0 (clang-1200.0.32.21); Xcode 12.1 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 12.0.0 (clang-1200.0.32.21); Xcode 12.1.1 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 12.0.0 (clang-1200.0.32.27); Xcode 12.2 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 12.0.0 (clang-1200.0.32.28); Xcode 12.3 | macOS 10.15.7 | GitHub Actions | -| Apple Clang 12.0.0 (clang-1200.0.32.29); Xcode 12.4 | macOS 10.15.7 | GitHub Actions | -| GCC 4.8.5 (Ubuntu 4.8.5-4ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 4.9.3 (Ubuntu 4.9.3-13ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 6.5.0 (Ubuntu 6.5.0-2ubuntu1~14.04.1) | Ubuntu 14.04.5 LTS | Travis | -| GCC 7.5.0 (Ubuntu 7.5.0-6ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 8.1.0 (x86_64-posix-seh-rev0, Built by MinGW-W64 project) | Windows-10.0.17763 | GitHub Actions | -| GCC 8.1.0 (i686-posix-dwarf-rev0, Built by MinGW-W64 project) | Windows-10.0.17763 | GitHub Actions | -| GCC 8.4.0 (Ubuntu 8.4.0-3ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 10.2.0 (Ubuntu 10.2.0-5ubuntu1~20.04) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 11.0.1 20210321 (experimental) | Ubuntu 20.04.2 LTS | GitHub Actions | -| GCC 11.1.0 | Ubuntu (aarch64) | Drone CI | -| Clang 3.5.2 (3.5.2-3ubuntu1) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 3.6.2 (3.6.2-3ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 3.7.1 (3.7.1-2ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 3.8.0 (3.8.0-2ubuntu4) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 3.9.1 (3.9.1-4ubuntu3\~16.04.2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 4.0.0 (4.0.0-1ubuntu1\~16.04.2) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 5.0.0 (5.0.0-3\~16.04.1) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 6.0.1 (6.0.1-14) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 7.0.1 (7.0.1-12) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 8.0.1 (8.0.1-9) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 9.0.1 (9.0.1-12) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 10.0.0 (10.0.0-4ubuntu1) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 10.0.0 with GNU-like command-line | Windows-10.0.17763 | GitHub Actions | -| Clang 11.0.0 with GNU-like command-line | Windows-10.0.17763 | GitHub Actions | -| Clang 11.0.0 with MSVC-like command-line | Windows-10.0.17763 | GitHub Actions | -| Clang 11.0.0 (11.0.0-2~ubuntu20.04.1) | Ubuntu 20.04.2 LTS | GitHub Actions | -| Clang 12.1.0 (12.0.1-++20210423082613+072c90a863aa-1~exp1~20210423063319.76 | Ubuntu 20.04.2 LTS | GitHub Actions | -| Visual Studio 14 2015 MSVC 19.0.24241.7 (Build Engine version 14.0.25420.1) | Windows-6.3.9600 | AppVeyor | -| Visual Studio 15 2017 MSVC 19.16.27035.0 (Build Engine version 15.9.21+g9802d43bc3 for .NET Framework) | Windows-10.0.14393 | AppVeyor | -| Visual Studio 15 2017 MSVC 19.16.27045.0 (Build Engine version 15.9.21+g9802d43bc3 for .NET Framework) | Windows-10.0.14393 | GitHub Actions | -| Visual Studio 16 2019 MSVC 19.28.29912.0 (Build Engine version 16.9.0+57a23d249 for .NET Framework) | Windows-10.0.17763 | GitHub Actions | -| Visual Studio 16 2019 MSVC 19.28.29912.0 (Build Engine version 16.9.0+57a23d249 for .NET Framework) | Windows-10.0.17763 | AppVeyor | - - -## Integration - -[`json.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json.hpp) is the single required file in `single_include/nlohmann` or [released here](https://github.com/nlohmann/json/releases). You need to add - -```cpp -#include - -// for convenience -using json = nlohmann::json; -``` - -to the files you want to process JSON and set the necessary switches to enable C++11 (e.g., `-std=c++11` for GCC and Clang). - -You can further use file [`include/nlohmann/json_fwd.hpp`](https://github.com/nlohmann/json/blob/develop/include/nlohmann/json_fwd.hpp) for forward-declarations. The installation of json_fwd.hpp (as part of cmake's install step), can be achieved by setting `-DJSON_MultipleHeaders=ON`. - -### CMake - -You can also use the `nlohmann_json::nlohmann_json` interface target in CMake. This target populates the appropriate usage requirements for `INTERFACE_INCLUDE_DIRECTORIES` to point to the appropriate include directories and `INTERFACE_COMPILE_FEATURES` for the necessary C++11 flags. - -#### External - -To use this library from a CMake project, you can locate it directly with `find_package()` and use the namespaced imported target from the generated package configuration: - -```cmake -# CMakeLists.txt -find_package(nlohmann_json 3.2.0 REQUIRED) -... -add_library(foo ...) -... -target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) -``` - -The package configuration file, `nlohmann_jsonConfig.cmake`, can be used either from an install tree or directly out of the build tree. - -#### Embedded - -To embed the library directly into an existing CMake project, place the entire source tree in a subdirectory and call `add_subdirectory()` in your `CMakeLists.txt` file: - -```cmake -# Typically you don't care so much for a third party library's tests to be -# run from your own project's code. -set(JSON_BuildTests OFF CACHE INTERNAL "") - -# If you only include this third party in PRIVATE source files, you do not -# need to install it when your main project gets installed. -# set(JSON_Install OFF CACHE INTERNAL "") - -# Don't use include(nlohmann_json/CMakeLists.txt) since that carries with it -# unintended consequences that will break the build. It's generally -# discouraged (although not necessarily well documented as such) to use -# include(...) for pulling in other CMake projects anyways. -add_subdirectory(nlohmann_json) -... -add_library(foo ...) -... -target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) -``` - -##### Embedded (FetchContent) - -Since CMake v3.11, -[FetchContent](https://cmake.org/cmake/help/v3.11/module/FetchContent.html) can -be used to automatically download the repository as a dependency at configure time. - -Example: -```cmake -include(FetchContent) - -FetchContent_Declare(json - GIT_REPOSITORY https://github.com/nlohmann/json.git - GIT_TAG v3.7.3) - -FetchContent_GetProperties(json) -if(NOT json_POPULATED) - FetchContent_Populate(json) - add_subdirectory(${json_SOURCE_DIR} ${json_BINARY_DIR} EXCLUDE_FROM_ALL) -endif() - -target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) -``` - -**Note**: The repository https://github.com/nlohmann/json download size is huge. -It contains all the dataset used for the benchmarks. You might want to depend on -a smaller repository. For instance, you might want to replace the URL above by -https://github.com/ArthurSonzogni/nlohmann_json_cmake_fetchcontent - -#### Supporting Both - -To allow your project to support either an externally supplied or an embedded JSON library, you can use a pattern akin to the following: - -``` cmake -# Top level CMakeLists.txt -project(FOO) -... -option(FOO_USE_EXTERNAL_JSON "Use an external JSON library" OFF) -... -add_subdirectory(thirdparty) -... -add_library(foo ...) -... -# Note that the namespaced target will always be available regardless of the -# import method -target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) -``` -```cmake -# thirdparty/CMakeLists.txt -... -if(FOO_USE_EXTERNAL_JSON) - find_package(nlohmann_json 3.2.0 REQUIRED) -else() - set(JSON_BuildTests OFF CACHE INTERNAL "") - add_subdirectory(nlohmann_json) -endif() -... -``` - -`thirdparty/nlohmann_json` is then a complete copy of this source tree. - -### Package Managers - -:beer: If you are using OS X and [Homebrew](https://brew.sh), just type `brew tap nlohmann/json` and `brew install nlohmann-json` and you're set. If you want the bleeding edge rather than the latest release, use `brew install nlohmann-json --HEAD`. - -If you are using the [Meson Build System](https://mesonbuild.com), add this source tree as a [meson subproject](https://mesonbuild.com/Subprojects.html#using-a-subproject). You may also use the `include.zip` published in this project's [Releases](https://github.com/nlohmann/json/releases) to reduce the size of the vendored source tree. Alternatively, you can get a wrap file by downloading it from [Meson WrapDB](https://wrapdb.mesonbuild.com/nlohmann_json), or simply use `meson wrap install nlohmann_json`. Please see the meson project for any issues regarding the packaging. - -The provided meson.build can also be used as an alternative to cmake for installing `nlohmann_json` system-wide in which case a pkg-config file is installed. To use it, simply have your build system require the `nlohmann_json` pkg-config dependency. In Meson, it is preferred to use the [`dependency()`](https://mesonbuild.com/Reference-manual.html#dependency) object with a subproject fallback, rather than using the subproject directly. - -If you are using [Conan](https://www.conan.io/) to manage your dependencies, merely add [`nlohmann_json/x.y.z`](https://conan.io/center/nlohmann_json) to your `conanfile`'s requires, where `x.y.z` is the release version you want to use. Please file issues [here](https://github.com/conan-io/conan-center-index/issues) if you experience problems with the packages. - -If you are using [Spack](https://www.spack.io/) to manage your dependencies, you can use the [`nlohmann-json` package](https://spack.readthedocs.io/en/latest/package_list.html#nlohmann-json). Please see the [spack project](https://github.com/spack/spack) for any issues regarding the packaging. - -If you are using [hunter](https://github.com/cpp-pm/hunter) on your project for external dependencies, then you can use the [nlohmann_json package](https://hunter.readthedocs.io/en/latest/packages/pkg/nlohmann_json.html). Please see the hunter project for any issues regarding the packaging. - -If you are using [Buckaroo](https://buckaroo.pm), you can install this library's module with `buckaroo add github.com/buckaroo-pm/nlohmann-json`. Please file issues [here](https://github.com/buckaroo-pm/nlohmann-json). There is a demo repo [here](https://github.com/njlr/buckaroo-nholmann-json-example). - -If you are using [vcpkg](https://github.com/Microsoft/vcpkg/) on your project for external dependencies, then you can use the [nlohmann-json package](https://github.com/Microsoft/vcpkg/tree/master/ports/nlohmann-json). Please see the vcpkg project for any issues regarding the packaging. - -If you are using [cget](https://cget.readthedocs.io/en/latest/), you can install the latest development version with `cget install nlohmann/json`. A specific version can be installed with `cget install nlohmann/json@v3.1.0`. Also, the multiple header version can be installed by adding the `-DJSON_MultipleHeaders=ON` flag (i.e., `cget install nlohmann/json -DJSON_MultipleHeaders=ON`). - -If you are using [CocoaPods](https://cocoapods.org), you can use the library by adding pod `"nlohmann_json", '~>3.1.2'` to your podfile (see [an example](https://bitbucket.org/benman/nlohmann_json-cocoapod/src/master/)). Please file issues [here](https://bitbucket.org/benman/nlohmann_json-cocoapod/issues?status=new&status=open). - -If you are using [NuGet](https://www.nuget.org), you can use the package [nlohmann.json](https://www.nuget.org/packages/nlohmann.json/). Please check [this extensive description](https://github.com/nlohmann/json/issues/1132#issuecomment-452250255) on how to use the package. Please files issues [here](https://github.com/hnkb/nlohmann-json-nuget/issues). - -If you are using [conda](https://conda.io/), you can use the package [nlohmann_json](https://github.com/conda-forge/nlohmann_json-feedstock) from [conda-forge](https://conda-forge.org) executing `conda install -c conda-forge nlohmann_json`. Please file issues [here](https://github.com/conda-forge/nlohmann_json-feedstock/issues). - -If you are using [MSYS2](https://www.msys2.org/), your can use the [mingw-w64-nlohmann-json](https://packages.msys2.org/base/mingw-w64-nlohmann-json) package, just type `pacman -S mingw-w64-i686-nlohmann-json` or `pacman -S mingw-w64-x86_64-nlohmann-json` for installation. Please file issues [here](https://github.com/msys2/MINGW-packages/issues/new?title=%5Bnlohmann-json%5D) if you experience problems with the packages. - -If you are using [`build2`](https://build2.org), you can use the [`nlohmann-json`](https://cppget.org/nlohmann-json) package from the public repository https://cppget.org or directly from the [package's sources repository](https://github.com/build2-packaging/nlohmann-json). In your project's `manifest` file, just add `depends: nlohmann-json` (probably with some [version constraints](https://build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml#guide-add-remove-deps)). If you are not familiar with using dependencies in `build2`, [please read this introduction](https://build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml). -Please file issues [here](https://github.com/build2-packaging/nlohmann-json) if you experience problems with the packages. - -If you are using [`wsjcpp`](https://wsjcpp.org), you can use the command `wsjcpp install "https://github.com/nlohmann/json:develop"` to get the latest version. Note you can change the branch ":develop" to an existing tag or another branch. - -If you are using [`CPM.cmake`](https://github.com/TheLartians/CPM.cmake), you can check this [`example`](https://github.com/TheLartians/CPM.cmake/tree/master/examples/json). After [adding CPM script](https://github.com/TheLartians/CPM.cmake#adding-cpm) to your project, implement the following snippet to your CMake: - -```cmake -CPMAddPackage( - NAME nlohmann_json - GITHUB_REPOSITORY nlohmann/json - VERSION 3.9.1) -``` - -### Pkg-config - -If you are using bare Makefiles, you can use `pkg-config` to generate the include flags that point to where the library is installed: - -```sh -pkg-config nlohmann_json --cflags -``` - -Users of the Meson build system will also be able to use a system wide library, which will be found by `pkg-config`: - -```meson -json = dependency('nlohmann_json', required: true) -``` - - -## License - - - -The class is licensed under the [MIT License](https://opensource.org/licenses/MIT): - -Copyright © 2013-2021 [Niels Lohmann](https://nlohmann.me) - -Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -* * * - -The class contains the UTF-8 Decoder from Bjoern Hoehrmann which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright © 2008-2009 [Björn Hoehrmann](https://bjoern.hoehrmann.de/) - -The class contains a slightly modified version of the Grisu2 algorithm from Florian Loitsch which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright © 2009 [Florian Loitsch](https://florian.loitsch.com/) - -The class contains a copy of [Hedley](https://nemequ.github.io/hedley/) from Evan Nemerson which is licensed as [CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/). - -The class contains parts of [Google Abseil](https://github.com/abseil/abseil-cpp) which is licensed under the [Apache 2.0 License](https://opensource.org/licenses/Apache-2.0). - -## Contact - -If you have questions regarding the library, I would like to invite you to [open an issue at GitHub](https://github.com/nlohmann/json/issues/new/choose). Please describe your request, problem, or question as detailed as possible, and also mention the version of the library you are using as well as the version of your compiler and operating system. Opening an issue at GitHub allows other users and contributors to this library to collaborate. For instance, I have little experience with MSVC, and most issues in this regard have been solved by a growing community. If you have a look at the [closed issues](https://github.com/nlohmann/json/issues?q=is%3Aissue+is%3Aclosed), you will see that we react quite timely in most cases. - -Only if your request would contain confidential information, please [send me an email](mailto:mail@nlohmann.me). For encrypted messages, please use [this key](https://keybase.io/nlohmann/pgp_keys.asc). - -## Security - -[Commits by Niels Lohmann](https://github.com/nlohmann/json/commits) and [releases](https://github.com/nlohmann/json/releases) are signed with this [PGP Key](https://keybase.io/nlohmann/pgp_keys.asc?fingerprint=797167ae41c0a6d9232e48457f3cea63ae251b69). - -## Thanks - -I deeply appreciate the help of the following people. - - - -- [Teemperor](https://github.com/Teemperor) implemented CMake support and lcov integration, realized escape and Unicode handling in the string parser, and fixed the JSON serialization. -- [elliotgoodrich](https://github.com/elliotgoodrich) fixed an issue with double deletion in the iterator classes. -- [kirkshoop](https://github.com/kirkshoop) made the iterators of the class composable to other libraries. -- [wancw](https://github.com/wanwc) fixed a bug that hindered the class to compile with Clang. -- Tomas Åblad found a bug in the iterator implementation. -- [Joshua C. Randall](https://github.com/jrandall) fixed a bug in the floating-point serialization. -- [Aaron Burghardt](https://github.com/aburgh) implemented code to parse streams incrementally. Furthermore, he greatly improved the parser class by allowing the definition of a filter function to discard undesired elements while parsing. -- [Daniel Kopeček](https://github.com/dkopecek) fixed a bug in the compilation with GCC 5.0. -- [Florian Weber](https://github.com/Florianjw) fixed a bug in and improved the performance of the comparison operators. -- [Eric Cornelius](https://github.com/EricMCornelius) pointed out a bug in the handling with NaN and infinity values. He also improved the performance of the string escaping. -- [易思龙](https://github.com/likebeta) implemented a conversion from anonymous enums. -- [kepkin](https://github.com/kepkin) patiently pushed forward the support for Microsoft Visual studio. -- [gregmarr](https://github.com/gregmarr) simplified the implementation of reverse iterators and helped with numerous hints and improvements. In particular, he pushed forward the implementation of user-defined types. -- [Caio Luppi](https://github.com/caiovlp) fixed a bug in the Unicode handling. -- [dariomt](https://github.com/dariomt) fixed some typos in the examples. -- [Daniel Frey](https://github.com/d-frey) cleaned up some pointers and implemented exception-safe memory allocation. -- [Colin Hirsch](https://github.com/ColinH) took care of a small namespace issue. -- [Huu Nguyen](https://github.com/whoshuu) correct a variable name in the documentation. -- [Silverweed](https://github.com/silverweed) overloaded `parse()` to accept an rvalue reference. -- [dariomt](https://github.com/dariomt) fixed a subtlety in MSVC type support and implemented the `get_ref()` function to get a reference to stored values. -- [ZahlGraf](https://github.com/ZahlGraf) added a workaround that allows compilation using Android NDK. -- [whackashoe](https://github.com/whackashoe) replaced a function that was marked as unsafe by Visual Studio. -- [406345](https://github.com/406345) fixed two small warnings. -- [Glen Fernandes](https://github.com/glenfe) noted a potential portability problem in the `has_mapped_type` function. -- [Corbin Hughes](https://github.com/nibroc) fixed some typos in the contribution guidelines. -- [twelsby](https://github.com/twelsby) fixed the array subscript operator, an issue that failed the MSVC build, and floating-point parsing/dumping. He further added support for unsigned integer numbers and implemented better roundtrip support for parsed numbers. -- [Volker Diels-Grabsch](https://github.com/vog) fixed a link in the README file. -- [msm-](https://github.com/msm-) added support for American Fuzzy Lop. -- [Annihil](https://github.com/Annihil) fixed an example in the README file. -- [Themercee](https://github.com/Themercee) noted a wrong URL in the README file. -- [Lv Zheng](https://github.com/lv-zheng) fixed a namespace issue with `int64_t` and `uint64_t`. -- [abc100m](https://github.com/abc100m) analyzed the issues with GCC 4.8 and proposed a [partial solution](https://github.com/nlohmann/json/pull/212). -- [zewt](https://github.com/zewt) added useful notes to the README file about Android. -- [Róbert Márki](https://github.com/robertmrk) added a fix to use move iterators and improved the integration via CMake. -- [Chris Kitching](https://github.com/ChrisKitching) cleaned up the CMake files. -- [Tom Needham](https://github.com/06needhamt) fixed a subtle bug with MSVC 2015 which was also proposed by [Michael K.](https://github.com/Epidal). -- [Mário Feroldi](https://github.com/thelostt) fixed a small typo. -- [duncanwerner](https://github.com/duncanwerner) found a really embarrassing performance regression in the 2.0.0 release. -- [Damien](https://github.com/dtoma) fixed one of the last conversion warnings. -- [Thomas Braun](https://github.com/t-b) fixed a warning in a test case and adjusted MSVC calls in the CI. -- [Théo DELRIEU](https://github.com/theodelrieu) patiently and constructively oversaw the long way toward [iterator-range parsing](https://github.com/nlohmann/json/issues/290). He also implemented the magic behind the serialization/deserialization of user-defined types and split the single header file into smaller chunks. -- [Stefan](https://github.com/5tefan) fixed a minor issue in the documentation. -- [Vasil Dimov](https://github.com/vasild) fixed the documentation regarding conversions from `std::multiset`. -- [ChristophJud](https://github.com/ChristophJud) overworked the CMake files to ease project inclusion. -- [Vladimir Petrigo](https://github.com/vpetrigo) made a SFINAE hack more readable and added Visual Studio 17 to the build matrix. -- [Denis Andrejew](https://github.com/seeekr) fixed a grammar issue in the README file. -- [Pierre-Antoine Lacaze](https://github.com/palacaze) found a subtle bug in the `dump()` function. -- [TurpentineDistillery](https://github.com/TurpentineDistillery) pointed to [`std::locale::classic()`](https://en.cppreference.com/w/cpp/locale/locale/classic) to avoid too much locale joggling, found some nice performance improvements in the parser, improved the benchmarking code, and realized locale-independent number parsing and printing. -- [cgzones](https://github.com/cgzones) had an idea how to fix the Coverity scan. -- [Jared Grubb](https://github.com/jaredgrubb) silenced a nasty documentation warning. -- [Yixin Zhang](https://github.com/qwename) fixed an integer overflow check. -- [Bosswestfalen](https://github.com/Bosswestfalen) merged two iterator classes into a smaller one. -- [Daniel599](https://github.com/Daniel599) helped to get Travis execute the tests with Clang's sanitizers. -- [Jonathan Lee](https://github.com/vjon) fixed an example in the README file. -- [gnzlbg](https://github.com/gnzlbg) supported the implementation of user-defined types. -- [Alexej Harm](https://github.com/qis) helped to get the user-defined types working with Visual Studio. -- [Jared Grubb](https://github.com/jaredgrubb) supported the implementation of user-defined types. -- [EnricoBilla](https://github.com/EnricoBilla) noted a typo in an example. -- [Martin Hořeňovský](https://github.com/horenmar) found a way for a 2x speedup for the compilation time of the test suite. -- [ukhegg](https://github.com/ukhegg) found proposed an improvement for the examples section. -- [rswanson-ihi](https://github.com/rswanson-ihi) noted a typo in the README. -- [Mihai Stan](https://github.com/stanmihai4) fixed a bug in the comparison with `nullptr`s. -- [Tushar Maheshwari](https://github.com/tusharpm) added [cotire](https://github.com/sakra/cotire) support to speed up the compilation. -- [TedLyngmo](https://github.com/TedLyngmo) noted a typo in the README, removed unnecessary bit arithmetic, and fixed some `-Weffc++` warnings. -- [Krzysztof Woś](https://github.com/krzysztofwos) made exceptions more visible. -- [ftillier](https://github.com/ftillier) fixed a compiler warning. -- [tinloaf](https://github.com/tinloaf) made sure all pushed warnings are properly popped. -- [Fytch](https://github.com/Fytch) found a bug in the documentation. -- [Jay Sistar](https://github.com/Type1J) implemented a Meson build description. -- [Henry Lee](https://github.com/HenryRLee) fixed a warning in ICC and improved the iterator implementation. -- [Vincent Thiery](https://github.com/vthiery) maintains a package for the Conan package manager. -- [Steffen](https://github.com/koemeet) fixed a potential issue with MSVC and `std::min`. -- [Mike Tzou](https://github.com/Chocobo1) fixed some typos. -- [amrcode](https://github.com/amrcode) noted a misleading documentation about comparison of floats. -- [Oleg Endo](https://github.com/olegendo) reduced the memory consumption by replacing `` with ``. -- [dan-42](https://github.com/dan-42) cleaned up the CMake files to simplify including/reusing of the library. -- [Nikita Ofitserov](https://github.com/himikof) allowed for moving values from initializer lists. -- [Greg Hurrell](https://github.com/wincent) fixed a typo. -- [Dmitry Kukovinets](https://github.com/DmitryKuk) fixed a typo. -- [kbthomp1](https://github.com/kbthomp1) fixed an issue related to the Intel OSX compiler. -- [Markus Werle](https://github.com/daixtrose) fixed a typo. -- [WebProdPP](https://github.com/WebProdPP) fixed a subtle error in a precondition check. -- [Alex](https://github.com/leha-bot) noted an error in a code sample. -- [Tom de Geus](https://github.com/tdegeus) reported some warnings with ICC and helped fixing them. -- [Perry Kundert](https://github.com/pjkundert) simplified reading from input streams. -- [Sonu Lohani](https://github.com/sonulohani) fixed a small compilation error. -- [Jamie Seward](https://github.com/jseward) fixed all MSVC warnings. -- [Nate Vargas](https://github.com/eld00d) added a Doxygen tag file. -- [pvleuven](https://github.com/pvleuven) helped fixing a warning in ICC. -- [Pavel](https://github.com/crea7or) helped fixing some warnings in MSVC. -- [Jamie Seward](https://github.com/jseward) avoided unnecessary string copies in `find()` and `count()`. -- [Mitja](https://github.com/Itja) fixed some typos. -- [Jorrit Wronski](https://github.com/jowr) updated the Hunter package links. -- [Matthias Möller](https://github.com/TinyTinni) added a `.natvis` for the MSVC debug view. -- [bogemic](https://github.com/bogemic) fixed some C++17 deprecation warnings. -- [Eren Okka](https://github.com/erengy) fixed some MSVC warnings. -- [abolz](https://github.com/abolz) integrated the Grisu2 algorithm for proper floating-point formatting, allowing more roundtrip checks to succeed. -- [Vadim Evard](https://github.com/Pipeliner) fixed a Markdown issue in the README. -- [zerodefect](https://github.com/zerodefect) fixed a compiler warning. -- [Kert](https://github.com/kaidokert) allowed to template the string type in the serialization and added the possibility to override the exceptional behavior. -- [mark-99](https://github.com/mark-99) helped fixing an ICC error. -- [Patrik Huber](https://github.com/patrikhuber) fixed links in the README file. -- [johnfb](https://github.com/johnfb) found a bug in the implementation of CBOR's indefinite length strings. -- [Paul Fultz II](https://github.com/pfultz2) added a note on the cget package manager. -- [Wilson Lin](https://github.com/wla80) made the integration section of the README more concise. -- [RalfBielig](https://github.com/ralfbielig) detected and fixed a memory leak in the parser callback. -- [agrianius](https://github.com/agrianius) allowed to dump JSON to an alternative string type. -- [Kevin Tonon](https://github.com/ktonon) overworked the C++11 compiler checks in CMake. -- [Axel Huebl](https://github.com/ax3l) simplified a CMake check and added support for the [Spack package manager](https://spack.io). -- [Carlos O'Ryan](https://github.com/coryan) fixed a typo. -- [James Upjohn](https://github.com/jammehcow) fixed a version number in the compilers section. -- [Chuck Atkins](https://github.com/chuckatkins) adjusted the CMake files to the CMake packaging guidelines and provided documentation for the CMake integration. -- [Jan Schöppach](https://github.com/dns13) fixed a typo. -- [martin-mfg](https://github.com/martin-mfg) fixed a typo. -- [Matthias Möller](https://github.com/TinyTinni) removed the dependency from `std::stringstream`. -- [agrianius](https://github.com/agrianius) added code to use alternative string implementations. -- [Daniel599](https://github.com/Daniel599) allowed to use more algorithms with the `items()` function. -- [Julius Rakow](https://github.com/jrakow) fixed the Meson include directory and fixed the links to [cppreference.com](cppreference.com). -- [Sonu Lohani](https://github.com/sonulohani) fixed the compilation with MSVC 2015 in debug mode. -- [grembo](https://github.com/grembo) fixed the test suite and re-enabled several test cases. -- [Hyeon Kim](https://github.com/simnalamburt) introduced the macro `JSON_INTERNAL_CATCH` to control the exception handling inside the library. -- [thyu](https://github.com/thyu) fixed a compiler warning. -- [David Guthrie](https://github.com/LEgregius) fixed a subtle compilation error with Clang 3.4.2. -- [Dennis Fischer](https://github.com/dennisfischer) allowed to call `find_package` without installing the library. -- [Hyeon Kim](https://github.com/simnalamburt) fixed an issue with a double macro definition. -- [Ben Berman](https://github.com/rivertam) made some error messages more understandable. -- [zakalibit](https://github.com/zakalibit) fixed a compilation problem with the Intel C++ compiler. -- [mandreyel](https://github.com/mandreyel) fixed a compilation problem. -- [Kostiantyn Ponomarenko](https://github.com/koponomarenko) added version and license information to the Meson build file. -- [Henry Schreiner](https://github.com/henryiii) added support for GCC 4.8. -- [knilch](https://github.com/knilch0r) made sure the test suite does not stall when run in the wrong directory. -- [Antonio Borondo](https://github.com/antonioborondo) fixed an MSVC 2017 warning. -- [Dan Gendreau](https://github.com/dgendreau) implemented the `NLOHMANN_JSON_SERIALIZE_ENUM` macro to quickly define a enum/JSON mapping. -- [efp](https://github.com/efp) added line and column information to parse errors. -- [julian-becker](https://github.com/julian-becker) added BSON support. -- [Pratik Chowdhury](https://github.com/pratikpc) added support for structured bindings. -- [David Avedissian](https://github.com/davedissian) added support for Clang 5.0.1 (PS4 version). -- [Jonathan Dumaresq](https://github.com/dumarjo) implemented an input adapter to read from `FILE*`. -- [kjpus](https://github.com/kjpus) fixed a link in the documentation. -- [Manvendra Singh](https://github.com/manu-chroma) fixed a typo in the documentation. -- [ziggurat29](https://github.com/ziggurat29) fixed an MSVC warning. -- [Sylvain Corlay](https://github.com/SylvainCorlay) added code to avoid an issue with MSVC. -- [mefyl](https://github.com/mefyl) fixed a bug when JSON was parsed from an input stream. -- [Millian Poquet](https://github.com/mpoquet) allowed to install the library via Meson. -- [Michael Behrns-Miller](https://github.com/moodboom) found an issue with a missing namespace. -- [Nasztanovics Ferenc](https://github.com/naszta) fixed a compilation issue with libc 2.12. -- [Andreas Schwab](https://github.com/andreas-schwab) fixed the endian conversion. -- [Mark-Dunning](https://github.com/Mark-Dunning) fixed a warning in MSVC. -- [Gareth Sylvester-Bradley](https://github.com/garethsb-sony) added `operator/` for JSON Pointers. -- [John-Mark](https://github.com/johnmarkwayve) noted a missing header. -- [Vitaly Zaitsev](https://github.com/xvitaly) fixed compilation with GCC 9.0. -- [Laurent Stacul](https://github.com/stac47) fixed compilation with GCC 9.0. -- [Ivor Wanders](https://github.com/iwanders) helped reducing the CMake requirement to version 3.1. -- [njlr](https://github.com/njlr) updated the Buckaroo instructions. -- [Lion](https://github.com/lieff) fixed a compilation issue with GCC 7 on CentOS. -- [Isaac Nickaein](https://github.com/nickaein) improved the integer serialization performance and implemented the `contains()` function. -- [past-due](https://github.com/past-due) suppressed an unfixable warning. -- [Elvis Oric](https://github.com/elvisoric) improved Meson support. -- [Matěj Plch](https://github.com/Afforix) fixed an example in the README. -- [Mark Beckwith](https://github.com/wythe) fixed a typo. -- [scinart](https://github.com/scinart) fixed bug in the serializer. -- [Patrick Boettcher](https://github.com/pboettch) implemented `push_back()` and `pop_back()` for JSON Pointers. -- [Bruno Oliveira](https://github.com/nicoddemus) added support for Conda. -- [Michele Caini](https://github.com/skypjack) fixed links in the README. -- [Hani](https://github.com/hnkb) documented how to install the library with NuGet. -- [Mark Beckwith](https://github.com/wythe) fixed a typo. -- [yann-morin-1998](https://github.com/yann-morin-1998) helped reducing the CMake requirement to version 3.1. -- [Konstantin Podsvirov](https://github.com/podsvirov) maintains a package for the MSYS2 software distro. -- [remyabel](https://github.com/remyabel) added GNUInstallDirs to the CMake files. -- [Taylor Howard](https://github.com/taylorhoward92) fixed a unit test. -- [Gabe Ron](https://github.com/Macr0Nerd) implemented the `to_string` method. -- [Watal M. Iwasaki](https://github.com/heavywatal) fixed a Clang warning. -- [Viktor Kirilov](https://github.com/onqtam) switched the unit tests from [Catch](https://github.com/philsquared/Catch) to [doctest](https://github.com/onqtam/doctest) -- [Juncheng E](https://github.com/ejcjason) fixed a typo. -- [tete17](https://github.com/tete17) fixed a bug in the `contains` function. -- [Xav83](https://github.com/Xav83) fixed some cppcheck warnings. -- [0xflotus](https://github.com/0xflotus) fixed some typos. -- [Christian Deneke](https://github.com/chris0x44) added a const version of `json_pointer::back`. -- [Julien Hamaide](https://github.com/crazyjul) made the `items()` function work with custom string types. -- [Evan Nemerson](https://github.com/nemequ) updated fixed a bug in Hedley and updated this library accordingly. -- [Florian Pigorsch](https://github.com/flopp) fixed a lot of typos. -- [Camille Bégué](https://github.com/cbegue) fixed an issue in the conversion from `std::pair` and `std::tuple` to `json`. -- [Anthony VH](https://github.com/AnthonyVH) fixed a compile error in an enum deserialization. -- [Yuriy Vountesmery](https://github.com/ua-code-dragon) noted a subtle bug in a preprocessor check. -- [Chen](https://github.com/dota17) fixed numerous issues in the library. -- [Antony Kellermann](https://github.com/aokellermann) added a CI step for GCC 10.1. -- [Alex](https://github.com/gistrec) fixed an MSVC warning. -- [Rainer](https://github.com/rvjr) proposed an improvement in the floating-point serialization in CBOR. -- [Francois Chabot](https://github.com/FrancoisChabot) made performance improvements in the input adapters. -- [Arthur Sonzogni](https://github.com/ArthurSonzogni) documented how the library can be included via `FetchContent`. -- [Rimas Misevičius](https://github.com/rmisev) fixed an error message. -- [Alexander Myasnikov](https://github.com/alexandermyasnikov) fixed some examples and a link in the README. -- [Hubert Chathi](https://github.com/uhoreg) made CMake's version config file architecture-independent. -- [OmnipotentEntity](https://github.com/OmnipotentEntity) implemented the binary values for CBOR, MessagePack, BSON, and UBJSON. -- [ArtemSarmini](https://github.com/ArtemSarmini) fixed a compilation issue with GCC 10 and fixed a leak. -- [Evgenii Sopov](https://github.com/sea-kg) integrated the library to the wsjcpp package manager. -- [Sergey Linev](https://github.com/linev) fixed a compiler warning. -- [Miguel Magalhães](https://github.com/magamig) fixed the year in the copyright. -- [Gareth Sylvester-Bradley](https://github.com/garethsb-sony) fixed a compilation issue with MSVC. -- [Alexander “weej” Jones](https://github.com/alex-weej) fixed an example in the README. -- [Antoine Cœur](https://github.com/Coeur) fixed some typos in the documentation. -- [jothepro](https://github.com/jothepro) updated links to the Hunter package. -- [Dave Lee](https://github.com/kastiglione) fixed link in the README. -- [Joël Lamotte](https://github.com/Klaim) added instruction for using Build2's package manager. -- [Paul Jurczak](https://github.com/pauljurczak) fixed an example in the README. -- [Sonu Lohani](https://github.com/sonulohani) fixed a warning. -- [Carlos Gomes Martinho](https://github.com/gocarlos) updated the Conan package source. -- [Konstantin Podsvirov](https://github.com/podsvirov) fixed the MSYS2 package documentation. -- [Tridacnid](https://github.com/Tridacnid) improved the CMake tests. -- [Michael](https://github.com/MBalszun) fixed MSVC warnings. -- [Quentin Barbarat](https://github.com/quentin-dev) fixed an example in the documentation. -- [XyFreak](https://github.com/XyFreak) fixed a compiler warning. -- [TotalCaesar659](https://github.com/TotalCaesar659) fixed links in the README. -- [Tanuj Garg](https://github.com/tanuj208) improved the fuzzer coverage for UBSAN input. -- [AODQ](https://github.com/AODQ) fixed a compiler warning. -- [jwittbrodt](https://github.com/jwittbrodt) made `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE` inline. -- [pfeatherstone](https://github.com/pfeatherstone) improved the upper bound of arguments of the `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`/`NLOHMANN_DEFINE_TYPE_INTRUSIVE` macros. -- [Jan Procházka](https://github.com/jprochazk) fixed a bug in the CBOR parser for binary and string values. -- [T0b1-iOS](https://github.com/T0b1-iOS) fixed a bug in the new hash implementation. -- [Matthew Bauer](https://github.com/matthewbauer) adjusted the CBOR writer to create tags for binary subtypes. -- [gatopeich](https://github.com/gatopeich) implemented an ordered map container for `nlohmann::ordered_json`. -- [Érico Nogueira Rolim](https://github.com/ericonr) added support for pkg-config. -- [KonanM](https://github.com/KonanM) proposed an implementation for the `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`/`NLOHMANN_DEFINE_TYPE_INTRUSIVE` macros. -- [Guillaume Racicot](https://github.com/gracicot) implemented `string_view` support and allowed C++20 support. -- [Alex Reinking](https://github.com/alexreinking) improved CMake support for `FetchContent`. -- [Hannes Domani](https://github.com/ssbssa) provided a GDB pretty printer. -- Lars Wirzenius reviewed the README file. -- [Jun Jie](https://github.com/ongjunjie) fixed a compiler path in the CMake scripts. -- [Ronak Buch](https://github.com/rbuch) fixed typos in the documentation. -- [Alexander Karzhenkov](https://github.com/karzhenkov) fixed a move constructor and the Travis builds. -- [Leonardo Lima](https://github.com/leozz37) added CPM.Cmake support. -- [Joseph Blackman](https://github.com/jbzdarkid) fixed a warning. -- [Yaroslav](https://github.com/YarikTH) updated doctest and implemented unit tests. -- [Martin Stump](https://github.com/globberwops) fixed a bug in the CMake files. -- [Jaakko Moisio](https://github.com/jasujm) fixed a bug in the input adapters. -- [bl-ue](https://github.com/bl-ue) fixed some Markdown issues in the README file. -- [William A. Wieselquist](https://github.com/wawiesel) fixed an example from the README. -- [abbaswasim](https://github.com/abbaswasim) fixed an example from the README. -- [Remy Jette](https://github.com/remyjette) fixed a warning. -- [Fraser](https://github.com/frasermarlow) fixed the documentation. -- [Ben Beasley](https://github.com/musicinmybrain) updated doctest. -- [Doron Behar](https://github.com/doronbehar) fixed pkg-config.pc. -- [raduteo](https://github.com/raduteo) fixed a warning. -- [David Pfahler](https://github.com/theShmoo) added the possibility to compile the library without I/O support. -- [Morten Fyhn Amundsen](https://github.com/mortenfyhn) fixed a typo. -- [jpl-mac](https://github.com/jpl-mac) allowed to treat the library as a system header in CMake. -- [Jason Dsouza](https://github.com/jasmcaus) fixed the indentation of the CMake file. -- [offa](https://github.com/offa) added a link to Conan Center to the documentation. -- [TotalCaesar659](https://github.com/TotalCaesar659) updated the links in the documentation to use HTTPS. -- [Rafail Giavrimis](https://github.com/grafail) fixed the Google Benchmark default branch. -- [Louis Dionne](https://github.com/ldionne) fixed a conversion operator. -- [justanotheranonymoususer](https://github.com/justanotheranonymoususer) made the examples in the README more consistent. -- [Finkman](https://github.com/Finkman) suppressed some `-Wfloat-equal` warnings. -- [Ferry Huberts](https://github.com/fhuberts) fixed `-Wswitch-enum` warnings. - -Thanks a lot for helping out! Please [let me know](mailto:mail@nlohmann.me) if I forgot someone. - - -## Used third-party tools - -The library itself consists of a single header file licensed under the MIT license. However, it is built, tested, documented, and whatnot using a lot of third-party tools and services. Thanks a lot! - -- [**amalgamate.py - Amalgamate C source and header files**](https://github.com/edlund/amalgamate) to create a single header file -- [**American fuzzy lop**](https://lcamtuf.coredump.cx/afl/) for fuzz testing -- [**AppVeyor**](https://www.appveyor.com) for [continuous integration](https://ci.appveyor.com/project/nlohmann/json) on Windows -- [**Artistic Style**](http://astyle.sourceforge.net) for automatic source code indentation -- [**Clang**](https://clang.llvm.org) for compilation with code sanitizers -- [**CMake**](https://cmake.org) for build automation -- [**Codacity**](https://www.codacy.com) for further [code analysis](https://www.codacy.com/app/nlohmann/json) -- [**Coveralls**](https://coveralls.io) to measure [code coverage](https://coveralls.io/github/nlohmann/json) -- [**Coverity Scan**](https://scan.coverity.com) for [static analysis](https://scan.coverity.com/projects/nlohmann-json) -- [**cppcheck**](http://cppcheck.sourceforge.net) for static analysis -- [**doctest**](https://github.com/onqtam/doctest) for the unit tests -- [**Doxygen**](https://www.doxygen.nl/index.html) to generate [documentation](https://nlohmann.github.io/json/doxygen/index.html) -- [**git-update-ghpages**](https://github.com/rstacruz/git-update-ghpages) to upload the documentation to gh-pages -- [**GitHub Changelog Generator**](https://github.com/skywinder/github-changelog-generator) to generate the [ChangeLog](https://github.com/nlohmann/json/blob/develop/ChangeLog.md) -- [**Google Benchmark**](https://github.com/google/benchmark) to implement the benchmarks -- [**Hedley**](https://nemequ.github.io/hedley/) to avoid re-inventing several compiler-agnostic feature macros -- [**lcov**](http://ltp.sourceforge.net/coverage/lcov.php) to process coverage information and create a HTML view -- [**libFuzzer**](https://llvm.org/docs/LibFuzzer.html) to implement fuzz testing for OSS-Fuzz -- [**OSS-Fuzz**](https://github.com/google/oss-fuzz) for continuous fuzz testing of the library ([project repository](https://github.com/google/oss-fuzz/tree/master/projects/json)) -- [**Probot**](https://probot.github.io) for automating maintainer tasks such as closing stale issues, requesting missing information, or detecting toxic comments. -- [**send_to_wandbox**](https://github.com/nlohmann/json/blob/develop/doc/scripts/send_to_wandbox.py) to send code examples to [Wandbox](https://wandbox.org) -- [**Travis**](https://travis-ci.org) for [continuous integration](https://travis-ci.org/nlohmann/json) on Linux and macOS -- [**Valgrind**](https://valgrind.org) to check for correct memory management -- [**Wandbox**](https://wandbox.org) for [online examples](https://wandbox.org/permlink/3lCHrFUZANONKv7a) - - -## Projects using JSON for Modern C++ - -The library is currently used in Apple macOS Sierra and iOS 10. I am not sure what they are using the library for, but I am happy that it runs on so many devices. - - -## Notes - -### Character encoding - -The library supports **Unicode input** as follows: - -- Only **UTF-8** encoded input is supported which is the default encoding for JSON according to [RFC 8259](https://tools.ietf.org/html/rfc8259.html#section-8.1). -- `std::u16string` and `std::u32string` can be parsed, assuming UTF-16 and UTF-32 encoding, respectively. These encodings are not supported when reading from files or other input containers. -- Other encodings such as Latin-1 or ISO 8859-1 are **not** supported and will yield parse or serialization errors. -- [Unicode noncharacters](https://www.unicode.org/faq/private_use.html#nonchar1) will not be replaced by the library. -- Invalid surrogates (e.g., incomplete pairs such as `\uDEAD`) will yield parse errors. -- The strings stored in the library are UTF-8 encoded. When using the default string type (`std::string`), note that its length/size functions return the number of stored bytes rather than the number of characters or glyphs. -- When you store strings with different encodings in the library, calling [`dump()`](https://nlohmann.github.io/json/api/basic_json/dump/) may throw an exception unless `json::error_handler_t::replace` or `json::error_handler_t::ignore` are used as error handlers. -- To store wide strings (e.g., `std::wstring`), you need to convert them to a a UTF-8 encoded `std::string` before, see [an example](https://json.nlohmann.me/home/faq/#wide-string-handling). - -### Comments in JSON - -This library does not support comments by default. It does so for three reasons: - -1. Comments are not part of the [JSON specification](https://tools.ietf.org/html/rfc8259). You may argue that `//` or `/* */` are allowed in JavaScript, but JSON is not JavaScript. -2. This was not an oversight: Douglas Crockford [wrote on this](https://plus.google.com/118095276221607585885/posts/RK8qyGVaGSr) in May 2012: - - > I removed comments from JSON because I saw people were using them to hold parsing directives, a practice which would have destroyed interoperability. I know that the lack of comments makes some people sad, but it shouldn't. - - > Suppose you are using JSON to keep configuration files, which you would like to annotate. Go ahead and insert all the comments you like. Then pipe it through JSMin before handing it to your JSON parser. - -3. It is dangerous for interoperability if some libraries would add comment support while others don't. Please check [The Harmful Consequences of the Robustness Principle](https://tools.ietf.org/html/draft-iab-protocol-maintenance-01) on this. - -However, you can pass set parameter `ignore_comments` to true in the `parse` function to ignore `//` or `/* */` comments. Comments will then be treated as whitespace. - -### Order of object keys - -By default, the library does not preserve the **insertion order of object elements**. This is standards-compliant, as the [JSON standard](https://tools.ietf.org/html/rfc8259.html) defines objects as "an unordered collection of zero or more name/value pairs". - -If you do want to preserve the insertion order, you can try the type [`nlohmann::ordered_json`](https://github.com/nlohmann/json/issues/2179). Alternatively, you can use a more sophisticated ordered map like [`tsl::ordered_map`](https://github.com/Tessil/ordered-map) ([integration](https://github.com/nlohmann/json/issues/546#issuecomment-304447518)) or [`nlohmann::fifo_map`](https://github.com/nlohmann/fifo_map) ([integration](https://github.com/nlohmann/json/issues/485#issuecomment-333652309)). - -### Memory Release - -We checked with Valgrind and the Address Sanitizer (ASAN) that there are no memory leaks. - -If you find that a parsing program with this library does not release memory, please consider the following case and it maybe unrelated to this library. - -**Your program is compiled with glibc.** There is a tunable threshold that glibc uses to decide whether to actually return memory to the system or whether to cache it for later reuse. If in your program you make lots of small allocations and those small allocations are not a contiguous block and are presumably below the threshold, then they will not get returned to the OS. -Here is a related issue [#1924](https://github.com/nlohmann/json/issues/1924). - -### Further notes - -- The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](https://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/api/basic_json/operator%5B%5D/) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/api/basic_json/at/). Furthermore, you can define `JSON_ASSERT(x)` to replace calls to `assert(x)`. -- As the exact type of a number is not defined in the [JSON specification](https://tools.ietf.org/html/rfc8259.html), this library tries to choose the best fitting C++ number type automatically. As a result, the type `double` may be used to store numbers which may yield [**floating-point exceptions**](https://github.com/nlohmann/json/issues/181) in certain rare situations if floating-point exceptions have been unmasked in the calling code. These exceptions are not caused by the library and need to be fixed in the calling code, such as by re-masking the exceptions prior to calling library functions. -- The code can be compiled without C++ **runtime type identification** features; that is, you can use the `-fno-rtti` compiler flag. -- **Exceptions** are used widely within the library. They can, however, be switched off with either using the compiler flag `-fno-exceptions` or by defining the symbol `JSON_NOEXCEPTION`. In this case, exceptions are replaced by `abort()` calls. You can further control this behavior by defining `JSON_THROW_USER` (overriding `throw`), `JSON_TRY_USER` (overriding `try`), and `JSON_CATCH_USER` (overriding `catch`). Note that `JSON_THROW_USER` should leave the current scope (e.g., by throwing or aborting), as continuing after it may yield undefined behavior. Note the explanatory [`what()`](https://en.cppreference.com/w/cpp/error/exception/what) string of exceptions is not available for MSVC if exceptions are disabled, see [#2824](https://github.com/nlohmann/json/discussions/2824). - -## Execute unit tests - -To compile and run the tests, you need to execute - -```sh -$ mkdir build -$ cd build -$ cmake .. -DJSON_BuildTests=On -$ cmake --build . -$ ctest --output-on-failure -``` - -Note that during the `ctest` stage, several JSON test files are downloaded from an [external repository](https://github.com/nlohmann/json_test_data). If policies forbid downloading artifacts during testing, you can download the files yourself and pass the directory with the test files via `-DJSON_TestDataDirectory=path` to CMake. Then, no Internet connectivity is required. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information. - -In case you have downloaded the library rather than checked out the code via Git, test `cmake_fetch_content_configure` will fail. Please execute `ctest -LE git_required` to skip these tests. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information. - -Some tests change the installed files and hence make the whole process not reproducible. Please execute `ctest -LE not_reproducible` to skip these tests. See [issue #2324](https://github.com/nlohmann/json/issues/2324) for more information. - -Note you need to call `cmake -LE "not_reproducible|git_required"` to exclude both labels. See [issue #2596](https://github.com/nlohmann/json/issues/2596) for more information. - -As Intel compilers use unsafe floating point optimization by default, the unit tests may fail. Use flag [`/fp:precise`](https://software.intel.com/content/www/us/en/develop/documentation/cpp-compiler-developer-guide-and-reference/top/compiler-reference/compiler-options/compiler-option-details/floating-point-options/fp-model-fp.html) then. diff --git a/extern/json/nlohmann/json.hpp b/extern/json/nlohmann/json.hpp deleted file mode 100644 index bd1dc6a..0000000 --- a/extern/json/nlohmann/json.hpp +++ /dev/null @@ -1,26601 +0,0 @@ -/* - __ _____ _____ _____ - __| | __| | | | JSON for Modern C++ -| | |__ | | | | | | version 3.10.0 -|_____|_____|_____|_|___| https://github.com/nlohmann/json - -Licensed under the MIT License . -SPDX-License-Identifier: MIT -Copyright (c) 2013-2019 Niels Lohmann . - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -*/ - -#ifndef INCLUDE_NLOHMANN_JSON_HPP_ -#define INCLUDE_NLOHMANN_JSON_HPP_ - -#define NLOHMANN_JSON_VERSION_MAJOR 3 -#define NLOHMANN_JSON_VERSION_MINOR 10 -#define NLOHMANN_JSON_VERSION_PATCH 0 - -#include // all_of, find, for_each -#include // nullptr_t, ptrdiff_t, size_t -#include // hash, less -#include // initializer_list -#ifndef JSON_NO_IO - #include // istream, ostream -#endif // JSON_NO_IO -#include // random_access_iterator_tag -#include // unique_ptr -#include // accumulate -#include // string, stoi, to_string -#include // declval, forward, move, pair, swap -#include // vector - -// #include - - -#include -#include - -// #include - - -#include // transform -#include // array -#include // forward_list -#include // inserter, front_inserter, end -#include // map -#include // string -#include // tuple, make_tuple -#include // is_arithmetic, is_same, is_enum, underlying_type, is_convertible -#include // unordered_map -#include // pair, declval -#include // valarray - -// #include - - -#include // exception -#include // runtime_error -#include // to_string -#include // vector - -// #include - - -#include // array -#include // size_t -#include // uint8_t -#include // string - -namespace nlohmann -{ -namespace detail -{ -/////////////////////////// -// JSON type enumeration // -/////////////////////////// - -/*! -@brief the JSON type enumeration - -This enumeration collects the different JSON types. It is internally used to -distinguish the stored values, and the functions @ref basic_json::is_null(), -@ref basic_json::is_object(), @ref basic_json::is_array(), -@ref basic_json::is_string(), @ref basic_json::is_boolean(), -@ref basic_json::is_number() (with @ref basic_json::is_number_integer(), -@ref basic_json::is_number_unsigned(), and @ref basic_json::is_number_float()), -@ref basic_json::is_discarded(), @ref basic_json::is_primitive(), and -@ref basic_json::is_structured() rely on it. - -@note There are three enumeration entries (number_integer, number_unsigned, and -number_float), because the library distinguishes these three types for numbers: -@ref basic_json::number_unsigned_t is used for unsigned integers, -@ref basic_json::number_integer_t is used for signed integers, and -@ref basic_json::number_float_t is used for floating-point numbers or to -approximate integers which do not fit in the limits of their respective type. - -@sa see @ref basic_json::basic_json(const value_t value_type) -- create a JSON -value with the default value for a given type - -@since version 1.0.0 -*/ -enum class value_t : std::uint8_t -{ - null, ///< null value - object, ///< object (unordered set of name/value pairs) - array, ///< array (ordered collection of values) - string, ///< string value - boolean, ///< boolean value - number_integer, ///< number value (signed integer) - number_unsigned, ///< number value (unsigned integer) - number_float, ///< number value (floating-point) - binary, ///< binary array (ordered collection of bytes) - discarded ///< discarded by the parser callback function -}; - -/*! -@brief comparison operator for JSON types - -Returns an ordering that is similar to Python: -- order: null < boolean < number < object < array < string < binary -- furthermore, each type is not smaller than itself -- discarded values are not comparable -- binary is represented as a b"" string in python and directly comparable to a - string; however, making a binary array directly comparable with a string would - be surprising behavior in a JSON file. - -@since version 1.0.0 -*/ -inline bool operator<(const value_t lhs, const value_t rhs) noexcept -{ - static constexpr std::array order = {{ - 0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */, - 1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */, - 6 /* binary */ - } - }; - - const auto l_index = static_cast(lhs); - const auto r_index = static_cast(rhs); - return l_index < order.size() && r_index < order.size() && order[l_index] < order[r_index]; -} -} // namespace detail -} // namespace nlohmann - -// #include - - -#include -// #include - - -#include // pair -// #include - - -/* Hedley - https://nemequ.github.io/hedley - * Created by Evan Nemerson - * - * To the extent possible under law, the author(s) have dedicated all - * copyright and related and neighboring rights to this software to - * the public domain worldwide. This software is distributed without - * any warranty. - * - * For details, see . - * SPDX-License-Identifier: CC0-1.0 - */ - -#if !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < 15) -#if defined(JSON_HEDLEY_VERSION) - #undef JSON_HEDLEY_VERSION -#endif -#define JSON_HEDLEY_VERSION 15 - -#if defined(JSON_HEDLEY_STRINGIFY_EX) - #undef JSON_HEDLEY_STRINGIFY_EX -#endif -#define JSON_HEDLEY_STRINGIFY_EX(x) #x - -#if defined(JSON_HEDLEY_STRINGIFY) - #undef JSON_HEDLEY_STRINGIFY -#endif -#define JSON_HEDLEY_STRINGIFY(x) JSON_HEDLEY_STRINGIFY_EX(x) - -#if defined(JSON_HEDLEY_CONCAT_EX) - #undef JSON_HEDLEY_CONCAT_EX -#endif -#define JSON_HEDLEY_CONCAT_EX(a,b) a##b - -#if defined(JSON_HEDLEY_CONCAT) - #undef JSON_HEDLEY_CONCAT -#endif -#define JSON_HEDLEY_CONCAT(a,b) JSON_HEDLEY_CONCAT_EX(a,b) - -#if defined(JSON_HEDLEY_CONCAT3_EX) - #undef JSON_HEDLEY_CONCAT3_EX -#endif -#define JSON_HEDLEY_CONCAT3_EX(a,b,c) a##b##c - -#if defined(JSON_HEDLEY_CONCAT3) - #undef JSON_HEDLEY_CONCAT3 -#endif -#define JSON_HEDLEY_CONCAT3(a,b,c) JSON_HEDLEY_CONCAT3_EX(a,b,c) - -#if defined(JSON_HEDLEY_VERSION_ENCODE) - #undef JSON_HEDLEY_VERSION_ENCODE -#endif -#define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision)) - -#if defined(JSON_HEDLEY_VERSION_DECODE_MAJOR) - #undef JSON_HEDLEY_VERSION_DECODE_MAJOR -#endif -#define JSON_HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000) - -#if defined(JSON_HEDLEY_VERSION_DECODE_MINOR) - #undef JSON_HEDLEY_VERSION_DECODE_MINOR -#endif -#define JSON_HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000) - -#if defined(JSON_HEDLEY_VERSION_DECODE_REVISION) - #undef JSON_HEDLEY_VERSION_DECODE_REVISION -#endif -#define JSON_HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000) - -#if defined(JSON_HEDLEY_GNUC_VERSION) - #undef JSON_HEDLEY_GNUC_VERSION -#endif -#if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__) - #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) -#elif defined(__GNUC__) - #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0) -#endif - -#if defined(JSON_HEDLEY_GNUC_VERSION_CHECK) - #undef JSON_HEDLEY_GNUC_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_GNUC_VERSION) - #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_MSVC_VERSION) - #undef JSON_HEDLEY_MSVC_VERSION -#endif -#if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000) && !defined(__ICL) - #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100) -#elif defined(_MSC_FULL_VER) && !defined(__ICL) - #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10) -#elif defined(_MSC_VER) && !defined(__ICL) - #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0) -#endif - -#if defined(JSON_HEDLEY_MSVC_VERSION_CHECK) - #undef JSON_HEDLEY_MSVC_VERSION_CHECK -#endif -#if !defined(JSON_HEDLEY_MSVC_VERSION) - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (0) -#elif defined(_MSC_VER) && (_MSC_VER >= 1400) - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch))) -#elif defined(_MSC_VER) && (_MSC_VER >= 1200) - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch))) -#else - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor))) -#endif - -#if defined(JSON_HEDLEY_INTEL_VERSION) - #undef JSON_HEDLEY_INTEL_VERSION -#endif -#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && !defined(__ICL) - #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE) -#elif defined(__INTEL_COMPILER) && !defined(__ICL) - #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0) -#endif - -#if defined(JSON_HEDLEY_INTEL_VERSION_CHECK) - #undef JSON_HEDLEY_INTEL_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_INTEL_VERSION) - #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_INTEL_CL_VERSION) - #undef JSON_HEDLEY_INTEL_CL_VERSION -#endif -#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && defined(__ICL) - #define JSON_HEDLEY_INTEL_CL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER, __INTEL_COMPILER_UPDATE, 0) -#endif - -#if defined(JSON_HEDLEY_INTEL_CL_VERSION_CHECK) - #undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_INTEL_CL_VERSION) - #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_CL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_PGI_VERSION) - #undef JSON_HEDLEY_PGI_VERSION -#endif -#if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__) - #define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__) -#endif - -#if defined(JSON_HEDLEY_PGI_VERSION_CHECK) - #undef JSON_HEDLEY_PGI_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_PGI_VERSION) - #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_SUNPRO_VERSION) - #undef JSON_HEDLEY_SUNPRO_VERSION -#endif -#if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10) -#elif defined(__SUNPRO_C) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C) & 0xf) -#elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10) -#elif defined(__SUNPRO_CC) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC) & 0xf) -#endif - -#if defined(JSON_HEDLEY_SUNPRO_VERSION_CHECK) - #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_SUNPRO_VERSION) - #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) - #undef JSON_HEDLEY_EMSCRIPTEN_VERSION -#endif -#if defined(__EMSCRIPTEN__) - #define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__) -#endif - -#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK) - #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) - #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_ARM_VERSION) - #undef JSON_HEDLEY_ARM_VERSION -#endif -#if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION) - #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100) -#elif defined(__CC_ARM) && defined(__ARMCC_VERSION) - #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100) -#endif - -#if defined(JSON_HEDLEY_ARM_VERSION_CHECK) - #undef JSON_HEDLEY_ARM_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_ARM_VERSION) - #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_IBM_VERSION) - #undef JSON_HEDLEY_IBM_VERSION -#endif -#if defined(__ibmxl__) - #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__) -#elif defined(__xlC__) && defined(__xlC_ver__) - #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff) -#elif defined(__xlC__) - #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0) -#endif - -#if defined(JSON_HEDLEY_IBM_VERSION_CHECK) - #undef JSON_HEDLEY_IBM_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_IBM_VERSION) - #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_VERSION) - #undef JSON_HEDLEY_TI_VERSION -#endif -#if \ - defined(__TI_COMPILER_VERSION__) && \ - ( \ - defined(__TMS470__) || defined(__TI_ARM__) || \ - defined(__MSP430__) || \ - defined(__TMS320C2000__) \ - ) -#if (__TI_COMPILER_VERSION__ >= 16000000) - #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif -#endif - -#if defined(JSON_HEDLEY_TI_VERSION_CHECK) - #undef JSON_HEDLEY_TI_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_VERSION) - #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_CL2000_VERSION) - #undef JSON_HEDLEY_TI_CL2000_VERSION -#endif -#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C2000__) - #define JSON_HEDLEY_TI_CL2000_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif - -#if defined(JSON_HEDLEY_TI_CL2000_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_CL2000_VERSION) - #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL2000_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_CL430_VERSION) - #undef JSON_HEDLEY_TI_CL430_VERSION -#endif -#if defined(__TI_COMPILER_VERSION__) && defined(__MSP430__) - #define JSON_HEDLEY_TI_CL430_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif - -#if defined(JSON_HEDLEY_TI_CL430_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL430_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_CL430_VERSION) - #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_ARMCL_VERSION) - #undef JSON_HEDLEY_TI_ARMCL_VERSION -#endif -#if defined(__TI_COMPILER_VERSION__) && (defined(__TMS470__) || defined(__TI_ARM__)) - #define JSON_HEDLEY_TI_ARMCL_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif - -#if defined(JSON_HEDLEY_TI_ARMCL_VERSION_CHECK) - #undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_ARMCL_VERSION) - #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_ARMCL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_CL6X_VERSION) - #undef JSON_HEDLEY_TI_CL6X_VERSION -#endif -#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C6X__) - #define JSON_HEDLEY_TI_CL6X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif - -#if defined(JSON_HEDLEY_TI_CL6X_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_CL6X_VERSION) - #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL6X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_CL7X_VERSION) - #undef JSON_HEDLEY_TI_CL7X_VERSION -#endif -#if defined(__TI_COMPILER_VERSION__) && defined(__C7000__) - #define JSON_HEDLEY_TI_CL7X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif - -#if defined(JSON_HEDLEY_TI_CL7X_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_CL7X_VERSION) - #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL7X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TI_CLPRU_VERSION) - #undef JSON_HEDLEY_TI_CLPRU_VERSION -#endif -#if defined(__TI_COMPILER_VERSION__) && defined(__PRU__) - #define JSON_HEDLEY_TI_CLPRU_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) -#endif - -#if defined(JSON_HEDLEY_TI_CLPRU_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TI_CLPRU_VERSION) - #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CLPRU_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_CRAY_VERSION) - #undef JSON_HEDLEY_CRAY_VERSION -#endif -#if defined(_CRAYC) - #if defined(_RELEASE_PATCHLEVEL) - #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL) - #else - #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0) - #endif -#endif - -#if defined(JSON_HEDLEY_CRAY_VERSION_CHECK) - #undef JSON_HEDLEY_CRAY_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_CRAY_VERSION) - #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_IAR_VERSION) - #undef JSON_HEDLEY_IAR_VERSION -#endif -#if defined(__IAR_SYSTEMS_ICC__) - #if __VER__ > 1000 - #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000)) - #else - #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(__VER__ / 100, __VER__ % 100, 0) - #endif -#endif - -#if defined(JSON_HEDLEY_IAR_VERSION_CHECK) - #undef JSON_HEDLEY_IAR_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_IAR_VERSION) - #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_TINYC_VERSION) - #undef JSON_HEDLEY_TINYC_VERSION -#endif -#if defined(__TINYC__) - #define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100) -#endif - -#if defined(JSON_HEDLEY_TINYC_VERSION_CHECK) - #undef JSON_HEDLEY_TINYC_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_TINYC_VERSION) - #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_DMC_VERSION) - #undef JSON_HEDLEY_DMC_VERSION -#endif -#if defined(__DMC__) - #define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf) -#endif - -#if defined(JSON_HEDLEY_DMC_VERSION_CHECK) - #undef JSON_HEDLEY_DMC_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_DMC_VERSION) - #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_COMPCERT_VERSION) - #undef JSON_HEDLEY_COMPCERT_VERSION -#endif -#if defined(__COMPCERT_VERSION__) - #define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100) -#endif - -#if defined(JSON_HEDLEY_COMPCERT_VERSION_CHECK) - #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_COMPCERT_VERSION) - #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_PELLES_VERSION) - #undef JSON_HEDLEY_PELLES_VERSION -#endif -#if defined(__POCC__) - #define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0) -#endif - -#if defined(JSON_HEDLEY_PELLES_VERSION_CHECK) - #undef JSON_HEDLEY_PELLES_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_PELLES_VERSION) - #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_MCST_LCC_VERSION) - #undef JSON_HEDLEY_MCST_LCC_VERSION -#endif -#if defined(__LCC__) && defined(__LCC_MINOR__) - #define JSON_HEDLEY_MCST_LCC_VERSION JSON_HEDLEY_VERSION_ENCODE(__LCC__ / 100, __LCC__ % 100, __LCC_MINOR__) -#endif - -#if defined(JSON_HEDLEY_MCST_LCC_VERSION_CHECK) - #undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_MCST_LCC_VERSION) - #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_MCST_LCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_GCC_VERSION) - #undef JSON_HEDLEY_GCC_VERSION -#endif -#if \ - defined(JSON_HEDLEY_GNUC_VERSION) && \ - !defined(__clang__) && \ - !defined(JSON_HEDLEY_INTEL_VERSION) && \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_ARM_VERSION) && \ - !defined(JSON_HEDLEY_CRAY_VERSION) && \ - !defined(JSON_HEDLEY_TI_VERSION) && \ - !defined(JSON_HEDLEY_TI_ARMCL_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL430_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL2000_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL6X_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL7X_VERSION) && \ - !defined(JSON_HEDLEY_TI_CLPRU_VERSION) && \ - !defined(__COMPCERT__) && \ - !defined(JSON_HEDLEY_MCST_LCC_VERSION) - #define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION -#endif - -#if defined(JSON_HEDLEY_GCC_VERSION_CHECK) - #undef JSON_HEDLEY_GCC_VERSION_CHECK -#endif -#if defined(JSON_HEDLEY_GCC_VERSION) - #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) -#else - #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (0) -#endif - -#if defined(JSON_HEDLEY_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_HAS_ATTRIBUTE -#endif -#if \ - defined(__has_attribute) && \ - ( \ - (!defined(JSON_HEDLEY_IAR_VERSION) || JSON_HEDLEY_IAR_VERSION_CHECK(8,5,9)) \ - ) -# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute) -#else -# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE -#endif -#if defined(__has_attribute) - #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) -#else - #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE -#endif -#if defined(__has_attribute) - #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) -#else - #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE -#endif -#if \ - defined(__has_cpp_attribute) && \ - defined(__cplusplus) && \ - (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute) -#else - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0) -#endif - -#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS) - #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS -#endif -#if !defined(__cplusplus) || !defined(__has_cpp_attribute) - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) -#elif \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_IAR_VERSION) && \ - (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) && \ - (!defined(JSON_HEDLEY_MSVC_VERSION) || JSON_HEDLEY_MSVC_VERSION_CHECK(19,20,0)) - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(ns::attribute) -#else - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE -#endif -#if defined(__has_cpp_attribute) && defined(__cplusplus) - #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) -#else - #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE -#endif -#if defined(__has_cpp_attribute) && defined(__cplusplus) - #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) -#else - #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_HAS_BUILTIN) - #undef JSON_HEDLEY_HAS_BUILTIN -#endif -#if defined(__has_builtin) - #define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin) -#else - #define JSON_HEDLEY_HAS_BUILTIN(builtin) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_BUILTIN) - #undef JSON_HEDLEY_GNUC_HAS_BUILTIN -#endif -#if defined(__has_builtin) - #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) -#else - #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_BUILTIN) - #undef JSON_HEDLEY_GCC_HAS_BUILTIN -#endif -#if defined(__has_builtin) - #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) -#else - #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_HAS_FEATURE) - #undef JSON_HEDLEY_HAS_FEATURE -#endif -#if defined(__has_feature) - #define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature) -#else - #define JSON_HEDLEY_HAS_FEATURE(feature) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_FEATURE) - #undef JSON_HEDLEY_GNUC_HAS_FEATURE -#endif -#if defined(__has_feature) - #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) -#else - #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_FEATURE) - #undef JSON_HEDLEY_GCC_HAS_FEATURE -#endif -#if defined(__has_feature) - #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) -#else - #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_HAS_EXTENSION) - #undef JSON_HEDLEY_HAS_EXTENSION -#endif -#if defined(__has_extension) - #define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension) -#else - #define JSON_HEDLEY_HAS_EXTENSION(extension) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_EXTENSION) - #undef JSON_HEDLEY_GNUC_HAS_EXTENSION -#endif -#if defined(__has_extension) - #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) -#else - #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_EXTENSION) - #undef JSON_HEDLEY_GCC_HAS_EXTENSION -#endif -#if defined(__has_extension) - #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) -#else - #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE -#endif -#if defined(__has_declspec_attribute) - #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute) -#else - #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE -#endif -#if defined(__has_declspec_attribute) - #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) -#else - #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE -#endif -#if defined(__has_declspec_attribute) - #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) -#else - #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_HAS_WARNING) - #undef JSON_HEDLEY_HAS_WARNING -#endif -#if defined(__has_warning) - #define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning) -#else - #define JSON_HEDLEY_HAS_WARNING(warning) (0) -#endif - -#if defined(JSON_HEDLEY_GNUC_HAS_WARNING) - #undef JSON_HEDLEY_GNUC_HAS_WARNING -#endif -#if defined(__has_warning) - #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) -#else - #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_GCC_HAS_WARNING) - #undef JSON_HEDLEY_GCC_HAS_WARNING -#endif -#if defined(__has_warning) - #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) -#else - #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if \ - (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ - defined(__clang__) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,17) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(8,0,0) || \ - (JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) && defined(__C99_PRAGMA_OPERATOR)) - #define JSON_HEDLEY_PRAGMA(value) _Pragma(#value) -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) - #define JSON_HEDLEY_PRAGMA(value) __pragma(value) -#else - #define JSON_HEDLEY_PRAGMA(value) -#endif - -#if defined(JSON_HEDLEY_DIAGNOSTIC_PUSH) - #undef JSON_HEDLEY_DIAGNOSTIC_PUSH -#endif -#if defined(JSON_HEDLEY_DIAGNOSTIC_POP) - #undef JSON_HEDLEY_DIAGNOSTIC_POP -#endif -#if defined(__clang__) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push)) - #define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop)) -#elif JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop") -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,4,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop") -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") -#else - #define JSON_HEDLEY_DIAGNOSTIC_PUSH - #define JSON_HEDLEY_DIAGNOSTIC_POP -#endif - -/* JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ is for - HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ -#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ -#endif -#if defined(__cplusplus) -# if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat") -# if JSON_HEDLEY_HAS_WARNING("-Wc++17-extensions") -# if JSON_HEDLEY_HAS_WARNING("-Wc++1z-extensions") -# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ - _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ - _Pragma("clang diagnostic ignored \"-Wc++1z-extensions\"") \ - xpr \ - JSON_HEDLEY_DIAGNOSTIC_POP -# else -# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ - _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ - xpr \ - JSON_HEDLEY_DIAGNOSTIC_POP -# endif -# else -# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ - xpr \ - JSON_HEDLEY_DIAGNOSTIC_POP -# endif -# endif -#endif -#if !defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(x) x -#endif - -#if defined(JSON_HEDLEY_CONST_CAST) - #undef JSON_HEDLEY_CONST_CAST -#endif -#if defined(__cplusplus) -# define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast(expr)) -#elif \ - JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) -# define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__ ({ \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL \ - ((T) (expr)); \ - JSON_HEDLEY_DIAGNOSTIC_POP \ - })) -#else -# define JSON_HEDLEY_CONST_CAST(T, expr) ((T) (expr)) -#endif - -#if defined(JSON_HEDLEY_REINTERPRET_CAST) - #undef JSON_HEDLEY_REINTERPRET_CAST -#endif -#if defined(__cplusplus) - #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast(expr)) -#else - #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) ((T) (expr)) -#endif - -#if defined(JSON_HEDLEY_STATIC_CAST) - #undef JSON_HEDLEY_STATIC_CAST -#endif -#if defined(__cplusplus) - #define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast(expr)) -#else - #define JSON_HEDLEY_STATIC_CAST(T, expr) ((T) (expr)) -#endif - -#if defined(JSON_HEDLEY_CPP_CAST) - #undef JSON_HEDLEY_CPP_CAST -#endif -#if defined(__cplusplus) -# if JSON_HEDLEY_HAS_WARNING("-Wold-style-cast") -# define JSON_HEDLEY_CPP_CAST(T, expr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wold-style-cast\"") \ - ((T) (expr)) \ - JSON_HEDLEY_DIAGNOSTIC_POP -# elif JSON_HEDLEY_IAR_VERSION_CHECK(8,3,0) -# define JSON_HEDLEY_CPP_CAST(T, expr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("diag_suppress=Pe137") \ - JSON_HEDLEY_DIAGNOSTIC_POP -# else -# define JSON_HEDLEY_CPP_CAST(T, expr) ((T) (expr)) -# endif -#else -# define JSON_HEDLEY_CPP_CAST(T, expr) (expr) -#endif - -#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wdeprecated-declarations") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)") -#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:1478 1786)) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1216,1444,1445") -#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996)) -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718") -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && !defined(__cplusplus) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)") -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && defined(__cplusplus) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215") -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)") -#else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED -#endif - -#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)") -#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:161)) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"") -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:4068)) -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(16,9,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") -#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161") -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 161") -#else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS -#endif - -#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wunknown-attributes") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("clang diagnostic ignored \"-Wunknown-attributes\"") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("warning(disable:1292)") -#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:1292)) -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:5030)) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097,1098") -#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("error_messages(off,attrskipunsup)") -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1173") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress=Pe1097") -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") -#else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES -#endif - -#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wcast-qual") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"") -#else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL -#endif - -#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wunused-function") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("clang diagnostic ignored \"-Wunused-function\"") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("GCC diagnostic ignored \"-Wunused-function\"") -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(1,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION __pragma(warning(disable:4505)) -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("diag_suppress 3142") -#else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION -#endif - -#if defined(JSON_HEDLEY_DEPRECATED) - #undef JSON_HEDLEY_DEPRECATED -#endif -#if defined(JSON_HEDLEY_DEPRECATED_FOR) - #undef JSON_HEDLEY_DEPRECATED_FOR -#endif -#if \ - JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since)) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement)) -#elif \ - (JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(18,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since))) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement))) -#elif defined(__cplusplus) && (__cplusplus >= 201402L) - #define JSON_HEDLEY_DEPRECATED(since) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since)]]) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since "; use " #replacement)]]) -#elif \ - JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) - #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__)) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__)) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_PELLES_VERSION_CHECK(6,50,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated) -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated") - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated") -#else - #define JSON_HEDLEY_DEPRECATED(since) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) -#endif - -#if defined(JSON_HEDLEY_UNAVAILABLE) - #undef JSON_HEDLEY_UNAVAILABLE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since))) -#else - #define JSON_HEDLEY_UNAVAILABLE(available_since) -#endif - -#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT) - #undef JSON_HEDLEY_WARN_UNUSED_RESULT -#endif -#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT_MSG) - #undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) __attribute__((__warn_unused_result__)) -#elif (JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) >= 201907L) - #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard(msg)]]) -#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) - #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) -#elif defined(_Check_return_) /* SAL */ - #define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_ - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) _Check_return_ -#else - #define JSON_HEDLEY_WARN_UNUSED_RESULT - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) -#endif - -#if defined(JSON_HEDLEY_SENTINEL) - #undef JSON_HEDLEY_SENTINEL -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position))) -#else - #define JSON_HEDLEY_SENTINEL(position) -#endif - -#if defined(JSON_HEDLEY_NO_RETURN) - #undef JSON_HEDLEY_NO_RETURN -#endif -#if JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_NO_RETURN __noreturn -#elif \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) -#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L - #define JSON_HEDLEY_NO_RETURN _Noreturn -#elif defined(__cplusplus) && (__cplusplus >= 201103L) - #define JSON_HEDLEY_NO_RETURN JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[noreturn]]) -#elif \ - JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,2,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) - #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) - #define JSON_HEDLEY_NO_RETURN _Pragma("does_not_return") -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) -#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) - #define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;") -#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) - #define JSON_HEDLEY_NO_RETURN __attribute((noreturn)) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) - #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) -#else - #define JSON_HEDLEY_NO_RETURN -#endif - -#if defined(JSON_HEDLEY_NO_ESCAPE) - #undef JSON_HEDLEY_NO_ESCAPE -#endif -#if JSON_HEDLEY_HAS_ATTRIBUTE(noescape) - #define JSON_HEDLEY_NO_ESCAPE __attribute__((__noescape__)) -#else - #define JSON_HEDLEY_NO_ESCAPE -#endif - -#if defined(JSON_HEDLEY_UNREACHABLE) - #undef JSON_HEDLEY_UNREACHABLE -#endif -#if defined(JSON_HEDLEY_UNREACHABLE_RETURN) - #undef JSON_HEDLEY_UNREACHABLE_RETURN -#endif -#if defined(JSON_HEDLEY_ASSUME) - #undef JSON_HEDLEY_ASSUME -#endif -#if \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_ASSUME(expr) __assume(expr) -#elif JSON_HEDLEY_HAS_BUILTIN(__builtin_assume) - #define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr) -#elif \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) - #if defined(__cplusplus) - #define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr) - #else - #define JSON_HEDLEY_ASSUME(expr) _nassert(expr) - #endif -#endif -#if \ - (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(18,10,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(10,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable() -#elif defined(JSON_HEDLEY_ASSUME) - #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) -#endif -#if !defined(JSON_HEDLEY_ASSUME) - #if defined(JSON_HEDLEY_UNREACHABLE) - #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, ((expr) ? 1 : (JSON_HEDLEY_UNREACHABLE(), 1))) - #else - #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, expr) - #endif -#endif -#if defined(JSON_HEDLEY_UNREACHABLE) - #if \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) - #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (JSON_HEDLEY_STATIC_CAST(void, JSON_HEDLEY_ASSUME(0)), (value)) - #else - #define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE() - #endif -#else - #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (value) -#endif -#if !defined(JSON_HEDLEY_UNREACHABLE) - #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) -#endif - -JSON_HEDLEY_DIAGNOSTIC_PUSH -#if JSON_HEDLEY_HAS_WARNING("-Wpedantic") - #pragma clang diagnostic ignored "-Wpedantic" -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat-pedantic") && defined(__cplusplus) - #pragma clang diagnostic ignored "-Wc++98-compat-pedantic" -#endif -#if JSON_HEDLEY_GCC_HAS_WARNING("-Wvariadic-macros",4,0,0) - #if defined(__clang__) - #pragma clang diagnostic ignored "-Wvariadic-macros" - #elif defined(JSON_HEDLEY_GCC_VERSION) - #pragma GCC diagnostic ignored "-Wvariadic-macros" - #endif -#endif -#if defined(JSON_HEDLEY_NON_NULL) - #undef JSON_HEDLEY_NON_NULL -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) - #define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__))) -#else - #define JSON_HEDLEY_NON_NULL(...) -#endif -JSON_HEDLEY_DIAGNOSTIC_POP - -#if defined(JSON_HEDLEY_PRINTF_FORMAT) - #undef JSON_HEDLEY_PRINTF_FORMAT -#endif -#if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && !defined(__USE_MINGW_ANSI_STDIO) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check))) -#elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && defined(__USE_MINGW_ANSI_STDIO) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check))) -#elif \ - JSON_HEDLEY_HAS_ATTRIBUTE(format) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check))) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(6,0,0) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __declspec(vaformat(printf,string_idx,first_to_check)) -#else - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) -#endif - -#if defined(JSON_HEDLEY_CONSTEXPR) - #undef JSON_HEDLEY_CONSTEXPR -#endif -#if defined(__cplusplus) - #if __cplusplus >= 201103L - #define JSON_HEDLEY_CONSTEXPR JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(constexpr) - #endif -#endif -#if !defined(JSON_HEDLEY_CONSTEXPR) - #define JSON_HEDLEY_CONSTEXPR -#endif - -#if defined(JSON_HEDLEY_PREDICT) - #undef JSON_HEDLEY_PREDICT -#endif -#if defined(JSON_HEDLEY_LIKELY) - #undef JSON_HEDLEY_LIKELY -#endif -#if defined(JSON_HEDLEY_UNLIKELY) - #undef JSON_HEDLEY_UNLIKELY -#endif -#if defined(JSON_HEDLEY_UNPREDICTABLE) - #undef JSON_HEDLEY_UNPREDICTABLE -#endif -#if JSON_HEDLEY_HAS_BUILTIN(__builtin_unpredictable) - #define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable((expr)) -#endif -#if \ - (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) && !defined(JSON_HEDLEY_PGI_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(9,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability( (expr), (value), (probability)) -# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) __builtin_expect_with_probability(!!(expr), 1 , (probability)) -# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) __builtin_expect_with_probability(!!(expr), 0 , (probability)) -# define JSON_HEDLEY_LIKELY(expr) __builtin_expect (!!(expr), 1 ) -# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect (!!(expr), 0 ) -#elif \ - (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,27) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PREDICT(expr, expected, probability) \ - (((probability) >= 0.9) ? __builtin_expect((expr), (expected)) : (JSON_HEDLEY_STATIC_CAST(void, expected), (expr))) -# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \ - (__extension__ ({ \ - double hedley_probability_ = (probability); \ - ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 1) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 0) : !!(expr))); \ - })) -# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \ - (__extension__ ({ \ - double hedley_probability_ = (probability); \ - ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 0) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 1) : !!(expr))); \ - })) -# define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1) -# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0) -#else -# define JSON_HEDLEY_PREDICT(expr, expected, probability) (JSON_HEDLEY_STATIC_CAST(void, expected), (expr)) -# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr)) -# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr)) -# define JSON_HEDLEY_LIKELY(expr) (!!(expr)) -# define JSON_HEDLEY_UNLIKELY(expr) (!!(expr)) -#endif -#if !defined(JSON_HEDLEY_UNPREDICTABLE) - #define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5) -#endif - -#if defined(JSON_HEDLEY_MALLOC) - #undef JSON_HEDLEY_MALLOC -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_MALLOC __attribute__((__malloc__)) -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) - #define JSON_HEDLEY_MALLOC _Pragma("returns_new_memory") -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_MALLOC __declspec(restrict) -#else - #define JSON_HEDLEY_MALLOC -#endif - -#if defined(JSON_HEDLEY_PURE) - #undef JSON_HEDLEY_PURE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(2,96,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PURE __attribute__((__pure__)) -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) -# define JSON_HEDLEY_PURE _Pragma("does_not_write_global_data") -#elif defined(__cplusplus) && \ - ( \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) \ - ) -# define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;") -#else -# define JSON_HEDLEY_PURE -#endif - -#if defined(JSON_HEDLEY_CONST) - #undef JSON_HEDLEY_CONST -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(const) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(2,5,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_CONST __attribute__((__const__)) -#elif \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) - #define JSON_HEDLEY_CONST _Pragma("no_side_effect") -#else - #define JSON_HEDLEY_CONST JSON_HEDLEY_PURE -#endif - -#if defined(JSON_HEDLEY_RESTRICT) - #undef JSON_HEDLEY_RESTRICT -#endif -#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus) - #define JSON_HEDLEY_RESTRICT restrict -#elif \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,4) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ - defined(__clang__) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_RESTRICT __restrict -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,3,0) && !defined(__cplusplus) - #define JSON_HEDLEY_RESTRICT _Restrict -#else - #define JSON_HEDLEY_RESTRICT -#endif - -#if defined(JSON_HEDLEY_INLINE) - #undef JSON_HEDLEY_INLINE -#endif -#if \ - (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ - (defined(__cplusplus) && (__cplusplus >= 199711L)) - #define JSON_HEDLEY_INLINE inline -#elif \ - defined(JSON_HEDLEY_GCC_VERSION) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(6,2,0) - #define JSON_HEDLEY_INLINE __inline__ -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,1,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_INLINE __inline -#else - #define JSON_HEDLEY_INLINE -#endif - -#if defined(JSON_HEDLEY_ALWAYS_INLINE) - #undef JSON_HEDLEY_ALWAYS_INLINE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) -# define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) -# define JSON_HEDLEY_ALWAYS_INLINE __forceinline -#elif defined(__cplusplus) && \ - ( \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) \ - ) -# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) -# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced") -#else -# define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE -#endif - -#if defined(JSON_HEDLEY_NEVER_INLINE) - #undef JSON_HEDLEY_NEVER_INLINE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) - #define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__)) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(10,2,0) - #define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline") -#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) - #define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never") -#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) - #define JSON_HEDLEY_NEVER_INLINE __attribute((noinline)) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) - #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) -#else - #define JSON_HEDLEY_NEVER_INLINE -#endif - -#if defined(JSON_HEDLEY_PRIVATE) - #undef JSON_HEDLEY_PRIVATE -#endif -#if defined(JSON_HEDLEY_PUBLIC) - #undef JSON_HEDLEY_PUBLIC -#endif -#if defined(JSON_HEDLEY_IMPORT) - #undef JSON_HEDLEY_IMPORT -#endif -#if defined(_WIN32) || defined(__CYGWIN__) -# define JSON_HEDLEY_PRIVATE -# define JSON_HEDLEY_PUBLIC __declspec(dllexport) -# define JSON_HEDLEY_IMPORT __declspec(dllimport) -#else -# if \ - JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ - ( \ - defined(__TI_EABI__) && \ - ( \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) \ - ) \ - ) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden"))) -# define JSON_HEDLEY_PUBLIC __attribute__((__visibility__("default"))) -# else -# define JSON_HEDLEY_PRIVATE -# define JSON_HEDLEY_PUBLIC -# endif -# define JSON_HEDLEY_IMPORT extern -#endif - -#if defined(JSON_HEDLEY_NO_THROW) - #undef JSON_HEDLEY_NO_THROW -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__)) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,1,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) - #define JSON_HEDLEY_NO_THROW __declspec(nothrow) -#else - #define JSON_HEDLEY_NO_THROW -#endif - -#if defined(JSON_HEDLEY_FALL_THROUGH) - #undef JSON_HEDLEY_FALL_THROUGH -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(7,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__)) -#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough) - #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[clang::fallthrough]]) -#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough) - #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[fallthrough]]) -#elif defined(__fallthrough) /* SAL */ - #define JSON_HEDLEY_FALL_THROUGH __fallthrough -#else - #define JSON_HEDLEY_FALL_THROUGH -#endif - -#if defined(JSON_HEDLEY_RETURNS_NON_NULL) - #undef JSON_HEDLEY_RETURNS_NON_NULL -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__)) -#elif defined(_Ret_notnull_) /* SAL */ - #define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_ -#else - #define JSON_HEDLEY_RETURNS_NON_NULL -#endif - -#if defined(JSON_HEDLEY_ARRAY_PARAM) - #undef JSON_HEDLEY_ARRAY_PARAM -#endif -#if \ - defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ - !defined(__STDC_NO_VLA__) && \ - !defined(__cplusplus) && \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_TINYC_VERSION) - #define JSON_HEDLEY_ARRAY_PARAM(name) (name) -#else - #define JSON_HEDLEY_ARRAY_PARAM(name) -#endif - -#if defined(JSON_HEDLEY_IS_CONSTANT) - #undef JSON_HEDLEY_IS_CONSTANT -#endif -#if defined(JSON_HEDLEY_REQUIRE_CONSTEXPR) - #undef JSON_HEDLEY_REQUIRE_CONSTEXPR -#endif -/* JSON_HEDLEY_IS_CONSTEXPR_ is for - HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ -#if defined(JSON_HEDLEY_IS_CONSTEXPR_) - #undef JSON_HEDLEY_IS_CONSTEXPR_ -#endif -#if \ - JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,19) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) && !defined(__cplusplus)) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr) -#endif -#if !defined(__cplusplus) -# if \ - JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,24) -#if defined(__INTPTR_TYPE__) - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0)), int*) -#else - #include - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((intptr_t) ((expr) * 0)) : (int*) 0)), int*) -#endif -# elif \ - ( \ - defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \ - !defined(JSON_HEDLEY_SUNPRO_VERSION) && \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_IAR_VERSION)) || \ - (JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,3,0) -#if defined(__INTPTR_TYPE__) - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0), int*: 1, void*: 0) -#else - #include - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((intptr_t) * 0) : (int*) 0), int*: 1, void*: 0) -#endif -# elif \ - defined(JSON_HEDLEY_GCC_VERSION) || \ - defined(JSON_HEDLEY_INTEL_VERSION) || \ - defined(JSON_HEDLEY_TINYC_VERSION) || \ - defined(JSON_HEDLEY_TI_ARMCL_VERSION) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(18,12,0) || \ - defined(JSON_HEDLEY_TI_CL2000_VERSION) || \ - defined(JSON_HEDLEY_TI_CL6X_VERSION) || \ - defined(JSON_HEDLEY_TI_CL7X_VERSION) || \ - defined(JSON_HEDLEY_TI_CLPRU_VERSION) || \ - defined(__clang__) -# define JSON_HEDLEY_IS_CONSTEXPR_(expr) ( \ - sizeof(void) != \ - sizeof(*( \ - 1 ? \ - ((void*) ((expr) * 0L) ) : \ -((struct { char v[sizeof(void) * 2]; } *) 1) \ - ) \ - ) \ - ) -# endif -#endif -#if defined(JSON_HEDLEY_IS_CONSTEXPR_) - #if !defined(JSON_HEDLEY_IS_CONSTANT) - #define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY_IS_CONSTEXPR_(expr) - #endif - #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY_IS_CONSTEXPR_(expr) ? (expr) : (-1)) -#else - #if !defined(JSON_HEDLEY_IS_CONSTANT) - #define JSON_HEDLEY_IS_CONSTANT(expr) (0) - #endif - #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr) -#endif - -#if defined(JSON_HEDLEY_BEGIN_C_DECLS) - #undef JSON_HEDLEY_BEGIN_C_DECLS -#endif -#if defined(JSON_HEDLEY_END_C_DECLS) - #undef JSON_HEDLEY_END_C_DECLS -#endif -#if defined(JSON_HEDLEY_C_DECL) - #undef JSON_HEDLEY_C_DECL -#endif -#if defined(__cplusplus) - #define JSON_HEDLEY_BEGIN_C_DECLS extern "C" { - #define JSON_HEDLEY_END_C_DECLS } - #define JSON_HEDLEY_C_DECL extern "C" -#else - #define JSON_HEDLEY_BEGIN_C_DECLS - #define JSON_HEDLEY_END_C_DECLS - #define JSON_HEDLEY_C_DECL -#endif - -#if defined(JSON_HEDLEY_STATIC_ASSERT) - #undef JSON_HEDLEY_STATIC_ASSERT -#endif -#if \ - !defined(__cplusplus) && ( \ - (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \ - (JSON_HEDLEY_HAS_FEATURE(c_static_assert) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(6,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - defined(_Static_assert) \ - ) -# define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message) -#elif \ - (defined(__cplusplus) && (__cplusplus >= 201103L)) || \ - JSON_HEDLEY_MSVC_VERSION_CHECK(16,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) -# define JSON_HEDLEY_STATIC_ASSERT(expr, message) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(static_assert(expr, message)) -#else -# define JSON_HEDLEY_STATIC_ASSERT(expr, message) -#endif - -#if defined(JSON_HEDLEY_NULL) - #undef JSON_HEDLEY_NULL -#endif -#if defined(__cplusplus) - #if __cplusplus >= 201103L - #define JSON_HEDLEY_NULL JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(nullptr) - #elif defined(NULL) - #define JSON_HEDLEY_NULL NULL - #else - #define JSON_HEDLEY_NULL JSON_HEDLEY_STATIC_CAST(void*, 0) - #endif -#elif defined(NULL) - #define JSON_HEDLEY_NULL NULL -#else - #define JSON_HEDLEY_NULL ((void*) 0) -#endif - -#if defined(JSON_HEDLEY_MESSAGE) - #undef JSON_HEDLEY_MESSAGE -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") -# define JSON_HEDLEY_MESSAGE(msg) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ - JSON_HEDLEY_PRAGMA(message msg) \ - JSON_HEDLEY_DIAGNOSTIC_POP -#elif \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg) -#elif JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg) -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) -#else -# define JSON_HEDLEY_MESSAGE(msg) -#endif - -#if defined(JSON_HEDLEY_WARNING) - #undef JSON_HEDLEY_WARNING -#endif -#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") -# define JSON_HEDLEY_WARNING(msg) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ - JSON_HEDLEY_PRAGMA(clang warning msg) \ - JSON_HEDLEY_DIAGNOSTIC_POP -#elif \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,8,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) -# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) -# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg)) -#else -# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg) -#endif - -#if defined(JSON_HEDLEY_REQUIRE) - #undef JSON_HEDLEY_REQUIRE -#endif -#if defined(JSON_HEDLEY_REQUIRE_MSG) - #undef JSON_HEDLEY_REQUIRE_MSG -#endif -#if JSON_HEDLEY_HAS_ATTRIBUTE(diagnose_if) -# if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat") -# define JSON_HEDLEY_REQUIRE(expr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ - __attribute__((diagnose_if(!(expr), #expr, "error"))) \ - JSON_HEDLEY_DIAGNOSTIC_POP -# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ - __attribute__((diagnose_if(!(expr), msg, "error"))) \ - JSON_HEDLEY_DIAGNOSTIC_POP -# else -# define JSON_HEDLEY_REQUIRE(expr) __attribute__((diagnose_if(!(expr), #expr, "error"))) -# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) __attribute__((diagnose_if(!(expr), msg, "error"))) -# endif -#else -# define JSON_HEDLEY_REQUIRE(expr) -# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) -#endif - -#if defined(JSON_HEDLEY_FLAGS) - #undef JSON_HEDLEY_FLAGS -#endif -#if JSON_HEDLEY_HAS_ATTRIBUTE(flag_enum) && (!defined(__cplusplus) || JSON_HEDLEY_HAS_WARNING("-Wbitfield-enum-conversion")) - #define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__)) -#else - #define JSON_HEDLEY_FLAGS -#endif - -#if defined(JSON_HEDLEY_FLAGS_CAST) - #undef JSON_HEDLEY_FLAGS_CAST -#endif -#if JSON_HEDLEY_INTEL_VERSION_CHECK(19,0,0) -# define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__ ({ \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("warning(disable:188)") \ - ((T) (expr)); \ - JSON_HEDLEY_DIAGNOSTIC_POP \ - })) -#else -# define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr) -#endif - -#if defined(JSON_HEDLEY_EMPTY_BASES) - #undef JSON_HEDLEY_EMPTY_BASES -#endif -#if \ - (JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,23918) && !JSON_HEDLEY_MSVC_VERSION_CHECK(20,0,0)) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_EMPTY_BASES __declspec(empty_bases) -#else - #define JSON_HEDLEY_EMPTY_BASES -#endif - -/* Remaining macros are deprecated. */ - -#if defined(JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK) - #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK -#endif -#if defined(__clang__) - #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) (0) -#else - #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if defined(JSON_HEDLEY_CLANG_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE -#endif -#define JSON_HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) - -#if defined(JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE -#endif -#define JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) - -#if defined(JSON_HEDLEY_CLANG_HAS_BUILTIN) - #undef JSON_HEDLEY_CLANG_HAS_BUILTIN -#endif -#define JSON_HEDLEY_CLANG_HAS_BUILTIN(builtin) JSON_HEDLEY_HAS_BUILTIN(builtin) - -#if defined(JSON_HEDLEY_CLANG_HAS_FEATURE) - #undef JSON_HEDLEY_CLANG_HAS_FEATURE -#endif -#define JSON_HEDLEY_CLANG_HAS_FEATURE(feature) JSON_HEDLEY_HAS_FEATURE(feature) - -#if defined(JSON_HEDLEY_CLANG_HAS_EXTENSION) - #undef JSON_HEDLEY_CLANG_HAS_EXTENSION -#endif -#define JSON_HEDLEY_CLANG_HAS_EXTENSION(extension) JSON_HEDLEY_HAS_EXTENSION(extension) - -#if defined(JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE -#endif -#define JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) - -#if defined(JSON_HEDLEY_CLANG_HAS_WARNING) - #undef JSON_HEDLEY_CLANG_HAS_WARNING -#endif -#define JSON_HEDLEY_CLANG_HAS_WARNING(warning) JSON_HEDLEY_HAS_WARNING(warning) - -#endif /* !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < X) */ - - -// This file contains all internal macro definitions -// You MUST include macro_unscope.hpp at the end of json.hpp to undef all of them - -// exclude unsupported compilers -#if !defined(JSON_SKIP_UNSUPPORTED_COMPILER_CHECK) - #if defined(__clang__) - #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400 - #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers" - #endif - #elif defined(__GNUC__) && !(defined(__ICC) || defined(__INTEL_COMPILER)) - #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800 - #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers" - #endif - #endif -#endif - -// C++ language standard detection -// if the user manually specified the used c++ version this is skipped -#if !defined(JSON_HAS_CPP_20) && !defined(JSON_HAS_CPP_17) && !defined(JSON_HAS_CPP_14) && !defined(JSON_HAS_CPP_11) - #if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L) - #define JSON_HAS_CPP_20 - #define JSON_HAS_CPP_17 - #define JSON_HAS_CPP_14 - #elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464 - #define JSON_HAS_CPP_17 - #define JSON_HAS_CPP_14 - #elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1) - #define JSON_HAS_CPP_14 - #endif - // the cpp 11 flag is always specified because it is the minimal required version - #define JSON_HAS_CPP_11 -#endif - -// disable documentation warnings on clang -#if defined(__clang__) - #pragma clang diagnostic push - #pragma clang diagnostic ignored "-Wdocumentation" - #pragma clang diagnostic ignored "-Wdocumentation-unknown-command" -#endif - -// allow to disable exceptions -#if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)) && !defined(JSON_NOEXCEPTION) - #define JSON_THROW(exception) throw exception - #define JSON_TRY try - #define JSON_CATCH(exception) catch(exception) - #define JSON_INTERNAL_CATCH(exception) catch(exception) -#else - #include - #define JSON_THROW(exception) std::abort() - #define JSON_TRY if(true) - #define JSON_CATCH(exception) if(false) - #define JSON_INTERNAL_CATCH(exception) if(false) -#endif - -// override exception macros -#if defined(JSON_THROW_USER) - #undef JSON_THROW - #define JSON_THROW JSON_THROW_USER -#endif -#if defined(JSON_TRY_USER) - #undef JSON_TRY - #define JSON_TRY JSON_TRY_USER -#endif -#if defined(JSON_CATCH_USER) - #undef JSON_CATCH - #define JSON_CATCH JSON_CATCH_USER - #undef JSON_INTERNAL_CATCH - #define JSON_INTERNAL_CATCH JSON_CATCH_USER -#endif -#if defined(JSON_INTERNAL_CATCH_USER) - #undef JSON_INTERNAL_CATCH - #define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER -#endif - -// allow to override assert -#if !defined(JSON_ASSERT) - #include // assert - #define JSON_ASSERT(x) assert(x) -#endif - -// allow to access some private functions (needed by the test suite) -#if defined(JSON_TESTS_PRIVATE) - #define JSON_PRIVATE_UNLESS_TESTED public -#else - #define JSON_PRIVATE_UNLESS_TESTED private -#endif - -/*! -@brief macro to briefly define a mapping between an enum and JSON -@def NLOHMANN_JSON_SERIALIZE_ENUM -@since version 3.4.0 -*/ -#define NLOHMANN_JSON_SERIALIZE_ENUM(ENUM_TYPE, ...) \ - template \ - inline void to_json(BasicJsonType& j, const ENUM_TYPE& e) \ - { \ - static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ - static const std::pair m[] = __VA_ARGS__; \ - auto it = std::find_if(std::begin(m), std::end(m), \ - [e](const std::pair& ej_pair) -> bool \ - { \ - return ej_pair.first == e; \ - }); \ - j = ((it != std::end(m)) ? it : std::begin(m))->second; \ - } \ - template \ - inline void from_json(const BasicJsonType& j, ENUM_TYPE& e) \ - { \ - static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ - static const std::pair m[] = __VA_ARGS__; \ - auto it = std::find_if(std::begin(m), std::end(m), \ - [&j](const std::pair& ej_pair) -> bool \ - { \ - return ej_pair.second == j; \ - }); \ - e = ((it != std::end(m)) ? it : std::begin(m))->first; \ - } - -// Ugly macros to avoid uglier copy-paste when specializing basic_json. They -// may be removed in the future once the class is split. - -#define NLOHMANN_BASIC_JSON_TPL_DECLARATION \ - template class ObjectType, \ - template class ArrayType, \ - class StringType, class BooleanType, class NumberIntegerType, \ - class NumberUnsignedType, class NumberFloatType, \ - template class AllocatorType, \ - template class JSONSerializer, \ - class BinaryType> - -#define NLOHMANN_BASIC_JSON_TPL \ - basic_json - -// Macros to simplify conversion from/to types - -#define NLOHMANN_JSON_EXPAND( x ) x -#define NLOHMANN_JSON_GET_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, NAME,...) NAME -#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \ - NLOHMANN_JSON_PASTE64, \ - NLOHMANN_JSON_PASTE63, \ - NLOHMANN_JSON_PASTE62, \ - NLOHMANN_JSON_PASTE61, \ - NLOHMANN_JSON_PASTE60, \ - NLOHMANN_JSON_PASTE59, \ - NLOHMANN_JSON_PASTE58, \ - NLOHMANN_JSON_PASTE57, \ - NLOHMANN_JSON_PASTE56, \ - NLOHMANN_JSON_PASTE55, \ - NLOHMANN_JSON_PASTE54, \ - NLOHMANN_JSON_PASTE53, \ - NLOHMANN_JSON_PASTE52, \ - NLOHMANN_JSON_PASTE51, \ - NLOHMANN_JSON_PASTE50, \ - NLOHMANN_JSON_PASTE49, \ - NLOHMANN_JSON_PASTE48, \ - NLOHMANN_JSON_PASTE47, \ - NLOHMANN_JSON_PASTE46, \ - NLOHMANN_JSON_PASTE45, \ - NLOHMANN_JSON_PASTE44, \ - NLOHMANN_JSON_PASTE43, \ - NLOHMANN_JSON_PASTE42, \ - NLOHMANN_JSON_PASTE41, \ - NLOHMANN_JSON_PASTE40, \ - NLOHMANN_JSON_PASTE39, \ - NLOHMANN_JSON_PASTE38, \ - NLOHMANN_JSON_PASTE37, \ - NLOHMANN_JSON_PASTE36, \ - NLOHMANN_JSON_PASTE35, \ - NLOHMANN_JSON_PASTE34, \ - NLOHMANN_JSON_PASTE33, \ - NLOHMANN_JSON_PASTE32, \ - NLOHMANN_JSON_PASTE31, \ - NLOHMANN_JSON_PASTE30, \ - NLOHMANN_JSON_PASTE29, \ - NLOHMANN_JSON_PASTE28, \ - NLOHMANN_JSON_PASTE27, \ - NLOHMANN_JSON_PASTE26, \ - NLOHMANN_JSON_PASTE25, \ - NLOHMANN_JSON_PASTE24, \ - NLOHMANN_JSON_PASTE23, \ - NLOHMANN_JSON_PASTE22, \ - NLOHMANN_JSON_PASTE21, \ - NLOHMANN_JSON_PASTE20, \ - NLOHMANN_JSON_PASTE19, \ - NLOHMANN_JSON_PASTE18, \ - NLOHMANN_JSON_PASTE17, \ - NLOHMANN_JSON_PASTE16, \ - NLOHMANN_JSON_PASTE15, \ - NLOHMANN_JSON_PASTE14, \ - NLOHMANN_JSON_PASTE13, \ - NLOHMANN_JSON_PASTE12, \ - NLOHMANN_JSON_PASTE11, \ - NLOHMANN_JSON_PASTE10, \ - NLOHMANN_JSON_PASTE9, \ - NLOHMANN_JSON_PASTE8, \ - NLOHMANN_JSON_PASTE7, \ - NLOHMANN_JSON_PASTE6, \ - NLOHMANN_JSON_PASTE5, \ - NLOHMANN_JSON_PASTE4, \ - NLOHMANN_JSON_PASTE3, \ - NLOHMANN_JSON_PASTE2, \ - NLOHMANN_JSON_PASTE1)(__VA_ARGS__)) -#define NLOHMANN_JSON_PASTE2(func, v1) func(v1) -#define NLOHMANN_JSON_PASTE3(func, v1, v2) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE2(func, v2) -#define NLOHMANN_JSON_PASTE4(func, v1, v2, v3) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE3(func, v2, v3) -#define NLOHMANN_JSON_PASTE5(func, v1, v2, v3, v4) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE4(func, v2, v3, v4) -#define NLOHMANN_JSON_PASTE6(func, v1, v2, v3, v4, v5) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE5(func, v2, v3, v4, v5) -#define NLOHMANN_JSON_PASTE7(func, v1, v2, v3, v4, v5, v6) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE6(func, v2, v3, v4, v5, v6) -#define NLOHMANN_JSON_PASTE8(func, v1, v2, v3, v4, v5, v6, v7) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE7(func, v2, v3, v4, v5, v6, v7) -#define NLOHMANN_JSON_PASTE9(func, v1, v2, v3, v4, v5, v6, v7, v8) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8) -#define NLOHMANN_JSON_PASTE10(func, v1, v2, v3, v4, v5, v6, v7, v8, v9) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE9(func, v2, v3, v4, v5, v6, v7, v8, v9) -#define NLOHMANN_JSON_PASTE11(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE10(func, v2, v3, v4, v5, v6, v7, v8, v9, v10) -#define NLOHMANN_JSON_PASTE12(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE11(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) -#define NLOHMANN_JSON_PASTE13(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE12(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) -#define NLOHMANN_JSON_PASTE14(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE13(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) -#define NLOHMANN_JSON_PASTE15(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE14(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) -#define NLOHMANN_JSON_PASTE16(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE15(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) -#define NLOHMANN_JSON_PASTE17(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE16(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) -#define NLOHMANN_JSON_PASTE18(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE17(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) -#define NLOHMANN_JSON_PASTE19(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE18(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) -#define NLOHMANN_JSON_PASTE20(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE19(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) -#define NLOHMANN_JSON_PASTE21(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE20(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) -#define NLOHMANN_JSON_PASTE22(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE21(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) -#define NLOHMANN_JSON_PASTE23(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE22(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) -#define NLOHMANN_JSON_PASTE24(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE23(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) -#define NLOHMANN_JSON_PASTE25(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE24(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) -#define NLOHMANN_JSON_PASTE26(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE25(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) -#define NLOHMANN_JSON_PASTE27(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE26(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) -#define NLOHMANN_JSON_PASTE28(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE27(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) -#define NLOHMANN_JSON_PASTE29(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE28(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) -#define NLOHMANN_JSON_PASTE30(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE29(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) -#define NLOHMANN_JSON_PASTE31(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE30(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) -#define NLOHMANN_JSON_PASTE32(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE31(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) -#define NLOHMANN_JSON_PASTE33(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE32(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) -#define NLOHMANN_JSON_PASTE34(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE33(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) -#define NLOHMANN_JSON_PASTE35(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE34(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) -#define NLOHMANN_JSON_PASTE36(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE35(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) -#define NLOHMANN_JSON_PASTE37(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE36(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) -#define NLOHMANN_JSON_PASTE38(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE37(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) -#define NLOHMANN_JSON_PASTE39(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE38(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) -#define NLOHMANN_JSON_PASTE40(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE39(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) -#define NLOHMANN_JSON_PASTE41(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE40(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) -#define NLOHMANN_JSON_PASTE42(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE41(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) -#define NLOHMANN_JSON_PASTE43(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE42(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) -#define NLOHMANN_JSON_PASTE44(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE43(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) -#define NLOHMANN_JSON_PASTE45(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE44(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) -#define NLOHMANN_JSON_PASTE46(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE45(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) -#define NLOHMANN_JSON_PASTE47(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE46(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) -#define NLOHMANN_JSON_PASTE48(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE47(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) -#define NLOHMANN_JSON_PASTE49(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE48(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) -#define NLOHMANN_JSON_PASTE50(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE49(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) -#define NLOHMANN_JSON_PASTE51(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE50(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) -#define NLOHMANN_JSON_PASTE52(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE51(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) -#define NLOHMANN_JSON_PASTE53(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE52(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) -#define NLOHMANN_JSON_PASTE54(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE53(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) -#define NLOHMANN_JSON_PASTE55(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE54(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) -#define NLOHMANN_JSON_PASTE56(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE55(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) -#define NLOHMANN_JSON_PASTE57(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE56(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) -#define NLOHMANN_JSON_PASTE58(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE57(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) -#define NLOHMANN_JSON_PASTE59(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE58(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) -#define NLOHMANN_JSON_PASTE60(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE59(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) -#define NLOHMANN_JSON_PASTE61(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE60(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) -#define NLOHMANN_JSON_PASTE62(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE61(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) -#define NLOHMANN_JSON_PASTE63(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE62(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) -#define NLOHMANN_JSON_PASTE64(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE63(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) - -#define NLOHMANN_JSON_TO(v1) nlohmann_json_j[#v1] = nlohmann_json_t.v1; -#define NLOHMANN_JSON_FROM(v1) nlohmann_json_j.at(#v1).get_to(nlohmann_json_t.v1); - -/*! -@brief macro -@def NLOHMANN_DEFINE_TYPE_INTRUSIVE -@since version 3.9.0 -*/ -#define NLOHMANN_DEFINE_TYPE_INTRUSIVE(Type, ...) \ - friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ - friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) } - -/*! -@brief macro -@def NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE -@since version 3.9.0 -*/ -#define NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(Type, ...) \ - inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ - inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) } - -#ifndef JSON_USE_IMPLICIT_CONVERSIONS - #define JSON_USE_IMPLICIT_CONVERSIONS 1 -#endif - -#if JSON_USE_IMPLICIT_CONVERSIONS - #define JSON_EXPLICIT -#else - #define JSON_EXPLICIT explicit -#endif - - -namespace nlohmann -{ -namespace detail -{ - -/*! -@brief replace all occurrences of a substring by another string - -@param[in,out] s the string to manipulate; changed so that all - occurrences of @a f are replaced with @a t -@param[in] f the substring to replace with @a t -@param[in] t the string to replace @a f - -@pre The search string @a f must not be empty. **This precondition is -enforced with an assertion.** - -@since version 2.0.0 -*/ -inline void replace_substring(std::string& s, const std::string& f, - const std::string& t) -{ - JSON_ASSERT(!f.empty()); - for (auto pos = s.find(f); // find first occurrence of f - pos != std::string::npos; // make sure f was found - s.replace(pos, f.size(), t), // replace with t, and - pos = s.find(f, pos + t.size())) // find next occurrence of f - {} -} - -/*! - * @brief string escaping as described in RFC 6901 (Sect. 4) - * @param[in] s string to escape - * @return escaped string - * - * Note the order of escaping "~" to "~0" and "/" to "~1" is important. - */ -inline std::string escape(std::string s) -{ - replace_substring(s, "~", "~0"); - replace_substring(s, "/", "~1"); - return s; -} - -/*! - * @brief string unescaping as described in RFC 6901 (Sect. 4) - * @param[in] s string to unescape - * @return unescaped string - * - * Note the order of escaping "~1" to "/" and "~0" to "~" is important. - */ -static void unescape(std::string& s) -{ - replace_substring(s, "~1", "/"); - replace_substring(s, "~0", "~"); -} - -} // namespace detail -} // namespace nlohmann - -// #include - - -#include // size_t - -namespace nlohmann -{ -namespace detail -{ -/// struct to capture the start position of the current token -struct position_t -{ - /// the total number of characters read - std::size_t chars_read_total = 0; - /// the number of characters read in the current line - std::size_t chars_read_current_line = 0; - /// the number of lines read - std::size_t lines_read = 0; - - /// conversion to size_t to preserve SAX interface - constexpr operator size_t() const - { - return chars_read_total; - } -}; - -} // namespace detail -} // namespace nlohmann - -// #include - - -namespace nlohmann -{ -namespace detail -{ -//////////////// -// exceptions // -//////////////// - -/*! -@brief general exception of the @ref basic_json class - -This class is an extension of `std::exception` objects with a member @a id for -exception ids. It is used as the base class for all exceptions thrown by the -@ref basic_json class. This class can hence be used as "wildcard" to catch -exceptions. - -Subclasses: -- @ref parse_error for exceptions indicating a parse error -- @ref invalid_iterator for exceptions indicating errors with iterators -- @ref type_error for exceptions indicating executing a member function with - a wrong type -- @ref out_of_range for exceptions indicating access out of the defined range -- @ref other_error for exceptions indicating other library errors - -@internal -@note To have nothrow-copy-constructible exceptions, we internally use - `std::runtime_error` which can cope with arbitrary-length error messages. - Intermediate strings are built with static functions and then passed to - the actual constructor. -@endinternal - -@liveexample{The following code shows how arbitrary library exceptions can be -caught.,exception} - -@since version 3.0.0 -*/ -class exception : public std::exception -{ - public: - /// returns the explanatory string - const char* what() const noexcept override - { - return m.what(); - } - - /// the id of the exception - const int id; // NOLINT(cppcoreguidelines-non-private-member-variables-in-classes) - - protected: - JSON_HEDLEY_NON_NULL(3) - exception(int id_, const char* what_arg) : id(id_), m(what_arg) {} - - static std::string name(const std::string& ename, int id_) - { - return "[json.exception." + ename + "." + std::to_string(id_) + "] "; - } - - template - static std::string diagnostics(const BasicJsonType& leaf_element) - { -#if JSON_DIAGNOSTICS - std::vector tokens; - for (const auto* current = &leaf_element; current->m_parent != nullptr; current = current->m_parent) - { - switch (current->m_parent->type()) - { - case value_t::array: - { - for (std::size_t i = 0; i < current->m_parent->m_value.array->size(); ++i) - { - if (¤t->m_parent->m_value.array->operator[](i) == current) - { - tokens.emplace_back(std::to_string(i)); - break; - } - } - break; - } - - case value_t::object: - { - for (const auto& element : *current->m_parent->m_value.object) - { - if (&element.second == current) - { - tokens.emplace_back(element.first.c_str()); - break; - } - } - break; - } - - case value_t::null: // LCOV_EXCL_LINE - case value_t::string: // LCOV_EXCL_LINE - case value_t::boolean: // LCOV_EXCL_LINE - case value_t::number_integer: // LCOV_EXCL_LINE - case value_t::number_unsigned: // LCOV_EXCL_LINE - case value_t::number_float: // LCOV_EXCL_LINE - case value_t::binary: // LCOV_EXCL_LINE - case value_t::discarded: // LCOV_EXCL_LINE - default: // LCOV_EXCL_LINE - break; // LCOV_EXCL_LINE - } - } - - if (tokens.empty()) - { - return ""; - } - - return "(" + std::accumulate(tokens.rbegin(), tokens.rend(), std::string{}, - [](const std::string & a, const std::string & b) - { - return a + "/" + detail::escape(b); - }) + ") "; -#else - static_cast(leaf_element); - return ""; -#endif - } - - private: - /// an exception object as storage for error messages - std::runtime_error m; -}; - -/*! -@brief exception indicating a parse error - -This exception is thrown by the library when a parse error occurs. Parse errors -can occur during the deserialization of JSON text, CBOR, MessagePack, as well -as when using JSON Patch. - -Member @a byte holds the byte index of the last read character in the input -file. - -Exceptions have ids 1xx. - -name / id | example message | description ------------------------------- | --------------- | ------------------------- -json.exception.parse_error.101 | parse error at 2: unexpected end of input; expected string literal | This error indicates a syntax error while deserializing a JSON text. The error message describes that an unexpected token (character) was encountered, and the member @a byte indicates the error position. -json.exception.parse_error.102 | parse error at 14: missing or wrong low surrogate | JSON uses the `\uxxxx` format to describe Unicode characters. Code points above above 0xFFFF are split into two `\uxxxx` entries ("surrogate pairs"). This error indicates that the surrogate pair is incomplete or contains an invalid code point. -json.exception.parse_error.103 | parse error: code points above 0x10FFFF are invalid | Unicode supports code points up to 0x10FFFF. Code points above 0x10FFFF are invalid. -json.exception.parse_error.104 | parse error: JSON patch must be an array of objects | [RFC 6902](https://tools.ietf.org/html/rfc6902) requires a JSON Patch document to be a JSON document that represents an array of objects. -json.exception.parse_error.105 | parse error: operation must have string member 'op' | An operation of a JSON Patch document must contain exactly one "op" member, whose value indicates the operation to perform. Its value must be one of "add", "remove", "replace", "move", "copy", or "test"; other values are errors. -json.exception.parse_error.106 | parse error: array index '01' must not begin with '0' | An array index in a JSON Pointer ([RFC 6901](https://tools.ietf.org/html/rfc6901)) may be `0` or any number without a leading `0`. -json.exception.parse_error.107 | parse error: JSON pointer must be empty or begin with '/' - was: 'foo' | A JSON Pointer must be a Unicode string containing a sequence of zero or more reference tokens, each prefixed by a `/` character. -json.exception.parse_error.108 | parse error: escape character '~' must be followed with '0' or '1' | In a JSON Pointer, only `~0` and `~1` are valid escape sequences. -json.exception.parse_error.109 | parse error: array index 'one' is not a number | A JSON Pointer array index must be a number. -json.exception.parse_error.110 | parse error at 1: cannot read 2 bytes from vector | When parsing CBOR or MessagePack, the byte vector ends before the complete value has been read. -json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xF8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read. -json.exception.parse_error.113 | parse error at 2: expected a CBOR string; last byte: 0x98 | While parsing a map key, a value that is not a string has been read. -json.exception.parse_error.114 | parse error: Unsupported BSON record type 0x0F | The parsing of the corresponding BSON record type is not implemented (yet). -json.exception.parse_error.115 | parse error at byte 5: syntax error while parsing UBJSON high-precision number: invalid number text: 1A | A UBJSON high-precision number could not be parsed. - -@note For an input with n bytes, 1 is the index of the first character and n+1 - is the index of the terminating null byte or the end of file. This also - holds true when reading a byte vector (CBOR or MessagePack). - -@liveexample{The following code shows how a `parse_error` exception can be -caught.,parse_error} - -@sa - @ref exception for the base class of the library exceptions -@sa - @ref invalid_iterator for exceptions indicating errors with iterators -@sa - @ref type_error for exceptions indicating executing a member function with - a wrong type -@sa - @ref out_of_range for exceptions indicating access out of the defined range -@sa - @ref other_error for exceptions indicating other library errors - -@since version 3.0.0 -*/ -class parse_error : public exception -{ - public: - /*! - @brief create a parse error exception - @param[in] id_ the id of the exception - @param[in] pos the position where the error occurred (or with - chars_read_total=0 if the position cannot be - determined) - @param[in] what_arg the explanatory string - @return parse_error object - */ - template - static parse_error create(int id_, const position_t& pos, const std::string& what_arg, const BasicJsonType& context) - { - std::string w = exception::name("parse_error", id_) + "parse error" + - position_string(pos) + ": " + exception::diagnostics(context) + what_arg; - return parse_error(id_, pos.chars_read_total, w.c_str()); - } - - template - static parse_error create(int id_, std::size_t byte_, const std::string& what_arg, const BasicJsonType& context) - { - std::string w = exception::name("parse_error", id_) + "parse error" + - (byte_ != 0 ? (" at byte " + std::to_string(byte_)) : "") + - ": " + exception::diagnostics(context) + what_arg; - return parse_error(id_, byte_, w.c_str()); - } - - /*! - @brief byte index of the parse error - - The byte index of the last read character in the input file. - - @note For an input with n bytes, 1 is the index of the first character and - n+1 is the index of the terminating null byte or the end of file. - This also holds true when reading a byte vector (CBOR or MessagePack). - */ - const std::size_t byte; - - private: - parse_error(int id_, std::size_t byte_, const char* what_arg) - : exception(id_, what_arg), byte(byte_) {} - - static std::string position_string(const position_t& pos) - { - return " at line " + std::to_string(pos.lines_read + 1) + - ", column " + std::to_string(pos.chars_read_current_line); - } -}; - -/*! -@brief exception indicating errors with iterators - -This exception is thrown if iterators passed to a library function do not match -the expected semantics. - -Exceptions have ids 2xx. - -name / id | example message | description ------------------------------------ | --------------- | ------------------------- -json.exception.invalid_iterator.201 | iterators are not compatible | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid. -json.exception.invalid_iterator.202 | iterator does not fit current value | In an erase or insert function, the passed iterator @a pos does not belong to the JSON value for which the function was called. It hence does not define a valid position for the deletion/insertion. -json.exception.invalid_iterator.203 | iterators do not fit current value | Either iterator passed to function @ref erase(IteratorType first, IteratorType last) does not belong to the JSON value from which values shall be erased. It hence does not define a valid range to delete values from. -json.exception.invalid_iterator.204 | iterators out of range | When an iterator range for a primitive type (number, boolean, or string) is passed to a constructor or an erase function, this range has to be exactly (@ref begin(), @ref end()), because this is the only way the single stored value is expressed. All other ranges are invalid. -json.exception.invalid_iterator.205 | iterator out of range | When an iterator for a primitive type (number, boolean, or string) is passed to an erase function, the iterator has to be the @ref begin() iterator, because it is the only way to address the stored value. All other iterators are invalid. -json.exception.invalid_iterator.206 | cannot construct with iterators from null | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) belong to a JSON null value and hence to not define a valid range. -json.exception.invalid_iterator.207 | cannot use key() for non-object iterators | The key() member function can only be used on iterators belonging to a JSON object, because other types do not have a concept of a key. -json.exception.invalid_iterator.208 | cannot use operator[] for object iterators | The operator[] to specify a concrete offset cannot be used on iterators belonging to a JSON object, because JSON objects are unordered. -json.exception.invalid_iterator.209 | cannot use offsets with object iterators | The offset operators (+, -, +=, -=) cannot be used on iterators belonging to a JSON object, because JSON objects are unordered. -json.exception.invalid_iterator.210 | iterators do not fit | The iterator range passed to the insert function are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid. -json.exception.invalid_iterator.211 | passed iterators may not belong to container | The iterator range passed to the insert function must not be a subrange of the container to insert to. -json.exception.invalid_iterator.212 | cannot compare iterators of different containers | When two iterators are compared, they must belong to the same container. -json.exception.invalid_iterator.213 | cannot compare order of object iterators | The order of object iterators cannot be compared, because JSON objects are unordered. -json.exception.invalid_iterator.214 | cannot get value | Cannot get value for iterator: Either the iterator belongs to a null value or it is an iterator to a primitive type (number, boolean, or string), but the iterator is different to @ref begin(). - -@liveexample{The following code shows how an `invalid_iterator` exception can be -caught.,invalid_iterator} - -@sa - @ref exception for the base class of the library exceptions -@sa - @ref parse_error for exceptions indicating a parse error -@sa - @ref type_error for exceptions indicating executing a member function with - a wrong type -@sa - @ref out_of_range for exceptions indicating access out of the defined range -@sa - @ref other_error for exceptions indicating other library errors - -@since version 3.0.0 -*/ -class invalid_iterator : public exception -{ - public: - template - static invalid_iterator create(int id_, const std::string& what_arg, const BasicJsonType& context) - { - std::string w = exception::name("invalid_iterator", id_) + exception::diagnostics(context) + what_arg; - return invalid_iterator(id_, w.c_str()); - } - - private: - JSON_HEDLEY_NON_NULL(3) - invalid_iterator(int id_, const char* what_arg) - : exception(id_, what_arg) {} -}; - -/*! -@brief exception indicating executing a member function with a wrong type - -This exception is thrown in case of a type error; that is, a library function is -executed on a JSON value whose type does not match the expected semantics. - -Exceptions have ids 3xx. - -name / id | example message | description ------------------------------ | --------------- | ------------------------- -json.exception.type_error.301 | cannot create object from initializer list | To create an object from an initializer list, the initializer list must consist only of a list of pairs whose first element is a string. When this constraint is violated, an array is created instead. -json.exception.type_error.302 | type must be object, but is array | During implicit or explicit value conversion, the JSON type must be compatible to the target type. For instance, a JSON string can only be converted into string types, but not into numbers or boolean types. -json.exception.type_error.303 | incompatible ReferenceType for get_ref, actual type is object | To retrieve a reference to a value stored in a @ref basic_json object with @ref get_ref, the type of the reference must match the value type. For instance, for a JSON array, the @a ReferenceType must be @ref array_t &. -json.exception.type_error.304 | cannot use at() with string | The @ref at() member functions can only be executed for certain JSON types. -json.exception.type_error.305 | cannot use operator[] with string | The @ref operator[] member functions can only be executed for certain JSON types. -json.exception.type_error.306 | cannot use value() with string | The @ref value() member functions can only be executed for certain JSON types. -json.exception.type_error.307 | cannot use erase() with string | The @ref erase() member functions can only be executed for certain JSON types. -json.exception.type_error.308 | cannot use push_back() with string | The @ref push_back() and @ref operator+= member functions can only be executed for certain JSON types. -json.exception.type_error.309 | cannot use insert() with | The @ref insert() member functions can only be executed for certain JSON types. -json.exception.type_error.310 | cannot use swap() with number | The @ref swap() member functions can only be executed for certain JSON types. -json.exception.type_error.311 | cannot use emplace_back() with string | The @ref emplace_back() member function can only be executed for certain JSON types. -json.exception.type_error.312 | cannot use update() with string | The @ref update() member functions can only be executed for certain JSON types. -json.exception.type_error.313 | invalid value to unflatten | The @ref unflatten function converts an object whose keys are JSON Pointers back into an arbitrary nested JSON value. The JSON Pointers must not overlap, because then the resulting value would not be well defined. -json.exception.type_error.314 | only objects can be unflattened | The @ref unflatten function only works for an object whose keys are JSON Pointers. -json.exception.type_error.315 | values in object must be primitive | The @ref unflatten function only works for an object whose keys are JSON Pointers and whose values are primitive. -json.exception.type_error.316 | invalid UTF-8 byte at index 10: 0x7E | The @ref dump function only works with UTF-8 encoded strings; that is, if you assign a `std::string` to a JSON value, make sure it is UTF-8 encoded. | -json.exception.type_error.317 | JSON value cannot be serialized to requested format | The dynamic type of the object cannot be represented in the requested serialization format (e.g. a raw `true` or `null` JSON object cannot be serialized to BSON) | - -@liveexample{The following code shows how a `type_error` exception can be -caught.,type_error} - -@sa - @ref exception for the base class of the library exceptions -@sa - @ref parse_error for exceptions indicating a parse error -@sa - @ref invalid_iterator for exceptions indicating errors with iterators -@sa - @ref out_of_range for exceptions indicating access out of the defined range -@sa - @ref other_error for exceptions indicating other library errors - -@since version 3.0.0 -*/ -class type_error : public exception -{ - public: - template - static type_error create(int id_, const std::string& what_arg, const BasicJsonType& context) - { - std::string w = exception::name("type_error", id_) + exception::diagnostics(context) + what_arg; - return type_error(id_, w.c_str()); - } - - private: - JSON_HEDLEY_NON_NULL(3) - type_error(int id_, const char* what_arg) : exception(id_, what_arg) {} -}; - -/*! -@brief exception indicating access out of the defined range - -This exception is thrown in case a library function is called on an input -parameter that exceeds the expected range, for instance in case of array -indices or nonexisting object keys. - -Exceptions have ids 4xx. - -name / id | example message | description -------------------------------- | --------------- | ------------------------- -json.exception.out_of_range.401 | array index 3 is out of range | The provided array index @a i is larger than @a size-1. -json.exception.out_of_range.402 | array index '-' (3) is out of range | The special array index `-` in a JSON Pointer never describes a valid element of the array, but the index past the end. That is, it can only be used to add elements at this position, but not to read it. -json.exception.out_of_range.403 | key 'foo' not found | The provided key was not found in the JSON object. -json.exception.out_of_range.404 | unresolved reference token 'foo' | A reference token in a JSON Pointer could not be resolved. -json.exception.out_of_range.405 | JSON pointer has no parent | The JSON Patch operations 'remove' and 'add' can not be applied to the root element of the JSON value. -json.exception.out_of_range.406 | number overflow parsing '10E1000' | A parsed number could not be stored as without changing it to NaN or INF. -json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON and BSON only support integer numbers up to 9223372036854775807. (until version 3.8.0) | -json.exception.out_of_range.408 | excessive array size: 8658170730974374167 | The size (following `#`) of an UBJSON array or object exceeds the maximal capacity. | -json.exception.out_of_range.409 | BSON key cannot contain code point U+0000 (at byte 2) | Key identifiers to be serialized to BSON cannot contain code point U+0000, since the key is stored as zero-terminated c-string | - -@liveexample{The following code shows how an `out_of_range` exception can be -caught.,out_of_range} - -@sa - @ref exception for the base class of the library exceptions -@sa - @ref parse_error for exceptions indicating a parse error -@sa - @ref invalid_iterator for exceptions indicating errors with iterators -@sa - @ref type_error for exceptions indicating executing a member function with - a wrong type -@sa - @ref other_error for exceptions indicating other library errors - -@since version 3.0.0 -*/ -class out_of_range : public exception -{ - public: - template - static out_of_range create(int id_, const std::string& what_arg, const BasicJsonType& context) - { - std::string w = exception::name("out_of_range", id_) + exception::diagnostics(context) + what_arg; - return out_of_range(id_, w.c_str()); - } - - private: - JSON_HEDLEY_NON_NULL(3) - out_of_range(int id_, const char* what_arg) : exception(id_, what_arg) {} -}; - -/*! -@brief exception indicating other library errors - -This exception is thrown in case of errors that cannot be classified with the -other exception types. - -Exceptions have ids 5xx. - -name / id | example message | description ------------------------------- | --------------- | ------------------------- -json.exception.other_error.501 | unsuccessful: {"op":"test","path":"/baz", "value":"bar"} | A JSON Patch operation 'test' failed. The unsuccessful operation is also printed. - -@sa - @ref exception for the base class of the library exceptions -@sa - @ref parse_error for exceptions indicating a parse error -@sa - @ref invalid_iterator for exceptions indicating errors with iterators -@sa - @ref type_error for exceptions indicating executing a member function with - a wrong type -@sa - @ref out_of_range for exceptions indicating access out of the defined range - -@liveexample{The following code shows how an `other_error` exception can be -caught.,other_error} - -@since version 3.0.0 -*/ -class other_error : public exception -{ - public: - template - static other_error create(int id_, const std::string& what_arg, const BasicJsonType& context) - { - std::string w = exception::name("other_error", id_) + exception::diagnostics(context) + what_arg; - return other_error(id_, w.c_str()); - } - - private: - JSON_HEDLEY_NON_NULL(3) - other_error(int id_, const char* what_arg) : exception(id_, what_arg) {} -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - - -#include // size_t -#include // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type -#include // index_sequence, make_index_sequence, index_sequence_for - -// #include - - -namespace nlohmann -{ -namespace detail -{ - -template -using uncvref_t = typename std::remove_cv::type>::type; - -#ifdef JSON_HAS_CPP_14 - -// the following utilities are natively available in C++14 -using std::enable_if_t; -using std::index_sequence; -using std::make_index_sequence; -using std::index_sequence_for; - -#else - -// alias templates to reduce boilerplate -template -using enable_if_t = typename std::enable_if::type; - -// The following code is taken from https://github.com/abseil/abseil-cpp/blob/10cb35e459f5ecca5b2ff107635da0bfa41011b4/absl/utility/utility.h -// which is part of Google Abseil (https://github.com/abseil/abseil-cpp), licensed under the Apache License 2.0. - -//// START OF CODE FROM GOOGLE ABSEIL - -// integer_sequence -// -// Class template representing a compile-time integer sequence. An instantiation -// of `integer_sequence` has a sequence of integers encoded in its -// type through its template arguments (which is a common need when -// working with C++11 variadic templates). `absl::integer_sequence` is designed -// to be a drop-in replacement for C++14's `std::integer_sequence`. -// -// Example: -// -// template< class T, T... Ints > -// void user_function(integer_sequence); -// -// int main() -// { -// // user_function's `T` will be deduced to `int` and `Ints...` -// // will be deduced to `0, 1, 2, 3, 4`. -// user_function(make_integer_sequence()); -// } -template -struct integer_sequence -{ - using value_type = T; - static constexpr std::size_t size() noexcept - { - return sizeof...(Ints); - } -}; - -// index_sequence -// -// A helper template for an `integer_sequence` of `size_t`, -// `absl::index_sequence` is designed to be a drop-in replacement for C++14's -// `std::index_sequence`. -template -using index_sequence = integer_sequence; - -namespace utility_internal -{ - -template -struct Extend; - -// Note that SeqSize == sizeof...(Ints). It's passed explicitly for efficiency. -template -struct Extend, SeqSize, 0> -{ - using type = integer_sequence < T, Ints..., (Ints + SeqSize)... >; -}; - -template -struct Extend, SeqSize, 1> -{ - using type = integer_sequence < T, Ints..., (Ints + SeqSize)..., 2 * SeqSize >; -}; - -// Recursion helper for 'make_integer_sequence'. -// 'Gen::type' is an alias for 'integer_sequence'. -template -struct Gen -{ - using type = - typename Extend < typename Gen < T, N / 2 >::type, N / 2, N % 2 >::type; -}; - -template -struct Gen -{ - using type = integer_sequence; -}; - -} // namespace utility_internal - -// Compile-time sequences of integers - -// make_integer_sequence -// -// This template alias is equivalent to -// `integer_sequence`, and is designed to be a drop-in -// replacement for C++14's `std::make_integer_sequence`. -template -using make_integer_sequence = typename utility_internal::Gen::type; - -// make_index_sequence -// -// This template alias is equivalent to `index_sequence<0, 1, ..., N-1>`, -// and is designed to be a drop-in replacement for C++14's -// `std::make_index_sequence`. -template -using make_index_sequence = make_integer_sequence; - -// index_sequence_for -// -// Converts a typename pack into an index sequence of the same length, and -// is designed to be a drop-in replacement for C++14's -// `std::index_sequence_for()` -template -using index_sequence_for = make_index_sequence; - -//// END OF CODE FROM GOOGLE ABSEIL - -#endif - -// dispatch utility (taken from ranges-v3) -template struct priority_tag : priority_tag < N - 1 > {}; -template<> struct priority_tag<0> {}; - -// taken from ranges-v3 -template -struct static_const -{ - static constexpr T value{}; -}; - -template -constexpr T static_const::value; - -} // namespace detail -} // namespace nlohmann - -// #include - - -namespace nlohmann -{ -namespace detail -{ -// dispatching helper struct -template struct identity_tag {}; -} // namespace detail -} // namespace nlohmann - -// #include - - -#include // numeric_limits -#include // false_type, is_constructible, is_integral, is_same, true_type -#include // declval -#include // tuple - -// #include - - -#include // random_access_iterator_tag - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template struct make_void -{ - using type = void; -}; -template using void_t = typename make_void::type; -} // namespace detail -} // namespace nlohmann - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template -struct iterator_types {}; - -template -struct iterator_types < - It, - void_t> -{ - using difference_type = typename It::difference_type; - using value_type = typename It::value_type; - using pointer = typename It::pointer; - using reference = typename It::reference; - using iterator_category = typename It::iterator_category; -}; - -// This is required as some compilers implement std::iterator_traits in a way that -// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341. -template -struct iterator_traits -{ -}; - -template -struct iterator_traits < T, enable_if_t < !std::is_pointer::value >> - : iterator_types -{ -}; - -template -struct iterator_traits::value>> -{ - using iterator_category = std::random_access_iterator_tag; - using value_type = T; - using difference_type = ptrdiff_t; - using pointer = T*; - using reference = T&; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - -// #include - - -#include - -// #include - - -// https://en.cppreference.com/w/cpp/experimental/is_detected -namespace nlohmann -{ -namespace detail -{ -struct nonesuch -{ - nonesuch() = delete; - ~nonesuch() = delete; - nonesuch(nonesuch const&) = delete; - nonesuch(nonesuch const&&) = delete; - void operator=(nonesuch const&) = delete; - void operator=(nonesuch&&) = delete; -}; - -template class Op, - class... Args> -struct detector -{ - using value_t = std::false_type; - using type = Default; -}; - -template class Op, class... Args> -struct detector>, Op, Args...> -{ - using value_t = std::true_type; - using type = Op; -}; - -template class Op, class... Args> -using is_detected = typename detector::value_t; - -template class Op, class... Args> -struct is_detected_lazy : is_detected { }; - -template class Op, class... Args> -using detected_t = typename detector::type; - -template class Op, class... Args> -using detected_or = detector; - -template class Op, class... Args> -using detected_or_t = typename detected_or::type; - -template class Op, class... Args> -using is_detected_exact = std::is_same>; - -template class Op, class... Args> -using is_detected_convertible = - std::is_convertible, To>; -} // namespace detail -} // namespace nlohmann - -// #include -#ifndef INCLUDE_NLOHMANN_JSON_FWD_HPP_ -#define INCLUDE_NLOHMANN_JSON_FWD_HPP_ - -#include // int64_t, uint64_t -#include // map -#include // allocator -#include // string -#include // vector - -/*! -@brief namespace for Niels Lohmann -@see https://github.com/nlohmann -@since version 1.0.0 -*/ -namespace nlohmann -{ -/*! -@brief default JSONSerializer template argument - -This serializer ignores the template arguments and uses ADL -([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl)) -for serialization. -*/ -template -struct adl_serializer; - -template class ObjectType = - std::map, - template class ArrayType = std::vector, - class StringType = std::string, class BooleanType = bool, - class NumberIntegerType = std::int64_t, - class NumberUnsignedType = std::uint64_t, - class NumberFloatType = double, - template class AllocatorType = std::allocator, - template class JSONSerializer = - adl_serializer, - class BinaryType = std::vector> -class basic_json; - -/*! -@brief JSON Pointer - -A JSON pointer defines a string syntax for identifying a specific value -within a JSON document. It can be used with functions `at` and -`operator[]`. Furthermore, JSON pointers are the base for JSON patches. - -@sa [RFC 6901](https://tools.ietf.org/html/rfc6901) - -@since version 2.0.0 -*/ -template -class json_pointer; - -/*! -@brief default JSON class - -This type is the default specialization of the @ref basic_json class which -uses the standard template types. - -@since version 1.0.0 -*/ -using json = basic_json<>; - -template -struct ordered_map; - -/*! -@brief ordered JSON class - -This type preserves the insertion order of object keys. - -@since version 3.9.0 -*/ -using ordered_json = basic_json; - -} // namespace nlohmann - -#endif // INCLUDE_NLOHMANN_JSON_FWD_HPP_ - - -namespace nlohmann -{ -/*! -@brief detail namespace with internal helper functions - -This namespace collects functions that should not be exposed, -implementations of some @ref basic_json methods, and meta-programming helpers. - -@since version 2.1.0 -*/ -namespace detail -{ -///////////// -// helpers // -///////////// - -// Note to maintainers: -// -// Every trait in this file expects a non CV-qualified type. -// The only exceptions are in the 'aliases for detected' section -// (i.e. those of the form: decltype(T::member_function(std::declval()))) -// -// In this case, T has to be properly CV-qualified to constraint the function arguments -// (e.g. to_json(BasicJsonType&, const T&)) - -template struct is_basic_json : std::false_type {}; - -NLOHMANN_BASIC_JSON_TPL_DECLARATION -struct is_basic_json : std::true_type {}; - -////////////////////// -// json_ref helpers // -////////////////////// - -template -class json_ref; - -template -struct is_json_ref : std::false_type {}; - -template -struct is_json_ref> : std::true_type {}; - -////////////////////////// -// aliases for detected // -////////////////////////// - -template -using mapped_type_t = typename T::mapped_type; - -template -using key_type_t = typename T::key_type; - -template -using value_type_t = typename T::value_type; - -template -using difference_type_t = typename T::difference_type; - -template -using pointer_t = typename T::pointer; - -template -using reference_t = typename T::reference; - -template -using iterator_category_t = typename T::iterator_category; - -template -using iterator_t = typename T::iterator; - -template -using to_json_function = decltype(T::to_json(std::declval()...)); - -template -using from_json_function = decltype(T::from_json(std::declval()...)); - -template -using get_template_function = decltype(std::declval().template get()); - -// trait checking if JSONSerializer::from_json(json const&, udt&) exists -template -struct has_from_json : std::false_type {}; - -// trait checking if j.get is valid -// use this trait instead of std::is_constructible or std::is_convertible, -// both rely on, or make use of implicit conversions, and thus fail when T -// has several constructors/operator= (see https://github.com/nlohmann/json/issues/958) -template -struct is_getable -{ - static constexpr bool value = is_detected::value; -}; - -template -struct has_from_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> -{ - using serializer = typename BasicJsonType::template json_serializer; - - static constexpr bool value = - is_detected_exact::value; -}; - -// This trait checks if JSONSerializer::from_json(json const&) exists -// this overload is used for non-default-constructible user-defined-types -template -struct has_non_default_from_json : std::false_type {}; - -template -struct has_non_default_from_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> -{ - using serializer = typename BasicJsonType::template json_serializer; - - static constexpr bool value = - is_detected_exact::value; -}; - -// This trait checks if BasicJsonType::json_serializer::to_json exists -// Do not evaluate the trait when T is a basic_json type, to avoid template instantiation infinite recursion. -template -struct has_to_json : std::false_type {}; - -template -struct has_to_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> -{ - using serializer = typename BasicJsonType::template json_serializer; - - static constexpr bool value = - is_detected_exact::value; -}; - - -/////////////////// -// is_ functions // -/////////////////// - -// https://en.cppreference.com/w/cpp/types/conjunction -template struct conjunction : std::true_type { }; -template struct conjunction : B1 { }; -template -struct conjunction -: std::conditional, B1>::type {}; - -// https://en.cppreference.com/w/cpp/types/negation -template struct negation : std::integral_constant < bool, !B::value > { }; - -// Reimplementation of is_constructible and is_default_constructible, due to them being broken for -// std::pair and std::tuple until LWG 2367 fix (see https://cplusplus.github.io/LWG/lwg-defects.html#2367). -// This causes compile errors in e.g. clang 3.5 or gcc 4.9. -template -struct is_default_constructible : std::is_default_constructible {}; - -template -struct is_default_constructible> - : conjunction, is_default_constructible> {}; - -template -struct is_default_constructible> - : conjunction, is_default_constructible> {}; - -template -struct is_default_constructible> - : conjunction...> {}; - -template -struct is_default_constructible> - : conjunction...> {}; - - -template -struct is_constructible : std::is_constructible {}; - -template -struct is_constructible> : is_default_constructible> {}; - -template -struct is_constructible> : is_default_constructible> {}; - -template -struct is_constructible> : is_default_constructible> {}; - -template -struct is_constructible> : is_default_constructible> {}; - - -template -struct is_iterator_traits : std::false_type {}; - -template -struct is_iterator_traits> -{ - private: - using traits = iterator_traits; - - public: - static constexpr auto value = - is_detected::value && - is_detected::value && - is_detected::value && - is_detected::value && - is_detected::value; -}; - -// The following implementation of is_complete_type is taken from -// https://blogs.msdn.microsoft.com/vcblog/2015/12/02/partial-support-for-expression-sfinae-in-vs-2015-update-1/ -// and is written by Xiang Fan who agreed to using it in this library. - -template -struct is_complete_type : std::false_type {}; - -template -struct is_complete_type : std::true_type {}; - -template -struct is_compatible_object_type_impl : std::false_type {}; - -template -struct is_compatible_object_type_impl < - BasicJsonType, CompatibleObjectType, - enable_if_t < is_detected::value&& - is_detected::value >> -{ - using object_t = typename BasicJsonType::object_t; - - // macOS's is_constructible does not play well with nonesuch... - static constexpr bool value = - is_constructible::value && - is_constructible::value; -}; - -template -struct is_compatible_object_type - : is_compatible_object_type_impl {}; - -template -struct is_constructible_object_type_impl : std::false_type {}; - -template -struct is_constructible_object_type_impl < - BasicJsonType, ConstructibleObjectType, - enable_if_t < is_detected::value&& - is_detected::value >> -{ - using object_t = typename BasicJsonType::object_t; - - static constexpr bool value = - (is_default_constructible::value && - (std::is_move_assignable::value || - std::is_copy_assignable::value) && - (is_constructible::value && - std::is_same < - typename object_t::mapped_type, - typename ConstructibleObjectType::mapped_type >::value)) || - (has_from_json::value || - has_non_default_from_json < - BasicJsonType, - typename ConstructibleObjectType::mapped_type >::value); -}; - -template -struct is_constructible_object_type - : is_constructible_object_type_impl {}; - -template -struct is_compatible_string_type_impl : std::false_type {}; - -template -struct is_compatible_string_type_impl < - BasicJsonType, CompatibleStringType, - enable_if_t::value >> -{ - static constexpr auto value = - is_constructible::value; -}; - -template -struct is_compatible_string_type - : is_compatible_string_type_impl {}; - -template -struct is_constructible_string_type_impl : std::false_type {}; - -template -struct is_constructible_string_type_impl < - BasicJsonType, ConstructibleStringType, - enable_if_t::value >> -{ - static constexpr auto value = - is_constructible::value; -}; - -template -struct is_constructible_string_type - : is_constructible_string_type_impl {}; - -template -struct is_compatible_array_type_impl : std::false_type {}; - -template -struct is_compatible_array_type_impl < - BasicJsonType, CompatibleArrayType, - enable_if_t < is_detected::value&& - is_detected::value&& -// This is needed because json_reverse_iterator has a ::iterator type... -// Therefore it is detected as a CompatibleArrayType. -// The real fix would be to have an Iterable concept. - !is_iterator_traits < - iterator_traits>::value >> -{ - static constexpr bool value = - is_constructible::value; -}; - -template -struct is_compatible_array_type - : is_compatible_array_type_impl {}; - -template -struct is_constructible_array_type_impl : std::false_type {}; - -template -struct is_constructible_array_type_impl < - BasicJsonType, ConstructibleArrayType, - enable_if_t::value >> - : std::true_type {}; - -template -struct is_constructible_array_type_impl < - BasicJsonType, ConstructibleArrayType, - enable_if_t < !std::is_same::value&& - is_default_constructible::value&& -(std::is_move_assignable::value || - std::is_copy_assignable::value)&& -is_detected::value&& -is_detected::value&& -is_complete_type < -detected_t>::value >> -{ - static constexpr bool value = - // This is needed because json_reverse_iterator has a ::iterator type, - // furthermore, std::back_insert_iterator (and other iterators) have a - // base class `iterator`... Therefore it is detected as a - // ConstructibleArrayType. The real fix would be to have an Iterable - // concept. - !is_iterator_traits>::value && - - (std::is_same::value || - has_from_json::value || - has_non_default_from_json < - BasicJsonType, typename ConstructibleArrayType::value_type >::value); -}; - -template -struct is_constructible_array_type - : is_constructible_array_type_impl {}; - -template -struct is_compatible_integer_type_impl : std::false_type {}; - -template -struct is_compatible_integer_type_impl < - RealIntegerType, CompatibleNumberIntegerType, - enable_if_t < std::is_integral::value&& - std::is_integral::value&& - !std::is_same::value >> -{ - // is there an assert somewhere on overflows? - using RealLimits = std::numeric_limits; - using CompatibleLimits = std::numeric_limits; - - static constexpr auto value = - is_constructible::value && - CompatibleLimits::is_integer && - RealLimits::is_signed == CompatibleLimits::is_signed; -}; - -template -struct is_compatible_integer_type - : is_compatible_integer_type_impl {}; - -template -struct is_compatible_type_impl: std::false_type {}; - -template -struct is_compatible_type_impl < - BasicJsonType, CompatibleType, - enable_if_t::value >> -{ - static constexpr bool value = - has_to_json::value; -}; - -template -struct is_compatible_type - : is_compatible_type_impl {}; - -template -struct is_constructible_tuple : std::false_type {}; - -template -struct is_constructible_tuple> : conjunction...> {}; - -// to avoid useless casts (see https://github.com/nlohmann/json/issues/2893#issuecomment-889152324) -template < typename T, typename U, enable_if_t < !std::is_same::value, int > = 0 > -T conditional_static_cast(U value) -{ - return static_cast(value); -} - -template::value, int> = 0> -T conditional_static_cast(U value) -{ - return value; -} - -} // namespace detail -} // namespace nlohmann - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template -void from_json(const BasicJsonType& j, typename std::nullptr_t& n) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_null())) - { - JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name()), j)); - } - n = nullptr; -} - -// overloads for basic_json template parameters -template < typename BasicJsonType, typename ArithmeticType, - enable_if_t < std::is_arithmetic::value&& - !std::is_same::value, - int > = 0 > -void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) -{ - switch (static_cast(j)) - { - case value_t::number_unsigned: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::number_integer: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::number_float: - { - val = static_cast(*j.template get_ptr()); - break; - } - - case value_t::null: - case value_t::object: - case value_t::array: - case value_t::string: - case value_t::boolean: - case value_t::binary: - case value_t::discarded: - default: - JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j)); - } -} - -template -void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_boolean())) - { - JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(j.type_name()), j)); - } - b = *j.template get_ptr(); -} - -template -void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_string())) - { - JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); - } - s = *j.template get_ptr(); -} - -template < - typename BasicJsonType, typename ConstructibleStringType, - enable_if_t < - is_constructible_string_type::value&& - !std::is_same::value, - int > = 0 > -void from_json(const BasicJsonType& j, ConstructibleStringType& s) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_string())) - { - JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); - } - - s = *j.template get_ptr(); -} - -template -void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val) -{ - get_arithmetic_value(j, val); -} - -template -void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val) -{ - get_arithmetic_value(j, val); -} - -template -void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val) -{ - get_arithmetic_value(j, val); -} - -template::value, int> = 0> -void from_json(const BasicJsonType& j, EnumType& e) -{ - typename std::underlying_type::type val; - get_arithmetic_value(j, val); - e = static_cast(val); -} - -// forward_list doesn't have an insert method -template::value, int> = 0> -void from_json(const BasicJsonType& j, std::forward_list& l) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - l.clear(); - std::transform(j.rbegin(), j.rend(), - std::front_inserter(l), [](const BasicJsonType & i) - { - return i.template get(); - }); -} - -// valarray doesn't have an insert method -template::value, int> = 0> -void from_json(const BasicJsonType& j, std::valarray& l) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - l.resize(j.size()); - std::transform(j.begin(), j.end(), std::begin(l), - [](const BasicJsonType & elem) - { - return elem.template get(); - }); -} - -template -auto from_json(const BasicJsonType& j, T (&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) --> decltype(j.template get(), void()) -{ - for (std::size_t i = 0; i < N; ++i) - { - arr[i] = j.at(i).template get(); - } -} - -template -void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/) -{ - arr = *j.template get_ptr(); -} - -template -auto from_json_array_impl(const BasicJsonType& j, std::array& arr, - priority_tag<2> /*unused*/) --> decltype(j.template get(), void()) -{ - for (std::size_t i = 0; i < N; ++i) - { - arr[i] = j.at(i).template get(); - } -} - -template::value, - int> = 0> -auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/) --> decltype( - arr.reserve(std::declval()), - j.template get(), - void()) -{ - using std::end; - - ConstructibleArrayType ret; - ret.reserve(j.size()); - std::transform(j.begin(), j.end(), - std::inserter(ret, end(ret)), [](const BasicJsonType & i) - { - // get() returns *this, this won't call a from_json - // method when value_type is BasicJsonType - return i.template get(); - }); - arr = std::move(ret); -} - -template::value, - int> = 0> -void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, - priority_tag<0> /*unused*/) -{ - using std::end; - - ConstructibleArrayType ret; - std::transform( - j.begin(), j.end(), std::inserter(ret, end(ret)), - [](const BasicJsonType & i) - { - // get() returns *this, this won't call a from_json - // method when value_type is BasicJsonType - return i.template get(); - }); - arr = std::move(ret); -} - -template < typename BasicJsonType, typename ConstructibleArrayType, - enable_if_t < - is_constructible_array_type::value&& - !is_constructible_object_type::value&& - !is_constructible_string_type::value&& - !std::is_same::value&& - !is_basic_json::value, - int > = 0 > -auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr) --> decltype(from_json_array_impl(j, arr, priority_tag<3> {}), -j.template get(), -void()) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - - from_json_array_impl(j, arr, priority_tag<3> {}); -} - -template < typename BasicJsonType, typename T, std::size_t... Idx > -std::array from_json_inplace_array_impl(BasicJsonType&& j, - identity_tag> /*unused*/, index_sequence /*unused*/) -{ - return { { std::forward(j).at(Idx).template get()... } }; -} - -template < typename BasicJsonType, typename T, std::size_t N > -auto from_json(BasicJsonType&& j, identity_tag> tag) --> decltype(from_json_inplace_array_impl(std::forward(j), tag, make_index_sequence {})) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - - return from_json_inplace_array_impl(std::forward(j), tag, make_index_sequence {}); -} - -template -void from_json(const BasicJsonType& j, typename BasicJsonType::binary_t& bin) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_binary())) - { - JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(j.type_name()), j)); - } - - bin = *j.template get_ptr(); -} - -template::value, int> = 0> -void from_json(const BasicJsonType& j, ConstructibleObjectType& obj) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_object())) - { - JSON_THROW(type_error::create(302, "type must be object, but is " + std::string(j.type_name()), j)); - } - - ConstructibleObjectType ret; - const auto* inner_object = j.template get_ptr(); - using value_type = typename ConstructibleObjectType::value_type; - std::transform( - inner_object->begin(), inner_object->end(), - std::inserter(ret, ret.begin()), - [](typename BasicJsonType::object_t::value_type const & p) - { - return value_type(p.first, p.second.template get()); - }); - obj = std::move(ret); -} - -// overload for arithmetic types, not chosen for basic_json template arguments -// (BooleanType, etc..); note: Is it really necessary to provide explicit -// overloads for boolean_t etc. in case of a custom BooleanType which is not -// an arithmetic type? -template < typename BasicJsonType, typename ArithmeticType, - enable_if_t < - std::is_arithmetic::value&& - !std::is_same::value&& - !std::is_same::value&& - !std::is_same::value&& - !std::is_same::value, - int > = 0 > -void from_json(const BasicJsonType& j, ArithmeticType& val) -{ - switch (static_cast(j)) - { - case value_t::number_unsigned: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::number_integer: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::number_float: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::boolean: - { - val = static_cast(*j.template get_ptr()); - break; - } - - case value_t::null: - case value_t::object: - case value_t::array: - case value_t::string: - case value_t::binary: - case value_t::discarded: - default: - JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j)); - } -} - -template -std::tuple from_json_tuple_impl_base(BasicJsonType&& j, index_sequence /*unused*/) -{ - return std::make_tuple(std::forward(j).at(Idx).template get()...); -} - -template < typename BasicJsonType, class A1, class A2 > -std::pair from_json_tuple_impl(BasicJsonType&& j, identity_tag> /*unused*/, priority_tag<0> /*unused*/) -{ - return {std::forward(j).at(0).template get(), - std::forward(j).at(1).template get()}; -} - -template -void from_json_tuple_impl(BasicJsonType&& j, std::pair& p, priority_tag<1> /*unused*/) -{ - p = from_json_tuple_impl(std::forward(j), identity_tag> {}, priority_tag<0> {}); -} - -template -std::tuple from_json_tuple_impl(BasicJsonType&& j, identity_tag> /*unused*/, priority_tag<2> /*unused*/) -{ - return from_json_tuple_impl_base(std::forward(j), index_sequence_for {}); -} - -template -void from_json_tuple_impl(BasicJsonType&& j, std::tuple& t, priority_tag<3> /*unused*/) -{ - t = from_json_tuple_impl_base(std::forward(j), index_sequence_for {}); -} - -template -auto from_json(BasicJsonType&& j, TupleRelated&& t) --> decltype(from_json_tuple_impl(std::forward(j), std::forward(t), priority_tag<3> {})) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - - return from_json_tuple_impl(std::forward(j), std::forward(t), priority_tag<3> {}); -} - -template < typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator, - typename = enable_if_t < !std::is_constructible < - typename BasicJsonType::string_t, Key >::value >> -void from_json(const BasicJsonType& j, std::map& m) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - m.clear(); - for (const auto& p : j) - { - if (JSON_HEDLEY_UNLIKELY(!p.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j)); - } - m.emplace(p.at(0).template get(), p.at(1).template get()); - } -} - -template < typename BasicJsonType, typename Key, typename Value, typename Hash, typename KeyEqual, typename Allocator, - typename = enable_if_t < !std::is_constructible < - typename BasicJsonType::string_t, Key >::value >> -void from_json(const BasicJsonType& j, std::unordered_map& m) -{ - if (JSON_HEDLEY_UNLIKELY(!j.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); - } - m.clear(); - for (const auto& p : j) - { - if (JSON_HEDLEY_UNLIKELY(!p.is_array())) - { - JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j)); - } - m.emplace(p.at(0).template get(), p.at(1).template get()); - } -} - -struct from_json_fn -{ - template - auto operator()(const BasicJsonType& j, T&& val) const - noexcept(noexcept(from_json(j, std::forward(val)))) - -> decltype(from_json(j, std::forward(val))) - { - return from_json(j, std::forward(val)); - } -}; -} // namespace detail - -/// namespace to hold default `from_json` function -/// to see why this is required: -/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html -namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces) -{ -constexpr const auto& from_json = detail::static_const::value; // NOLINT(misc-definitions-in-headers) -} // namespace -} // namespace nlohmann - -// #include - - -#include // copy -#include // begin, end -#include // string -#include // tuple, get -#include // is_same, is_constructible, is_floating_point, is_enum, underlying_type -#include // move, forward, declval, pair -#include // valarray -#include // vector - -// #include - - -#include // size_t -#include // input_iterator_tag -#include // string, to_string -#include // tuple_size, get, tuple_element -#include // move - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template -void int_to_string( string_type& target, std::size_t value ) -{ - // For ADL - using std::to_string; - target = to_string(value); -} -template class iteration_proxy_value -{ - public: - using difference_type = std::ptrdiff_t; - using value_type = iteration_proxy_value; - using pointer = value_type * ; - using reference = value_type & ; - using iterator_category = std::input_iterator_tag; - using string_type = typename std::remove_cv< typename std::remove_reference().key() ) >::type >::type; - - private: - /// the iterator - IteratorType anchor; - /// an index for arrays (used to create key names) - std::size_t array_index = 0; - /// last stringified array index - mutable std::size_t array_index_last = 0; - /// a string representation of the array index - mutable string_type array_index_str = "0"; - /// an empty string (to return a reference for primitive values) - const string_type empty_str{}; - - public: - explicit iteration_proxy_value(IteratorType it) noexcept - : anchor(std::move(it)) - {} - - /// dereference operator (needed for range-based for) - iteration_proxy_value& operator*() - { - return *this; - } - - /// increment operator (needed for range-based for) - iteration_proxy_value& operator++() - { - ++anchor; - ++array_index; - - return *this; - } - - /// equality operator (needed for InputIterator) - bool operator==(const iteration_proxy_value& o) const - { - return anchor == o.anchor; - } - - /// inequality operator (needed for range-based for) - bool operator!=(const iteration_proxy_value& o) const - { - return anchor != o.anchor; - } - - /// return key of the iterator - const string_type& key() const - { - JSON_ASSERT(anchor.m_object != nullptr); - - switch (anchor.m_object->type()) - { - // use integer array index as key - case value_t::array: - { - if (array_index != array_index_last) - { - int_to_string( array_index_str, array_index ); - array_index_last = array_index; - } - return array_index_str; - } - - // use key from the object - case value_t::object: - return anchor.key(); - - // use an empty key for all primitive types - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - return empty_str; - } - } - - /// return value of the iterator - typename IteratorType::reference value() const - { - return anchor.value(); - } -}; - -/// proxy class for the items() function -template class iteration_proxy -{ - private: - /// the container to iterate - typename IteratorType::reference container; - - public: - /// construct iteration proxy from a container - explicit iteration_proxy(typename IteratorType::reference cont) noexcept - : container(cont) {} - - /// return iterator begin (needed for range-based for) - iteration_proxy_value begin() noexcept - { - return iteration_proxy_value(container.begin()); - } - - /// return iterator end (needed for range-based for) - iteration_proxy_value end() noexcept - { - return iteration_proxy_value(container.end()); - } -}; -// Structured Bindings Support -// For further reference see https://blog.tartanllama.xyz/structured-bindings/ -// And see https://github.com/nlohmann/json/pull/1391 -template = 0> -auto get(const nlohmann::detail::iteration_proxy_value& i) -> decltype(i.key()) -{ - return i.key(); -} -// Structured Bindings Support -// For further reference see https://blog.tartanllama.xyz/structured-bindings/ -// And see https://github.com/nlohmann/json/pull/1391 -template = 0> -auto get(const nlohmann::detail::iteration_proxy_value& i) -> decltype(i.value()) -{ - return i.value(); -} -} // namespace detail -} // namespace nlohmann - -// The Addition to the STD Namespace is required to add -// Structured Bindings Support to the iteration_proxy_value class -// For further reference see https://blog.tartanllama.xyz/structured-bindings/ -// And see https://github.com/nlohmann/json/pull/1391 -namespace std -{ -#if defined(__clang__) - // Fix: https://github.com/nlohmann/json/issues/1401 - #pragma clang diagnostic push - #pragma clang diagnostic ignored "-Wmismatched-tags" -#endif -template -class tuple_size<::nlohmann::detail::iteration_proxy_value> - : public std::integral_constant {}; - -template -class tuple_element> -{ - public: - using type = decltype( - get(std::declval < - ::nlohmann::detail::iteration_proxy_value> ())); -}; -#if defined(__clang__) - #pragma clang diagnostic pop -#endif -} // namespace std - -// #include - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -////////////////// -// constructors // -////////////////// - -/* - * Note all external_constructor<>::construct functions need to call - * j.m_value.destroy(j.m_type) to avoid a memory leak in case j contains an - * allocated value (e.g., a string). See bug issue - * https://github.com/nlohmann/json/issues/2865 for more information. - */ - -template struct external_constructor; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::boolean; - j.m_value = b; - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::string; - j.m_value = s; - j.assert_invariant(); - } - - template - static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::string; - j.m_value = std::move(s); - j.assert_invariant(); - } - - template < typename BasicJsonType, typename CompatibleStringType, - enable_if_t < !std::is_same::value, - int > = 0 > - static void construct(BasicJsonType& j, const CompatibleStringType& str) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::string; - j.m_value.string = j.template create(str); - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::binary_t& b) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::binary; - j.m_value = typename BasicJsonType::binary_t(b); - j.assert_invariant(); - } - - template - static void construct(BasicJsonType& j, typename BasicJsonType::binary_t&& b) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::binary; - j.m_value = typename BasicJsonType::binary_t(std::move(b));; - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::number_float; - j.m_value = val; - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::number_unsigned; - j.m_value = val; - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::number_integer; - j.m_value = val; - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::array; - j.m_value = arr; - j.set_parents(); - j.assert_invariant(); - } - - template - static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::array; - j.m_value = std::move(arr); - j.set_parents(); - j.assert_invariant(); - } - - template < typename BasicJsonType, typename CompatibleArrayType, - enable_if_t < !std::is_same::value, - int > = 0 > - static void construct(BasicJsonType& j, const CompatibleArrayType& arr) - { - using std::begin; - using std::end; - - j.m_value.destroy(j.m_type); - j.m_type = value_t::array; - j.m_value.array = j.template create(begin(arr), end(arr)); - j.set_parents(); - j.assert_invariant(); - } - - template - static void construct(BasicJsonType& j, const std::vector& arr) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::array; - j.m_value = value_t::array; - j.m_value.array->reserve(arr.size()); - for (const bool x : arr) - { - j.m_value.array->push_back(x); - j.set_parent(j.m_value.array->back()); - } - j.assert_invariant(); - } - - template::value, int> = 0> - static void construct(BasicJsonType& j, const std::valarray& arr) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::array; - j.m_value = value_t::array; - j.m_value.array->resize(arr.size()); - if (arr.size() > 0) - { - std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin()); - } - j.set_parents(); - j.assert_invariant(); - } -}; - -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::object; - j.m_value = obj; - j.set_parents(); - j.assert_invariant(); - } - - template - static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj) - { - j.m_value.destroy(j.m_type); - j.m_type = value_t::object; - j.m_value = std::move(obj); - j.set_parents(); - j.assert_invariant(); - } - - template < typename BasicJsonType, typename CompatibleObjectType, - enable_if_t < !std::is_same::value, int > = 0 > - static void construct(BasicJsonType& j, const CompatibleObjectType& obj) - { - using std::begin; - using std::end; - - j.m_value.destroy(j.m_type); - j.m_type = value_t::object; - j.m_value.object = j.template create(begin(obj), end(obj)); - j.set_parents(); - j.assert_invariant(); - } -}; - -///////////// -// to_json // -///////////// - -template::value, int> = 0> -void to_json(BasicJsonType& j, T b) noexcept -{ - external_constructor::construct(j, b); -} - -template::value, int> = 0> -void to_json(BasicJsonType& j, const CompatibleString& s) -{ - external_constructor::construct(j, s); -} - -template -void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s) -{ - external_constructor::construct(j, std::move(s)); -} - -template::value, int> = 0> -void to_json(BasicJsonType& j, FloatType val) noexcept -{ - external_constructor::construct(j, static_cast(val)); -} - -template::value, int> = 0> -void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept -{ - external_constructor::construct(j, static_cast(val)); -} - -template::value, int> = 0> -void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept -{ - external_constructor::construct(j, static_cast(val)); -} - -template::value, int> = 0> -void to_json(BasicJsonType& j, EnumType e) noexcept -{ - using underlying_type = typename std::underlying_type::type; - external_constructor::construct(j, static_cast(e)); -} - -template -void to_json(BasicJsonType& j, const std::vector& e) -{ - external_constructor::construct(j, e); -} - -template < typename BasicJsonType, typename CompatibleArrayType, - enable_if_t < is_compatible_array_type::value&& - !is_compatible_object_type::value&& - !is_compatible_string_type::value&& - !std::is_same::value&& - !is_basic_json::value, - int > = 0 > -void to_json(BasicJsonType& j, const CompatibleArrayType& arr) -{ - external_constructor::construct(j, arr); -} - -template -void to_json(BasicJsonType& j, const typename BasicJsonType::binary_t& bin) -{ - external_constructor::construct(j, bin); -} - -template::value, int> = 0> -void to_json(BasicJsonType& j, const std::valarray& arr) -{ - external_constructor::construct(j, std::move(arr)); -} - -template -void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr) -{ - external_constructor::construct(j, std::move(arr)); -} - -template < typename BasicJsonType, typename CompatibleObjectType, - enable_if_t < is_compatible_object_type::value&& !is_basic_json::value, int > = 0 > -void to_json(BasicJsonType& j, const CompatibleObjectType& obj) -{ - external_constructor::construct(j, obj); -} - -template -void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj) -{ - external_constructor::construct(j, std::move(obj)); -} - -template < - typename BasicJsonType, typename T, std::size_t N, - enable_if_t < !std::is_constructible::value, // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) - int > = 0 > -void to_json(BasicJsonType& j, const T(&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) -{ - external_constructor::construct(j, arr); -} - -template < typename BasicJsonType, typename T1, typename T2, enable_if_t < std::is_constructible::value&& std::is_constructible::value, int > = 0 > -void to_json(BasicJsonType& j, const std::pair& p) -{ - j = { p.first, p.second }; -} - -// for https://github.com/nlohmann/json/pull/1134 -template>::value, int> = 0> -void to_json(BasicJsonType& j, const T& b) -{ - j = { {b.key(), b.value()} }; -} - -template -void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence /*unused*/) -{ - j = { std::get(t)... }; -} - -template::value, int > = 0> -void to_json(BasicJsonType& j, const T& t) -{ - to_json_tuple_impl(j, t, make_index_sequence::value> {}); -} - -struct to_json_fn -{ - template - auto operator()(BasicJsonType& j, T&& val) const noexcept(noexcept(to_json(j, std::forward(val)))) - -> decltype(to_json(j, std::forward(val)), void()) - { - return to_json(j, std::forward(val)); - } -}; -} // namespace detail - -/// namespace to hold default `to_json` function -/// to see why this is required: -/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html -namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces) -{ -constexpr const auto& to_json = detail::static_const::value; // NOLINT(misc-definitions-in-headers) -} // namespace -} // namespace nlohmann - -// #include - -// #include - - -namespace nlohmann -{ - -template -struct adl_serializer -{ - /*! - @brief convert a JSON value to any value type - - This function is usually called by the `get()` function of the - @ref basic_json class (either explicit or via conversion operators). - - @note This function is chosen for default-constructible value types. - - @param[in] j JSON value to read from - @param[in,out] val value to write to - */ - template - static auto from_json(BasicJsonType && j, TargetType& val) noexcept( - noexcept(::nlohmann::from_json(std::forward(j), val))) - -> decltype(::nlohmann::from_json(std::forward(j), val), void()) - { - ::nlohmann::from_json(std::forward(j), val); - } - - /*! - @brief convert a JSON value to any value type - - This function is usually called by the `get()` function of the - @ref basic_json class (either explicit or via conversion operators). - - @note This function is chosen for value types which are not default-constructible. - - @param[in] j JSON value to read from - - @return copy of the JSON value, converted to @a ValueType - */ - template - static auto from_json(BasicJsonType && j) noexcept( - noexcept(::nlohmann::from_json(std::forward(j), detail::identity_tag {}))) - -> decltype(::nlohmann::from_json(std::forward(j), detail::identity_tag {})) - { - return ::nlohmann::from_json(std::forward(j), detail::identity_tag {}); - } - - /*! - @brief convert any value type to a JSON value - - This function is usually called by the constructors of the @ref basic_json - class. - - @param[in,out] j JSON value to write to - @param[in] val value to read from - */ - template - static auto to_json(BasicJsonType& j, TargetType && val) noexcept( - noexcept(::nlohmann::to_json(j, std::forward(val)))) - -> decltype(::nlohmann::to_json(j, std::forward(val)), void()) - { - ::nlohmann::to_json(j, std::forward(val)); - } -}; -} // namespace nlohmann - -// #include - - -#include // uint8_t, uint64_t -#include // tie -#include // move - -namespace nlohmann -{ - -/*! -@brief an internal type for a backed binary type - -This type extends the template parameter @a BinaryType provided to `basic_json` -with a subtype used by BSON and MessagePack. This type exists so that the user -does not have to specify a type themselves with a specific naming scheme in -order to override the binary type. - -@tparam BinaryType container to store bytes (`std::vector` by - default) - -@since version 3.8.0; changed type of subtypes to std::uint64_t in 3.10.0. -*/ -template -class byte_container_with_subtype : public BinaryType -{ - public: - /// the type of the underlying container - using container_type = BinaryType; - /// the type of the subtype - using subtype_type = std::uint64_t; - - byte_container_with_subtype() noexcept(noexcept(container_type())) - : container_type() - {} - - byte_container_with_subtype(const container_type& b) noexcept(noexcept(container_type(b))) - : container_type(b) - {} - - byte_container_with_subtype(container_type&& b) noexcept(noexcept(container_type(std::move(b)))) - : container_type(std::move(b)) - {} - - byte_container_with_subtype(const container_type& b, subtype_type subtype_) noexcept(noexcept(container_type(b))) - : container_type(b) - , m_subtype(subtype_) - , m_has_subtype(true) - {} - - byte_container_with_subtype(container_type&& b, subtype_type subtype_) noexcept(noexcept(container_type(std::move(b)))) - : container_type(std::move(b)) - , m_subtype(subtype_) - , m_has_subtype(true) - {} - - bool operator==(const byte_container_with_subtype& rhs) const - { - return std::tie(static_cast(*this), m_subtype, m_has_subtype) == - std::tie(static_cast(rhs), rhs.m_subtype, rhs.m_has_subtype); - } - - bool operator!=(const byte_container_with_subtype& rhs) const - { - return !(rhs == *this); - } - - /*! - @brief sets the binary subtype - - Sets the binary subtype of the value, also flags a binary JSON value as - having a subtype, which has implications for serialization. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @sa see @ref subtype() -- return the binary subtype - @sa see @ref clear_subtype() -- clears the binary subtype - @sa see @ref has_subtype() -- returns whether or not the binary value has a - subtype - - @since version 3.8.0 - */ - void set_subtype(subtype_type subtype_) noexcept - { - m_subtype = subtype_; - m_has_subtype = true; - } - - /*! - @brief return the binary subtype - - Returns the numerical subtype of the value if it has a subtype. If it does - not have a subtype, this function will return subtype_type(-1) as a sentinel - value. - - @return the numerical subtype of the binary value - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @sa see @ref set_subtype() -- sets the binary subtype - @sa see @ref clear_subtype() -- clears the binary subtype - @sa see @ref has_subtype() -- returns whether or not the binary value has a - subtype - - @since version 3.8.0; fixed return value to properly return - subtype_type(-1) as documented in version 3.10.0 - */ - constexpr subtype_type subtype() const noexcept - { - return m_has_subtype ? m_subtype : subtype_type(-1); - } - - /*! - @brief return whether the value has a subtype - - @return whether the value has a subtype - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @sa see @ref subtype() -- return the binary subtype - @sa see @ref set_subtype() -- sets the binary subtype - @sa see @ref clear_subtype() -- clears the binary subtype - - @since version 3.8.0 - */ - constexpr bool has_subtype() const noexcept - { - return m_has_subtype; - } - - /*! - @brief clears the binary subtype - - Clears the binary subtype and flags the value as not having a subtype, which - has implications for serialization; for instance MessagePack will prefer the - bin family over the ext family. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @sa see @ref subtype() -- return the binary subtype - @sa see @ref set_subtype() -- sets the binary subtype - @sa see @ref has_subtype() -- returns whether or not the binary value has a - subtype - - @since version 3.8.0 - */ - void clear_subtype() noexcept - { - m_subtype = 0; - m_has_subtype = false; - } - - private: - subtype_type m_subtype = 0; - bool m_has_subtype = false; -}; - -} // namespace nlohmann - -// #include - -// #include - -// #include - -// #include - - -#include // uint8_t -#include // size_t -#include // hash - -// #include - - -namespace nlohmann -{ -namespace detail -{ - -// boost::hash_combine -inline std::size_t combine(std::size_t seed, std::size_t h) noexcept -{ - seed ^= h + 0x9e3779b9 + (seed << 6U) + (seed >> 2U); - return seed; -} - -/*! -@brief hash a JSON value - -The hash function tries to rely on std::hash where possible. Furthermore, the -type of the JSON value is taken into account to have different hash values for -null, 0, 0U, and false, etc. - -@tparam BasicJsonType basic_json specialization -@param j JSON value to hash -@return hash value of j -*/ -template -std::size_t hash(const BasicJsonType& j) -{ - using string_t = typename BasicJsonType::string_t; - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - - const auto type = static_cast(j.type()); - switch (j.type()) - { - case BasicJsonType::value_t::null: - case BasicJsonType::value_t::discarded: - { - return combine(type, 0); - } - - case BasicJsonType::value_t::object: - { - auto seed = combine(type, j.size()); - for (const auto& element : j.items()) - { - const auto h = std::hash {}(element.key()); - seed = combine(seed, h); - seed = combine(seed, hash(element.value())); - } - return seed; - } - - case BasicJsonType::value_t::array: - { - auto seed = combine(type, j.size()); - for (const auto& element : j) - { - seed = combine(seed, hash(element)); - } - return seed; - } - - case BasicJsonType::value_t::string: - { - const auto h = std::hash {}(j.template get_ref()); - return combine(type, h); - } - - case BasicJsonType::value_t::boolean: - { - const auto h = std::hash {}(j.template get()); - return combine(type, h); - } - - case BasicJsonType::value_t::number_integer: - { - const auto h = std::hash {}(j.template get()); - return combine(type, h); - } - - case BasicJsonType::value_t::number_unsigned: - { - const auto h = std::hash {}(j.template get()); - return combine(type, h); - } - - case BasicJsonType::value_t::number_float: - { - const auto h = std::hash {}(j.template get()); - return combine(type, h); - } - - case BasicJsonType::value_t::binary: - { - auto seed = combine(type, j.get_binary().size()); - const auto h = std::hash {}(j.get_binary().has_subtype()); - seed = combine(seed, h); - seed = combine(seed, static_cast(j.get_binary().subtype())); - for (const auto byte : j.get_binary()) - { - seed = combine(seed, std::hash {}(byte)); - } - return seed; - } - - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - return 0; // LCOV_EXCL_LINE - } -} - -} // namespace detail -} // namespace nlohmann - -// #include - - -#include // generate_n -#include // array -#include // ldexp -#include // size_t -#include // uint8_t, uint16_t, uint32_t, uint64_t -#include // snprintf -#include // memcpy -#include // back_inserter -#include // numeric_limits -#include // char_traits, string -#include // make_pair, move -#include // vector - -// #include - -// #include - - -#include // array -#include // size_t -#include // strlen -#include // begin, end, iterator_traits, random_access_iterator_tag, distance, next -#include // shared_ptr, make_shared, addressof -#include // accumulate -#include // string, char_traits -#include // enable_if, is_base_of, is_pointer, is_integral, remove_pointer -#include // pair, declval - -#ifndef JSON_NO_IO - #include // FILE * - #include // istream -#endif // JSON_NO_IO - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -/// the supported input formats -enum class input_format_t { json, cbor, msgpack, ubjson, bson }; - -//////////////////// -// input adapters // -//////////////////// - -#ifndef JSON_NO_IO -/*! -Input adapter for stdio file access. This adapter read only 1 byte and do not use any - buffer. This adapter is a very low level adapter. -*/ -class file_input_adapter -{ - public: - using char_type = char; - - JSON_HEDLEY_NON_NULL(2) - explicit file_input_adapter(std::FILE* f) noexcept - : m_file(f) - {} - - // make class move-only - file_input_adapter(const file_input_adapter&) = delete; - file_input_adapter(file_input_adapter&&) noexcept = default; - file_input_adapter& operator=(const file_input_adapter&) = delete; - file_input_adapter& operator=(file_input_adapter&&) = delete; - ~file_input_adapter() = default; - - std::char_traits::int_type get_character() noexcept - { - return std::fgetc(m_file); - } - - private: - /// the file pointer to read from - std::FILE* m_file; -}; - - -/*! -Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at -beginning of input. Does not support changing the underlying std::streambuf -in mid-input. Maintains underlying std::istream and std::streambuf to support -subsequent use of standard std::istream operations to process any input -characters following those used in parsing the JSON input. Clears the -std::istream flags; any input errors (e.g., EOF) will be detected by the first -subsequent call for input from the std::istream. -*/ -class input_stream_adapter -{ - public: - using char_type = char; - - ~input_stream_adapter() - { - // clear stream flags; we use underlying streambuf I/O, do not - // maintain ifstream flags, except eof - if (is != nullptr) - { - is->clear(is->rdstate() & std::ios::eofbit); - } - } - - explicit input_stream_adapter(std::istream& i) - : is(&i), sb(i.rdbuf()) - {} - - // delete because of pointer members - input_stream_adapter(const input_stream_adapter&) = delete; - input_stream_adapter& operator=(input_stream_adapter&) = delete; - input_stream_adapter& operator=(input_stream_adapter&&) = delete; - - input_stream_adapter(input_stream_adapter&& rhs) noexcept - : is(rhs.is), sb(rhs.sb) - { - rhs.is = nullptr; - rhs.sb = nullptr; - } - - // std::istream/std::streambuf use std::char_traits::to_int_type, to - // ensure that std::char_traits::eof() and the character 0xFF do not - // end up as the same value, eg. 0xFFFFFFFF. - std::char_traits::int_type get_character() - { - auto res = sb->sbumpc(); - // set eof manually, as we don't use the istream interface. - if (JSON_HEDLEY_UNLIKELY(res == std::char_traits::eof())) - { - is->clear(is->rdstate() | std::ios::eofbit); - } - return res; - } - - private: - /// the associated input stream - std::istream* is = nullptr; - std::streambuf* sb = nullptr; -}; -#endif // JSON_NO_IO - -// General-purpose iterator-based adapter. It might not be as fast as -// theoretically possible for some containers, but it is extremely versatile. -template -class iterator_input_adapter -{ - public: - using char_type = typename std::iterator_traits::value_type; - - iterator_input_adapter(IteratorType first, IteratorType last) - : current(std::move(first)), end(std::move(last)) - {} - - typename std::char_traits::int_type get_character() - { - if (JSON_HEDLEY_LIKELY(current != end)) - { - auto result = std::char_traits::to_int_type(*current); - std::advance(current, 1); - return result; - } - - return std::char_traits::eof(); - } - - private: - IteratorType current; - IteratorType end; - - template - friend struct wide_string_input_helper; - - bool empty() const - { - return current == end; - } -}; - - -template -struct wide_string_input_helper; - -template -struct wide_string_input_helper -{ - // UTF-32 - static void fill_buffer(BaseInputAdapter& input, - std::array::int_type, 4>& utf8_bytes, - size_t& utf8_bytes_index, - size_t& utf8_bytes_filled) - { - utf8_bytes_index = 0; - - if (JSON_HEDLEY_UNLIKELY(input.empty())) - { - utf8_bytes[0] = std::char_traits::eof(); - utf8_bytes_filled = 1; - } - else - { - // get the current character - const auto wc = input.get_character(); - - // UTF-32 to UTF-8 encoding - if (wc < 0x80) - { - utf8_bytes[0] = static_cast::int_type>(wc); - utf8_bytes_filled = 1; - } - else if (wc <= 0x7FF) - { - utf8_bytes[0] = static_cast::int_type>(0xC0u | ((static_cast(wc) >> 6u) & 0x1Fu)); - utf8_bytes[1] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); - utf8_bytes_filled = 2; - } - else if (wc <= 0xFFFF) - { - utf8_bytes[0] = static_cast::int_type>(0xE0u | ((static_cast(wc) >> 12u) & 0x0Fu)); - utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); - utf8_bytes[2] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); - utf8_bytes_filled = 3; - } - else if (wc <= 0x10FFFF) - { - utf8_bytes[0] = static_cast::int_type>(0xF0u | ((static_cast(wc) >> 18u) & 0x07u)); - utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 12u) & 0x3Fu)); - utf8_bytes[2] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); - utf8_bytes[3] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); - utf8_bytes_filled = 4; - } - else - { - // unknown character - utf8_bytes[0] = static_cast::int_type>(wc); - utf8_bytes_filled = 1; - } - } - } -}; - -template -struct wide_string_input_helper -{ - // UTF-16 - static void fill_buffer(BaseInputAdapter& input, - std::array::int_type, 4>& utf8_bytes, - size_t& utf8_bytes_index, - size_t& utf8_bytes_filled) - { - utf8_bytes_index = 0; - - if (JSON_HEDLEY_UNLIKELY(input.empty())) - { - utf8_bytes[0] = std::char_traits::eof(); - utf8_bytes_filled = 1; - } - else - { - // get the current character - const auto wc = input.get_character(); - - // UTF-16 to UTF-8 encoding - if (wc < 0x80) - { - utf8_bytes[0] = static_cast::int_type>(wc); - utf8_bytes_filled = 1; - } - else if (wc <= 0x7FF) - { - utf8_bytes[0] = static_cast::int_type>(0xC0u | ((static_cast(wc) >> 6u))); - utf8_bytes[1] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); - utf8_bytes_filled = 2; - } - else if (0xD800 > wc || wc >= 0xE000) - { - utf8_bytes[0] = static_cast::int_type>(0xE0u | ((static_cast(wc) >> 12u))); - utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); - utf8_bytes[2] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); - utf8_bytes_filled = 3; - } - else - { - if (JSON_HEDLEY_UNLIKELY(!input.empty())) - { - const auto wc2 = static_cast(input.get_character()); - const auto charcode = 0x10000u + (((static_cast(wc) & 0x3FFu) << 10u) | (wc2 & 0x3FFu)); - utf8_bytes[0] = static_cast::int_type>(0xF0u | (charcode >> 18u)); - utf8_bytes[1] = static_cast::int_type>(0x80u | ((charcode >> 12u) & 0x3Fu)); - utf8_bytes[2] = static_cast::int_type>(0x80u | ((charcode >> 6u) & 0x3Fu)); - utf8_bytes[3] = static_cast::int_type>(0x80u | (charcode & 0x3Fu)); - utf8_bytes_filled = 4; - } - else - { - utf8_bytes[0] = static_cast::int_type>(wc); - utf8_bytes_filled = 1; - } - } - } - } -}; - -// Wraps another input apdater to convert wide character types into individual bytes. -template -class wide_string_input_adapter -{ - public: - using char_type = char; - - wide_string_input_adapter(BaseInputAdapter base) - : base_adapter(base) {} - - typename std::char_traits::int_type get_character() noexcept - { - // check if buffer needs to be filled - if (utf8_bytes_index == utf8_bytes_filled) - { - fill_buffer(); - - JSON_ASSERT(utf8_bytes_filled > 0); - JSON_ASSERT(utf8_bytes_index == 0); - } - - // use buffer - JSON_ASSERT(utf8_bytes_filled > 0); - JSON_ASSERT(utf8_bytes_index < utf8_bytes_filled); - return utf8_bytes[utf8_bytes_index++]; - } - - private: - BaseInputAdapter base_adapter; - - template - void fill_buffer() - { - wide_string_input_helper::fill_buffer(base_adapter, utf8_bytes, utf8_bytes_index, utf8_bytes_filled); - } - - /// a buffer for UTF-8 bytes - std::array::int_type, 4> utf8_bytes = {{0, 0, 0, 0}}; - - /// index to the utf8_codes array for the next valid byte - std::size_t utf8_bytes_index = 0; - /// number of valid bytes in the utf8_codes array - std::size_t utf8_bytes_filled = 0; -}; - - -template -struct iterator_input_adapter_factory -{ - using iterator_type = IteratorType; - using char_type = typename std::iterator_traits::value_type; - using adapter_type = iterator_input_adapter; - - static adapter_type create(IteratorType first, IteratorType last) - { - return adapter_type(std::move(first), std::move(last)); - } -}; - -template -struct is_iterator_of_multibyte -{ - using value_type = typename std::iterator_traits::value_type; - enum - { - value = sizeof(value_type) > 1 - }; -}; - -template -struct iterator_input_adapter_factory::value>> -{ - using iterator_type = IteratorType; - using char_type = typename std::iterator_traits::value_type; - using base_adapter_type = iterator_input_adapter; - using adapter_type = wide_string_input_adapter; - - static adapter_type create(IteratorType first, IteratorType last) - { - return adapter_type(base_adapter_type(std::move(first), std::move(last))); - } -}; - -// General purpose iterator-based input -template -typename iterator_input_adapter_factory::adapter_type input_adapter(IteratorType first, IteratorType last) -{ - using factory_type = iterator_input_adapter_factory; - return factory_type::create(first, last); -} - -// Convenience shorthand from container to iterator -// Enables ADL on begin(container) and end(container) -// Encloses the using declarations in namespace for not to leak them to outside scope - -namespace container_input_adapter_factory_impl -{ - -using std::begin; -using std::end; - -template -struct container_input_adapter_factory {}; - -template -struct container_input_adapter_factory< ContainerType, - void_t()), end(std::declval()))>> - { - using adapter_type = decltype(input_adapter(begin(std::declval()), end(std::declval()))); - - static adapter_type create(const ContainerType& container) -{ - return input_adapter(begin(container), end(container)); -} - }; - -} // namespace container_input_adapter_factory_impl - -template -typename container_input_adapter_factory_impl::container_input_adapter_factory::adapter_type input_adapter(const ContainerType& container) -{ - return container_input_adapter_factory_impl::container_input_adapter_factory::create(container); -} - -#ifndef JSON_NO_IO -// Special cases with fast paths -inline file_input_adapter input_adapter(std::FILE* file) -{ - return file_input_adapter(file); -} - -inline input_stream_adapter input_adapter(std::istream& stream) -{ - return input_stream_adapter(stream); -} - -inline input_stream_adapter input_adapter(std::istream&& stream) -{ - return input_stream_adapter(stream); -} -#endif // JSON_NO_IO - -using contiguous_bytes_input_adapter = decltype(input_adapter(std::declval(), std::declval())); - -// Null-delimited strings, and the like. -template < typename CharT, - typename std::enable_if < - std::is_pointer::value&& - !std::is_array::value&& - std::is_integral::type>::value&& - sizeof(typename std::remove_pointer::type) == 1, - int >::type = 0 > -contiguous_bytes_input_adapter input_adapter(CharT b) -{ - auto length = std::strlen(reinterpret_cast(b)); - const auto* ptr = reinterpret_cast(b); - return input_adapter(ptr, ptr + length); -} - -template -auto input_adapter(T (&array)[N]) -> decltype(input_adapter(array, array + N)) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) -{ - return input_adapter(array, array + N); -} - -// This class only handles inputs of input_buffer_adapter type. -// It's required so that expressions like {ptr, len} can be implicitely casted -// to the correct adapter. -class span_input_adapter -{ - public: - template < typename CharT, - typename std::enable_if < - std::is_pointer::value&& - std::is_integral::type>::value&& - sizeof(typename std::remove_pointer::type) == 1, - int >::type = 0 > - span_input_adapter(CharT b, std::size_t l) - : ia(reinterpret_cast(b), reinterpret_cast(b) + l) {} - - template::iterator_category, std::random_access_iterator_tag>::value, - int>::type = 0> - span_input_adapter(IteratorType first, IteratorType last) - : ia(input_adapter(first, last)) {} - - contiguous_bytes_input_adapter&& get() - { - return std::move(ia); // NOLINT(hicpp-move-const-arg,performance-move-const-arg) - } - - private: - contiguous_bytes_input_adapter ia; -}; -} // namespace detail -} // namespace nlohmann - -// #include - - -#include -#include // string -#include // move -#include // vector - -// #include - -// #include - - -namespace nlohmann -{ - -/*! -@brief SAX interface - -This class describes the SAX interface used by @ref nlohmann::json::sax_parse. -Each function is called in different situations while the input is parsed. The -boolean return value informs the parser whether to continue processing the -input. -*/ -template -struct json_sax -{ - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - - /*! - @brief a null value was read - @return whether parsing should proceed - */ - virtual bool null() = 0; - - /*! - @brief a boolean value was read - @param[in] val boolean value - @return whether parsing should proceed - */ - virtual bool boolean(bool val) = 0; - - /*! - @brief an integer number was read - @param[in] val integer value - @return whether parsing should proceed - */ - virtual bool number_integer(number_integer_t val) = 0; - - /*! - @brief an unsigned integer number was read - @param[in] val unsigned integer value - @return whether parsing should proceed - */ - virtual bool number_unsigned(number_unsigned_t val) = 0; - - /*! - @brief an floating-point number was read - @param[in] val floating-point value - @param[in] s raw token value - @return whether parsing should proceed - */ - virtual bool number_float(number_float_t val, const string_t& s) = 0; - - /*! - @brief a string was read - @param[in] val string value - @return whether parsing should proceed - @note It is safe to move the passed string. - */ - virtual bool string(string_t& val) = 0; - - /*! - @brief a binary string was read - @param[in] val binary value - @return whether parsing should proceed - @note It is safe to move the passed binary. - */ - virtual bool binary(binary_t& val) = 0; - - /*! - @brief the beginning of an object was read - @param[in] elements number of object elements or -1 if unknown - @return whether parsing should proceed - @note binary formats may report the number of elements - */ - virtual bool start_object(std::size_t elements) = 0; - - /*! - @brief an object key was read - @param[in] val object key - @return whether parsing should proceed - @note It is safe to move the passed string. - */ - virtual bool key(string_t& val) = 0; - - /*! - @brief the end of an object was read - @return whether parsing should proceed - */ - virtual bool end_object() = 0; - - /*! - @brief the beginning of an array was read - @param[in] elements number of array elements or -1 if unknown - @return whether parsing should proceed - @note binary formats may report the number of elements - */ - virtual bool start_array(std::size_t elements) = 0; - - /*! - @brief the end of an array was read - @return whether parsing should proceed - */ - virtual bool end_array() = 0; - - /*! - @brief a parse error occurred - @param[in] position the position in the input where the error occurs - @param[in] last_token the last read token - @param[in] ex an exception object describing the error - @return whether parsing should proceed (must return false) - */ - virtual bool parse_error(std::size_t position, - const std::string& last_token, - const detail::exception& ex) = 0; - - json_sax() = default; - json_sax(const json_sax&) = default; - json_sax(json_sax&&) noexcept = default; - json_sax& operator=(const json_sax&) = default; - json_sax& operator=(json_sax&&) noexcept = default; - virtual ~json_sax() = default; -}; - - -namespace detail -{ -/*! -@brief SAX implementation to create a JSON value from SAX events - -This class implements the @ref json_sax interface and processes the SAX events -to create a JSON value which makes it basically a DOM parser. The structure or -hierarchy of the JSON value is managed by the stack `ref_stack` which contains -a pointer to the respective array or object for each recursion depth. - -After successful parsing, the value that is passed by reference to the -constructor contains the parsed value. - -@tparam BasicJsonType the JSON type -*/ -template -class json_sax_dom_parser -{ - public: - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - - /*! - @param[in,out] r reference to a JSON value that is manipulated while - parsing - @param[in] allow_exceptions_ whether parse errors yield exceptions - */ - explicit json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true) - : root(r), allow_exceptions(allow_exceptions_) - {} - - // make class move-only - json_sax_dom_parser(const json_sax_dom_parser&) = delete; - json_sax_dom_parser(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - json_sax_dom_parser& operator=(const json_sax_dom_parser&) = delete; - json_sax_dom_parser& operator=(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - ~json_sax_dom_parser() = default; - - bool null() - { - handle_value(nullptr); - return true; - } - - bool boolean(bool val) - { - handle_value(val); - return true; - } - - bool number_integer(number_integer_t val) - { - handle_value(val); - return true; - } - - bool number_unsigned(number_unsigned_t val) - { - handle_value(val); - return true; - } - - bool number_float(number_float_t val, const string_t& /*unused*/) - { - handle_value(val); - return true; - } - - bool string(string_t& val) - { - handle_value(val); - return true; - } - - bool binary(binary_t& val) - { - handle_value(std::move(val)); - return true; - } - - bool start_object(std::size_t len) - { - ref_stack.push_back(handle_value(BasicJsonType::value_t::object)); - - if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) - { - JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back())); - } - - return true; - } - - bool key(string_t& val) - { - // add null at given key and store the reference for later - object_element = &(ref_stack.back()->m_value.object->operator[](val)); - return true; - } - - bool end_object() - { - ref_stack.back()->set_parents(); - ref_stack.pop_back(); - return true; - } - - bool start_array(std::size_t len) - { - ref_stack.push_back(handle_value(BasicJsonType::value_t::array)); - - if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) - { - JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back())); - } - - return true; - } - - bool end_array() - { - ref_stack.back()->set_parents(); - ref_stack.pop_back(); - return true; - } - - template - bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, - const Exception& ex) - { - errored = true; - static_cast(ex); - if (allow_exceptions) - { - JSON_THROW(ex); - } - return false; - } - - constexpr bool is_errored() const - { - return errored; - } - - private: - /*! - @invariant If the ref stack is empty, then the passed value will be the new - root. - @invariant If the ref stack contains a value, then it is an array or an - object to which we can add elements - */ - template - JSON_HEDLEY_RETURNS_NON_NULL - BasicJsonType* handle_value(Value&& v) - { - if (ref_stack.empty()) - { - root = BasicJsonType(std::forward(v)); - return &root; - } - - JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object()); - - if (ref_stack.back()->is_array()) - { - ref_stack.back()->m_value.array->emplace_back(std::forward(v)); - return &(ref_stack.back()->m_value.array->back()); - } - - JSON_ASSERT(ref_stack.back()->is_object()); - JSON_ASSERT(object_element); - *object_element = BasicJsonType(std::forward(v)); - return object_element; - } - - /// the parsed JSON value - BasicJsonType& root; - /// stack to model hierarchy of values - std::vector ref_stack {}; - /// helper to hold the reference for the next object element - BasicJsonType* object_element = nullptr; - /// whether a syntax error occurred - bool errored = false; - /// whether to throw exceptions in case of errors - const bool allow_exceptions = true; -}; - -template -class json_sax_dom_callback_parser -{ - public: - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - using parser_callback_t = typename BasicJsonType::parser_callback_t; - using parse_event_t = typename BasicJsonType::parse_event_t; - - json_sax_dom_callback_parser(BasicJsonType& r, - const parser_callback_t cb, - const bool allow_exceptions_ = true) - : root(r), callback(cb), allow_exceptions(allow_exceptions_) - { - keep_stack.push_back(true); - } - - // make class move-only - json_sax_dom_callback_parser(const json_sax_dom_callback_parser&) = delete; - json_sax_dom_callback_parser(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - json_sax_dom_callback_parser& operator=(const json_sax_dom_callback_parser&) = delete; - json_sax_dom_callback_parser& operator=(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - ~json_sax_dom_callback_parser() = default; - - bool null() - { - handle_value(nullptr); - return true; - } - - bool boolean(bool val) - { - handle_value(val); - return true; - } - - bool number_integer(number_integer_t val) - { - handle_value(val); - return true; - } - - bool number_unsigned(number_unsigned_t val) - { - handle_value(val); - return true; - } - - bool number_float(number_float_t val, const string_t& /*unused*/) - { - handle_value(val); - return true; - } - - bool string(string_t& val) - { - handle_value(val); - return true; - } - - bool binary(binary_t& val) - { - handle_value(std::move(val)); - return true; - } - - bool start_object(std::size_t len) - { - // check callback for object start - const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::object_start, discarded); - keep_stack.push_back(keep); - - auto val = handle_value(BasicJsonType::value_t::object, true); - ref_stack.push_back(val.second); - - // check object limit - if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) - { - JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back())); - } - - return true; - } - - bool key(string_t& val) - { - BasicJsonType k = BasicJsonType(val); - - // check callback for key - const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::key, k); - key_keep_stack.push_back(keep); - - // add discarded value at given key and store the reference for later - if (keep && ref_stack.back()) - { - object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded); - } - - return true; - } - - bool end_object() - { - if (ref_stack.back()) - { - if (!callback(static_cast(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back())) - { - // discard object - *ref_stack.back() = discarded; - } - else - { - ref_stack.back()->set_parents(); - } - } - - JSON_ASSERT(!ref_stack.empty()); - JSON_ASSERT(!keep_stack.empty()); - ref_stack.pop_back(); - keep_stack.pop_back(); - - if (!ref_stack.empty() && ref_stack.back() && ref_stack.back()->is_structured()) - { - // remove discarded value - for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it) - { - if (it->is_discarded()) - { - ref_stack.back()->erase(it); - break; - } - } - } - - return true; - } - - bool start_array(std::size_t len) - { - const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::array_start, discarded); - keep_stack.push_back(keep); - - auto val = handle_value(BasicJsonType::value_t::array, true); - ref_stack.push_back(val.second); - - // check array limit - if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) - { - JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back())); - } - - return true; - } - - bool end_array() - { - bool keep = true; - - if (ref_stack.back()) - { - keep = callback(static_cast(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back()); - if (keep) - { - ref_stack.back()->set_parents(); - } - else - { - // discard array - *ref_stack.back() = discarded; - } - } - - JSON_ASSERT(!ref_stack.empty()); - JSON_ASSERT(!keep_stack.empty()); - ref_stack.pop_back(); - keep_stack.pop_back(); - - // remove discarded value - if (!keep && !ref_stack.empty() && ref_stack.back()->is_array()) - { - ref_stack.back()->m_value.array->pop_back(); - } - - return true; - } - - template - bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, - const Exception& ex) - { - errored = true; - static_cast(ex); - if (allow_exceptions) - { - JSON_THROW(ex); - } - return false; - } - - constexpr bool is_errored() const - { - return errored; - } - - private: - /*! - @param[in] v value to add to the JSON value we build during parsing - @param[in] skip_callback whether we should skip calling the callback - function; this is required after start_array() and - start_object() SAX events, because otherwise we would call the - callback function with an empty array or object, respectively. - - @invariant If the ref stack is empty, then the passed value will be the new - root. - @invariant If the ref stack contains a value, then it is an array or an - object to which we can add elements - - @return pair of boolean (whether value should be kept) and pointer (to the - passed value in the ref_stack hierarchy; nullptr if not kept) - */ - template - std::pair handle_value(Value&& v, const bool skip_callback = false) - { - JSON_ASSERT(!keep_stack.empty()); - - // do not handle this value if we know it would be added to a discarded - // container - if (!keep_stack.back()) - { - return {false, nullptr}; - } - - // create value - auto value = BasicJsonType(std::forward(v)); - - // check callback - const bool keep = skip_callback || callback(static_cast(ref_stack.size()), parse_event_t::value, value); - - // do not handle this value if we just learnt it shall be discarded - if (!keep) - { - return {false, nullptr}; - } - - if (ref_stack.empty()) - { - root = std::move(value); - return {true, &root}; - } - - // skip this value if we already decided to skip the parent - // (https://github.com/nlohmann/json/issues/971#issuecomment-413678360) - if (!ref_stack.back()) - { - return {false, nullptr}; - } - - // we now only expect arrays and objects - JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object()); - - // array - if (ref_stack.back()->is_array()) - { - ref_stack.back()->m_value.array->emplace_back(std::move(value)); - return {true, &(ref_stack.back()->m_value.array->back())}; - } - - // object - JSON_ASSERT(ref_stack.back()->is_object()); - // check if we should store an element for the current key - JSON_ASSERT(!key_keep_stack.empty()); - const bool store_element = key_keep_stack.back(); - key_keep_stack.pop_back(); - - if (!store_element) - { - return {false, nullptr}; - } - - JSON_ASSERT(object_element); - *object_element = std::move(value); - return {true, object_element}; - } - - /// the parsed JSON value - BasicJsonType& root; - /// stack to model hierarchy of values - std::vector ref_stack {}; - /// stack to manage which values to keep - std::vector keep_stack {}; - /// stack to manage which object keys to keep - std::vector key_keep_stack {}; - /// helper to hold the reference for the next object element - BasicJsonType* object_element = nullptr; - /// whether a syntax error occurred - bool errored = false; - /// callback function - const parser_callback_t callback = nullptr; - /// whether to throw exceptions in case of errors - const bool allow_exceptions = true; - /// a discarded value for the callback - BasicJsonType discarded = BasicJsonType::value_t::discarded; -}; - -template -class json_sax_acceptor -{ - public: - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - - bool null() - { - return true; - } - - bool boolean(bool /*unused*/) - { - return true; - } - - bool number_integer(number_integer_t /*unused*/) - { - return true; - } - - bool number_unsigned(number_unsigned_t /*unused*/) - { - return true; - } - - bool number_float(number_float_t /*unused*/, const string_t& /*unused*/) - { - return true; - } - - bool string(string_t& /*unused*/) - { - return true; - } - - bool binary(binary_t& /*unused*/) - { - return true; - } - - bool start_object(std::size_t /*unused*/ = std::size_t(-1)) - { - return true; - } - - bool key(string_t& /*unused*/) - { - return true; - } - - bool end_object() - { - return true; - } - - bool start_array(std::size_t /*unused*/ = std::size_t(-1)) - { - return true; - } - - bool end_array() - { - return true; - } - - bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const detail::exception& /*unused*/) - { - return false; - } -}; -} // namespace detail - -} // namespace nlohmann - -// #include - - -#include // array -#include // localeconv -#include // size_t -#include // snprintf -#include // strtof, strtod, strtold, strtoll, strtoull -#include // initializer_list -#include // char_traits, string -#include // move -#include // vector - -// #include - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -/////////// -// lexer // -/////////// - -template -class lexer_base -{ - public: - /// token types for the parser - enum class token_type - { - uninitialized, ///< indicating the scanner is uninitialized - literal_true, ///< the `true` literal - literal_false, ///< the `false` literal - literal_null, ///< the `null` literal - value_string, ///< a string -- use get_string() for actual value - value_unsigned, ///< an unsigned integer -- use get_number_unsigned() for actual value - value_integer, ///< a signed integer -- use get_number_integer() for actual value - value_float, ///< an floating point number -- use get_number_float() for actual value - begin_array, ///< the character for array begin `[` - begin_object, ///< the character for object begin `{` - end_array, ///< the character for array end `]` - end_object, ///< the character for object end `}` - name_separator, ///< the name separator `:` - value_separator, ///< the value separator `,` - parse_error, ///< indicating a parse error - end_of_input, ///< indicating the end of the input buffer - literal_or_value ///< a literal or the begin of a value (only for diagnostics) - }; - - /// return name of values of type token_type (only used for errors) - JSON_HEDLEY_RETURNS_NON_NULL - JSON_HEDLEY_CONST - static const char* token_type_name(const token_type t) noexcept - { - switch (t) - { - case token_type::uninitialized: - return ""; - case token_type::literal_true: - return "true literal"; - case token_type::literal_false: - return "false literal"; - case token_type::literal_null: - return "null literal"; - case token_type::value_string: - return "string literal"; - case token_type::value_unsigned: - case token_type::value_integer: - case token_type::value_float: - return "number literal"; - case token_type::begin_array: - return "'['"; - case token_type::begin_object: - return "'{'"; - case token_type::end_array: - return "']'"; - case token_type::end_object: - return "'}'"; - case token_type::name_separator: - return "':'"; - case token_type::value_separator: - return "','"; - case token_type::parse_error: - return ""; - case token_type::end_of_input: - return "end of input"; - case token_type::literal_or_value: - return "'[', '{', or a literal"; - // LCOV_EXCL_START - default: // catch non-enum values - return "unknown token"; - // LCOV_EXCL_STOP - } - } -}; -/*! -@brief lexical analysis - -This class organizes the lexical analysis during JSON deserialization. -*/ -template -class lexer : public lexer_base -{ - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using char_type = typename InputAdapterType::char_type; - using char_int_type = typename std::char_traits::int_type; - - public: - using token_type = typename lexer_base::token_type; - - explicit lexer(InputAdapterType&& adapter, bool ignore_comments_ = false) noexcept - : ia(std::move(adapter)) - , ignore_comments(ignore_comments_) - , decimal_point_char(static_cast(get_decimal_point())) - {} - - // delete because of pointer members - lexer(const lexer&) = delete; - lexer(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - lexer& operator=(lexer&) = delete; - lexer& operator=(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - ~lexer() = default; - - private: - ///////////////////// - // locales - ///////////////////// - - /// return the locale-dependent decimal point - JSON_HEDLEY_PURE - static char get_decimal_point() noexcept - { - const auto* loc = localeconv(); - JSON_ASSERT(loc != nullptr); - return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point); - } - - ///////////////////// - // scan functions - ///////////////////// - - /*! - @brief get codepoint from 4 hex characters following `\u` - - For input "\u c1 c2 c3 c4" the codepoint is: - (c1 * 0x1000) + (c2 * 0x0100) + (c3 * 0x0010) + c4 - = (c1 << 12) + (c2 << 8) + (c3 << 4) + (c4 << 0) - - Furthermore, the possible characters '0'..'9', 'A'..'F', and 'a'..'f' - must be converted to the integers 0x0..0x9, 0xA..0xF, 0xA..0xF, resp. The - conversion is done by subtracting the offset (0x30, 0x37, and 0x57) - between the ASCII value of the character and the desired integer value. - - @return codepoint (0x0000..0xFFFF) or -1 in case of an error (e.g. EOF or - non-hex character) - */ - int get_codepoint() - { - // this function only makes sense after reading `\u` - JSON_ASSERT(current == 'u'); - int codepoint = 0; - - const auto factors = { 12u, 8u, 4u, 0u }; - for (const auto factor : factors) - { - get(); - - if (current >= '0' && current <= '9') - { - codepoint += static_cast((static_cast(current) - 0x30u) << factor); - } - else if (current >= 'A' && current <= 'F') - { - codepoint += static_cast((static_cast(current) - 0x37u) << factor); - } - else if (current >= 'a' && current <= 'f') - { - codepoint += static_cast((static_cast(current) - 0x57u) << factor); - } - else - { - return -1; - } - } - - JSON_ASSERT(0x0000 <= codepoint && codepoint <= 0xFFFF); - return codepoint; - } - - /*! - @brief check if the next byte(s) are inside a given range - - Adds the current byte and, for each passed range, reads a new byte and - checks if it is inside the range. If a violation was detected, set up an - error message and return false. Otherwise, return true. - - @param[in] ranges list of integers; interpreted as list of pairs of - inclusive lower and upper bound, respectively - - @pre The passed list @a ranges must have 2, 4, or 6 elements; that is, - 1, 2, or 3 pairs. This precondition is enforced by an assertion. - - @return true if and only if no range violation was detected - */ - bool next_byte_in_range(std::initializer_list ranges) - { - JSON_ASSERT(ranges.size() == 2 || ranges.size() == 4 || ranges.size() == 6); - add(current); - - for (auto range = ranges.begin(); range != ranges.end(); ++range) - { - get(); - if (JSON_HEDLEY_LIKELY(*range <= current && current <= *(++range))) - { - add(current); - } - else - { - error_message = "invalid string: ill-formed UTF-8 byte"; - return false; - } - } - - return true; - } - - /*! - @brief scan a string literal - - This function scans a string according to Sect. 7 of RFC 8259. While - scanning, bytes are escaped and copied into buffer token_buffer. Then the - function returns successfully, token_buffer is *not* null-terminated (as it - may contain \0 bytes), and token_buffer.size() is the number of bytes in the - string. - - @return token_type::value_string if string could be successfully scanned, - token_type::parse_error otherwise - - @note In case of errors, variable error_message contains a textual - description. - */ - token_type scan_string() - { - // reset token_buffer (ignore opening quote) - reset(); - - // we entered the function by reading an open quote - JSON_ASSERT(current == '\"'); - - while (true) - { - // get next character - switch (get()) - { - // end of file while parsing string - case std::char_traits::eof(): - { - error_message = "invalid string: missing closing quote"; - return token_type::parse_error; - } - - // closing quote - case '\"': - { - return token_type::value_string; - } - - // escapes - case '\\': - { - switch (get()) - { - // quotation mark - case '\"': - add('\"'); - break; - // reverse solidus - case '\\': - add('\\'); - break; - // solidus - case '/': - add('/'); - break; - // backspace - case 'b': - add('\b'); - break; - // form feed - case 'f': - add('\f'); - break; - // line feed - case 'n': - add('\n'); - break; - // carriage return - case 'r': - add('\r'); - break; - // tab - case 't': - add('\t'); - break; - - // unicode escapes - case 'u': - { - const int codepoint1 = get_codepoint(); - int codepoint = codepoint1; // start with codepoint1 - - if (JSON_HEDLEY_UNLIKELY(codepoint1 == -1)) - { - error_message = "invalid string: '\\u' must be followed by 4 hex digits"; - return token_type::parse_error; - } - - // check if code point is a high surrogate - if (0xD800 <= codepoint1 && codepoint1 <= 0xDBFF) - { - // expect next \uxxxx entry - if (JSON_HEDLEY_LIKELY(get() == '\\' && get() == 'u')) - { - const int codepoint2 = get_codepoint(); - - if (JSON_HEDLEY_UNLIKELY(codepoint2 == -1)) - { - error_message = "invalid string: '\\u' must be followed by 4 hex digits"; - return token_type::parse_error; - } - - // check if codepoint2 is a low surrogate - if (JSON_HEDLEY_LIKELY(0xDC00 <= codepoint2 && codepoint2 <= 0xDFFF)) - { - // overwrite codepoint - codepoint = static_cast( - // high surrogate occupies the most significant 22 bits - (static_cast(codepoint1) << 10u) - // low surrogate occupies the least significant 15 bits - + static_cast(codepoint2) - // there is still the 0xD800, 0xDC00 and 0x10000 noise - // in the result so we have to subtract with: - // (0xD800 << 10) + DC00 - 0x10000 = 0x35FDC00 - - 0x35FDC00u); - } - else - { - error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF"; - return token_type::parse_error; - } - } - else - { - error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF"; - return token_type::parse_error; - } - } - else - { - if (JSON_HEDLEY_UNLIKELY(0xDC00 <= codepoint1 && codepoint1 <= 0xDFFF)) - { - error_message = "invalid string: surrogate U+DC00..U+DFFF must follow U+D800..U+DBFF"; - return token_type::parse_error; - } - } - - // result of the above calculation yields a proper codepoint - JSON_ASSERT(0x00 <= codepoint && codepoint <= 0x10FFFF); - - // translate codepoint into bytes - if (codepoint < 0x80) - { - // 1-byte characters: 0xxxxxxx (ASCII) - add(static_cast(codepoint)); - } - else if (codepoint <= 0x7FF) - { - // 2-byte characters: 110xxxxx 10xxxxxx - add(static_cast(0xC0u | (static_cast(codepoint) >> 6u))); - add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); - } - else if (codepoint <= 0xFFFF) - { - // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx - add(static_cast(0xE0u | (static_cast(codepoint) >> 12u))); - add(static_cast(0x80u | ((static_cast(codepoint) >> 6u) & 0x3Fu))); - add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); - } - else - { - // 4-byte characters: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - add(static_cast(0xF0u | (static_cast(codepoint) >> 18u))); - add(static_cast(0x80u | ((static_cast(codepoint) >> 12u) & 0x3Fu))); - add(static_cast(0x80u | ((static_cast(codepoint) >> 6u) & 0x3Fu))); - add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); - } - - break; - } - - // other characters after escape - default: - error_message = "invalid string: forbidden character after backslash"; - return token_type::parse_error; - } - - break; - } - - // invalid control characters - case 0x00: - { - error_message = "invalid string: control character U+0000 (NUL) must be escaped to \\u0000"; - return token_type::parse_error; - } - - case 0x01: - { - error_message = "invalid string: control character U+0001 (SOH) must be escaped to \\u0001"; - return token_type::parse_error; - } - - case 0x02: - { - error_message = "invalid string: control character U+0002 (STX) must be escaped to \\u0002"; - return token_type::parse_error; - } - - case 0x03: - { - error_message = "invalid string: control character U+0003 (ETX) must be escaped to \\u0003"; - return token_type::parse_error; - } - - case 0x04: - { - error_message = "invalid string: control character U+0004 (EOT) must be escaped to \\u0004"; - return token_type::parse_error; - } - - case 0x05: - { - error_message = "invalid string: control character U+0005 (ENQ) must be escaped to \\u0005"; - return token_type::parse_error; - } - - case 0x06: - { - error_message = "invalid string: control character U+0006 (ACK) must be escaped to \\u0006"; - return token_type::parse_error; - } - - case 0x07: - { - error_message = "invalid string: control character U+0007 (BEL) must be escaped to \\u0007"; - return token_type::parse_error; - } - - case 0x08: - { - error_message = "invalid string: control character U+0008 (BS) must be escaped to \\u0008 or \\b"; - return token_type::parse_error; - } - - case 0x09: - { - error_message = "invalid string: control character U+0009 (HT) must be escaped to \\u0009 or \\t"; - return token_type::parse_error; - } - - case 0x0A: - { - error_message = "invalid string: control character U+000A (LF) must be escaped to \\u000A or \\n"; - return token_type::parse_error; - } - - case 0x0B: - { - error_message = "invalid string: control character U+000B (VT) must be escaped to \\u000B"; - return token_type::parse_error; - } - - case 0x0C: - { - error_message = "invalid string: control character U+000C (FF) must be escaped to \\u000C or \\f"; - return token_type::parse_error; - } - - case 0x0D: - { - error_message = "invalid string: control character U+000D (CR) must be escaped to \\u000D or \\r"; - return token_type::parse_error; - } - - case 0x0E: - { - error_message = "invalid string: control character U+000E (SO) must be escaped to \\u000E"; - return token_type::parse_error; - } - - case 0x0F: - { - error_message = "invalid string: control character U+000F (SI) must be escaped to \\u000F"; - return token_type::parse_error; - } - - case 0x10: - { - error_message = "invalid string: control character U+0010 (DLE) must be escaped to \\u0010"; - return token_type::parse_error; - } - - case 0x11: - { - error_message = "invalid string: control character U+0011 (DC1) must be escaped to \\u0011"; - return token_type::parse_error; - } - - case 0x12: - { - error_message = "invalid string: control character U+0012 (DC2) must be escaped to \\u0012"; - return token_type::parse_error; - } - - case 0x13: - { - error_message = "invalid string: control character U+0013 (DC3) must be escaped to \\u0013"; - return token_type::parse_error; - } - - case 0x14: - { - error_message = "invalid string: control character U+0014 (DC4) must be escaped to \\u0014"; - return token_type::parse_error; - } - - case 0x15: - { - error_message = "invalid string: control character U+0015 (NAK) must be escaped to \\u0015"; - return token_type::parse_error; - } - - case 0x16: - { - error_message = "invalid string: control character U+0016 (SYN) must be escaped to \\u0016"; - return token_type::parse_error; - } - - case 0x17: - { - error_message = "invalid string: control character U+0017 (ETB) must be escaped to \\u0017"; - return token_type::parse_error; - } - - case 0x18: - { - error_message = "invalid string: control character U+0018 (CAN) must be escaped to \\u0018"; - return token_type::parse_error; - } - - case 0x19: - { - error_message = "invalid string: control character U+0019 (EM) must be escaped to \\u0019"; - return token_type::parse_error; - } - - case 0x1A: - { - error_message = "invalid string: control character U+001A (SUB) must be escaped to \\u001A"; - return token_type::parse_error; - } - - case 0x1B: - { - error_message = "invalid string: control character U+001B (ESC) must be escaped to \\u001B"; - return token_type::parse_error; - } - - case 0x1C: - { - error_message = "invalid string: control character U+001C (FS) must be escaped to \\u001C"; - return token_type::parse_error; - } - - case 0x1D: - { - error_message = "invalid string: control character U+001D (GS) must be escaped to \\u001D"; - return token_type::parse_error; - } - - case 0x1E: - { - error_message = "invalid string: control character U+001E (RS) must be escaped to \\u001E"; - return token_type::parse_error; - } - - case 0x1F: - { - error_message = "invalid string: control character U+001F (US) must be escaped to \\u001F"; - return token_type::parse_error; - } - - // U+0020..U+007F (except U+0022 (quote) and U+005C (backspace)) - case 0x20: - case 0x21: - case 0x23: - case 0x24: - case 0x25: - case 0x26: - case 0x27: - case 0x28: - case 0x29: - case 0x2A: - case 0x2B: - case 0x2C: - case 0x2D: - case 0x2E: - case 0x2F: - case 0x30: - case 0x31: - case 0x32: - case 0x33: - case 0x34: - case 0x35: - case 0x36: - case 0x37: - case 0x38: - case 0x39: - case 0x3A: - case 0x3B: - case 0x3C: - case 0x3D: - case 0x3E: - case 0x3F: - case 0x40: - case 0x41: - case 0x42: - case 0x43: - case 0x44: - case 0x45: - case 0x46: - case 0x47: - case 0x48: - case 0x49: - case 0x4A: - case 0x4B: - case 0x4C: - case 0x4D: - case 0x4E: - case 0x4F: - case 0x50: - case 0x51: - case 0x52: - case 0x53: - case 0x54: - case 0x55: - case 0x56: - case 0x57: - case 0x58: - case 0x59: - case 0x5A: - case 0x5B: - case 0x5D: - case 0x5E: - case 0x5F: - case 0x60: - case 0x61: - case 0x62: - case 0x63: - case 0x64: - case 0x65: - case 0x66: - case 0x67: - case 0x68: - case 0x69: - case 0x6A: - case 0x6B: - case 0x6C: - case 0x6D: - case 0x6E: - case 0x6F: - case 0x70: - case 0x71: - case 0x72: - case 0x73: - case 0x74: - case 0x75: - case 0x76: - case 0x77: - case 0x78: - case 0x79: - case 0x7A: - case 0x7B: - case 0x7C: - case 0x7D: - case 0x7E: - case 0x7F: - { - add(current); - break; - } - - // U+0080..U+07FF: bytes C2..DF 80..BF - case 0xC2: - case 0xC3: - case 0xC4: - case 0xC5: - case 0xC6: - case 0xC7: - case 0xC8: - case 0xC9: - case 0xCA: - case 0xCB: - case 0xCC: - case 0xCD: - case 0xCE: - case 0xCF: - case 0xD0: - case 0xD1: - case 0xD2: - case 0xD3: - case 0xD4: - case 0xD5: - case 0xD6: - case 0xD7: - case 0xD8: - case 0xD9: - case 0xDA: - case 0xDB: - case 0xDC: - case 0xDD: - case 0xDE: - case 0xDF: - { - if (JSON_HEDLEY_UNLIKELY(!next_byte_in_range({0x80, 0xBF}))) - { - return token_type::parse_error; - } - break; - } - - // U+0800..U+0FFF: bytes E0 A0..BF 80..BF - case 0xE0: - { - if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0xA0, 0xBF, 0x80, 0xBF})))) - { - return token_type::parse_error; - } - break; - } - - // U+1000..U+CFFF: bytes E1..EC 80..BF 80..BF - // U+E000..U+FFFF: bytes EE..EF 80..BF 80..BF - case 0xE1: - case 0xE2: - case 0xE3: - case 0xE4: - case 0xE5: - case 0xE6: - case 0xE7: - case 0xE8: - case 0xE9: - case 0xEA: - case 0xEB: - case 0xEC: - case 0xEE: - case 0xEF: - { - if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF})))) - { - return token_type::parse_error; - } - break; - } - - // U+D000..U+D7FF: bytes ED 80..9F 80..BF - case 0xED: - { - if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x9F, 0x80, 0xBF})))) - { - return token_type::parse_error; - } - break; - } - - // U+10000..U+3FFFF F0 90..BF 80..BF 80..BF - case 0xF0: - { - if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x90, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) - { - return token_type::parse_error; - } - break; - } - - // U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF - case 0xF1: - case 0xF2: - case 0xF3: - { - if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) - { - return token_type::parse_error; - } - break; - } - - // U+100000..U+10FFFF F4 80..8F 80..BF 80..BF - case 0xF4: - { - if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x8F, 0x80, 0xBF, 0x80, 0xBF})))) - { - return token_type::parse_error; - } - break; - } - - // remaining bytes (80..C1 and F5..FF) are ill-formed - default: - { - error_message = "invalid string: ill-formed UTF-8 byte"; - return token_type::parse_error; - } - } - } - } - - /*! - * @brief scan a comment - * @return whether comment could be scanned successfully - */ - bool scan_comment() - { - switch (get()) - { - // single-line comments skip input until a newline or EOF is read - case '/': - { - while (true) - { - switch (get()) - { - case '\n': - case '\r': - case std::char_traits::eof(): - case '\0': - return true; - - default: - break; - } - } - } - - // multi-line comments skip input until */ is read - case '*': - { - while (true) - { - switch (get()) - { - case std::char_traits::eof(): - case '\0': - { - error_message = "invalid comment; missing closing '*/'"; - return false; - } - - case '*': - { - switch (get()) - { - case '/': - return true; - - default: - { - unget(); - continue; - } - } - } - - default: - continue; - } - } - } - - // unexpected character after reading '/' - default: - { - error_message = "invalid comment; expecting '/' or '*' after '/'"; - return false; - } - } - } - - JSON_HEDLEY_NON_NULL(2) - static void strtof(float& f, const char* str, char** endptr) noexcept - { - f = std::strtof(str, endptr); - } - - JSON_HEDLEY_NON_NULL(2) - static void strtof(double& f, const char* str, char** endptr) noexcept - { - f = std::strtod(str, endptr); - } - - JSON_HEDLEY_NON_NULL(2) - static void strtof(long double& f, const char* str, char** endptr) noexcept - { - f = std::strtold(str, endptr); - } - - /*! - @brief scan a number literal - - This function scans a string according to Sect. 6 of RFC 8259. - - The function is realized with a deterministic finite state machine derived - from the grammar described in RFC 8259. Starting in state "init", the - input is read and used to determined the next state. Only state "done" - accepts the number. State "error" is a trap state to model errors. In the - table below, "anything" means any character but the ones listed before. - - state | 0 | 1-9 | e E | + | - | . | anything - ---------|----------|----------|----------|---------|---------|----------|----------- - init | zero | any1 | [error] | [error] | minus | [error] | [error] - minus | zero | any1 | [error] | [error] | [error] | [error] | [error] - zero | done | done | exponent | done | done | decimal1 | done - any1 | any1 | any1 | exponent | done | done | decimal1 | done - decimal1 | decimal2 | decimal2 | [error] | [error] | [error] | [error] | [error] - decimal2 | decimal2 | decimal2 | exponent | done | done | done | done - exponent | any2 | any2 | [error] | sign | sign | [error] | [error] - sign | any2 | any2 | [error] | [error] | [error] | [error] | [error] - any2 | any2 | any2 | done | done | done | done | done - - The state machine is realized with one label per state (prefixed with - "scan_number_") and `goto` statements between them. The state machine - contains cycles, but any cycle can be left when EOF is read. Therefore, - the function is guaranteed to terminate. - - During scanning, the read bytes are stored in token_buffer. This string is - then converted to a signed integer, an unsigned integer, or a - floating-point number. - - @return token_type::value_unsigned, token_type::value_integer, or - token_type::value_float if number could be successfully scanned, - token_type::parse_error otherwise - - @note The scanner is independent of the current locale. Internally, the - locale's decimal point is used instead of `.` to work with the - locale-dependent converters. - */ - token_type scan_number() // lgtm [cpp/use-of-goto] - { - // reset token_buffer to store the number's bytes - reset(); - - // the type of the parsed number; initially set to unsigned; will be - // changed if minus sign, decimal point or exponent is read - token_type number_type = token_type::value_unsigned; - - // state (init): we just found out we need to scan a number - switch (current) - { - case '-': - { - add(current); - goto scan_number_minus; - } - - case '0': - { - add(current); - goto scan_number_zero; - } - - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_any1; - } - - // all other characters are rejected outside scan_number() - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - -scan_number_minus: - // state: we just parsed a leading minus sign - number_type = token_type::value_integer; - switch (get()) - { - case '0': - { - add(current); - goto scan_number_zero; - } - - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_any1; - } - - default: - { - error_message = "invalid number; expected digit after '-'"; - return token_type::parse_error; - } - } - -scan_number_zero: - // state: we just parse a zero (maybe with a leading minus sign) - switch (get()) - { - case '.': - { - add(decimal_point_char); - goto scan_number_decimal1; - } - - case 'e': - case 'E': - { - add(current); - goto scan_number_exponent; - } - - default: - goto scan_number_done; - } - -scan_number_any1: - // state: we just parsed a number 0-9 (maybe with a leading minus sign) - switch (get()) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_any1; - } - - case '.': - { - add(decimal_point_char); - goto scan_number_decimal1; - } - - case 'e': - case 'E': - { - add(current); - goto scan_number_exponent; - } - - default: - goto scan_number_done; - } - -scan_number_decimal1: - // state: we just parsed a decimal point - number_type = token_type::value_float; - switch (get()) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_decimal2; - } - - default: - { - error_message = "invalid number; expected digit after '.'"; - return token_type::parse_error; - } - } - -scan_number_decimal2: - // we just parsed at least one number after a decimal point - switch (get()) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_decimal2; - } - - case 'e': - case 'E': - { - add(current); - goto scan_number_exponent; - } - - default: - goto scan_number_done; - } - -scan_number_exponent: - // we just parsed an exponent - number_type = token_type::value_float; - switch (get()) - { - case '+': - case '-': - { - add(current); - goto scan_number_sign; - } - - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_any2; - } - - default: - { - error_message = - "invalid number; expected '+', '-', or digit after exponent"; - return token_type::parse_error; - } - } - -scan_number_sign: - // we just parsed an exponent sign - switch (get()) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_any2; - } - - default: - { - error_message = "invalid number; expected digit after exponent sign"; - return token_type::parse_error; - } - } - -scan_number_any2: - // we just parsed a number after the exponent or exponent sign - switch (get()) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - { - add(current); - goto scan_number_any2; - } - - default: - goto scan_number_done; - } - -scan_number_done: - // unget the character after the number (we only read it to know that - // we are done scanning a number) - unget(); - - char* endptr = nullptr; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - errno = 0; - - // try to parse integers first and fall back to floats - if (number_type == token_type::value_unsigned) - { - const auto x = std::strtoull(token_buffer.data(), &endptr, 10); - - // we checked the number format before - JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); - - if (errno == 0) - { - value_unsigned = static_cast(x); - if (value_unsigned == x) - { - return token_type::value_unsigned; - } - } - } - else if (number_type == token_type::value_integer) - { - const auto x = std::strtoll(token_buffer.data(), &endptr, 10); - - // we checked the number format before - JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); - - if (errno == 0) - { - value_integer = static_cast(x); - if (value_integer == x) - { - return token_type::value_integer; - } - } - } - - // this code is reached if we parse a floating-point number or if an - // integer conversion above failed - strtof(value_float, token_buffer.data(), &endptr); - - // we checked the number format before - JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); - - return token_type::value_float; - } - - /*! - @param[in] literal_text the literal text to expect - @param[in] length the length of the passed literal text - @param[in] return_type the token type to return on success - */ - JSON_HEDLEY_NON_NULL(2) - token_type scan_literal(const char_type* literal_text, const std::size_t length, - token_type return_type) - { - JSON_ASSERT(std::char_traits::to_char_type(current) == literal_text[0]); - for (std::size_t i = 1; i < length; ++i) - { - if (JSON_HEDLEY_UNLIKELY(std::char_traits::to_char_type(get()) != literal_text[i])) - { - error_message = "invalid literal"; - return token_type::parse_error; - } - } - return return_type; - } - - ///////////////////// - // input management - ///////////////////// - - /// reset token_buffer; current character is beginning of token - void reset() noexcept - { - token_buffer.clear(); - token_string.clear(); - token_string.push_back(std::char_traits::to_char_type(current)); - } - - /* - @brief get next character from the input - - This function provides the interface to the used input adapter. It does - not throw in case the input reached EOF, but returns a - `std::char_traits::eof()` in that case. Stores the scanned characters - for use in error messages. - - @return character read from the input - */ - char_int_type get() - { - ++position.chars_read_total; - ++position.chars_read_current_line; - - if (next_unget) - { - // just reset the next_unget variable and work with current - next_unget = false; - } - else - { - current = ia.get_character(); - } - - if (JSON_HEDLEY_LIKELY(current != std::char_traits::eof())) - { - token_string.push_back(std::char_traits::to_char_type(current)); - } - - if (current == '\n') - { - ++position.lines_read; - position.chars_read_current_line = 0; - } - - return current; - } - - /*! - @brief unget current character (read it again on next get) - - We implement unget by setting variable next_unget to true. The input is not - changed - we just simulate ungetting by modifying chars_read_total, - chars_read_current_line, and token_string. The next call to get() will - behave as if the unget character is read again. - */ - void unget() - { - next_unget = true; - - --position.chars_read_total; - - // in case we "unget" a newline, we have to also decrement the lines_read - if (position.chars_read_current_line == 0) - { - if (position.lines_read > 0) - { - --position.lines_read; - } - } - else - { - --position.chars_read_current_line; - } - - if (JSON_HEDLEY_LIKELY(current != std::char_traits::eof())) - { - JSON_ASSERT(!token_string.empty()); - token_string.pop_back(); - } - } - - /// add a character to token_buffer - void add(char_int_type c) - { - token_buffer.push_back(static_cast(c)); - } - - public: - ///////////////////// - // value getters - ///////////////////// - - /// return integer value - constexpr number_integer_t get_number_integer() const noexcept - { - return value_integer; - } - - /// return unsigned integer value - constexpr number_unsigned_t get_number_unsigned() const noexcept - { - return value_unsigned; - } - - /// return floating-point value - constexpr number_float_t get_number_float() const noexcept - { - return value_float; - } - - /// return current string value (implicitly resets the token; useful only once) - string_t& get_string() - { - return token_buffer; - } - - ///////////////////// - // diagnostics - ///////////////////// - - /// return position of last read token - constexpr position_t get_position() const noexcept - { - return position; - } - - /// return the last read token (for errors only). Will never contain EOF - /// (an arbitrary value that is not a valid char value, often -1), because - /// 255 may legitimately occur. May contain NUL, which should be escaped. - std::string get_token_string() const - { - // escape control characters - std::string result; - for (const auto c : token_string) - { - if (static_cast(c) <= '\x1F') - { - // escape control characters - std::array cs{{}}; - (std::snprintf)(cs.data(), cs.size(), "", static_cast(c)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - result += cs.data(); - } - else - { - // add character as is - result.push_back(static_cast(c)); - } - } - - return result; - } - - /// return syntax error message - JSON_HEDLEY_RETURNS_NON_NULL - constexpr const char* get_error_message() const noexcept - { - return error_message; - } - - ///////////////////// - // actual scanner - ///////////////////// - - /*! - @brief skip the UTF-8 byte order mark - @return true iff there is no BOM or the correct BOM has been skipped - */ - bool skip_bom() - { - if (get() == 0xEF) - { - // check if we completely parse the BOM - return get() == 0xBB && get() == 0xBF; - } - - // the first character is not the beginning of the BOM; unget it to - // process is later - unget(); - return true; - } - - void skip_whitespace() - { - do - { - get(); - } - while (current == ' ' || current == '\t' || current == '\n' || current == '\r'); - } - - token_type scan() - { - // initially, skip the BOM - if (position.chars_read_total == 0 && !skip_bom()) - { - error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given"; - return token_type::parse_error; - } - - // read next character and ignore whitespace - skip_whitespace(); - - // ignore comments - while (ignore_comments && current == '/') - { - if (!scan_comment()) - { - return token_type::parse_error; - } - - // skip following whitespace - skip_whitespace(); - } - - switch (current) - { - // structural characters - case '[': - return token_type::begin_array; - case ']': - return token_type::end_array; - case '{': - return token_type::begin_object; - case '}': - return token_type::end_object; - case ':': - return token_type::name_separator; - case ',': - return token_type::value_separator; - - // literals - case 't': - { - std::array true_literal = {{char_type('t'), char_type('r'), char_type('u'), char_type('e')}}; - return scan_literal(true_literal.data(), true_literal.size(), token_type::literal_true); - } - case 'f': - { - std::array false_literal = {{char_type('f'), char_type('a'), char_type('l'), char_type('s'), char_type('e')}}; - return scan_literal(false_literal.data(), false_literal.size(), token_type::literal_false); - } - case 'n': - { - std::array null_literal = {{char_type('n'), char_type('u'), char_type('l'), char_type('l')}}; - return scan_literal(null_literal.data(), null_literal.size(), token_type::literal_null); - } - - // string - case '\"': - return scan_string(); - - // number - case '-': - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - return scan_number(); - - // end of input (the null byte is needed when parsing from - // string literals) - case '\0': - case std::char_traits::eof(): - return token_type::end_of_input; - - // error - default: - error_message = "invalid literal"; - return token_type::parse_error; - } - } - - private: - /// input adapter - InputAdapterType ia; - - /// whether comments should be ignored (true) or signaled as errors (false) - const bool ignore_comments = false; - - /// the current character - char_int_type current = std::char_traits::eof(); - - /// whether the next get() call should just return current - bool next_unget = false; - - /// the start position of the current token - position_t position {}; - - /// raw input token string (for error messages) - std::vector token_string {}; - - /// buffer for variable-length tokens (numbers, strings) - string_t token_buffer {}; - - /// a description of occurred lexer errors - const char* error_message = ""; - - // number values - number_integer_t value_integer = 0; - number_unsigned_t value_unsigned = 0; - number_float_t value_float = 0; - - /// the decimal point - const char_int_type decimal_point_char = '.'; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - - -#include // size_t -#include // declval -#include // string - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template -using null_function_t = decltype(std::declval().null()); - -template -using boolean_function_t = - decltype(std::declval().boolean(std::declval())); - -template -using number_integer_function_t = - decltype(std::declval().number_integer(std::declval())); - -template -using number_unsigned_function_t = - decltype(std::declval().number_unsigned(std::declval())); - -template -using number_float_function_t = decltype(std::declval().number_float( - std::declval(), std::declval())); - -template -using string_function_t = - decltype(std::declval().string(std::declval())); - -template -using binary_function_t = - decltype(std::declval().binary(std::declval())); - -template -using start_object_function_t = - decltype(std::declval().start_object(std::declval())); - -template -using key_function_t = - decltype(std::declval().key(std::declval())); - -template -using end_object_function_t = decltype(std::declval().end_object()); - -template -using start_array_function_t = - decltype(std::declval().start_array(std::declval())); - -template -using end_array_function_t = decltype(std::declval().end_array()); - -template -using parse_error_function_t = decltype(std::declval().parse_error( - std::declval(), std::declval(), - std::declval())); - -template -struct is_sax -{ - private: - static_assert(is_basic_json::value, - "BasicJsonType must be of type basic_json<...>"); - - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - using exception_t = typename BasicJsonType::exception; - - public: - static constexpr bool value = - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value && - is_detected_exact::value; -}; - -template -struct is_sax_static_asserts -{ - private: - static_assert(is_basic_json::value, - "BasicJsonType must be of type basic_json<...>"); - - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - using exception_t = typename BasicJsonType::exception; - - public: - static_assert(is_detected_exact::value, - "Missing/invalid function: bool null()"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool boolean(bool)"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool boolean(bool)"); - static_assert( - is_detected_exact::value, - "Missing/invalid function: bool number_integer(number_integer_t)"); - static_assert( - is_detected_exact::value, - "Missing/invalid function: bool number_unsigned(number_unsigned_t)"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool number_float(number_float_t, const string_t&)"); - static_assert( - is_detected_exact::value, - "Missing/invalid function: bool string(string_t&)"); - static_assert( - is_detected_exact::value, - "Missing/invalid function: bool binary(binary_t&)"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool start_object(std::size_t)"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool key(string_t&)"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool end_object()"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool start_array(std::size_t)"); - static_assert(is_detected_exact::value, - "Missing/invalid function: bool end_array()"); - static_assert( - is_detected_exact::value, - "Missing/invalid function: bool parse_error(std::size_t, const " - "std::string&, const exception&)"); -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ - -/// how to treat CBOR tags -enum class cbor_tag_handler_t -{ - error, ///< throw a parse_error exception in case of a tag - ignore, ///< ignore tags - store ///< store tags as binary type -}; - -/*! -@brief determine system byte order - -@return true if and only if system's byte order is little endian - -@note from https://stackoverflow.com/a/1001328/266378 -*/ -static inline bool little_endianess(int num = 1) noexcept -{ - return *reinterpret_cast(&num) == 1; -} - - -/////////////////// -// binary reader // -/////////////////// - -/*! -@brief deserialization of CBOR, MessagePack, and UBJSON values -*/ -template> -class binary_reader -{ - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - using json_sax_t = SAX; - using char_type = typename InputAdapterType::char_type; - using char_int_type = typename std::char_traits::int_type; - - public: - /*! - @brief create a binary reader - - @param[in] adapter input adapter to read from - */ - explicit binary_reader(InputAdapterType&& adapter) noexcept : ia(std::move(adapter)) - { - (void)detail::is_sax_static_asserts {}; - } - - // make class move-only - binary_reader(const binary_reader&) = delete; - binary_reader(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - binary_reader& operator=(const binary_reader&) = delete; - binary_reader& operator=(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) - ~binary_reader() = default; - - /*! - @param[in] format the binary format to parse - @param[in] sax_ a SAX event processor - @param[in] strict whether to expect the input to be consumed completed - @param[in] tag_handler how to treat CBOR tags - - @return whether parsing was successful - */ - JSON_HEDLEY_NON_NULL(3) - bool sax_parse(const input_format_t format, - json_sax_t* sax_, - const bool strict = true, - const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) - { - sax = sax_; - bool result = false; - - switch (format) - { - case input_format_t::bson: - result = parse_bson_internal(); - break; - - case input_format_t::cbor: - result = parse_cbor_internal(true, tag_handler); - break; - - case input_format_t::msgpack: - result = parse_msgpack_internal(); - break; - - case input_format_t::ubjson: - result = parse_ubjson_internal(); - break; - - case input_format_t::json: // LCOV_EXCL_LINE - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - - // strict mode: next byte must be EOF - if (result && strict) - { - if (format == input_format_t::ubjson) - { - get_ignore_noop(); - } - else - { - get(); - } - - if (JSON_HEDLEY_UNLIKELY(current != std::char_traits::eof())) - { - return sax->parse_error(chars_read, get_token_string(), - parse_error::create(110, chars_read, exception_message(format, "expected end of input; last byte: 0x" + get_token_string(), "value"), BasicJsonType())); - } - } - - return result; - } - - private: - ////////// - // BSON // - ////////// - - /*! - @brief Reads in a BSON-object and passes it to the SAX-parser. - @return whether a valid BSON-value was passed to the SAX parser - */ - bool parse_bson_internal() - { - std::int32_t document_size{}; - get_number(input_format_t::bson, document_size); - - if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1)))) - { - return false; - } - - if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/false))) - { - return false; - } - - return sax->end_object(); - } - - /*! - @brief Parses a C-style string from the BSON input. - @param[in,out] result A reference to the string variable where the read - string is to be stored. - @return `true` if the \x00-byte indicating the end of the string was - encountered before the EOF; false` indicates an unexpected EOF. - */ - bool get_bson_cstr(string_t& result) - { - auto out = std::back_inserter(result); - while (true) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "cstring"))) - { - return false; - } - if (current == 0x00) - { - return true; - } - *out++ = static_cast(current); - } - } - - /*! - @brief Parses a zero-terminated string of length @a len from the BSON - input. - @param[in] len The length (including the zero-byte at the end) of the - string to be read. - @param[in,out] result A reference to the string variable where the read - string is to be stored. - @tparam NumberType The type of the length @a len - @pre len >= 1 - @return `true` if the string was successfully parsed - */ - template - bool get_bson_string(const NumberType len, string_t& result) - { - if (JSON_HEDLEY_UNLIKELY(len < 1)) - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "string length must be at least 1, is " + std::to_string(len), "string"), BasicJsonType())); - } - - return get_string(input_format_t::bson, len - static_cast(1), result) && get() != std::char_traits::eof(); - } - - /*! - @brief Parses a byte array input of length @a len from the BSON input. - @param[in] len The length of the byte array to be read. - @param[in,out] result A reference to the binary variable where the read - array is to be stored. - @tparam NumberType The type of the length @a len - @pre len >= 0 - @return `true` if the byte array was successfully parsed - */ - template - bool get_bson_binary(const NumberType len, binary_t& result) - { - if (JSON_HEDLEY_UNLIKELY(len < 0)) - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "byte array length cannot be negative, is " + std::to_string(len), "binary"), BasicJsonType())); - } - - // All BSON binary values have a subtype - std::uint8_t subtype{}; - get_number(input_format_t::bson, subtype); - result.set_subtype(subtype); - - return get_binary(input_format_t::bson, len, result); - } - - /*! - @brief Read a BSON document element of the given @a element_type. - @param[in] element_type The BSON element type, c.f. http://bsonspec.org/spec.html - @param[in] element_type_parse_position The position in the input stream, - where the `element_type` was read. - @warning Not all BSON element types are supported yet. An unsupported - @a element_type will give rise to a parse_error.114: - Unsupported BSON record type 0x... - @return whether a valid BSON-object/array was passed to the SAX parser - */ - bool parse_bson_element_internal(const char_int_type element_type, - const std::size_t element_type_parse_position) - { - switch (element_type) - { - case 0x01: // double - { - double number{}; - return get_number(input_format_t::bson, number) && sax->number_float(static_cast(number), ""); - } - - case 0x02: // string - { - std::int32_t len{}; - string_t value; - return get_number(input_format_t::bson, len) && get_bson_string(len, value) && sax->string(value); - } - - case 0x03: // object - { - return parse_bson_internal(); - } - - case 0x04: // array - { - return parse_bson_array(); - } - - case 0x05: // binary - { - std::int32_t len{}; - binary_t value; - return get_number(input_format_t::bson, len) && get_bson_binary(len, value) && sax->binary(value); - } - - case 0x08: // boolean - { - return sax->boolean(get() != 0); - } - - case 0x0A: // null - { - return sax->null(); - } - - case 0x10: // int32 - { - std::int32_t value{}; - return get_number(input_format_t::bson, value) && sax->number_integer(value); - } - - case 0x12: // int64 - { - std::int64_t value{}; - return get_number(input_format_t::bson, value) && sax->number_integer(value); - } - - default: // anything else not supported (yet) - { - std::array cr{{}}; - (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast(element_type)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - return sax->parse_error(element_type_parse_position, std::string(cr.data()), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr.data()), BasicJsonType())); - } - } - } - - /*! - @brief Read a BSON element list (as specified in the BSON-spec) - - The same binary layout is used for objects and arrays, hence it must be - indicated with the argument @a is_array which one is expected - (true --> array, false --> object). - - @param[in] is_array Determines if the element list being read is to be - treated as an object (@a is_array == false), or as an - array (@a is_array == true). - @return whether a valid BSON-object/array was passed to the SAX parser - */ - bool parse_bson_element_list(const bool is_array) - { - string_t key; - - while (auto element_type = get()) - { - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "element list"))) - { - return false; - } - - const std::size_t element_type_parse_position = chars_read; - if (JSON_HEDLEY_UNLIKELY(!get_bson_cstr(key))) - { - return false; - } - - if (!is_array && !sax->key(key)) - { - return false; - } - - if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_internal(element_type, element_type_parse_position))) - { - return false; - } - - // get_bson_cstr only appends - key.clear(); - } - - return true; - } - - /*! - @brief Reads an array from the BSON input and passes it to the SAX-parser. - @return whether a valid BSON-array was passed to the SAX parser - */ - bool parse_bson_array() - { - std::int32_t document_size{}; - get_number(input_format_t::bson, document_size); - - if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1)))) - { - return false; - } - - if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/true))) - { - return false; - } - - return sax->end_array(); - } - - ////////// - // CBOR // - ////////// - - /*! - @param[in] get_char whether a new character should be retrieved from the - input (true) or whether the last read character should - be considered instead (false) - @param[in] tag_handler how CBOR tags should be treated - - @return whether a valid CBOR value was passed to the SAX parser - */ - bool parse_cbor_internal(const bool get_char, - const cbor_tag_handler_t tag_handler) - { - switch (get_char ? get() : current) - { - // EOF - case std::char_traits::eof(): - return unexpect_eof(input_format_t::cbor, "value"); - - // Integer 0x00..0x17 (0..23) - case 0x00: - case 0x01: - case 0x02: - case 0x03: - case 0x04: - case 0x05: - case 0x06: - case 0x07: - case 0x08: - case 0x09: - case 0x0A: - case 0x0B: - case 0x0C: - case 0x0D: - case 0x0E: - case 0x0F: - case 0x10: - case 0x11: - case 0x12: - case 0x13: - case 0x14: - case 0x15: - case 0x16: - case 0x17: - return sax->number_unsigned(static_cast(current)); - - case 0x18: // Unsigned integer (one-byte uint8_t follows) - { - std::uint8_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); - } - - case 0x19: // Unsigned integer (two-byte uint16_t follows) - { - std::uint16_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); - } - - case 0x1A: // Unsigned integer (four-byte uint32_t follows) - { - std::uint32_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); - } - - case 0x1B: // Unsigned integer (eight-byte uint64_t follows) - { - std::uint64_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); - } - - // Negative integer -1-0x00..-1-0x17 (-1..-24) - case 0x20: - case 0x21: - case 0x22: - case 0x23: - case 0x24: - case 0x25: - case 0x26: - case 0x27: - case 0x28: - case 0x29: - case 0x2A: - case 0x2B: - case 0x2C: - case 0x2D: - case 0x2E: - case 0x2F: - case 0x30: - case 0x31: - case 0x32: - case 0x33: - case 0x34: - case 0x35: - case 0x36: - case 0x37: - return sax->number_integer(static_cast(0x20 - 1 - current)); - - case 0x38: // Negative integer (one-byte uint8_t follows) - { - std::uint8_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); - } - - case 0x39: // Negative integer -1-n (two-byte uint16_t follows) - { - std::uint16_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); - } - - case 0x3A: // Negative integer -1-n (four-byte uint32_t follows) - { - std::uint32_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); - } - - case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows) - { - std::uint64_t number{}; - return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - - static_cast(number)); - } - - // Binary data (0x00..0x17 bytes follow) - case 0x40: - case 0x41: - case 0x42: - case 0x43: - case 0x44: - case 0x45: - case 0x46: - case 0x47: - case 0x48: - case 0x49: - case 0x4A: - case 0x4B: - case 0x4C: - case 0x4D: - case 0x4E: - case 0x4F: - case 0x50: - case 0x51: - case 0x52: - case 0x53: - case 0x54: - case 0x55: - case 0x56: - case 0x57: - case 0x58: // Binary data (one-byte uint8_t for n follows) - case 0x59: // Binary data (two-byte uint16_t for n follow) - case 0x5A: // Binary data (four-byte uint32_t for n follow) - case 0x5B: // Binary data (eight-byte uint64_t for n follow) - case 0x5F: // Binary data (indefinite length) - { - binary_t b; - return get_cbor_binary(b) && sax->binary(b); - } - - // UTF-8 string (0x00..0x17 bytes follow) - case 0x60: - case 0x61: - case 0x62: - case 0x63: - case 0x64: - case 0x65: - case 0x66: - case 0x67: - case 0x68: - case 0x69: - case 0x6A: - case 0x6B: - case 0x6C: - case 0x6D: - case 0x6E: - case 0x6F: - case 0x70: - case 0x71: - case 0x72: - case 0x73: - case 0x74: - case 0x75: - case 0x76: - case 0x77: - case 0x78: // UTF-8 string (one-byte uint8_t for n follows) - case 0x79: // UTF-8 string (two-byte uint16_t for n follow) - case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) - case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) - case 0x7F: // UTF-8 string (indefinite length) - { - string_t s; - return get_cbor_string(s) && sax->string(s); - } - - // array (0x00..0x17 data items follow) - case 0x80: - case 0x81: - case 0x82: - case 0x83: - case 0x84: - case 0x85: - case 0x86: - case 0x87: - case 0x88: - case 0x89: - case 0x8A: - case 0x8B: - case 0x8C: - case 0x8D: - case 0x8E: - case 0x8F: - case 0x90: - case 0x91: - case 0x92: - case 0x93: - case 0x94: - case 0x95: - case 0x96: - case 0x97: - return get_cbor_array(static_cast(static_cast(current) & 0x1Fu), tag_handler); - - case 0x98: // array (one-byte uint8_t for n follows) - { - std::uint8_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); - } - - case 0x99: // array (two-byte uint16_t for n follow) - { - std::uint16_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); - } - - case 0x9A: // array (four-byte uint32_t for n follow) - { - std::uint32_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); - } - - case 0x9B: // array (eight-byte uint64_t for n follow) - { - std::uint64_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_array(detail::conditional_static_cast(len), tag_handler); - } - - case 0x9F: // array (indefinite length) - return get_cbor_array(std::size_t(-1), tag_handler); - - // map (0x00..0x17 pairs of data items follow) - case 0xA0: - case 0xA1: - case 0xA2: - case 0xA3: - case 0xA4: - case 0xA5: - case 0xA6: - case 0xA7: - case 0xA8: - case 0xA9: - case 0xAA: - case 0xAB: - case 0xAC: - case 0xAD: - case 0xAE: - case 0xAF: - case 0xB0: - case 0xB1: - case 0xB2: - case 0xB3: - case 0xB4: - case 0xB5: - case 0xB6: - case 0xB7: - return get_cbor_object(static_cast(static_cast(current) & 0x1Fu), tag_handler); - - case 0xB8: // map (one-byte uint8_t for n follows) - { - std::uint8_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); - } - - case 0xB9: // map (two-byte uint16_t for n follow) - { - std::uint16_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); - } - - case 0xBA: // map (four-byte uint32_t for n follow) - { - std::uint32_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); - } - - case 0xBB: // map (eight-byte uint64_t for n follow) - { - std::uint64_t len{}; - return get_number(input_format_t::cbor, len) && get_cbor_object(detail::conditional_static_cast(len), tag_handler); - } - - case 0xBF: // map (indefinite length) - return get_cbor_object(std::size_t(-1), tag_handler); - - case 0xC6: // tagged item - case 0xC7: - case 0xC8: - case 0xC9: - case 0xCA: - case 0xCB: - case 0xCC: - case 0xCD: - case 0xCE: - case 0xCF: - case 0xD0: - case 0xD1: - case 0xD2: - case 0xD3: - case 0xD4: - case 0xD8: // tagged item (1 bytes follow) - case 0xD9: // tagged item (2 bytes follow) - case 0xDA: // tagged item (4 bytes follow) - case 0xDB: // tagged item (8 bytes follow) - { - switch (tag_handler) - { - case cbor_tag_handler_t::error: - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); - } - - case cbor_tag_handler_t::ignore: - { - // ignore binary subtype - switch (current) - { - case 0xD8: - { - std::uint8_t subtype_to_ignore{}; - get_number(input_format_t::cbor, subtype_to_ignore); - break; - } - case 0xD9: - { - std::uint16_t subtype_to_ignore{}; - get_number(input_format_t::cbor, subtype_to_ignore); - break; - } - case 0xDA: - { - std::uint32_t subtype_to_ignore{}; - get_number(input_format_t::cbor, subtype_to_ignore); - break; - } - case 0xDB: - { - std::uint64_t subtype_to_ignore{}; - get_number(input_format_t::cbor, subtype_to_ignore); - break; - } - default: - break; - } - return parse_cbor_internal(true, tag_handler); - } - - case cbor_tag_handler_t::store: - { - binary_t b; - // use binary subtype and store in binary container - switch (current) - { - case 0xD8: - { - std::uint8_t subtype{}; - get_number(input_format_t::cbor, subtype); - b.set_subtype(detail::conditional_static_cast(subtype)); - break; - } - case 0xD9: - { - std::uint16_t subtype{}; - get_number(input_format_t::cbor, subtype); - b.set_subtype(detail::conditional_static_cast(subtype)); - break; - } - case 0xDA: - { - std::uint32_t subtype{}; - get_number(input_format_t::cbor, subtype); - b.set_subtype(detail::conditional_static_cast(subtype)); - break; - } - case 0xDB: - { - std::uint64_t subtype{}; - get_number(input_format_t::cbor, subtype); - b.set_subtype(detail::conditional_static_cast(subtype)); - break; - } - default: - return parse_cbor_internal(true, tag_handler); - } - get(); - return get_cbor_binary(b) && sax->binary(b); - } - - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - return false; // LCOV_EXCL_LINE - } - } - - case 0xF4: // false - return sax->boolean(false); - - case 0xF5: // true - return sax->boolean(true); - - case 0xF6: // null - return sax->null(); - - case 0xF9: // Half-Precision Float (two-byte IEEE 754) - { - const auto byte1_raw = get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number"))) - { - return false; - } - const auto byte2_raw = get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number"))) - { - return false; - } - - const auto byte1 = static_cast(byte1_raw); - const auto byte2 = static_cast(byte2_raw); - - // code from RFC 7049, Appendix D, Figure 3: - // As half-precision floating-point numbers were only added - // to IEEE 754 in 2008, today's programming platforms often - // still only have limited support for them. It is very - // easy to include at least decoding support for them even - // without such support. An example of a small decoder for - // half-precision floating-point numbers in the C language - // is shown in Fig. 3. - const auto half = static_cast((byte1 << 8u) + byte2); - const double val = [&half] - { - const int exp = (half >> 10u) & 0x1Fu; - const unsigned int mant = half & 0x3FFu; - JSON_ASSERT(0 <= exp&& exp <= 32); - JSON_ASSERT(mant <= 1024); - switch (exp) - { - case 0: - return std::ldexp(mant, -24); - case 31: - return (mant == 0) - ? std::numeric_limits::infinity() - : std::numeric_limits::quiet_NaN(); - default: - return std::ldexp(mant + 1024, exp - 25); - } - }(); - return sax->number_float((half & 0x8000u) != 0 - ? static_cast(-val) - : static_cast(val), ""); - } - - case 0xFA: // Single-Precision Float (four-byte IEEE 754) - { - float number{}; - return get_number(input_format_t::cbor, number) && sax->number_float(static_cast(number), ""); - } - - case 0xFB: // Double-Precision Float (eight-byte IEEE 754) - { - double number{}; - return get_number(input_format_t::cbor, number) && sax->number_float(static_cast(number), ""); - } - - default: // anything else (0xFF is handled inside the other types) - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); - } - } - } - - /*! - @brief reads a CBOR string - - This function first reads starting bytes to determine the expected - string length and then copies this number of bytes into a string. - Additionally, CBOR's strings with indefinite lengths are supported. - - @param[out] result created string - - @return whether string creation completed - */ - bool get_cbor_string(string_t& result) - { - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "string"))) - { - return false; - } - - switch (current) - { - // UTF-8 string (0x00..0x17 bytes follow) - case 0x60: - case 0x61: - case 0x62: - case 0x63: - case 0x64: - case 0x65: - case 0x66: - case 0x67: - case 0x68: - case 0x69: - case 0x6A: - case 0x6B: - case 0x6C: - case 0x6D: - case 0x6E: - case 0x6F: - case 0x70: - case 0x71: - case 0x72: - case 0x73: - case 0x74: - case 0x75: - case 0x76: - case 0x77: - { - return get_string(input_format_t::cbor, static_cast(current) & 0x1Fu, result); - } - - case 0x78: // UTF-8 string (one-byte uint8_t for n follows) - { - std::uint8_t len{}; - return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); - } - - case 0x79: // UTF-8 string (two-byte uint16_t for n follow) - { - std::uint16_t len{}; - return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); - } - - case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) - { - std::uint32_t len{}; - return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); - } - - case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) - { - std::uint64_t len{}; - return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); - } - - case 0x7F: // UTF-8 string (indefinite length) - { - while (get() != 0xFF) - { - string_t chunk; - if (!get_cbor_string(chunk)) - { - return false; - } - result.append(chunk); - } - return true; - } - - default: - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x" + last_token, "string"), BasicJsonType())); - } - } - } - - /*! - @brief reads a CBOR byte array - - This function first reads starting bytes to determine the expected - byte array length and then copies this number of bytes into the byte array. - Additionally, CBOR's byte arrays with indefinite lengths are supported. - - @param[out] result created byte array - - @return whether byte array creation completed - */ - bool get_cbor_binary(binary_t& result) - { - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "binary"))) - { - return false; - } - - switch (current) - { - // Binary data (0x00..0x17 bytes follow) - case 0x40: - case 0x41: - case 0x42: - case 0x43: - case 0x44: - case 0x45: - case 0x46: - case 0x47: - case 0x48: - case 0x49: - case 0x4A: - case 0x4B: - case 0x4C: - case 0x4D: - case 0x4E: - case 0x4F: - case 0x50: - case 0x51: - case 0x52: - case 0x53: - case 0x54: - case 0x55: - case 0x56: - case 0x57: - { - return get_binary(input_format_t::cbor, static_cast(current) & 0x1Fu, result); - } - - case 0x58: // Binary data (one-byte uint8_t for n follows) - { - std::uint8_t len{}; - return get_number(input_format_t::cbor, len) && - get_binary(input_format_t::cbor, len, result); - } - - case 0x59: // Binary data (two-byte uint16_t for n follow) - { - std::uint16_t len{}; - return get_number(input_format_t::cbor, len) && - get_binary(input_format_t::cbor, len, result); - } - - case 0x5A: // Binary data (four-byte uint32_t for n follow) - { - std::uint32_t len{}; - return get_number(input_format_t::cbor, len) && - get_binary(input_format_t::cbor, len, result); - } - - case 0x5B: // Binary data (eight-byte uint64_t for n follow) - { - std::uint64_t len{}; - return get_number(input_format_t::cbor, len) && - get_binary(input_format_t::cbor, len, result); - } - - case 0x5F: // Binary data (indefinite length) - { - while (get() != 0xFF) - { - binary_t chunk; - if (!get_cbor_binary(chunk)) - { - return false; - } - result.insert(result.end(), chunk.begin(), chunk.end()); - } - return true; - } - - default: - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x40-0x5B) or indefinite binary array type (0x5F); last byte: 0x" + last_token, "binary"), BasicJsonType())); - } - } - } - - /*! - @param[in] len the length of the array or std::size_t(-1) for an - array of indefinite size - @param[in] tag_handler how CBOR tags should be treated - @return whether array creation completed - */ - bool get_cbor_array(const std::size_t len, - const cbor_tag_handler_t tag_handler) - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len))) - { - return false; - } - - if (len != std::size_t(-1)) - { - for (std::size_t i = 0; i < len; ++i) - { - if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) - { - return false; - } - } - } - else - { - while (get() != 0xFF) - { - if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(false, tag_handler))) - { - return false; - } - } - } - - return sax->end_array(); - } - - /*! - @param[in] len the length of the object or std::size_t(-1) for an - object of indefinite size - @param[in] tag_handler how CBOR tags should be treated - @return whether object creation completed - */ - bool get_cbor_object(const std::size_t len, - const cbor_tag_handler_t tag_handler) - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len))) - { - return false; - } - - if (len != 0) - { - string_t key; - if (len != std::size_t(-1)) - { - for (std::size_t i = 0; i < len; ++i) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key))) - { - return false; - } - - if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) - { - return false; - } - key.clear(); - } - } - else - { - while (get() != 0xFF) - { - if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key))) - { - return false; - } - - if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) - { - return false; - } - key.clear(); - } - } - } - - return sax->end_object(); - } - - ///////////// - // MsgPack // - ///////////// - - /*! - @return whether a valid MessagePack value was passed to the SAX parser - */ - bool parse_msgpack_internal() - { - switch (get()) - { - // EOF - case std::char_traits::eof(): - return unexpect_eof(input_format_t::msgpack, "value"); - - // positive fixint - case 0x00: - case 0x01: - case 0x02: - case 0x03: - case 0x04: - case 0x05: - case 0x06: - case 0x07: - case 0x08: - case 0x09: - case 0x0A: - case 0x0B: - case 0x0C: - case 0x0D: - case 0x0E: - case 0x0F: - case 0x10: - case 0x11: - case 0x12: - case 0x13: - case 0x14: - case 0x15: - case 0x16: - case 0x17: - case 0x18: - case 0x19: - case 0x1A: - case 0x1B: - case 0x1C: - case 0x1D: - case 0x1E: - case 0x1F: - case 0x20: - case 0x21: - case 0x22: - case 0x23: - case 0x24: - case 0x25: - case 0x26: - case 0x27: - case 0x28: - case 0x29: - case 0x2A: - case 0x2B: - case 0x2C: - case 0x2D: - case 0x2E: - case 0x2F: - case 0x30: - case 0x31: - case 0x32: - case 0x33: - case 0x34: - case 0x35: - case 0x36: - case 0x37: - case 0x38: - case 0x39: - case 0x3A: - case 0x3B: - case 0x3C: - case 0x3D: - case 0x3E: - case 0x3F: - case 0x40: - case 0x41: - case 0x42: - case 0x43: - case 0x44: - case 0x45: - case 0x46: - case 0x47: - case 0x48: - case 0x49: - case 0x4A: - case 0x4B: - case 0x4C: - case 0x4D: - case 0x4E: - case 0x4F: - case 0x50: - case 0x51: - case 0x52: - case 0x53: - case 0x54: - case 0x55: - case 0x56: - case 0x57: - case 0x58: - case 0x59: - case 0x5A: - case 0x5B: - case 0x5C: - case 0x5D: - case 0x5E: - case 0x5F: - case 0x60: - case 0x61: - case 0x62: - case 0x63: - case 0x64: - case 0x65: - case 0x66: - case 0x67: - case 0x68: - case 0x69: - case 0x6A: - case 0x6B: - case 0x6C: - case 0x6D: - case 0x6E: - case 0x6F: - case 0x70: - case 0x71: - case 0x72: - case 0x73: - case 0x74: - case 0x75: - case 0x76: - case 0x77: - case 0x78: - case 0x79: - case 0x7A: - case 0x7B: - case 0x7C: - case 0x7D: - case 0x7E: - case 0x7F: - return sax->number_unsigned(static_cast(current)); - - // fixmap - case 0x80: - case 0x81: - case 0x82: - case 0x83: - case 0x84: - case 0x85: - case 0x86: - case 0x87: - case 0x88: - case 0x89: - case 0x8A: - case 0x8B: - case 0x8C: - case 0x8D: - case 0x8E: - case 0x8F: - return get_msgpack_object(static_cast(static_cast(current) & 0x0Fu)); - - // fixarray - case 0x90: - case 0x91: - case 0x92: - case 0x93: - case 0x94: - case 0x95: - case 0x96: - case 0x97: - case 0x98: - case 0x99: - case 0x9A: - case 0x9B: - case 0x9C: - case 0x9D: - case 0x9E: - case 0x9F: - return get_msgpack_array(static_cast(static_cast(current) & 0x0Fu)); - - // fixstr - case 0xA0: - case 0xA1: - case 0xA2: - case 0xA3: - case 0xA4: - case 0xA5: - case 0xA6: - case 0xA7: - case 0xA8: - case 0xA9: - case 0xAA: - case 0xAB: - case 0xAC: - case 0xAD: - case 0xAE: - case 0xAF: - case 0xB0: - case 0xB1: - case 0xB2: - case 0xB3: - case 0xB4: - case 0xB5: - case 0xB6: - case 0xB7: - case 0xB8: - case 0xB9: - case 0xBA: - case 0xBB: - case 0xBC: - case 0xBD: - case 0xBE: - case 0xBF: - case 0xD9: // str 8 - case 0xDA: // str 16 - case 0xDB: // str 32 - { - string_t s; - return get_msgpack_string(s) && sax->string(s); - } - - case 0xC0: // nil - return sax->null(); - - case 0xC2: // false - return sax->boolean(false); - - case 0xC3: // true - return sax->boolean(true); - - case 0xC4: // bin 8 - case 0xC5: // bin 16 - case 0xC6: // bin 32 - case 0xC7: // ext 8 - case 0xC8: // ext 16 - case 0xC9: // ext 32 - case 0xD4: // fixext 1 - case 0xD5: // fixext 2 - case 0xD6: // fixext 4 - case 0xD7: // fixext 8 - case 0xD8: // fixext 16 - { - binary_t b; - return get_msgpack_binary(b) && sax->binary(b); - } - - case 0xCA: // float 32 - { - float number{}; - return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast(number), ""); - } - - case 0xCB: // float 64 - { - double number{}; - return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast(number), ""); - } - - case 0xCC: // uint 8 - { - std::uint8_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); - } - - case 0xCD: // uint 16 - { - std::uint16_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); - } - - case 0xCE: // uint 32 - { - std::uint32_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); - } - - case 0xCF: // uint 64 - { - std::uint64_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); - } - - case 0xD0: // int 8 - { - std::int8_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_integer(number); - } - - case 0xD1: // int 16 - { - std::int16_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_integer(number); - } - - case 0xD2: // int 32 - { - std::int32_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_integer(number); - } - - case 0xD3: // int 64 - { - std::int64_t number{}; - return get_number(input_format_t::msgpack, number) && sax->number_integer(number); - } - - case 0xDC: // array 16 - { - std::uint16_t len{}; - return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast(len)); - } - - case 0xDD: // array 32 - { - std::uint32_t len{}; - return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast(len)); - } - - case 0xDE: // map 16 - { - std::uint16_t len{}; - return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast(len)); - } - - case 0xDF: // map 32 - { - std::uint32_t len{}; - return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast(len)); - } - - // negative fixint - case 0xE0: - case 0xE1: - case 0xE2: - case 0xE3: - case 0xE4: - case 0xE5: - case 0xE6: - case 0xE7: - case 0xE8: - case 0xE9: - case 0xEA: - case 0xEB: - case 0xEC: - case 0xED: - case 0xEE: - case 0xEF: - case 0xF0: - case 0xF1: - case 0xF2: - case 0xF3: - case 0xF4: - case 0xF5: - case 0xF6: - case 0xF7: - case 0xF8: - case 0xF9: - case 0xFA: - case 0xFB: - case 0xFC: - case 0xFD: - case 0xFE: - case 0xFF: - return sax->number_integer(static_cast(current)); - - default: // anything else - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::msgpack, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); - } - } - } - - /*! - @brief reads a MessagePack string - - This function first reads starting bytes to determine the expected - string length and then copies this number of bytes into a string. - - @param[out] result created string - - @return whether string creation completed - */ - bool get_msgpack_string(string_t& result) - { - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::msgpack, "string"))) - { - return false; - } - - switch (current) - { - // fixstr - case 0xA0: - case 0xA1: - case 0xA2: - case 0xA3: - case 0xA4: - case 0xA5: - case 0xA6: - case 0xA7: - case 0xA8: - case 0xA9: - case 0xAA: - case 0xAB: - case 0xAC: - case 0xAD: - case 0xAE: - case 0xAF: - case 0xB0: - case 0xB1: - case 0xB2: - case 0xB3: - case 0xB4: - case 0xB5: - case 0xB6: - case 0xB7: - case 0xB8: - case 0xB9: - case 0xBA: - case 0xBB: - case 0xBC: - case 0xBD: - case 0xBE: - case 0xBF: - { - return get_string(input_format_t::msgpack, static_cast(current) & 0x1Fu, result); - } - - case 0xD9: // str 8 - { - std::uint8_t len{}; - return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); - } - - case 0xDA: // str 16 - { - std::uint16_t len{}; - return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); - } - - case 0xDB: // str 32 - { - std::uint32_t len{}; - return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); - } - - default: - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::msgpack, "expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x" + last_token, "string"), BasicJsonType())); - } - } - } - - /*! - @brief reads a MessagePack byte array - - This function first reads starting bytes to determine the expected - byte array length and then copies this number of bytes into a byte array. - - @param[out] result created byte array - - @return whether byte array creation completed - */ - bool get_msgpack_binary(binary_t& result) - { - // helper function to set the subtype - auto assign_and_return_true = [&result](std::int8_t subtype) - { - result.set_subtype(static_cast(subtype)); - return true; - }; - - switch (current) - { - case 0xC4: // bin 8 - { - std::uint8_t len{}; - return get_number(input_format_t::msgpack, len) && - get_binary(input_format_t::msgpack, len, result); - } - - case 0xC5: // bin 16 - { - std::uint16_t len{}; - return get_number(input_format_t::msgpack, len) && - get_binary(input_format_t::msgpack, len, result); - } - - case 0xC6: // bin 32 - { - std::uint32_t len{}; - return get_number(input_format_t::msgpack, len) && - get_binary(input_format_t::msgpack, len, result); - } - - case 0xC7: // ext 8 - { - std::uint8_t len{}; - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, len) && - get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, len, result) && - assign_and_return_true(subtype); - } - - case 0xC8: // ext 16 - { - std::uint16_t len{}; - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, len) && - get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, len, result) && - assign_and_return_true(subtype); - } - - case 0xC9: // ext 32 - { - std::uint32_t len{}; - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, len) && - get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, len, result) && - assign_and_return_true(subtype); - } - - case 0xD4: // fixext 1 - { - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, 1, result) && - assign_and_return_true(subtype); - } - - case 0xD5: // fixext 2 - { - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, 2, result) && - assign_and_return_true(subtype); - } - - case 0xD6: // fixext 4 - { - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, 4, result) && - assign_and_return_true(subtype); - } - - case 0xD7: // fixext 8 - { - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, 8, result) && - assign_and_return_true(subtype); - } - - case 0xD8: // fixext 16 - { - std::int8_t subtype{}; - return get_number(input_format_t::msgpack, subtype) && - get_binary(input_format_t::msgpack, 16, result) && - assign_and_return_true(subtype); - } - - default: // LCOV_EXCL_LINE - return false; // LCOV_EXCL_LINE - } - } - - /*! - @param[in] len the length of the array - @return whether array creation completed - */ - bool get_msgpack_array(const std::size_t len) - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len))) - { - return false; - } - - for (std::size_t i = 0; i < len; ++i) - { - if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal())) - { - return false; - } - } - - return sax->end_array(); - } - - /*! - @param[in] len the length of the object - @return whether object creation completed - */ - bool get_msgpack_object(const std::size_t len) - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len))) - { - return false; - } - - string_t key; - for (std::size_t i = 0; i < len; ++i) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!get_msgpack_string(key) || !sax->key(key))) - { - return false; - } - - if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal())) - { - return false; - } - key.clear(); - } - - return sax->end_object(); - } - - //////////// - // UBJSON // - //////////// - - /*! - @param[in] get_char whether a new character should be retrieved from the - input (true, default) or whether the last read - character should be considered instead - - @return whether a valid UBJSON value was passed to the SAX parser - */ - bool parse_ubjson_internal(const bool get_char = true) - { - return get_ubjson_value(get_char ? get_ignore_noop() : current); - } - - /*! - @brief reads a UBJSON string - - This function is either called after reading the 'S' byte explicitly - indicating a string, or in case of an object key where the 'S' byte can be - left out. - - @param[out] result created string - @param[in] get_char whether a new character should be retrieved from the - input (true, default) or whether the last read - character should be considered instead - - @return whether string creation completed - */ - bool get_ubjson_string(string_t& result, const bool get_char = true) - { - if (get_char) - { - get(); // TODO(niels): may we ignore N here? - } - - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value"))) - { - return false; - } - - switch (current) - { - case 'U': - { - std::uint8_t len{}; - return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); - } - - case 'i': - { - std::int8_t len{}; - return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); - } - - case 'I': - { - std::int16_t len{}; - return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); - } - - case 'l': - { - std::int32_t len{}; - return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); - } - - case 'L': - { - std::int64_t len{}; - return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); - } - - default: - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string"), BasicJsonType())); - } - } - - /*! - @param[out] result determined size - @return whether size determination completed - */ - bool get_ubjson_size_value(std::size_t& result) - { - switch (get_ignore_noop()) - { - case 'U': - { - std::uint8_t number{}; - if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) - { - return false; - } - result = static_cast(number); - return true; - } - - case 'i': - { - std::int8_t number{}; - if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) - { - return false; - } - result = static_cast(number); // NOLINT(bugprone-signed-char-misuse,cert-str34-c): number is not a char - return true; - } - - case 'I': - { - std::int16_t number{}; - if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) - { - return false; - } - result = static_cast(number); - return true; - } - - case 'l': - { - std::int32_t number{}; - if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) - { - return false; - } - result = static_cast(number); - return true; - } - - case 'L': - { - std::int64_t number{}; - if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) - { - return false; - } - result = static_cast(number); - return true; - } - - default: - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L) after '#'; last byte: 0x" + last_token, "size"), BasicJsonType())); - } - } - } - - /*! - @brief determine the type and size for a container - - In the optimized UBJSON format, a type and a size can be provided to allow - for a more compact representation. - - @param[out] result pair of the size and the type - - @return whether pair creation completed - */ - bool get_ubjson_size_type(std::pair& result) - { - result.first = string_t::npos; // size - result.second = 0; // type - - get_ignore_noop(); - - if (current == '$') - { - result.second = get(); // must not ignore 'N', because 'N' maybe the type - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "type"))) - { - return false; - } - - get_ignore_noop(); - if (JSON_HEDLEY_UNLIKELY(current != '#')) - { - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value"))) - { - return false; - } - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "expected '#' after type information; last byte: 0x" + last_token, "size"), BasicJsonType())); - } - - return get_ubjson_size_value(result.first); - } - - if (current == '#') - { - return get_ubjson_size_value(result.first); - } - - return true; - } - - /*! - @param prefix the previously read or set type prefix - @return whether value creation completed - */ - bool get_ubjson_value(const char_int_type prefix) - { - switch (prefix) - { - case std::char_traits::eof(): // EOF - return unexpect_eof(input_format_t::ubjson, "value"); - - case 'T': // true - return sax->boolean(true); - case 'F': // false - return sax->boolean(false); - - case 'Z': // null - return sax->null(); - - case 'U': - { - std::uint8_t number{}; - return get_number(input_format_t::ubjson, number) && sax->number_unsigned(number); - } - - case 'i': - { - std::int8_t number{}; - return get_number(input_format_t::ubjson, number) && sax->number_integer(number); - } - - case 'I': - { - std::int16_t number{}; - return get_number(input_format_t::ubjson, number) && sax->number_integer(number); - } - - case 'l': - { - std::int32_t number{}; - return get_number(input_format_t::ubjson, number) && sax->number_integer(number); - } - - case 'L': - { - std::int64_t number{}; - return get_number(input_format_t::ubjson, number) && sax->number_integer(number); - } - - case 'd': - { - float number{}; - return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast(number), ""); - } - - case 'D': - { - double number{}; - return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast(number), ""); - } - - case 'H': - { - return get_ubjson_high_precision_number(); - } - - case 'C': // char - { - get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "char"))) - { - return false; - } - if (JSON_HEDLEY_UNLIKELY(current > 127)) - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "byte after 'C' must be in range 0x00..0x7F; last byte: 0x" + last_token, "char"), BasicJsonType())); - } - string_t s(1, static_cast(current)); - return sax->string(s); - } - - case 'S': // string - { - string_t s; - return get_ubjson_string(s) && sax->string(s); - } - - case '[': // array - return get_ubjson_array(); - - case '{': // object - return get_ubjson_object(); - - default: // anything else - { - auto last_token = get_token_string(); - return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); - } - } - } - - /*! - @return whether array creation completed - */ - bool get_ubjson_array() - { - std::pair size_and_type; - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type))) - { - return false; - } - - if (size_and_type.first != string_t::npos) - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_array(size_and_type.first))) - { - return false; - } - - if (size_and_type.second != 0) - { - if (size_and_type.second != 'N') - { - for (std::size_t i = 0; i < size_and_type.first; ++i) - { - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second))) - { - return false; - } - } - } - } - else - { - for (std::size_t i = 0; i < size_and_type.first; ++i) - { - if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) - { - return false; - } - } - } - } - else - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1)))) - { - return false; - } - - while (current != ']') - { - if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal(false))) - { - return false; - } - get_ignore_noop(); - } - } - - return sax->end_array(); - } - - /*! - @return whether object creation completed - */ - bool get_ubjson_object() - { - std::pair size_and_type; - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type))) - { - return false; - } - - string_t key; - if (size_and_type.first != string_t::npos) - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_object(size_and_type.first))) - { - return false; - } - - if (size_and_type.second != 0) - { - for (std::size_t i = 0; i < size_and_type.first; ++i) - { - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key))) - { - return false; - } - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second))) - { - return false; - } - key.clear(); - } - } - else - { - for (std::size_t i = 0; i < size_and_type.first; ++i) - { - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key))) - { - return false; - } - if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) - { - return false; - } - key.clear(); - } - } - } - else - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1)))) - { - return false; - } - - while (current != '}') - { - if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key, false) || !sax->key(key))) - { - return false; - } - if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) - { - return false; - } - get_ignore_noop(); - key.clear(); - } - } - - return sax->end_object(); - } - - // Note, no reader for UBJSON binary types is implemented because they do - // not exist - - bool get_ubjson_high_precision_number() - { - // get size of following number string - std::size_t size{}; - auto res = get_ubjson_size_value(size); - if (JSON_HEDLEY_UNLIKELY(!res)) - { - return res; - } - - // get number string - std::vector number_vector; - for (std::size_t i = 0; i < size; ++i) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "number"))) - { - return false; - } - number_vector.push_back(static_cast(current)); - } - - // parse number string - using ia_type = decltype(detail::input_adapter(number_vector)); - auto number_lexer = detail::lexer(detail::input_adapter(number_vector), false); - const auto result_number = number_lexer.scan(); - const auto number_string = number_lexer.get_token_string(); - const auto result_remainder = number_lexer.scan(); - - using token_type = typename detail::lexer_base::token_type; - - if (JSON_HEDLEY_UNLIKELY(result_remainder != token_type::end_of_input)) - { - return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType())); - } - - switch (result_number) - { - case token_type::value_integer: - return sax->number_integer(number_lexer.get_number_integer()); - case token_type::value_unsigned: - return sax->number_unsigned(number_lexer.get_number_unsigned()); - case token_type::value_float: - return sax->number_float(number_lexer.get_number_float(), std::move(number_string)); - case token_type::uninitialized: - case token_type::literal_true: - case token_type::literal_false: - case token_type::literal_null: - case token_type::value_string: - case token_type::begin_array: - case token_type::begin_object: - case token_type::end_array: - case token_type::end_object: - case token_type::name_separator: - case token_type::value_separator: - case token_type::parse_error: - case token_type::end_of_input: - case token_type::literal_or_value: - default: - return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType())); - } - } - - /////////////////////// - // Utility functions // - /////////////////////// - - /*! - @brief get next character from the input - - This function provides the interface to the used input adapter. It does - not throw in case the input reached EOF, but returns a -'ve valued - `std::char_traits::eof()` in that case. - - @return character read from the input - */ - char_int_type get() - { - ++chars_read; - return current = ia.get_character(); - } - - /*! - @return character read from the input after ignoring all 'N' entries - */ - char_int_type get_ignore_noop() - { - do - { - get(); - } - while (current == 'N'); - - return current; - } - - /* - @brief read a number from the input - - @tparam NumberType the type of the number - @param[in] format the current format (for diagnostics) - @param[out] result number of type @a NumberType - - @return whether conversion completed - - @note This function needs to respect the system's endianess, because - bytes in CBOR, MessagePack, and UBJSON are stored in network order - (big endian) and therefore need reordering on little endian systems. - */ - template - bool get_number(const input_format_t format, NumberType& result) - { - // step 1: read input into array with system's byte order - std::array vec{}; - for (std::size_t i = 0; i < sizeof(NumberType); ++i) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "number"))) - { - return false; - } - - // reverse byte order prior to conversion if necessary - if (is_little_endian != InputIsLittleEndian) - { - vec[sizeof(NumberType) - i - 1] = static_cast(current); - } - else - { - vec[i] = static_cast(current); // LCOV_EXCL_LINE - } - } - - // step 2: convert array into number of type T and return - std::memcpy(&result, vec.data(), sizeof(NumberType)); - return true; - } - - /*! - @brief create a string by reading characters from the input - - @tparam NumberType the type of the number - @param[in] format the current format (for diagnostics) - @param[in] len number of characters to read - @param[out] result string created by reading @a len bytes - - @return whether string creation completed - - @note We can not reserve @a len bytes for the result, because @a len - may be too large. Usually, @ref unexpect_eof() detects the end of - the input before we run out of string memory. - */ - template - bool get_string(const input_format_t format, - const NumberType len, - string_t& result) - { - bool success = true; - for (NumberType i = 0; i < len; i++) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "string"))) - { - success = false; - break; - } - result.push_back(static_cast(current)); - } - return success; - } - - /*! - @brief create a byte array by reading bytes from the input - - @tparam NumberType the type of the number - @param[in] format the current format (for diagnostics) - @param[in] len number of bytes to read - @param[out] result byte array created by reading @a len bytes - - @return whether byte array creation completed - - @note We can not reserve @a len bytes for the result, because @a len - may be too large. Usually, @ref unexpect_eof() detects the end of - the input before we run out of memory. - */ - template - bool get_binary(const input_format_t format, - const NumberType len, - binary_t& result) - { - bool success = true; - for (NumberType i = 0; i < len; i++) - { - get(); - if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "binary"))) - { - success = false; - break; - } - result.push_back(static_cast(current)); - } - return success; - } - - /*! - @param[in] format the current format (for diagnostics) - @param[in] context further context information (for diagnostics) - @return whether the last read character is not EOF - */ - JSON_HEDLEY_NON_NULL(3) - bool unexpect_eof(const input_format_t format, const char* context) const - { - if (JSON_HEDLEY_UNLIKELY(current == std::char_traits::eof())) - { - return sax->parse_error(chars_read, "", - parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context), BasicJsonType())); - } - return true; - } - - /*! - @return a string representation of the last read byte - */ - std::string get_token_string() const - { - std::array cr{{}}; - (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast(current)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - return std::string{cr.data()}; - } - - /*! - @param[in] format the current format - @param[in] detail a detailed error message - @param[in] context further context information - @return a message string to use in the parse_error exceptions - */ - std::string exception_message(const input_format_t format, - const std::string& detail, - const std::string& context) const - { - std::string error_msg = "syntax error while parsing "; - - switch (format) - { - case input_format_t::cbor: - error_msg += "CBOR"; - break; - - case input_format_t::msgpack: - error_msg += "MessagePack"; - break; - - case input_format_t::ubjson: - error_msg += "UBJSON"; - break; - - case input_format_t::bson: - error_msg += "BSON"; - break; - - case input_format_t::json: // LCOV_EXCL_LINE - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - - return error_msg + " " + context + ": " + detail; - } - - private: - /// input adapter - InputAdapterType ia; - - /// the current character - char_int_type current = std::char_traits::eof(); - - /// the number of characters read - std::size_t chars_read = 0; - - /// whether we can assume little endianess - const bool is_little_endian = little_endianess(); - - /// the SAX parser - json_sax_t* sax = nullptr; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - -// #include - - -#include // isfinite -#include // uint8_t -#include // function -#include // string -#include // move -#include // vector - -// #include - -// #include - -// #include - -// #include - -// #include - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -//////////// -// parser // -//////////// - -enum class parse_event_t : std::uint8_t -{ - /// the parser read `{` and started to process a JSON object - object_start, - /// the parser read `}` and finished processing a JSON object - object_end, - /// the parser read `[` and started to process a JSON array - array_start, - /// the parser read `]` and finished processing a JSON array - array_end, - /// the parser read a key of a value in an object - key, - /// the parser finished reading a JSON value - value -}; - -template -using parser_callback_t = - std::function; - -/*! -@brief syntax analysis - -This class implements a recursive descent parser. -*/ -template -class parser -{ - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using number_float_t = typename BasicJsonType::number_float_t; - using string_t = typename BasicJsonType::string_t; - using lexer_t = lexer; - using token_type = typename lexer_t::token_type; - - public: - /// a parser reading from an input adapter - explicit parser(InputAdapterType&& adapter, - const parser_callback_t cb = nullptr, - const bool allow_exceptions_ = true, - const bool skip_comments = false) - : callback(cb) - , m_lexer(std::move(adapter), skip_comments) - , allow_exceptions(allow_exceptions_) - { - // read first token - get_token(); - } - - /*! - @brief public parser interface - - @param[in] strict whether to expect the last token to be EOF - @param[in,out] result parsed JSON value - - @throw parse_error.101 in case of an unexpected token - @throw parse_error.102 if to_unicode fails or surrogate error - @throw parse_error.103 if to_unicode fails - */ - void parse(const bool strict, BasicJsonType& result) - { - if (callback) - { - json_sax_dom_callback_parser sdp(result, callback, allow_exceptions); - sax_parse_internal(&sdp); - - // in strict mode, input must be completely read - if (strict && (get_token() != token_type::end_of_input)) - { - sdp.parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), - exception_message(token_type::end_of_input, "value"), BasicJsonType())); - } - - // in case of an error, return discarded value - if (sdp.is_errored()) - { - result = value_t::discarded; - return; - } - - // set top-level value to null if it was discarded by the callback - // function - if (result.is_discarded()) - { - result = nullptr; - } - } - else - { - json_sax_dom_parser sdp(result, allow_exceptions); - sax_parse_internal(&sdp); - - // in strict mode, input must be completely read - if (strict && (get_token() != token_type::end_of_input)) - { - sdp.parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType())); - } - - // in case of an error, return discarded value - if (sdp.is_errored()) - { - result = value_t::discarded; - return; - } - } - - result.assert_invariant(); - } - - /*! - @brief public accept interface - - @param[in] strict whether to expect the last token to be EOF - @return whether the input is a proper JSON text - */ - bool accept(const bool strict = true) - { - json_sax_acceptor sax_acceptor; - return sax_parse(&sax_acceptor, strict); - } - - template - JSON_HEDLEY_NON_NULL(2) - bool sax_parse(SAX* sax, const bool strict = true) - { - (void)detail::is_sax_static_asserts {}; - const bool result = sax_parse_internal(sax); - - // strict mode: next byte must be EOF - if (result && strict && (get_token() != token_type::end_of_input)) - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType())); - } - - return result; - } - - private: - template - JSON_HEDLEY_NON_NULL(2) - bool sax_parse_internal(SAX* sax) - { - // stack to remember the hierarchy of structured values we are parsing - // true = array; false = object - std::vector states; - // value to avoid a goto (see comment where set to true) - bool skip_to_state_evaluation = false; - - while (true) - { - if (!skip_to_state_evaluation) - { - // invariant: get_token() was called before each iteration - switch (last_token) - { - case token_type::begin_object: - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1)))) - { - return false; - } - - // closing } -> we are done - if (get_token() == token_type::end_object) - { - if (JSON_HEDLEY_UNLIKELY(!sax->end_object())) - { - return false; - } - break; - } - - // parse key - if (JSON_HEDLEY_UNLIKELY(last_token != token_type::value_string)) - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType())); - } - if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string()))) - { - return false; - } - - // parse separator (:) - if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator)) - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType())); - } - - // remember we are now inside an object - states.push_back(false); - - // parse values - get_token(); - continue; - } - - case token_type::begin_array: - { - if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1)))) - { - return false; - } - - // closing ] -> we are done - if (get_token() == token_type::end_array) - { - if (JSON_HEDLEY_UNLIKELY(!sax->end_array())) - { - return false; - } - break; - } - - // remember we are now inside an array - states.push_back(true); - - // parse values (no need to call get_token) - continue; - } - - case token_type::value_float: - { - const auto res = m_lexer.get_number_float(); - - if (JSON_HEDLEY_UNLIKELY(!std::isfinite(res))) - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'", BasicJsonType())); - } - - if (JSON_HEDLEY_UNLIKELY(!sax->number_float(res, m_lexer.get_string()))) - { - return false; - } - - break; - } - - case token_type::literal_false: - { - if (JSON_HEDLEY_UNLIKELY(!sax->boolean(false))) - { - return false; - } - break; - } - - case token_type::literal_null: - { - if (JSON_HEDLEY_UNLIKELY(!sax->null())) - { - return false; - } - break; - } - - case token_type::literal_true: - { - if (JSON_HEDLEY_UNLIKELY(!sax->boolean(true))) - { - return false; - } - break; - } - - case token_type::value_integer: - { - if (JSON_HEDLEY_UNLIKELY(!sax->number_integer(m_lexer.get_number_integer()))) - { - return false; - } - break; - } - - case token_type::value_string: - { - if (JSON_HEDLEY_UNLIKELY(!sax->string(m_lexer.get_string()))) - { - return false; - } - break; - } - - case token_type::value_unsigned: - { - if (JSON_HEDLEY_UNLIKELY(!sax->number_unsigned(m_lexer.get_number_unsigned()))) - { - return false; - } - break; - } - - case token_type::parse_error: - { - // using "uninitialized" to avoid "expected" message - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::uninitialized, "value"), BasicJsonType())); - } - - case token_type::uninitialized: - case token_type::end_array: - case token_type::end_object: - case token_type::name_separator: - case token_type::value_separator: - case token_type::end_of_input: - case token_type::literal_or_value: - default: // the last token was unexpected - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::literal_or_value, "value"), BasicJsonType())); - } - } - } - else - { - skip_to_state_evaluation = false; - } - - // we reached this line after we successfully parsed a value - if (states.empty()) - { - // empty stack: we reached the end of the hierarchy: done - return true; - } - - if (states.back()) // array - { - // comma -> next value - if (get_token() == token_type::value_separator) - { - // parse a new value - get_token(); - continue; - } - - // closing ] - if (JSON_HEDLEY_LIKELY(last_token == token_type::end_array)) - { - if (JSON_HEDLEY_UNLIKELY(!sax->end_array())) - { - return false; - } - - // We are done with this array. Before we can parse a - // new value, we need to evaluate the new state first. - // By setting skip_to_state_evaluation to false, we - // are effectively jumping to the beginning of this if. - JSON_ASSERT(!states.empty()); - states.pop_back(); - skip_to_state_evaluation = true; - continue; - } - - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_array, "array"), BasicJsonType())); - } - - // states.back() is false -> object - - // comma -> next value - if (get_token() == token_type::value_separator) - { - // parse key - if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::value_string)) - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType())); - } - - if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string()))) - { - return false; - } - - // parse separator (:) - if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator)) - { - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType())); - } - - // parse values - get_token(); - continue; - } - - // closing } - if (JSON_HEDLEY_LIKELY(last_token == token_type::end_object)) - { - if (JSON_HEDLEY_UNLIKELY(!sax->end_object())) - { - return false; - } - - // We are done with this object. Before we can parse a - // new value, we need to evaluate the new state first. - // By setting skip_to_state_evaluation to false, we - // are effectively jumping to the beginning of this if. - JSON_ASSERT(!states.empty()); - states.pop_back(); - skip_to_state_evaluation = true; - continue; - } - - return sax->parse_error(m_lexer.get_position(), - m_lexer.get_token_string(), - parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_object, "object"), BasicJsonType())); - } - } - - /// get next token from lexer - token_type get_token() - { - return last_token = m_lexer.scan(); - } - - std::string exception_message(const token_type expected, const std::string& context) - { - std::string error_msg = "syntax error "; - - if (!context.empty()) - { - error_msg += "while parsing " + context + " "; - } - - error_msg += "- "; - - if (last_token == token_type::parse_error) - { - error_msg += std::string(m_lexer.get_error_message()) + "; last read: '" + - m_lexer.get_token_string() + "'"; - } - else - { - error_msg += "unexpected " + std::string(lexer_t::token_type_name(last_token)); - } - - if (expected != token_type::uninitialized) - { - error_msg += "; expected " + std::string(lexer_t::token_type_name(expected)); - } - - return error_msg; - } - - private: - /// callback function - const parser_callback_t callback = nullptr; - /// the type of the last read token - token_type last_token = token_type::uninitialized; - /// the lexer - lexer_t m_lexer; - /// whether to throw exceptions in case of errors - const bool allow_exceptions = true; -}; - -} // namespace detail -} // namespace nlohmann - -// #include - - -// #include - - -#include // ptrdiff_t -#include // numeric_limits - -// #include - - -namespace nlohmann -{ -namespace detail -{ -/* -@brief an iterator for primitive JSON types - -This class models an iterator for primitive JSON types (boolean, number, -string). It's only purpose is to allow the iterator/const_iterator classes -to "iterate" over primitive values. Internally, the iterator is modeled by -a `difference_type` variable. Value begin_value (`0`) models the begin, -end_value (`1`) models past the end. -*/ -class primitive_iterator_t -{ - private: - using difference_type = std::ptrdiff_t; - static constexpr difference_type begin_value = 0; - static constexpr difference_type end_value = begin_value + 1; - - JSON_PRIVATE_UNLESS_TESTED: - /// iterator as signed integer type - difference_type m_it = (std::numeric_limits::min)(); - - public: - constexpr difference_type get_value() const noexcept - { - return m_it; - } - - /// set iterator to a defined beginning - void set_begin() noexcept - { - m_it = begin_value; - } - - /// set iterator to a defined past the end - void set_end() noexcept - { - m_it = end_value; - } - - /// return whether the iterator can be dereferenced - constexpr bool is_begin() const noexcept - { - return m_it == begin_value; - } - - /// return whether the iterator is at end - constexpr bool is_end() const noexcept - { - return m_it == end_value; - } - - friend constexpr bool operator==(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it == rhs.m_it; - } - - friend constexpr bool operator<(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it < rhs.m_it; - } - - primitive_iterator_t operator+(difference_type n) noexcept - { - auto result = *this; - result += n; - return result; - } - - friend constexpr difference_type operator-(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it - rhs.m_it; - } - - primitive_iterator_t& operator++() noexcept - { - ++m_it; - return *this; - } - - primitive_iterator_t const operator++(int) noexcept // NOLINT(readability-const-return-type) - { - auto result = *this; - ++m_it; - return result; - } - - primitive_iterator_t& operator--() noexcept - { - --m_it; - return *this; - } - - primitive_iterator_t const operator--(int) noexcept // NOLINT(readability-const-return-type) - { - auto result = *this; - --m_it; - return result; - } - - primitive_iterator_t& operator+=(difference_type n) noexcept - { - m_it += n; - return *this; - } - - primitive_iterator_t& operator-=(difference_type n) noexcept - { - m_it -= n; - return *this; - } -}; -} // namespace detail -} // namespace nlohmann - - -namespace nlohmann -{ -namespace detail -{ -/*! -@brief an iterator value - -@note This structure could easily be a union, but MSVC currently does not allow -unions members with complex constructors, see https://github.com/nlohmann/json/pull/105. -*/ -template struct internal_iterator -{ - /// iterator for JSON objects - typename BasicJsonType::object_t::iterator object_iterator {}; - /// iterator for JSON arrays - typename BasicJsonType::array_t::iterator array_iterator {}; - /// generic iterator for all other types - primitive_iterator_t primitive_iterator {}; -}; -} // namespace detail -} // namespace nlohmann - -// #include - - -#include // iterator, random_access_iterator_tag, bidirectional_iterator_tag, advance, next -#include // conditional, is_const, remove_const - -// #include - -// #include - -// #include - -// #include - -// #include - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -// forward declare, to be able to friend it later on -template class iteration_proxy; -template class iteration_proxy_value; - -/*! -@brief a template for a bidirectional iterator for the @ref basic_json class -This class implements a both iterators (iterator and const_iterator) for the -@ref basic_json class. -@note An iterator is called *initialized* when a pointer to a JSON value has - been set (e.g., by a constructor or a copy assignment). If the iterator is - default-constructed, it is *uninitialized* and most methods are undefined. - **The library uses assertions to detect calls on uninitialized iterators.** -@requirement The class satisfies the following concept requirements: -- -[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator): - The iterator that can be moved can be moved in both directions (i.e. - incremented and decremented). -@since version 1.0.0, simplified in version 2.0.9, change to bidirectional - iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593) -*/ -template -class iter_impl -{ - /// the iterator with BasicJsonType of different const-ness - using other_iter_impl = iter_impl::value, typename std::remove_const::type, const BasicJsonType>::type>; - /// allow basic_json to access private members - friend other_iter_impl; - friend BasicJsonType; - friend iteration_proxy; - friend iteration_proxy_value; - - using object_t = typename BasicJsonType::object_t; - using array_t = typename BasicJsonType::array_t; - // make sure BasicJsonType is basic_json or const basic_json - static_assert(is_basic_json::type>::value, - "iter_impl only accepts (const) basic_json"); - - public: - - /// The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17. - /// The C++ Standard has never required user-defined iterators to derive from std::iterator. - /// A user-defined iterator should provide publicly accessible typedefs named - /// iterator_category, value_type, difference_type, pointer, and reference. - /// Note that value_type is required to be non-const, even for constant iterators. - using iterator_category = std::bidirectional_iterator_tag; - - /// the type of the values when the iterator is dereferenced - using value_type = typename BasicJsonType::value_type; - /// a type to represent differences between iterators - using difference_type = typename BasicJsonType::difference_type; - /// defines a pointer to the type iterated over (value_type) - using pointer = typename std::conditional::value, - typename BasicJsonType::const_pointer, - typename BasicJsonType::pointer>::type; - /// defines a reference to the type iterated over (value_type) - using reference = - typename std::conditional::value, - typename BasicJsonType::const_reference, - typename BasicJsonType::reference>::type; - - iter_impl() = default; - ~iter_impl() = default; - iter_impl(iter_impl&&) noexcept = default; - iter_impl& operator=(iter_impl&&) noexcept = default; - - /*! - @brief constructor for a given JSON instance - @param[in] object pointer to a JSON object for this iterator - @pre object != nullptr - @post The iterator is initialized; i.e. `m_object != nullptr`. - */ - explicit iter_impl(pointer object) noexcept : m_object(object) - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - m_it.object_iterator = typename object_t::iterator(); - break; - } - - case value_t::array: - { - m_it.array_iterator = typename array_t::iterator(); - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - m_it.primitive_iterator = primitive_iterator_t(); - break; - } - } - } - - /*! - @note The conventional copy constructor and copy assignment are implicitly - defined. Combined with the following converting constructor and - assignment, they support: (1) copy from iterator to iterator, (2) - copy from const iterator to const iterator, and (3) conversion from - iterator to const iterator. However conversion from const iterator - to iterator is not defined. - */ - - /*! - @brief const copy constructor - @param[in] other const iterator to copy from - @note This copy constructor had to be defined explicitly to circumvent a bug - occurring on msvc v19.0 compiler (VS 2015) debug build. For more - information refer to: https://github.com/nlohmann/json/issues/1608 - */ - iter_impl(const iter_impl& other) noexcept - : m_object(other.m_object), m_it(other.m_it) - {} - - /*! - @brief converting assignment - @param[in] other const iterator to copy from - @return const/non-const iterator - @note It is not checked whether @a other is initialized. - */ - iter_impl& operator=(const iter_impl& other) noexcept - { - if (&other != this) - { - m_object = other.m_object; - m_it = other.m_it; - } - return *this; - } - - /*! - @brief converting constructor - @param[in] other non-const iterator to copy from - @note It is not checked whether @a other is initialized. - */ - iter_impl(const iter_impl::type>& other) noexcept - : m_object(other.m_object), m_it(other.m_it) - {} - - /*! - @brief converting assignment - @param[in] other non-const iterator to copy from - @return const/non-const iterator - @note It is not checked whether @a other is initialized. - */ - iter_impl& operator=(const iter_impl::type>& other) noexcept // NOLINT(cert-oop54-cpp) - { - m_object = other.m_object; - m_it = other.m_it; - return *this; - } - - JSON_PRIVATE_UNLESS_TESTED: - /*! - @brief set the iterator to the first value - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - void set_begin() noexcept - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - m_it.object_iterator = m_object->m_value.object->begin(); - break; - } - - case value_t::array: - { - m_it.array_iterator = m_object->m_value.array->begin(); - break; - } - - case value_t::null: - { - // set to end so begin()==end() is true: null is empty - m_it.primitive_iterator.set_end(); - break; - } - - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - m_it.primitive_iterator.set_begin(); - break; - } - } - } - - /*! - @brief set the iterator past the last value - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - void set_end() noexcept - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - m_it.object_iterator = m_object->m_value.object->end(); - break; - } - - case value_t::array: - { - m_it.array_iterator = m_object->m_value.array->end(); - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - m_it.primitive_iterator.set_end(); - break; - } - } - } - - public: - /*! - @brief return a reference to the value pointed to by the iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - reference operator*() const - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end()); - return m_it.object_iterator->second; - } - - case value_t::array: - { - JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end()); - return *m_it.array_iterator; - } - - case value_t::null: - JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin())) - { - return *m_object; - } - - JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - } - } - } - - /*! - @brief dereference the iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - pointer operator->() const - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end()); - return &(m_it.object_iterator->second); - } - - case value_t::array: - { - JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end()); - return &*m_it.array_iterator; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin())) - { - return m_object; - } - - JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - } - } - } - - /*! - @brief post-increment (it++) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl const operator++(int) // NOLINT(readability-const-return-type) - { - auto result = *this; - ++(*this); - return result; - } - - /*! - @brief pre-increment (++it) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator++() - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - std::advance(m_it.object_iterator, 1); - break; - } - - case value_t::array: - { - std::advance(m_it.array_iterator, 1); - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - ++m_it.primitive_iterator; - break; - } - } - - return *this; - } - - /*! - @brief post-decrement (it--) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl const operator--(int) // NOLINT(readability-const-return-type) - { - auto result = *this; - --(*this); - return result; - } - - /*! - @brief pre-decrement (--it) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator--() - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - { - std::advance(m_it.object_iterator, -1); - break; - } - - case value_t::array: - { - std::advance(m_it.array_iterator, -1); - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - --m_it.primitive_iterator; - break; - } - } - - return *this; - } - - /*! - @brief comparison: equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - template < typename IterImpl, detail::enable_if_t < (std::is_same::value || std::is_same::value), std::nullptr_t > = nullptr > - bool operator==(const IterImpl& other) const - { - // if objects are not the same, the comparison is undefined - if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object)) - { - JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object)); - } - - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - return (m_it.object_iterator == other.m_it.object_iterator); - - case value_t::array: - return (m_it.array_iterator == other.m_it.array_iterator); - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - return (m_it.primitive_iterator == other.m_it.primitive_iterator); - } - } - - /*! - @brief comparison: not equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - template < typename IterImpl, detail::enable_if_t < (std::is_same::value || std::is_same::value), std::nullptr_t > = nullptr > - bool operator!=(const IterImpl& other) const - { - return !operator==(other); - } - - /*! - @brief comparison: smaller - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator<(const iter_impl& other) const - { - // if objects are not the same, the comparison is undefined - if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object)) - { - JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object)); - } - - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - JSON_THROW(invalid_iterator::create(213, "cannot compare order of object iterators", *m_object)); - - case value_t::array: - return (m_it.array_iterator < other.m_it.array_iterator); - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - return (m_it.primitive_iterator < other.m_it.primitive_iterator); - } - } - - /*! - @brief comparison: less than or equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator<=(const iter_impl& other) const - { - return !other.operator < (*this); - } - - /*! - @brief comparison: greater than - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator>(const iter_impl& other) const - { - return !operator<=(other); - } - - /*! - @brief comparison: greater than or equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator>=(const iter_impl& other) const - { - return !operator<(other); - } - - /*! - @brief add to iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator+=(difference_type i) - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object)); - - case value_t::array: - { - std::advance(m_it.array_iterator, i); - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - m_it.primitive_iterator += i; - break; - } - } - - return *this; - } - - /*! - @brief subtract from iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator-=(difference_type i) - { - return operator+=(-i); - } - - /*! - @brief add to iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl operator+(difference_type i) const - { - auto result = *this; - result += i; - return result; - } - - /*! - @brief addition of distance and iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - friend iter_impl operator+(difference_type i, const iter_impl& it) - { - auto result = it; - result += i; - return result; - } - - /*! - @brief subtract from iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl operator-(difference_type i) const - { - auto result = *this; - result -= i; - return result; - } - - /*! - @brief return difference - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - difference_type operator-(const iter_impl& other) const - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object)); - - case value_t::array: - return m_it.array_iterator - other.m_it.array_iterator; - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - return m_it.primitive_iterator - other.m_it.primitive_iterator; - } - } - - /*! - @brief access to successor - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - reference operator[](difference_type n) const - { - JSON_ASSERT(m_object != nullptr); - - switch (m_object->m_type) - { - case value_t::object: - JSON_THROW(invalid_iterator::create(208, "cannot use operator[] for object iterators", *m_object)); - - case value_t::array: - return *std::next(m_it.array_iterator, n); - - case value_t::null: - JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.get_value() == -n)) - { - return *m_object; - } - - JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - } - } - } - - /*! - @brief return the key of an object iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - const typename object_t::key_type& key() const - { - JSON_ASSERT(m_object != nullptr); - - if (JSON_HEDLEY_LIKELY(m_object->is_object())) - { - return m_it.object_iterator->first; - } - - JSON_THROW(invalid_iterator::create(207, "cannot use key() for non-object iterators", *m_object)); - } - - /*! - @brief return the value of an iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - reference value() const - { - return operator*(); - } - - JSON_PRIVATE_UNLESS_TESTED: - /// associated JSON instance - pointer m_object = nullptr; - /// the actual iterator of the associated instance - internal_iterator::type> m_it {}; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - - -#include // ptrdiff_t -#include // reverse_iterator -#include // declval - -namespace nlohmann -{ -namespace detail -{ -////////////////////// -// reverse_iterator // -////////////////////// - -/*! -@brief a template for a reverse iterator class - -@tparam Base the base iterator type to reverse. Valid types are @ref -iterator (to create @ref reverse_iterator) and @ref const_iterator (to -create @ref const_reverse_iterator). - -@requirement The class satisfies the following concept requirements: -- -[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator): - The iterator that can be moved can be moved in both directions (i.e. - incremented and decremented). -- [OutputIterator](https://en.cppreference.com/w/cpp/named_req/OutputIterator): - It is possible to write to the pointed-to element (only if @a Base is - @ref iterator). - -@since version 1.0.0 -*/ -template -class json_reverse_iterator : public std::reverse_iterator -{ - public: - using difference_type = std::ptrdiff_t; - /// shortcut to the reverse iterator adapter - using base_iterator = std::reverse_iterator; - /// the reference type for the pointed-to element - using reference = typename Base::reference; - - /// create reverse iterator from iterator - explicit json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept - : base_iterator(it) {} - - /// create reverse iterator from base class - explicit json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {} - - /// post-increment (it++) - json_reverse_iterator const operator++(int) // NOLINT(readability-const-return-type) - { - return static_cast(base_iterator::operator++(1)); - } - - /// pre-increment (++it) - json_reverse_iterator& operator++() - { - return static_cast(base_iterator::operator++()); - } - - /// post-decrement (it--) - json_reverse_iterator const operator--(int) // NOLINT(readability-const-return-type) - { - return static_cast(base_iterator::operator--(1)); - } - - /// pre-decrement (--it) - json_reverse_iterator& operator--() - { - return static_cast(base_iterator::operator--()); - } - - /// add to iterator - json_reverse_iterator& operator+=(difference_type i) - { - return static_cast(base_iterator::operator+=(i)); - } - - /// add to iterator - json_reverse_iterator operator+(difference_type i) const - { - return static_cast(base_iterator::operator+(i)); - } - - /// subtract from iterator - json_reverse_iterator operator-(difference_type i) const - { - return static_cast(base_iterator::operator-(i)); - } - - /// return difference - difference_type operator-(const json_reverse_iterator& other) const - { - return base_iterator(*this) - base_iterator(other); - } - - /// access to successor - reference operator[](difference_type n) const - { - return *(this->operator+(n)); - } - - /// return the key of an object iterator - auto key() const -> decltype(std::declval().key()) - { - auto it = --this->base(); - return it.key(); - } - - /// return the value of an iterator - reference value() const - { - auto it = --this->base(); - return it.operator * (); - } -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - - -#include // all_of -#include // isdigit -#include // max -#include // accumulate -#include // string -#include // move -#include // vector - -// #include - -// #include - -// #include - -// #include - - -namespace nlohmann -{ -template -class json_pointer -{ - // allow basic_json to access private members - NLOHMANN_BASIC_JSON_TPL_DECLARATION - friend class basic_json; - - public: - /*! - @brief create JSON pointer - - Create a JSON pointer according to the syntax described in - [Section 3 of RFC6901](https://tools.ietf.org/html/rfc6901#section-3). - - @param[in] s string representing the JSON pointer; if omitted, the empty - string is assumed which references the whole JSON value - - @throw parse_error.107 if the given JSON pointer @a s is nonempty and does - not begin with a slash (`/`); see example below - - @throw parse_error.108 if a tilde (`~`) in the given JSON pointer @a s is - not followed by `0` (representing `~`) or `1` (representing `/`); see - example below - - @liveexample{The example shows the construction several valid JSON pointers - as well as the exceptional behavior.,json_pointer} - - @since version 2.0.0 - */ - explicit json_pointer(const std::string& s = "") - : reference_tokens(split(s)) - {} - - /*! - @brief return a string representation of the JSON pointer - - @invariant For each JSON pointer `ptr`, it holds: - @code {.cpp} - ptr == json_pointer(ptr.to_string()); - @endcode - - @return a string representation of the JSON pointer - - @liveexample{The example shows the result of `to_string`.,json_pointer__to_string} - - @since version 2.0.0 - */ - std::string to_string() const - { - return std::accumulate(reference_tokens.begin(), reference_tokens.end(), - std::string{}, - [](const std::string & a, const std::string & b) - { - return a + "/" + detail::escape(b); - }); - } - - /// @copydoc to_string() - operator std::string() const - { - return to_string(); - } - - /*! - @brief append another JSON pointer at the end of this JSON pointer - - @param[in] ptr JSON pointer to append - @return JSON pointer with @a ptr appended - - @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add} - - @complexity Linear in the length of @a ptr. - - @sa see @ref operator/=(std::string) to append a reference token - @sa see @ref operator/=(std::size_t) to append an array index - @sa see @ref operator/(const json_pointer&, const json_pointer&) for a binary operator - - @since version 3.6.0 - */ - json_pointer& operator/=(const json_pointer& ptr) - { - reference_tokens.insert(reference_tokens.end(), - ptr.reference_tokens.begin(), - ptr.reference_tokens.end()); - return *this; - } - - /*! - @brief append an unescaped reference token at the end of this JSON pointer - - @param[in] token reference token to append - @return JSON pointer with @a token appended without escaping @a token - - @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add} - - @complexity Amortized constant. - - @sa see @ref operator/=(const json_pointer&) to append a JSON pointer - @sa see @ref operator/=(std::size_t) to append an array index - @sa see @ref operator/(const json_pointer&, std::size_t) for a binary operator - - @since version 3.6.0 - */ - json_pointer& operator/=(std::string token) - { - push_back(std::move(token)); - return *this; - } - - /*! - @brief append an array index at the end of this JSON pointer - - @param[in] array_idx array index to append - @return JSON pointer with @a array_idx appended - - @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add} - - @complexity Amortized constant. - - @sa see @ref operator/=(const json_pointer&) to append a JSON pointer - @sa see @ref operator/=(std::string) to append a reference token - @sa see @ref operator/(const json_pointer&, std::string) for a binary operator - - @since version 3.6.0 - */ - json_pointer& operator/=(std::size_t array_idx) - { - return *this /= std::to_string(array_idx); - } - - /*! - @brief create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer - - @param[in] lhs JSON pointer - @param[in] rhs JSON pointer - @return a new JSON pointer with @a rhs appended to @a lhs - - @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary} - - @complexity Linear in the length of @a lhs and @a rhs. - - @sa see @ref operator/=(const json_pointer&) to append a JSON pointer - - @since version 3.6.0 - */ - friend json_pointer operator/(const json_pointer& lhs, - const json_pointer& rhs) - { - return json_pointer(lhs) /= rhs; - } - - /*! - @brief create a new JSON pointer by appending the unescaped token at the end of the JSON pointer - - @param[in] ptr JSON pointer - @param[in] token reference token - @return a new JSON pointer with unescaped @a token appended to @a ptr - - @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary} - - @complexity Linear in the length of @a ptr. - - @sa see @ref operator/=(std::string) to append a reference token - - @since version 3.6.0 - */ - friend json_pointer operator/(const json_pointer& ptr, std::string token) // NOLINT(performance-unnecessary-value-param) - { - return json_pointer(ptr) /= std::move(token); - } - - /*! - @brief create a new JSON pointer by appending the array-index-token at the end of the JSON pointer - - @param[in] ptr JSON pointer - @param[in] array_idx array index - @return a new JSON pointer with @a array_idx appended to @a ptr - - @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary} - - @complexity Linear in the length of @a ptr. - - @sa see @ref operator/=(std::size_t) to append an array index - - @since version 3.6.0 - */ - friend json_pointer operator/(const json_pointer& ptr, std::size_t array_idx) - { - return json_pointer(ptr) /= array_idx; - } - - /*! - @brief returns the parent of this JSON pointer - - @return parent of this JSON pointer; in case this JSON pointer is the root, - the root itself is returned - - @complexity Linear in the length of the JSON pointer. - - @liveexample{The example shows the result of `parent_pointer` for different - JSON Pointers.,json_pointer__parent_pointer} - - @since version 3.6.0 - */ - json_pointer parent_pointer() const - { - if (empty()) - { - return *this; - } - - json_pointer res = *this; - res.pop_back(); - return res; - } - - /*! - @brief remove last reference token - - @pre not `empty()` - - @liveexample{The example shows the usage of `pop_back`.,json_pointer__pop_back} - - @complexity Constant. - - @throw out_of_range.405 if JSON pointer has no parent - - @since version 3.6.0 - */ - void pop_back() - { - if (JSON_HEDLEY_UNLIKELY(empty())) - { - JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); - } - - reference_tokens.pop_back(); - } - - /*! - @brief return last reference token - - @pre not `empty()` - @return last reference token - - @liveexample{The example shows the usage of `back`.,json_pointer__back} - - @complexity Constant. - - @throw out_of_range.405 if JSON pointer has no parent - - @since version 3.6.0 - */ - const std::string& back() const - { - if (JSON_HEDLEY_UNLIKELY(empty())) - { - JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); - } - - return reference_tokens.back(); - } - - /*! - @brief append an unescaped token at the end of the reference pointer - - @param[in] token token to add - - @complexity Amortized constant. - - @liveexample{The example shows the result of `push_back` for different - JSON Pointers.,json_pointer__push_back} - - @since version 3.6.0 - */ - void push_back(const std::string& token) - { - reference_tokens.push_back(token); - } - - /// @copydoc push_back(const std::string&) - void push_back(std::string&& token) - { - reference_tokens.push_back(std::move(token)); - } - - /*! - @brief return whether pointer points to the root document - - @return true iff the JSON pointer points to the root document - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @liveexample{The example shows the result of `empty` for different JSON - Pointers.,json_pointer__empty} - - @since version 3.6.0 - */ - bool empty() const noexcept - { - return reference_tokens.empty(); - } - - private: - /*! - @param[in] s reference token to be converted into an array index - - @return integer representation of @a s - - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index begins not with a digit - @throw out_of_range.404 if string @a s could not be converted to an integer - @throw out_of_range.410 if an array index exceeds size_type - */ - static typename BasicJsonType::size_type array_index(const std::string& s) - { - using size_type = typename BasicJsonType::size_type; - - // error condition (cf. RFC 6901, Sect. 4) - if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && s[0] == '0')) - { - JSON_THROW(detail::parse_error::create(106, 0, "array index '" + s + "' must not begin with '0'", BasicJsonType())); - } - - // error condition (cf. RFC 6901, Sect. 4) - if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && !(s[0] >= '1' && s[0] <= '9'))) - { - JSON_THROW(detail::parse_error::create(109, 0, "array index '" + s + "' is not a number", BasicJsonType())); - } - - std::size_t processed_chars = 0; - unsigned long long res = 0; // NOLINT(runtime/int) - JSON_TRY - { - res = std::stoull(s, &processed_chars); - } - JSON_CATCH(std::out_of_range&) - { - JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType())); - } - - // check if the string was completely read - if (JSON_HEDLEY_UNLIKELY(processed_chars != s.size())) - { - JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType())); - } - - // only triggered on special platforms (like 32bit), see also - // https://github.com/nlohmann/json/pull/2203 - if (res >= static_cast((std::numeric_limits::max)())) // NOLINT(runtime/int) - { - JSON_THROW(detail::out_of_range::create(410, "array index " + s + " exceeds size_type", BasicJsonType())); // LCOV_EXCL_LINE - } - - return static_cast(res); - } - - JSON_PRIVATE_UNLESS_TESTED: - json_pointer top() const - { - if (JSON_HEDLEY_UNLIKELY(empty())) - { - JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); - } - - json_pointer result = *this; - result.reference_tokens = {reference_tokens[0]}; - return result; - } - - private: - /*! - @brief create and return a reference to the pointed to value - - @complexity Linear in the number of reference tokens. - - @throw parse_error.109 if array index is not a number - @throw type_error.313 if value cannot be unflattened - */ - BasicJsonType& get_and_create(BasicJsonType& j) const - { - auto* result = &j; - - // in case no reference tokens exist, return a reference to the JSON value - // j which will be overwritten by a primitive value - for (const auto& reference_token : reference_tokens) - { - switch (result->type()) - { - case detail::value_t::null: - { - if (reference_token == "0") - { - // start a new array if reference token is 0 - result = &result->operator[](0); - } - else - { - // start a new object otherwise - result = &result->operator[](reference_token); - } - break; - } - - case detail::value_t::object: - { - // create an entry in the object - result = &result->operator[](reference_token); - break; - } - - case detail::value_t::array: - { - // create an entry in the array - result = &result->operator[](array_index(reference_token)); - break; - } - - /* - The following code is only reached if there exists a reference - token _and_ the current value is primitive. In this case, we have - an error situation, because primitive values may only occur as - single value; that is, with an empty list of reference tokens. - */ - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - JSON_THROW(detail::type_error::create(313, "invalid value to unflatten", j)); - } - } - - return *result; - } - - /*! - @brief return a reference to the pointed to value - - @note This version does not throw if a value is not present, but tries to - create nested values instead. For instance, calling this function - with pointer `"/this/that"` on a null value is equivalent to calling - `operator[]("this").operator[]("that")` on that value, effectively - changing the null value to an object. - - @param[in] ptr a JSON value - - @return reference to the JSON value pointed to by the JSON pointer - - @complexity Linear in the length of the JSON pointer. - - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - @throw out_of_range.404 if the JSON pointer can not be resolved - */ - BasicJsonType& get_unchecked(BasicJsonType* ptr) const - { - for (const auto& reference_token : reference_tokens) - { - // convert null values to arrays or objects before continuing - if (ptr->is_null()) - { - // check if reference token is a number - const bool nums = - std::all_of(reference_token.begin(), reference_token.end(), - [](const unsigned char x) - { - return std::isdigit(x); - }); - - // change value to array for numbers or "-" or to object otherwise - *ptr = (nums || reference_token == "-") - ? detail::value_t::array - : detail::value_t::object; - } - - switch (ptr->type()) - { - case detail::value_t::object: - { - // use unchecked object access - ptr = &ptr->operator[](reference_token); - break; - } - - case detail::value_t::array: - { - if (reference_token == "-") - { - // explicitly treat "-" as index beyond the end - ptr = &ptr->operator[](ptr->m_value.array->size()); - } - else - { - // convert array index to number; unchecked access - ptr = &ptr->operator[](array_index(reference_token)); - } - break; - } - - case detail::value_t::null: - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); - } - } - - return *ptr; - } - - /*! - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - @throw out_of_range.402 if the array index '-' is used - @throw out_of_range.404 if the JSON pointer can not be resolved - */ - BasicJsonType& get_checked(BasicJsonType* ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->type()) - { - case detail::value_t::object: - { - // note: at performs range check - ptr = &ptr->at(reference_token); - break; - } - - case detail::value_t::array: - { - if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) - { - // "-" always fails the range check - JSON_THROW(detail::out_of_range::create(402, - "array index '-' (" + std::to_string(ptr->m_value.array->size()) + - ") is out of range", *ptr)); - } - - // note: at performs range check - ptr = &ptr->at(array_index(reference_token)); - break; - } - - case detail::value_t::null: - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); - } - } - - return *ptr; - } - - /*! - @brief return a const reference to the pointed to value - - @param[in] ptr a JSON value - - @return const reference to the JSON value pointed to by the JSON - pointer - - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - @throw out_of_range.402 if the array index '-' is used - @throw out_of_range.404 if the JSON pointer can not be resolved - */ - const BasicJsonType& get_unchecked(const BasicJsonType* ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->type()) - { - case detail::value_t::object: - { - // use unchecked object access - ptr = &ptr->operator[](reference_token); - break; - } - - case detail::value_t::array: - { - if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) - { - // "-" cannot be used for const access - JSON_THROW(detail::out_of_range::create(402, "array index '-' (" + std::to_string(ptr->m_value.array->size()) + ") is out of range", *ptr)); - } - - // use unchecked array access - ptr = &ptr->operator[](array_index(reference_token)); - break; - } - - case detail::value_t::null: - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); - } - } - - return *ptr; - } - - /*! - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - @throw out_of_range.402 if the array index '-' is used - @throw out_of_range.404 if the JSON pointer can not be resolved - */ - const BasicJsonType& get_checked(const BasicJsonType* ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->type()) - { - case detail::value_t::object: - { - // note: at performs range check - ptr = &ptr->at(reference_token); - break; - } - - case detail::value_t::array: - { - if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) - { - // "-" always fails the range check - JSON_THROW(detail::out_of_range::create(402, - "array index '-' (" + std::to_string(ptr->m_value.array->size()) + - ") is out of range", *ptr)); - } - - // note: at performs range check - ptr = &ptr->at(array_index(reference_token)); - break; - } - - case detail::value_t::null: - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); - } - } - - return *ptr; - } - - /*! - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - */ - bool contains(const BasicJsonType* ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->type()) - { - case detail::value_t::object: - { - if (!ptr->contains(reference_token)) - { - // we did not find the key in the object - return false; - } - - ptr = &ptr->operator[](reference_token); - break; - } - - case detail::value_t::array: - { - if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) - { - // "-" always fails the range check - return false; - } - if (JSON_HEDLEY_UNLIKELY(reference_token.size() == 1 && !("0" <= reference_token && reference_token <= "9"))) - { - // invalid char - return false; - } - if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1)) - { - if (JSON_HEDLEY_UNLIKELY(!('1' <= reference_token[0] && reference_token[0] <= '9'))) - { - // first char should be between '1' and '9' - return false; - } - for (std::size_t i = 1; i < reference_token.size(); i++) - { - if (JSON_HEDLEY_UNLIKELY(!('0' <= reference_token[i] && reference_token[i] <= '9'))) - { - // other char should be between '0' and '9' - return false; - } - } - } - - const auto idx = array_index(reference_token); - if (idx >= ptr->size()) - { - // index out of range - return false; - } - - ptr = &ptr->operator[](idx); - break; - } - - case detail::value_t::null: - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - { - // we do not expect primitive values if there is still a - // reference token to process - return false; - } - } - } - - // no reference token left means we found a primitive value - return true; - } - - /*! - @brief split the string input to reference tokens - - @note This function is only called by the json_pointer constructor. - All exceptions below are documented there. - - @throw parse_error.107 if the pointer is not empty or begins with '/' - @throw parse_error.108 if character '~' is not followed by '0' or '1' - */ - static std::vector split(const std::string& reference_string) - { - std::vector result; - - // special case: empty reference string -> no reference tokens - if (reference_string.empty()) - { - return result; - } - - // check if nonempty reference string begins with slash - if (JSON_HEDLEY_UNLIKELY(reference_string[0] != '/')) - { - JSON_THROW(detail::parse_error::create(107, 1, "JSON pointer must be empty or begin with '/' - was: '" + reference_string + "'", BasicJsonType())); - } - - // extract the reference tokens: - // - slash: position of the last read slash (or end of string) - // - start: position after the previous slash - for ( - // search for the first slash after the first character - std::size_t slash = reference_string.find_first_of('/', 1), - // set the beginning of the first reference token - start = 1; - // we can stop if start == 0 (if slash == std::string::npos) - start != 0; - // set the beginning of the next reference token - // (will eventually be 0 if slash == std::string::npos) - start = (slash == std::string::npos) ? 0 : slash + 1, - // find next slash - slash = reference_string.find_first_of('/', start)) - { - // use the text between the beginning of the reference token - // (start) and the last slash (slash). - auto reference_token = reference_string.substr(start, slash - start); - - // check reference tokens are properly escaped - for (std::size_t pos = reference_token.find_first_of('~'); - pos != std::string::npos; - pos = reference_token.find_first_of('~', pos + 1)) - { - JSON_ASSERT(reference_token[pos] == '~'); - - // ~ must be followed by 0 or 1 - if (JSON_HEDLEY_UNLIKELY(pos == reference_token.size() - 1 || - (reference_token[pos + 1] != '0' && - reference_token[pos + 1] != '1'))) - { - JSON_THROW(detail::parse_error::create(108, 0, "escape character '~' must be followed with '0' or '1'", BasicJsonType())); - } - } - - // finally, store the reference token - detail::unescape(reference_token); - result.push_back(reference_token); - } - - return result; - } - - private: - /*! - @param[in] reference_string the reference string to the current value - @param[in] value the value to consider - @param[in,out] result the result object to insert values to - - @note Empty objects or arrays are flattened to `null`. - */ - static void flatten(const std::string& reference_string, - const BasicJsonType& value, - BasicJsonType& result) - { - switch (value.type()) - { - case detail::value_t::array: - { - if (value.m_value.array->empty()) - { - // flatten empty array as null - result[reference_string] = nullptr; - } - else - { - // iterate array and use index as reference string - for (std::size_t i = 0; i < value.m_value.array->size(); ++i) - { - flatten(reference_string + "/" + std::to_string(i), - value.m_value.array->operator[](i), result); - } - } - break; - } - - case detail::value_t::object: - { - if (value.m_value.object->empty()) - { - // flatten empty object as null - result[reference_string] = nullptr; - } - else - { - // iterate object and use keys as reference string - for (const auto& element : *value.m_value.object) - { - flatten(reference_string + "/" + detail::escape(element.first), element.second, result); - } - } - break; - } - - case detail::value_t::null: - case detail::value_t::string: - case detail::value_t::boolean: - case detail::value_t::number_integer: - case detail::value_t::number_unsigned: - case detail::value_t::number_float: - case detail::value_t::binary: - case detail::value_t::discarded: - default: - { - // add primitive value with its reference string - result[reference_string] = value; - break; - } - } - } - - /*! - @param[in] value flattened JSON - - @return unflattened JSON - - @throw parse_error.109 if array index is not a number - @throw type_error.314 if value is not an object - @throw type_error.315 if object values are not primitive - @throw type_error.313 if value cannot be unflattened - */ - static BasicJsonType - unflatten(const BasicJsonType& value) - { - if (JSON_HEDLEY_UNLIKELY(!value.is_object())) - { - JSON_THROW(detail::type_error::create(314, "only objects can be unflattened", value)); - } - - BasicJsonType result; - - // iterate the JSON object values - for (const auto& element : *value.m_value.object) - { - if (JSON_HEDLEY_UNLIKELY(!element.second.is_primitive())) - { - JSON_THROW(detail::type_error::create(315, "values in object must be primitive", element.second)); - } - - // assign value to reference pointed to by JSON pointer; Note that if - // the JSON pointer is "" (i.e., points to the whole value), function - // get_and_create returns a reference to result itself. An assignment - // will then create a primitive value. - json_pointer(element.first).get_and_create(result) = element.second; - } - - return result; - } - - /*! - @brief compares two JSON pointers for equality - - @param[in] lhs JSON pointer to compare - @param[in] rhs JSON pointer to compare - @return whether @a lhs is equal to @a rhs - - @complexity Linear in the length of the JSON pointer - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - */ - friend bool operator==(json_pointer const& lhs, - json_pointer const& rhs) noexcept - { - return lhs.reference_tokens == rhs.reference_tokens; - } - - /*! - @brief compares two JSON pointers for inequality - - @param[in] lhs JSON pointer to compare - @param[in] rhs JSON pointer to compare - @return whether @a lhs is not equal @a rhs - - @complexity Linear in the length of the JSON pointer - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - */ - friend bool operator!=(json_pointer const& lhs, - json_pointer const& rhs) noexcept - { - return !(lhs == rhs); - } - - /// the reference tokens - std::vector reference_tokens; -}; -} // namespace nlohmann - -// #include - - -#include -#include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -template -class json_ref -{ - public: - using value_type = BasicJsonType; - - json_ref(value_type&& value) - : owned_value(std::move(value)) - {} - - json_ref(const value_type& value) - : value_ref(&value) - {} - - json_ref(std::initializer_list init) - : owned_value(init) - {} - - template < - class... Args, - enable_if_t::value, int> = 0 > - json_ref(Args && ... args) - : owned_value(std::forward(args)...) - {} - - // class should be movable only - json_ref(json_ref&&) noexcept = default; - json_ref(const json_ref&) = delete; - json_ref& operator=(const json_ref&) = delete; - json_ref& operator=(json_ref&&) = delete; - ~json_ref() = default; - - value_type moved_or_copied() const - { - if (value_ref == nullptr) - { - return std::move(owned_value); - } - return *value_ref; - } - - value_type const& operator*() const - { - return value_ref ? *value_ref : owned_value; - } - - value_type const* operator->() const - { - return &** this; - } - - private: - mutable value_type owned_value = nullptr; - value_type const* value_ref = nullptr; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - -// #include - -// #include - -// #include - - -#include // reverse -#include // array -#include // isnan, isinf -#include // uint8_t, uint16_t, uint32_t, uint64_t -#include // memcpy -#include // numeric_limits -#include // string -#include // move - -// #include - -// #include - -// #include - - -#include // copy -#include // size_t -#include // back_inserter -#include // shared_ptr, make_shared -#include // basic_string -#include // vector - -#ifndef JSON_NO_IO - #include // streamsize - #include // basic_ostream -#endif // JSON_NO_IO - -// #include - - -namespace nlohmann -{ -namespace detail -{ -/// abstract output adapter interface -template struct output_adapter_protocol -{ - virtual void write_character(CharType c) = 0; - virtual void write_characters(const CharType* s, std::size_t length) = 0; - virtual ~output_adapter_protocol() = default; - - output_adapter_protocol() = default; - output_adapter_protocol(const output_adapter_protocol&) = default; - output_adapter_protocol(output_adapter_protocol&&) noexcept = default; - output_adapter_protocol& operator=(const output_adapter_protocol&) = default; - output_adapter_protocol& operator=(output_adapter_protocol&&) noexcept = default; -}; - -/// a type to simplify interfaces -template -using output_adapter_t = std::shared_ptr>; - -/// output adapter for byte vectors -template -class output_vector_adapter : public output_adapter_protocol -{ - public: - explicit output_vector_adapter(std::vector& vec) noexcept - : v(vec) - {} - - void write_character(CharType c) override - { - v.push_back(c); - } - - JSON_HEDLEY_NON_NULL(2) - void write_characters(const CharType* s, std::size_t length) override - { - std::copy(s, s + length, std::back_inserter(v)); - } - - private: - std::vector& v; -}; - -#ifndef JSON_NO_IO -/// output adapter for output streams -template -class output_stream_adapter : public output_adapter_protocol -{ - public: - explicit output_stream_adapter(std::basic_ostream& s) noexcept - : stream(s) - {} - - void write_character(CharType c) override - { - stream.put(c); - } - - JSON_HEDLEY_NON_NULL(2) - void write_characters(const CharType* s, std::size_t length) override - { - stream.write(s, static_cast(length)); - } - - private: - std::basic_ostream& stream; -}; -#endif // JSON_NO_IO - -/// output adapter for basic_string -template> -class output_string_adapter : public output_adapter_protocol -{ - public: - explicit output_string_adapter(StringType& s) noexcept - : str(s) - {} - - void write_character(CharType c) override - { - str.push_back(c); - } - - JSON_HEDLEY_NON_NULL(2) - void write_characters(const CharType* s, std::size_t length) override - { - str.append(s, length); - } - - private: - StringType& str; -}; - -template> -class output_adapter -{ - public: - output_adapter(std::vector& vec) - : oa(std::make_shared>(vec)) {} - -#ifndef JSON_NO_IO - output_adapter(std::basic_ostream& s) - : oa(std::make_shared>(s)) {} -#endif // JSON_NO_IO - - output_adapter(StringType& s) - : oa(std::make_shared>(s)) {} - - operator output_adapter_t() - { - return oa; - } - - private: - output_adapter_t oa = nullptr; -}; -} // namespace detail -} // namespace nlohmann - - -namespace nlohmann -{ -namespace detail -{ -/////////////////// -// binary writer // -/////////////////// - -/*! -@brief serialization to CBOR and MessagePack values -*/ -template -class binary_writer -{ - using string_t = typename BasicJsonType::string_t; - using binary_t = typename BasicJsonType::binary_t; - using number_float_t = typename BasicJsonType::number_float_t; - - public: - /*! - @brief create a binary writer - - @param[in] adapter output adapter to write to - */ - explicit binary_writer(output_adapter_t adapter) : oa(std::move(adapter)) - { - JSON_ASSERT(oa); - } - - /*! - @param[in] j JSON value to serialize - @pre j.type() == value_t::object - */ - void write_bson(const BasicJsonType& j) - { - switch (j.type()) - { - case value_t::object: - { - write_bson_object(*j.m_value.object); - break; - } - - case value_t::null: - case value_t::array: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name()), j));; - } - } - } - - /*! - @param[in] j JSON value to serialize - */ - void write_cbor(const BasicJsonType& j) - { - switch (j.type()) - { - case value_t::null: - { - oa->write_character(to_char_type(0xF6)); - break; - } - - case value_t::boolean: - { - oa->write_character(j.m_value.boolean - ? to_char_type(0xF5) - : to_char_type(0xF4)); - break; - } - - case value_t::number_integer: - { - if (j.m_value.number_integer >= 0) - { - // CBOR does not differentiate between positive signed - // integers and unsigned integers. Therefore, we used the - // code from the value_t::number_unsigned case here. - if (j.m_value.number_integer <= 0x17) - { - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x18)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x19)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x1A)); - write_number(static_cast(j.m_value.number_integer)); - } - else - { - oa->write_character(to_char_type(0x1B)); - write_number(static_cast(j.m_value.number_integer)); - } - } - else - { - // The conversions below encode the sign in the first - // byte, and the value is converted to a positive number. - const auto positive_number = -1 - j.m_value.number_integer; - if (j.m_value.number_integer >= -24) - { - write_number(static_cast(0x20 + positive_number)); - } - else if (positive_number <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x38)); - write_number(static_cast(positive_number)); - } - else if (positive_number <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x39)); - write_number(static_cast(positive_number)); - } - else if (positive_number <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x3A)); - write_number(static_cast(positive_number)); - } - else - { - oa->write_character(to_char_type(0x3B)); - write_number(static_cast(positive_number)); - } - } - break; - } - - case value_t::number_unsigned: - { - if (j.m_value.number_unsigned <= 0x17) - { - write_number(static_cast(j.m_value.number_unsigned)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x18)); - write_number(static_cast(j.m_value.number_unsigned)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x19)); - write_number(static_cast(j.m_value.number_unsigned)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x1A)); - write_number(static_cast(j.m_value.number_unsigned)); - } - else - { - oa->write_character(to_char_type(0x1B)); - write_number(static_cast(j.m_value.number_unsigned)); - } - break; - } - - case value_t::number_float: - { - if (std::isnan(j.m_value.number_float)) - { - // NaN is 0xf97e00 in CBOR - oa->write_character(to_char_type(0xF9)); - oa->write_character(to_char_type(0x7E)); - oa->write_character(to_char_type(0x00)); - } - else if (std::isinf(j.m_value.number_float)) - { - // Infinity is 0xf97c00, -Infinity is 0xf9fc00 - oa->write_character(to_char_type(0xf9)); - oa->write_character(j.m_value.number_float > 0 ? to_char_type(0x7C) : to_char_type(0xFC)); - oa->write_character(to_char_type(0x00)); - } - else - { - write_compact_float(j.m_value.number_float, detail::input_format_t::cbor); - } - break; - } - - case value_t::string: - { - // step 1: write control byte and the string length - const auto N = j.m_value.string->size(); - if (N <= 0x17) - { - write_number(static_cast(0x60 + N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x78)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x79)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x7A)); - write_number(static_cast(N)); - } - // LCOV_EXCL_START - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x7B)); - write_number(static_cast(N)); - } - // LCOV_EXCL_STOP - - // step 2: write the string - oa->write_characters( - reinterpret_cast(j.m_value.string->c_str()), - j.m_value.string->size()); - break; - } - - case value_t::array: - { - // step 1: write control byte and the array size - const auto N = j.m_value.array->size(); - if (N <= 0x17) - { - write_number(static_cast(0x80 + N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x98)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x99)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x9A)); - write_number(static_cast(N)); - } - // LCOV_EXCL_START - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x9B)); - write_number(static_cast(N)); - } - // LCOV_EXCL_STOP - - // step 2: write each element - for (const auto& el : *j.m_value.array) - { - write_cbor(el); - } - break; - } - - case value_t::binary: - { - if (j.m_value.binary->has_subtype()) - { - if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) - { - write_number(static_cast(0xd8)); - write_number(static_cast(j.m_value.binary->subtype())); - } - else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) - { - write_number(static_cast(0xd9)); - write_number(static_cast(j.m_value.binary->subtype())); - } - else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) - { - write_number(static_cast(0xda)); - write_number(static_cast(j.m_value.binary->subtype())); - } - else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) - { - write_number(static_cast(0xdb)); - write_number(static_cast(j.m_value.binary->subtype())); - } - } - - // step 1: write control byte and the binary array size - const auto N = j.m_value.binary->size(); - if (N <= 0x17) - { - write_number(static_cast(0x40 + N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x58)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x59)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x5A)); - write_number(static_cast(N)); - } - // LCOV_EXCL_START - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0x5B)); - write_number(static_cast(N)); - } - // LCOV_EXCL_STOP - - // step 2: write each element - oa->write_characters( - reinterpret_cast(j.m_value.binary->data()), - N); - - break; - } - - case value_t::object: - { - // step 1: write control byte and the object size - const auto N = j.m_value.object->size(); - if (N <= 0x17) - { - write_number(static_cast(0xA0 + N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0xB8)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0xB9)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0xBA)); - write_number(static_cast(N)); - } - // LCOV_EXCL_START - else if (N <= (std::numeric_limits::max)()) - { - oa->write_character(to_char_type(0xBB)); - write_number(static_cast(N)); - } - // LCOV_EXCL_STOP - - // step 2: write each element - for (const auto& el : *j.m_value.object) - { - write_cbor(el.first); - write_cbor(el.second); - } - break; - } - - case value_t::discarded: - default: - break; - } - } - - /*! - @param[in] j JSON value to serialize - */ - void write_msgpack(const BasicJsonType& j) - { - switch (j.type()) - { - case value_t::null: // nil - { - oa->write_character(to_char_type(0xC0)); - break; - } - - case value_t::boolean: // true and false - { - oa->write_character(j.m_value.boolean - ? to_char_type(0xC3) - : to_char_type(0xC2)); - break; - } - - case value_t::number_integer: - { - if (j.m_value.number_integer >= 0) - { - // MessagePack does not differentiate between positive - // signed integers and unsigned integers. Therefore, we used - // the code from the value_t::number_unsigned case here. - if (j.m_value.number_unsigned < 128) - { - // positive fixnum - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 8 - oa->write_character(to_char_type(0xCC)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 16 - oa->write_character(to_char_type(0xCD)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 32 - oa->write_character(to_char_type(0xCE)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 64 - oa->write_character(to_char_type(0xCF)); - write_number(static_cast(j.m_value.number_integer)); - } - } - else - { - if (j.m_value.number_integer >= -32) - { - // negative fixnum - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer >= (std::numeric_limits::min)() && - j.m_value.number_integer <= (std::numeric_limits::max)()) - { - // int 8 - oa->write_character(to_char_type(0xD0)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer >= (std::numeric_limits::min)() && - j.m_value.number_integer <= (std::numeric_limits::max)()) - { - // int 16 - oa->write_character(to_char_type(0xD1)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer >= (std::numeric_limits::min)() && - j.m_value.number_integer <= (std::numeric_limits::max)()) - { - // int 32 - oa->write_character(to_char_type(0xD2)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_integer >= (std::numeric_limits::min)() && - j.m_value.number_integer <= (std::numeric_limits::max)()) - { - // int 64 - oa->write_character(to_char_type(0xD3)); - write_number(static_cast(j.m_value.number_integer)); - } - } - break; - } - - case value_t::number_unsigned: - { - if (j.m_value.number_unsigned < 128) - { - // positive fixnum - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 8 - oa->write_character(to_char_type(0xCC)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 16 - oa->write_character(to_char_type(0xCD)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 32 - oa->write_character(to_char_type(0xCE)); - write_number(static_cast(j.m_value.number_integer)); - } - else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) - { - // uint 64 - oa->write_character(to_char_type(0xCF)); - write_number(static_cast(j.m_value.number_integer)); - } - break; - } - - case value_t::number_float: - { - write_compact_float(j.m_value.number_float, detail::input_format_t::msgpack); - break; - } - - case value_t::string: - { - // step 1: write control byte and the string length - const auto N = j.m_value.string->size(); - if (N <= 31) - { - // fixstr - write_number(static_cast(0xA0 | N)); - } - else if (N <= (std::numeric_limits::max)()) - { - // str 8 - oa->write_character(to_char_type(0xD9)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - // str 16 - oa->write_character(to_char_type(0xDA)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - // str 32 - oa->write_character(to_char_type(0xDB)); - write_number(static_cast(N)); - } - - // step 2: write the string - oa->write_characters( - reinterpret_cast(j.m_value.string->c_str()), - j.m_value.string->size()); - break; - } - - case value_t::array: - { - // step 1: write control byte and the array size - const auto N = j.m_value.array->size(); - if (N <= 15) - { - // fixarray - write_number(static_cast(0x90 | N)); - } - else if (N <= (std::numeric_limits::max)()) - { - // array 16 - oa->write_character(to_char_type(0xDC)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - // array 32 - oa->write_character(to_char_type(0xDD)); - write_number(static_cast(N)); - } - - // step 2: write each element - for (const auto& el : *j.m_value.array) - { - write_msgpack(el); - } - break; - } - - case value_t::binary: - { - // step 0: determine if the binary type has a set subtype to - // determine whether or not to use the ext or fixext types - const bool use_ext = j.m_value.binary->has_subtype(); - - // step 1: write control byte and the byte string length - const auto N = j.m_value.binary->size(); - if (N <= (std::numeric_limits::max)()) - { - std::uint8_t output_type{}; - bool fixed = true; - if (use_ext) - { - switch (N) - { - case 1: - output_type = 0xD4; // fixext 1 - break; - case 2: - output_type = 0xD5; // fixext 2 - break; - case 4: - output_type = 0xD6; // fixext 4 - break; - case 8: - output_type = 0xD7; // fixext 8 - break; - case 16: - output_type = 0xD8; // fixext 16 - break; - default: - output_type = 0xC7; // ext 8 - fixed = false; - break; - } - - } - else - { - output_type = 0xC4; // bin 8 - fixed = false; - } - - oa->write_character(to_char_type(output_type)); - if (!fixed) - { - write_number(static_cast(N)); - } - } - else if (N <= (std::numeric_limits::max)()) - { - std::uint8_t output_type = use_ext - ? 0xC8 // ext 16 - : 0xC5; // bin 16 - - oa->write_character(to_char_type(output_type)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - std::uint8_t output_type = use_ext - ? 0xC9 // ext 32 - : 0xC6; // bin 32 - - oa->write_character(to_char_type(output_type)); - write_number(static_cast(N)); - } - - // step 1.5: if this is an ext type, write the subtype - if (use_ext) - { - write_number(static_cast(j.m_value.binary->subtype())); - } - - // step 2: write the byte string - oa->write_characters( - reinterpret_cast(j.m_value.binary->data()), - N); - - break; - } - - case value_t::object: - { - // step 1: write control byte and the object size - const auto N = j.m_value.object->size(); - if (N <= 15) - { - // fixmap - write_number(static_cast(0x80 | (N & 0xF))); - } - else if (N <= (std::numeric_limits::max)()) - { - // map 16 - oa->write_character(to_char_type(0xDE)); - write_number(static_cast(N)); - } - else if (N <= (std::numeric_limits::max)()) - { - // map 32 - oa->write_character(to_char_type(0xDF)); - write_number(static_cast(N)); - } - - // step 2: write each element - for (const auto& el : *j.m_value.object) - { - write_msgpack(el.first); - write_msgpack(el.second); - } - break; - } - - case value_t::discarded: - default: - break; - } - } - - /*! - @param[in] j JSON value to serialize - @param[in] use_count whether to use '#' prefixes (optimized format) - @param[in] use_type whether to use '$' prefixes (optimized format) - @param[in] add_prefix whether prefixes need to be used for this value - */ - void write_ubjson(const BasicJsonType& j, const bool use_count, - const bool use_type, const bool add_prefix = true) - { - switch (j.type()) - { - case value_t::null: - { - if (add_prefix) - { - oa->write_character(to_char_type('Z')); - } - break; - } - - case value_t::boolean: - { - if (add_prefix) - { - oa->write_character(j.m_value.boolean - ? to_char_type('T') - : to_char_type('F')); - } - break; - } - - case value_t::number_integer: - { - write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix); - break; - } - - case value_t::number_unsigned: - { - write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix); - break; - } - - case value_t::number_float: - { - write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix); - break; - } - - case value_t::string: - { - if (add_prefix) - { - oa->write_character(to_char_type('S')); - } - write_number_with_ubjson_prefix(j.m_value.string->size(), true); - oa->write_characters( - reinterpret_cast(j.m_value.string->c_str()), - j.m_value.string->size()); - break; - } - - case value_t::array: - { - if (add_prefix) - { - oa->write_character(to_char_type('[')); - } - - bool prefix_required = true; - if (use_type && !j.m_value.array->empty()) - { - JSON_ASSERT(use_count); - const CharType first_prefix = ubjson_prefix(j.front()); - const bool same_prefix = std::all_of(j.begin() + 1, j.end(), - [this, first_prefix](const BasicJsonType & v) - { - return ubjson_prefix(v) == first_prefix; - }); - - if (same_prefix) - { - prefix_required = false; - oa->write_character(to_char_type('$')); - oa->write_character(first_prefix); - } - } - - if (use_count) - { - oa->write_character(to_char_type('#')); - write_number_with_ubjson_prefix(j.m_value.array->size(), true); - } - - for (const auto& el : *j.m_value.array) - { - write_ubjson(el, use_count, use_type, prefix_required); - } - - if (!use_count) - { - oa->write_character(to_char_type(']')); - } - - break; - } - - case value_t::binary: - { - if (add_prefix) - { - oa->write_character(to_char_type('[')); - } - - if (use_type && !j.m_value.binary->empty()) - { - JSON_ASSERT(use_count); - oa->write_character(to_char_type('$')); - oa->write_character('U'); - } - - if (use_count) - { - oa->write_character(to_char_type('#')); - write_number_with_ubjson_prefix(j.m_value.binary->size(), true); - } - - if (use_type) - { - oa->write_characters( - reinterpret_cast(j.m_value.binary->data()), - j.m_value.binary->size()); - } - else - { - for (size_t i = 0; i < j.m_value.binary->size(); ++i) - { - oa->write_character(to_char_type('U')); - oa->write_character(j.m_value.binary->data()[i]); - } - } - - if (!use_count) - { - oa->write_character(to_char_type(']')); - } - - break; - } - - case value_t::object: - { - if (add_prefix) - { - oa->write_character(to_char_type('{')); - } - - bool prefix_required = true; - if (use_type && !j.m_value.object->empty()) - { - JSON_ASSERT(use_count); - const CharType first_prefix = ubjson_prefix(j.front()); - const bool same_prefix = std::all_of(j.begin(), j.end(), - [this, first_prefix](const BasicJsonType & v) - { - return ubjson_prefix(v) == first_prefix; - }); - - if (same_prefix) - { - prefix_required = false; - oa->write_character(to_char_type('$')); - oa->write_character(first_prefix); - } - } - - if (use_count) - { - oa->write_character(to_char_type('#')); - write_number_with_ubjson_prefix(j.m_value.object->size(), true); - } - - for (const auto& el : *j.m_value.object) - { - write_number_with_ubjson_prefix(el.first.size(), true); - oa->write_characters( - reinterpret_cast(el.first.c_str()), - el.first.size()); - write_ubjson(el.second, use_count, use_type, prefix_required); - } - - if (!use_count) - { - oa->write_character(to_char_type('}')); - } - - break; - } - - case value_t::discarded: - default: - break; - } - } - - private: - ////////// - // BSON // - ////////// - - /*! - @return The size of a BSON document entry header, including the id marker - and the entry name size (and its null-terminator). - */ - static std::size_t calc_bson_entry_header_size(const string_t& name, const BasicJsonType& j) - { - const auto it = name.find(static_cast(0)); - if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos)) - { - JSON_THROW(out_of_range::create(409, "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")", j)); - static_cast(j); - } - - return /*id*/ 1ul + name.size() + /*zero-terminator*/1u; - } - - /*! - @brief Writes the given @a element_type and @a name to the output adapter - */ - void write_bson_entry_header(const string_t& name, - const std::uint8_t element_type) - { - oa->write_character(to_char_type(element_type)); // boolean - oa->write_characters( - reinterpret_cast(name.c_str()), - name.size() + 1u); - } - - /*! - @brief Writes a BSON element with key @a name and boolean value @a value - */ - void write_bson_boolean(const string_t& name, - const bool value) - { - write_bson_entry_header(name, 0x08); - oa->write_character(value ? to_char_type(0x01) : to_char_type(0x00)); - } - - /*! - @brief Writes a BSON element with key @a name and double value @a value - */ - void write_bson_double(const string_t& name, - const double value) - { - write_bson_entry_header(name, 0x01); - write_number(value); - } - - /*! - @return The size of the BSON-encoded string in @a value - */ - static std::size_t calc_bson_string_size(const string_t& value) - { - return sizeof(std::int32_t) + value.size() + 1ul; - } - - /*! - @brief Writes a BSON element with key @a name and string value @a value - */ - void write_bson_string(const string_t& name, - const string_t& value) - { - write_bson_entry_header(name, 0x02); - - write_number(static_cast(value.size() + 1ul)); - oa->write_characters( - reinterpret_cast(value.c_str()), - value.size() + 1); - } - - /*! - @brief Writes a BSON element with key @a name and null value - */ - void write_bson_null(const string_t& name) - { - write_bson_entry_header(name, 0x0A); - } - - /*! - @return The size of the BSON-encoded integer @a value - */ - static std::size_t calc_bson_integer_size(const std::int64_t value) - { - return (std::numeric_limits::min)() <= value && value <= (std::numeric_limits::max)() - ? sizeof(std::int32_t) - : sizeof(std::int64_t); - } - - /*! - @brief Writes a BSON element with key @a name and integer @a value - */ - void write_bson_integer(const string_t& name, - const std::int64_t value) - { - if ((std::numeric_limits::min)() <= value && value <= (std::numeric_limits::max)()) - { - write_bson_entry_header(name, 0x10); // int32 - write_number(static_cast(value)); - } - else - { - write_bson_entry_header(name, 0x12); // int64 - write_number(static_cast(value)); - } - } - - /*! - @return The size of the BSON-encoded unsigned integer in @a j - */ - static constexpr std::size_t calc_bson_unsigned_size(const std::uint64_t value) noexcept - { - return (value <= static_cast((std::numeric_limits::max)())) - ? sizeof(std::int32_t) - : sizeof(std::int64_t); - } - - /*! - @brief Writes a BSON element with key @a name and unsigned @a value - */ - void write_bson_unsigned(const string_t& name, - const BasicJsonType& j) - { - if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - write_bson_entry_header(name, 0x10 /* int32 */); - write_number(static_cast(j.m_value.number_unsigned)); - } - else if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - write_bson_entry_header(name, 0x12 /* int64 */); - write_number(static_cast(j.m_value.number_unsigned)); - } - else - { - JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(j.m_value.number_unsigned) + " cannot be represented by BSON as it does not fit int64", j)); - } - } - - /*! - @brief Writes a BSON element with key @a name and object @a value - */ - void write_bson_object_entry(const string_t& name, - const typename BasicJsonType::object_t& value) - { - write_bson_entry_header(name, 0x03); // object - write_bson_object(value); - } - - /*! - @return The size of the BSON-encoded array @a value - */ - static std::size_t calc_bson_array_size(const typename BasicJsonType::array_t& value) - { - std::size_t array_index = 0ul; - - const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), std::size_t(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el) - { - return result + calc_bson_element_size(std::to_string(array_index++), el); - }); - - return sizeof(std::int32_t) + embedded_document_size + 1ul; - } - - /*! - @return The size of the BSON-encoded binary array @a value - */ - static std::size_t calc_bson_binary_size(const typename BasicJsonType::binary_t& value) - { - return sizeof(std::int32_t) + value.size() + 1ul; - } - - /*! - @brief Writes a BSON element with key @a name and array @a value - */ - void write_bson_array(const string_t& name, - const typename BasicJsonType::array_t& value) - { - write_bson_entry_header(name, 0x04); // array - write_number(static_cast(calc_bson_array_size(value))); - - std::size_t array_index = 0ul; - - for (const auto& el : value) - { - write_bson_element(std::to_string(array_index++), el); - } - - oa->write_character(to_char_type(0x00)); - } - - /*! - @brief Writes a BSON element with key @a name and binary value @a value - */ - void write_bson_binary(const string_t& name, - const binary_t& value) - { - write_bson_entry_header(name, 0x05); - - write_number(static_cast(value.size())); - write_number(value.has_subtype() ? static_cast(value.subtype()) : std::uint8_t(0x00)); - - oa->write_characters(reinterpret_cast(value.data()), value.size()); - } - - /*! - @brief Calculates the size necessary to serialize the JSON value @a j with its @a name - @return The calculated size for the BSON document entry for @a j with the given @a name. - */ - static std::size_t calc_bson_element_size(const string_t& name, - const BasicJsonType& j) - { - const auto header_size = calc_bson_entry_header_size(name, j); - switch (j.type()) - { - case value_t::object: - return header_size + calc_bson_object_size(*j.m_value.object); - - case value_t::array: - return header_size + calc_bson_array_size(*j.m_value.array); - - case value_t::binary: - return header_size + calc_bson_binary_size(*j.m_value.binary); - - case value_t::boolean: - return header_size + 1ul; - - case value_t::number_float: - return header_size + 8ul; - - case value_t::number_integer: - return header_size + calc_bson_integer_size(j.m_value.number_integer); - - case value_t::number_unsigned: - return header_size + calc_bson_unsigned_size(j.m_value.number_unsigned); - - case value_t::string: - return header_size + calc_bson_string_size(*j.m_value.string); - - case value_t::null: - return header_size + 0ul; - - // LCOV_EXCL_START - case value_t::discarded: - default: - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) - return 0ul; - // LCOV_EXCL_STOP - } - } - - /*! - @brief Serializes the JSON value @a j to BSON and associates it with the - key @a name. - @param name The name to associate with the JSON entity @a j within the - current BSON document - */ - void write_bson_element(const string_t& name, - const BasicJsonType& j) - { - switch (j.type()) - { - case value_t::object: - return write_bson_object_entry(name, *j.m_value.object); - - case value_t::array: - return write_bson_array(name, *j.m_value.array); - - case value_t::binary: - return write_bson_binary(name, *j.m_value.binary); - - case value_t::boolean: - return write_bson_boolean(name, j.m_value.boolean); - - case value_t::number_float: - return write_bson_double(name, j.m_value.number_float); - - case value_t::number_integer: - return write_bson_integer(name, j.m_value.number_integer); - - case value_t::number_unsigned: - return write_bson_unsigned(name, j); - - case value_t::string: - return write_bson_string(name, *j.m_value.string); - - case value_t::null: - return write_bson_null(name); - - // LCOV_EXCL_START - case value_t::discarded: - default: - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) - return; - // LCOV_EXCL_STOP - } - } - - /*! - @brief Calculates the size of the BSON serialization of the given - JSON-object @a j. - @param[in] value JSON value to serialize - @pre value.type() == value_t::object - */ - static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value) - { - std::size_t document_size = std::accumulate(value.begin(), value.end(), std::size_t(0), - [](size_t result, const typename BasicJsonType::object_t::value_type & el) - { - return result += calc_bson_element_size(el.first, el.second); - }); - - return sizeof(std::int32_t) + document_size + 1ul; - } - - /*! - @param[in] value JSON value to serialize - @pre value.type() == value_t::object - */ - void write_bson_object(const typename BasicJsonType::object_t& value) - { - write_number(static_cast(calc_bson_object_size(value))); - - for (const auto& el : value) - { - write_bson_element(el.first, el.second); - } - - oa->write_character(to_char_type(0x00)); - } - - ////////// - // CBOR // - ////////// - - static constexpr CharType get_cbor_float_prefix(float /*unused*/) - { - return to_char_type(0xFA); // Single-Precision Float - } - - static constexpr CharType get_cbor_float_prefix(double /*unused*/) - { - return to_char_type(0xFB); // Double-Precision Float - } - - ///////////// - // MsgPack // - ///////////// - - static constexpr CharType get_msgpack_float_prefix(float /*unused*/) - { - return to_char_type(0xCA); // float 32 - } - - static constexpr CharType get_msgpack_float_prefix(double /*unused*/) - { - return to_char_type(0xCB); // float 64 - } - - //////////// - // UBJSON // - //////////// - - // UBJSON: write number (floating point) - template::value, int>::type = 0> - void write_number_with_ubjson_prefix(const NumberType n, - const bool add_prefix) - { - if (add_prefix) - { - oa->write_character(get_ubjson_float_prefix(n)); - } - write_number(n); - } - - // UBJSON: write number (unsigned integer) - template::value, int>::type = 0> - void write_number_with_ubjson_prefix(const NumberType n, - const bool add_prefix) - { - if (n <= static_cast((std::numeric_limits::max)())) - { - if (add_prefix) - { - oa->write_character(to_char_type('i')); // int8 - } - write_number(static_cast(n)); - } - else if (n <= (std::numeric_limits::max)()) - { - if (add_prefix) - { - oa->write_character(to_char_type('U')); // uint8 - } - write_number(static_cast(n)); - } - else if (n <= static_cast((std::numeric_limits::max)())) - { - if (add_prefix) - { - oa->write_character(to_char_type('I')); // int16 - } - write_number(static_cast(n)); - } - else if (n <= static_cast((std::numeric_limits::max)())) - { - if (add_prefix) - { - oa->write_character(to_char_type('l')); // int32 - } - write_number(static_cast(n)); - } - else if (n <= static_cast((std::numeric_limits::max)())) - { - if (add_prefix) - { - oa->write_character(to_char_type('L')); // int64 - } - write_number(static_cast(n)); - } - else - { - if (add_prefix) - { - oa->write_character(to_char_type('H')); // high-precision number - } - - const auto number = BasicJsonType(n).dump(); - write_number_with_ubjson_prefix(number.size(), true); - for (std::size_t i = 0; i < number.size(); ++i) - { - oa->write_character(to_char_type(static_cast(number[i]))); - } - } - } - - // UBJSON: write number (signed integer) - template < typename NumberType, typename std::enable_if < - std::is_signed::value&& - !std::is_floating_point::value, int >::type = 0 > - void write_number_with_ubjson_prefix(const NumberType n, - const bool add_prefix) - { - if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) - { - if (add_prefix) - { - oa->write_character(to_char_type('i')); // int8 - } - write_number(static_cast(n)); - } - else if (static_cast((std::numeric_limits::min)()) <= n && n <= static_cast((std::numeric_limits::max)())) - { - if (add_prefix) - { - oa->write_character(to_char_type('U')); // uint8 - } - write_number(static_cast(n)); - } - else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) - { - if (add_prefix) - { - oa->write_character(to_char_type('I')); // int16 - } - write_number(static_cast(n)); - } - else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) - { - if (add_prefix) - { - oa->write_character(to_char_type('l')); // int32 - } - write_number(static_cast(n)); - } - else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) - { - if (add_prefix) - { - oa->write_character(to_char_type('L')); // int64 - } - write_number(static_cast(n)); - } - // LCOV_EXCL_START - else - { - if (add_prefix) - { - oa->write_character(to_char_type('H')); // high-precision number - } - - const auto number = BasicJsonType(n).dump(); - write_number_with_ubjson_prefix(number.size(), true); - for (std::size_t i = 0; i < number.size(); ++i) - { - oa->write_character(to_char_type(static_cast(number[i]))); - } - } - // LCOV_EXCL_STOP - } - - /*! - @brief determine the type prefix of container values - */ - CharType ubjson_prefix(const BasicJsonType& j) const noexcept - { - switch (j.type()) - { - case value_t::null: - return 'Z'; - - case value_t::boolean: - return j.m_value.boolean ? 'T' : 'F'; - - case value_t::number_integer: - { - if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) - { - return 'i'; - } - if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) - { - return 'U'; - } - if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) - { - return 'I'; - } - if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) - { - return 'l'; - } - if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) - { - return 'L'; - } - // anything else is treated as high-precision number - return 'H'; // LCOV_EXCL_LINE - } - - case value_t::number_unsigned: - { - if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - return 'i'; - } - if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - return 'U'; - } - if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - return 'I'; - } - if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - return 'l'; - } - if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) - { - return 'L'; - } - // anything else is treated as high-precision number - return 'H'; // LCOV_EXCL_LINE - } - - case value_t::number_float: - return get_ubjson_float_prefix(j.m_value.number_float); - - case value_t::string: - return 'S'; - - case value_t::array: // fallthrough - case value_t::binary: - return '['; - - case value_t::object: - return '{'; - - case value_t::discarded: - default: // discarded values - return 'N'; - } - } - - static constexpr CharType get_ubjson_float_prefix(float /*unused*/) - { - return 'd'; // float 32 - } - - static constexpr CharType get_ubjson_float_prefix(double /*unused*/) - { - return 'D'; // float 64 - } - - /////////////////////// - // Utility functions // - /////////////////////// - - /* - @brief write a number to output input - @param[in] n number of type @a NumberType - @tparam NumberType the type of the number - @tparam OutputIsLittleEndian Set to true if output data is - required to be little endian - - @note This function needs to respect the system's endianess, because bytes - in CBOR, MessagePack, and UBJSON are stored in network order (big - endian) and therefore need reordering on little endian systems. - */ - template - void write_number(const NumberType n) - { - // step 1: write number to array of length NumberType - std::array vec{}; - std::memcpy(vec.data(), &n, sizeof(NumberType)); - - // step 2: write array to output (with possible reordering) - if (is_little_endian != OutputIsLittleEndian) - { - // reverse byte order prior to conversion if necessary - std::reverse(vec.begin(), vec.end()); - } - - oa->write_characters(vec.data(), sizeof(NumberType)); - } - - void write_compact_float(const number_float_t n, detail::input_format_t format) - { -#ifdef __GNUC__ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wfloat-equal" -#endif - if (static_cast(n) >= static_cast(std::numeric_limits::lowest()) && - static_cast(n) <= static_cast((std::numeric_limits::max)()) && - static_cast(static_cast(n)) == static_cast(n)) - { - oa->write_character(format == detail::input_format_t::cbor - ? get_cbor_float_prefix(static_cast(n)) - : get_msgpack_float_prefix(static_cast(n))); - write_number(static_cast(n)); - } - else - { - oa->write_character(format == detail::input_format_t::cbor - ? get_cbor_float_prefix(n) - : get_msgpack_float_prefix(n)); - write_number(n); - } -#ifdef __GNUC__ -#pragma GCC diagnostic pop -#endif - } - - public: - // The following to_char_type functions are implement the conversion - // between uint8_t and CharType. In case CharType is not unsigned, - // such a conversion is required to allow values greater than 128. - // See for a discussion. - template < typename C = CharType, - enable_if_t < std::is_signed::value && std::is_signed::value > * = nullptr > - static constexpr CharType to_char_type(std::uint8_t x) noexcept - { - return *reinterpret_cast(&x); - } - - template < typename C = CharType, - enable_if_t < std::is_signed::value && std::is_unsigned::value > * = nullptr > - static CharType to_char_type(std::uint8_t x) noexcept - { - static_assert(sizeof(std::uint8_t) == sizeof(CharType), "size of CharType must be equal to std::uint8_t"); - static_assert(std::is_trivial::value, "CharType must be trivial"); - CharType result; - std::memcpy(&result, &x, sizeof(x)); - return result; - } - - template::value>* = nullptr> - static constexpr CharType to_char_type(std::uint8_t x) noexcept - { - return x; - } - - template < typename InputCharType, typename C = CharType, - enable_if_t < - std::is_signed::value && - std::is_signed::value && - std::is_same::type>::value - > * = nullptr > - static constexpr CharType to_char_type(InputCharType x) noexcept - { - return x; - } - - private: - /// whether we can assume little endianess - const bool is_little_endian = little_endianess(); - - /// the output - output_adapter_t oa = nullptr; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - - -#include // reverse, remove, fill, find, none_of -#include // array -#include // localeconv, lconv -#include // labs, isfinite, isnan, signbit -#include // size_t, ptrdiff_t -#include // uint8_t -#include // snprintf -#include // numeric_limits -#include // string, char_traits -#include // is_same -#include // move - -// #include - - -#include // array -#include // signbit, isfinite -#include // intN_t, uintN_t -#include // memcpy, memmove -#include // numeric_limits -#include // conditional - -// #include - - -namespace nlohmann -{ -namespace detail -{ - -/*! -@brief implements the Grisu2 algorithm for binary to decimal floating-point -conversion. - -This implementation is a slightly modified version of the reference -implementation which may be obtained from -http://florian.loitsch.com/publications (bench.tar.gz). - -The code is distributed under the MIT license, Copyright (c) 2009 Florian Loitsch. - -For a detailed description of the algorithm see: - -[1] Loitsch, "Printing Floating-Point Numbers Quickly and Accurately with - Integers", Proceedings of the ACM SIGPLAN 2010 Conference on Programming - Language Design and Implementation, PLDI 2010 -[2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and Accurately", - Proceedings of the ACM SIGPLAN 1996 Conference on Programming Language - Design and Implementation, PLDI 1996 -*/ -namespace dtoa_impl -{ - -template -Target reinterpret_bits(const Source source) -{ - static_assert(sizeof(Target) == sizeof(Source), "size mismatch"); - - Target target; - std::memcpy(&target, &source, sizeof(Source)); - return target; -} - -struct diyfp // f * 2^e -{ - static constexpr int kPrecision = 64; // = q - - std::uint64_t f = 0; - int e = 0; - - constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {} - - /*! - @brief returns x - y - @pre x.e == y.e and x.f >= y.f - */ - static diyfp sub(const diyfp& x, const diyfp& y) noexcept - { - JSON_ASSERT(x.e == y.e); - JSON_ASSERT(x.f >= y.f); - - return {x.f - y.f, x.e}; - } - - /*! - @brief returns x * y - @note The result is rounded. (Only the upper q bits are returned.) - */ - static diyfp mul(const diyfp& x, const diyfp& y) noexcept - { - static_assert(kPrecision == 64, "internal error"); - - // Computes: - // f = round((x.f * y.f) / 2^q) - // e = x.e + y.e + q - - // Emulate the 64-bit * 64-bit multiplication: - // - // p = u * v - // = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi) - // = (u_lo v_lo ) + 2^32 ((u_lo v_hi ) + (u_hi v_lo )) + 2^64 (u_hi v_hi ) - // = (p0 ) + 2^32 ((p1 ) + (p2 )) + 2^64 (p3 ) - // = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3 ) - // = (p0_lo ) + 2^32 (p0_hi + p1_lo + p2_lo ) + 2^64 (p1_hi + p2_hi + p3) - // = (p0_lo ) + 2^32 (Q ) + 2^64 (H ) - // = (p0_lo ) + 2^32 (Q_lo + 2^32 Q_hi ) + 2^64 (H ) - // - // (Since Q might be larger than 2^32 - 1) - // - // = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H) - // - // (Q_hi + H does not overflow a 64-bit int) - // - // = p_lo + 2^64 p_hi - - const std::uint64_t u_lo = x.f & 0xFFFFFFFFu; - const std::uint64_t u_hi = x.f >> 32u; - const std::uint64_t v_lo = y.f & 0xFFFFFFFFu; - const std::uint64_t v_hi = y.f >> 32u; - - const std::uint64_t p0 = u_lo * v_lo; - const std::uint64_t p1 = u_lo * v_hi; - const std::uint64_t p2 = u_hi * v_lo; - const std::uint64_t p3 = u_hi * v_hi; - - const std::uint64_t p0_hi = p0 >> 32u; - const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu; - const std::uint64_t p1_hi = p1 >> 32u; - const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu; - const std::uint64_t p2_hi = p2 >> 32u; - - std::uint64_t Q = p0_hi + p1_lo + p2_lo; - - // The full product might now be computed as - // - // p_hi = p3 + p2_hi + p1_hi + (Q >> 32) - // p_lo = p0_lo + (Q << 32) - // - // But in this particular case here, the full p_lo is not required. - // Effectively we only need to add the highest bit in p_lo to p_hi (and - // Q_hi + 1 does not overflow). - - Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up - - const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u); - - return {h, x.e + y.e + 64}; - } - - /*! - @brief normalize x such that the significand is >= 2^(q-1) - @pre x.f != 0 - */ - static diyfp normalize(diyfp x) noexcept - { - JSON_ASSERT(x.f != 0); - - while ((x.f >> 63u) == 0) - { - x.f <<= 1u; - x.e--; - } - - return x; - } - - /*! - @brief normalize x such that the result has the exponent E - @pre e >= x.e and the upper e - x.e bits of x.f must be zero. - */ - static diyfp normalize_to(const diyfp& x, const int target_exponent) noexcept - { - const int delta = x.e - target_exponent; - - JSON_ASSERT(delta >= 0); - JSON_ASSERT(((x.f << delta) >> delta) == x.f); - - return {x.f << delta, target_exponent}; - } -}; - -struct boundaries -{ - diyfp w; - diyfp minus; - diyfp plus; -}; - -/*! -Compute the (normalized) diyfp representing the input number 'value' and its -boundaries. - -@pre value must be finite and positive -*/ -template -boundaries compute_boundaries(FloatType value) -{ - JSON_ASSERT(std::isfinite(value)); - JSON_ASSERT(value > 0); - - // Convert the IEEE representation into a diyfp. - // - // If v is denormal: - // value = 0.F * 2^(1 - bias) = ( F) * 2^(1 - bias - (p-1)) - // If v is normalized: - // value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1)) - - static_assert(std::numeric_limits::is_iec559, - "internal error: dtoa_short requires an IEEE-754 floating-point implementation"); - - constexpr int kPrecision = std::numeric_limits::digits; // = p (includes the hidden bit) - constexpr int kBias = std::numeric_limits::max_exponent - 1 + (kPrecision - 1); - constexpr int kMinExp = 1 - kBias; - constexpr std::uint64_t kHiddenBit = std::uint64_t{1} << (kPrecision - 1); // = 2^(p-1) - - using bits_type = typename std::conditional::type; - - const auto bits = static_cast(reinterpret_bits(value)); - const std::uint64_t E = bits >> (kPrecision - 1); - const std::uint64_t F = bits & (kHiddenBit - 1); - - const bool is_denormal = E == 0; - const diyfp v = is_denormal - ? diyfp(F, kMinExp) - : diyfp(F + kHiddenBit, static_cast(E) - kBias); - - // Compute the boundaries m- and m+ of the floating-point value - // v = f * 2^e. - // - // Determine v- and v+, the floating-point predecessor and successor if v, - // respectively. - // - // v- = v - 2^e if f != 2^(p-1) or e == e_min (A) - // = v - 2^(e-1) if f == 2^(p-1) and e > e_min (B) - // - // v+ = v + 2^e - // - // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_ - // between m- and m+ round to v, regardless of how the input rounding - // algorithm breaks ties. - // - // ---+-------------+-------------+-------------+-------------+--- (A) - // v- m- v m+ v+ - // - // -----------------+------+------+-------------+-------------+--- (B) - // v- m- v m+ v+ - - const bool lower_boundary_is_closer = F == 0 && E > 1; - const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1); - const diyfp m_minus = lower_boundary_is_closer - ? diyfp(4 * v.f - 1, v.e - 2) // (B) - : diyfp(2 * v.f - 1, v.e - 1); // (A) - - // Determine the normalized w+ = m+. - const diyfp w_plus = diyfp::normalize(m_plus); - - // Determine w- = m- such that e_(w-) = e_(w+). - const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e); - - return {diyfp::normalize(v), w_minus, w_plus}; -} - -// Given normalized diyfp w, Grisu needs to find a (normalized) cached -// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies -// within a certain range [alpha, gamma] (Definition 3.2 from [1]) -// -// alpha <= e = e_c + e_w + q <= gamma -// -// or -// -// f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q -// <= f_c * f_w * 2^gamma -// -// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies -// -// 2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma -// -// or -// -// 2^(q - 2 + alpha) <= c * w < 2^(q + gamma) -// -// The choice of (alpha,gamma) determines the size of the table and the form of -// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well -// in practice: -// -// The idea is to cut the number c * w = f * 2^e into two parts, which can be -// processed independently: An integral part p1, and a fractional part p2: -// -// f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e -// = (f div 2^-e) + (f mod 2^-e) * 2^e -// = p1 + p2 * 2^e -// -// The conversion of p1 into decimal form requires a series of divisions and -// modulos by (a power of) 10. These operations are faster for 32-bit than for -// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be -// achieved by choosing -// -// -e >= 32 or e <= -32 := gamma -// -// In order to convert the fractional part -// -// p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ... -// -// into decimal form, the fraction is repeatedly multiplied by 10 and the digits -// d[-i] are extracted in order: -// -// (10 * p2) div 2^-e = d[-1] -// (10 * p2) mod 2^-e = d[-2] / 10^1 + ... -// -// The multiplication by 10 must not overflow. It is sufficient to choose -// -// 10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64. -// -// Since p2 = f mod 2^-e < 2^-e, -// -// -e <= 60 or e >= -60 := alpha - -constexpr int kAlpha = -60; -constexpr int kGamma = -32; - -struct cached_power // c = f * 2^e ~= 10^k -{ - std::uint64_t f; - int e; - int k; -}; - -/*! -For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached -power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c -satisfies (Definition 3.2 from [1]) - - alpha <= e_c + e + q <= gamma. -*/ -inline cached_power get_cached_power_for_binary_exponent(int e) -{ - // Now - // - // alpha <= e_c + e + q <= gamma (1) - // ==> f_c * 2^alpha <= c * 2^e * 2^q - // - // and since the c's are normalized, 2^(q-1) <= f_c, - // - // ==> 2^(q - 1 + alpha) <= c * 2^(e + q) - // ==> 2^(alpha - e - 1) <= c - // - // If c were an exact power of ten, i.e. c = 10^k, one may determine k as - // - // k = ceil( log_10( 2^(alpha - e - 1) ) ) - // = ceil( (alpha - e - 1) * log_10(2) ) - // - // From the paper: - // "In theory the result of the procedure could be wrong since c is rounded, - // and the computation itself is approximated [...]. In practice, however, - // this simple function is sufficient." - // - // For IEEE double precision floating-point numbers converted into - // normalized diyfp's w = f * 2^e, with q = 64, - // - // e >= -1022 (min IEEE exponent) - // -52 (p - 1) - // -52 (p - 1, possibly normalize denormal IEEE numbers) - // -11 (normalize the diyfp) - // = -1137 - // - // and - // - // e <= +1023 (max IEEE exponent) - // -52 (p - 1) - // -11 (normalize the diyfp) - // = 960 - // - // This binary exponent range [-1137,960] results in a decimal exponent - // range [-307,324]. One does not need to store a cached power for each - // k in this range. For each such k it suffices to find a cached power - // such that the exponent of the product lies in [alpha,gamma]. - // This implies that the difference of the decimal exponents of adjacent - // table entries must be less than or equal to - // - // floor( (gamma - alpha) * log_10(2) ) = 8. - // - // (A smaller distance gamma-alpha would require a larger table.) - - // NB: - // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34. - - constexpr int kCachedPowersMinDecExp = -300; - constexpr int kCachedPowersDecStep = 8; - - static constexpr std::array kCachedPowers = - { - { - { 0xAB70FE17C79AC6CA, -1060, -300 }, - { 0xFF77B1FCBEBCDC4F, -1034, -292 }, - { 0xBE5691EF416BD60C, -1007, -284 }, - { 0x8DD01FAD907FFC3C, -980, -276 }, - { 0xD3515C2831559A83, -954, -268 }, - { 0x9D71AC8FADA6C9B5, -927, -260 }, - { 0xEA9C227723EE8BCB, -901, -252 }, - { 0xAECC49914078536D, -874, -244 }, - { 0x823C12795DB6CE57, -847, -236 }, - { 0xC21094364DFB5637, -821, -228 }, - { 0x9096EA6F3848984F, -794, -220 }, - { 0xD77485CB25823AC7, -768, -212 }, - { 0xA086CFCD97BF97F4, -741, -204 }, - { 0xEF340A98172AACE5, -715, -196 }, - { 0xB23867FB2A35B28E, -688, -188 }, - { 0x84C8D4DFD2C63F3B, -661, -180 }, - { 0xC5DD44271AD3CDBA, -635, -172 }, - { 0x936B9FCEBB25C996, -608, -164 }, - { 0xDBAC6C247D62A584, -582, -156 }, - { 0xA3AB66580D5FDAF6, -555, -148 }, - { 0xF3E2F893DEC3F126, -529, -140 }, - { 0xB5B5ADA8AAFF80B8, -502, -132 }, - { 0x87625F056C7C4A8B, -475, -124 }, - { 0xC9BCFF6034C13053, -449, -116 }, - { 0x964E858C91BA2655, -422, -108 }, - { 0xDFF9772470297EBD, -396, -100 }, - { 0xA6DFBD9FB8E5B88F, -369, -92 }, - { 0xF8A95FCF88747D94, -343, -84 }, - { 0xB94470938FA89BCF, -316, -76 }, - { 0x8A08F0F8BF0F156B, -289, -68 }, - { 0xCDB02555653131B6, -263, -60 }, - { 0x993FE2C6D07B7FAC, -236, -52 }, - { 0xE45C10C42A2B3B06, -210, -44 }, - { 0xAA242499697392D3, -183, -36 }, - { 0xFD87B5F28300CA0E, -157, -28 }, - { 0xBCE5086492111AEB, -130, -20 }, - { 0x8CBCCC096F5088CC, -103, -12 }, - { 0xD1B71758E219652C, -77, -4 }, - { 0x9C40000000000000, -50, 4 }, - { 0xE8D4A51000000000, -24, 12 }, - { 0xAD78EBC5AC620000, 3, 20 }, - { 0x813F3978F8940984, 30, 28 }, - { 0xC097CE7BC90715B3, 56, 36 }, - { 0x8F7E32CE7BEA5C70, 83, 44 }, - { 0xD5D238A4ABE98068, 109, 52 }, - { 0x9F4F2726179A2245, 136, 60 }, - { 0xED63A231D4C4FB27, 162, 68 }, - { 0xB0DE65388CC8ADA8, 189, 76 }, - { 0x83C7088E1AAB65DB, 216, 84 }, - { 0xC45D1DF942711D9A, 242, 92 }, - { 0x924D692CA61BE758, 269, 100 }, - { 0xDA01EE641A708DEA, 295, 108 }, - { 0xA26DA3999AEF774A, 322, 116 }, - { 0xF209787BB47D6B85, 348, 124 }, - { 0xB454E4A179DD1877, 375, 132 }, - { 0x865B86925B9BC5C2, 402, 140 }, - { 0xC83553C5C8965D3D, 428, 148 }, - { 0x952AB45CFA97A0B3, 455, 156 }, - { 0xDE469FBD99A05FE3, 481, 164 }, - { 0xA59BC234DB398C25, 508, 172 }, - { 0xF6C69A72A3989F5C, 534, 180 }, - { 0xB7DCBF5354E9BECE, 561, 188 }, - { 0x88FCF317F22241E2, 588, 196 }, - { 0xCC20CE9BD35C78A5, 614, 204 }, - { 0x98165AF37B2153DF, 641, 212 }, - { 0xE2A0B5DC971F303A, 667, 220 }, - { 0xA8D9D1535CE3B396, 694, 228 }, - { 0xFB9B7CD9A4A7443C, 720, 236 }, - { 0xBB764C4CA7A44410, 747, 244 }, - { 0x8BAB8EEFB6409C1A, 774, 252 }, - { 0xD01FEF10A657842C, 800, 260 }, - { 0x9B10A4E5E9913129, 827, 268 }, - { 0xE7109BFBA19C0C9D, 853, 276 }, - { 0xAC2820D9623BF429, 880, 284 }, - { 0x80444B5E7AA7CF85, 907, 292 }, - { 0xBF21E44003ACDD2D, 933, 300 }, - { 0x8E679C2F5E44FF8F, 960, 308 }, - { 0xD433179D9C8CB841, 986, 316 }, - { 0x9E19DB92B4E31BA9, 1013, 324 }, - } - }; - - // This computation gives exactly the same results for k as - // k = ceil((kAlpha - e - 1) * 0.30102999566398114) - // for |e| <= 1500, but doesn't require floating-point operations. - // NB: log_10(2) ~= 78913 / 2^18 - JSON_ASSERT(e >= -1500); - JSON_ASSERT(e <= 1500); - const int f = kAlpha - e - 1; - const int k = (f * 78913) / (1 << 18) + static_cast(f > 0); - - const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep; - JSON_ASSERT(index >= 0); - JSON_ASSERT(static_cast(index) < kCachedPowers.size()); - - const cached_power cached = kCachedPowers[static_cast(index)]; - JSON_ASSERT(kAlpha <= cached.e + e + 64); - JSON_ASSERT(kGamma >= cached.e + e + 64); - - return cached; -} - -/*! -For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. -For n == 0, returns 1 and sets pow10 := 1. -*/ -inline int find_largest_pow10(const std::uint32_t n, std::uint32_t& pow10) -{ - // LCOV_EXCL_START - if (n >= 1000000000) - { - pow10 = 1000000000; - return 10; - } - // LCOV_EXCL_STOP - if (n >= 100000000) - { - pow10 = 100000000; - return 9; - } - if (n >= 10000000) - { - pow10 = 10000000; - return 8; - } - if (n >= 1000000) - { - pow10 = 1000000; - return 7; - } - if (n >= 100000) - { - pow10 = 100000; - return 6; - } - if (n >= 10000) - { - pow10 = 10000; - return 5; - } - if (n >= 1000) - { - pow10 = 1000; - return 4; - } - if (n >= 100) - { - pow10 = 100; - return 3; - } - if (n >= 10) - { - pow10 = 10; - return 2; - } - - pow10 = 1; - return 1; -} - -inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t delta, - std::uint64_t rest, std::uint64_t ten_k) -{ - JSON_ASSERT(len >= 1); - JSON_ASSERT(dist <= delta); - JSON_ASSERT(rest <= delta); - JSON_ASSERT(ten_k > 0); - - // <--------------------------- delta ----> - // <---- dist ---------> - // --------------[------------------+-------------------]-------------- - // M- w M+ - // - // ten_k - // <------> - // <---- rest ----> - // --------------[------------------+----+--------------]-------------- - // w V - // = buf * 10^k - // - // ten_k represents a unit-in-the-last-place in the decimal representation - // stored in buf. - // Decrement buf by ten_k while this takes buf closer to w. - - // The tests are written in this order to avoid overflow in unsigned - // integer arithmetic. - - while (rest < dist - && delta - rest >= ten_k - && (rest + ten_k < dist || dist - rest > rest + ten_k - dist)) - { - JSON_ASSERT(buf[len - 1] != '0'); - buf[len - 1]--; - rest += ten_k; - } -} - -/*! -Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. -M- and M+ must be normalized and share the same exponent -60 <= e <= -32. -*/ -inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent, - diyfp M_minus, diyfp w, diyfp M_plus) -{ - static_assert(kAlpha >= -60, "internal error"); - static_assert(kGamma <= -32, "internal error"); - - // Generates the digits (and the exponent) of a decimal floating-point - // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's - // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= gamma. - // - // <--------------------------- delta ----> - // <---- dist ---------> - // --------------[------------------+-------------------]-------------- - // M- w M+ - // - // Grisu2 generates the digits of M+ from left to right and stops as soon as - // V is in [M-,M+]. - - JSON_ASSERT(M_plus.e >= kAlpha); - JSON_ASSERT(M_plus.e <= kGamma); - - std::uint64_t delta = diyfp::sub(M_plus, M_minus).f; // (significand of (M+ - M-), implicit exponent is e) - std::uint64_t dist = diyfp::sub(M_plus, w ).f; // (significand of (M+ - w ), implicit exponent is e) - - // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0): - // - // M+ = f * 2^e - // = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e - // = ((p1 ) * 2^-e + (p2 )) * 2^e - // = p1 + p2 * 2^e - - const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e); - - auto p1 = static_cast(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.) - std::uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e - - // 1) - // - // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0] - - JSON_ASSERT(p1 > 0); - - std::uint32_t pow10{}; - const int k = find_largest_pow10(p1, pow10); - - // 10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1) - // - // p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1)) - // = (d[k-1] ) * 10^(k-1) + (p1 mod 10^(k-1)) - // - // M+ = p1 + p2 * 2^e - // = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1)) + p2 * 2^e - // = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e - // = d[k-1] * 10^(k-1) + ( rest) * 2^e - // - // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0) - // - // p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0] - // - // but stop as soon as - // - // rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e - - int n = k; - while (n > 0) - { - // Invariants: - // M+ = buffer * 10^n + (p1 + p2 * 2^e) (buffer = 0 for n = k) - // pow10 = 10^(n-1) <= p1 < 10^n - // - const std::uint32_t d = p1 / pow10; // d = p1 div 10^(n-1) - const std::uint32_t r = p1 % pow10; // r = p1 mod 10^(n-1) - // - // M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e - // = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e) - // - JSON_ASSERT(d <= 9); - buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d - // - // M+ = buffer * 10^(n-1) + (r + p2 * 2^e) - // - p1 = r; - n--; - // - // M+ = buffer * 10^n + (p1 + p2 * 2^e) - // pow10 = 10^n - // - - // Now check if enough digits have been generated. - // Compute - // - // p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e - // - // Note: - // Since rest and delta share the same exponent e, it suffices to - // compare the significands. - const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2; - if (rest <= delta) - { - // V = buffer * 10^n, with M- <= V <= M+. - - decimal_exponent += n; - - // We may now just stop. But instead look if the buffer could be - // decremented to bring V closer to w. - // - // pow10 = 10^n is now 1 ulp in the decimal representation V. - // The rounding procedure works with diyfp's with an implicit - // exponent of e. - // - // 10^n = (10^n * 2^-e) * 2^e = ulp * 2^e - // - const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e; - grisu2_round(buffer, length, dist, delta, rest, ten_n); - - return; - } - - pow10 /= 10; - // - // pow10 = 10^(n-1) <= p1 < 10^n - // Invariants restored. - } - - // 2) - // - // The digits of the integral part have been generated: - // - // M+ = d[k-1]...d[1]d[0] + p2 * 2^e - // = buffer + p2 * 2^e - // - // Now generate the digits of the fractional part p2 * 2^e. - // - // Note: - // No decimal point is generated: the exponent is adjusted instead. - // - // p2 actually represents the fraction - // - // p2 * 2^e - // = p2 / 2^-e - // = d[-1] / 10^1 + d[-2] / 10^2 + ... - // - // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...) - // - // p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m - // + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...) - // - // using - // - // 10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e) - // = ( d) * 2^-e + ( r) - // - // or - // 10^m * p2 * 2^e = d + r * 2^e - // - // i.e. - // - // M+ = buffer + p2 * 2^e - // = buffer + 10^-m * (d + r * 2^e) - // = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e - // - // and stop as soon as 10^-m * r * 2^e <= delta * 2^e - - JSON_ASSERT(p2 > delta); - - int m = 0; - for (;;) - { - // Invariant: - // M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) * 2^e - // = buffer * 10^-m + 10^-m * (p2 ) * 2^e - // = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e - // = buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + (10*p2 mod 2^-e)) * 2^e - // - JSON_ASSERT(p2 <= (std::numeric_limits::max)() / 10); - p2 *= 10; - const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e - const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e - // - // M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e - // = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e)) - // = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e - // - JSON_ASSERT(d <= 9); - buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d - // - // M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e - // - p2 = r; - m++; - // - // M+ = buffer * 10^-m + 10^-m * p2 * 2^e - // Invariant restored. - - // Check if enough digits have been generated. - // - // 10^-m * p2 * 2^e <= delta * 2^e - // p2 * 2^e <= 10^m * delta * 2^e - // p2 <= 10^m * delta - delta *= 10; - dist *= 10; - if (p2 <= delta) - { - break; - } - } - - // V = buffer * 10^-m, with M- <= V <= M+. - - decimal_exponent -= m; - - // 1 ulp in the decimal representation is now 10^-m. - // Since delta and dist are now scaled by 10^m, we need to do the - // same with ulp in order to keep the units in sync. - // - // 10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e - // - const std::uint64_t ten_m = one.f; - grisu2_round(buffer, length, dist, delta, p2, ten_m); - - // By construction this algorithm generates the shortest possible decimal - // number (Loitsch, Theorem 6.2) which rounds back to w. - // For an input number of precision p, at least - // - // N = 1 + ceil(p * log_10(2)) - // - // decimal digits are sufficient to identify all binary floating-point - // numbers (Matula, "In-and-Out conversions"). - // This implies that the algorithm does not produce more than N decimal - // digits. - // - // N = 17 for p = 53 (IEEE double precision) - // N = 9 for p = 24 (IEEE single precision) -} - -/*! -v = buf * 10^decimal_exponent -len is the length of the buffer (number of decimal digits) -The buffer must be large enough, i.e. >= max_digits10. -*/ -JSON_HEDLEY_NON_NULL(1) -inline void grisu2(char* buf, int& len, int& decimal_exponent, - diyfp m_minus, diyfp v, diyfp m_plus) -{ - JSON_ASSERT(m_plus.e == m_minus.e); - JSON_ASSERT(m_plus.e == v.e); - - // --------(-----------------------+-----------------------)-------- (A) - // m- v m+ - // - // --------------------(-----------+-----------------------)-------- (B) - // m- v m+ - // - // First scale v (and m- and m+) such that the exponent is in the range - // [alpha, gamma]. - - const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e); - - const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k - - // The exponent of the products is = v.e + c_minus_k.e + q and is in the range [alpha,gamma] - const diyfp w = diyfp::mul(v, c_minus_k); - const diyfp w_minus = diyfp::mul(m_minus, c_minus_k); - const diyfp w_plus = diyfp::mul(m_plus, c_minus_k); - - // ----(---+---)---------------(---+---)---------------(---+---)---- - // w- w w+ - // = c*m- = c*v = c*m+ - // - // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and - // w+ are now off by a small amount. - // In fact: - // - // w - v * 10^k < 1 ulp - // - // To account for this inaccuracy, add resp. subtract 1 ulp. - // - // --------+---[---------------(---+---)---------------]---+-------- - // w- M- w M+ w+ - // - // Now any number in [M-, M+] (bounds included) will round to w when input, - // regardless of how the input rounding algorithm breaks ties. - // - // And digit_gen generates the shortest possible such number in [M-, M+]. - // Note that this does not mean that Grisu2 always generates the shortest - // possible number in the interval (m-, m+). - const diyfp M_minus(w_minus.f + 1, w_minus.e); - const diyfp M_plus (w_plus.f - 1, w_plus.e ); - - decimal_exponent = -cached.k; // = -(-k) = k - - grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus); -} - -/*! -v = buf * 10^decimal_exponent -len is the length of the buffer (number of decimal digits) -The buffer must be large enough, i.e. >= max_digits10. -*/ -template -JSON_HEDLEY_NON_NULL(1) -void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value) -{ - static_assert(diyfp::kPrecision >= std::numeric_limits::digits + 3, - "internal error: not enough precision"); - - JSON_ASSERT(std::isfinite(value)); - JSON_ASSERT(value > 0); - - // If the neighbors (and boundaries) of 'value' are always computed for double-precision - // numbers, all float's can be recovered using strtod (and strtof). However, the resulting - // decimal representations are not exactly "short". - // - // The documentation for 'std::to_chars' (https://en.cppreference.com/w/cpp/utility/to_chars) - // says "value is converted to a string as if by std::sprintf in the default ("C") locale" - // and since sprintf promotes float's to double's, I think this is exactly what 'std::to_chars' - // does. - // On the other hand, the documentation for 'std::to_chars' requires that "parsing the - // representation using the corresponding std::from_chars function recovers value exactly". That - // indicates that single precision floating-point numbers should be recovered using - // 'std::strtof'. - // - // NB: If the neighbors are computed for single-precision numbers, there is a single float - // (7.0385307e-26f) which can't be recovered using strtod. The resulting double precision - // value is off by 1 ulp. -#if 0 - const boundaries w = compute_boundaries(static_cast(value)); -#else - const boundaries w = compute_boundaries(value); -#endif - - grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus); -} - -/*! -@brief appends a decimal representation of e to buf -@return a pointer to the element following the exponent. -@pre -1000 < e < 1000 -*/ -JSON_HEDLEY_NON_NULL(1) -JSON_HEDLEY_RETURNS_NON_NULL -inline char* append_exponent(char* buf, int e) -{ - JSON_ASSERT(e > -1000); - JSON_ASSERT(e < 1000); - - if (e < 0) - { - e = -e; - *buf++ = '-'; - } - else - { - *buf++ = '+'; - } - - auto k = static_cast(e); - if (k < 10) - { - // Always print at least two digits in the exponent. - // This is for compatibility with printf("%g"). - *buf++ = '0'; - *buf++ = static_cast('0' + k); - } - else if (k < 100) - { - *buf++ = static_cast('0' + k / 10); - k %= 10; - *buf++ = static_cast('0' + k); - } - else - { - *buf++ = static_cast('0' + k / 100); - k %= 100; - *buf++ = static_cast('0' + k / 10); - k %= 10; - *buf++ = static_cast('0' + k); - } - - return buf; -} - -/*! -@brief prettify v = buf * 10^decimal_exponent - -If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point -notation. Otherwise it will be printed in exponential notation. - -@pre min_exp < 0 -@pre max_exp > 0 -*/ -JSON_HEDLEY_NON_NULL(1) -JSON_HEDLEY_RETURNS_NON_NULL -inline char* format_buffer(char* buf, int len, int decimal_exponent, - int min_exp, int max_exp) -{ - JSON_ASSERT(min_exp < 0); - JSON_ASSERT(max_exp > 0); - - const int k = len; - const int n = len + decimal_exponent; - - // v = buf * 10^(n-k) - // k is the length of the buffer (number of decimal digits) - // n is the position of the decimal point relative to the start of the buffer. - - if (k <= n && n <= max_exp) - { - // digits[000] - // len <= max_exp + 2 - - std::memset(buf + k, '0', static_cast(n) - static_cast(k)); - // Make it look like a floating-point number (#362, #378) - buf[n + 0] = '.'; - buf[n + 1] = '0'; - return buf + (static_cast(n) + 2); - } - - if (0 < n && n <= max_exp) - { - // dig.its - // len <= max_digits10 + 1 - - JSON_ASSERT(k > n); - - std::memmove(buf + (static_cast(n) + 1), buf + n, static_cast(k) - static_cast(n)); - buf[n] = '.'; - return buf + (static_cast(k) + 1U); - } - - if (min_exp < n && n <= 0) - { - // 0.[000]digits - // len <= 2 + (-min_exp - 1) + max_digits10 - - std::memmove(buf + (2 + static_cast(-n)), buf, static_cast(k)); - buf[0] = '0'; - buf[1] = '.'; - std::memset(buf + 2, '0', static_cast(-n)); - return buf + (2U + static_cast(-n) + static_cast(k)); - } - - if (k == 1) - { - // dE+123 - // len <= 1 + 5 - - buf += 1; - } - else - { - // d.igitsE+123 - // len <= max_digits10 + 1 + 5 - - std::memmove(buf + 2, buf + 1, static_cast(k) - 1); - buf[1] = '.'; - buf += 1 + static_cast(k); - } - - *buf++ = 'e'; - return append_exponent(buf, n - 1); -} - -} // namespace dtoa_impl - -/*! -@brief generates a decimal representation of the floating-point number value in [first, last). - -The format of the resulting decimal representation is similar to printf's %g -format. Returns an iterator pointing past-the-end of the decimal representation. - -@note The input number must be finite, i.e. NaN's and Inf's are not supported. -@note The buffer must be large enough. -@note The result is NOT null-terminated. -*/ -template -JSON_HEDLEY_NON_NULL(1, 2) -JSON_HEDLEY_RETURNS_NON_NULL -char* to_chars(char* first, const char* last, FloatType value) -{ - static_cast(last); // maybe unused - fix warning - JSON_ASSERT(std::isfinite(value)); - - // Use signbit(value) instead of (value < 0) since signbit works for -0. - if (std::signbit(value)) - { - value = -value; - *first++ = '-'; - } - -#ifdef __GNUC__ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wfloat-equal" -#endif - if (value == 0) // +-0 - { - *first++ = '0'; - // Make it look like a floating-point number (#362, #378) - *first++ = '.'; - *first++ = '0'; - return first; - } -#ifdef __GNUC__ -#pragma GCC diagnostic pop -#endif - - JSON_ASSERT(last - first >= std::numeric_limits::max_digits10); - - // Compute v = buffer * 10^decimal_exponent. - // The decimal digits are stored in the buffer, which needs to be interpreted - // as an unsigned decimal integer. - // len is the length of the buffer, i.e. the number of decimal digits. - int len = 0; - int decimal_exponent = 0; - dtoa_impl::grisu2(first, len, decimal_exponent, value); - - JSON_ASSERT(len <= std::numeric_limits::max_digits10); - - // Format the buffer like printf("%.*g", prec, value) - constexpr int kMinExp = -4; - // Use digits10 here to increase compatibility with version 2. - constexpr int kMaxExp = std::numeric_limits::digits10; - - JSON_ASSERT(last - first >= kMaxExp + 2); - JSON_ASSERT(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits::max_digits10); - JSON_ASSERT(last - first >= std::numeric_limits::max_digits10 + 6); - - return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, kMaxExp); -} - -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - -// #include - -// #include - -// #include - -// #include - - -namespace nlohmann -{ -namespace detail -{ -/////////////////// -// serialization // -/////////////////// - -/// how to treat decoding errors -enum class error_handler_t -{ - strict, ///< throw a type_error exception in case of invalid UTF-8 - replace, ///< replace invalid UTF-8 sequences with U+FFFD - ignore ///< ignore invalid UTF-8 sequences -}; - -template -class serializer -{ - using string_t = typename BasicJsonType::string_t; - using number_float_t = typename BasicJsonType::number_float_t; - using number_integer_t = typename BasicJsonType::number_integer_t; - using number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using binary_char_t = typename BasicJsonType::binary_t::value_type; - static constexpr std::uint8_t UTF8_ACCEPT = 0; - static constexpr std::uint8_t UTF8_REJECT = 1; - - public: - /*! - @param[in] s output stream to serialize to - @param[in] ichar indentation character to use - @param[in] error_handler_ how to react on decoding errors - */ - serializer(output_adapter_t s, const char ichar, - error_handler_t error_handler_ = error_handler_t::strict) - : o(std::move(s)) - , loc(std::localeconv()) - , thousands_sep(loc->thousands_sep == nullptr ? '\0' : std::char_traits::to_char_type(* (loc->thousands_sep))) - , decimal_point(loc->decimal_point == nullptr ? '\0' : std::char_traits::to_char_type(* (loc->decimal_point))) - , indent_char(ichar) - , indent_string(512, indent_char) - , error_handler(error_handler_) - {} - - // delete because of pointer members - serializer(const serializer&) = delete; - serializer& operator=(const serializer&) = delete; - serializer(serializer&&) = delete; - serializer& operator=(serializer&&) = delete; - ~serializer() = default; - - /*! - @brief internal implementation of the serialization function - - This function is called by the public member function dump and organizes - the serialization internally. The indentation level is propagated as - additional parameter. In case of arrays and objects, the function is - called recursively. - - - strings and object keys are escaped using `escape_string()` - - integer numbers are converted implicitly via `operator<<` - - floating-point numbers are converted to a string using `"%g"` format - - binary values are serialized as objects containing the subtype and the - byte array - - @param[in] val value to serialize - @param[in] pretty_print whether the output shall be pretty-printed - @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters - in the output are escaped with `\uXXXX` sequences, and the result consists - of ASCII characters only. - @param[in] indent_step the indent level - @param[in] current_indent the current indent level (only used internally) - */ - void dump(const BasicJsonType& val, - const bool pretty_print, - const bool ensure_ascii, - const unsigned int indent_step, - const unsigned int current_indent = 0) - { - switch (val.m_type) - { - case value_t::object: - { - if (val.m_value.object->empty()) - { - o->write_characters("{}", 2); - return; - } - - if (pretty_print) - { - o->write_characters("{\n", 2); - - // variable to hold indentation for recursive calls - const auto new_indent = current_indent + indent_step; - if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) - { - indent_string.resize(indent_string.size() * 2, ' '); - } - - // first n-1 elements - auto i = val.m_value.object->cbegin(); - for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i) - { - o->write_characters(indent_string.c_str(), new_indent); - o->write_character('\"'); - dump_escaped(i->first, ensure_ascii); - o->write_characters("\": ", 3); - dump(i->second, true, ensure_ascii, indent_step, new_indent); - o->write_characters(",\n", 2); - } - - // last element - JSON_ASSERT(i != val.m_value.object->cend()); - JSON_ASSERT(std::next(i) == val.m_value.object->cend()); - o->write_characters(indent_string.c_str(), new_indent); - o->write_character('\"'); - dump_escaped(i->first, ensure_ascii); - o->write_characters("\": ", 3); - dump(i->second, true, ensure_ascii, indent_step, new_indent); - - o->write_character('\n'); - o->write_characters(indent_string.c_str(), current_indent); - o->write_character('}'); - } - else - { - o->write_character('{'); - - // first n-1 elements - auto i = val.m_value.object->cbegin(); - for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i) - { - o->write_character('\"'); - dump_escaped(i->first, ensure_ascii); - o->write_characters("\":", 2); - dump(i->second, false, ensure_ascii, indent_step, current_indent); - o->write_character(','); - } - - // last element - JSON_ASSERT(i != val.m_value.object->cend()); - JSON_ASSERT(std::next(i) == val.m_value.object->cend()); - o->write_character('\"'); - dump_escaped(i->first, ensure_ascii); - o->write_characters("\":", 2); - dump(i->second, false, ensure_ascii, indent_step, current_indent); - - o->write_character('}'); - } - - return; - } - - case value_t::array: - { - if (val.m_value.array->empty()) - { - o->write_characters("[]", 2); - return; - } - - if (pretty_print) - { - o->write_characters("[\n", 2); - - // variable to hold indentation for recursive calls - const auto new_indent = current_indent + indent_step; - if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) - { - indent_string.resize(indent_string.size() * 2, ' '); - } - - // first n-1 elements - for (auto i = val.m_value.array->cbegin(); - i != val.m_value.array->cend() - 1; ++i) - { - o->write_characters(indent_string.c_str(), new_indent); - dump(*i, true, ensure_ascii, indent_step, new_indent); - o->write_characters(",\n", 2); - } - - // last element - JSON_ASSERT(!val.m_value.array->empty()); - o->write_characters(indent_string.c_str(), new_indent); - dump(val.m_value.array->back(), true, ensure_ascii, indent_step, new_indent); - - o->write_character('\n'); - o->write_characters(indent_string.c_str(), current_indent); - o->write_character(']'); - } - else - { - o->write_character('['); - - // first n-1 elements - for (auto i = val.m_value.array->cbegin(); - i != val.m_value.array->cend() - 1; ++i) - { - dump(*i, false, ensure_ascii, indent_step, current_indent); - o->write_character(','); - } - - // last element - JSON_ASSERT(!val.m_value.array->empty()); - dump(val.m_value.array->back(), false, ensure_ascii, indent_step, current_indent); - - o->write_character(']'); - } - - return; - } - - case value_t::string: - { - o->write_character('\"'); - dump_escaped(*val.m_value.string, ensure_ascii); - o->write_character('\"'); - return; - } - - case value_t::binary: - { - if (pretty_print) - { - o->write_characters("{\n", 2); - - // variable to hold indentation for recursive calls - const auto new_indent = current_indent + indent_step; - if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) - { - indent_string.resize(indent_string.size() * 2, ' '); - } - - o->write_characters(indent_string.c_str(), new_indent); - - o->write_characters("\"bytes\": [", 10); - - if (!val.m_value.binary->empty()) - { - for (auto i = val.m_value.binary->cbegin(); - i != val.m_value.binary->cend() - 1; ++i) - { - dump_integer(*i); - o->write_characters(", ", 2); - } - dump_integer(val.m_value.binary->back()); - } - - o->write_characters("],\n", 3); - o->write_characters(indent_string.c_str(), new_indent); - - o->write_characters("\"subtype\": ", 11); - if (val.m_value.binary->has_subtype()) - { - dump_integer(val.m_value.binary->subtype()); - } - else - { - o->write_characters("null", 4); - } - o->write_character('\n'); - o->write_characters(indent_string.c_str(), current_indent); - o->write_character('}'); - } - else - { - o->write_characters("{\"bytes\":[", 10); - - if (!val.m_value.binary->empty()) - { - for (auto i = val.m_value.binary->cbegin(); - i != val.m_value.binary->cend() - 1; ++i) - { - dump_integer(*i); - o->write_character(','); - } - dump_integer(val.m_value.binary->back()); - } - - o->write_characters("],\"subtype\":", 12); - if (val.m_value.binary->has_subtype()) - { - dump_integer(val.m_value.binary->subtype()); - o->write_character('}'); - } - else - { - o->write_characters("null}", 5); - } - } - return; - } - - case value_t::boolean: - { - if (val.m_value.boolean) - { - o->write_characters("true", 4); - } - else - { - o->write_characters("false", 5); - } - return; - } - - case value_t::number_integer: - { - dump_integer(val.m_value.number_integer); - return; - } - - case value_t::number_unsigned: - { - dump_integer(val.m_value.number_unsigned); - return; - } - - case value_t::number_float: - { - dump_float(val.m_value.number_float); - return; - } - - case value_t::discarded: - { - o->write_characters("", 11); - return; - } - - case value_t::null: - { - o->write_characters("null", 4); - return; - } - - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - } - - JSON_PRIVATE_UNLESS_TESTED: - /*! - @brief dump escaped string - - Escape a string by replacing certain special characters by a sequence of an - escape character (backslash) and another character and other control - characters by a sequence of "\u" followed by a four-digit hex - representation. The escaped string is written to output stream @a o. - - @param[in] s the string to escape - @param[in] ensure_ascii whether to escape non-ASCII characters with - \uXXXX sequences - - @complexity Linear in the length of string @a s. - */ - void dump_escaped(const string_t& s, const bool ensure_ascii) - { - std::uint32_t codepoint{}; - std::uint8_t state = UTF8_ACCEPT; - std::size_t bytes = 0; // number of bytes written to string_buffer - - // number of bytes written at the point of the last valid byte - std::size_t bytes_after_last_accept = 0; - std::size_t undumped_chars = 0; - - for (std::size_t i = 0; i < s.size(); ++i) - { - const auto byte = static_cast(s[i]); - - switch (decode(state, codepoint, byte)) - { - case UTF8_ACCEPT: // decode found a new code point - { - switch (codepoint) - { - case 0x08: // backspace - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = 'b'; - break; - } - - case 0x09: // horizontal tab - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = 't'; - break; - } - - case 0x0A: // newline - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = 'n'; - break; - } - - case 0x0C: // formfeed - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = 'f'; - break; - } - - case 0x0D: // carriage return - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = 'r'; - break; - } - - case 0x22: // quotation mark - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = '\"'; - break; - } - - case 0x5C: // reverse solidus - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = '\\'; - break; - } - - default: - { - // escape control characters (0x00..0x1F) or, if - // ensure_ascii parameter is used, non-ASCII characters - if ((codepoint <= 0x1F) || (ensure_ascii && (codepoint >= 0x7F))) - { - if (codepoint <= 0xFFFF) - { - // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - (std::snprintf)(string_buffer.data() + bytes, 7, "\\u%04x", - static_cast(codepoint)); - bytes += 6; - } - else - { - // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - (std::snprintf)(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x", - static_cast(0xD7C0u + (codepoint >> 10u)), - static_cast(0xDC00u + (codepoint & 0x3FFu))); - bytes += 12; - } - } - else - { - // copy byte to buffer (all previous bytes - // been copied have in default case above) - string_buffer[bytes++] = s[i]; - } - break; - } - } - - // write buffer and reset index; there must be 13 bytes - // left, as this is the maximal number of bytes to be - // written ("\uxxxx\uxxxx\0") for one code point - if (string_buffer.size() - bytes < 13) - { - o->write_characters(string_buffer.data(), bytes); - bytes = 0; - } - - // remember the byte position of this accept - bytes_after_last_accept = bytes; - undumped_chars = 0; - break; - } - - case UTF8_REJECT: // decode found invalid UTF-8 byte - { - switch (error_handler) - { - case error_handler_t::strict: - { - std::string sn(9, '\0'); - // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - (std::snprintf)(&sn[0], sn.size(), "%.2X", byte); - JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + sn, BasicJsonType())); - } - - case error_handler_t::ignore: - case error_handler_t::replace: - { - // in case we saw this character the first time, we - // would like to read it again, because the byte - // may be OK for itself, but just not OK for the - // previous sequence - if (undumped_chars > 0) - { - --i; - } - - // reset length buffer to the last accepted index; - // thus removing/ignoring the invalid characters - bytes = bytes_after_last_accept; - - if (error_handler == error_handler_t::replace) - { - // add a replacement character - if (ensure_ascii) - { - string_buffer[bytes++] = '\\'; - string_buffer[bytes++] = 'u'; - string_buffer[bytes++] = 'f'; - string_buffer[bytes++] = 'f'; - string_buffer[bytes++] = 'f'; - string_buffer[bytes++] = 'd'; - } - else - { - string_buffer[bytes++] = detail::binary_writer::to_char_type('\xEF'); - string_buffer[bytes++] = detail::binary_writer::to_char_type('\xBF'); - string_buffer[bytes++] = detail::binary_writer::to_char_type('\xBD'); - } - - // write buffer and reset index; there must be 13 bytes - // left, as this is the maximal number of bytes to be - // written ("\uxxxx\uxxxx\0") for one code point - if (string_buffer.size() - bytes < 13) - { - o->write_characters(string_buffer.data(), bytes); - bytes = 0; - } - - bytes_after_last_accept = bytes; - } - - undumped_chars = 0; - - // continue processing the string - state = UTF8_ACCEPT; - break; - } - - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - break; - } - - default: // decode found yet incomplete multi-byte code point - { - if (!ensure_ascii) - { - // code point will not be escaped - copy byte to buffer - string_buffer[bytes++] = s[i]; - } - ++undumped_chars; - break; - } - } - } - - // we finished processing the string - if (JSON_HEDLEY_LIKELY(state == UTF8_ACCEPT)) - { - // write buffer - if (bytes > 0) - { - o->write_characters(string_buffer.data(), bytes); - } - } - else - { - // we finish reading, but do not accept: string was incomplete - switch (error_handler) - { - case error_handler_t::strict: - { - std::string sn(9, '\0'); - // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - (std::snprintf)(&sn[0], sn.size(), "%.2X", static_cast(s.back())); - JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + sn, BasicJsonType())); - } - - case error_handler_t::ignore: - { - // write all accepted bytes - o->write_characters(string_buffer.data(), bytes_after_last_accept); - break; - } - - case error_handler_t::replace: - { - // write all accepted bytes - o->write_characters(string_buffer.data(), bytes_after_last_accept); - // add a replacement character - if (ensure_ascii) - { - o->write_characters("\\ufffd", 6); - } - else - { - o->write_characters("\xEF\xBF\xBD", 3); - } - break; - } - - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - } - } - - private: - /*! - @brief count digits - - Count the number of decimal (base 10) digits for an input unsigned integer. - - @param[in] x unsigned integer number to count its digits - @return number of decimal digits - */ - inline unsigned int count_digits(number_unsigned_t x) noexcept - { - unsigned int n_digits = 1; - for (;;) - { - if (x < 10) - { - return n_digits; - } - if (x < 100) - { - return n_digits + 1; - } - if (x < 1000) - { - return n_digits + 2; - } - if (x < 10000) - { - return n_digits + 3; - } - x = x / 10000u; - n_digits += 4; - } - } - - /*! - @brief dump an integer - - Dump a given integer to output stream @a o. Works internally with - @a number_buffer. - - @param[in] x integer number (signed or unsigned) to dump - @tparam NumberType either @a number_integer_t or @a number_unsigned_t - */ - template < typename NumberType, detail::enable_if_t < - std::is_integral::value || - std::is_same::value || - std::is_same::value || - std::is_same::value, - int > = 0 > - void dump_integer(NumberType x) - { - static constexpr std::array, 100> digits_to_99 - { - { - {{'0', '0'}}, {{'0', '1'}}, {{'0', '2'}}, {{'0', '3'}}, {{'0', '4'}}, {{'0', '5'}}, {{'0', '6'}}, {{'0', '7'}}, {{'0', '8'}}, {{'0', '9'}}, - {{'1', '0'}}, {{'1', '1'}}, {{'1', '2'}}, {{'1', '3'}}, {{'1', '4'}}, {{'1', '5'}}, {{'1', '6'}}, {{'1', '7'}}, {{'1', '8'}}, {{'1', '9'}}, - {{'2', '0'}}, {{'2', '1'}}, {{'2', '2'}}, {{'2', '3'}}, {{'2', '4'}}, {{'2', '5'}}, {{'2', '6'}}, {{'2', '7'}}, {{'2', '8'}}, {{'2', '9'}}, - {{'3', '0'}}, {{'3', '1'}}, {{'3', '2'}}, {{'3', '3'}}, {{'3', '4'}}, {{'3', '5'}}, {{'3', '6'}}, {{'3', '7'}}, {{'3', '8'}}, {{'3', '9'}}, - {{'4', '0'}}, {{'4', '1'}}, {{'4', '2'}}, {{'4', '3'}}, {{'4', '4'}}, {{'4', '5'}}, {{'4', '6'}}, {{'4', '7'}}, {{'4', '8'}}, {{'4', '9'}}, - {{'5', '0'}}, {{'5', '1'}}, {{'5', '2'}}, {{'5', '3'}}, {{'5', '4'}}, {{'5', '5'}}, {{'5', '6'}}, {{'5', '7'}}, {{'5', '8'}}, {{'5', '9'}}, - {{'6', '0'}}, {{'6', '1'}}, {{'6', '2'}}, {{'6', '3'}}, {{'6', '4'}}, {{'6', '5'}}, {{'6', '6'}}, {{'6', '7'}}, {{'6', '8'}}, {{'6', '9'}}, - {{'7', '0'}}, {{'7', '1'}}, {{'7', '2'}}, {{'7', '3'}}, {{'7', '4'}}, {{'7', '5'}}, {{'7', '6'}}, {{'7', '7'}}, {{'7', '8'}}, {{'7', '9'}}, - {{'8', '0'}}, {{'8', '1'}}, {{'8', '2'}}, {{'8', '3'}}, {{'8', '4'}}, {{'8', '5'}}, {{'8', '6'}}, {{'8', '7'}}, {{'8', '8'}}, {{'8', '9'}}, - {{'9', '0'}}, {{'9', '1'}}, {{'9', '2'}}, {{'9', '3'}}, {{'9', '4'}}, {{'9', '5'}}, {{'9', '6'}}, {{'9', '7'}}, {{'9', '8'}}, {{'9', '9'}}, - } - }; - - // special case for "0" - if (x == 0) - { - o->write_character('0'); - return; - } - - // use a pointer to fill the buffer - auto buffer_ptr = number_buffer.begin(); // NOLINT(llvm-qualified-auto,readability-qualified-auto,cppcoreguidelines-pro-type-vararg,hicpp-vararg) - - const bool is_negative = std::is_signed::value && !(x >= 0); // see issue #755 - number_unsigned_t abs_value; - - unsigned int n_chars{}; - - if (is_negative) - { - *buffer_ptr = '-'; - abs_value = remove_sign(static_cast(x)); - - // account one more byte for the minus sign - n_chars = 1 + count_digits(abs_value); - } - else - { - abs_value = static_cast(x); - n_chars = count_digits(abs_value); - } - - // spare 1 byte for '\0' - JSON_ASSERT(n_chars < number_buffer.size() - 1); - - // jump to the end to generate the string from backward - // so we later avoid reversing the result - buffer_ptr += n_chars; - - // Fast int2ascii implementation inspired by "Fastware" talk by Andrei Alexandrescu - // See: https://www.youtube.com/watch?v=o4-CwDo2zpg - while (abs_value >= 100) - { - const auto digits_index = static_cast((abs_value % 100)); - abs_value /= 100; - *(--buffer_ptr) = digits_to_99[digits_index][1]; - *(--buffer_ptr) = digits_to_99[digits_index][0]; - } - - if (abs_value >= 10) - { - const auto digits_index = static_cast(abs_value); - *(--buffer_ptr) = digits_to_99[digits_index][1]; - *(--buffer_ptr) = digits_to_99[digits_index][0]; - } - else - { - *(--buffer_ptr) = static_cast('0' + abs_value); - } - - o->write_characters(number_buffer.data(), n_chars); - } - - /*! - @brief dump a floating-point number - - Dump a given floating-point number to output stream @a o. Works internally - with @a number_buffer. - - @param[in] x floating-point number to dump - */ - void dump_float(number_float_t x) - { - // NaN / inf - if (!std::isfinite(x)) - { - o->write_characters("null", 4); - return; - } - - // If number_float_t is an IEEE-754 single or double precision number, - // use the Grisu2 algorithm to produce short numbers which are - // guaranteed to round-trip, using strtof and strtod, resp. - // - // NB: The test below works if == . - static constexpr bool is_ieee_single_or_double - = (std::numeric_limits::is_iec559 && std::numeric_limits::digits == 24 && std::numeric_limits::max_exponent == 128) || - (std::numeric_limits::is_iec559 && std::numeric_limits::digits == 53 && std::numeric_limits::max_exponent == 1024); - - dump_float(x, std::integral_constant()); - } - - void dump_float(number_float_t x, std::true_type /*is_ieee_single_or_double*/) - { - auto* begin = number_buffer.data(); - auto* end = ::nlohmann::detail::to_chars(begin, begin + number_buffer.size(), x); - - o->write_characters(begin, static_cast(end - begin)); - } - - void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/) - { - // get number of digits for a float -> text -> float round-trip - static constexpr auto d = std::numeric_limits::max_digits10; - - // the actual conversion - // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) - std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x); - - // negative value indicates an error - JSON_ASSERT(len > 0); - // check if buffer was large enough - JSON_ASSERT(static_cast(len) < number_buffer.size()); - - // erase thousands separator - if (thousands_sep != '\0') - { - auto* const end = std::remove(number_buffer.begin(), - number_buffer.begin() + len, thousands_sep); - std::fill(end, number_buffer.end(), '\0'); - JSON_ASSERT((end - number_buffer.begin()) <= len); - len = (end - number_buffer.begin()); - } - - // convert decimal point to '.' - if (decimal_point != '\0' && decimal_point != '.') - { - auto* const dec_pos = std::find(number_buffer.begin(), number_buffer.end(), decimal_point); - if (dec_pos != number_buffer.end()) - { - *dec_pos = '.'; - } - } - - o->write_characters(number_buffer.data(), static_cast(len)); - - // determine if need to append ".0" - const bool value_is_int_like = - std::none_of(number_buffer.begin(), number_buffer.begin() + len + 1, - [](char c) - { - return c == '.' || c == 'e'; - }); - - if (value_is_int_like) - { - o->write_characters(".0", 2); - } - } - - /*! - @brief check whether a string is UTF-8 encoded - - The function checks each byte of a string whether it is UTF-8 encoded. The - result of the check is stored in the @a state parameter. The function must - be called initially with state 0 (accept). State 1 means the string must - be rejected, because the current byte is not allowed. If the string is - completely processed, but the state is non-zero, the string ended - prematurely; that is, the last byte indicated more bytes should have - followed. - - @param[in,out] state the state of the decoding - @param[in,out] codep codepoint (valid only if resulting state is UTF8_ACCEPT) - @param[in] byte next byte to decode - @return new state - - @note The function has been edited: a std::array is used. - - @copyright Copyright (c) 2008-2009 Bjoern Hoehrmann - @sa http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ - */ - static std::uint8_t decode(std::uint8_t& state, std::uint32_t& codep, const std::uint8_t byte) noexcept - { - static const std::array utf8d = - { - { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00..1F - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20..3F - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40..5F - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60..7F - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // 80..9F - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // A0..BF - 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // C0..DF - 0xA, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x4, 0x3, 0x3, // E0..EF - 0xB, 0x6, 0x6, 0x6, 0x5, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, // F0..FF - 0x0, 0x1, 0x2, 0x3, 0x5, 0x8, 0x7, 0x1, 0x1, 0x1, 0x4, 0x6, 0x1, 0x1, 0x1, 0x1, // s0..s0 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, // s1..s2 - 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, // s3..s4 - 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, // s5..s6 - 1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // s7..s8 - } - }; - - JSON_ASSERT(byte < utf8d.size()); - const std::uint8_t type = utf8d[byte]; - - codep = (state != UTF8_ACCEPT) - ? (byte & 0x3fu) | (codep << 6u) - : (0xFFu >> type) & (byte); - - std::size_t index = 256u + static_cast(state) * 16u + static_cast(type); - JSON_ASSERT(index < 400); - state = utf8d[index]; - return state; - } - - /* - * Overload to make the compiler happy while it is instantiating - * dump_integer for number_unsigned_t. - * Must never be called. - */ - number_unsigned_t remove_sign(number_unsigned_t x) - { - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - return x; // LCOV_EXCL_LINE - } - - /* - * Helper function for dump_integer - * - * This function takes a negative signed integer and returns its absolute - * value as unsigned integer. The plus/minus shuffling is necessary as we can - * not directly remove the sign of an arbitrary signed integer as the - * absolute values of INT_MIN and INT_MAX are usually not the same. See - * #1708 for details. - */ - inline number_unsigned_t remove_sign(number_integer_t x) noexcept - { - JSON_ASSERT(x < 0 && x < (std::numeric_limits::max)()); // NOLINT(misc-redundant-expression) - return static_cast(-(x + 1)) + 1; - } - - private: - /// the output of the serializer - output_adapter_t o = nullptr; - - /// a (hopefully) large enough character buffer - std::array number_buffer{{}}; - - /// the locale - const std::lconv* loc = nullptr; - /// the locale's thousand separator character - const char thousands_sep = '\0'; - /// the locale's decimal point character - const char decimal_point = '\0'; - - /// string buffer - std::array string_buffer{{}}; - - /// the indentation character - const char indent_char; - /// the indentation string - string_t indent_string; - - /// error_handler how to react on decoding errors - const error_handler_t error_handler; -}; -} // namespace detail -} // namespace nlohmann - -// #include - -// #include - -// #include - - -#include // less -#include // initializer_list -#include // input_iterator_tag, iterator_traits -#include // allocator -#include // for out_of_range -#include // enable_if, is_convertible -#include // pair -#include // vector - -// #include - - -namespace nlohmann -{ - -/// ordered_map: a minimal map-like container that preserves insertion order -/// for use within nlohmann::basic_json -template , - class Allocator = std::allocator>> - struct ordered_map : std::vector, Allocator> -{ - using key_type = Key; - using mapped_type = T; - using Container = std::vector, Allocator>; - using typename Container::iterator; - using typename Container::const_iterator; - using typename Container::size_type; - using typename Container::value_type; - - // Explicit constructors instead of `using Container::Container` - // otherwise older compilers choke on it (GCC <= 5.5, xcode <= 9.4) - ordered_map(const Allocator& alloc = Allocator()) : Container{alloc} {} - template - ordered_map(It first, It last, const Allocator& alloc = Allocator()) - : Container{first, last, alloc} {} - ordered_map(std::initializer_list init, const Allocator& alloc = Allocator() ) - : Container{init, alloc} {} - - std::pair emplace(const key_type& key, T&& t) - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - return {it, false}; - } - } - Container::emplace_back(key, t); - return {--this->end(), true}; - } - - T& operator[](const Key& key) - { - return emplace(key, T{}).first->second; - } - - const T& operator[](const Key& key) const - { - return at(key); - } - - T& at(const Key& key) - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - return it->second; - } - } - - JSON_THROW(std::out_of_range("key not found")); - } - - const T& at(const Key& key) const - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - return it->second; - } - } - - JSON_THROW(std::out_of_range("key not found")); - } - - size_type erase(const Key& key) - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - // Since we cannot move const Keys, re-construct them in place - for (auto next = it; ++next != this->end(); ++it) - { - it->~value_type(); // Destroy but keep allocation - new (&*it) value_type{std::move(*next)}; - } - Container::pop_back(); - return 1; - } - } - return 0; - } - - iterator erase(iterator pos) - { - auto it = pos; - - // Since we cannot move const Keys, re-construct them in place - for (auto next = it; ++next != this->end(); ++it) - { - it->~value_type(); // Destroy but keep allocation - new (&*it) value_type{std::move(*next)}; - } - Container::pop_back(); - return pos; - } - - size_type count(const Key& key) const - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - return 1; - } - } - return 0; - } - - iterator find(const Key& key) - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - return it; - } - } - return Container::end(); - } - - const_iterator find(const Key& key) const - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == key) - { - return it; - } - } - return Container::end(); - } - - std::pair insert( value_type&& value ) - { - return emplace(value.first, std::move(value.second)); - } - - std::pair insert( const value_type& value ) - { - for (auto it = this->begin(); it != this->end(); ++it) - { - if (it->first == value.first) - { - return {it, false}; - } - } - Container::push_back(value); - return {--this->end(), true}; - } - - template - using require_input_iter = typename std::enable_if::iterator_category, - std::input_iterator_tag>::value>::type; - - template> - void insert(InputIt first, InputIt last) - { - for (auto it = first; it != last; ++it) - { - insert(*it); - } - } -}; - -} // namespace nlohmann - - -#if defined(JSON_HAS_CPP_17) - #include -#endif - -/*! -@brief namespace for Niels Lohmann -@see https://github.com/nlohmann -@since version 1.0.0 -*/ -namespace nlohmann -{ - -/*! -@brief a class to store JSON values - -@tparam ObjectType type for JSON objects (`std::map` by default; will be used -in @ref object_t) -@tparam ArrayType type for JSON arrays (`std::vector` by default; will be used -in @ref array_t) -@tparam StringType type for JSON strings and object keys (`std::string` by -default; will be used in @ref string_t) -@tparam BooleanType type for JSON booleans (`bool` by default; will be used -in @ref boolean_t) -@tparam NumberIntegerType type for JSON integer numbers (`int64_t` by -default; will be used in @ref number_integer_t) -@tparam NumberUnsignedType type for JSON unsigned integer numbers (@c -`uint64_t` by default; will be used in @ref number_unsigned_t) -@tparam NumberFloatType type for JSON floating-point numbers (`double` by -default; will be used in @ref number_float_t) -@tparam BinaryType type for packed binary data for compatibility with binary -serialization formats (`std::vector` by default; will be used in -@ref binary_t) -@tparam AllocatorType type of the allocator to use (`std::allocator` by -default) -@tparam JSONSerializer the serializer to resolve internal calls to `to_json()` -and `from_json()` (@ref adl_serializer by default) - -@requirement The class satisfies the following concept requirements: -- Basic - - [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible): - JSON values can be default constructed. The result will be a JSON null - value. - - [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible): - A JSON value can be constructed from an rvalue argument. - - [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible): - A JSON value can be copy-constructed from an lvalue expression. - - [MoveAssignable](https://en.cppreference.com/w/cpp/named_req/MoveAssignable): - A JSON value van be assigned from an rvalue argument. - - [CopyAssignable](https://en.cppreference.com/w/cpp/named_req/CopyAssignable): - A JSON value can be copy-assigned from an lvalue expression. - - [Destructible](https://en.cppreference.com/w/cpp/named_req/Destructible): - JSON values can be destructed. -- Layout - - [StandardLayoutType](https://en.cppreference.com/w/cpp/named_req/StandardLayoutType): - JSON values have - [standard layout](https://en.cppreference.com/w/cpp/language/data_members#Standard_layout): - All non-static data members are private and standard layout types, the - class has no virtual functions or (virtual) base classes. -- Library-wide - - [EqualityComparable](https://en.cppreference.com/w/cpp/named_req/EqualityComparable): - JSON values can be compared with `==`, see @ref - operator==(const_reference,const_reference). - - [LessThanComparable](https://en.cppreference.com/w/cpp/named_req/LessThanComparable): - JSON values can be compared with `<`, see @ref - operator<(const_reference,const_reference). - - [Swappable](https://en.cppreference.com/w/cpp/named_req/Swappable): - Any JSON lvalue or rvalue of can be swapped with any lvalue or rvalue of - other compatible types, using unqualified function call @ref swap(). - - [NullablePointer](https://en.cppreference.com/w/cpp/named_req/NullablePointer): - JSON values can be compared against `std::nullptr_t` objects which are used - to model the `null` value. -- Container - - [Container](https://en.cppreference.com/w/cpp/named_req/Container): - JSON values can be used like STL containers and provide iterator access. - - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer); - JSON values can be used like STL containers and provide reverse iterator - access. - -@invariant The member variables @a m_value and @a m_type have the following -relationship: -- If `m_type == value_t::object`, then `m_value.object != nullptr`. -- If `m_type == value_t::array`, then `m_value.array != nullptr`. -- If `m_type == value_t::string`, then `m_value.string != nullptr`. -The invariants are checked by member function assert_invariant(). - -@internal -@note ObjectType trick from https://stackoverflow.com/a/9860911 -@endinternal - -@see [RFC 8259: The JavaScript Object Notation (JSON) Data Interchange -Format](https://tools.ietf.org/html/rfc8259) - -@since version 1.0.0 - -@nosubgrouping -*/ -NLOHMANN_BASIC_JSON_TPL_DECLARATION -class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-special-member-functions) -{ - private: - template friend struct detail::external_constructor; - friend ::nlohmann::json_pointer; - - template - friend class ::nlohmann::detail::parser; - friend ::nlohmann::detail::serializer; - template - friend class ::nlohmann::detail::iter_impl; - template - friend class ::nlohmann::detail::binary_writer; - template - friend class ::nlohmann::detail::binary_reader; - template - friend class ::nlohmann::detail::json_sax_dom_parser; - template - friend class ::nlohmann::detail::json_sax_dom_callback_parser; - friend class ::nlohmann::detail::exception; - - /// workaround type for MSVC - using basic_json_t = NLOHMANN_BASIC_JSON_TPL; - - JSON_PRIVATE_UNLESS_TESTED: - // convenience aliases for types residing in namespace detail; - using lexer = ::nlohmann::detail::lexer_base; - - template - static ::nlohmann::detail::parser parser( - InputAdapterType adapter, - detail::parser_callback_tcb = nullptr, - const bool allow_exceptions = true, - const bool ignore_comments = false - ) - { - return ::nlohmann::detail::parser(std::move(adapter), - std::move(cb), allow_exceptions, ignore_comments); - } - - private: - using primitive_iterator_t = ::nlohmann::detail::primitive_iterator_t; - template - using internal_iterator = ::nlohmann::detail::internal_iterator; - template - using iter_impl = ::nlohmann::detail::iter_impl; - template - using iteration_proxy = ::nlohmann::detail::iteration_proxy; - template using json_reverse_iterator = ::nlohmann::detail::json_reverse_iterator; - - template - using output_adapter_t = ::nlohmann::detail::output_adapter_t; - - template - using binary_reader = ::nlohmann::detail::binary_reader; - template using binary_writer = ::nlohmann::detail::binary_writer; - - JSON_PRIVATE_UNLESS_TESTED: - using serializer = ::nlohmann::detail::serializer; - - public: - using value_t = detail::value_t; - /// JSON Pointer, see @ref nlohmann::json_pointer - using json_pointer = ::nlohmann::json_pointer; - template - using json_serializer = JSONSerializer; - /// how to treat decoding errors - using error_handler_t = detail::error_handler_t; - /// how to treat CBOR tags - using cbor_tag_handler_t = detail::cbor_tag_handler_t; - /// helper type for initializer lists of basic_json values - using initializer_list_t = std::initializer_list>; - - using input_format_t = detail::input_format_t; - /// SAX interface type, see @ref nlohmann::json_sax - using json_sax_t = json_sax; - - //////////////// - // exceptions // - //////////////// - - /// @name exceptions - /// Classes to implement user-defined exceptions. - /// @{ - - /// @copydoc detail::exception - using exception = detail::exception; - /// @copydoc detail::parse_error - using parse_error = detail::parse_error; - /// @copydoc detail::invalid_iterator - using invalid_iterator = detail::invalid_iterator; - /// @copydoc detail::type_error - using type_error = detail::type_error; - /// @copydoc detail::out_of_range - using out_of_range = detail::out_of_range; - /// @copydoc detail::other_error - using other_error = detail::other_error; - - /// @} - - - ///////////////////// - // container types // - ///////////////////// - - /// @name container types - /// The canonic container types to use @ref basic_json like any other STL - /// container. - /// @{ - - /// the type of elements in a basic_json container - using value_type = basic_json; - - /// the type of an element reference - using reference = value_type&; - /// the type of an element const reference - using const_reference = const value_type&; - - /// a type to represent differences between iterators - using difference_type = std::ptrdiff_t; - /// a type to represent container sizes - using size_type = std::size_t; - - /// the allocator type - using allocator_type = AllocatorType; - - /// the type of an element pointer - using pointer = typename std::allocator_traits::pointer; - /// the type of an element const pointer - using const_pointer = typename std::allocator_traits::const_pointer; - - /// an iterator for a basic_json container - using iterator = iter_impl; - /// a const iterator for a basic_json container - using const_iterator = iter_impl; - /// a reverse iterator for a basic_json container - using reverse_iterator = json_reverse_iterator; - /// a const reverse iterator for a basic_json container - using const_reverse_iterator = json_reverse_iterator; - - /// @} - - - /*! - @brief returns the allocator associated with the container - */ - static allocator_type get_allocator() - { - return allocator_type(); - } - - /*! - @brief returns version information on the library - - This function returns a JSON object with information about the library, - including the version number and information on the platform and compiler. - - @return JSON object holding version information - key | description - ----------- | --------------- - `compiler` | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version). - `copyright` | The copyright line for the library as string. - `name` | The name of the library as string. - `platform` | The used platform as string. Possible values are `win32`, `linux`, `apple`, `unix`, and `unknown`. - `url` | The URL of the project as string. - `version` | The version of the library. It is an object with the following keys: `major`, `minor`, and `patch` as defined by [Semantic Versioning](http://semver.org), and `string` (the version string). - - @liveexample{The following code shows an example output of the `meta()` - function.,meta} - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @complexity Constant. - - @since 2.1.0 - */ - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json meta() - { - basic_json result; - - result["copyright"] = "(C) 2013-2021 Niels Lohmann"; - result["name"] = "JSON for Modern C++"; - result["url"] = "https://github.com/nlohmann/json"; - result["version"]["string"] = - std::to_string(NLOHMANN_JSON_VERSION_MAJOR) + "." + - std::to_string(NLOHMANN_JSON_VERSION_MINOR) + "." + - std::to_string(NLOHMANN_JSON_VERSION_PATCH); - result["version"]["major"] = NLOHMANN_JSON_VERSION_MAJOR; - result["version"]["minor"] = NLOHMANN_JSON_VERSION_MINOR; - result["version"]["patch"] = NLOHMANN_JSON_VERSION_PATCH; - -#ifdef _WIN32 - result["platform"] = "win32"; -#elif defined __linux__ - result["platform"] = "linux"; -#elif defined __APPLE__ - result["platform"] = "apple"; -#elif defined __unix__ - result["platform"] = "unix"; -#else - result["platform"] = "unknown"; -#endif - -#if defined(__ICC) || defined(__INTEL_COMPILER) - result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}}; -#elif defined(__clang__) - result["compiler"] = {{"family", "clang"}, {"version", __clang_version__}}; -#elif defined(__GNUC__) || defined(__GNUG__) - result["compiler"] = {{"family", "gcc"}, {"version", std::to_string(__GNUC__) + "." + std::to_string(__GNUC_MINOR__) + "." + std::to_string(__GNUC_PATCHLEVEL__)}}; -#elif defined(__HP_cc) || defined(__HP_aCC) - result["compiler"] = "hp" -#elif defined(__IBMCPP__) - result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}}; -#elif defined(_MSC_VER) - result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}}; -#elif defined(__PGI) - result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}}; -#elif defined(__SUNPRO_CC) - result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}}; -#else - result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}}; -#endif - -#ifdef __cplusplus - result["compiler"]["c++"] = std::to_string(__cplusplus); -#else - result["compiler"]["c++"] = "unknown"; -#endif - return result; - } - - - /////////////////////////// - // JSON value data types // - /////////////////////////// - - /// @name JSON value data types - /// The data types to store a JSON value. These types are derived from - /// the template arguments passed to class @ref basic_json. - /// @{ - -#if defined(JSON_HAS_CPP_14) - // Use transparent comparator if possible, combined with perfect forwarding - // on find() and count() calls prevents unnecessary string construction. - using object_comparator_t = std::less<>; -#else - using object_comparator_t = std::less; -#endif - - /*! - @brief a type for an object - - [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON objects as follows: - > An object is an unordered collection of zero or more name/value pairs, - > where a name is a string and a value is a string, number, boolean, null, - > object, or array. - - To store objects in C++, a type is defined by the template parameters - described below. - - @tparam ObjectType the container to store objects (e.g., `std::map` or - `std::unordered_map`) - @tparam StringType the type of the keys or names (e.g., `std::string`). - The comparison function `std::less` is used to order elements - inside the container. - @tparam AllocatorType the allocator to use for objects (e.g., - `std::allocator`) - - #### Default type - - With the default values for @a ObjectType (`std::map`), @a StringType - (`std::string`), and @a AllocatorType (`std::allocator`), the default - value for @a object_t is: - - @code {.cpp} - std::map< - std::string, // key_type - basic_json, // value_type - std::less, // key_compare - std::allocator> // allocator_type - > - @endcode - - #### Behavior - - The choice of @a object_t influences the behavior of the JSON class. With - the default type, objects have the following behavior: - - - When all names are unique, objects will be interoperable in the sense - that all software implementations receiving that object will agree on - the name-value mappings. - - When the names within an object are not unique, it is unspecified which - one of the values for a given key will be chosen. For instance, - `{"key": 2, "key": 1}` could be equal to either `{"key": 1}` or - `{"key": 2}`. - - Internally, name/value pairs are stored in lexicographical order of the - names. Objects will also be serialized (see @ref dump) in this order. - For instance, `{"b": 1, "a": 2}` and `{"a": 2, "b": 1}` will be stored - and serialized as `{"a": 2, "b": 1}`. - - When comparing objects, the order of the name/value pairs is irrelevant. - This makes objects interoperable in the sense that they will not be - affected by these differences. For instance, `{"b": 1, "a": 2}` and - `{"a": 2, "b": 1}` will be treated as equal. - - #### Limits - - [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: - > An implementation may set limits on the maximum depth of nesting. - - In this class, the object's limit of nesting is not explicitly constrained. - However, a maximum depth of nesting may be introduced by the compiler or - runtime environment. A theoretical limit can be queried by calling the - @ref max_size function of a JSON object. - - #### Storage - - Objects are stored as pointers in a @ref basic_json type. That is, for any - access to object values, a pointer of type `object_t*` must be - dereferenced. - - @sa see @ref array_t -- type for an array value - - @since version 1.0.0 - - @note The order name/value pairs are added to the object is *not* - preserved by the library. Therefore, iterating an object may return - name/value pairs in a different order than they were originally stored. In - fact, keys will be traversed in alphabetical order as `std::map` with - `std::less` is used by default. Please note this behavior conforms to [RFC - 8259](https://tools.ietf.org/html/rfc8259), because any order implements the - specified "unordered" nature of JSON objects. - */ - using object_t = ObjectType>>; - - /*! - @brief a type for an array - - [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON arrays as follows: - > An array is an ordered sequence of zero or more values. - - To store objects in C++, a type is defined by the template parameters - explained below. - - @tparam ArrayType container type to store arrays (e.g., `std::vector` or - `std::list`) - @tparam AllocatorType allocator to use for arrays (e.g., `std::allocator`) - - #### Default type - - With the default values for @a ArrayType (`std::vector`) and @a - AllocatorType (`std::allocator`), the default value for @a array_t is: - - @code {.cpp} - std::vector< - basic_json, // value_type - std::allocator // allocator_type - > - @endcode - - #### Limits - - [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: - > An implementation may set limits on the maximum depth of nesting. - - In this class, the array's limit of nesting is not explicitly constrained. - However, a maximum depth of nesting may be introduced by the compiler or - runtime environment. A theoretical limit can be queried by calling the - @ref max_size function of a JSON array. - - #### Storage - - Arrays are stored as pointers in a @ref basic_json type. That is, for any - access to array values, a pointer of type `array_t*` must be dereferenced. - - @sa see @ref object_t -- type for an object value - - @since version 1.0.0 - */ - using array_t = ArrayType>; - - /*! - @brief a type for a string - - [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON strings as follows: - > A string is a sequence of zero or more Unicode characters. - - To store objects in C++, a type is defined by the template parameter - described below. Unicode values are split by the JSON class into - byte-sized characters during deserialization. - - @tparam StringType the container to store strings (e.g., `std::string`). - Note this container is used for keys/names in objects, see @ref object_t. - - #### Default type - - With the default values for @a StringType (`std::string`), the default - value for @a string_t is: - - @code {.cpp} - std::string - @endcode - - #### Encoding - - Strings are stored in UTF-8 encoding. Therefore, functions like - `std::string::size()` or `std::string::length()` return the number of - bytes in the string rather than the number of characters or glyphs. - - #### String comparison - - [RFC 8259](https://tools.ietf.org/html/rfc8259) states: - > Software implementations are typically required to test names of object - > members for equality. Implementations that transform the textual - > representation into sequences of Unicode code units and then perform the - > comparison numerically, code unit by code unit, are interoperable in the - > sense that implementations will agree in all cases on equality or - > inequality of two strings. For example, implementations that compare - > strings with escaped characters unconverted may incorrectly find that - > `"a\\b"` and `"a\u005Cb"` are not equal. - - This implementation is interoperable as it does compare strings code unit - by code unit. - - #### Storage - - String values are stored as pointers in a @ref basic_json type. That is, - for any access to string values, a pointer of type `string_t*` must be - dereferenced. - - @since version 1.0.0 - */ - using string_t = StringType; - - /*! - @brief a type for a boolean - - [RFC 8259](https://tools.ietf.org/html/rfc8259) implicitly describes a boolean as a - type which differentiates the two literals `true` and `false`. - - To store objects in C++, a type is defined by the template parameter @a - BooleanType which chooses the type to use. - - #### Default type - - With the default values for @a BooleanType (`bool`), the default value for - @a boolean_t is: - - @code {.cpp} - bool - @endcode - - #### Storage - - Boolean values are stored directly inside a @ref basic_json type. - - @since version 1.0.0 - */ - using boolean_t = BooleanType; - - /*! - @brief a type for a number (integer) - - [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows: - > The representation of numbers is similar to that used in most - > programming languages. A number is represented in base 10 using decimal - > digits. It contains an integer component that may be prefixed with an - > optional minus sign, which may be followed by a fraction part and/or an - > exponent part. Leading zeros are not allowed. (...) Numeric values that - > cannot be represented in the grammar below (such as Infinity and NaN) - > are not permitted. - - This description includes both integer and floating-point numbers. - However, C++ allows more precise storage if it is known whether the number - is a signed integer, an unsigned integer or a floating-point number. - Therefore, three different types, @ref number_integer_t, @ref - number_unsigned_t and @ref number_float_t are used. - - To store integer numbers in C++, a type is defined by the template - parameter @a NumberIntegerType which chooses the type to use. - - #### Default type - - With the default values for @a NumberIntegerType (`int64_t`), the default - value for @a number_integer_t is: - - @code {.cpp} - int64_t - @endcode - - #### Default behavior - - - The restrictions about leading zeros is not enforced in C++. Instead, - leading zeros in integer literals lead to an interpretation as octal - number. Internally, the value will be stored as decimal number. For - instance, the C++ integer literal `010` will be serialized to `8`. - During deserialization, leading zeros yield an error. - - Not-a-number (NaN) values will be serialized to `null`. - - #### Limits - - [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: - > An implementation may set limits on the range and precision of numbers. - - When the default type is used, the maximal integer number that can be - stored is `9223372036854775807` (INT64_MAX) and the minimal integer number - that can be stored is `-9223372036854775808` (INT64_MIN). Integer numbers - that are out of range will yield over/underflow when used in a - constructor. During deserialization, too large or small integer numbers - will be automatically be stored as @ref number_unsigned_t or @ref - number_float_t. - - [RFC 8259](https://tools.ietf.org/html/rfc8259) further states: - > Note that when such software is used, numbers that are integers and are - > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense - > that implementations will agree exactly on their numeric values. - - As this range is a subrange of the exactly supported range [INT64_MIN, - INT64_MAX], this class's integer type is interoperable. - - #### Storage - - Integer number values are stored directly inside a @ref basic_json type. - - @sa see @ref number_float_t -- type for number values (floating-point) - - @sa see @ref number_unsigned_t -- type for number values (unsigned integer) - - @since version 1.0.0 - */ - using number_integer_t = NumberIntegerType; - - /*! - @brief a type for a number (unsigned) - - [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows: - > The representation of numbers is similar to that used in most - > programming languages. A number is represented in base 10 using decimal - > digits. It contains an integer component that may be prefixed with an - > optional minus sign, which may be followed by a fraction part and/or an - > exponent part. Leading zeros are not allowed. (...) Numeric values that - > cannot be represented in the grammar below (such as Infinity and NaN) - > are not permitted. - - This description includes both integer and floating-point numbers. - However, C++ allows more precise storage if it is known whether the number - is a signed integer, an unsigned integer or a floating-point number. - Therefore, three different types, @ref number_integer_t, @ref - number_unsigned_t and @ref number_float_t are used. - - To store unsigned integer numbers in C++, a type is defined by the - template parameter @a NumberUnsignedType which chooses the type to use. - - #### Default type - - With the default values for @a NumberUnsignedType (`uint64_t`), the - default value for @a number_unsigned_t is: - - @code {.cpp} - uint64_t - @endcode - - #### Default behavior - - - The restrictions about leading zeros is not enforced in C++. Instead, - leading zeros in integer literals lead to an interpretation as octal - number. Internally, the value will be stored as decimal number. For - instance, the C++ integer literal `010` will be serialized to `8`. - During deserialization, leading zeros yield an error. - - Not-a-number (NaN) values will be serialized to `null`. - - #### Limits - - [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: - > An implementation may set limits on the range and precision of numbers. - - When the default type is used, the maximal integer number that can be - stored is `18446744073709551615` (UINT64_MAX) and the minimal integer - number that can be stored is `0`. Integer numbers that are out of range - will yield over/underflow when used in a constructor. During - deserialization, too large or small integer numbers will be automatically - be stored as @ref number_integer_t or @ref number_float_t. - - [RFC 8259](https://tools.ietf.org/html/rfc8259) further states: - > Note that when such software is used, numbers that are integers and are - > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense - > that implementations will agree exactly on their numeric values. - - As this range is a subrange (when considered in conjunction with the - number_integer_t type) of the exactly supported range [0, UINT64_MAX], - this class's integer type is interoperable. - - #### Storage - - Integer number values are stored directly inside a @ref basic_json type. - - @sa see @ref number_float_t -- type for number values (floating-point) - @sa see @ref number_integer_t -- type for number values (integer) - - @since version 2.0.0 - */ - using number_unsigned_t = NumberUnsignedType; - - /*! - @brief a type for a number (floating-point) - - [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows: - > The representation of numbers is similar to that used in most - > programming languages. A number is represented in base 10 using decimal - > digits. It contains an integer component that may be prefixed with an - > optional minus sign, which may be followed by a fraction part and/or an - > exponent part. Leading zeros are not allowed. (...) Numeric values that - > cannot be represented in the grammar below (such as Infinity and NaN) - > are not permitted. - - This description includes both integer and floating-point numbers. - However, C++ allows more precise storage if it is known whether the number - is a signed integer, an unsigned integer or a floating-point number. - Therefore, three different types, @ref number_integer_t, @ref - number_unsigned_t and @ref number_float_t are used. - - To store floating-point numbers in C++, a type is defined by the template - parameter @a NumberFloatType which chooses the type to use. - - #### Default type - - With the default values for @a NumberFloatType (`double`), the default - value for @a number_float_t is: - - @code {.cpp} - double - @endcode - - #### Default behavior - - - The restrictions about leading zeros is not enforced in C++. Instead, - leading zeros in floating-point literals will be ignored. Internally, - the value will be stored as decimal number. For instance, the C++ - floating-point literal `01.2` will be serialized to `1.2`. During - deserialization, leading zeros yield an error. - - Not-a-number (NaN) values will be serialized to `null`. - - #### Limits - - [RFC 8259](https://tools.ietf.org/html/rfc8259) states: - > This specification allows implementations to set limits on the range and - > precision of numbers accepted. Since software that implements IEEE - > 754-2008 binary64 (double precision) numbers is generally available and - > widely used, good interoperability can be achieved by implementations - > that expect no more precision or range than these provide, in the sense - > that implementations will approximate JSON numbers within the expected - > precision. - - This implementation does exactly follow this approach, as it uses double - precision floating-point numbers. Note values smaller than - `-1.79769313486232e+308` and values greater than `1.79769313486232e+308` - will be stored as NaN internally and be serialized to `null`. - - #### Storage - - Floating-point number values are stored directly inside a @ref basic_json - type. - - @sa see @ref number_integer_t -- type for number values (integer) - - @sa see @ref number_unsigned_t -- type for number values (unsigned integer) - - @since version 1.0.0 - */ - using number_float_t = NumberFloatType; - - /*! - @brief a type for a packed binary type - - This type is a type designed to carry binary data that appears in various - serialized formats, such as CBOR's Major Type 2, MessagePack's bin, and - BSON's generic binary subtype. This type is NOT a part of standard JSON and - exists solely for compatibility with these binary types. As such, it is - simply defined as an ordered sequence of zero or more byte values. - - Additionally, as an implementation detail, the subtype of the binary data is - carried around as a `std::uint8_t`, which is compatible with both of the - binary data formats that use binary subtyping, (though the specific - numbering is incompatible with each other, and it is up to the user to - translate between them). - - [CBOR's RFC 7049](https://tools.ietf.org/html/rfc7049) describes this type - as: - > Major type 2: a byte string. The string's length in bytes is represented - > following the rules for positive integers (major type 0). - - [MessagePack's documentation on the bin type - family](https://github.com/msgpack/msgpack/blob/master/spec.md#bin-format-family) - describes this type as: - > Bin format family stores an byte array in 2, 3, or 5 bytes of extra bytes - > in addition to the size of the byte array. - - [BSON's specifications](http://bsonspec.org/spec.html) describe several - binary types; however, this type is intended to represent the generic binary - type which has the description: - > Generic binary subtype - This is the most commonly used binary subtype and - > should be the 'default' for drivers and tools. - - None of these impose any limitations on the internal representation other - than the basic unit of storage be some type of array whose parts are - decomposable into bytes. - - The default representation of this binary format is a - `std::vector`, which is a very common way to represent a byte - array in modern C++. - - #### Default type - - The default values for @a BinaryType is `std::vector` - - #### Storage - - Binary Arrays are stored as pointers in a @ref basic_json type. That is, - for any access to array values, a pointer of the type `binary_t*` must be - dereferenced. - - #### Notes on subtypes - - - CBOR - - Binary values are represented as byte strings. Subtypes are serialized - as tagged values. - - MessagePack - - If a subtype is given and the binary array contains exactly 1, 2, 4, 8, - or 16 elements, the fixext family (fixext1, fixext2, fixext4, fixext8) - is used. For other sizes, the ext family (ext8, ext16, ext32) is used. - The subtype is then added as singed 8-bit integer. - - If no subtype is given, the bin family (bin8, bin16, bin32) is used. - - BSON - - If a subtype is given, it is used and added as unsigned 8-bit integer. - - If no subtype is given, the generic binary subtype 0x00 is used. - - @sa see @ref binary -- create a binary array - - @since version 3.8.0 - */ - using binary_t = nlohmann::byte_container_with_subtype; - /// @} - - private: - - /// helper for exception-safe object creation - template - JSON_HEDLEY_RETURNS_NON_NULL - static T* create(Args&& ... args) - { - AllocatorType alloc; - using AllocatorTraits = std::allocator_traits>; - - auto deleter = [&](T * obj) - { - AllocatorTraits::deallocate(alloc, obj, 1); - }; - std::unique_ptr obj(AllocatorTraits::allocate(alloc, 1), deleter); - AllocatorTraits::construct(alloc, obj.get(), std::forward(args)...); - JSON_ASSERT(obj != nullptr); - return obj.release(); - } - - //////////////////////// - // JSON value storage // - //////////////////////// - - JSON_PRIVATE_UNLESS_TESTED: - /*! - @brief a JSON value - - The actual storage for a JSON value of the @ref basic_json class. This - union combines the different storage types for the JSON value types - defined in @ref value_t. - - JSON type | value_t type | used type - --------- | --------------- | ------------------------ - object | object | pointer to @ref object_t - array | array | pointer to @ref array_t - string | string | pointer to @ref string_t - boolean | boolean | @ref boolean_t - number | number_integer | @ref number_integer_t - number | number_unsigned | @ref number_unsigned_t - number | number_float | @ref number_float_t - binary | binary | pointer to @ref binary_t - null | null | *no value is stored* - - @note Variable-length types (objects, arrays, and strings) are stored as - pointers. The size of the union should not exceed 64 bits if the default - value types are used. - - @since version 1.0.0 - */ - union json_value - { - /// object (stored with pointer to save storage) - object_t* object; - /// array (stored with pointer to save storage) - array_t* array; - /// string (stored with pointer to save storage) - string_t* string; - /// binary (stored with pointer to save storage) - binary_t* binary; - /// boolean - boolean_t boolean; - /// number (integer) - number_integer_t number_integer; - /// number (unsigned integer) - number_unsigned_t number_unsigned; - /// number (floating-point) - number_float_t number_float; - - /// default constructor (for null values) - json_value() = default; - /// constructor for booleans - json_value(boolean_t v) noexcept : boolean(v) {} - /// constructor for numbers (integer) - json_value(number_integer_t v) noexcept : number_integer(v) {} - /// constructor for numbers (unsigned) - json_value(number_unsigned_t v) noexcept : number_unsigned(v) {} - /// constructor for numbers (floating-point) - json_value(number_float_t v) noexcept : number_float(v) {} - /// constructor for empty values of a given type - json_value(value_t t) - { - switch (t) - { - case value_t::object: - { - object = create(); - break; - } - - case value_t::array: - { - array = create(); - break; - } - - case value_t::string: - { - string = create(""); - break; - } - - case value_t::binary: - { - binary = create(); - break; - } - - case value_t::boolean: - { - boolean = boolean_t(false); - break; - } - - case value_t::number_integer: - { - number_integer = number_integer_t(0); - break; - } - - case value_t::number_unsigned: - { - number_unsigned = number_unsigned_t(0); - break; - } - - case value_t::number_float: - { - number_float = number_float_t(0.0); - break; - } - - case value_t::null: - { - object = nullptr; // silence warning, see #821 - break; - } - - case value_t::discarded: - default: - { - object = nullptr; // silence warning, see #821 - if (JSON_HEDLEY_UNLIKELY(t == value_t::null)) - { - JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.10.0", basic_json())); // LCOV_EXCL_LINE - } - break; - } - } - } - - /// constructor for strings - json_value(const string_t& value) - { - string = create(value); - } - - /// constructor for rvalue strings - json_value(string_t&& value) - { - string = create(std::move(value)); - } - - /// constructor for objects - json_value(const object_t& value) - { - object = create(value); - } - - /// constructor for rvalue objects - json_value(object_t&& value) - { - object = create(std::move(value)); - } - - /// constructor for arrays - json_value(const array_t& value) - { - array = create(value); - } - - /// constructor for rvalue arrays - json_value(array_t&& value) - { - array = create(std::move(value)); - } - - /// constructor for binary arrays - json_value(const typename binary_t::container_type& value) - { - binary = create(value); - } - - /// constructor for rvalue binary arrays - json_value(typename binary_t::container_type&& value) - { - binary = create(std::move(value)); - } - - /// constructor for binary arrays (internal type) - json_value(const binary_t& value) - { - binary = create(value); - } - - /// constructor for rvalue binary arrays (internal type) - json_value(binary_t&& value) - { - binary = create(std::move(value)); - } - - void destroy(value_t t) - { - if (t == value_t::array || t == value_t::object) - { - // flatten the current json_value to a heap-allocated stack - std::vector stack; - - // move the top-level items to stack - if (t == value_t::array) - { - stack.reserve(array->size()); - std::move(array->begin(), array->end(), std::back_inserter(stack)); - } - else - { - stack.reserve(object->size()); - for (auto&& it : *object) - { - stack.push_back(std::move(it.second)); - } - } - - while (!stack.empty()) - { - // move the last item to local variable to be processed - basic_json current_item(std::move(stack.back())); - stack.pop_back(); - - // if current_item is array/object, move - // its children to the stack to be processed later - if (current_item.is_array()) - { - std::move(current_item.m_value.array->begin(), current_item.m_value.array->end(), std::back_inserter(stack)); - - current_item.m_value.array->clear(); - } - else if (current_item.is_object()) - { - for (auto&& it : *current_item.m_value.object) - { - stack.push_back(std::move(it.second)); - } - - current_item.m_value.object->clear(); - } - - // it's now safe that current_item get destructed - // since it doesn't have any children - } - } - - switch (t) - { - case value_t::object: - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, object); - std::allocator_traits::deallocate(alloc, object, 1); - break; - } - - case value_t::array: - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, array); - std::allocator_traits::deallocate(alloc, array, 1); - break; - } - - case value_t::string: - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, string); - std::allocator_traits::deallocate(alloc, string, 1); - break; - } - - case value_t::binary: - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, binary); - std::allocator_traits::deallocate(alloc, binary, 1); - break; - } - - case value_t::null: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::discarded: - default: - { - break; - } - } - } - }; - - private: - /*! - @brief checks the class invariants - - This function asserts the class invariants. It needs to be called at the - end of every constructor to make sure that created objects respect the - invariant. Furthermore, it has to be called each time the type of a JSON - value is changed, because the invariant expresses a relationship between - @a m_type and @a m_value. - - Furthermore, the parent relation is checked for arrays and objects: If - @a check_parents true and the value is an array or object, then the - container's elements must have the current value as parent. - - @param[in] check_parents whether the parent relation should be checked. - The value is true by default and should only be set to false - during destruction of objects when the invariant does not - need to hold. - */ - void assert_invariant(bool check_parents = true) const noexcept - { - JSON_ASSERT(m_type != value_t::object || m_value.object != nullptr); - JSON_ASSERT(m_type != value_t::array || m_value.array != nullptr); - JSON_ASSERT(m_type != value_t::string || m_value.string != nullptr); - JSON_ASSERT(m_type != value_t::binary || m_value.binary != nullptr); - -#if JSON_DIAGNOSTICS - JSON_TRY - { - // cppcheck-suppress assertWithSideEffect - JSON_ASSERT(!check_parents || !is_structured() || std::all_of(begin(), end(), [this](const basic_json & j) - { - return j.m_parent == this; - })); - } - JSON_CATCH(...) {} // LCOV_EXCL_LINE -#endif - static_cast(check_parents); - } - - void set_parents() - { -#if JSON_DIAGNOSTICS - switch (m_type) - { - case value_t::array: - { - for (auto& element : *m_value.array) - { - element.m_parent = this; - } - break; - } - - case value_t::object: - { - for (auto& element : *m_value.object) - { - element.second.m_parent = this; - } - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - break; - } -#endif - } - - iterator set_parents(iterator it, typename iterator::difference_type count) - { -#if JSON_DIAGNOSTICS - for (typename iterator::difference_type i = 0; i < count; ++i) - { - (it + i)->m_parent = this; - } -#else - static_cast(count); -#endif - return it; - } - - reference set_parent(reference j, std::size_t old_capacity = std::size_t(-1)) - { -#if JSON_DIAGNOSTICS - if (old_capacity != std::size_t(-1)) - { - // see https://github.com/nlohmann/json/issues/2838 - JSON_ASSERT(type() == value_t::array); - if (JSON_HEDLEY_UNLIKELY(m_value.array->capacity() != old_capacity)) - { - // capacity has changed: update all parents - set_parents(); - return j; - } - } - - j.m_parent = this; -#else - static_cast(j); - static_cast(old_capacity); -#endif - return j; - } - - public: - ////////////////////////// - // JSON parser callback // - ////////////////////////// - - /*! - @brief parser event types - - The parser callback distinguishes the following events: - - `object_start`: the parser read `{` and started to process a JSON object - - `key`: the parser read a key of a value in an object - - `object_end`: the parser read `}` and finished processing a JSON object - - `array_start`: the parser read `[` and started to process a JSON array - - `array_end`: the parser read `]` and finished processing a JSON array - - `value`: the parser finished reading a JSON value - - @image html callback_events.png "Example when certain parse events are triggered" - - @sa see @ref parser_callback_t for more information and examples - */ - using parse_event_t = detail::parse_event_t; - - /*! - @brief per-element parser callback type - - With a parser callback function, the result of parsing a JSON text can be - influenced. When passed to @ref parse, it is called on certain events - (passed as @ref parse_event_t via parameter @a event) with a set recursion - depth @a depth and context JSON value @a parsed. The return value of the - callback function is a boolean indicating whether the element that emitted - the callback shall be kept or not. - - We distinguish six scenarios (determined by the event type) in which the - callback function can be called. The following table describes the values - of the parameters @a depth, @a event, and @a parsed. - - parameter @a event | description | parameter @a depth | parameter @a parsed - ------------------ | ----------- | ------------------ | ------------------- - parse_event_t::object_start | the parser read `{` and started to process a JSON object | depth of the parent of the JSON object | a JSON value with type discarded - parse_event_t::key | the parser read a key of a value in an object | depth of the currently parsed JSON object | a JSON string containing the key - parse_event_t::object_end | the parser read `}` and finished processing a JSON object | depth of the parent of the JSON object | the parsed JSON object - parse_event_t::array_start | the parser read `[` and started to process a JSON array | depth of the parent of the JSON array | a JSON value with type discarded - parse_event_t::array_end | the parser read `]` and finished processing a JSON array | depth of the parent of the JSON array | the parsed JSON array - parse_event_t::value | the parser finished reading a JSON value | depth of the value | the parsed JSON value - - @image html callback_events.png "Example when certain parse events are triggered" - - Discarding a value (i.e., returning `false`) has different effects - depending on the context in which function was called: - - - Discarded values in structured types are skipped. That is, the parser - will behave as if the discarded value was never read. - - In case a value outside a structured type is skipped, it is replaced - with `null`. This case happens if the top-level element is skipped. - - @param[in] depth the depth of the recursion during parsing - - @param[in] event an event of type parse_event_t indicating the context in - the callback function has been called - - @param[in,out] parsed the current intermediate parse result; note that - writing to this value has no effect for parse_event_t::key events - - @return Whether the JSON value which called the function during parsing - should be kept (`true`) or not (`false`). In the latter case, it is either - skipped completely or replaced by an empty discarded object. - - @sa see @ref parse for examples - - @since version 1.0.0 - */ - using parser_callback_t = detail::parser_callback_t; - - ////////////////// - // constructors // - ////////////////// - - /// @name constructors and destructors - /// Constructors of class @ref basic_json, copy/move constructor, copy - /// assignment, static functions creating objects, and the destructor. - /// @{ - - /*! - @brief create an empty value with a given type - - Create an empty JSON value with a given type. The value will be default - initialized with an empty value which depends on the type: - - Value type | initial value - ----------- | ------------- - null | `null` - boolean | `false` - string | `""` - number | `0` - object | `{}` - array | `[]` - binary | empty array - - @param[in] v the type of the value to create - - @complexity Constant. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @liveexample{The following code shows the constructor for different @ref - value_t values,basic_json__value_t} - - @sa see @ref clear() -- restores the postcondition of this constructor - - @since version 1.0.0 - */ - basic_json(const value_t v) - : m_type(v), m_value(v) - { - assert_invariant(); - } - - /*! - @brief create a null object - - Create a `null` JSON value. It either takes a null pointer as parameter - (explicitly creating `null`) or no parameter (implicitly creating `null`). - The passed null pointer itself is not read -- it is only used to choose - the right constructor. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this constructor never throws - exceptions. - - @liveexample{The following code shows the constructor with and without a - null pointer parameter.,basic_json__nullptr_t} - - @since version 1.0.0 - */ - basic_json(std::nullptr_t = nullptr) noexcept - : basic_json(value_t::null) - { - assert_invariant(); - } - - /*! - @brief create a JSON value - - This is a "catch all" constructor for all compatible JSON types; that is, - types for which a `to_json()` method exists. The constructor forwards the - parameter @a val to that method (to `json_serializer::to_json` method - with `U = uncvref_t`, to be exact). - - Template type @a CompatibleType includes, but is not limited to, the - following types: - - **arrays**: @ref array_t and all kinds of compatible containers such as - `std::vector`, `std::deque`, `std::list`, `std::forward_list`, - `std::array`, `std::valarray`, `std::set`, `std::unordered_set`, - `std::multiset`, and `std::unordered_multiset` with a `value_type` from - which a @ref basic_json value can be constructed. - - **objects**: @ref object_t and all kinds of compatible associative - containers such as `std::map`, `std::unordered_map`, `std::multimap`, - and `std::unordered_multimap` with a `key_type` compatible to - @ref string_t and a `value_type` from which a @ref basic_json value can - be constructed. - - **strings**: @ref string_t, string literals, and all compatible string - containers can be used. - - **numbers**: @ref number_integer_t, @ref number_unsigned_t, - @ref number_float_t, and all convertible number types such as `int`, - `size_t`, `int64_t`, `float` or `double` can be used. - - **boolean**: @ref boolean_t / `bool` can be used. - - **binary**: @ref binary_t / `std::vector` may be used, - unfortunately because string literals cannot be distinguished from binary - character arrays by the C++ type system, all types compatible with `const - char*` will be directed to the string constructor instead. This is both - for backwards compatibility, and due to the fact that a binary type is not - a standard JSON type. - - See the examples below. - - @tparam CompatibleType a type such that: - - @a CompatibleType is not derived from `std::istream`, - - @a CompatibleType is not @ref basic_json (to avoid hijacking copy/move - constructors), - - @a CompatibleType is not a different @ref basic_json type (i.e. with different template arguments) - - @a CompatibleType is not a @ref basic_json nested type (e.g., - @ref json_pointer, @ref iterator, etc ...) - - `json_serializer` has a `to_json(basic_json_t&, CompatibleType&&)` method - - @tparam U = `uncvref_t` - - @param[in] val the value to be forwarded to the respective constructor - - @complexity Usually linear in the size of the passed @a val, also - depending on the implementation of the called `to_json()` - method. - - @exceptionsafety Depends on the called constructor. For types directly - supported by the library (i.e., all types for which no `to_json()` function - was provided), strong guarantee holds: if an exception is thrown, there are - no changes to any JSON value. - - @liveexample{The following code shows the constructor with several - compatible types.,basic_json__CompatibleType} - - @since version 2.1.0 - */ - template < typename CompatibleType, - typename U = detail::uncvref_t, - detail::enable_if_t < - !detail::is_basic_json::value && detail::is_compatible_type::value, int > = 0 > - basic_json(CompatibleType && val) noexcept(noexcept( // NOLINT(bugprone-forwarding-reference-overload,bugprone-exception-escape) - JSONSerializer::to_json(std::declval(), - std::forward(val)))) - { - JSONSerializer::to_json(*this, std::forward(val)); - set_parents(); - assert_invariant(); - } - - /*! - @brief create a JSON value from an existing one - - This is a constructor for existing @ref basic_json types. - It does not hijack copy/move constructors, since the parameter has different - template arguments than the current ones. - - The constructor tries to convert the internal @ref m_value of the parameter. - - @tparam BasicJsonType a type such that: - - @a BasicJsonType is a @ref basic_json type. - - @a BasicJsonType has different template arguments than @ref basic_json_t. - - @param[in] val the @ref basic_json value to be converted. - - @complexity Usually linear in the size of the passed @a val, also - depending on the implementation of the called `to_json()` - method. - - @exceptionsafety Depends on the called constructor. For types directly - supported by the library (i.e., all types for which no `to_json()` function - was provided), strong guarantee holds: if an exception is thrown, there are - no changes to any JSON value. - - @since version 3.2.0 - */ - template < typename BasicJsonType, - detail::enable_if_t < - detail::is_basic_json::value&& !std::is_same::value, int > = 0 > - basic_json(const BasicJsonType& val) - { - using other_boolean_t = typename BasicJsonType::boolean_t; - using other_number_float_t = typename BasicJsonType::number_float_t; - using other_number_integer_t = typename BasicJsonType::number_integer_t; - using other_number_unsigned_t = typename BasicJsonType::number_unsigned_t; - using other_string_t = typename BasicJsonType::string_t; - using other_object_t = typename BasicJsonType::object_t; - using other_array_t = typename BasicJsonType::array_t; - using other_binary_t = typename BasicJsonType::binary_t; - - switch (val.type()) - { - case value_t::boolean: - JSONSerializer::to_json(*this, val.template get()); - break; - case value_t::number_float: - JSONSerializer::to_json(*this, val.template get()); - break; - case value_t::number_integer: - JSONSerializer::to_json(*this, val.template get()); - break; - case value_t::number_unsigned: - JSONSerializer::to_json(*this, val.template get()); - break; - case value_t::string: - JSONSerializer::to_json(*this, val.template get_ref()); - break; - case value_t::object: - JSONSerializer::to_json(*this, val.template get_ref()); - break; - case value_t::array: - JSONSerializer::to_json(*this, val.template get_ref()); - break; - case value_t::binary: - JSONSerializer::to_json(*this, val.template get_ref()); - break; - case value_t::null: - *this = nullptr; - break; - case value_t::discarded: - m_type = value_t::discarded; - break; - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - set_parents(); - assert_invariant(); - } - - /*! - @brief create a container (array or object) from an initializer list - - Creates a JSON value of type array or object from the passed initializer - list @a init. In case @a type_deduction is `true` (default), the type of - the JSON value to be created is deducted from the initializer list @a init - according to the following rules: - - 1. If the list is empty, an empty JSON object value `{}` is created. - 2. If the list consists of pairs whose first element is a string, a JSON - object value is created where the first elements of the pairs are - treated as keys and the second elements are as values. - 3. In all other cases, an array is created. - - The rules aim to create the best fit between a C++ initializer list and - JSON values. The rationale is as follows: - - 1. The empty initializer list is written as `{}` which is exactly an empty - JSON object. - 2. C++ has no way of describing mapped types other than to list a list of - pairs. As JSON requires that keys must be of type string, rule 2 is the - weakest constraint one can pose on initializer lists to interpret them - as an object. - 3. In all other cases, the initializer list could not be interpreted as - JSON object type, so interpreting it as JSON array type is safe. - - With the rules described above, the following JSON values cannot be - expressed by an initializer list: - - - the empty array (`[]`): use @ref array(initializer_list_t) - with an empty initializer list in this case - - arrays whose elements satisfy rule 2: use @ref - array(initializer_list_t) with the same initializer list - in this case - - @note When used without parentheses around an empty initializer list, @ref - basic_json() is called instead of this function, yielding the JSON null - value. - - @param[in] init initializer list with JSON values - - @param[in] type_deduction internal parameter; when set to `true`, the type - of the JSON value is deducted from the initializer list @a init; when set - to `false`, the type provided via @a manual_type is forced. This mode is - used by the functions @ref array(initializer_list_t) and - @ref object(initializer_list_t). - - @param[in] manual_type internal parameter; when @a type_deduction is set - to `false`, the created JSON value will use the provided type (only @ref - value_t::array and @ref value_t::object are valid); when @a type_deduction - is set to `true`, this parameter has no effect - - @throw type_error.301 if @a type_deduction is `false`, @a manual_type is - `value_t::object`, but @a init contains an element which is not a pair - whose first element is a string. In this case, the constructor could not - create an object. If @a type_deduction would have be `true`, an array - would have been created. See @ref object(initializer_list_t) - for an example. - - @complexity Linear in the size of the initializer list @a init. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @liveexample{The example below shows how JSON values are created from - initializer lists.,basic_json__list_init_t} - - @sa see @ref array(initializer_list_t) -- create a JSON array - value from an initializer list - @sa see @ref object(initializer_list_t) -- create a JSON object - value from an initializer list - - @since version 1.0.0 - */ - basic_json(initializer_list_t init, - bool type_deduction = true, - value_t manual_type = value_t::array) - { - // check if each element is an array with two elements whose first - // element is a string - bool is_an_object = std::all_of(init.begin(), init.end(), - [](const detail::json_ref& element_ref) - { - return element_ref->is_array() && element_ref->size() == 2 && (*element_ref)[0].is_string(); - }); - - // adjust type if type deduction is not wanted - if (!type_deduction) - { - // if array is wanted, do not create an object though possible - if (manual_type == value_t::array) - { - is_an_object = false; - } - - // if object is wanted but impossible, throw an exception - if (JSON_HEDLEY_UNLIKELY(manual_type == value_t::object && !is_an_object)) - { - JSON_THROW(type_error::create(301, "cannot create object from initializer list", basic_json())); - } - } - - if (is_an_object) - { - // the initializer list is a list of pairs -> create object - m_type = value_t::object; - m_value = value_t::object; - - for (auto& element_ref : init) - { - auto element = element_ref.moved_or_copied(); - m_value.object->emplace( - std::move(*((*element.m_value.array)[0].m_value.string)), - std::move((*element.m_value.array)[1])); - } - } - else - { - // the initializer list describes an array -> create array - m_type = value_t::array; - m_value.array = create(init.begin(), init.end()); - } - - set_parents(); - assert_invariant(); - } - - /*! - @brief explicitly create a binary array (without subtype) - - Creates a JSON binary array value from a given binary container. Binary - values are part of various binary formats, such as CBOR, MessagePack, and - BSON. This constructor is used to create a value for serialization to those - formats. - - @note Note, this function exists because of the difficulty in correctly - specifying the correct template overload in the standard value ctor, as both - JSON arrays and JSON binary arrays are backed with some form of a - `std::vector`. Because JSON binary arrays are a non-standard extension it - was decided that it would be best to prevent automatic initialization of a - binary array type, for backwards compatibility and so it does not happen on - accident. - - @param[in] init container containing bytes to use as binary type - - @return JSON binary array value - - @complexity Linear in the size of @a init. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @since version 3.8.0 - */ - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json binary(const typename binary_t::container_type& init) - { - auto res = basic_json(); - res.m_type = value_t::binary; - res.m_value = init; - return res; - } - - /*! - @brief explicitly create a binary array (with subtype) - - Creates a JSON binary array value from a given binary container. Binary - values are part of various binary formats, such as CBOR, MessagePack, and - BSON. This constructor is used to create a value for serialization to those - formats. - - @note Note, this function exists because of the difficulty in correctly - specifying the correct template overload in the standard value ctor, as both - JSON arrays and JSON binary arrays are backed with some form of a - `std::vector`. Because JSON binary arrays are a non-standard extension it - was decided that it would be best to prevent automatic initialization of a - binary array type, for backwards compatibility and so it does not happen on - accident. - - @param[in] init container containing bytes to use as binary type - @param[in] subtype subtype to use in MessagePack and BSON - - @return JSON binary array value - - @complexity Linear in the size of @a init. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @since version 3.8.0 - */ - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json binary(const typename binary_t::container_type& init, typename binary_t::subtype_type subtype) - { - auto res = basic_json(); - res.m_type = value_t::binary; - res.m_value = binary_t(init, subtype); - return res; - } - - /// @copydoc binary(const typename binary_t::container_type&) - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json binary(typename binary_t::container_type&& init) - { - auto res = basic_json(); - res.m_type = value_t::binary; - res.m_value = std::move(init); - return res; - } - - /// @copydoc binary(const typename binary_t::container_type&, typename binary_t::subtype_type) - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json binary(typename binary_t::container_type&& init, typename binary_t::subtype_type subtype) - { - auto res = basic_json(); - res.m_type = value_t::binary; - res.m_value = binary_t(std::move(init), subtype); - return res; - } - - /*! - @brief explicitly create an array from an initializer list - - Creates a JSON array value from a given initializer list. That is, given a - list of values `a, b, c`, creates the JSON value `[a, b, c]`. If the - initializer list is empty, the empty array `[]` is created. - - @note This function is only needed to express two edge cases that cannot - be realized with the initializer list constructor (@ref - basic_json(initializer_list_t, bool, value_t)). These cases - are: - 1. creating an array whose elements are all pairs whose first element is a - string -- in this case, the initializer list constructor would create an - object, taking the first elements as keys - 2. creating an empty array -- passing the empty initializer list to the - initializer list constructor yields an empty object - - @param[in] init initializer list with JSON values to create an array from - (optional) - - @return JSON array value - - @complexity Linear in the size of @a init. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @liveexample{The following code shows an example for the `array` - function.,array} - - @sa see @ref basic_json(initializer_list_t, bool, value_t) -- - create a JSON value from an initializer list - @sa see @ref object(initializer_list_t) -- create a JSON object - value from an initializer list - - @since version 1.0.0 - */ - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json array(initializer_list_t init = {}) - { - return basic_json(init, false, value_t::array); - } - - /*! - @brief explicitly create an object from an initializer list - - Creates a JSON object value from a given initializer list. The initializer - lists elements must be pairs, and their first elements must be strings. If - the initializer list is empty, the empty object `{}` is created. - - @note This function is only added for symmetry reasons. In contrast to the - related function @ref array(initializer_list_t), there are - no cases which can only be expressed by this function. That is, any - initializer list @a init can also be passed to the initializer list - constructor @ref basic_json(initializer_list_t, bool, value_t). - - @param[in] init initializer list to create an object from (optional) - - @return JSON object value - - @throw type_error.301 if @a init is not a list of pairs whose first - elements are strings. In this case, no object can be created. When such a - value is passed to @ref basic_json(initializer_list_t, bool, value_t), - an array would have been created from the passed initializer list @a init. - See example below. - - @complexity Linear in the size of @a init. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @liveexample{The following code shows an example for the `object` - function.,object} - - @sa see @ref basic_json(initializer_list_t, bool, value_t) -- - create a JSON value from an initializer list - @sa see @ref array(initializer_list_t) -- create a JSON array - value from an initializer list - - @since version 1.0.0 - */ - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json object(initializer_list_t init = {}) - { - return basic_json(init, false, value_t::object); - } - - /*! - @brief construct an array with count copies of given value - - Constructs a JSON array value by creating @a cnt copies of a passed value. - In case @a cnt is `0`, an empty array is created. - - @param[in] cnt the number of JSON copies of @a val to create - @param[in] val the JSON value to copy - - @post `std::distance(begin(),end()) == cnt` holds. - - @complexity Linear in @a cnt. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @liveexample{The following code shows examples for the @ref - basic_json(size_type\, const basic_json&) - constructor.,basic_json__size_type_basic_json} - - @since version 1.0.0 - */ - basic_json(size_type cnt, const basic_json& val) - : m_type(value_t::array) - { - m_value.array = create(cnt, val); - set_parents(); - assert_invariant(); - } - - /*! - @brief construct a JSON container given an iterator range - - Constructs the JSON value with the contents of the range `[first, last)`. - The semantics depends on the different types a JSON value can have: - - In case of a null type, invalid_iterator.206 is thrown. - - In case of other primitive types (number, boolean, or string), @a first - must be `begin()` and @a last must be `end()`. In this case, the value is - copied. Otherwise, invalid_iterator.204 is thrown. - - In case of structured types (array, object), the constructor behaves as - similar versions for `std::vector` or `std::map`; that is, a JSON array - or object is constructed from the values in the range. - - @tparam InputIT an input iterator type (@ref iterator or @ref - const_iterator) - - @param[in] first begin of the range to copy from (included) - @param[in] last end of the range to copy from (excluded) - - @pre Iterators @a first and @a last must be initialized. **This - precondition is enforced with an assertion (see warning).** If - assertions are switched off, a violation of this precondition yields - undefined behavior. - - @pre Range `[first, last)` is valid. Usually, this precondition cannot be - checked efficiently. Only certain edge cases are detected; see the - description of the exceptions below. A violation of this precondition - yields undefined behavior. - - @warning A precondition is enforced with a runtime assertion that will - result in calling `std::abort` if this precondition is not met. - Assertions can be disabled by defining `NDEBUG` at compile time. - See https://en.cppreference.com/w/cpp/error/assert for more - information. - - @throw invalid_iterator.201 if iterators @a first and @a last are not - compatible (i.e., do not belong to the same JSON value). In this case, - the range `[first, last)` is undefined. - @throw invalid_iterator.204 if iterators @a first and @a last belong to a - primitive type (number, boolean, or string), but @a first does not point - to the first element any more. In this case, the range `[first, last)` is - undefined. See example code below. - @throw invalid_iterator.206 if iterators @a first and @a last belong to a - null value. In this case, the range `[first, last)` is undefined. - - @complexity Linear in distance between @a first and @a last. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @liveexample{The example below shows several ways to create JSON values by - specifying a subrange with iterators.,basic_json__InputIt_InputIt} - - @since version 1.0.0 - */ - template < class InputIT, typename std::enable_if < - std::is_same::value || - std::is_same::value, int >::type = 0 > - basic_json(InputIT first, InputIT last) - { - JSON_ASSERT(first.m_object != nullptr); - JSON_ASSERT(last.m_object != nullptr); - - // make sure iterator fits the current value - if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) - { - JSON_THROW(invalid_iterator::create(201, "iterators are not compatible", basic_json())); - } - - // copy type from first iterator - m_type = first.m_object->m_type; - - // check if iterator range is complete for primitive values - switch (m_type) - { - case value_t::boolean: - case value_t::number_float: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::string: - { - if (JSON_HEDLEY_UNLIKELY(!first.m_it.primitive_iterator.is_begin() - || !last.m_it.primitive_iterator.is_end())) - { - JSON_THROW(invalid_iterator::create(204, "iterators out of range", *first.m_object)); - } - break; - } - - case value_t::null: - case value_t::object: - case value_t::array: - case value_t::binary: - case value_t::discarded: - default: - break; - } - - switch (m_type) - { - case value_t::number_integer: - { - m_value.number_integer = first.m_object->m_value.number_integer; - break; - } - - case value_t::number_unsigned: - { - m_value.number_unsigned = first.m_object->m_value.number_unsigned; - break; - } - - case value_t::number_float: - { - m_value.number_float = first.m_object->m_value.number_float; - break; - } - - case value_t::boolean: - { - m_value.boolean = first.m_object->m_value.boolean; - break; - } - - case value_t::string: - { - m_value = *first.m_object->m_value.string; - break; - } - - case value_t::object: - { - m_value.object = create(first.m_it.object_iterator, - last.m_it.object_iterator); - break; - } - - case value_t::array: - { - m_value.array = create(first.m_it.array_iterator, - last.m_it.array_iterator); - break; - } - - case value_t::binary: - { - m_value = *first.m_object->m_value.binary; - break; - } - - case value_t::null: - case value_t::discarded: - default: - JSON_THROW(invalid_iterator::create(206, "cannot construct with iterators from " + std::string(first.m_object->type_name()), *first.m_object)); - } - - set_parents(); - assert_invariant(); - } - - - /////////////////////////////////////// - // other constructors and destructor // - /////////////////////////////////////// - - template, - std::is_same>::value, int> = 0 > - basic_json(const JsonRef& ref) : basic_json(ref.moved_or_copied()) {} - - /*! - @brief copy constructor - - Creates a copy of a given JSON value. - - @param[in] other the JSON value to copy - - @post `*this == other` - - @complexity Linear in the size of @a other. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes to any JSON value. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is linear. - - As postcondition, it holds: `other == basic_json(other)`. - - @liveexample{The following code shows an example for the copy - constructor.,basic_json__basic_json} - - @since version 1.0.0 - */ - basic_json(const basic_json& other) - : m_type(other.m_type) - { - // check of passed value is valid - other.assert_invariant(); - - switch (m_type) - { - case value_t::object: - { - m_value = *other.m_value.object; - break; - } - - case value_t::array: - { - m_value = *other.m_value.array; - break; - } - - case value_t::string: - { - m_value = *other.m_value.string; - break; - } - - case value_t::boolean: - { - m_value = other.m_value.boolean; - break; - } - - case value_t::number_integer: - { - m_value = other.m_value.number_integer; - break; - } - - case value_t::number_unsigned: - { - m_value = other.m_value.number_unsigned; - break; - } - - case value_t::number_float: - { - m_value = other.m_value.number_float; - break; - } - - case value_t::binary: - { - m_value = *other.m_value.binary; - break; - } - - case value_t::null: - case value_t::discarded: - default: - break; - } - - set_parents(); - assert_invariant(); - } - - /*! - @brief move constructor - - Move constructor. Constructs a JSON value with the contents of the given - value @a other using move semantics. It "steals" the resources from @a - other and leaves it as JSON null value. - - @param[in,out] other value to move to this object - - @post `*this` has the same value as @a other before the call. - @post @a other is a JSON null value. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this constructor never throws - exceptions. - - @requirement This function helps `basic_json` satisfying the - [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible) - requirements. - - @liveexample{The code below shows the move constructor explicitly called - via std::move.,basic_json__moveconstructor} - - @since version 1.0.0 - */ - basic_json(basic_json&& other) noexcept - : m_type(std::move(other.m_type)), - m_value(std::move(other.m_value)) - { - // check that passed value is valid - other.assert_invariant(false); - - // invalidate payload - other.m_type = value_t::null; - other.m_value = {}; - - set_parents(); - assert_invariant(); - } - - /*! - @brief copy assignment - - Copy assignment operator. Copies a JSON value via the "copy and swap" - strategy: It is expressed in terms of the copy constructor, destructor, - and the `swap()` member function. - - @param[in] other value to copy from - - @complexity Linear. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is linear. - - @liveexample{The code below shows and example for the copy assignment. It - creates a copy of value `a` which is then swapped with `b`. Finally\, the - copy of `a` (which is the null value after the swap) is - destroyed.,basic_json__copyassignment} - - @since version 1.0.0 - */ - basic_json& operator=(basic_json other) noexcept ( - std::is_nothrow_move_constructible::value&& - std::is_nothrow_move_assignable::value&& - std::is_nothrow_move_constructible::value&& - std::is_nothrow_move_assignable::value - ) - { - // check that passed value is valid - other.assert_invariant(); - - using std::swap; - swap(m_type, other.m_type); - swap(m_value, other.m_value); - - set_parents(); - assert_invariant(); - return *this; - } - - /*! - @brief destructor - - Destroys the JSON value and frees all allocated memory. - - @complexity Linear. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is linear. - - All stored elements are destroyed and all memory is freed. - - @since version 1.0.0 - */ - ~basic_json() noexcept - { - assert_invariant(false); - m_value.destroy(m_type); - } - - /// @} - - public: - /////////////////////// - // object inspection // - /////////////////////// - - /// @name object inspection - /// Functions to inspect the type of a JSON value. - /// @{ - - /*! - @brief serialization - - Serialization function for JSON values. The function tries to mimic - Python's `json.dumps()` function, and currently supports its @a indent - and @a ensure_ascii parameters. - - @param[in] indent If indent is nonnegative, then array elements and object - members will be pretty-printed with that indent level. An indent level of - `0` will only insert newlines. `-1` (the default) selects the most compact - representation. - @param[in] indent_char The character to use for indentation if @a indent is - greater than `0`. The default is ` ` (space). - @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters - in the output are escaped with `\uXXXX` sequences, and the result consists - of ASCII characters only. - @param[in] error_handler how to react on decoding errors; there are three - possible values: `strict` (throws and exception in case a decoding error - occurs; default), `replace` (replace invalid UTF-8 sequences with U+FFFD), - and `ignore` (ignore invalid UTF-8 sequences during serialization; all - bytes are copied to the output unchanged). - - @return string containing the serialization of the JSON value - - @throw type_error.316 if a string stored inside the JSON value is not - UTF-8 encoded and @a error_handler is set to strict - - @note Binary values are serialized as object containing two keys: - - "bytes": an array of bytes as integers - - "subtype": the subtype as integer or "null" if the binary has no subtype - - @complexity Linear. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @liveexample{The following example shows the effect of different @a indent\, - @a indent_char\, and @a ensure_ascii parameters to the result of the - serialization.,dump} - - @see https://docs.python.org/2/library/json.html#json.dump - - @since version 1.0.0; indentation character @a indent_char, option - @a ensure_ascii and exceptions added in version 3.0.0; error - handlers added in version 3.4.0; serialization of binary values added - in version 3.8.0. - */ - string_t dump(const int indent = -1, - const char indent_char = ' ', - const bool ensure_ascii = false, - const error_handler_t error_handler = error_handler_t::strict) const - { - string_t result; - serializer s(detail::output_adapter(result), indent_char, error_handler); - - if (indent >= 0) - { - s.dump(*this, true, ensure_ascii, static_cast(indent)); - } - else - { - s.dump(*this, false, ensure_ascii, 0); - } - - return result; - } - - /*! - @brief return the type of the JSON value (explicit) - - Return the type of the JSON value as a value from the @ref value_t - enumeration. - - @return the type of the JSON value - Value type | return value - ------------------------- | ------------------------- - null | value_t::null - boolean | value_t::boolean - string | value_t::string - number (integer) | value_t::number_integer - number (unsigned integer) | value_t::number_unsigned - number (floating-point) | value_t::number_float - object | value_t::object - array | value_t::array - binary | value_t::binary - discarded | value_t::discarded - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `type()` for all JSON - types.,type} - - @sa see @ref operator value_t() -- return the type of the JSON value (implicit) - @sa see @ref type_name() -- return the type as string - - @since version 1.0.0 - */ - constexpr value_t type() const noexcept - { - return m_type; - } - - /*! - @brief return whether type is primitive - - This function returns true if and only if the JSON type is primitive - (string, number, boolean, or null). - - @return `true` if type is primitive (string, number, boolean, or null), - `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_primitive()` for all JSON - types.,is_primitive} - - @sa see @ref is_structured() -- returns whether JSON value is structured - @sa see @ref is_null() -- returns whether JSON value is `null` - @sa see @ref is_string() -- returns whether JSON value is a string - @sa see @ref is_boolean() -- returns whether JSON value is a boolean - @sa see @ref is_number() -- returns whether JSON value is a number - @sa see @ref is_binary() -- returns whether JSON value is a binary array - - @since version 1.0.0 - */ - constexpr bool is_primitive() const noexcept - { - return is_null() || is_string() || is_boolean() || is_number() || is_binary(); - } - - /*! - @brief return whether type is structured - - This function returns true if and only if the JSON type is structured - (array or object). - - @return `true` if type is structured (array or object), `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_structured()` for all JSON - types.,is_structured} - - @sa see @ref is_primitive() -- returns whether value is primitive - @sa see @ref is_array() -- returns whether value is an array - @sa see @ref is_object() -- returns whether value is an object - - @since version 1.0.0 - */ - constexpr bool is_structured() const noexcept - { - return is_array() || is_object(); - } - - /*! - @brief return whether value is null - - This function returns true if and only if the JSON value is null. - - @return `true` if type is null, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_null()` for all JSON - types.,is_null} - - @since version 1.0.0 - */ - constexpr bool is_null() const noexcept - { - return m_type == value_t::null; - } - - /*! - @brief return whether value is a boolean - - This function returns true if and only if the JSON value is a boolean. - - @return `true` if type is boolean, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_boolean()` for all JSON - types.,is_boolean} - - @since version 1.0.0 - */ - constexpr bool is_boolean() const noexcept - { - return m_type == value_t::boolean; - } - - /*! - @brief return whether value is a number - - This function returns true if and only if the JSON value is a number. This - includes both integer (signed and unsigned) and floating-point values. - - @return `true` if type is number (regardless whether integer, unsigned - integer or floating-type), `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number()` for all JSON - types.,is_number} - - @sa see @ref is_number_integer() -- check if value is an integer or unsigned - integer number - @sa see @ref is_number_unsigned() -- check if value is an unsigned integer - number - @sa see @ref is_number_float() -- check if value is a floating-point number - - @since version 1.0.0 - */ - constexpr bool is_number() const noexcept - { - return is_number_integer() || is_number_float(); - } - - /*! - @brief return whether value is an integer number - - This function returns true if and only if the JSON value is a signed or - unsigned integer number. This excludes floating-point values. - - @return `true` if type is an integer or unsigned integer number, `false` - otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number_integer()` for all - JSON types.,is_number_integer} - - @sa see @ref is_number() -- check if value is a number - @sa see @ref is_number_unsigned() -- check if value is an unsigned integer - number - @sa see @ref is_number_float() -- check if value is a floating-point number - - @since version 1.0.0 - */ - constexpr bool is_number_integer() const noexcept - { - return m_type == value_t::number_integer || m_type == value_t::number_unsigned; - } - - /*! - @brief return whether value is an unsigned integer number - - This function returns true if and only if the JSON value is an unsigned - integer number. This excludes floating-point and signed integer values. - - @return `true` if type is an unsigned integer number, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number_unsigned()` for all - JSON types.,is_number_unsigned} - - @sa see @ref is_number() -- check if value is a number - @sa see @ref is_number_integer() -- check if value is an integer or unsigned - integer number - @sa see @ref is_number_float() -- check if value is a floating-point number - - @since version 2.0.0 - */ - constexpr bool is_number_unsigned() const noexcept - { - return m_type == value_t::number_unsigned; - } - - /*! - @brief return whether value is a floating-point number - - This function returns true if and only if the JSON value is a - floating-point number. This excludes signed and unsigned integer values. - - @return `true` if type is a floating-point number, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number_float()` for all - JSON types.,is_number_float} - - @sa see @ref is_number() -- check if value is number - @sa see @ref is_number_integer() -- check if value is an integer number - @sa see @ref is_number_unsigned() -- check if value is an unsigned integer - number - - @since version 1.0.0 - */ - constexpr bool is_number_float() const noexcept - { - return m_type == value_t::number_float; - } - - /*! - @brief return whether value is an object - - This function returns true if and only if the JSON value is an object. - - @return `true` if type is object, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_object()` for all JSON - types.,is_object} - - @since version 1.0.0 - */ - constexpr bool is_object() const noexcept - { - return m_type == value_t::object; - } - - /*! - @brief return whether value is an array - - This function returns true if and only if the JSON value is an array. - - @return `true` if type is array, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_array()` for all JSON - types.,is_array} - - @since version 1.0.0 - */ - constexpr bool is_array() const noexcept - { - return m_type == value_t::array; - } - - /*! - @brief return whether value is a string - - This function returns true if and only if the JSON value is a string. - - @return `true` if type is string, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_string()` for all JSON - types.,is_string} - - @since version 1.0.0 - */ - constexpr bool is_string() const noexcept - { - return m_type == value_t::string; - } - - /*! - @brief return whether value is a binary array - - This function returns true if and only if the JSON value is a binary array. - - @return `true` if type is binary array, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_binary()` for all JSON - types.,is_binary} - - @since version 3.8.0 - */ - constexpr bool is_binary() const noexcept - { - return m_type == value_t::binary; - } - - /*! - @brief return whether value is discarded - - This function returns true if and only if the JSON value was discarded - during parsing with a callback function (see @ref parser_callback_t). - - @note This function will always be `false` for JSON values after parsing. - That is, discarded values can only occur during parsing, but will be - removed when inside a structured value or replaced by null in other cases. - - @return `true` if type is discarded, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_discarded()` for all JSON - types.,is_discarded} - - @since version 1.0.0 - */ - constexpr bool is_discarded() const noexcept - { - return m_type == value_t::discarded; - } - - /*! - @brief return the type of the JSON value (implicit) - - Implicitly return the type of the JSON value as a value from the @ref - value_t enumeration. - - @return the type of the JSON value - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies the @ref value_t operator for - all JSON types.,operator__value_t} - - @sa see @ref type() -- return the type of the JSON value (explicit) - @sa see @ref type_name() -- return the type as string - - @since version 1.0.0 - */ - constexpr operator value_t() const noexcept - { - return m_type; - } - - /// @} - - private: - ////////////////// - // value access // - ////////////////// - - /// get a boolean (explicit) - boolean_t get_impl(boolean_t* /*unused*/) const - { - if (JSON_HEDLEY_LIKELY(is_boolean())) - { - return m_value.boolean; - } - - JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(type_name()), *this)); - } - - /// get a pointer to the value (object) - object_t* get_impl_ptr(object_t* /*unused*/) noexcept - { - return is_object() ? m_value.object : nullptr; - } - - /// get a pointer to the value (object) - constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept - { - return is_object() ? m_value.object : nullptr; - } - - /// get a pointer to the value (array) - array_t* get_impl_ptr(array_t* /*unused*/) noexcept - { - return is_array() ? m_value.array : nullptr; - } - - /// get a pointer to the value (array) - constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept - { - return is_array() ? m_value.array : nullptr; - } - - /// get a pointer to the value (string) - string_t* get_impl_ptr(string_t* /*unused*/) noexcept - { - return is_string() ? m_value.string : nullptr; - } - - /// get a pointer to the value (string) - constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept - { - return is_string() ? m_value.string : nullptr; - } - - /// get a pointer to the value (boolean) - boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept - { - return is_boolean() ? &m_value.boolean : nullptr; - } - - /// get a pointer to the value (boolean) - constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept - { - return is_boolean() ? &m_value.boolean : nullptr; - } - - /// get a pointer to the value (integer number) - number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept - { - return is_number_integer() ? &m_value.number_integer : nullptr; - } - - /// get a pointer to the value (integer number) - constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept - { - return is_number_integer() ? &m_value.number_integer : nullptr; - } - - /// get a pointer to the value (unsigned number) - number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept - { - return is_number_unsigned() ? &m_value.number_unsigned : nullptr; - } - - /// get a pointer to the value (unsigned number) - constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept - { - return is_number_unsigned() ? &m_value.number_unsigned : nullptr; - } - - /// get a pointer to the value (floating-point number) - number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept - { - return is_number_float() ? &m_value.number_float : nullptr; - } - - /// get a pointer to the value (floating-point number) - constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept - { - return is_number_float() ? &m_value.number_float : nullptr; - } - - /// get a pointer to the value (binary) - binary_t* get_impl_ptr(binary_t* /*unused*/) noexcept - { - return is_binary() ? m_value.binary : nullptr; - } - - /// get a pointer to the value (binary) - constexpr const binary_t* get_impl_ptr(const binary_t* /*unused*/) const noexcept - { - return is_binary() ? m_value.binary : nullptr; - } - - /*! - @brief helper function to implement get_ref() - - This function helps to implement get_ref() without code duplication for - const and non-const overloads - - @tparam ThisType will be deduced as `basic_json` or `const basic_json` - - @throw type_error.303 if ReferenceType does not match underlying value - type of the current JSON - */ - template - static ReferenceType get_ref_impl(ThisType& obj) - { - // delegate the call to get_ptr<>() - auto* ptr = obj.template get_ptr::type>(); - - if (JSON_HEDLEY_LIKELY(ptr != nullptr)) - { - return *ptr; - } - - JSON_THROW(type_error::create(303, "incompatible ReferenceType for get_ref, actual type is " + std::string(obj.type_name()), obj)); - } - - public: - /// @name value access - /// Direct access to the stored value of a JSON value. - /// @{ - - /*! - @brief get a pointer value (implicit) - - Implicit pointer access to the internally stored JSON value. No copies are - made. - - @warning Writing data to the pointee of the result yields an undefined - state. - - @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref - object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, - @ref number_unsigned_t, or @ref number_float_t. Enforced by a static - assertion. - - @return pointer to the internally stored JSON value if the requested - pointer type @a PointerType fits to the JSON value; `nullptr` otherwise - - @complexity Constant. - - @liveexample{The example below shows how pointers to internal values of a - JSON value can be requested. Note that no type conversions are made and a - `nullptr` is returned if the value and the requested pointer type does not - match.,get_ptr} - - @since version 1.0.0 - */ - template::value, int>::type = 0> - auto get_ptr() noexcept -> decltype(std::declval().get_impl_ptr(std::declval())) - { - // delegate the call to get_impl_ptr<>() - return get_impl_ptr(static_cast(nullptr)); - } - - /*! - @brief get a pointer value (implicit) - @copydoc get_ptr() - */ - template < typename PointerType, typename std::enable_if < - std::is_pointer::value&& - std::is_const::type>::value, int >::type = 0 > - constexpr auto get_ptr() const noexcept -> decltype(std::declval().get_impl_ptr(std::declval())) - { - // delegate the call to get_impl_ptr<>() const - return get_impl_ptr(static_cast(nullptr)); - } - - private: - /*! - @brief get a value (explicit) - - Explicit type conversion between the JSON value and a compatible value - which is [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible) - and [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). - The value is converted by calling the @ref json_serializer - `from_json()` method. - - The function is equivalent to executing - @code {.cpp} - ValueType ret; - JSONSerializer::from_json(*this, ret); - return ret; - @endcode - - This overloads is chosen if: - - @a ValueType is not @ref basic_json, - - @ref json_serializer has a `from_json()` method of the form - `void from_json(const basic_json&, ValueType&)`, and - - @ref json_serializer does not have a `from_json()` method of - the form `ValueType from_json(const basic_json&)` - - @tparam ValueType the returned value type - - @return copy of the JSON value, converted to @a ValueType - - @throw what @ref json_serializer `from_json()` method throws - - @liveexample{The example below shows several conversions from JSON values - to other types. There a few things to note: (1) Floating-point numbers can - be converted to integers\, (2) A JSON array can be converted to a standard - `std::vector`\, (3) A JSON object can be converted to C++ - associative containers such as `std::unordered_map`.,get__ValueType_const} - - @since version 2.1.0 - */ - template < typename ValueType, - detail::enable_if_t < - detail::is_default_constructible::value&& - detail::has_from_json::value, - int > = 0 > - ValueType get_impl(detail::priority_tag<0> /*unused*/) const noexcept(noexcept( - JSONSerializer::from_json(std::declval(), std::declval()))) - { - ValueType ret{}; - JSONSerializer::from_json(*this, ret); - return ret; - } - - /*! - @brief get a value (explicit); special case - - Explicit type conversion between the JSON value and a compatible value - which is **not** [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible) - and **not** [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). - The value is converted by calling the @ref json_serializer - `from_json()` method. - - The function is equivalent to executing - @code {.cpp} - return JSONSerializer::from_json(*this); - @endcode - - This overloads is chosen if: - - @a ValueType is not @ref basic_json and - - @ref json_serializer has a `from_json()` method of the form - `ValueType from_json(const basic_json&)` - - @note If @ref json_serializer has both overloads of - `from_json()`, this one is chosen. - - @tparam ValueType the returned value type - - @return copy of the JSON value, converted to @a ValueType - - @throw what @ref json_serializer `from_json()` method throws - - @since version 2.1.0 - */ - template < typename ValueType, - detail::enable_if_t < - detail::has_non_default_from_json::value, - int > = 0 > - ValueType get_impl(detail::priority_tag<1> /*unused*/) const noexcept(noexcept( - JSONSerializer::from_json(std::declval()))) - { - return JSONSerializer::from_json(*this); - } - - /*! - @brief get special-case overload - - This overloads converts the current @ref basic_json in a different - @ref basic_json type - - @tparam BasicJsonType == @ref basic_json - - @return a copy of *this, converted into @a BasicJsonType - - @complexity Depending on the implementation of the called `from_json()` - method. - - @since version 3.2.0 - */ - template < typename BasicJsonType, - detail::enable_if_t < - detail::is_basic_json::value, - int > = 0 > - BasicJsonType get_impl(detail::priority_tag<2> /*unused*/) const - { - return *this; - } - - /*! - @brief get special-case overload - - This overloads avoids a lot of template boilerplate, it can be seen as the - identity method - - @tparam BasicJsonType == @ref basic_json - - @return a copy of *this - - @complexity Constant. - - @since version 2.1.0 - */ - template::value, - int> = 0> - basic_json get_impl(detail::priority_tag<3> /*unused*/) const - { - return *this; - } - - /*! - @brief get a pointer value (explicit) - @copydoc get() - */ - template::value, - int> = 0> - constexpr auto get_impl(detail::priority_tag<4> /*unused*/) const noexcept - -> decltype(std::declval().template get_ptr()) - { - // delegate the call to get_ptr - return get_ptr(); - } - - public: - /*! - @brief get a (pointer) value (explicit) - - Performs explicit type conversion between the JSON value and a compatible value if required. - - - If the requested type is a pointer to the internally stored JSON value that pointer is returned. - No copies are made. - - - If the requested type is the current @ref basic_json, or a different @ref basic_json convertible - from the current @ref basic_json. - - - Otherwise the value is converted by calling the @ref json_serializer `from_json()` - method. - - @tparam ValueTypeCV the provided value type - @tparam ValueType the returned value type - - @return copy of the JSON value, converted to @tparam ValueType if necessary - - @throw what @ref json_serializer `from_json()` method throws if conversion is required - - @since version 2.1.0 - */ - template < typename ValueTypeCV, typename ValueType = detail::uncvref_t> -#if defined(JSON_HAS_CPP_14) - constexpr -#endif - auto get() const noexcept( - noexcept(std::declval().template get_impl(detail::priority_tag<4> {}))) - -> decltype(std::declval().template get_impl(detail::priority_tag<4> {})) - { - // we cannot static_assert on ValueTypeCV being non-const, because - // there is support for get(), which is why we - // still need the uncvref - static_assert(!std::is_reference::value, - "get() cannot be used with reference types, you might want to use get_ref()"); - return get_impl(detail::priority_tag<4> {}); - } - - /*! - @brief get a pointer value (explicit) - - Explicit pointer access to the internally stored JSON value. No copies are - made. - - @warning The pointer becomes invalid if the underlying JSON object - changes. - - @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref - object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, - @ref number_unsigned_t, or @ref number_float_t. - - @return pointer to the internally stored JSON value if the requested - pointer type @a PointerType fits to the JSON value; `nullptr` otherwise - - @complexity Constant. - - @liveexample{The example below shows how pointers to internal values of a - JSON value can be requested. Note that no type conversions are made and a - `nullptr` is returned if the value and the requested pointer type does not - match.,get__PointerType} - - @sa see @ref get_ptr() for explicit pointer-member access - - @since version 1.0.0 - */ - template::value, int>::type = 0> - auto get() noexcept -> decltype(std::declval().template get_ptr()) - { - // delegate the call to get_ptr - return get_ptr(); - } - - /*! - @brief get a value (explicit) - - Explicit type conversion between the JSON value and a compatible value. - The value is filled into the input parameter by calling the @ref json_serializer - `from_json()` method. - - The function is equivalent to executing - @code {.cpp} - ValueType v; - JSONSerializer::from_json(*this, v); - @endcode - - This overloads is chosen if: - - @a ValueType is not @ref basic_json, - - @ref json_serializer has a `from_json()` method of the form - `void from_json(const basic_json&, ValueType&)`, and - - @tparam ValueType the input parameter type. - - @return the input parameter, allowing chaining calls. - - @throw what @ref json_serializer `from_json()` method throws - - @liveexample{The example below shows several conversions from JSON values - to other types. There a few things to note: (1) Floating-point numbers can - be converted to integers\, (2) A JSON array can be converted to a standard - `std::vector`\, (3) A JSON object can be converted to C++ - associative containers such as `std::unordered_map`.,get_to} - - @since version 3.3.0 - */ - template < typename ValueType, - detail::enable_if_t < - !detail::is_basic_json::value&& - detail::has_from_json::value, - int > = 0 > - ValueType & get_to(ValueType& v) const noexcept(noexcept( - JSONSerializer::from_json(std::declval(), v))) - { - JSONSerializer::from_json(*this, v); - return v; - } - - // specialization to allow to call get_to with a basic_json value - // see https://github.com/nlohmann/json/issues/2175 - template::value, - int> = 0> - ValueType & get_to(ValueType& v) const - { - v = *this; - return v; - } - - template < - typename T, std::size_t N, - typename Array = T (&)[N], // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) - detail::enable_if_t < - detail::has_from_json::value, int > = 0 > - Array get_to(T (&v)[N]) const // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) - noexcept(noexcept(JSONSerializer::from_json( - std::declval(), v))) - { - JSONSerializer::from_json(*this, v); - return v; - } - - /*! - @brief get a reference value (implicit) - - Implicit reference access to the internally stored JSON value. No copies - are made. - - @warning Writing data to the referee of the result yields an undefined - state. - - @tparam ReferenceType reference type; must be a reference to @ref array_t, - @ref object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or - @ref number_float_t. Enforced by static assertion. - - @return reference to the internally stored JSON value if the requested - reference type @a ReferenceType fits to the JSON value; throws - type_error.303 otherwise - - @throw type_error.303 in case passed type @a ReferenceType is incompatible - with the stored JSON value; see example below - - @complexity Constant. - - @liveexample{The example shows several calls to `get_ref()`.,get_ref} - - @since version 1.1.0 - */ - template::value, int>::type = 0> - ReferenceType get_ref() - { - // delegate call to get_ref_impl - return get_ref_impl(*this); - } - - /*! - @brief get a reference value (implicit) - @copydoc get_ref() - */ - template < typename ReferenceType, typename std::enable_if < - std::is_reference::value&& - std::is_const::type>::value, int >::type = 0 > - ReferenceType get_ref() const - { - // delegate call to get_ref_impl - return get_ref_impl(*this); - } - - /*! - @brief get a value (implicit) - - Implicit type conversion between the JSON value and a compatible value. - The call is realized by calling @ref get() const. - - @tparam ValueType non-pointer type compatible to the JSON value, for - instance `int` for JSON integer numbers, `bool` for JSON booleans, or - `std::vector` types for JSON arrays. The character type of @ref string_t - as well as an initializer list of this type is excluded to avoid - ambiguities as these types implicitly convert to `std::string`. - - @return copy of the JSON value, converted to type @a ValueType - - @throw type_error.302 in case passed type @a ValueType is incompatible - to the JSON value type (e.g., the JSON value is of type boolean, but a - string is requested); see example below - - @complexity Linear in the size of the JSON value. - - @liveexample{The example below shows several conversions from JSON values - to other types. There a few things to note: (1) Floating-point numbers can - be converted to integers\, (2) A JSON array can be converted to a standard - `std::vector`\, (3) A JSON object can be converted to C++ - associative containers such as `std::unordered_map`.,operator__ValueType} - - @since version 1.0.0 - */ - template < typename ValueType, typename std::enable_if < - detail::conjunction < - detail::negation>, - detail::negation>>, - detail::negation>, - detail::negation>, - detail::negation>>, - -#if defined(JSON_HAS_CPP_17) && (defined(__GNUC__) || (defined(_MSC_VER) && _MSC_VER >= 1910 && _MSC_VER <= 1914)) - detail::negation>, -#endif - detail::is_detected_lazy - >::value, int >::type = 0 > - JSON_EXPLICIT operator ValueType() const - { - // delegate the call to get<>() const - return get(); - } - - /*! - @return reference to the binary value - - @throw type_error.302 if the value is not binary - - @sa see @ref is_binary() to check if the value is binary - - @since version 3.8.0 - */ - binary_t& get_binary() - { - if (!is_binary()) - { - JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this)); - } - - return *get_ptr(); - } - - /// @copydoc get_binary() - const binary_t& get_binary() const - { - if (!is_binary()) - { - JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this)); - } - - return *get_ptr(); - } - - /// @} - - - //////////////////// - // element access // - //////////////////// - - /// @name element access - /// Access to the JSON value. - /// @{ - - /*! - @brief access specified array element with bounds checking - - Returns a reference to the element at specified location @a idx, with - bounds checking. - - @param[in] idx index of the element to access - - @return reference to the element at index @a idx - - @throw type_error.304 if the JSON value is not an array; in this case, - calling `at` with an index makes no sense. See example below. - @throw out_of_range.401 if the index @a idx is out of range of the array; - that is, `idx >= size()`. See example below. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Constant. - - @since version 1.0.0 - - @liveexample{The example below shows how array elements can be read and - written using `at()`. It also demonstrates the different exceptions that - can be thrown.,at__size_type} - */ - reference at(size_type idx) - { - // at only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - JSON_TRY - { - return set_parent(m_value.array->at(idx)); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); - } - } - else - { - JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief access specified array element with bounds checking - - Returns a const reference to the element at specified location @a idx, - with bounds checking. - - @param[in] idx index of the element to access - - @return const reference to the element at index @a idx - - @throw type_error.304 if the JSON value is not an array; in this case, - calling `at` with an index makes no sense. See example below. - @throw out_of_range.401 if the index @a idx is out of range of the array; - that is, `idx >= size()`. See example below. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Constant. - - @since version 1.0.0 - - @liveexample{The example below shows how array elements can be read using - `at()`. It also demonstrates the different exceptions that can be thrown., - at__size_type_const} - */ - const_reference at(size_type idx) const - { - // at only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - JSON_TRY - { - return m_value.array->at(idx); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); - } - } - else - { - JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief access specified object element with bounds checking - - Returns a reference to the element at with specified key @a key, with - bounds checking. - - @param[in] key key of the element to access - - @return reference to the element at key @a key - - @throw type_error.304 if the JSON value is not an object; in this case, - calling `at` with a key makes no sense. See example below. - @throw out_of_range.403 if the key @a key is is not stored in the object; - that is, `find(key) == end()`. See example below. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Logarithmic in the size of the container. - - @sa see @ref operator[](const typename object_t::key_type&) for unchecked - access by reference - @sa see @ref value() for access by value with a default value - - @since version 1.0.0 - - @liveexample{The example below shows how object elements can be read and - written using `at()`. It also demonstrates the different exceptions that - can be thrown.,at__object_t_key_type} - */ - reference at(const typename object_t::key_type& key) - { - // at only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - JSON_TRY - { - return set_parent(m_value.object->at(key)); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this)); - } - } - else - { - JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief access specified object element with bounds checking - - Returns a const reference to the element at with specified key @a key, - with bounds checking. - - @param[in] key key of the element to access - - @return const reference to the element at key @a key - - @throw type_error.304 if the JSON value is not an object; in this case, - calling `at` with a key makes no sense. See example below. - @throw out_of_range.403 if the key @a key is is not stored in the object; - that is, `find(key) == end()`. See example below. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Logarithmic in the size of the container. - - @sa see @ref operator[](const typename object_t::key_type&) for unchecked - access by reference - @sa see @ref value() for access by value with a default value - - @since version 1.0.0 - - @liveexample{The example below shows how object elements can be read using - `at()`. It also demonstrates the different exceptions that can be thrown., - at__object_t_key_type_const} - */ - const_reference at(const typename object_t::key_type& key) const - { - // at only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - JSON_TRY - { - return m_value.object->at(key); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this)); - } - } - else - { - JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief access specified array element - - Returns a reference to the element at specified location @a idx. - - @note If @a idx is beyond the range of the array (i.e., `idx >= size()`), - then the array is silently filled up with `null` values to make `idx` a - valid reference to the last stored element. - - @param[in] idx index of the element to access - - @return reference to the element at index @a idx - - @throw type_error.305 if the JSON value is not an array or null; in that - cases, using the [] operator with an index makes no sense. - - @complexity Constant if @a idx is in the range of the array. Otherwise - linear in `idx - size()`. - - @liveexample{The example below shows how array elements can be read and - written using `[]` operator. Note the addition of `null` - values.,operatorarray__size_type} - - @since version 1.0.0 - */ - reference operator[](size_type idx) - { - // implicitly convert null value to an empty array - if (is_null()) - { - m_type = value_t::array; - m_value.array = create(); - assert_invariant(); - } - - // operator[] only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - // fill up array with null values if given idx is outside range - if (idx >= m_value.array->size()) - { -#if JSON_DIAGNOSTICS - // remember array size before resizing - const auto previous_size = m_value.array->size(); -#endif - m_value.array->resize(idx + 1); - -#if JSON_DIAGNOSTICS - // set parent for values added above - set_parents(begin() + static_cast(previous_size), static_cast(idx + 1 - previous_size)); -#endif - } - - return m_value.array->operator[](idx); - } - - JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this)); - } - - /*! - @brief access specified array element - - Returns a const reference to the element at specified location @a idx. - - @param[in] idx index of the element to access - - @return const reference to the element at index @a idx - - @throw type_error.305 if the JSON value is not an array; in that case, - using the [] operator with an index makes no sense. - - @complexity Constant. - - @liveexample{The example below shows how array elements can be read using - the `[]` operator.,operatorarray__size_type_const} - - @since version 1.0.0 - */ - const_reference operator[](size_type idx) const - { - // const operator[] only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - return m_value.array->operator[](idx); - } - - JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this)); - } - - /*! - @brief access specified object element - - Returns a reference to the element at with specified key @a key. - - @note If @a key is not found in the object, then it is silently added to - the object and filled with a `null` value to make `key` a valid reference. - In case the value was `null` before, it is converted to an object. - - @param[in] key key of the element to access - - @return reference to the element at key @a key - - @throw type_error.305 if the JSON value is not an object or null; in that - cases, using the [] operator with a key makes no sense. - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be read and - written using the `[]` operator.,operatorarray__key_type} - - @sa see @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa see @ref value() for access by value with a default value - - @since version 1.0.0 - */ - reference operator[](const typename object_t::key_type& key) - { - // implicitly convert null value to an empty object - if (is_null()) - { - m_type = value_t::object; - m_value.object = create(); - assert_invariant(); - } - - // operator[] only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - return set_parent(m_value.object->operator[](key)); - } - - JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); - } - - /*! - @brief read-only access specified object element - - Returns a const reference to the element at with specified key @a key. No - bounds checking is performed. - - @warning If the element with key @a key does not exist, the behavior is - undefined. - - @param[in] key key of the element to access - - @return const reference to the element at key @a key - - @pre The element with key @a key must exist. **This precondition is - enforced with an assertion.** - - @throw type_error.305 if the JSON value is not an object; in that case, - using the [] operator with a key makes no sense. - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be read using - the `[]` operator.,operatorarray__key_type_const} - - @sa see @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa see @ref value() for access by value with a default value - - @since version 1.0.0 - */ - const_reference operator[](const typename object_t::key_type& key) const - { - // const operator[] only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - JSON_ASSERT(m_value.object->find(key) != m_value.object->end()); - return m_value.object->find(key)->second; - } - - JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); - } - - /*! - @brief access specified object element - - Returns a reference to the element at with specified key @a key. - - @note If @a key is not found in the object, then it is silently added to - the object and filled with a `null` value to make `key` a valid reference. - In case the value was `null` before, it is converted to an object. - - @param[in] key key of the element to access - - @return reference to the element at key @a key - - @throw type_error.305 if the JSON value is not an object or null; in that - cases, using the [] operator with a key makes no sense. - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be read and - written using the `[]` operator.,operatorarray__key_type} - - @sa see @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa see @ref value() for access by value with a default value - - @since version 1.1.0 - */ - template - JSON_HEDLEY_NON_NULL(2) - reference operator[](T* key) - { - // implicitly convert null to object - if (is_null()) - { - m_type = value_t::object; - m_value = value_t::object; - assert_invariant(); - } - - // at only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - return set_parent(m_value.object->operator[](key)); - } - - JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); - } - - /*! - @brief read-only access specified object element - - Returns a const reference to the element at with specified key @a key. No - bounds checking is performed. - - @warning If the element with key @a key does not exist, the behavior is - undefined. - - @param[in] key key of the element to access - - @return const reference to the element at key @a key - - @pre The element with key @a key must exist. **This precondition is - enforced with an assertion.** - - @throw type_error.305 if the JSON value is not an object; in that case, - using the [] operator with a key makes no sense. - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be read using - the `[]` operator.,operatorarray__key_type_const} - - @sa see @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa see @ref value() for access by value with a default value - - @since version 1.1.0 - */ - template - JSON_HEDLEY_NON_NULL(2) - const_reference operator[](T* key) const - { - // at only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - JSON_ASSERT(m_value.object->find(key) != m_value.object->end()); - return m_value.object->find(key)->second; - } - - JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); - } - - /*! - @brief access specified object element with default value - - Returns either a copy of an object's element at the specified key @a key - or a given default value if no element with key @a key exists. - - The function is basically equivalent to executing - @code {.cpp} - try { - return at(key); - } catch(out_of_range) { - return default_value; - } - @endcode - - @note Unlike @ref at(const typename object_t::key_type&), this function - does not throw if the given key @a key was not found. - - @note Unlike @ref operator[](const typename object_t::key_type& key), this - function does not implicitly add an element to the position defined by @a - key. This function is furthermore also applicable to const objects. - - @param[in] key key of the element to access - @param[in] default_value the value to return if @a key is not found - - @tparam ValueType type compatible to JSON values, for instance `int` for - JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for - JSON arrays. Note the type of the expected value at @a key and the default - value @a default_value must be compatible. - - @return copy of the element at key @a key or @a default_value if @a key - is not found - - @throw type_error.302 if @a default_value does not match the type of the - value at @a key - @throw type_error.306 if the JSON value is not an object; in that case, - using `value()` with a key makes no sense. - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be queried - with a default value.,basic_json__value} - - @sa see @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa see @ref operator[](const typename object_t::key_type&) for unchecked - access by reference - - @since version 1.0.0 - */ - // using std::is_convertible in a std::enable_if will fail when using explicit conversions - template < class ValueType, typename std::enable_if < - detail::is_getable::value - && !std::is_same::value, int >::type = 0 > - ValueType value(const typename object_t::key_type& key, const ValueType& default_value) const - { - // at only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - // if key is found, return value and given default value otherwise - const auto it = find(key); - if (it != end()) - { - return it->template get(); - } - - return default_value; - } - - JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this)); - } - - /*! - @brief overload for a default value of type const char* - @copydoc basic_json::value(const typename object_t::key_type&, const ValueType&) const - */ - string_t value(const typename object_t::key_type& key, const char* default_value) const - { - return value(key, string_t(default_value)); - } - - /*! - @brief access specified object element via JSON Pointer with default value - - Returns either a copy of an object's element at the specified key @a key - or a given default value if no element with key @a key exists. - - The function is basically equivalent to executing - @code {.cpp} - try { - return at(ptr); - } catch(out_of_range) { - return default_value; - } - @endcode - - @note Unlike @ref at(const json_pointer&), this function does not throw - if the given key @a key was not found. - - @param[in] ptr a JSON pointer to the element to access - @param[in] default_value the value to return if @a ptr found no value - - @tparam ValueType type compatible to JSON values, for instance `int` for - JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for - JSON arrays. Note the type of the expected value at @a key and the default - value @a default_value must be compatible. - - @return copy of the element at key @a key or @a default_value if @a key - is not found - - @throw type_error.302 if @a default_value does not match the type of the - value at @a ptr - @throw type_error.306 if the JSON value is not an object; in that case, - using `value()` with a key makes no sense. - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be queried - with a default value.,basic_json__value_ptr} - - @sa see @ref operator[](const json_pointer&) for unchecked access by reference - - @since version 2.0.2 - */ - template::value, int>::type = 0> - ValueType value(const json_pointer& ptr, const ValueType& default_value) const - { - // at only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - // if pointer resolves a value, return it or use default value - JSON_TRY - { - return ptr.get_checked(this).template get(); - } - JSON_INTERNAL_CATCH (out_of_range&) - { - return default_value; - } - } - - JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this)); - } - - /*! - @brief overload for a default value of type const char* - @copydoc basic_json::value(const json_pointer&, ValueType) const - */ - JSON_HEDLEY_NON_NULL(3) - string_t value(const json_pointer& ptr, const char* default_value) const - { - return value(ptr, string_t(default_value)); - } - - /*! - @brief access the first element - - Returns a reference to the first element in the container. For a JSON - container `c`, the expression `c.front()` is equivalent to `*c.begin()`. - - @return In case of a structured type (array or object), a reference to the - first element is returned. In case of number, string, boolean, or binary - values, a reference to the value is returned. - - @complexity Constant. - - @pre The JSON value must not be `null` (would throw `std::out_of_range`) - or an empty array or object (undefined behavior, **guarded by - assertions**). - @post The JSON value remains unchanged. - - @throw invalid_iterator.214 when called on `null` value - - @liveexample{The following code shows an example for `front()`.,front} - - @sa see @ref back() -- access the last element - - @since version 1.0.0 - */ - reference front() - { - return *begin(); - } - - /*! - @copydoc basic_json::front() - */ - const_reference front() const - { - return *cbegin(); - } - - /*! - @brief access the last element - - Returns a reference to the last element in the container. For a JSON - container `c`, the expression `c.back()` is equivalent to - @code {.cpp} - auto tmp = c.end(); - --tmp; - return *tmp; - @endcode - - @return In case of a structured type (array or object), a reference to the - last element is returned. In case of number, string, boolean, or binary - values, a reference to the value is returned. - - @complexity Constant. - - @pre The JSON value must not be `null` (would throw `std::out_of_range`) - or an empty array or object (undefined behavior, **guarded by - assertions**). - @post The JSON value remains unchanged. - - @throw invalid_iterator.214 when called on a `null` value. See example - below. - - @liveexample{The following code shows an example for `back()`.,back} - - @sa see @ref front() -- access the first element - - @since version 1.0.0 - */ - reference back() - { - auto tmp = end(); - --tmp; - return *tmp; - } - - /*! - @copydoc basic_json::back() - */ - const_reference back() const - { - auto tmp = cend(); - --tmp; - return *tmp; - } - - /*! - @brief remove element given an iterator - - Removes the element specified by iterator @a pos. The iterator @a pos must - be valid and dereferenceable. Thus the `end()` iterator (which is valid, - but is not dereferenceable) cannot be used as a value for @a pos. - - If called on a primitive type other than `null`, the resulting JSON value - will be `null`. - - @param[in] pos iterator to the element to remove - @return Iterator following the last removed element. If the iterator @a - pos refers to the last element, the `end()` iterator is returned. - - @tparam IteratorType an @ref iterator or @ref const_iterator - - @post Invalidates iterators and references at or after the point of the - erase, including the `end()` iterator. - - @throw type_error.307 if called on a `null` value; example: `"cannot use - erase() with null"` - @throw invalid_iterator.202 if called on an iterator which does not belong - to the current JSON value; example: `"iterator does not fit current - value"` - @throw invalid_iterator.205 if called on a primitive type with invalid - iterator (i.e., any iterator which is not `begin()`); example: `"iterator - out of range"` - - @complexity The complexity depends on the type: - - objects: amortized constant - - arrays: linear in distance between @a pos and the end of the container - - strings and binary: linear in the length of the member - - other types: constant - - @liveexample{The example shows the result of `erase()` for different JSON - types.,erase__IteratorType} - - @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in - the given range - @sa see @ref erase(const typename object_t::key_type&) -- removes the element - from an object at the given key - @sa see @ref erase(const size_type) -- removes the element from an array at - the given index - - @since version 1.0.0 - */ - template < class IteratorType, typename std::enable_if < - std::is_same::value || - std::is_same::value, int >::type - = 0 > - IteratorType erase(IteratorType pos) - { - // make sure iterator fits the current value - if (JSON_HEDLEY_UNLIKELY(this != pos.m_object)) - { - JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); - } - - IteratorType result = end(); - - switch (m_type) - { - case value_t::boolean: - case value_t::number_float: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::string: - case value_t::binary: - { - if (JSON_HEDLEY_UNLIKELY(!pos.m_it.primitive_iterator.is_begin())) - { - JSON_THROW(invalid_iterator::create(205, "iterator out of range", *this)); - } - - if (is_string()) - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, m_value.string); - std::allocator_traits::deallocate(alloc, m_value.string, 1); - m_value.string = nullptr; - } - else if (is_binary()) - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, m_value.binary); - std::allocator_traits::deallocate(alloc, m_value.binary, 1); - m_value.binary = nullptr; - } - - m_type = value_t::null; - assert_invariant(); - break; - } - - case value_t::object: - { - result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator); - break; - } - - case value_t::array: - { - result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator); - break; - } - - case value_t::null: - case value_t::discarded: - default: - JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); - } - - return result; - } - - /*! - @brief remove elements given an iterator range - - Removes the element specified by the range `[first; last)`. The iterator - @a first does not need to be dereferenceable if `first == last`: erasing - an empty range is a no-op. - - If called on a primitive type other than `null`, the resulting JSON value - will be `null`. - - @param[in] first iterator to the beginning of the range to remove - @param[in] last iterator past the end of the range to remove - @return Iterator following the last removed element. If the iterator @a - second refers to the last element, the `end()` iterator is returned. - - @tparam IteratorType an @ref iterator or @ref const_iterator - - @post Invalidates iterators and references at or after the point of the - erase, including the `end()` iterator. - - @throw type_error.307 if called on a `null` value; example: `"cannot use - erase() with null"` - @throw invalid_iterator.203 if called on iterators which does not belong - to the current JSON value; example: `"iterators do not fit current value"` - @throw invalid_iterator.204 if called on a primitive type with invalid - iterators (i.e., if `first != begin()` and `last != end()`); example: - `"iterators out of range"` - - @complexity The complexity depends on the type: - - objects: `log(size()) + std::distance(first, last)` - - arrays: linear in the distance between @a first and @a last, plus linear - in the distance between @a last and end of the container - - strings and binary: linear in the length of the member - - other types: constant - - @liveexample{The example shows the result of `erase()` for different JSON - types.,erase__IteratorType_IteratorType} - - @sa see @ref erase(IteratorType) -- removes the element at a given position - @sa see @ref erase(const typename object_t::key_type&) -- removes the element - from an object at the given key - @sa see @ref erase(const size_type) -- removes the element from an array at - the given index - - @since version 1.0.0 - */ - template < class IteratorType, typename std::enable_if < - std::is_same::value || - std::is_same::value, int >::type - = 0 > - IteratorType erase(IteratorType first, IteratorType last) - { - // make sure iterator fits the current value - if (JSON_HEDLEY_UNLIKELY(this != first.m_object || this != last.m_object)) - { - JSON_THROW(invalid_iterator::create(203, "iterators do not fit current value", *this)); - } - - IteratorType result = end(); - - switch (m_type) - { - case value_t::boolean: - case value_t::number_float: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::string: - case value_t::binary: - { - if (JSON_HEDLEY_LIKELY(!first.m_it.primitive_iterator.is_begin() - || !last.m_it.primitive_iterator.is_end())) - { - JSON_THROW(invalid_iterator::create(204, "iterators out of range", *this)); - } - - if (is_string()) - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, m_value.string); - std::allocator_traits::deallocate(alloc, m_value.string, 1); - m_value.string = nullptr; - } - else if (is_binary()) - { - AllocatorType alloc; - std::allocator_traits::destroy(alloc, m_value.binary); - std::allocator_traits::deallocate(alloc, m_value.binary, 1); - m_value.binary = nullptr; - } - - m_type = value_t::null; - assert_invariant(); - break; - } - - case value_t::object: - { - result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator, - last.m_it.object_iterator); - break; - } - - case value_t::array: - { - result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator, - last.m_it.array_iterator); - break; - } - - case value_t::null: - case value_t::discarded: - default: - JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); - } - - return result; - } - - /*! - @brief remove element from a JSON object given a key - - Removes elements from a JSON object with the key value @a key. - - @param[in] key value of the elements to remove - - @return Number of elements removed. If @a ObjectType is the default - `std::map` type, the return value will always be `0` (@a key was not - found) or `1` (@a key was found). - - @post References and iterators to the erased elements are invalidated. - Other references and iterators are not affected. - - @throw type_error.307 when called on a type other than JSON object; - example: `"cannot use erase() with null"` - - @complexity `log(size()) + count(key)` - - @liveexample{The example shows the effect of `erase()`.,erase__key_type} - - @sa see @ref erase(IteratorType) -- removes the element at a given position - @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in - the given range - @sa see @ref erase(const size_type) -- removes the element from an array at - the given index - - @since version 1.0.0 - */ - size_type erase(const typename object_t::key_type& key) - { - // this erase only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - return m_value.object->erase(key); - } - - JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); - } - - /*! - @brief remove element from a JSON array given an index - - Removes element from a JSON array at the index @a idx. - - @param[in] idx index of the element to remove - - @throw type_error.307 when called on a type other than JSON object; - example: `"cannot use erase() with null"` - @throw out_of_range.401 when `idx >= size()`; example: `"array index 17 - is out of range"` - - @complexity Linear in distance between @a idx and the end of the container. - - @liveexample{The example shows the effect of `erase()`.,erase__size_type} - - @sa see @ref erase(IteratorType) -- removes the element at a given position - @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in - the given range - @sa see @ref erase(const typename object_t::key_type&) -- removes the element - from an object at the given key - - @since version 1.0.0 - */ - void erase(const size_type idx) - { - // this erase only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - if (JSON_HEDLEY_UNLIKELY(idx >= size())) - { - JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); - } - - m_value.array->erase(m_value.array->begin() + static_cast(idx)); - } - else - { - JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); - } - } - - /// @} - - - //////////// - // lookup // - //////////// - - /// @name lookup - /// @{ - - /*! - @brief find an element in a JSON object - - Finds an element in a JSON object with key equivalent to @a key. If the - element is not found or the JSON value is not an object, end() is - returned. - - @note This method always returns @ref end() when executed on a JSON type - that is not an object. - - @param[in] key key value of the element to search for. - - @return Iterator to an element with key equivalent to @a key. If no such - element is found or the JSON value is not an object, past-the-end (see - @ref end()) iterator is returned. - - @complexity Logarithmic in the size of the JSON object. - - @liveexample{The example shows how `find()` is used.,find__key_type} - - @sa see @ref contains(KeyT&&) const -- checks whether a key exists - - @since version 1.0.0 - */ - template - iterator find(KeyT&& key) - { - auto result = end(); - - if (is_object()) - { - result.m_it.object_iterator = m_value.object->find(std::forward(key)); - } - - return result; - } - - /*! - @brief find an element in a JSON object - @copydoc find(KeyT&&) - */ - template - const_iterator find(KeyT&& key) const - { - auto result = cend(); - - if (is_object()) - { - result.m_it.object_iterator = m_value.object->find(std::forward(key)); - } - - return result; - } - - /*! - @brief returns the number of occurrences of a key in a JSON object - - Returns the number of elements with key @a key. If ObjectType is the - default `std::map` type, the return value will always be `0` (@a key was - not found) or `1` (@a key was found). - - @note This method always returns `0` when executed on a JSON type that is - not an object. - - @param[in] key key value of the element to count - - @return Number of elements with key @a key. If the JSON value is not an - object, the return value will be `0`. - - @complexity Logarithmic in the size of the JSON object. - - @liveexample{The example shows how `count()` is used.,count} - - @since version 1.0.0 - */ - template - size_type count(KeyT&& key) const - { - // return 0 for all nonobject types - return is_object() ? m_value.object->count(std::forward(key)) : 0; - } - - /*! - @brief check the existence of an element in a JSON object - - Check whether an element exists in a JSON object with key equivalent to - @a key. If the element is not found or the JSON value is not an object, - false is returned. - - @note This method always returns false when executed on a JSON type - that is not an object. - - @param[in] key key value to check its existence. - - @return true if an element with specified @a key exists. If no such - element with such key is found or the JSON value is not an object, - false is returned. - - @complexity Logarithmic in the size of the JSON object. - - @liveexample{The following code shows an example for `contains()`.,contains} - - @sa see @ref find(KeyT&&) -- returns an iterator to an object element - @sa see @ref contains(const json_pointer&) const -- checks the existence for a JSON pointer - - @since version 3.6.0 - */ - template < typename KeyT, typename std::enable_if < - !std::is_same::type, json_pointer>::value, int >::type = 0 > - bool contains(KeyT && key) const - { - return is_object() && m_value.object->find(std::forward(key)) != m_value.object->end(); - } - - /*! - @brief check the existence of an element in a JSON object given a JSON pointer - - Check whether the given JSON pointer @a ptr can be resolved in the current - JSON value. - - @note This method can be executed on any JSON value type. - - @param[in] ptr JSON pointer to check its existence. - - @return true if the JSON pointer can be resolved to a stored value, false - otherwise. - - @post If `j.contains(ptr)` returns true, it is safe to call `j[ptr]`. - - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - - @complexity Logarithmic in the size of the JSON object. - - @liveexample{The following code shows an example for `contains()`.,contains_json_pointer} - - @sa see @ref contains(KeyT &&) const -- checks the existence of a key - - @since version 3.7.0 - */ - bool contains(const json_pointer& ptr) const - { - return ptr.contains(this); - } - - /// @} - - - /////////////// - // iterators // - /////////////// - - /// @name iterators - /// @{ - - /*! - @brief returns an iterator to the first element - - Returns an iterator to the first element. - - @image html range-begin-end.svg "Illustration from cppreference.com" - - @return iterator to the first element - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - @liveexample{The following code shows an example for `begin()`.,begin} - - @sa see @ref cbegin() -- returns a const iterator to the beginning - @sa see @ref end() -- returns an iterator to the end - @sa see @ref cend() -- returns a const iterator to the end - - @since version 1.0.0 - */ - iterator begin() noexcept - { - iterator result(this); - result.set_begin(); - return result; - } - - /*! - @copydoc basic_json::cbegin() - */ - const_iterator begin() const noexcept - { - return cbegin(); - } - - /*! - @brief returns a const iterator to the first element - - Returns a const iterator to the first element. - - @image html range-begin-end.svg "Illustration from cppreference.com" - - @return const iterator to the first element - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).begin()`. - - @liveexample{The following code shows an example for `cbegin()`.,cbegin} - - @sa see @ref begin() -- returns an iterator to the beginning - @sa see @ref end() -- returns an iterator to the end - @sa see @ref cend() -- returns a const iterator to the end - - @since version 1.0.0 - */ - const_iterator cbegin() const noexcept - { - const_iterator result(this); - result.set_begin(); - return result; - } - - /*! - @brief returns an iterator to one past the last element - - Returns an iterator to one past the last element. - - @image html range-begin-end.svg "Illustration from cppreference.com" - - @return iterator one past the last element - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - @liveexample{The following code shows an example for `end()`.,end} - - @sa see @ref cend() -- returns a const iterator to the end - @sa see @ref begin() -- returns an iterator to the beginning - @sa see @ref cbegin() -- returns a const iterator to the beginning - - @since version 1.0.0 - */ - iterator end() noexcept - { - iterator result(this); - result.set_end(); - return result; - } - - /*! - @copydoc basic_json::cend() - */ - const_iterator end() const noexcept - { - return cend(); - } - - /*! - @brief returns a const iterator to one past the last element - - Returns a const iterator to one past the last element. - - @image html range-begin-end.svg "Illustration from cppreference.com" - - @return const iterator one past the last element - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).end()`. - - @liveexample{The following code shows an example for `cend()`.,cend} - - @sa see @ref end() -- returns an iterator to the end - @sa see @ref begin() -- returns an iterator to the beginning - @sa see @ref cbegin() -- returns a const iterator to the beginning - - @since version 1.0.0 - */ - const_iterator cend() const noexcept - { - const_iterator result(this); - result.set_end(); - return result; - } - - /*! - @brief returns an iterator to the reverse-beginning - - Returns an iterator to the reverse-beginning; that is, the last element. - - @image html range-rbegin-rend.svg "Illustration from cppreference.com" - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `reverse_iterator(end())`. - - @liveexample{The following code shows an example for `rbegin()`.,rbegin} - - @sa see @ref crbegin() -- returns a const reverse iterator to the beginning - @sa see @ref rend() -- returns a reverse iterator to the end - @sa see @ref crend() -- returns a const reverse iterator to the end - - @since version 1.0.0 - */ - reverse_iterator rbegin() noexcept - { - return reverse_iterator(end()); - } - - /*! - @copydoc basic_json::crbegin() - */ - const_reverse_iterator rbegin() const noexcept - { - return crbegin(); - } - - /*! - @brief returns an iterator to the reverse-end - - Returns an iterator to the reverse-end; that is, one before the first - element. - - @image html range-rbegin-rend.svg "Illustration from cppreference.com" - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `reverse_iterator(begin())`. - - @liveexample{The following code shows an example for `rend()`.,rend} - - @sa see @ref crend() -- returns a const reverse iterator to the end - @sa see @ref rbegin() -- returns a reverse iterator to the beginning - @sa see @ref crbegin() -- returns a const reverse iterator to the beginning - - @since version 1.0.0 - */ - reverse_iterator rend() noexcept - { - return reverse_iterator(begin()); - } - - /*! - @copydoc basic_json::crend() - */ - const_reverse_iterator rend() const noexcept - { - return crend(); - } - - /*! - @brief returns a const reverse iterator to the last element - - Returns a const iterator to the reverse-beginning; that is, the last - element. - - @image html range-rbegin-rend.svg "Illustration from cppreference.com" - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).rbegin()`. - - @liveexample{The following code shows an example for `crbegin()`.,crbegin} - - @sa see @ref rbegin() -- returns a reverse iterator to the beginning - @sa see @ref rend() -- returns a reverse iterator to the end - @sa see @ref crend() -- returns a const reverse iterator to the end - - @since version 1.0.0 - */ - const_reverse_iterator crbegin() const noexcept - { - return const_reverse_iterator(cend()); - } - - /*! - @brief returns a const reverse iterator to one before the first - - Returns a const reverse iterator to the reverse-end; that is, one before - the first element. - - @image html range-rbegin-rend.svg "Illustration from cppreference.com" - - @complexity Constant. - - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).rend()`. - - @liveexample{The following code shows an example for `crend()`.,crend} - - @sa see @ref rend() -- returns a reverse iterator to the end - @sa see @ref rbegin() -- returns a reverse iterator to the beginning - @sa see @ref crbegin() -- returns a const reverse iterator to the beginning - - @since version 1.0.0 - */ - const_reverse_iterator crend() const noexcept - { - return const_reverse_iterator(cbegin()); - } - - public: - /*! - @brief wrapper to access iterator member functions in range-based for - - This function allows to access @ref iterator::key() and @ref - iterator::value() during range-based for loops. In these loops, a - reference to the JSON values is returned, so there is no access to the - underlying iterator. - - For loop without iterator_wrapper: - - @code{cpp} - for (auto it = j_object.begin(); it != j_object.end(); ++it) - { - std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; - } - @endcode - - Range-based for loop without iterator proxy: - - @code{cpp} - for (auto it : j_object) - { - // "it" is of type json::reference and has no key() member - std::cout << "value: " << it << '\n'; - } - @endcode - - Range-based for loop with iterator proxy: - - @code{cpp} - for (auto it : json::iterator_wrapper(j_object)) - { - std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; - } - @endcode - - @note When iterating over an array, `key()` will return the index of the - element as string (see example). - - @param[in] ref reference to a JSON value - @return iteration proxy object wrapping @a ref with an interface to use in - range-based for loops - - @liveexample{The following code shows how the wrapper is used,iterator_wrapper} - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Constant. - - @note The name of this function is not yet final and may change in the - future. - - @deprecated This stream operator is deprecated and will be removed in - future 4.0.0 of the library. Please use @ref items() instead; - that is, replace `json::iterator_wrapper(j)` with `j.items()`. - */ - JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items()) - static iteration_proxy iterator_wrapper(reference ref) noexcept - { - return ref.items(); - } - - /*! - @copydoc iterator_wrapper(reference) - */ - JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items()) - static iteration_proxy iterator_wrapper(const_reference ref) noexcept - { - return ref.items(); - } - - /*! - @brief helper to access iterator member functions in range-based for - - This function allows to access @ref iterator::key() and @ref - iterator::value() during range-based for loops. In these loops, a - reference to the JSON values is returned, so there is no access to the - underlying iterator. - - For loop without `items()` function: - - @code{cpp} - for (auto it = j_object.begin(); it != j_object.end(); ++it) - { - std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; - } - @endcode - - Range-based for loop without `items()` function: - - @code{cpp} - for (auto it : j_object) - { - // "it" is of type json::reference and has no key() member - std::cout << "value: " << it << '\n'; - } - @endcode - - Range-based for loop with `items()` function: - - @code{cpp} - for (auto& el : j_object.items()) - { - std::cout << "key: " << el.key() << ", value:" << el.value() << '\n'; - } - @endcode - - The `items()` function also allows to use - [structured bindings](https://en.cppreference.com/w/cpp/language/structured_binding) - (C++17): - - @code{cpp} - for (auto& [key, val] : j_object.items()) - { - std::cout << "key: " << key << ", value:" << val << '\n'; - } - @endcode - - @note When iterating over an array, `key()` will return the index of the - element as string (see example). For primitive types (e.g., numbers), - `key()` returns an empty string. - - @warning Using `items()` on temporary objects is dangerous. Make sure the - object's lifetime exeeds the iteration. See - for more - information. - - @return iteration proxy object wrapping @a ref with an interface to use in - range-based for loops - - @liveexample{The following code shows how the function is used.,items} - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Constant. - - @since version 3.1.0, structured bindings support since 3.5.0. - */ - iteration_proxy items() noexcept - { - return iteration_proxy(*this); - } - - /*! - @copydoc items() - */ - iteration_proxy items() const noexcept - { - return iteration_proxy(*this); - } - - /// @} - - - ////////////// - // capacity // - ////////////// - - /// @name capacity - /// @{ - - /*! - @brief checks whether the container is empty. - - Checks if a JSON value has no elements (i.e. whether its @ref size is `0`). - - @return The return value depends on the different types and is - defined as follows: - Value type | return value - ----------- | ------------- - null | `true` - boolean | `false` - string | `false` - number | `false` - binary | `false` - object | result of function `object_t::empty()` - array | result of function `array_t::empty()` - - @liveexample{The following code uses `empty()` to check if a JSON - object contains any elements.,empty} - - @complexity Constant, as long as @ref array_t and @ref object_t satisfy - the Container concept; that is, their `empty()` functions have constant - complexity. - - @iterators No changes. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @note This function does not return whether a string stored as JSON value - is empty - it returns whether the JSON container itself is empty which is - false in the case of a string. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - Has the semantics of `begin() == end()`. - - @sa see @ref size() -- returns the number of elements - - @since version 1.0.0 - */ - bool empty() const noexcept - { - switch (m_type) - { - case value_t::null: - { - // null values are empty - return true; - } - - case value_t::array: - { - // delegate call to array_t::empty() - return m_value.array->empty(); - } - - case value_t::object: - { - // delegate call to object_t::empty() - return m_value.object->empty(); - } - - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - // all other types are nonempty - return false; - } - } - } - - /*! - @brief returns the number of elements - - Returns the number of elements in a JSON value. - - @return The return value depends on the different types and is - defined as follows: - Value type | return value - ----------- | ------------- - null | `0` - boolean | `1` - string | `1` - number | `1` - binary | `1` - object | result of function object_t::size() - array | result of function array_t::size() - - @liveexample{The following code calls `size()` on the different value - types.,size} - - @complexity Constant, as long as @ref array_t and @ref object_t satisfy - the Container concept; that is, their size() functions have constant - complexity. - - @iterators No changes. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @note This function does not return the length of a string stored as JSON - value - it returns the number of elements in the JSON value which is 1 in - the case of a string. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - Has the semantics of `std::distance(begin(), end())`. - - @sa see @ref empty() -- checks whether the container is empty - @sa see @ref max_size() -- returns the maximal number of elements - - @since version 1.0.0 - */ - size_type size() const noexcept - { - switch (m_type) - { - case value_t::null: - { - // null values are empty - return 0; - } - - case value_t::array: - { - // delegate call to array_t::size() - return m_value.array->size(); - } - - case value_t::object: - { - // delegate call to object_t::size() - return m_value.object->size(); - } - - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - // all other types have size 1 - return 1; - } - } - } - - /*! - @brief returns the maximum possible number of elements - - Returns the maximum number of elements a JSON value is able to hold due to - system or library implementation limitations, i.e. `std::distance(begin(), - end())` for the JSON value. - - @return The return value depends on the different types and is - defined as follows: - Value type | return value - ----------- | ------------- - null | `0` (same as `size()`) - boolean | `1` (same as `size()`) - string | `1` (same as `size()`) - number | `1` (same as `size()`) - binary | `1` (same as `size()`) - object | result of function `object_t::max_size()` - array | result of function `array_t::max_size()` - - @liveexample{The following code calls `max_size()` on the different value - types. Note the output is implementation specific.,max_size} - - @complexity Constant, as long as @ref array_t and @ref object_t satisfy - the Container concept; that is, their `max_size()` functions have constant - complexity. - - @iterators No changes. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @requirement This function helps `basic_json` satisfying the - [Container](https://en.cppreference.com/w/cpp/named_req/Container) - requirements: - - The complexity is constant. - - Has the semantics of returning `b.size()` where `b` is the largest - possible JSON value. - - @sa see @ref size() -- returns the number of elements - - @since version 1.0.0 - */ - size_type max_size() const noexcept - { - switch (m_type) - { - case value_t::array: - { - // delegate call to array_t::max_size() - return m_value.array->max_size(); - } - - case value_t::object: - { - // delegate call to object_t::max_size() - return m_value.object->max_size(); - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - // all other types have max_size() == size() - return size(); - } - } - } - - /// @} - - - /////////////// - // modifiers // - /////////////// - - /// @name modifiers - /// @{ - - /*! - @brief clears the contents - - Clears the content of a JSON value and resets it to the default value as - if @ref basic_json(value_t) would have been called with the current value - type from @ref type(): - - Value type | initial value - ----------- | ------------- - null | `null` - boolean | `false` - string | `""` - number | `0` - binary | An empty byte vector - object | `{}` - array | `[]` - - @post Has the same effect as calling - @code {.cpp} - *this = basic_json(type()); - @endcode - - @liveexample{The example below shows the effect of `clear()` to different - JSON types.,clear} - - @complexity Linear in the size of the JSON value. - - @iterators All iterators, pointers and references related to this container - are invalidated. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @sa see @ref basic_json(value_t) -- constructor that creates an object with the - same value than calling `clear()` - - @since version 1.0.0 - */ - void clear() noexcept - { - switch (m_type) - { - case value_t::number_integer: - { - m_value.number_integer = 0; - break; - } - - case value_t::number_unsigned: - { - m_value.number_unsigned = 0; - break; - } - - case value_t::number_float: - { - m_value.number_float = 0.0; - break; - } - - case value_t::boolean: - { - m_value.boolean = false; - break; - } - - case value_t::string: - { - m_value.string->clear(); - break; - } - - case value_t::binary: - { - m_value.binary->clear(); - break; - } - - case value_t::array: - { - m_value.array->clear(); - break; - } - - case value_t::object: - { - m_value.object->clear(); - break; - } - - case value_t::null: - case value_t::discarded: - default: - break; - } - } - - /*! - @brief add an object to an array - - Appends the given element @a val to the end of the JSON value. If the - function is called on a JSON null value, an empty array is created before - appending @a val. - - @param[in] val the value to add to the JSON array - - @throw type_error.308 when called on a type other than JSON array or - null; example: `"cannot use push_back() with number"` - - @complexity Amortized constant. - - @liveexample{The example shows how `push_back()` and `+=` can be used to - add elements to a JSON array. Note how the `null` value was silently - converted to a JSON array.,push_back} - - @since version 1.0.0 - */ - void push_back(basic_json&& val) - { - // push_back only works for null objects or arrays - if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) - { - JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); - } - - // transform null object into an array - if (is_null()) - { - m_type = value_t::array; - m_value = value_t::array; - assert_invariant(); - } - - // add element to array (move semantics) - const auto old_capacity = m_value.array->capacity(); - m_value.array->push_back(std::move(val)); - set_parent(m_value.array->back(), old_capacity); - // if val is moved from, basic_json move constructor marks it null so we do not call the destructor - } - - /*! - @brief add an object to an array - @copydoc push_back(basic_json&&) - */ - reference operator+=(basic_json&& val) - { - push_back(std::move(val)); - return *this; - } - - /*! - @brief add an object to an array - @copydoc push_back(basic_json&&) - */ - void push_back(const basic_json& val) - { - // push_back only works for null objects or arrays - if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) - { - JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); - } - - // transform null object into an array - if (is_null()) - { - m_type = value_t::array; - m_value = value_t::array; - assert_invariant(); - } - - // add element to array - const auto old_capacity = m_value.array->capacity(); - m_value.array->push_back(val); - set_parent(m_value.array->back(), old_capacity); - } - - /*! - @brief add an object to an array - @copydoc push_back(basic_json&&) - */ - reference operator+=(const basic_json& val) - { - push_back(val); - return *this; - } - - /*! - @brief add an object to an object - - Inserts the given element @a val to the JSON object. If the function is - called on a JSON null value, an empty object is created before inserting - @a val. - - @param[in] val the value to add to the JSON object - - @throw type_error.308 when called on a type other than JSON object or - null; example: `"cannot use push_back() with number"` - - @complexity Logarithmic in the size of the container, O(log(`size()`)). - - @liveexample{The example shows how `push_back()` and `+=` can be used to - add elements to a JSON object. Note how the `null` value was silently - converted to a JSON object.,push_back__object_t__value} - - @since version 1.0.0 - */ - void push_back(const typename object_t::value_type& val) - { - // push_back only works for null objects or objects - if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object()))) - { - JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); - } - - // transform null object into an object - if (is_null()) - { - m_type = value_t::object; - m_value = value_t::object; - assert_invariant(); - } - - // add element to object - auto res = m_value.object->insert(val); - set_parent(res.first->second); - } - - /*! - @brief add an object to an object - @copydoc push_back(const typename object_t::value_type&) - */ - reference operator+=(const typename object_t::value_type& val) - { - push_back(val); - return *this; - } - - /*! - @brief add an object to an object - - This function allows to use `push_back` with an initializer list. In case - - 1. the current value is an object, - 2. the initializer list @a init contains only two elements, and - 3. the first element of @a init is a string, - - @a init is converted into an object element and added using - @ref push_back(const typename object_t::value_type&). Otherwise, @a init - is converted to a JSON value and added using @ref push_back(basic_json&&). - - @param[in] init an initializer list - - @complexity Linear in the size of the initializer list @a init. - - @note This function is required to resolve an ambiguous overload error, - because pairs like `{"key", "value"}` can be both interpreted as - `object_t::value_type` or `std::initializer_list`, see - https://github.com/nlohmann/json/issues/235 for more information. - - @liveexample{The example shows how initializer lists are treated as - objects when possible.,push_back__initializer_list} - */ - void push_back(initializer_list_t init) - { - if (is_object() && init.size() == 2 && (*init.begin())->is_string()) - { - basic_json&& key = init.begin()->moved_or_copied(); - push_back(typename object_t::value_type( - std::move(key.get_ref()), (init.begin() + 1)->moved_or_copied())); - } - else - { - push_back(basic_json(init)); - } - } - - /*! - @brief add an object to an object - @copydoc push_back(initializer_list_t) - */ - reference operator+=(initializer_list_t init) - { - push_back(init); - return *this; - } - - /*! - @brief add an object to an array - - Creates a JSON value from the passed parameters @a args to the end of the - JSON value. If the function is called on a JSON null value, an empty array - is created before appending the value created from @a args. - - @param[in] args arguments to forward to a constructor of @ref basic_json - @tparam Args compatible types to create a @ref basic_json object - - @return reference to the inserted element - - @throw type_error.311 when called on a type other than JSON array or - null; example: `"cannot use emplace_back() with number"` - - @complexity Amortized constant. - - @liveexample{The example shows how `push_back()` can be used to add - elements to a JSON array. Note how the `null` value was silently converted - to a JSON array.,emplace_back} - - @since version 2.0.8, returns reference since 3.7.0 - */ - template - reference emplace_back(Args&& ... args) - { - // emplace_back only works for null objects or arrays - if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) - { - JSON_THROW(type_error::create(311, "cannot use emplace_back() with " + std::string(type_name()), *this)); - } - - // transform null object into an array - if (is_null()) - { - m_type = value_t::array; - m_value = value_t::array; - assert_invariant(); - } - - // add element to array (perfect forwarding) - const auto old_capacity = m_value.array->capacity(); - m_value.array->emplace_back(std::forward(args)...); - return set_parent(m_value.array->back(), old_capacity); - } - - /*! - @brief add an object to an object if key does not exist - - Inserts a new element into a JSON object constructed in-place with the - given @a args if there is no element with the key in the container. If the - function is called on a JSON null value, an empty object is created before - appending the value created from @a args. - - @param[in] args arguments to forward to a constructor of @ref basic_json - @tparam Args compatible types to create a @ref basic_json object - - @return a pair consisting of an iterator to the inserted element, or the - already-existing element if no insertion happened, and a bool - denoting whether the insertion took place. - - @throw type_error.311 when called on a type other than JSON object or - null; example: `"cannot use emplace() with number"` - - @complexity Logarithmic in the size of the container, O(log(`size()`)). - - @liveexample{The example shows how `emplace()` can be used to add elements - to a JSON object. Note how the `null` value was silently converted to a - JSON object. Further note how no value is added if there was already one - value stored with the same key.,emplace} - - @since version 2.0.8 - */ - template - std::pair emplace(Args&& ... args) - { - // emplace only works for null objects or arrays - if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object()))) - { - JSON_THROW(type_error::create(311, "cannot use emplace() with " + std::string(type_name()), *this)); - } - - // transform null object into an object - if (is_null()) - { - m_type = value_t::object; - m_value = value_t::object; - assert_invariant(); - } - - // add element to array (perfect forwarding) - auto res = m_value.object->emplace(std::forward(args)...); - set_parent(res.first->second); - - // create result iterator and set iterator to the result of emplace - auto it = begin(); - it.m_it.object_iterator = res.first; - - // return pair of iterator and boolean - return {it, res.second}; - } - - /// Helper for insertion of an iterator - /// @note: This uses std::distance to support GCC 4.8, - /// see https://github.com/nlohmann/json/pull/1257 - template - iterator insert_iterator(const_iterator pos, Args&& ... args) - { - iterator result(this); - JSON_ASSERT(m_value.array != nullptr); - - auto insert_pos = std::distance(m_value.array->begin(), pos.m_it.array_iterator); - m_value.array->insert(pos.m_it.array_iterator, std::forward(args)...); - result.m_it.array_iterator = m_value.array->begin() + insert_pos; - - // This could have been written as: - // result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val); - // but the return value of insert is missing in GCC 4.8, so it is written this way instead. - - set_parents(); - return result; - } - - /*! - @brief inserts element - - Inserts element @a val before iterator @a pos. - - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] val element to insert - @return iterator pointing to the inserted @a val. - - @throw type_error.309 if called on JSON values other than arrays; - example: `"cannot use insert() with string"` - @throw invalid_iterator.202 if @a pos is not an iterator of *this; - example: `"iterator does not fit current value"` - - @complexity Constant plus linear in the distance between @a pos and end of - the container. - - @liveexample{The example shows how `insert()` is used.,insert} - - @since version 1.0.0 - */ - iterator insert(const_iterator pos, const basic_json& val) - { - // insert only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - // check if iterator pos fits to this JSON value - if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) - { - JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); - } - - // insert to array and return iterator - return insert_iterator(pos, val); - } - - JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); - } - - /*! - @brief inserts element - @copydoc insert(const_iterator, const basic_json&) - */ - iterator insert(const_iterator pos, basic_json&& val) - { - return insert(pos, val); - } - - /*! - @brief inserts elements - - Inserts @a cnt copies of @a val before iterator @a pos. - - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] cnt number of copies of @a val to insert - @param[in] val element to insert - @return iterator pointing to the first element inserted, or @a pos if - `cnt==0` - - @throw type_error.309 if called on JSON values other than arrays; example: - `"cannot use insert() with string"` - @throw invalid_iterator.202 if @a pos is not an iterator of *this; - example: `"iterator does not fit current value"` - - @complexity Linear in @a cnt plus linear in the distance between @a pos - and end of the container. - - @liveexample{The example shows how `insert()` is used.,insert__count} - - @since version 1.0.0 - */ - iterator insert(const_iterator pos, size_type cnt, const basic_json& val) - { - // insert only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - // check if iterator pos fits to this JSON value - if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) - { - JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); - } - - // insert to array and return iterator - return insert_iterator(pos, cnt, val); - } - - JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); - } - - /*! - @brief inserts elements - - Inserts elements from range `[first, last)` before iterator @a pos. - - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] first begin of the range of elements to insert - @param[in] last end of the range of elements to insert - - @throw type_error.309 if called on JSON values other than arrays; example: - `"cannot use insert() with string"` - @throw invalid_iterator.202 if @a pos is not an iterator of *this; - example: `"iterator does not fit current value"` - @throw invalid_iterator.210 if @a first and @a last do not belong to the - same JSON value; example: `"iterators do not fit"` - @throw invalid_iterator.211 if @a first or @a last are iterators into - container for which insert is called; example: `"passed iterators may not - belong to container"` - - @return iterator pointing to the first element inserted, or @a pos if - `first==last` - - @complexity Linear in `std::distance(first, last)` plus linear in the - distance between @a pos and end of the container. - - @liveexample{The example shows how `insert()` is used.,insert__range} - - @since version 1.0.0 - */ - iterator insert(const_iterator pos, const_iterator first, const_iterator last) - { - // insert only works for arrays - if (JSON_HEDLEY_UNLIKELY(!is_array())) - { - JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); - } - - // check if iterator pos fits to this JSON value - if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) - { - JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); - } - - // check if range iterators belong to the same JSON object - if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) - { - JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); - } - - if (JSON_HEDLEY_UNLIKELY(first.m_object == this)) - { - JSON_THROW(invalid_iterator::create(211, "passed iterators may not belong to container", *this)); - } - - // insert to array and return iterator - return insert_iterator(pos, first.m_it.array_iterator, last.m_it.array_iterator); - } - - /*! - @brief inserts elements - - Inserts elements from initializer list @a ilist before iterator @a pos. - - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] ilist initializer list to insert the values from - - @throw type_error.309 if called on JSON values other than arrays; example: - `"cannot use insert() with string"` - @throw invalid_iterator.202 if @a pos is not an iterator of *this; - example: `"iterator does not fit current value"` - - @return iterator pointing to the first element inserted, or @a pos if - `ilist` is empty - - @complexity Linear in `ilist.size()` plus linear in the distance between - @a pos and end of the container. - - @liveexample{The example shows how `insert()` is used.,insert__ilist} - - @since version 1.0.0 - */ - iterator insert(const_iterator pos, initializer_list_t ilist) - { - // insert only works for arrays - if (JSON_HEDLEY_UNLIKELY(!is_array())) - { - JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); - } - - // check if iterator pos fits to this JSON value - if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) - { - JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); - } - - // insert to array and return iterator - return insert_iterator(pos, ilist.begin(), ilist.end()); - } - - /*! - @brief inserts elements - - Inserts elements from range `[first, last)`. - - @param[in] first begin of the range of elements to insert - @param[in] last end of the range of elements to insert - - @throw type_error.309 if called on JSON values other than objects; example: - `"cannot use insert() with string"` - @throw invalid_iterator.202 if iterator @a first or @a last does does not - point to an object; example: `"iterators first and last must point to - objects"` - @throw invalid_iterator.210 if @a first and @a last do not belong to the - same JSON value; example: `"iterators do not fit"` - - @complexity Logarithmic: `O(N*log(size() + N))`, where `N` is the number - of elements to insert. - - @liveexample{The example shows how `insert()` is used.,insert__range_object} - - @since version 3.0.0 - */ - void insert(const_iterator first, const_iterator last) - { - // insert only works for objects - if (JSON_HEDLEY_UNLIKELY(!is_object())) - { - JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); - } - - // check if range iterators belong to the same JSON object - if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) - { - JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); - } - - // passed iterators must belong to objects - if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object())) - { - JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this)); - } - - m_value.object->insert(first.m_it.object_iterator, last.m_it.object_iterator); - } - - /*! - @brief updates a JSON object from another object, overwriting existing keys - - Inserts all values from JSON object @a j and overwrites existing keys. - - @param[in] j JSON object to read values from - - @throw type_error.312 if called on JSON values other than objects; example: - `"cannot use update() with string"` - - @complexity O(N*log(size() + N)), where N is the number of elements to - insert. - - @liveexample{The example shows how `update()` is used.,update} - - @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update - - @since version 3.0.0 - */ - void update(const_reference j) - { - // implicitly convert null value to an empty object - if (is_null()) - { - m_type = value_t::object; - m_value.object = create(); - assert_invariant(); - } - - if (JSON_HEDLEY_UNLIKELY(!is_object())) - { - JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this)); - } - if (JSON_HEDLEY_UNLIKELY(!j.is_object())) - { - JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(j.type_name()), *this)); - } - - for (auto it = j.cbegin(); it != j.cend(); ++it) - { - m_value.object->operator[](it.key()) = it.value(); - } - } - - /*! - @brief updates a JSON object from another object, overwriting existing keys - - Inserts all values from from range `[first, last)` and overwrites existing - keys. - - @param[in] first begin of the range of elements to insert - @param[in] last end of the range of elements to insert - - @throw type_error.312 if called on JSON values other than objects; example: - `"cannot use update() with string"` - @throw invalid_iterator.202 if iterator @a first or @a last does does not - point to an object; example: `"iterators first and last must point to - objects"` - @throw invalid_iterator.210 if @a first and @a last do not belong to the - same JSON value; example: `"iterators do not fit"` - - @complexity O(N*log(size() + N)), where N is the number of elements to - insert. - - @liveexample{The example shows how `update()` is used__range.,update} - - @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update - - @since version 3.0.0 - */ - void update(const_iterator first, const_iterator last) - { - // implicitly convert null value to an empty object - if (is_null()) - { - m_type = value_t::object; - m_value.object = create(); - assert_invariant(); - } - - if (JSON_HEDLEY_UNLIKELY(!is_object())) - { - JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this)); - } - - // check if range iterators belong to the same JSON object - if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) - { - JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); - } - - // passed iterators must belong to objects - if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object() - || !last.m_object->is_object())) - { - JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this)); - } - - for (auto it = first; it != last; ++it) - { - m_value.object->operator[](it.key()) = it.value(); - } - } - - /*! - @brief exchanges the values - - Exchanges the contents of the JSON value with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other JSON value to exchange the contents with - - @complexity Constant. - - @liveexample{The example below shows how JSON values can be swapped with - `swap()`.,swap__reference} - - @since version 1.0.0 - */ - void swap(reference other) noexcept ( - std::is_nothrow_move_constructible::value&& - std::is_nothrow_move_assignable::value&& - std::is_nothrow_move_constructible::value&& - std::is_nothrow_move_assignable::value - ) - { - std::swap(m_type, other.m_type); - std::swap(m_value, other.m_value); - - set_parents(); - other.set_parents(); - assert_invariant(); - } - - /*! - @brief exchanges the values - - Exchanges the contents of the JSON value from @a left with those of @a right. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. implemented as a friend function callable via ADL. - - @param[in,out] left JSON value to exchange the contents with - @param[in,out] right JSON value to exchange the contents with - - @complexity Constant. - - @liveexample{The example below shows how JSON values can be swapped with - `swap()`.,swap__reference} - - @since version 1.0.0 - */ - friend void swap(reference left, reference right) noexcept ( - std::is_nothrow_move_constructible::value&& - std::is_nothrow_move_assignable::value&& - std::is_nothrow_move_constructible::value&& - std::is_nothrow_move_assignable::value - ) - { - left.swap(right); - } - - /*! - @brief exchanges the values - - Exchanges the contents of a JSON array with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other array to exchange the contents with - - @throw type_error.310 when JSON value is not an array; example: `"cannot - use swap() with string"` - - @complexity Constant. - - @liveexample{The example below shows how arrays can be swapped with - `swap()`.,swap__array_t} - - @since version 1.0.0 - */ - void swap(array_t& other) // NOLINT(bugprone-exception-escape) - { - // swap only works for arrays - if (JSON_HEDLEY_LIKELY(is_array())) - { - std::swap(*(m_value.array), other); - } - else - { - JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief exchanges the values - - Exchanges the contents of a JSON object with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other object to exchange the contents with - - @throw type_error.310 when JSON value is not an object; example: - `"cannot use swap() with string"` - - @complexity Constant. - - @liveexample{The example below shows how objects can be swapped with - `swap()`.,swap__object_t} - - @since version 1.0.0 - */ - void swap(object_t& other) // NOLINT(bugprone-exception-escape) - { - // swap only works for objects - if (JSON_HEDLEY_LIKELY(is_object())) - { - std::swap(*(m_value.object), other); - } - else - { - JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief exchanges the values - - Exchanges the contents of a JSON string with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other string to exchange the contents with - - @throw type_error.310 when JSON value is not a string; example: `"cannot - use swap() with boolean"` - - @complexity Constant. - - @liveexample{The example below shows how strings can be swapped with - `swap()`.,swap__string_t} - - @since version 1.0.0 - */ - void swap(string_t& other) // NOLINT(bugprone-exception-escape) - { - // swap only works for strings - if (JSON_HEDLEY_LIKELY(is_string())) - { - std::swap(*(m_value.string), other); - } - else - { - JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); - } - } - - /*! - @brief exchanges the values - - Exchanges the contents of a JSON string with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other binary to exchange the contents with - - @throw type_error.310 when JSON value is not a string; example: `"cannot - use swap() with boolean"` - - @complexity Constant. - - @liveexample{The example below shows how strings can be swapped with - `swap()`.,swap__binary_t} - - @since version 3.8.0 - */ - void swap(binary_t& other) // NOLINT(bugprone-exception-escape) - { - // swap only works for strings - if (JSON_HEDLEY_LIKELY(is_binary())) - { - std::swap(*(m_value.binary), other); - } - else - { - JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); - } - } - - /// @copydoc swap(binary_t&) - void swap(typename binary_t::container_type& other) // NOLINT(bugprone-exception-escape) - { - // swap only works for strings - if (JSON_HEDLEY_LIKELY(is_binary())) - { - std::swap(*(m_value.binary), other); - } - else - { - JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); - } - } - - /// @} - - public: - ////////////////////////////////////////// - // lexicographical comparison operators // - ////////////////////////////////////////// - - /// @name lexicographical comparison operators - /// @{ - - /*! - @brief comparison: equal - - Compares two JSON values for equality according to the following rules: - - Two JSON values are equal if (1) they are from the same type and (2) - their stored values are the same according to their respective - `operator==`. - - Integer and floating-point numbers are automatically converted before - comparison. Note that two NaN values are always treated as unequal. - - Two JSON null values are equal. - - @note Floating-point inside JSON values numbers are compared with - `json::number_float_t::operator==` which is `double::operator==` by - default. To compare floating-point while respecting an epsilon, an alternative - [comparison function](https://github.com/mariokonrad/marnav/blob/master/include/marnav/math/floatingpoint.hpp#L34-#L39) - could be used, for instance - @code {.cpp} - template::value, T>::type> - inline bool is_same(T a, T b, T epsilon = std::numeric_limits::epsilon()) noexcept - { - return std::abs(a - b) <= epsilon; - } - @endcode - Or you can self-defined operator equal function like this: - @code {.cpp} - bool my_equal(const_reference lhs, const_reference rhs) { - const auto lhs_type lhs.type(); - const auto rhs_type rhs.type(); - if (lhs_type == rhs_type) { - switch(lhs_type) - // self_defined case - case value_t::number_float: - return std::abs(lhs - rhs) <= std::numeric_limits::epsilon(); - // other cases remain the same with the original - ... - } - ... - } - @endcode - - @note NaN values never compare equal to themselves or to other NaN values. - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether the values @a lhs and @a rhs are equal - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @complexity Linear. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__equal} - - @since version 1.0.0 - */ - friend bool operator==(const_reference lhs, const_reference rhs) noexcept - { -#ifdef __GNUC__ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wfloat-equal" -#endif - const auto lhs_type = lhs.type(); - const auto rhs_type = rhs.type(); - - if (lhs_type == rhs_type) - { - switch (lhs_type) - { - case value_t::array: - return *lhs.m_value.array == *rhs.m_value.array; - - case value_t::object: - return *lhs.m_value.object == *rhs.m_value.object; - - case value_t::null: - return true; - - case value_t::string: - return *lhs.m_value.string == *rhs.m_value.string; - - case value_t::boolean: - return lhs.m_value.boolean == rhs.m_value.boolean; - - case value_t::number_integer: - return lhs.m_value.number_integer == rhs.m_value.number_integer; - - case value_t::number_unsigned: - return lhs.m_value.number_unsigned == rhs.m_value.number_unsigned; - - case value_t::number_float: - return lhs.m_value.number_float == rhs.m_value.number_float; - - case value_t::binary: - return *lhs.m_value.binary == *rhs.m_value.binary; - - case value_t::discarded: - default: - return false; - } - } - else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_integer) == rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer) - { - return lhs.m_value.number_float == static_cast(rhs.m_value.number_integer); - } - else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_float == static_cast(rhs.m_value.number_unsigned); - } - else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer) - { - return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_integer; - } - else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_integer == static_cast(rhs.m_value.number_unsigned); - } - - return false; -#ifdef __GNUC__ -#pragma GCC diagnostic pop -#endif - } - - /*! - @brief comparison: equal - @copydoc operator==(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator==(const_reference lhs, ScalarType rhs) noexcept - { - return lhs == basic_json(rhs); - } - - /*! - @brief comparison: equal - @copydoc operator==(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator==(ScalarType lhs, const_reference rhs) noexcept - { - return basic_json(lhs) == rhs; - } - - /*! - @brief comparison: not equal - - Compares two JSON values for inequality by calculating `not (lhs == rhs)`. - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether the values @a lhs and @a rhs are not equal - - @complexity Linear. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__notequal} - - @since version 1.0.0 - */ - friend bool operator!=(const_reference lhs, const_reference rhs) noexcept - { - return !(lhs == rhs); - } - - /*! - @brief comparison: not equal - @copydoc operator!=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator!=(const_reference lhs, ScalarType rhs) noexcept - { - return lhs != basic_json(rhs); - } - - /*! - @brief comparison: not equal - @copydoc operator!=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator!=(ScalarType lhs, const_reference rhs) noexcept - { - return basic_json(lhs) != rhs; - } - - /*! - @brief comparison: less than - - Compares whether one JSON value @a lhs is less than another JSON value @a - rhs according to the following rules: - - If @a lhs and @a rhs have the same type, the values are compared using - the default `<` operator. - - Integer and floating-point numbers are automatically converted before - comparison - - In case @a lhs and @a rhs have different types, the values are ignored - and the order of the types is considered, see - @ref operator<(const value_t, const value_t). - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is less than @a rhs - - @complexity Linear. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__less} - - @since version 1.0.0 - */ - friend bool operator<(const_reference lhs, const_reference rhs) noexcept - { - const auto lhs_type = lhs.type(); - const auto rhs_type = rhs.type(); - - if (lhs_type == rhs_type) - { - switch (lhs_type) - { - case value_t::array: - // note parentheses are necessary, see - // https://github.com/nlohmann/json/issues/1530 - return (*lhs.m_value.array) < (*rhs.m_value.array); - - case value_t::object: - return (*lhs.m_value.object) < (*rhs.m_value.object); - - case value_t::null: - return false; - - case value_t::string: - return (*lhs.m_value.string) < (*rhs.m_value.string); - - case value_t::boolean: - return (lhs.m_value.boolean) < (rhs.m_value.boolean); - - case value_t::number_integer: - return (lhs.m_value.number_integer) < (rhs.m_value.number_integer); - - case value_t::number_unsigned: - return (lhs.m_value.number_unsigned) < (rhs.m_value.number_unsigned); - - case value_t::number_float: - return (lhs.m_value.number_float) < (rhs.m_value.number_float); - - case value_t::binary: - return (*lhs.m_value.binary) < (*rhs.m_value.binary); - - case value_t::discarded: - default: - return false; - } - } - else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_integer) < rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer) - { - return lhs.m_value.number_float < static_cast(rhs.m_value.number_integer); - } - else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_float < static_cast(rhs.m_value.number_unsigned); - } - else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_integer < static_cast(rhs.m_value.number_unsigned); - } - else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer) - { - return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_integer; - } - - // We only reach this line if we cannot compare values. In that case, - // we compare types. Note we have to call the operator explicitly, - // because MSVC has problems otherwise. - return operator<(lhs_type, rhs_type); - } - - /*! - @brief comparison: less than - @copydoc operator<(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator<(const_reference lhs, ScalarType rhs) noexcept - { - return lhs < basic_json(rhs); - } - - /*! - @brief comparison: less than - @copydoc operator<(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator<(ScalarType lhs, const_reference rhs) noexcept - { - return basic_json(lhs) < rhs; - } - - /*! - @brief comparison: less than or equal - - Compares whether one JSON value @a lhs is less than or equal to another - JSON value by calculating `not (rhs < lhs)`. - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is less than or equal to @a rhs - - @complexity Linear. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__greater} - - @since version 1.0.0 - */ - friend bool operator<=(const_reference lhs, const_reference rhs) noexcept - { - return !(rhs < lhs); - } - - /*! - @brief comparison: less than or equal - @copydoc operator<=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator<=(const_reference lhs, ScalarType rhs) noexcept - { - return lhs <= basic_json(rhs); - } - - /*! - @brief comparison: less than or equal - @copydoc operator<=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator<=(ScalarType lhs, const_reference rhs) noexcept - { - return basic_json(lhs) <= rhs; - } - - /*! - @brief comparison: greater than - - Compares whether one JSON value @a lhs is greater than another - JSON value by calculating `not (lhs <= rhs)`. - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is greater than to @a rhs - - @complexity Linear. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__lessequal} - - @since version 1.0.0 - */ - friend bool operator>(const_reference lhs, const_reference rhs) noexcept - { - return !(lhs <= rhs); - } - - /*! - @brief comparison: greater than - @copydoc operator>(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator>(const_reference lhs, ScalarType rhs) noexcept - { - return lhs > basic_json(rhs); - } - - /*! - @brief comparison: greater than - @copydoc operator>(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator>(ScalarType lhs, const_reference rhs) noexcept - { - return basic_json(lhs) > rhs; - } - - /*! - @brief comparison: greater than or equal - - Compares whether one JSON value @a lhs is greater than or equal to another - JSON value by calculating `not (lhs < rhs)`. - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is greater than or equal to @a rhs - - @complexity Linear. - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__greaterequal} - - @since version 1.0.0 - */ - friend bool operator>=(const_reference lhs, const_reference rhs) noexcept - { - return !(lhs < rhs); - } - - /*! - @brief comparison: greater than or equal - @copydoc operator>=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator>=(const_reference lhs, ScalarType rhs) noexcept - { - return lhs >= basic_json(rhs); - } - - /*! - @brief comparison: greater than or equal - @copydoc operator>=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator>=(ScalarType lhs, const_reference rhs) noexcept - { - return basic_json(lhs) >= rhs; - } - - /// @} - - /////////////////// - // serialization // - /////////////////// - - /// @name serialization - /// @{ -#ifndef JSON_NO_IO - /*! - @brief serialize to stream - - Serialize the given JSON value @a j to the output stream @a o. The JSON - value will be serialized using the @ref dump member function. - - - The indentation of the output can be controlled with the member variable - `width` of the output stream @a o. For instance, using the manipulator - `std::setw(4)` on @a o sets the indentation level to `4` and the - serialization result is the same as calling `dump(4)`. - - - The indentation character can be controlled with the member variable - `fill` of the output stream @a o. For instance, the manipulator - `std::setfill('\\t')` sets indentation to use a tab character rather than - the default space character. - - @param[in,out] o stream to serialize to - @param[in] j JSON value to serialize - - @return the stream @a o - - @throw type_error.316 if a string stored inside the JSON value is not - UTF-8 encoded - - @complexity Linear. - - @liveexample{The example below shows the serialization with different - parameters to `width` to adjust the indentation level.,operator_serialize} - - @since version 1.0.0; indentation character added in version 3.0.0 - */ - friend std::ostream& operator<<(std::ostream& o, const basic_json& j) - { - // read width member and use it as indentation parameter if nonzero - const bool pretty_print = o.width() > 0; - const auto indentation = pretty_print ? o.width() : 0; - - // reset width to 0 for subsequent calls to this stream - o.width(0); - - // do the actual serialization - serializer s(detail::output_adapter(o), o.fill()); - s.dump(j, pretty_print, false, static_cast(indentation)); - return o; - } - - /*! - @brief serialize to stream - @deprecated This stream operator is deprecated and will be removed in - future 4.0.0 of the library. Please use - @ref operator<<(std::ostream&, const basic_json&) - instead; that is, replace calls like `j >> o;` with `o << j;`. - @since version 1.0.0; deprecated since version 3.0.0 - */ - JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator<<(std::ostream&, const basic_json&)) - friend std::ostream& operator>>(const basic_json& j, std::ostream& o) - { - return o << j; - } -#endif // JSON_NO_IO - /// @} - - - ///////////////////// - // deserialization // - ///////////////////// - - /// @name deserialization - /// @{ - - /*! - @brief deserialize from a compatible input - - @tparam InputType A compatible input, for instance - - an std::istream object - - a FILE pointer - - a C-style array of characters - - a pointer to a null-terminated string of single byte characters - - an object obj for which begin(obj) and end(obj) produces a valid pair of - iterators. - - @param[in] i input to read from - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) - @param[in] allow_exceptions whether to throw exceptions in case of a - parse error (optional, true by default) - @param[in] ignore_comments whether comments should be ignored and treated - like whitespace (true) or yield a parse error (true); (optional, false by - default) - - @return deserialized JSON value; in case of a parse error and - @a allow_exceptions set to `false`, the return value will be - value_t::discarded. - - @throw parse_error.101 if a parse error occurs; example: `""unexpected end - of input; expected string literal""` - @throw parse_error.102 if to_unicode fails or surrogate error - @throw parse_error.103 if to_unicode fails - - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb or reading from the input @a i has a super-linear complexity. - - @note A UTF-8 byte order mark is silently ignored. - - @liveexample{The example below demonstrates the `parse()` function reading - from an array.,parse__array__parser_callback_t} - - @liveexample{The example below demonstrates the `parse()` function with - and without callback function.,parse__string__parser_callback_t} - - @liveexample{The example below demonstrates the `parse()` function with - and without callback function.,parse__istream__parser_callback_t} - - @liveexample{The example below demonstrates the `parse()` function reading - from a contiguous container.,parse__contiguouscontainer__parser_callback_t} - - @since version 2.0.3 (contiguous containers); version 3.9.0 allowed to - ignore comments. - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json parse(InputType&& i, - const parser_callback_t cb = nullptr, - const bool allow_exceptions = true, - const bool ignore_comments = false) - { - basic_json result; - parser(detail::input_adapter(std::forward(i)), cb, allow_exceptions, ignore_comments).parse(true, result); - return result; - } - - /*! - @brief deserialize from a pair of character iterators - - The value_type of the iterator must be a integral type with size of 1, 2 or - 4 bytes, which will be interpreted respectively as UTF-8, UTF-16 and UTF-32. - - @param[in] first iterator to start of character range - @param[in] last iterator to end of character range - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) - @param[in] allow_exceptions whether to throw exceptions in case of a - parse error (optional, true by default) - @param[in] ignore_comments whether comments should be ignored and treated - like whitespace (true) or yield a parse error (true); (optional, false by - default) - - @return deserialized JSON value; in case of a parse error and - @a allow_exceptions set to `false`, the return value will be - value_t::discarded. - - @throw parse_error.101 if a parse error occurs; example: `""unexpected end - of input; expected string literal""` - @throw parse_error.102 if to_unicode fails or surrogate error - @throw parse_error.103 if to_unicode fails - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json parse(IteratorType first, - IteratorType last, - const parser_callback_t cb = nullptr, - const bool allow_exceptions = true, - const bool ignore_comments = false) - { - basic_json result; - parser(detail::input_adapter(std::move(first), std::move(last)), cb, allow_exceptions, ignore_comments).parse(true, result); - return result; - } - - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, parse(ptr, ptr + len)) - static basic_json parse(detail::span_input_adapter&& i, - const parser_callback_t cb = nullptr, - const bool allow_exceptions = true, - const bool ignore_comments = false) - { - basic_json result; - parser(i.get(), cb, allow_exceptions, ignore_comments).parse(true, result); - return result; - } - - /*! - @brief check if the input is valid JSON - - Unlike the @ref parse(InputType&&, const parser_callback_t,const bool) - function, this function neither throws an exception in case of invalid JSON - input (i.e., a parse error) nor creates diagnostic information. - - @tparam InputType A compatible input, for instance - - an std::istream object - - a FILE pointer - - a C-style array of characters - - a pointer to a null-terminated string of single byte characters - - an object obj for which begin(obj) and end(obj) produces a valid pair of - iterators. - - @param[in] i input to read from - @param[in] ignore_comments whether comments should be ignored and treated - like whitespace (true) or yield a parse error (true); (optional, false by - default) - - @return Whether the input read from @a i is valid JSON. - - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. - - @note A UTF-8 byte order mark is silently ignored. - - @liveexample{The example below demonstrates the `accept()` function reading - from a string.,accept__string} - */ - template - static bool accept(InputType&& i, - const bool ignore_comments = false) - { - return parser(detail::input_adapter(std::forward(i)), nullptr, false, ignore_comments).accept(true); - } - - template - static bool accept(IteratorType first, IteratorType last, - const bool ignore_comments = false) - { - return parser(detail::input_adapter(std::move(first), std::move(last)), nullptr, false, ignore_comments).accept(true); - } - - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, accept(ptr, ptr + len)) - static bool accept(detail::span_input_adapter&& i, - const bool ignore_comments = false) - { - return parser(i.get(), nullptr, false, ignore_comments).accept(true); - } - - /*! - @brief generate SAX events - - The SAX event lister must follow the interface of @ref json_sax. - - This function reads from a compatible input. Examples are: - - an std::istream object - - a FILE pointer - - a C-style array of characters - - a pointer to a null-terminated string of single byte characters - - an object obj for which begin(obj) and end(obj) produces a valid pair of - iterators. - - @param[in] i input to read from - @param[in,out] sax SAX event listener - @param[in] format the format to parse (JSON, CBOR, MessagePack, or UBJSON) - @param[in] strict whether the input has to be consumed completely - @param[in] ignore_comments whether comments should be ignored and treated - like whitespace (true) or yield a parse error (true); (optional, false by - default); only applies to the JSON file format. - - @return return value of the last processed SAX event - - @throw parse_error.101 if a parse error occurs; example: `""unexpected end - of input; expected string literal""` - @throw parse_error.102 if to_unicode fails or surrogate error - @throw parse_error.103 if to_unicode fails - - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the SAX consumer @a sax has - a super-linear complexity. - - @note A UTF-8 byte order mark is silently ignored. - - @liveexample{The example below demonstrates the `sax_parse()` function - reading from string and processing the events with a user-defined SAX - event consumer.,sax_parse} - - @since version 3.2.0 - */ - template - JSON_HEDLEY_NON_NULL(2) - static bool sax_parse(InputType&& i, SAX* sax, - input_format_t format = input_format_t::json, - const bool strict = true, - const bool ignore_comments = false) - { - auto ia = detail::input_adapter(std::forward(i)); - return format == input_format_t::json - ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) - : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); - } - - template - JSON_HEDLEY_NON_NULL(3) - static bool sax_parse(IteratorType first, IteratorType last, SAX* sax, - input_format_t format = input_format_t::json, - const bool strict = true, - const bool ignore_comments = false) - { - auto ia = detail::input_adapter(std::move(first), std::move(last)); - return format == input_format_t::json - ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) - : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); - } - - template - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, sax_parse(ptr, ptr + len, ...)) - JSON_HEDLEY_NON_NULL(2) - static bool sax_parse(detail::span_input_adapter&& i, SAX* sax, - input_format_t format = input_format_t::json, - const bool strict = true, - const bool ignore_comments = false) - { - auto ia = i.get(); - return format == input_format_t::json - // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) - ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) - // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) - : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); - } -#ifndef JSON_NO_IO - /*! - @brief deserialize from stream - @deprecated This stream operator is deprecated and will be removed in - version 4.0.0 of the library. Please use - @ref operator>>(std::istream&, basic_json&) - instead; that is, replace calls like `j << i;` with `i >> j;`. - @since version 1.0.0; deprecated since version 3.0.0 - */ - JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator>>(std::istream&, basic_json&)) - friend std::istream& operator<<(basic_json& j, std::istream& i) - { - return operator>>(i, j); - } - - /*! - @brief deserialize from stream - - Deserializes an input stream to a JSON value. - - @param[in,out] i input stream to read a serialized JSON value from - @param[in,out] j JSON value to write the deserialized input to - - @throw parse_error.101 in case of an unexpected token - @throw parse_error.102 if to_unicode fails or surrogate error - @throw parse_error.103 if to_unicode fails - - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. - - @note A UTF-8 byte order mark is silently ignored. - - @liveexample{The example below shows how a JSON value is constructed by - reading a serialization from a stream.,operator_deserialize} - - @sa parse(std::istream&, const parser_callback_t) for a variant with a - parser callback function to filter values while parsing - - @since version 1.0.0 - */ - friend std::istream& operator>>(std::istream& i, basic_json& j) - { - parser(detail::input_adapter(i)).parse(false, j); - return i; - } -#endif // JSON_NO_IO - /// @} - - /////////////////////////// - // convenience functions // - /////////////////////////// - - /*! - @brief return the type as string - - Returns the type name as string to be used in error messages - usually to - indicate that a function was called on a wrong JSON type. - - @return a string representation of a the @a m_type member: - Value type | return value - ----------- | ------------- - null | `"null"` - boolean | `"boolean"` - string | `"string"` - number | `"number"` (for all number types) - object | `"object"` - array | `"array"` - binary | `"binary"` - discarded | `"discarded"` - - @exceptionsafety No-throw guarantee: this function never throws exceptions. - - @complexity Constant. - - @liveexample{The following code exemplifies `type_name()` for all JSON - types.,type_name} - - @sa see @ref type() -- return the type of the JSON value - @sa see @ref operator value_t() -- return the type of the JSON value (implicit) - - @since version 1.0.0, public since 2.1.0, `const char*` and `noexcept` - since 3.0.0 - */ - JSON_HEDLEY_RETURNS_NON_NULL - const char* type_name() const noexcept - { - { - switch (m_type) - { - case value_t::null: - return "null"; - case value_t::object: - return "object"; - case value_t::array: - return "array"; - case value_t::string: - return "string"; - case value_t::boolean: - return "boolean"; - case value_t::binary: - return "binary"; - case value_t::discarded: - return "discarded"; - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - default: - return "number"; - } - } - } - - - JSON_PRIVATE_UNLESS_TESTED: - ////////////////////// - // member variables // - ////////////////////// - - /// the type of the current element - value_t m_type = value_t::null; - - /// the value of the current element - json_value m_value = {}; - -#if JSON_DIAGNOSTICS - /// a pointer to a parent value (for debugging purposes) - basic_json* m_parent = nullptr; -#endif - - ////////////////////////////////////////// - // binary serialization/deserialization // - ////////////////////////////////////////// - - /// @name binary serialization/deserialization support - /// @{ - - public: - /*! - @brief create a CBOR serialization of a given JSON value - - Serializes a given JSON value @a j to a byte vector using the CBOR (Concise - Binary Object Representation) serialization format. CBOR is a binary - serialization format which aims to be more compact than JSON itself, yet - more efficient to parse. - - The library uses the following mapping from JSON values types to - CBOR types according to the CBOR specification (RFC 7049): - - JSON value type | value/range | CBOR type | first byte - --------------- | ------------------------------------------ | ---------------------------------- | --------------- - null | `null` | Null | 0xF6 - boolean | `true` | True | 0xF5 - boolean | `false` | False | 0xF4 - number_integer | -9223372036854775808..-2147483649 | Negative integer (8 bytes follow) | 0x3B - number_integer | -2147483648..-32769 | Negative integer (4 bytes follow) | 0x3A - number_integer | -32768..-129 | Negative integer (2 bytes follow) | 0x39 - number_integer | -128..-25 | Negative integer (1 byte follow) | 0x38 - number_integer | -24..-1 | Negative integer | 0x20..0x37 - number_integer | 0..23 | Integer | 0x00..0x17 - number_integer | 24..255 | Unsigned integer (1 byte follow) | 0x18 - number_integer | 256..65535 | Unsigned integer (2 bytes follow) | 0x19 - number_integer | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A - number_integer | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B - number_unsigned | 0..23 | Integer | 0x00..0x17 - number_unsigned | 24..255 | Unsigned integer (1 byte follow) | 0x18 - number_unsigned | 256..65535 | Unsigned integer (2 bytes follow) | 0x19 - number_unsigned | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A - number_unsigned | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B - number_float | *any value representable by a float* | Single-Precision Float | 0xFA - number_float | *any value NOT representable by a float* | Double-Precision Float | 0xFB - string | *length*: 0..23 | UTF-8 string | 0x60..0x77 - string | *length*: 23..255 | UTF-8 string (1 byte follow) | 0x78 - string | *length*: 256..65535 | UTF-8 string (2 bytes follow) | 0x79 - string | *length*: 65536..4294967295 | UTF-8 string (4 bytes follow) | 0x7A - string | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow) | 0x7B - array | *size*: 0..23 | array | 0x80..0x97 - array | *size*: 23..255 | array (1 byte follow) | 0x98 - array | *size*: 256..65535 | array (2 bytes follow) | 0x99 - array | *size*: 65536..4294967295 | array (4 bytes follow) | 0x9A - array | *size*: 4294967296..18446744073709551615 | array (8 bytes follow) | 0x9B - object | *size*: 0..23 | map | 0xA0..0xB7 - object | *size*: 23..255 | map (1 byte follow) | 0xB8 - object | *size*: 256..65535 | map (2 bytes follow) | 0xB9 - object | *size*: 65536..4294967295 | map (4 bytes follow) | 0xBA - object | *size*: 4294967296..18446744073709551615 | map (8 bytes follow) | 0xBB - binary | *size*: 0..23 | byte string | 0x40..0x57 - binary | *size*: 23..255 | byte string (1 byte follow) | 0x58 - binary | *size*: 256..65535 | byte string (2 bytes follow) | 0x59 - binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A - binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B - - Binary values with subtype are mapped to tagged values (0xD8..0xDB) - depending on the subtype, followed by a byte string, see "binary" cells - in the table above. - - @note The mapping is **complete** in the sense that any JSON value type - can be converted to a CBOR value. - - @note If NaN or Infinity are stored inside a JSON number, they are - serialized properly. This behavior differs from the @ref dump() - function which serializes NaN or Infinity to `null`. - - @note The following CBOR types are not used in the conversion: - - UTF-8 strings terminated by "break" (0x7F) - - arrays terminated by "break" (0x9F) - - maps terminated by "break" (0xBF) - - byte strings terminated by "break" (0x5F) - - date/time (0xC0..0xC1) - - bignum (0xC2..0xC3) - - decimal fraction (0xC4) - - bigfloat (0xC5) - - expected conversions (0xD5..0xD7) - - simple values (0xE0..0xF3, 0xF8) - - undefined (0xF7) - - half-precision floats (0xF9) - - break (0xFF) - - @param[in] j JSON value to serialize - @return CBOR serialization as byte vector - - @complexity Linear in the size of the JSON value @a j. - - @liveexample{The example shows the serialization of a JSON value to a byte - vector in CBOR format.,to_cbor} - - @sa http://cbor.io - @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the - analogous deserialization - @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format - @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the - related UBJSON format - - @since version 2.0.9; compact representation of floating-point numbers - since version 3.8.0 - */ - static std::vector to_cbor(const basic_json& j) - { - std::vector result; - to_cbor(j, result); - return result; - } - - static void to_cbor(const basic_json& j, detail::output_adapter o) - { - binary_writer(o).write_cbor(j); - } - - static void to_cbor(const basic_json& j, detail::output_adapter o) - { - binary_writer(o).write_cbor(j); - } - - /*! - @brief create a MessagePack serialization of a given JSON value - - Serializes a given JSON value @a j to a byte vector using the MessagePack - serialization format. MessagePack is a binary serialization format which - aims to be more compact than JSON itself, yet more efficient to parse. - - The library uses the following mapping from JSON values types to - MessagePack types according to the MessagePack specification: - - JSON value type | value/range | MessagePack type | first byte - --------------- | --------------------------------- | ---------------- | ---------- - null | `null` | nil | 0xC0 - boolean | `true` | true | 0xC3 - boolean | `false` | false | 0xC2 - number_integer | -9223372036854775808..-2147483649 | int64 | 0xD3 - number_integer | -2147483648..-32769 | int32 | 0xD2 - number_integer | -32768..-129 | int16 | 0xD1 - number_integer | -128..-33 | int8 | 0xD0 - number_integer | -32..-1 | negative fixint | 0xE0..0xFF - number_integer | 0..127 | positive fixint | 0x00..0x7F - number_integer | 128..255 | uint 8 | 0xCC - number_integer | 256..65535 | uint 16 | 0xCD - number_integer | 65536..4294967295 | uint 32 | 0xCE - number_integer | 4294967296..18446744073709551615 | uint 64 | 0xCF - number_unsigned | 0..127 | positive fixint | 0x00..0x7F - number_unsigned | 128..255 | uint 8 | 0xCC - number_unsigned | 256..65535 | uint 16 | 0xCD - number_unsigned | 65536..4294967295 | uint 32 | 0xCE - number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF - number_float | *any value representable by a float* | float 32 | 0xCA - number_float | *any value NOT representable by a float* | float 64 | 0xCB - string | *length*: 0..31 | fixstr | 0xA0..0xBF - string | *length*: 32..255 | str 8 | 0xD9 - string | *length*: 256..65535 | str 16 | 0xDA - string | *length*: 65536..4294967295 | str 32 | 0xDB - array | *size*: 0..15 | fixarray | 0x90..0x9F - array | *size*: 16..65535 | array 16 | 0xDC - array | *size*: 65536..4294967295 | array 32 | 0xDD - object | *size*: 0..15 | fix map | 0x80..0x8F - object | *size*: 16..65535 | map 16 | 0xDE - object | *size*: 65536..4294967295 | map 32 | 0xDF - binary | *size*: 0..255 | bin 8 | 0xC4 - binary | *size*: 256..65535 | bin 16 | 0xC5 - binary | *size*: 65536..4294967295 | bin 32 | 0xC6 - - @note The mapping is **complete** in the sense that any JSON value type - can be converted to a MessagePack value. - - @note The following values can **not** be converted to a MessagePack value: - - strings with more than 4294967295 bytes - - byte strings with more than 4294967295 bytes - - arrays with more than 4294967295 elements - - objects with more than 4294967295 elements - - @note Any MessagePack output created @ref to_msgpack can be successfully - parsed by @ref from_msgpack. - - @note If NaN or Infinity are stored inside a JSON number, they are - serialized properly. This behavior differs from the @ref dump() - function which serializes NaN or Infinity to `null`. - - @param[in] j JSON value to serialize - @return MessagePack serialization as byte vector - - @complexity Linear in the size of the JSON value @a j. - - @liveexample{The example shows the serialization of a JSON value to a byte - vector in MessagePack format.,to_msgpack} - - @sa http://msgpack.org - @sa see @ref from_msgpack for the analogous deserialization - @sa see @ref to_cbor(const basic_json& for the related CBOR format - @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the - related UBJSON format - - @since version 2.0.9 - */ - static std::vector to_msgpack(const basic_json& j) - { - std::vector result; - to_msgpack(j, result); - return result; - } - - static void to_msgpack(const basic_json& j, detail::output_adapter o) - { - binary_writer(o).write_msgpack(j); - } - - static void to_msgpack(const basic_json& j, detail::output_adapter o) - { - binary_writer(o).write_msgpack(j); - } - - /*! - @brief create a UBJSON serialization of a given JSON value - - Serializes a given JSON value @a j to a byte vector using the UBJSON - (Universal Binary JSON) serialization format. UBJSON aims to be more compact - than JSON itself, yet more efficient to parse. - - The library uses the following mapping from JSON values types to - UBJSON types according to the UBJSON specification: - - JSON value type | value/range | UBJSON type | marker - --------------- | --------------------------------- | ----------- | ------ - null | `null` | null | `Z` - boolean | `true` | true | `T` - boolean | `false` | false | `F` - number_integer | -9223372036854775808..-2147483649 | int64 | `L` - number_integer | -2147483648..-32769 | int32 | `l` - number_integer | -32768..-129 | int16 | `I` - number_integer | -128..127 | int8 | `i` - number_integer | 128..255 | uint8 | `U` - number_integer | 256..32767 | int16 | `I` - number_integer | 32768..2147483647 | int32 | `l` - number_integer | 2147483648..9223372036854775807 | int64 | `L` - number_unsigned | 0..127 | int8 | `i` - number_unsigned | 128..255 | uint8 | `U` - number_unsigned | 256..32767 | int16 | `I` - number_unsigned | 32768..2147483647 | int32 | `l` - number_unsigned | 2147483648..9223372036854775807 | int64 | `L` - number_unsigned | 2147483649..18446744073709551615 | high-precision | `H` - number_float | *any value* | float64 | `D` - string | *with shortest length indicator* | string | `S` - array | *see notes on optimized format* | array | `[` - object | *see notes on optimized format* | map | `{` - - @note The mapping is **complete** in the sense that any JSON value type - can be converted to a UBJSON value. - - @note The following values can **not** be converted to a UBJSON value: - - strings with more than 9223372036854775807 bytes (theoretical) - - @note The following markers are not used in the conversion: - - `Z`: no-op values are not created. - - `C`: single-byte strings are serialized with `S` markers. - - @note Any UBJSON output created @ref to_ubjson can be successfully parsed - by @ref from_ubjson. - - @note If NaN or Infinity are stored inside a JSON number, they are - serialized properly. This behavior differs from the @ref dump() - function which serializes NaN or Infinity to `null`. - - @note The optimized formats for containers are supported: Parameter - @a use_size adds size information to the beginning of a container and - removes the closing marker. Parameter @a use_type further checks - whether all elements of a container have the same type and adds the - type marker to the beginning of the container. The @a use_type - parameter must only be used together with @a use_size = true. Note - that @a use_size = true alone may result in larger representations - - the benefit of this parameter is that the receiving side is - immediately informed on the number of elements of the container. - - @note If the JSON data contains the binary type, the value stored is a list - of integers, as suggested by the UBJSON documentation. In particular, - this means that serialization and the deserialization of a JSON - containing binary values into UBJSON and back will result in a - different JSON object. - - @param[in] j JSON value to serialize - @param[in] use_size whether to add size annotations to container types - @param[in] use_type whether to add type annotations to container types - (must be combined with @a use_size = true) - @return UBJSON serialization as byte vector - - @complexity Linear in the size of the JSON value @a j. - - @liveexample{The example shows the serialization of a JSON value to a byte - vector in UBJSON format.,to_ubjson} - - @sa http://ubjson.org - @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the - analogous deserialization - @sa see @ref to_cbor(const basic_json& for the related CBOR format - @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format - - @since version 3.1.0 - */ - static std::vector to_ubjson(const basic_json& j, - const bool use_size = false, - const bool use_type = false) - { - std::vector result; - to_ubjson(j, result, use_size, use_type); - return result; - } - - static void to_ubjson(const basic_json& j, detail::output_adapter o, - const bool use_size = false, const bool use_type = false) - { - binary_writer(o).write_ubjson(j, use_size, use_type); - } - - static void to_ubjson(const basic_json& j, detail::output_adapter o, - const bool use_size = false, const bool use_type = false) - { - binary_writer(o).write_ubjson(j, use_size, use_type); - } - - - /*! - @brief Serializes the given JSON object `j` to BSON and returns a vector - containing the corresponding BSON-representation. - - BSON (Binary JSON) is a binary format in which zero or more ordered key/value pairs are - stored as a single entity (a so-called document). - - The library uses the following mapping from JSON values types to BSON types: - - JSON value type | value/range | BSON type | marker - --------------- | --------------------------------- | ----------- | ------ - null | `null` | null | 0x0A - boolean | `true`, `false` | boolean | 0x08 - number_integer | -9223372036854775808..-2147483649 | int64 | 0x12 - number_integer | -2147483648..2147483647 | int32 | 0x10 - number_integer | 2147483648..9223372036854775807 | int64 | 0x12 - number_unsigned | 0..2147483647 | int32 | 0x10 - number_unsigned | 2147483648..9223372036854775807 | int64 | 0x12 - number_unsigned | 9223372036854775808..18446744073709551615| -- | -- - number_float | *any value* | double | 0x01 - string | *any value* | string | 0x02 - array | *any value* | document | 0x04 - object | *any value* | document | 0x03 - binary | *any value* | binary | 0x05 - - @warning The mapping is **incomplete**, since only JSON-objects (and things - contained therein) can be serialized to BSON. - Also, integers larger than 9223372036854775807 cannot be serialized to BSON, - and the keys may not contain U+0000, since they are serialized a - zero-terminated c-strings. - - @throw out_of_range.407 if `j.is_number_unsigned() && j.get() > 9223372036854775807` - @throw out_of_range.409 if a key in `j` contains a NULL (U+0000) - @throw type_error.317 if `!j.is_object()` - - @pre The input `j` is required to be an object: `j.is_object() == true`. - - @note Any BSON output created via @ref to_bson can be successfully parsed - by @ref from_bson. - - @param[in] j JSON value to serialize - @return BSON serialization as byte vector - - @complexity Linear in the size of the JSON value @a j. - - @liveexample{The example shows the serialization of a JSON value to a byte - vector in BSON format.,to_bson} - - @sa http://bsonspec.org/spec.html - @sa see @ref from_bson(detail::input_adapter&&, const bool strict) for the - analogous deserialization - @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the - related UBJSON format - @sa see @ref to_cbor(const basic_json&) for the related CBOR format - @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format - */ - static std::vector to_bson(const basic_json& j) - { - std::vector result; - to_bson(j, result); - return result; - } - - /*! - @brief Serializes the given JSON object `j` to BSON and forwards the - corresponding BSON-representation to the given output_adapter `o`. - @param j The JSON object to convert to BSON. - @param o The output adapter that receives the binary BSON representation. - @pre The input `j` shall be an object: `j.is_object() == true` - @sa see @ref to_bson(const basic_json&) - */ - static void to_bson(const basic_json& j, detail::output_adapter o) - { - binary_writer(o).write_bson(j); - } - - /*! - @copydoc to_bson(const basic_json&, detail::output_adapter) - */ - static void to_bson(const basic_json& j, detail::output_adapter o) - { - binary_writer(o).write_bson(j); - } - - - /*! - @brief create a JSON value from an input in CBOR format - - Deserializes a given input @a i to a JSON value using the CBOR (Concise - Binary Object Representation) serialization format. - - The library maps CBOR types to JSON value types as follows: - - CBOR type | JSON value type | first byte - ---------------------- | --------------- | ---------- - Integer | number_unsigned | 0x00..0x17 - Unsigned integer | number_unsigned | 0x18 - Unsigned integer | number_unsigned | 0x19 - Unsigned integer | number_unsigned | 0x1A - Unsigned integer | number_unsigned | 0x1B - Negative integer | number_integer | 0x20..0x37 - Negative integer | number_integer | 0x38 - Negative integer | number_integer | 0x39 - Negative integer | number_integer | 0x3A - Negative integer | number_integer | 0x3B - Byte string | binary | 0x40..0x57 - Byte string | binary | 0x58 - Byte string | binary | 0x59 - Byte string | binary | 0x5A - Byte string | binary | 0x5B - UTF-8 string | string | 0x60..0x77 - UTF-8 string | string | 0x78 - UTF-8 string | string | 0x79 - UTF-8 string | string | 0x7A - UTF-8 string | string | 0x7B - UTF-8 string | string | 0x7F - array | array | 0x80..0x97 - array | array | 0x98 - array | array | 0x99 - array | array | 0x9A - array | array | 0x9B - array | array | 0x9F - map | object | 0xA0..0xB7 - map | object | 0xB8 - map | object | 0xB9 - map | object | 0xBA - map | object | 0xBB - map | object | 0xBF - False | `false` | 0xF4 - True | `true` | 0xF5 - Null | `null` | 0xF6 - Half-Precision Float | number_float | 0xF9 - Single-Precision Float | number_float | 0xFA - Double-Precision Float | number_float | 0xFB - - @warning The mapping is **incomplete** in the sense that not all CBOR - types can be converted to a JSON value. The following CBOR types - are not supported and will yield parse errors (parse_error.112): - - date/time (0xC0..0xC1) - - bignum (0xC2..0xC3) - - decimal fraction (0xC4) - - bigfloat (0xC5) - - expected conversions (0xD5..0xD7) - - simple values (0xE0..0xF3, 0xF8) - - undefined (0xF7) - - @warning CBOR allows map keys of any type, whereas JSON only allows - strings as keys in object values. Therefore, CBOR maps with keys - other than UTF-8 strings are rejected (parse_error.113). - - @note Any CBOR output created @ref to_cbor can be successfully parsed by - @ref from_cbor. - - @param[in] i an input in CBOR format convertible to an input adapter - @param[in] strict whether to expect the input to be consumed until EOF - (true by default) - @param[in] allow_exceptions whether to throw exceptions in case of a - parse error (optional, true by default) - @param[in] tag_handler how to treat CBOR tags (optional, error by default) - - @return deserialized JSON value; in case of a parse error and - @a allow_exceptions set to `false`, the return value will be - value_t::discarded. - - @throw parse_error.110 if the given input ends prematurely or the end of - file was not reached when @a strict was set to true - @throw parse_error.112 if unsupported features from CBOR were - used in the given input @a v or if the input is not valid CBOR - @throw parse_error.113 if a string was expected as map key, but not found - - @complexity Linear in the size of the input @a i. - - @liveexample{The example shows the deserialization of a byte vector in CBOR - format to a JSON value.,from_cbor} - - @sa http://cbor.io - @sa see @ref to_cbor(const basic_json&) for the analogous serialization - @sa see @ref from_msgpack(InputType&&, const bool, const bool) for the - related MessagePack format - @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the - related UBJSON format - - @since version 2.0.9; parameter @a start_index since 2.1.1; changed to - consume input adapters, removed start_index parameter, and added - @a strict parameter since 3.0.0; added @a allow_exceptions parameter - since 3.2.0; added @a tag_handler parameter since 3.9.0. - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_cbor(InputType&& i, - const bool strict = true, - const bool allow_exceptions = true, - const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::forward(i)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); - return res ? result : basic_json(value_t::discarded); - } - - /*! - @copydoc from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_cbor(IteratorType first, IteratorType last, - const bool strict = true, - const bool allow_exceptions = true, - const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::move(first), std::move(last)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); - return res ? result : basic_json(value_t::discarded); - } - - template - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len)) - static basic_json from_cbor(const T* ptr, std::size_t len, - const bool strict = true, - const bool allow_exceptions = true, - const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) - { - return from_cbor(ptr, ptr + len, strict, allow_exceptions, tag_handler); - } - - - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len)) - static basic_json from_cbor(detail::span_input_adapter&& i, - const bool strict = true, - const bool allow_exceptions = true, - const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = i.get(); - // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); - return res ? result : basic_json(value_t::discarded); - } - - /*! - @brief create a JSON value from an input in MessagePack format - - Deserializes a given input @a i to a JSON value using the MessagePack - serialization format. - - The library maps MessagePack types to JSON value types as follows: - - MessagePack type | JSON value type | first byte - ---------------- | --------------- | ---------- - positive fixint | number_unsigned | 0x00..0x7F - fixmap | object | 0x80..0x8F - fixarray | array | 0x90..0x9F - fixstr | string | 0xA0..0xBF - nil | `null` | 0xC0 - false | `false` | 0xC2 - true | `true` | 0xC3 - float 32 | number_float | 0xCA - float 64 | number_float | 0xCB - uint 8 | number_unsigned | 0xCC - uint 16 | number_unsigned | 0xCD - uint 32 | number_unsigned | 0xCE - uint 64 | number_unsigned | 0xCF - int 8 | number_integer | 0xD0 - int 16 | number_integer | 0xD1 - int 32 | number_integer | 0xD2 - int 64 | number_integer | 0xD3 - str 8 | string | 0xD9 - str 16 | string | 0xDA - str 32 | string | 0xDB - array 16 | array | 0xDC - array 32 | array | 0xDD - map 16 | object | 0xDE - map 32 | object | 0xDF - bin 8 | binary | 0xC4 - bin 16 | binary | 0xC5 - bin 32 | binary | 0xC6 - ext 8 | binary | 0xC7 - ext 16 | binary | 0xC8 - ext 32 | binary | 0xC9 - fixext 1 | binary | 0xD4 - fixext 2 | binary | 0xD5 - fixext 4 | binary | 0xD6 - fixext 8 | binary | 0xD7 - fixext 16 | binary | 0xD8 - negative fixint | number_integer | 0xE0-0xFF - - @note Any MessagePack output created @ref to_msgpack can be successfully - parsed by @ref from_msgpack. - - @param[in] i an input in MessagePack format convertible to an input - adapter - @param[in] strict whether to expect the input to be consumed until EOF - (true by default) - @param[in] allow_exceptions whether to throw exceptions in case of a - parse error (optional, true by default) - - @return deserialized JSON value; in case of a parse error and - @a allow_exceptions set to `false`, the return value will be - value_t::discarded. - - @throw parse_error.110 if the given input ends prematurely or the end of - file was not reached when @a strict was set to true - @throw parse_error.112 if unsupported features from MessagePack were - used in the given input @a i or if the input is not valid MessagePack - @throw parse_error.113 if a string was expected as map key, but not found - - @complexity Linear in the size of the input @a i. - - @liveexample{The example shows the deserialization of a byte vector in - MessagePack format to a JSON value.,from_msgpack} - - @sa http://msgpack.org - @sa see @ref to_msgpack(const basic_json&) for the analogous serialization - @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the - related CBOR format - @sa see @ref from_ubjson(InputType&&, const bool, const bool) for - the related UBJSON format - @sa see @ref from_bson(InputType&&, const bool, const bool) for - the related BSON format - - @since version 2.0.9; parameter @a start_index since 2.1.1; changed to - consume input adapters, removed start_index parameter, and added - @a strict parameter since 3.0.0; added @a allow_exceptions parameter - since 3.2.0 - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_msgpack(InputType&& i, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::forward(i)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - /*! - @copydoc from_msgpack(InputType&&, const bool, const bool) - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_msgpack(IteratorType first, IteratorType last, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::move(first), std::move(last)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - - template - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len)) - static basic_json from_msgpack(const T* ptr, std::size_t len, - const bool strict = true, - const bool allow_exceptions = true) - { - return from_msgpack(ptr, ptr + len, strict, allow_exceptions); - } - - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len)) - static basic_json from_msgpack(detail::span_input_adapter&& i, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = i.get(); - // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - - /*! - @brief create a JSON value from an input in UBJSON format - - Deserializes a given input @a i to a JSON value using the UBJSON (Universal - Binary JSON) serialization format. - - The library maps UBJSON types to JSON value types as follows: - - UBJSON type | JSON value type | marker - ----------- | --------------------------------------- | ------ - no-op | *no value, next value is read* | `N` - null | `null` | `Z` - false | `false` | `F` - true | `true` | `T` - float32 | number_float | `d` - float64 | number_float | `D` - uint8 | number_unsigned | `U` - int8 | number_integer | `i` - int16 | number_integer | `I` - int32 | number_integer | `l` - int64 | number_integer | `L` - high-precision number | number_integer, number_unsigned, or number_float - depends on number string | 'H' - string | string | `S` - char | string | `C` - array | array (optimized values are supported) | `[` - object | object (optimized values are supported) | `{` - - @note The mapping is **complete** in the sense that any UBJSON value can - be converted to a JSON value. - - @param[in] i an input in UBJSON format convertible to an input adapter - @param[in] strict whether to expect the input to be consumed until EOF - (true by default) - @param[in] allow_exceptions whether to throw exceptions in case of a - parse error (optional, true by default) - - @return deserialized JSON value; in case of a parse error and - @a allow_exceptions set to `false`, the return value will be - value_t::discarded. - - @throw parse_error.110 if the given input ends prematurely or the end of - file was not reached when @a strict was set to true - @throw parse_error.112 if a parse error occurs - @throw parse_error.113 if a string could not be parsed successfully - - @complexity Linear in the size of the input @a i. - - @liveexample{The example shows the deserialization of a byte vector in - UBJSON format to a JSON value.,from_ubjson} - - @sa http://ubjson.org - @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the - analogous serialization - @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the - related CBOR format - @sa see @ref from_msgpack(InputType&&, const bool, const bool) for - the related MessagePack format - @sa see @ref from_bson(InputType&&, const bool, const bool) for - the related BSON format - - @since version 3.1.0; added @a allow_exceptions parameter since 3.2.0 - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_ubjson(InputType&& i, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::forward(i)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - /*! - @copydoc from_ubjson(InputType&&, const bool, const bool) - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_ubjson(IteratorType first, IteratorType last, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::move(first), std::move(last)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - template - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len)) - static basic_json from_ubjson(const T* ptr, std::size_t len, - const bool strict = true, - const bool allow_exceptions = true) - { - return from_ubjson(ptr, ptr + len, strict, allow_exceptions); - } - - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len)) - static basic_json from_ubjson(detail::span_input_adapter&& i, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = i.get(); - // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - - /*! - @brief Create a JSON value from an input in BSON format - - Deserializes a given input @a i to a JSON value using the BSON (Binary JSON) - serialization format. - - The library maps BSON record types to JSON value types as follows: - - BSON type | BSON marker byte | JSON value type - --------------- | ---------------- | --------------------------- - double | 0x01 | number_float - string | 0x02 | string - document | 0x03 | object - array | 0x04 | array - binary | 0x05 | binary - undefined | 0x06 | still unsupported - ObjectId | 0x07 | still unsupported - boolean | 0x08 | boolean - UTC Date-Time | 0x09 | still unsupported - null | 0x0A | null - Regular Expr. | 0x0B | still unsupported - DB Pointer | 0x0C | still unsupported - JavaScript Code | 0x0D | still unsupported - Symbol | 0x0E | still unsupported - JavaScript Code | 0x0F | still unsupported - int32 | 0x10 | number_integer - Timestamp | 0x11 | still unsupported - 128-bit decimal float | 0x13 | still unsupported - Max Key | 0x7F | still unsupported - Min Key | 0xFF | still unsupported - - @warning The mapping is **incomplete**. The unsupported mappings - are indicated in the table above. - - @param[in] i an input in BSON format convertible to an input adapter - @param[in] strict whether to expect the input to be consumed until EOF - (true by default) - @param[in] allow_exceptions whether to throw exceptions in case of a - parse error (optional, true by default) - - @return deserialized JSON value; in case of a parse error and - @a allow_exceptions set to `false`, the return value will be - value_t::discarded. - - @throw parse_error.114 if an unsupported BSON record type is encountered - - @complexity Linear in the size of the input @a i. - - @liveexample{The example shows the deserialization of a byte vector in - BSON format to a JSON value.,from_bson} - - @sa http://bsonspec.org/spec.html - @sa see @ref to_bson(const basic_json&) for the analogous serialization - @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the - related CBOR format - @sa see @ref from_msgpack(InputType&&, const bool, const bool) for - the related MessagePack format - @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the - related UBJSON format - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_bson(InputType&& i, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::forward(i)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - /*! - @copydoc from_bson(InputType&&, const bool, const bool) - */ - template - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json from_bson(IteratorType first, IteratorType last, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = detail::input_adapter(std::move(first), std::move(last)); - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - - template - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len)) - static basic_json from_bson(const T* ptr, std::size_t len, - const bool strict = true, - const bool allow_exceptions = true) - { - return from_bson(ptr, ptr + len, strict, allow_exceptions); - } - - JSON_HEDLEY_WARN_UNUSED_RESULT - JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len)) - static basic_json from_bson(detail::span_input_adapter&& i, - const bool strict = true, - const bool allow_exceptions = true) - { - basic_json result; - detail::json_sax_dom_parser sdp(result, allow_exceptions); - auto ia = i.get(); - // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) - const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); - return res ? result : basic_json(value_t::discarded); - } - /// @} - - ////////////////////////// - // JSON Pointer support // - ////////////////////////// - - /// @name JSON Pointer functions - /// @{ - - /*! - @brief access specified element via JSON Pointer - - Uses a JSON pointer to retrieve a reference to the respective JSON value. - No bound checking is performed. Similar to @ref operator[](const typename - object_t::key_type&), `null` values are created in arrays and objects if - necessary. - - In particular: - - If the JSON pointer points to an object key that does not exist, it - is created an filled with a `null` value before a reference to it - is returned. - - If the JSON pointer points to an array index that does not exist, it - is created an filled with a `null` value before a reference to it - is returned. All indices between the current maximum and the given - index are also filled with `null`. - - The special value `-` is treated as a synonym for the index past the - end. - - @param[in] ptr a JSON pointer - - @return reference to the element pointed to by @a ptr - - @complexity Constant. - - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - @throw out_of_range.404 if the JSON pointer can not be resolved - - @liveexample{The behavior is shown in the example.,operatorjson_pointer} - - @since version 2.0.0 - */ - reference operator[](const json_pointer& ptr) - { - return ptr.get_unchecked(this); - } - - /*! - @brief access specified element via JSON Pointer - - Uses a JSON pointer to retrieve a reference to the respective JSON value. - No bound checking is performed. The function does not change the JSON - value; no `null` values are created. In particular, the special value - `-` yields an exception. - - @param[in] ptr JSON pointer to the desired element - - @return const reference to the element pointed to by @a ptr - - @complexity Constant. - - @throw parse_error.106 if an array index begins with '0' - @throw parse_error.109 if an array index was not a number - @throw out_of_range.402 if the array index '-' is used - @throw out_of_range.404 if the JSON pointer can not be resolved - - @liveexample{The behavior is shown in the example.,operatorjson_pointer_const} - - @since version 2.0.0 - */ - const_reference operator[](const json_pointer& ptr) const - { - return ptr.get_unchecked(this); - } - - /*! - @brief access specified element via JSON Pointer - - Returns a reference to the element at with specified JSON pointer @a ptr, - with bounds checking. - - @param[in] ptr JSON pointer to the desired element - - @return reference to the element pointed to by @a ptr - - @throw parse_error.106 if an array index in the passed JSON pointer @a ptr - begins with '0'. See example below. - - @throw parse_error.109 if an array index in the passed JSON pointer @a ptr - is not a number. See example below. - - @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr - is out of range. See example below. - - @throw out_of_range.402 if the array index '-' is used in the passed JSON - pointer @a ptr. As `at` provides checked access (and no elements are - implicitly inserted), the index '-' is always invalid. See example below. - - @throw out_of_range.403 if the JSON pointer describes a key of an object - which cannot be found. See example below. - - @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved. - See example below. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Constant. - - @since version 2.0.0 - - @liveexample{The behavior is shown in the example.,at_json_pointer} - */ - reference at(const json_pointer& ptr) - { - return ptr.get_checked(this); - } - - /*! - @brief access specified element via JSON Pointer - - Returns a const reference to the element at with specified JSON pointer @a - ptr, with bounds checking. - - @param[in] ptr JSON pointer to the desired element - - @return reference to the element pointed to by @a ptr - - @throw parse_error.106 if an array index in the passed JSON pointer @a ptr - begins with '0'. See example below. - - @throw parse_error.109 if an array index in the passed JSON pointer @a ptr - is not a number. See example below. - - @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr - is out of range. See example below. - - @throw out_of_range.402 if the array index '-' is used in the passed JSON - pointer @a ptr. As `at` provides checked access (and no elements are - implicitly inserted), the index '-' is always invalid. See example below. - - @throw out_of_range.403 if the JSON pointer describes a key of an object - which cannot be found. See example below. - - @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved. - See example below. - - @exceptionsafety Strong guarantee: if an exception is thrown, there are no - changes in the JSON value. - - @complexity Constant. - - @since version 2.0.0 - - @liveexample{The behavior is shown in the example.,at_json_pointer_const} - */ - const_reference at(const json_pointer& ptr) const - { - return ptr.get_checked(this); - } - - /*! - @brief return flattened JSON value - - The function creates a JSON object whose keys are JSON pointers (see [RFC - 6901](https://tools.ietf.org/html/rfc6901)) and whose values are all - primitive. The original JSON value can be restored using the @ref - unflatten() function. - - @return an object that maps JSON pointers to primitive values - - @note Empty objects and arrays are flattened to `null` and will not be - reconstructed correctly by the @ref unflatten() function. - - @complexity Linear in the size the JSON value. - - @liveexample{The following code shows how a JSON object is flattened to an - object whose keys consist of JSON pointers.,flatten} - - @sa see @ref unflatten() for the reverse function - - @since version 2.0.0 - */ - basic_json flatten() const - { - basic_json result(value_t::object); - json_pointer::flatten("", *this, result); - return result; - } - - /*! - @brief unflatten a previously flattened JSON value - - The function restores the arbitrary nesting of a JSON value that has been - flattened before using the @ref flatten() function. The JSON value must - meet certain constraints: - 1. The value must be an object. - 2. The keys must be JSON pointers (see - [RFC 6901](https://tools.ietf.org/html/rfc6901)) - 3. The mapped values must be primitive JSON types. - - @return the original JSON from a flattened version - - @note Empty objects and arrays are flattened by @ref flatten() to `null` - values and can not unflattened to their original type. Apart from - this example, for a JSON value `j`, the following is always true: - `j == j.flatten().unflatten()`. - - @complexity Linear in the size the JSON value. - - @throw type_error.314 if value is not an object - @throw type_error.315 if object values are not primitive - - @liveexample{The following code shows how a flattened JSON object is - unflattened into the original nested JSON object.,unflatten} - - @sa see @ref flatten() for the reverse function - - @since version 2.0.0 - */ - basic_json unflatten() const - { - return json_pointer::unflatten(*this); - } - - /// @} - - ////////////////////////// - // JSON Patch functions // - ////////////////////////// - - /// @name JSON Patch functions - /// @{ - - /*! - @brief applies a JSON patch - - [JSON Patch](http://jsonpatch.com) defines a JSON document structure for - expressing a sequence of operations to apply to a JSON) document. With - this function, a JSON Patch is applied to the current JSON value by - executing all operations from the patch. - - @param[in] json_patch JSON patch document - @return patched document - - @note The application of a patch is atomic: Either all operations succeed - and the patched document is returned or an exception is thrown. In - any case, the original value is not changed: the patch is applied - to a copy of the value. - - @throw parse_error.104 if the JSON patch does not consist of an array of - objects - - @throw parse_error.105 if the JSON patch is malformed (e.g., mandatory - attributes are missing); example: `"operation add must have member path"` - - @throw out_of_range.401 if an array index is out of range. - - @throw out_of_range.403 if a JSON pointer inside the patch could not be - resolved successfully in the current JSON value; example: `"key baz not - found"` - - @throw out_of_range.405 if JSON pointer has no parent ("add", "remove", - "move") - - @throw other_error.501 if "test" operation was unsuccessful - - @complexity Linear in the size of the JSON value and the length of the - JSON patch. As usually only a fraction of the JSON value is affected by - the patch, the complexity can usually be neglected. - - @liveexample{The following code shows how a JSON patch is applied to a - value.,patch} - - @sa see @ref diff -- create a JSON patch by comparing two JSON values - - @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902) - @sa [RFC 6901 (JSON Pointer)](https://tools.ietf.org/html/rfc6901) - - @since version 2.0.0 - */ - basic_json patch(const basic_json& json_patch) const - { - // make a working copy to apply the patch to - basic_json result = *this; - - // the valid JSON Patch operations - enum class patch_operations {add, remove, replace, move, copy, test, invalid}; - - const auto get_op = [](const std::string & op) - { - if (op == "add") - { - return patch_operations::add; - } - if (op == "remove") - { - return patch_operations::remove; - } - if (op == "replace") - { - return patch_operations::replace; - } - if (op == "move") - { - return patch_operations::move; - } - if (op == "copy") - { - return patch_operations::copy; - } - if (op == "test") - { - return patch_operations::test; - } - - return patch_operations::invalid; - }; - - // wrapper for "add" operation; add value at ptr - const auto operation_add = [&result](json_pointer & ptr, basic_json val) - { - // adding to the root of the target document means replacing it - if (ptr.empty()) - { - result = val; - return; - } - - // make sure the top element of the pointer exists - json_pointer top_pointer = ptr.top(); - if (top_pointer != ptr) - { - result.at(top_pointer); - } - - // get reference to parent of JSON pointer ptr - const auto last_path = ptr.back(); - ptr.pop_back(); - basic_json& parent = result[ptr]; - - switch (parent.m_type) - { - case value_t::null: - case value_t::object: - { - // use operator[] to add value - parent[last_path] = val; - break; - } - - case value_t::array: - { - if (last_path == "-") - { - // special case: append to back - parent.push_back(val); - } - else - { - const auto idx = json_pointer::array_index(last_path); - if (JSON_HEDLEY_UNLIKELY(idx > parent.size())) - { - // avoid undefined behavior - JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", parent)); - } - - // default case: insert add offset - parent.insert(parent.begin() + static_cast(idx), val); - } - break; - } - - // if there exists a parent it cannot be primitive - case value_t::string: // LCOV_EXCL_LINE - case value_t::boolean: // LCOV_EXCL_LINE - case value_t::number_integer: // LCOV_EXCL_LINE - case value_t::number_unsigned: // LCOV_EXCL_LINE - case value_t::number_float: // LCOV_EXCL_LINE - case value_t::binary: // LCOV_EXCL_LINE - case value_t::discarded: // LCOV_EXCL_LINE - default: // LCOV_EXCL_LINE - JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE - } - }; - - // wrapper for "remove" operation; remove value at ptr - const auto operation_remove = [this, &result](json_pointer & ptr) - { - // get reference to parent of JSON pointer ptr - const auto last_path = ptr.back(); - ptr.pop_back(); - basic_json& parent = result.at(ptr); - - // remove child - if (parent.is_object()) - { - // perform range check - auto it = parent.find(last_path); - if (JSON_HEDLEY_LIKELY(it != parent.end())) - { - parent.erase(it); - } - else - { - JSON_THROW(out_of_range::create(403, "key '" + last_path + "' not found", *this)); - } - } - else if (parent.is_array()) - { - // note erase performs range check - parent.erase(json_pointer::array_index(last_path)); - } - }; - - // type check: top level value must be an array - if (JSON_HEDLEY_UNLIKELY(!json_patch.is_array())) - { - JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", json_patch)); - } - - // iterate and apply the operations - for (const auto& val : json_patch) - { - // wrapper to get a value for an operation - const auto get_value = [&val](const std::string & op, - const std::string & member, - bool string_type) -> basic_json & - { - // find value - auto it = val.m_value.object->find(member); - - // context-sensitive error message - const auto error_msg = (op == "op") ? "operation" : "operation '" + op + "'"; - - // check if desired value is present - if (JSON_HEDLEY_UNLIKELY(it == val.m_value.object->end())) - { - // NOLINTNEXTLINE(performance-inefficient-string-concatenation) - JSON_THROW(parse_error::create(105, 0, error_msg + " must have member '" + member + "'", val)); - } - - // check if result is of type string - if (JSON_HEDLEY_UNLIKELY(string_type && !it->second.is_string())) - { - // NOLINTNEXTLINE(performance-inefficient-string-concatenation) - JSON_THROW(parse_error::create(105, 0, error_msg + " must have string member '" + member + "'", val)); - } - - // no error: return value - return it->second; - }; - - // type check: every element of the array must be an object - if (JSON_HEDLEY_UNLIKELY(!val.is_object())) - { - JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", val)); - } - - // collect mandatory members - const auto op = get_value("op", "op", true).template get(); - const auto path = get_value(op, "path", true).template get(); - json_pointer ptr(path); - - switch (get_op(op)) - { - case patch_operations::add: - { - operation_add(ptr, get_value("add", "value", false)); - break; - } - - case patch_operations::remove: - { - operation_remove(ptr); - break; - } - - case patch_operations::replace: - { - // the "path" location must exist - use at() - result.at(ptr) = get_value("replace", "value", false); - break; - } - - case patch_operations::move: - { - const auto from_path = get_value("move", "from", true).template get(); - json_pointer from_ptr(from_path); - - // the "from" location must exist - use at() - basic_json v = result.at(from_ptr); - - // The move operation is functionally identical to a - // "remove" operation on the "from" location, followed - // immediately by an "add" operation at the target - // location with the value that was just removed. - operation_remove(from_ptr); - operation_add(ptr, v); - break; - } - - case patch_operations::copy: - { - const auto from_path = get_value("copy", "from", true).template get(); - const json_pointer from_ptr(from_path); - - // the "from" location must exist - use at() - basic_json v = result.at(from_ptr); - - // The copy is functionally identical to an "add" - // operation at the target location using the value - // specified in the "from" member. - operation_add(ptr, v); - break; - } - - case patch_operations::test: - { - bool success = false; - JSON_TRY - { - // check if "value" matches the one at "path" - // the "path" location must exist - use at() - success = (result.at(ptr) == get_value("test", "value", false)); - } - JSON_INTERNAL_CATCH (out_of_range&) - { - // ignore out of range errors: success remains false - } - - // throw an exception if test fails - if (JSON_HEDLEY_UNLIKELY(!success)) - { - JSON_THROW(other_error::create(501, "unsuccessful: " + val.dump(), val)); - } - - break; - } - - case patch_operations::invalid: - default: - { - // op must be "add", "remove", "replace", "move", "copy", or - // "test" - JSON_THROW(parse_error::create(105, 0, "operation value '" + op + "' is invalid", val)); - } - } - } - - return result; - } - - /*! - @brief creates a diff as a JSON patch - - Creates a [JSON Patch](http://jsonpatch.com) so that value @a source can - be changed into the value @a target by calling @ref patch function. - - @invariant For two JSON values @a source and @a target, the following code - yields always `true`: - @code {.cpp} - source.patch(diff(source, target)) == target; - @endcode - - @note Currently, only `remove`, `add`, and `replace` operations are - generated. - - @param[in] source JSON value to compare from - @param[in] target JSON value to compare against - @param[in] path helper value to create JSON pointers - - @return a JSON patch to convert the @a source to @a target - - @complexity Linear in the lengths of @a source and @a target. - - @liveexample{The following code shows how a JSON patch is created as a - diff for two JSON values.,diff} - - @sa see @ref patch -- apply a JSON patch - @sa see @ref merge_patch -- apply a JSON Merge Patch - - @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902) - - @since version 2.0.0 - */ - JSON_HEDLEY_WARN_UNUSED_RESULT - static basic_json diff(const basic_json& source, const basic_json& target, - const std::string& path = "") - { - // the patch - basic_json result(value_t::array); - - // if the values are the same, return empty patch - if (source == target) - { - return result; - } - - if (source.type() != target.type()) - { - // different types: replace value - result.push_back( - { - {"op", "replace"}, {"path", path}, {"value", target} - }); - return result; - } - - switch (source.type()) - { - case value_t::array: - { - // first pass: traverse common elements - std::size_t i = 0; - while (i < source.size() && i < target.size()) - { - // recursive call to compare array values at index i - auto temp_diff = diff(source[i], target[i], path + "/" + std::to_string(i)); - result.insert(result.end(), temp_diff.begin(), temp_diff.end()); - ++i; - } - - // i now reached the end of at least one array - // in a second pass, traverse the remaining elements - - // remove my remaining elements - const auto end_index = static_cast(result.size()); - while (i < source.size()) - { - // add operations in reverse order to avoid invalid - // indices - result.insert(result.begin() + end_index, object( - { - {"op", "remove"}, - {"path", path + "/" + std::to_string(i)} - })); - ++i; - } - - // add other remaining elements - while (i < target.size()) - { - result.push_back( - { - {"op", "add"}, - {"path", path + "/-"}, - {"value", target[i]} - }); - ++i; - } - - break; - } - - case value_t::object: - { - // first pass: traverse this object's elements - for (auto it = source.cbegin(); it != source.cend(); ++it) - { - // escape the key name to be used in a JSON patch - const auto path_key = path + "/" + detail::escape(it.key()); - - if (target.find(it.key()) != target.end()) - { - // recursive call to compare object values at key it - auto temp_diff = diff(it.value(), target[it.key()], path_key); - result.insert(result.end(), temp_diff.begin(), temp_diff.end()); - } - else - { - // found a key that is not in o -> remove it - result.push_back(object( - { - {"op", "remove"}, {"path", path_key} - })); - } - } - - // second pass: traverse other object's elements - for (auto it = target.cbegin(); it != target.cend(); ++it) - { - if (source.find(it.key()) == source.end()) - { - // found a key that is not in this -> add it - const auto path_key = path + "/" + detail::escape(it.key()); - result.push_back( - { - {"op", "add"}, {"path", path_key}, - {"value", it.value()} - }); - } - } - - break; - } - - case value_t::null: - case value_t::string: - case value_t::boolean: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::number_float: - case value_t::binary: - case value_t::discarded: - default: - { - // both primitive type: replace value - result.push_back( - { - {"op", "replace"}, {"path", path}, {"value", target} - }); - break; - } - } - - return result; - } - - /// @} - - //////////////////////////////// - // JSON Merge Patch functions // - //////////////////////////////// - - /// @name JSON Merge Patch functions - /// @{ - - /*! - @brief applies a JSON Merge Patch - - The merge patch format is primarily intended for use with the HTTP PATCH - method as a means of describing a set of modifications to a target - resource's content. This function applies a merge patch to the current - JSON value. - - The function implements the following algorithm from Section 2 of - [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396): - - ``` - define MergePatch(Target, Patch): - if Patch is an Object: - if Target is not an Object: - Target = {} // Ignore the contents and set it to an empty Object - for each Name/Value pair in Patch: - if Value is null: - if Name exists in Target: - remove the Name/Value pair from Target - else: - Target[Name] = MergePatch(Target[Name], Value) - return Target - else: - return Patch - ``` - - Thereby, `Target` is the current object; that is, the patch is applied to - the current value. - - @param[in] apply_patch the patch to apply - - @complexity Linear in the lengths of @a patch. - - @liveexample{The following code shows how a JSON Merge Patch is applied to - a JSON document.,merge_patch} - - @sa see @ref patch -- apply a JSON patch - @sa [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396) - - @since version 3.0.0 - */ - void merge_patch(const basic_json& apply_patch) - { - if (apply_patch.is_object()) - { - if (!is_object()) - { - *this = object(); - } - for (auto it = apply_patch.begin(); it != apply_patch.end(); ++it) - { - if (it.value().is_null()) - { - erase(it.key()); - } - else - { - operator[](it.key()).merge_patch(it.value()); - } - } - } - else - { - *this = apply_patch; - } - } - - /// @} -}; - -/*! -@brief user-defined to_string function for JSON values - -This function implements a user-defined to_string for JSON objects. - -@param[in] j a JSON object -@return a std::string object -*/ - -NLOHMANN_BASIC_JSON_TPL_DECLARATION -std::string to_string(const NLOHMANN_BASIC_JSON_TPL& j) -{ - return j.dump(); -} -} // namespace nlohmann - -/////////////////////// -// nonmember support // -/////////////////////// - -// specialization of std::swap, and std::hash -namespace std -{ - -/// hash value for JSON objects -template<> -struct hash -{ - /*! - @brief return a hash value for a JSON object - - @since version 1.0.0 - */ - std::size_t operator()(const nlohmann::json& j) const - { - return nlohmann::detail::hash(j); - } -}; - -/// specialization for std::less -/// @note: do not remove the space after '<', -/// see https://github.com/nlohmann/json/pull/679 -template<> -struct less<::nlohmann::detail::value_t> -{ - /*! - @brief compare two value_t enum values - @since version 3.0.0 - */ - bool operator()(nlohmann::detail::value_t lhs, - nlohmann::detail::value_t rhs) const noexcept - { - return nlohmann::detail::operator<(lhs, rhs); - } -}; - -// C++20 prohibit function specialization in the std namespace. -#ifndef JSON_HAS_CPP_20 - -/*! -@brief exchanges the values of two JSON objects - -@since version 1.0.0 -*/ -template<> -inline void swap(nlohmann::json& j1, nlohmann::json& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name) - is_nothrow_move_constructible::value&& // NOLINT(misc-redundant-expression) - is_nothrow_move_assignable::value - ) -{ - j1.swap(j2); -} - -#endif - -} // namespace std - -/*! -@brief user-defined string literal for JSON values - -This operator implements a user-defined string literal for JSON objects. It -can be used by adding `"_json"` to a string literal and returns a JSON object -if no parse error occurred. - -@param[in] s a string representation of a JSON object -@param[in] n the length of string @a s -@return a JSON object - -@since version 1.0.0 -*/ -JSON_HEDLEY_NON_NULL(1) -inline nlohmann::json operator "" _json(const char* s, std::size_t n) -{ - return nlohmann::json::parse(s, s + n); -} - -/*! -@brief user-defined string literal for JSON pointer - -This operator implements a user-defined string literal for JSON Pointers. It -can be used by adding `"_json_pointer"` to a string literal and returns a JSON pointer -object if no parse error occurred. - -@param[in] s a string representation of a JSON Pointer -@param[in] n the length of string @a s -@return a JSON pointer object - -@since version 2.0.0 -*/ -JSON_HEDLEY_NON_NULL(1) -inline nlohmann::json::json_pointer operator "" _json_pointer(const char* s, std::size_t n) -{ - return nlohmann::json::json_pointer(std::string(s, n)); -} - -// #include - - -// restore clang diagnostic settings -#if defined(__clang__) - #pragma clang diagnostic pop -#endif - -// clean up -#undef JSON_ASSERT -#undef JSON_INTERNAL_CATCH -#undef JSON_CATCH -#undef JSON_THROW -#undef JSON_TRY -#undef JSON_PRIVATE_UNLESS_TESTED -#undef JSON_HAS_CPP_11 -#undef JSON_HAS_CPP_14 -#undef JSON_HAS_CPP_17 -#undef JSON_HAS_CPP_20 -#undef NLOHMANN_BASIC_JSON_TPL_DECLARATION -#undef NLOHMANN_BASIC_JSON_TPL -#undef JSON_EXPLICIT - -// #include - - -#undef JSON_HEDLEY_ALWAYS_INLINE -#undef JSON_HEDLEY_ARM_VERSION -#undef JSON_HEDLEY_ARM_VERSION_CHECK -#undef JSON_HEDLEY_ARRAY_PARAM -#undef JSON_HEDLEY_ASSUME -#undef JSON_HEDLEY_BEGIN_C_DECLS -#undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE -#undef JSON_HEDLEY_CLANG_HAS_BUILTIN -#undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE -#undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE -#undef JSON_HEDLEY_CLANG_HAS_EXTENSION -#undef JSON_HEDLEY_CLANG_HAS_FEATURE -#undef JSON_HEDLEY_CLANG_HAS_WARNING -#undef JSON_HEDLEY_COMPCERT_VERSION -#undef JSON_HEDLEY_COMPCERT_VERSION_CHECK -#undef JSON_HEDLEY_CONCAT -#undef JSON_HEDLEY_CONCAT3 -#undef JSON_HEDLEY_CONCAT3_EX -#undef JSON_HEDLEY_CONCAT_EX -#undef JSON_HEDLEY_CONST -#undef JSON_HEDLEY_CONSTEXPR -#undef JSON_HEDLEY_CONST_CAST -#undef JSON_HEDLEY_CPP_CAST -#undef JSON_HEDLEY_CRAY_VERSION -#undef JSON_HEDLEY_CRAY_VERSION_CHECK -#undef JSON_HEDLEY_C_DECL -#undef JSON_HEDLEY_DEPRECATED -#undef JSON_HEDLEY_DEPRECATED_FOR -#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL -#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ -#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED -#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES -#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS -#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION -#undef JSON_HEDLEY_DIAGNOSTIC_POP -#undef JSON_HEDLEY_DIAGNOSTIC_PUSH -#undef JSON_HEDLEY_DMC_VERSION -#undef JSON_HEDLEY_DMC_VERSION_CHECK -#undef JSON_HEDLEY_EMPTY_BASES -#undef JSON_HEDLEY_EMSCRIPTEN_VERSION -#undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK -#undef JSON_HEDLEY_END_C_DECLS -#undef JSON_HEDLEY_FLAGS -#undef JSON_HEDLEY_FLAGS_CAST -#undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE -#undef JSON_HEDLEY_GCC_HAS_BUILTIN -#undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE -#undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE -#undef JSON_HEDLEY_GCC_HAS_EXTENSION -#undef JSON_HEDLEY_GCC_HAS_FEATURE -#undef JSON_HEDLEY_GCC_HAS_WARNING -#undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK -#undef JSON_HEDLEY_GCC_VERSION -#undef JSON_HEDLEY_GCC_VERSION_CHECK -#undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE -#undef JSON_HEDLEY_GNUC_HAS_BUILTIN -#undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE -#undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE -#undef JSON_HEDLEY_GNUC_HAS_EXTENSION -#undef JSON_HEDLEY_GNUC_HAS_FEATURE -#undef JSON_HEDLEY_GNUC_HAS_WARNING -#undef JSON_HEDLEY_GNUC_VERSION -#undef JSON_HEDLEY_GNUC_VERSION_CHECK -#undef JSON_HEDLEY_HAS_ATTRIBUTE -#undef JSON_HEDLEY_HAS_BUILTIN -#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE -#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS -#undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE -#undef JSON_HEDLEY_HAS_EXTENSION -#undef JSON_HEDLEY_HAS_FEATURE -#undef JSON_HEDLEY_HAS_WARNING -#undef JSON_HEDLEY_IAR_VERSION -#undef JSON_HEDLEY_IAR_VERSION_CHECK -#undef JSON_HEDLEY_IBM_VERSION -#undef JSON_HEDLEY_IBM_VERSION_CHECK -#undef JSON_HEDLEY_IMPORT -#undef JSON_HEDLEY_INLINE -#undef JSON_HEDLEY_INTEL_CL_VERSION -#undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK -#undef JSON_HEDLEY_INTEL_VERSION -#undef JSON_HEDLEY_INTEL_VERSION_CHECK -#undef JSON_HEDLEY_IS_CONSTANT -#undef JSON_HEDLEY_IS_CONSTEXPR_ -#undef JSON_HEDLEY_LIKELY -#undef JSON_HEDLEY_MALLOC -#undef JSON_HEDLEY_MCST_LCC_VERSION -#undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK -#undef JSON_HEDLEY_MESSAGE -#undef JSON_HEDLEY_MSVC_VERSION -#undef JSON_HEDLEY_MSVC_VERSION_CHECK -#undef JSON_HEDLEY_NEVER_INLINE -#undef JSON_HEDLEY_NON_NULL -#undef JSON_HEDLEY_NO_ESCAPE -#undef JSON_HEDLEY_NO_RETURN -#undef JSON_HEDLEY_NO_THROW -#undef JSON_HEDLEY_NULL -#undef JSON_HEDLEY_PELLES_VERSION -#undef JSON_HEDLEY_PELLES_VERSION_CHECK -#undef JSON_HEDLEY_PGI_VERSION -#undef JSON_HEDLEY_PGI_VERSION_CHECK -#undef JSON_HEDLEY_PREDICT -#undef JSON_HEDLEY_PRINTF_FORMAT -#undef JSON_HEDLEY_PRIVATE -#undef JSON_HEDLEY_PUBLIC -#undef JSON_HEDLEY_PURE -#undef JSON_HEDLEY_REINTERPRET_CAST -#undef JSON_HEDLEY_REQUIRE -#undef JSON_HEDLEY_REQUIRE_CONSTEXPR -#undef JSON_HEDLEY_REQUIRE_MSG -#undef JSON_HEDLEY_RESTRICT -#undef JSON_HEDLEY_RETURNS_NON_NULL -#undef JSON_HEDLEY_SENTINEL -#undef JSON_HEDLEY_STATIC_ASSERT -#undef JSON_HEDLEY_STATIC_CAST -#undef JSON_HEDLEY_STRINGIFY -#undef JSON_HEDLEY_STRINGIFY_EX -#undef JSON_HEDLEY_SUNPRO_VERSION -#undef JSON_HEDLEY_SUNPRO_VERSION_CHECK -#undef JSON_HEDLEY_TINYC_VERSION -#undef JSON_HEDLEY_TINYC_VERSION_CHECK -#undef JSON_HEDLEY_TI_ARMCL_VERSION -#undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK -#undef JSON_HEDLEY_TI_CL2000_VERSION -#undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK -#undef JSON_HEDLEY_TI_CL430_VERSION -#undef JSON_HEDLEY_TI_CL430_VERSION_CHECK -#undef JSON_HEDLEY_TI_CL6X_VERSION -#undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK -#undef JSON_HEDLEY_TI_CL7X_VERSION -#undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK -#undef JSON_HEDLEY_TI_CLPRU_VERSION -#undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK -#undef JSON_HEDLEY_TI_VERSION -#undef JSON_HEDLEY_TI_VERSION_CHECK -#undef JSON_HEDLEY_UNAVAILABLE -#undef JSON_HEDLEY_UNLIKELY -#undef JSON_HEDLEY_UNPREDICTABLE -#undef JSON_HEDLEY_UNREACHABLE -#undef JSON_HEDLEY_UNREACHABLE_RETURN -#undef JSON_HEDLEY_VERSION -#undef JSON_HEDLEY_VERSION_DECODE_MAJOR -#undef JSON_HEDLEY_VERSION_DECODE_MINOR -#undef JSON_HEDLEY_VERSION_DECODE_REVISION -#undef JSON_HEDLEY_VERSION_ENCODE -#undef JSON_HEDLEY_WARNING -#undef JSON_HEDLEY_WARN_UNUSED_RESULT -#undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG -#undef JSON_HEDLEY_FALL_THROUGH - - - -#endif // INCLUDE_NLOHMANN_JSON_HPP_ diff --git a/extern/metrohash128/metrohash128.cpp b/extern/metrohash128/metrohash128.cpp deleted file mode 100644 index 5c143db..0000000 --- a/extern/metrohash128/metrohash128.cpp +++ /dev/null @@ -1,413 +0,0 @@ -// metrohash128.cpp -// -// Copyright 2015-2018 J. Andrew Rogers -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include -#include "platform.h" -#include "metrohash128.h" - -const char * MetroHash128::test_string = "012345678901234567890123456789012345678901234567890123456789012"; - -const uint8_t MetroHash128::test_seed_0[16] = { - 0xC7, 0x7C, 0xE2, 0xBF, 0xA4, 0xED, 0x9F, 0x9B, - 0x05, 0x48, 0xB2, 0xAC, 0x50, 0x74, 0xA2, 0x97 - }; - -const uint8_t MetroHash128::test_seed_1[16] = { - 0x45, 0xA3, 0xCD, 0xB8, 0x38, 0x19, 0x9D, 0x7F, - 0xBD, 0xD6, 0x8D, 0x86, 0x7A, 0x14, 0xEC, 0xEF - }; - - - -MetroHash128::MetroHash128(const uint64_t seed) -{ - Initialize(seed); -} - - -void MetroHash128::Initialize(const uint64_t seed) -{ - // initialize internal hash registers - state.v[0] = (static_cast(seed) - k0) * k3; - state.v[1] = (static_cast(seed) + k1) * k2; - state.v[2] = (static_cast(seed) + k0) * k2; - state.v[3] = (static_cast(seed) - k1) * k3; - - // initialize total length of input - bytes = 0; -} - - -void MetroHash128::Update(const uint8_t * const buffer, const uint64_t length) -{ - const uint8_t * ptr = reinterpret_cast(buffer); - const uint8_t * const end = ptr + length; - - // input buffer may be partially filled - if (bytes % 32) - { - uint64_t fill = 32 - (bytes % 32); - if (fill > length) - fill = length; - - memcpy(input.b + (bytes % 32), ptr, static_cast(fill)); - ptr += fill; - bytes += fill; - - // input buffer is still partially filled - if ((bytes % 32) != 0) return; - - // process full input buffer - state.v[0] += read_u64(&input.b[ 0]) * k0; state.v[0] = rotate_right(state.v[0],29) + state.v[2]; - state.v[1] += read_u64(&input.b[ 8]) * k1; state.v[1] = rotate_right(state.v[1],29) + state.v[3]; - state.v[2] += read_u64(&input.b[16]) * k2; state.v[2] = rotate_right(state.v[2],29) + state.v[0]; - state.v[3] += read_u64(&input.b[24]) * k3; state.v[3] = rotate_right(state.v[3],29) + state.v[1]; - } - - // bulk update - bytes += (end - ptr); - while (ptr <= (end - 32)) - { - // process directly from the source, bypassing the input buffer - state.v[0] += read_u64(ptr) * k0; ptr += 8; state.v[0] = rotate_right(state.v[0],29) + state.v[2]; - state.v[1] += read_u64(ptr) * k1; ptr += 8; state.v[1] = rotate_right(state.v[1],29) + state.v[3]; - state.v[2] += read_u64(ptr) * k2; ptr += 8; state.v[2] = rotate_right(state.v[2],29) + state.v[0]; - state.v[3] += read_u64(ptr) * k3; ptr += 8; state.v[3] = rotate_right(state.v[3],29) + state.v[1]; - } - - // store remaining bytes in input buffer - if (ptr < end) - memcpy(input.b, ptr, end - ptr); -} - - -void MetroHash128::Finalize(uint8_t * const hash) -{ - // finalize bulk loop, if used - if (bytes >= 32) - { - state.v[2] ^= rotate_right(((state.v[0] + state.v[3]) * k0) + state.v[1], 21) * k1; - state.v[3] ^= rotate_right(((state.v[1] + state.v[2]) * k1) + state.v[0], 21) * k0; - state.v[0] ^= rotate_right(((state.v[0] + state.v[2]) * k0) + state.v[3], 21) * k1; - state.v[1] ^= rotate_right(((state.v[1] + state.v[3]) * k1) + state.v[2], 21) * k0; - } - - // process any bytes remaining in the input buffer - const uint8_t * ptr = reinterpret_cast(input.b); - const uint8_t * const end = ptr + (bytes % 32); - - if ((end - ptr) >= 16) - { - state.v[0] += read_u64(ptr) * k2; ptr += 8; state.v[0] = rotate_right(state.v[0],33) * k3; - state.v[1] += read_u64(ptr) * k2; ptr += 8; state.v[1] = rotate_right(state.v[1],33) * k3; - state.v[0] ^= rotate_right((state.v[0] * k2) + state.v[1], 45) * k1; - state.v[1] ^= rotate_right((state.v[1] * k3) + state.v[0], 45) * k0; - } - - if ((end - ptr) >= 8) - { - state.v[0] += read_u64(ptr) * k2; ptr += 8; state.v[0] = rotate_right(state.v[0],33) * k3; - state.v[0] ^= rotate_right((state.v[0] * k2) + state.v[1], 27) * k1; - } - - if ((end - ptr) >= 4) - { - state.v[1] += read_u32(ptr) * k2; ptr += 4; state.v[1] = rotate_right(state.v[1],33) * k3; - state.v[1] ^= rotate_right((state.v[1] * k3) + state.v[0], 46) * k0; - } - - if ((end - ptr) >= 2) - { - state.v[0] += read_u16(ptr) * k2; ptr += 2; state.v[0] = rotate_right(state.v[0],33) * k3; - state.v[0] ^= rotate_right((state.v[0] * k2) + state.v[1], 22) * k1; - } - - if ((end - ptr) >= 1) - { - state.v[1] += read_u8 (ptr) * k2; state.v[1] = rotate_right(state.v[1],33) * k3; - state.v[1] ^= rotate_right((state.v[1] * k3) + state.v[0], 58) * k0; - } - - state.v[0] += rotate_right((state.v[0] * k0) + state.v[1], 13); - state.v[1] += rotate_right((state.v[1] * k1) + state.v[0], 37); - state.v[0] += rotate_right((state.v[0] * k2) + state.v[1], 13); - state.v[1] += rotate_right((state.v[1] * k3) + state.v[0], 37); - - bytes = 0; - - // do any endian conversion here - - memcpy(hash, state.v, 16); -} - - -void MetroHash128::Hash(const uint8_t * buffer, const uint64_t length, uint8_t * const hash, const uint64_t seed) -{ - const uint8_t * ptr = reinterpret_cast(buffer); - const uint8_t * const end = ptr + length; - - uint64_t v[4]; - - v[0] = (static_cast(seed) - k0) * k3; - v[1] = (static_cast(seed) + k1) * k2; - - if (length >= 32) - { - v[2] = (static_cast(seed) + k0) * k2; - v[3] = (static_cast(seed) - k1) * k3; - - do - { - v[0] += read_u64(ptr) * k0; ptr += 8; v[0] = rotate_right(v[0],29) + v[2]; - v[1] += read_u64(ptr) * k1; ptr += 8; v[1] = rotate_right(v[1],29) + v[3]; - v[2] += read_u64(ptr) * k2; ptr += 8; v[2] = rotate_right(v[2],29) + v[0]; - v[3] += read_u64(ptr) * k3; ptr += 8; v[3] = rotate_right(v[3],29) + v[1]; - } - while (ptr <= (end - 32)); - - v[2] ^= rotate_right(((v[0] + v[3]) * k0) + v[1], 21) * k1; - v[3] ^= rotate_right(((v[1] + v[2]) * k1) + v[0], 21) * k0; - v[0] ^= rotate_right(((v[0] + v[2]) * k0) + v[3], 21) * k1; - v[1] ^= rotate_right(((v[1] + v[3]) * k1) + v[2], 21) * k0; - } - - if ((end - ptr) >= 16) - { - v[0] += read_u64(ptr) * k2; ptr += 8; v[0] = rotate_right(v[0],33) * k3; - v[1] += read_u64(ptr) * k2; ptr += 8; v[1] = rotate_right(v[1],33) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 45) * k1; - v[1] ^= rotate_right((v[1] * k3) + v[0], 45) * k0; - } - - if ((end - ptr) >= 8) - { - v[0] += read_u64(ptr) * k2; ptr += 8; v[0] = rotate_right(v[0],33) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 27) * k1; - } - - if ((end - ptr) >= 4) - { - v[1] += read_u32(ptr) * k2; ptr += 4; v[1] = rotate_right(v[1],33) * k3; - v[1] ^= rotate_right((v[1] * k3) + v[0], 46) * k0; - } - - if ((end - ptr) >= 2) - { - v[0] += read_u16(ptr) * k2; ptr += 2; v[0] = rotate_right(v[0],33) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 22) * k1; - } - - if ((end - ptr) >= 1) - { - v[1] += read_u8 (ptr) * k2; v[1] = rotate_right(v[1],33) * k3; - v[1] ^= rotate_right((v[1] * k3) + v[0], 58) * k0; - } - - v[0] += rotate_right((v[0] * k0) + v[1], 13); - v[1] += rotate_right((v[1] * k1) + v[0], 37); - v[0] += rotate_right((v[0] * k2) + v[1], 13); - v[1] += rotate_right((v[1] * k3) + v[0], 37); - - // do any endian conversion here - - memcpy(hash, v, 16); -} - - -bool MetroHash128::ImplementationVerified() -{ - uint8_t hash[16]; - const uint8_t * key = reinterpret_cast(MetroHash128::test_string); - - // verify one-shot implementation - MetroHash128::Hash(key, strlen(MetroHash128::test_string), hash, 0); - if (memcmp(hash, MetroHash128::test_seed_0, 16) != 0) return false; - - MetroHash128::Hash(key, strlen(MetroHash128::test_string), hash, 1); - if (memcmp(hash, MetroHash128::test_seed_1, 16) != 0) return false; - - // verify incremental implementation - MetroHash128 metro; - - metro.Initialize(0); - metro.Update(reinterpret_cast(MetroHash128::test_string), strlen(MetroHash128::test_string)); - metro.Finalize(hash); - if (memcmp(hash, MetroHash128::test_seed_0, 16) != 0) return false; - - metro.Initialize(1); - metro.Update(reinterpret_cast(MetroHash128::test_string), strlen(MetroHash128::test_string)); - metro.Finalize(hash); - if (memcmp(hash, MetroHash128::test_seed_1, 16) != 0) return false; - - return true; -} - - -void metrohash128_1(const uint8_t * key, uint64_t len, uint32_t seed, uint8_t * out) -{ - static const uint64_t k0 = 0xC83A91E1; - static const uint64_t k1 = 0x8648DBDB; - static const uint64_t k2 = 0x7BDEC03B; - static const uint64_t k3 = 0x2F5870A5; - - const uint8_t * ptr = reinterpret_cast(key); - const uint8_t * const end = ptr + len; - - uint64_t v[4]; - - v[0] = ((static_cast(seed) - k0) * k3) + len; - v[1] = ((static_cast(seed) + k1) * k2) + len; - - if (len >= 32) - { - v[2] = ((static_cast(seed) + k0) * k2) + len; - v[3] = ((static_cast(seed) - k1) * k3) + len; - - do - { - v[0] += read_u64(ptr) * k0; ptr += 8; v[0] = rotate_right(v[0],29) + v[2]; - v[1] += read_u64(ptr) * k1; ptr += 8; v[1] = rotate_right(v[1],29) + v[3]; - v[2] += read_u64(ptr) * k2; ptr += 8; v[2] = rotate_right(v[2],29) + v[0]; - v[3] += read_u64(ptr) * k3; ptr += 8; v[3] = rotate_right(v[3],29) + v[1]; - } - while (ptr <= (end - 32)); - - v[2] ^= rotate_right(((v[0] + v[3]) * k0) + v[1], 26) * k1; - v[3] ^= rotate_right(((v[1] + v[2]) * k1) + v[0], 26) * k0; - v[0] ^= rotate_right(((v[0] + v[2]) * k0) + v[3], 26) * k1; - v[1] ^= rotate_right(((v[1] + v[3]) * k1) + v[2], 30) * k0; - } - - if ((end - ptr) >= 16) - { - v[0] += read_u64(ptr) * k2; ptr += 8; v[0] = rotate_right(v[0],33) * k3; - v[1] += read_u64(ptr) * k2; ptr += 8; v[1] = rotate_right(v[1],33) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 17) * k1; - v[1] ^= rotate_right((v[1] * k3) + v[0], 17) * k0; - } - - if ((end - ptr) >= 8) - { - v[0] += read_u64(ptr) * k2; ptr += 8; v[0] = rotate_right(v[0],33) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 20) * k1; - } - - if ((end - ptr) >= 4) - { - v[1] += read_u32(ptr) * k2; ptr += 4; v[1] = rotate_right(v[1],33) * k3; - v[1] ^= rotate_right((v[1] * k3) + v[0], 18) * k0; - } - - if ((end - ptr) >= 2) - { - v[0] += read_u16(ptr) * k2; ptr += 2; v[0] = rotate_right(v[0],33) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 24) * k1; - } - - if ((end - ptr) >= 1) - { - v[1] += read_u8 (ptr) * k2; v[1] = rotate_right(v[1],33) * k3; - v[1] ^= rotate_right((v[1] * k3) + v[0], 24) * k0; - } - - v[0] += rotate_right((v[0] * k0) + v[1], 13); - v[1] += rotate_right((v[1] * k1) + v[0], 37); - v[0] += rotate_right((v[0] * k2) + v[1], 13); - v[1] += rotate_right((v[1] * k3) + v[0], 37); - - // do any endian conversion here - - memcpy(out, v, 16); -} - - -void metrohash128_2(const uint8_t * key, uint64_t len, uint32_t seed, uint8_t * out) -{ - static const uint64_t k0 = 0xD6D018F5; - static const uint64_t k1 = 0xA2AA033B; - static const uint64_t k2 = 0x62992FC1; - static const uint64_t k3 = 0x30BC5B29; - - const uint8_t * ptr = reinterpret_cast(key); - const uint8_t * const end = ptr + len; - - uint64_t v[4]; - - v[0] = ((static_cast(seed) - k0) * k3) + len; - v[1] = ((static_cast(seed) + k1) * k2) + len; - - if (len >= 32) - { - v[2] = ((static_cast(seed) + k0) * k2) + len; - v[3] = ((static_cast(seed) - k1) * k3) + len; - - do - { - v[0] += read_u64(ptr) * k0; ptr += 8; v[0] = rotate_right(v[0],29) + v[2]; - v[1] += read_u64(ptr) * k1; ptr += 8; v[1] = rotate_right(v[1],29) + v[3]; - v[2] += read_u64(ptr) * k2; ptr += 8; v[2] = rotate_right(v[2],29) + v[0]; - v[3] += read_u64(ptr) * k3; ptr += 8; v[3] = rotate_right(v[3],29) + v[1]; - } - while (ptr <= (end - 32)); - - v[2] ^= rotate_right(((v[0] + v[3]) * k0) + v[1], 33) * k1; - v[3] ^= rotate_right(((v[1] + v[2]) * k1) + v[0], 33) * k0; - v[0] ^= rotate_right(((v[0] + v[2]) * k0) + v[3], 33) * k1; - v[1] ^= rotate_right(((v[1] + v[3]) * k1) + v[2], 33) * k0; - } - - if ((end - ptr) >= 16) - { - v[0] += read_u64(ptr) * k2; ptr += 8; v[0] = rotate_right(v[0],29) * k3; - v[1] += read_u64(ptr) * k2; ptr += 8; v[1] = rotate_right(v[1],29) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 29) * k1; - v[1] ^= rotate_right((v[1] * k3) + v[0], 29) * k0; - } - - if ((end - ptr) >= 8) - { - v[0] += read_u64(ptr) * k2; ptr += 8; v[0] = rotate_right(v[0],29) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 29) * k1; - } - - if ((end - ptr) >= 4) - { - v[1] += read_u32(ptr) * k2; ptr += 4; v[1] = rotate_right(v[1],29) * k3; - v[1] ^= rotate_right((v[1] * k3) + v[0], 25) * k0; - } - - if ((end - ptr) >= 2) - { - v[0] += read_u16(ptr) * k2; ptr += 2; v[0] = rotate_right(v[0],29) * k3; - v[0] ^= rotate_right((v[0] * k2) + v[1], 30) * k1; - } - - if ((end - ptr) >= 1) - { - v[1] += read_u8 (ptr) * k2; v[1] = rotate_right(v[1],29) * k3; - v[1] ^= rotate_right((v[1] * k3) + v[0], 18) * k0; - } - - v[0] += rotate_right((v[0] * k0) + v[1], 33); - v[1] += rotate_right((v[1] * k1) + v[0], 33); - v[0] += rotate_right((v[0] * k2) + v[1], 33); - v[1] += rotate_right((v[1] * k3) + v[0], 33); - - // do any endian conversion here - - memcpy(out, v, 16); -} - diff --git a/extern/metrohash128/metrohash128.h b/extern/metrohash128/metrohash128.h deleted file mode 100644 index bda65ae..0000000 --- a/extern/metrohash128/metrohash128.h +++ /dev/null @@ -1,82 +0,0 @@ -// metrohash128.h -// -// Copyright 2015-2018 J. Andrew Rogers -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef METROHASH_METROHASH_128_H -#define METROHASH_METROHASH_128_H - -#include -#include - -typedef std::pair _uint128_t; - -class MetroHash128 -{ -public: - static const uint32_t bits = 128; - - // Constructor initializes the same as Initialize() - MetroHash128(const uint64_t seed=0); - - // Initializes internal state for new hash with optional seed - void Initialize(const uint64_t seed=0); - - // Update the hash state with a string of bytes. If the length - // is sufficiently long, the implementation switches to a bulk - // hashing algorithm directly on the argument buffer for speed. - void Update(const void* buffer, const uint64_t length) { - Update(reinterpret_cast(buffer), length); - } - void Update(const uint8_t* buffer, const uint64_t length); - template - void Update(const T& x) { - Update(&x, sizeof(x)); - } - - // Constructs the final hash and writes it to the argument buffer. - // After a hash is finalized, this instance must be Initialized()-ed - // again or the behavior of Update() and Finalize() is undefined. - void Finalize(uint8_t * const hash); - - // A non-incremental function implementation. This can be significantly - // faster than the incremental implementation for some usage patterns. - static void Hash(const uint8_t * buffer, const uint64_t length, uint8_t * const hash, const uint64_t seed=0); - - // Does implementation correctly execute test vectors? - static bool ImplementationVerified(); - - // test vectors -- Hash(test_string, seed=0) => test_seed_0 - static const char * test_string; - static const uint8_t test_seed_0[16]; - static const uint8_t test_seed_1[16]; - -private: - static const uint64_t k0 = 0xC83A91E1; - static const uint64_t k1 = 0x8648DBDB; - static const uint64_t k2 = 0x7BDEC03B; - static const uint64_t k3 = 0x2F5870A5; - - struct { uint64_t v[4]; } state; - struct { uint8_t b[32]; } input; - uint64_t bytes; -}; - - -// Legacy 128-bit hash functions -- do not use -void metrohash128_1(const uint8_t * key, uint64_t len, uint32_t seed, uint8_t * out); -void metrohash128_2(const uint8_t * key, uint64_t len, uint32_t seed, uint8_t * out); - - -#endif // #ifndef METROHASH_METROHASH_128_H diff --git a/extern/metrohash128/platform.h b/extern/metrohash128/platform.h deleted file mode 100644 index 31291b9..0000000 --- a/extern/metrohash128/platform.h +++ /dev/null @@ -1,50 +0,0 @@ -// platform.h -// -// Copyright 2015-2018 J. Andrew Rogers -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef METROHASH_PLATFORM_H -#define METROHASH_PLATFORM_H - -#include - -// rotate right idiom recognized by most compilers -inline static uint64_t rotate_right(uint64_t v, unsigned k) -{ - return (v >> k) | (v << (64 - k)); -} - -// unaligned reads, fast and safe on Nehalem and later microarchitectures -inline static uint64_t read_u64(const void * const ptr) -{ - return static_cast(*reinterpret_cast(ptr)); -} - -inline static uint64_t read_u32(const void * const ptr) -{ - return static_cast(*reinterpret_cast(ptr)); -} - -inline static uint64_t read_u16(const void * const ptr) -{ - return static_cast(*reinterpret_cast(ptr)); -} - -inline static uint64_t read_u8 (const void * const ptr) -{ - return static_cast(*reinterpret_cast(ptr)); -} - - -#endif // #ifndef METROHASH_PLATFORM_H diff --git a/extern/sha1/sha1.hpp b/extern/sha1/sha1.hpp deleted file mode 100644 index bbf8c66..0000000 --- a/extern/sha1/sha1.hpp +++ /dev/null @@ -1,335 +0,0 @@ -/* - sha1.h - header of - - ============ - SHA-1 in C++ - ============ - - 100% Public Domain. - - Original C Code - -- Steve Reid - Small changes to fit into bglibs - -- Bruce Guenter - Translation to simpler C++ Code - -- Volker Grabsch - Safety fixes - -- Eugene Hopkinson - - Taken and adapted to be a single header from https://github.com/SourMesen/Mesen2/blob/master/Utilities/sha1.cpp - by Sergio Martin (eien86) - -*/ - -#pragma once - -#include -#include -#include -#include -#include -#include - -static const size_t BLOCK_INTS = 16; /* number of 32bit integers per SHA1 block */ -static const size_t BLOCK_BYTES = BLOCK_INTS * 4; - - -static void reset(uint32_t digest[], std::string &buffer, uint64_t &transforms) -{ - /* SHA1 initialization constants */ - digest[0] = 0x67452301; - digest[1] = 0xefcdab89; - digest[2] = 0x98badcfe; - digest[3] = 0x10325476; - digest[4] = 0xc3d2e1f0; - - /* Reset counters */ - buffer = ""; - transforms = 0; -} - - -static uint32_t rol(const uint32_t value, const size_t bits) -{ - return (value << bits) | (value >> (32 - bits)); -} - - -static uint32_t blk(const uint32_t block[BLOCK_INTS], const size_t i) -{ - return rol(block[(i + 13) & 15] ^ block[(i + 8) & 15] ^ block[(i + 2) & 15] ^ block[i], 1); -} - - -/* - * (R0+R1), R2, R3, R4 are the different operations used in SHA1 - */ - -static void R0(const uint32_t block[BLOCK_INTS], const uint32_t v, uint32_t &w, const uint32_t x, const uint32_t y, uint32_t &z, const size_t i) -{ - z += ((w&(x^y)) ^ y) + block[i] + 0x5a827999 + rol(v, 5); - w = rol(w, 30); -} - - -static void R1(uint32_t block[BLOCK_INTS], const uint32_t v, uint32_t &w, const uint32_t x, const uint32_t y, uint32_t &z, const size_t i) -{ - block[i] = blk(block, i); - z += ((w&(x^y)) ^ y) + block[i] + 0x5a827999 + rol(v, 5); - w = rol(w, 30); -} - - -static void R2(uint32_t block[BLOCK_INTS], const uint32_t v, uint32_t &w, const uint32_t x, const uint32_t y, uint32_t &z, const size_t i) -{ - block[i] = blk(block, i); - z += (w^x^y) + block[i] + 0x6ed9eba1 + rol(v, 5); - w = rol(w, 30); -} - - -static void R3(uint32_t block[BLOCK_INTS], const uint32_t v, uint32_t &w, const uint32_t x, const uint32_t y, uint32_t &z, const size_t i) -{ - block[i] = blk(block, i); - z += (((w | x)&y) | (w&x)) + block[i] + 0x8f1bbcdc + rol(v, 5); - w = rol(w, 30); -} - - -static void R4(uint32_t block[BLOCK_INTS], const uint32_t v, uint32_t &w, const uint32_t x, const uint32_t y, uint32_t &z, const size_t i) -{ - block[i] = blk(block, i); - z += (w^x^y) + block[i] + 0xca62c1d6 + rol(v, 5); - w = rol(w, 30); -} - - -/* - * Hash a single 512-bit block. This is the core of the algorithm. - */ - -static void transform(uint32_t digest[], uint32_t block[BLOCK_INTS], uint64_t &transforms) -{ - /* Copy digest[] to working vars */ - uint32_t a = digest[0]; - uint32_t b = digest[1]; - uint32_t c = digest[2]; - uint32_t d = digest[3]; - uint32_t e = digest[4]; - - /* 4 rounds of 20 operations each. Loop unrolled. */ - R0(block, a, b, c, d, e, 0); - R0(block, e, a, b, c, d, 1); - R0(block, d, e, a, b, c, 2); - R0(block, c, d, e, a, b, 3); - R0(block, b, c, d, e, a, 4); - R0(block, a, b, c, d, e, 5); - R0(block, e, a, b, c, d, 6); - R0(block, d, e, a, b, c, 7); - R0(block, c, d, e, a, b, 8); - R0(block, b, c, d, e, a, 9); - R0(block, a, b, c, d, e, 10); - R0(block, e, a, b, c, d, 11); - R0(block, d, e, a, b, c, 12); - R0(block, c, d, e, a, b, 13); - R0(block, b, c, d, e, a, 14); - R0(block, a, b, c, d, e, 15); - R1(block, e, a, b, c, d, 0); - R1(block, d, e, a, b, c, 1); - R1(block, c, d, e, a, b, 2); - R1(block, b, c, d, e, a, 3); - R2(block, a, b, c, d, e, 4); - R2(block, e, a, b, c, d, 5); - R2(block, d, e, a, b, c, 6); - R2(block, c, d, e, a, b, 7); - R2(block, b, c, d, e, a, 8); - R2(block, a, b, c, d, e, 9); - R2(block, e, a, b, c, d, 10); - R2(block, d, e, a, b, c, 11); - R2(block, c, d, e, a, b, 12); - R2(block, b, c, d, e, a, 13); - R2(block, a, b, c, d, e, 14); - R2(block, e, a, b, c, d, 15); - R2(block, d, e, a, b, c, 0); - R2(block, c, d, e, a, b, 1); - R2(block, b, c, d, e, a, 2); - R2(block, a, b, c, d, e, 3); - R2(block, e, a, b, c, d, 4); - R2(block, d, e, a, b, c, 5); - R2(block, c, d, e, a, b, 6); - R2(block, b, c, d, e, a, 7); - R3(block, a, b, c, d, e, 8); - R3(block, e, a, b, c, d, 9); - R3(block, d, e, a, b, c, 10); - R3(block, c, d, e, a, b, 11); - R3(block, b, c, d, e, a, 12); - R3(block, a, b, c, d, e, 13); - R3(block, e, a, b, c, d, 14); - R3(block, d, e, a, b, c, 15); - R3(block, c, d, e, a, b, 0); - R3(block, b, c, d, e, a, 1); - R3(block, a, b, c, d, e, 2); - R3(block, e, a, b, c, d, 3); - R3(block, d, e, a, b, c, 4); - R3(block, c, d, e, a, b, 5); - R3(block, b, c, d, e, a, 6); - R3(block, a, b, c, d, e, 7); - R3(block, e, a, b, c, d, 8); - R3(block, d, e, a, b, c, 9); - R3(block, c, d, e, a, b, 10); - R3(block, b, c, d, e, a, 11); - R4(block, a, b, c, d, e, 12); - R4(block, e, a, b, c, d, 13); - R4(block, d, e, a, b, c, 14); - R4(block, c, d, e, a, b, 15); - R4(block, b, c, d, e, a, 0); - R4(block, a, b, c, d, e, 1); - R4(block, e, a, b, c, d, 2); - R4(block, d, e, a, b, c, 3); - R4(block, c, d, e, a, b, 4); - R4(block, b, c, d, e, a, 5); - R4(block, a, b, c, d, e, 6); - R4(block, e, a, b, c, d, 7); - R4(block, d, e, a, b, c, 8); - R4(block, c, d, e, a, b, 9); - R4(block, b, c, d, e, a, 10); - R4(block, a, b, c, d, e, 11); - R4(block, e, a, b, c, d, 12); - R4(block, d, e, a, b, c, 13); - R4(block, c, d, e, a, b, 14); - R4(block, b, c, d, e, a, 15); - - /* Add the working vars back into digest[] */ - digest[0] += a; - digest[1] += b; - digest[2] += c; - digest[3] += d; - digest[4] += e; - - /* Count the number of transformations */ - transforms++; -} - - -static void buffer_to_block(const std::string &buffer, uint32_t block[BLOCK_INTS]) -{ - /* Convert the std::string (byte buffer) to a uint32_t array (MSB) */ - for(size_t i = 0; i < BLOCK_INTS; i++) { - block[i] = (buffer[4 * i + 3] & 0xff) - | (buffer[4 * i + 2] & 0xff) << 8 - | (buffer[4 * i + 1] & 0xff) << 16 - | (buffer[4 * i + 0] & 0xff) << 24; - } -} - -class SHA1 -{ -public: -SHA1() -{ - reset(digest, buffer, transforms); -} - - -void update(const std::string &s) -{ - std::istringstream is(s); - update(is); -} - - -void update(std::istream &is) -{ - char sbuf[BLOCK_BYTES]; - uint32_t block[BLOCK_INTS]; - - while(true) { - is.read(sbuf, BLOCK_BYTES - buffer.size()); - buffer.append(sbuf, (size_t)is.gcount()); - if(buffer.size() != BLOCK_BYTES) { - return; - } - - buffer_to_block(buffer, block); - transform(digest, block, transforms); - buffer.clear(); - } -} - - -/* - * Add padding and return the message digest. - */ - -std::string final() -{ - /* Total number of hashed bits */ - uint64_t total_bits = (transforms*BLOCK_BYTES + buffer.size()) * 8; - - /* Padding */ - buffer += (char)0x80; - size_t orig_size = buffer.size(); - while(buffer.size() < BLOCK_BYTES) { - buffer += (char)0x00; - } - - uint32_t block[BLOCK_INTS]; - buffer_to_block(buffer, block); - - if(orig_size > BLOCK_BYTES - 8) { - transform(digest, block, transforms); - for(size_t i = 0; i < BLOCK_INTS - 2; i++) { - block[i] = 0; - } - } - - /* Append total_bits, split this uint64_t into two uint32_t */ - block[BLOCK_INTS - 1] = (uint32_t)total_bits; - block[BLOCK_INTS - 2] = (uint32_t)(total_bits >> 32); - transform(digest, block, transforms); - - /* Hex std::string */ - std::ostringstream result; - for(size_t i = 0; i < sizeof(digest) / sizeof(digest[0]); i++) { - result << std::uppercase << std::hex << std::setfill('0') << std::setw(8); - result << digest[i]; - } - - /* Reset for next run */ - reset(digest, buffer, transforms); - - return result.str(); -} - - -static std::string GetHash(uint8_t* data, size_t size) -{ - std::stringstream ss; - ss.write((char*)data, size); - - SHA1 checksum; - checksum.update(ss); - return checksum.final(); -} - -static std::string GetHash(std::istream &stream) -{ - SHA1 checksum; - checksum.update(stream); - return checksum.final(); -} - -static std::string GetHash(const std::string &filename) -{ - std::ifstream stream(filename.c_str(), std::ios::binary); - SHA1 checksum; - checksum.update(stream); - return checksum.final(); -} - -private: - uint32_t digest[5]; - std::string buffer; - uint64_t transforms; -}; - diff --git a/extern/xdelta3/.gitignore b/extern/xdelta3/.gitignore deleted file mode 100644 index a07a74c..0000000 --- a/extern/xdelta3/.gitignore +++ /dev/null @@ -1,6 +0,0 @@ -.deps/ -Makefile -config.status -libtool -stamp-h1 -testing diff --git a/extern/xdelta3/COPYING b/extern/xdelta3/COPYING deleted file mode 100644 index 5b6e7c6..0000000 --- a/extern/xdelta3/COPYING +++ /dev/null @@ -1,340 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1989, 1991 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. 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FILE defaults to `/dev/null' to - disable caching. - -`--config-cache' -`-C' - Alias for `--cache-file=config.cache'. - -`--quiet' -`--silent' -`-q' - Do not print messages saying which checks are being made. To - suppress all normal output, redirect it to `/dev/null' (any error - messages will still be shown). - -`--srcdir=DIR' - Look for the package's source code in directory DIR. Usually - `configure' can determine that directory automatically. - -`--prefix=DIR' - Use DIR as the installation prefix. *note Installation Names:: - for more details, including other options available for fine-tuning - the installation locations. - -`--no-create' -`-n' - Run the configure checks, but stop before creating any output - files. - -`configure' also accepts some other, not widely useful, options. Run -`configure --help' for more details. diff --git a/extern/xdelta3/Makefile.am b/extern/xdelta3/Makefile.am deleted file mode 100644 index 662ff02..0000000 --- a/extern/xdelta3/Makefile.am +++ /dev/null @@ -1,140 +0,0 @@ -ACLOCAL_AMFLAGS = -I m4 - -bin_PROGRAMS = xdelta3 -noinst_PROGRAMS = xdelta3regtest xdelta3decode - -export AFL_HARDEN - -common_SOURCES = \ - xdelta3-blkcache.h \ - xdelta3-decode.h \ - xdelta3-djw.h \ - xdelta3-fgk.h \ - xdelta3-hash.h \ - xdelta3-internal.h \ - xdelta3-list.h \ - xdelta3-lzma.h \ - xdelta3-main.h \ - xdelta3-merge.h \ - xdelta3-second.h \ - xdelta3-test.h \ - xdelta3-cfgs.h \ - xdelta3.h - -xdelta3_SOURCES = $(common_SOURCES) xdelta3.c - -xdelta3decode_SOURCES = $(common_SOURCES) xdelta3.c - -xdelta3regtest_SOURCES = $(common_SOURCES) \ - testing/cmp.h \ - testing/delta.h \ - testing/file.h \ - testing/modify.h \ - testing/random.h \ - testing/regtest.cc \ - testing/regtest_c.c \ - testing/segment.h \ - testing/sizes.h \ - testing/test.h - -# Note: for extra sanity checks, enable -Wconversion. 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- case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } -EOF - (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` - test -z "$HP_ARCH" && HP_ARCH=hppa - fi ;; - esac - if [ ${HP_ARCH} = "hppa2.0w" ] - then - eval $set_cc_for_build - - # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating - # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler - # generating 64-bit code. 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CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && - { echo "$SYSTEM_NAME"; exit; } - echo unknown-hitachi-hiuxwe2 - exit ;; - 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit ;; - *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) - echo hppa1.0-hp-mpeix - exit ;; - hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) - echo hppa1.1-hp-osf - exit ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit ;; - i*86:OSF1:*:*) - if [ -x /usr/sbin/sysversion ] ; then - echo ${UNAME_MACHINE}-unknown-osf1mk - else - echo ${UNAME_MACHINE}-unknown-osf1 - fi - exit ;; - parisc*:Lites*:*:*) - echo hppa1.1-hp-lites - exit ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit ;; - CRAY*Y-MP:*:*:*) - echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*[A-Z]90:*:*:*) - echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ - | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ - -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ - -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*TS:*:*:*) - echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*T3E:*:*:*) - echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*SV1:*:*:*) - echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - *:UNICOS/mp:*:*) - echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) - echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} - exit ;; - sparc*:BSD/OS:*:*) - echo sparc-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:BSD/OS:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:FreeBSD:*:*) - UNAME_PROCESSOR=`/usr/bin/uname -p` - case ${UNAME_PROCESSOR} in - amd64) - echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - *) - echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - esac - exit ;; - i*:CYGWIN*:*) - echo ${UNAME_MACHINE}-pc-cygwin - exit ;; - *:MINGW64*:*) - echo ${UNAME_MACHINE}-pc-mingw64 - exit ;; - *:MINGW*:*) - echo ${UNAME_MACHINE}-pc-mingw32 - exit ;; - *:MSYS*:*) - echo ${UNAME_MACHINE}-pc-msys - exit ;; - i*:windows32*:*) - # uname -m includes "-pc" on this system. - echo ${UNAME_MACHINE}-mingw32 - exit ;; - i*:PW*:*) - echo ${UNAME_MACHINE}-pc-pw32 - exit ;; - *:Interix*:*) - case ${UNAME_MACHINE} in - x86) - echo i586-pc-interix${UNAME_RELEASE} - exit ;; - authenticamd | genuineintel | EM64T) - echo x86_64-unknown-interix${UNAME_RELEASE} - exit ;; - IA64) - echo ia64-unknown-interix${UNAME_RELEASE} - exit ;; - esac ;; - [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) - echo i${UNAME_MACHINE}-pc-mks - exit ;; - 8664:Windows_NT:*) - echo x86_64-pc-mks - exit ;; - i*:Windows_NT*:* | Pentium*:Windows_NT*:*) - # How do we know it's Interix rather than the generic POSIX subsystem? - # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we - # UNAME_MACHINE based on the output of uname instead of i386? - echo i586-pc-interix - exit ;; - i*:UWIN*:*) - echo ${UNAME_MACHINE}-pc-uwin - exit ;; - amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) - echo x86_64-unknown-cygwin - exit ;; - p*:CYGWIN*:*) - echo powerpcle-unknown-cygwin - exit ;; - prep*:SunOS:5.*:*) - echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - *:GNU:*:*) - # the GNU system - echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` - exit ;; - *:GNU/*:*:*) - # other systems with GNU libc and userland - echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC} - exit ;; - i*86:Minix:*:*) - echo ${UNAME_MACHINE}-pc-minix - exit ;; - aarch64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - aarch64_be:Linux:*:*) - UNAME_MACHINE=aarch64_be - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - alpha:Linux:*:*) - case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in - EV5) UNAME_MACHINE=alphaev5 ;; - EV56) UNAME_MACHINE=alphaev56 ;; - PCA56) UNAME_MACHINE=alphapca56 ;; - PCA57) UNAME_MACHINE=alphapca56 ;; - EV6) UNAME_MACHINE=alphaev6 ;; - EV67) UNAME_MACHINE=alphaev67 ;; - EV68*) UNAME_MACHINE=alphaev68 ;; - esac - objdump --private-headers /bin/sh | grep -q ld.so.1 - if test "$?" = 0 ; then LIBC="gnulibc1" ; fi - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - arc:Linux:*:* | arceb:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - arm*:Linux:*:*) - eval $set_cc_for_build - if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_EABI__ - then - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - else - if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_PCS_VFP - then - echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi - else - echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf - fi - fi - exit ;; - avr32*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - cris:Linux:*:*) - echo ${UNAME_MACHINE}-axis-linux-${LIBC} - exit ;; - crisv32:Linux:*:*) - echo ${UNAME_MACHINE}-axis-linux-${LIBC} - exit ;; - e2k:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - frv:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - hexagon:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - i*86:Linux:*:*) - echo ${UNAME_MACHINE}-pc-linux-${LIBC} - exit ;; - ia64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - m32r*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - m68*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - mips:Linux:*:* | mips64:Linux:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #undef CPU - #undef ${UNAME_MACHINE} - #undef ${UNAME_MACHINE}el - #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) - CPU=${UNAME_MACHINE}el - #else - #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) - CPU=${UNAME_MACHINE} - #else - CPU= - #endif - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` - test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; } - ;; - openrisc*:Linux:*:*) - echo or1k-unknown-linux-${LIBC} - exit ;; - or32:Linux:*:* | or1k*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - padre:Linux:*:*) - echo sparc-unknown-linux-${LIBC} - exit ;; - parisc64:Linux:*:* | hppa64:Linux:*:*) - echo hppa64-unknown-linux-${LIBC} - exit ;; - parisc:Linux:*:* | hppa:Linux:*:*) - # Look for CPU level - case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in - PA7*) echo hppa1.1-unknown-linux-${LIBC} ;; - PA8*) echo hppa2.0-unknown-linux-${LIBC} ;; - *) echo hppa-unknown-linux-${LIBC} ;; - esac - exit ;; - ppc64:Linux:*:*) - echo powerpc64-unknown-linux-${LIBC} - exit ;; - ppc:Linux:*:*) - echo powerpc-unknown-linux-${LIBC} - exit ;; - ppc64le:Linux:*:*) - echo powerpc64le-unknown-linux-${LIBC} - exit ;; - ppcle:Linux:*:*) - echo powerpcle-unknown-linux-${LIBC} - exit ;; - s390:Linux:*:* | s390x:Linux:*:*) - echo ${UNAME_MACHINE}-ibm-linux-${LIBC} - exit ;; - sh64*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - sh*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - sparc:Linux:*:* | sparc64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - tile*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - vax:Linux:*:*) - echo ${UNAME_MACHINE}-dec-linux-${LIBC} - exit ;; - x86_64:Linux:*:*) - eval $set_cc_for_build - X86_64_ABI= - # If there is a compiler, see if it is configured for 32-bit objects. - if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then - if (echo '#ifdef __ILP32__'; echo IS_X32; echo '#endif') | \ - (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ - grep IS_X32 >/dev/null - then - X86_64_ABI=x32 - fi - fi - echo x86_64-unknown-linux-gnu${X86_64_ABI} - exit ;; - xtensa*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - i*86:DYNIX/ptx:4*:*) - # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. - # earlier versions are messed up and put the nodename in both - # sysname and nodename. - echo i386-sequent-sysv4 - exit ;; - i*86:UNIX_SV:4.2MP:2.*) - # Unixware is an offshoot of SVR4, but it has its own version - # number series starting with 2... - # I am not positive that other SVR4 systems won't match this, - # I just have to hope. -- rms. - # Use sysv4.2uw... so that sysv4* matches it. - echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} - exit ;; - i*86:OS/2:*:*) - # If we were able to find `uname', then EMX Unix compatibility - # is probably installed. - echo ${UNAME_MACHINE}-pc-os2-emx - exit ;; - i*86:XTS-300:*:STOP) - echo ${UNAME_MACHINE}-unknown-stop - exit ;; - i*86:atheos:*:*) - echo ${UNAME_MACHINE}-unknown-atheos - exit ;; - i*86:syllable:*:*) - echo ${UNAME_MACHINE}-pc-syllable - exit ;; - i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) - echo i386-unknown-lynxos${UNAME_RELEASE} - exit ;; - i*86:*DOS:*:*) - echo ${UNAME_MACHINE}-pc-msdosdjgpp - exit ;; - i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) - UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` - if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then - echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} - else - echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} - fi - exit ;; - i*86:*:5:[678]*) - # UnixWare 7.x, OpenUNIX and OpenServer 6. - case `/bin/uname -X | grep "^Machine"` in - *486*) UNAME_MACHINE=i486 ;; - *Pentium) UNAME_MACHINE=i586 ;; - *Pent*|*Celeron) UNAME_MACHINE=i686 ;; - esac - echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} - exit ;; - i*86:*:3.2:*) - if test -f /usr/options/cb.name; then - UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then - UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` - (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 - (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ - && UNAME_MACHINE=i586 - (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ - && UNAME_MACHINE=i686 - (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ - && UNAME_MACHINE=i686 - echo ${UNAME_MACHINE}-pc-sco$UNAME_REL - else - echo ${UNAME_MACHINE}-pc-sysv32 - fi - exit ;; - pc:*:*:*) - # Left here for compatibility: - # uname -m prints for DJGPP always 'pc', but it prints nothing about - # the processor, so we play safe by assuming i586. - # Note: whatever this is, it MUST be the same as what config.sub - # prints for the "djgpp" host, or else GDB configury will decide that - # this is a cross-build. - echo i586-pc-msdosdjgpp - exit ;; - Intel:Mach:3*:*) - echo i386-pc-mach3 - exit ;; - paragon:*:*:*) - echo i860-intel-osf1 - exit ;; - i860:*:4.*:*) # i860-SVR4 - if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then - echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 - else # Add other i860-SVR4 vendors below as they are discovered. - echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 - fi - exit ;; - mini*:CTIX:SYS*5:*) - # "miniframe" - echo m68010-convergent-sysv - exit ;; - mc68k:UNIX:SYSTEM5:3.51m) - echo m68k-convergent-sysv - exit ;; - M680?0:D-NIX:5.3:*) - echo m68k-diab-dnix - exit ;; - M68*:*:R3V[5678]*:*) - test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; - 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) - OS_REL='' - test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; - 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4; exit; } ;; - NCR*:*:4.2:* | MPRAS*:*:4.2:*) - OS_REL='.3' - test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; - m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) - echo m68k-unknown-lynxos${UNAME_RELEASE} - exit ;; - mc68030:UNIX_System_V:4.*:*) - echo m68k-atari-sysv4 - exit ;; - TSUNAMI:LynxOS:2.*:*) - echo sparc-unknown-lynxos${UNAME_RELEASE} - exit ;; - rs6000:LynxOS:2.*:*) - echo rs6000-unknown-lynxos${UNAME_RELEASE} - exit ;; - PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) - echo powerpc-unknown-lynxos${UNAME_RELEASE} - exit ;; - SM[BE]S:UNIX_SV:*:*) - echo mips-dde-sysv${UNAME_RELEASE} - exit ;; - RM*:ReliantUNIX-*:*:*) - echo mips-sni-sysv4 - exit ;; - RM*:SINIX-*:*:*) - echo mips-sni-sysv4 - exit ;; - *:SINIX-*:*:*) - if uname -p 2>/dev/null >/dev/null ; then - UNAME_MACHINE=`(uname -p) 2>/dev/null` - echo ${UNAME_MACHINE}-sni-sysv4 - else - echo ns32k-sni-sysv - fi - exit ;; - PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort - # says - echo i586-unisys-sysv4 - exit ;; - *:UNIX_System_V:4*:FTX*) - # From Gerald Hewes . - # How about differentiating between stratus architectures? -djm - echo hppa1.1-stratus-sysv4 - exit ;; - *:*:*:FTX*) - # From seanf@swdc.stratus.com. - echo i860-stratus-sysv4 - exit ;; - i*86:VOS:*:*) - # From Paul.Green@stratus.com. - echo ${UNAME_MACHINE}-stratus-vos - exit ;; - *:VOS:*:*) - # From Paul.Green@stratus.com. - echo hppa1.1-stratus-vos - exit ;; - mc68*:A/UX:*:*) - echo m68k-apple-aux${UNAME_RELEASE} - exit ;; - news*:NEWS-OS:6*:*) - echo mips-sony-newsos6 - exit ;; - R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) - if [ -d /usr/nec ]; then - echo mips-nec-sysv${UNAME_RELEASE} - else - echo mips-unknown-sysv${UNAME_RELEASE} - fi - exit ;; - BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. - echo powerpc-be-beos - exit ;; - BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. - echo powerpc-apple-beos - exit ;; - BePC:BeOS:*:*) # BeOS running on Intel PC compatible. - echo i586-pc-beos - exit ;; - BePC:Haiku:*:*) # Haiku running on Intel PC compatible. - echo i586-pc-haiku - exit ;; - x86_64:Haiku:*:*) - echo x86_64-unknown-haiku - exit ;; - SX-4:SUPER-UX:*:*) - echo sx4-nec-superux${UNAME_RELEASE} - exit ;; - SX-5:SUPER-UX:*:*) - echo sx5-nec-superux${UNAME_RELEASE} - exit ;; - SX-6:SUPER-UX:*:*) - echo sx6-nec-superux${UNAME_RELEASE} - exit ;; - SX-7:SUPER-UX:*:*) - echo sx7-nec-superux${UNAME_RELEASE} - exit ;; - SX-8:SUPER-UX:*:*) - echo sx8-nec-superux${UNAME_RELEASE} - exit ;; - SX-8R:SUPER-UX:*:*) - echo sx8r-nec-superux${UNAME_RELEASE} - exit ;; - Power*:Rhapsody:*:*) - echo powerpc-apple-rhapsody${UNAME_RELEASE} - exit ;; - *:Rhapsody:*:*) - echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} - exit ;; - *:Darwin:*:*) - UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown - eval $set_cc_for_build - if test "$UNAME_PROCESSOR" = unknown ; then - UNAME_PROCESSOR=powerpc - fi - if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then - if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then - if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ - (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \ - grep IS_64BIT_ARCH >/dev/null - then - case $UNAME_PROCESSOR in - i386) UNAME_PROCESSOR=x86_64 ;; - powerpc) UNAME_PROCESSOR=powerpc64 ;; - esac - fi - fi - elif test "$UNAME_PROCESSOR" = i386 ; then - # Avoid executing cc on OS X 10.9, as it ships with a stub - # that puts up a graphical alert prompting to install - # developer tools. Any system running Mac OS X 10.7 or - # later (Darwin 11 and later) is required to have a 64-bit - # processor. This is not true of the ARM version of Darwin - # that Apple uses in portable devices. - UNAME_PROCESSOR=x86_64 - fi - echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} - exit ;; - *:procnto*:*:* | *:QNX:[0123456789]*:*) - UNAME_PROCESSOR=`uname -p` - if test "$UNAME_PROCESSOR" = "x86"; then - UNAME_PROCESSOR=i386 - UNAME_MACHINE=pc - fi - echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} - exit ;; - *:QNX:*:4*) - echo i386-pc-qnx - exit ;; - NEO-?:NONSTOP_KERNEL:*:*) - echo neo-tandem-nsk${UNAME_RELEASE} - exit ;; - NSE-*:NONSTOP_KERNEL:*:*) - echo nse-tandem-nsk${UNAME_RELEASE} - exit ;; - NSR-?:NONSTOP_KERNEL:*:*) - echo nsr-tandem-nsk${UNAME_RELEASE} - exit ;; - *:NonStop-UX:*:*) - echo mips-compaq-nonstopux - exit ;; - BS2000:POSIX*:*:*) - echo bs2000-siemens-sysv - exit ;; - DS/*:UNIX_System_V:*:*) - echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} - exit ;; - *:Plan9:*:*) - # "uname -m" is not consistent, so use $cputype instead. 386 - # is converted to i386 for consistency with other x86 - # operating systems. - if test "$cputype" = "386"; then - UNAME_MACHINE=i386 - else - UNAME_MACHINE="$cputype" - fi - echo ${UNAME_MACHINE}-unknown-plan9 - exit ;; - *:TOPS-10:*:*) - echo pdp10-unknown-tops10 - exit ;; - *:TENEX:*:*) - echo pdp10-unknown-tenex - exit ;; - KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) - echo pdp10-dec-tops20 - exit ;; - XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) - echo pdp10-xkl-tops20 - exit ;; - *:TOPS-20:*:*) - echo pdp10-unknown-tops20 - exit ;; - *:ITS:*:*) - echo pdp10-unknown-its - exit ;; - SEI:*:*:SEIUX) - echo mips-sei-seiux${UNAME_RELEASE} - exit ;; - *:DragonFly:*:*) - echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` - exit ;; - *:*VMS:*:*) - UNAME_MACHINE=`(uname -p) 2>/dev/null` - case "${UNAME_MACHINE}" in - A*) echo alpha-dec-vms ; exit ;; - I*) echo ia64-dec-vms ; exit ;; - V*) echo vax-dec-vms ; exit ;; - esac ;; - *:XENIX:*:SysV) - echo i386-pc-xenix - exit ;; - i*86:skyos:*:*) - echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//' - exit ;; - i*86:rdos:*:*) - echo ${UNAME_MACHINE}-pc-rdos - exit ;; - i*86:AROS:*:*) - echo ${UNAME_MACHINE}-pc-aros - exit ;; - x86_64:VMkernel:*:*) - echo ${UNAME_MACHINE}-unknown-esx - exit ;; -esac - -cat >&2 < in order to provide the needed -information to handle your system. - -config.guess timestamp = $timestamp - -uname -m = `(uname -m) 2>/dev/null || echo unknown` -uname -r = `(uname -r) 2>/dev/null || echo unknown` -uname -s = `(uname -s) 2>/dev/null || echo unknown` -uname -v = `(uname -v) 2>/dev/null || echo unknown` - -/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` -/bin/uname -X = `(/bin/uname -X) 2>/dev/null` - -hostinfo = `(hostinfo) 2>/dev/null` -/bin/universe = `(/bin/universe) 2>/dev/null` -/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` -/bin/arch = `(/bin/arch) 2>/dev/null` -/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` -/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` - -UNAME_MACHINE = ${UNAME_MACHINE} -UNAME_RELEASE = ${UNAME_RELEASE} -UNAME_SYSTEM = ${UNAME_SYSTEM} -UNAME_VERSION = ${UNAME_VERSION} -EOF - -exit 1 - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "timestamp='" -# time-stamp-format: "%:y-%02m-%02d" -# time-stamp-end: "'" -# End: diff --git a/extern/xdelta3/config.h b/extern/xdelta3/config.h deleted file mode 100644 index 0baee0f..0000000 --- a/extern/xdelta3/config.h +++ /dev/null @@ -1,74 +0,0 @@ -/* config.h. Generated from config.h.in by configure. */ -/* config.h.in. Generated from configure.ac by autoheader. */ - -/* Define if pointers to integers require aligned access */ -/* #undef HAVE_ALIGNED_ACCESS_REQUIRED */ - -/* Define to 1 if you have the header file. */ -#define HAVE_DLFCN_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_INTTYPES_H 1 - -/* Define to 1 if you have the `lzma' library (-llzma). */ -/* #undef HAVE_LIBLZMA */ - -/* Define to 1 if you have the header file. */ -/* #undef HAVE_LZMA_H */ - -/* Define to 1 if you have the header file. */ -#define HAVE_MEMORY_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_STDINT_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_STDLIB_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_STRINGS_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_STRING_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_SYS_STAT_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_SYS_TYPES_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_UNISTD_H 1 - -/* Define to the sub-directory where libtool stores uninstalled libraries. */ -#define LT_OBJDIR ".libs/" - -/* Define to the address where bug reports for this package should be sent. */ -#define PACKAGE_BUGREPORT "josh.macdonald@gmail.com" - -/* Define to the full name of this package. */ -#define PACKAGE_NAME "Xdelta3" - -/* Define to the full name and version of this package. */ -#define PACKAGE_STRING "Xdelta3 3.0.11" - -/* Define to the one symbol short name of this package. */ -#define PACKAGE_TARNAME "xdelta3" - -/* Define to the home page for this package. */ -#define PACKAGE_URL "http://xdelta.org/" - -/* The size of `size_t', as computed by sizeof. */ -#define SIZEOF_SIZE_T 8 - -/* The size of `unsigned int', as computed by sizeof. */ -#define SIZEOF_UNSIGNED_INT 4 - -/* The size of `unsigned long', as computed by sizeof. */ -#define SIZEOF_UNSIGNED_LONG 8 - -/* The size of `unsigned long long', as computed by sizeof. */ -#define SIZEOF_UNSIGNED_LONG_LONG 8 - -/* Define to 1 if you have the ANSI C header files. */ -#define STDC_HEADERS 1 diff --git a/extern/xdelta3/config.h.in b/extern/xdelta3/config.h.in deleted file mode 100644 index 858e4df..0000000 --- a/extern/xdelta3/config.h.in +++ /dev/null @@ -1,76 +0,0 @@ -/* config.h.in. Generated from configure.ac by autoheader. */ - -/* Define if pointers to integers require aligned access */ -#undef HAVE_ALIGNED_ACCESS_REQUIRED - -/* Define to 1 if you have the header file. */ -#undef HAVE_DLFCN_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_INTTYPES_H - -/* Define to 1 if you have the `lzma' library (-llzma). */ -#undef HAVE_LIBLZMA - -/* Define to 1 if you have the header file. */ -#undef HAVE_LZMA_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_MEMORY_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDINT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDLIB_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRINGS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRING_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STAT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TYPES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_UNISTD_H - -/* Define to the sub-directory where libtool stores uninstalled libraries. */ -#undef LT_OBJDIR - -/* Define to the address where bug reports for this package should be sent. */ -#undef PACKAGE_BUGREPORT - -/* Define to the full name of this package. */ -#undef PACKAGE_NAME - -/* Define to the full name and version of this package. */ -#undef PACKAGE_STRING - -/* Define to the one symbol short name of this package. */ -#undef PACKAGE_TARNAME - -/* Define to the home page for this package. */ -#undef PACKAGE_URL - -/* Define to the version of this package. */ -#undef PACKAGE_VERSION - -/* The size of `size_t', as computed by sizeof. */ -#undef SIZEOF_SIZE_T - -/* The size of `unsigned int', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_INT - -/* The size of `unsigned long', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_LONG - -/* The size of `unsigned long long', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_LONG_LONG - -/* Define to 1 if you have the ANSI C header files. */ -#undef STDC_HEADERS diff --git a/extern/xdelta3/config.sub b/extern/xdelta3/config.sub deleted file mode 100755 index 430106a..0000000 --- a/extern/xdelta3/config.sub +++ /dev/null @@ -1,1828 +0,0 @@ -#! /bin/sh -# Configuration validation subroutine script. -# Copyright 1992-2015 Free Software Foundation, Inc. - -timestamp='2015-03-08' - -# This file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, see . -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that -# program. This Exception is an additional permission under section 7 -# of the GNU General Public License, version 3 ("GPLv3"). - - -# Please send patches to . -# -# Configuration subroutine to validate and canonicalize a configuration type. -# Supply the specified configuration type as an argument. -# If it is invalid, we print an error message on stderr and exit with code 1. -# Otherwise, we print the canonical config type on stdout and succeed. - -# You can get the latest version of this script from: -# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD - -# This file is supposed to be the same for all GNU packages -# and recognize all the CPU types, system types and aliases -# that are meaningful with *any* GNU software. -# Each package is responsible for reporting which valid configurations -# it does not support. The user should be able to distinguish -# a failure to support a valid configuration from a meaningless -# configuration. - -# The goal of this file is to map all the various variations of a given -# machine specification into a single specification in the form: -# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM -# or in some cases, the newer four-part form: -# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM -# It is wrong to echo any other type of specification. - -me=`echo "$0" | sed -e 's,.*/,,'` - -usage="\ -Usage: $0 [OPTION] CPU-MFR-OPSYS - $0 [OPTION] ALIAS - -Canonicalize a configuration name. - -Operation modes: - -h, --help print this help, then exit - -t, --time-stamp print date of last modification, then exit - -v, --version print version number, then exit - -Report bugs and patches to ." - -version="\ -GNU config.sub ($timestamp) - -Copyright 1992-2015 Free Software Foundation, Inc. - -This is free software; see the source for copying conditions. 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- -lynx*) - os=-lynxos - ;; - -ptx*) - basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` - ;; - -windowsnt*) - os=`echo $os | sed -e 's/windowsnt/winnt/'` - ;; - -psos*) - os=-psos - ;; - -mint | -mint[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; -esac - -# Decode aliases for certain CPU-COMPANY combinations. -case $basic_machine in - # Recognize the basic CPU types without company name. - # Some are omitted here because they have special meanings below. - 1750a | 580 \ - | a29k \ - | aarch64 | aarch64_be \ - | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ - | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ - | am33_2.0 \ - | arc | arceb \ - | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ - | avr | avr32 \ - | be32 | be64 \ - | bfin \ - | c4x | c8051 | clipper \ - | d10v | d30v | dlx | dsp16xx | dvp \ - | e2k | epiphany \ - | fido | fr30 | frv | ft32 \ - | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ - | hexagon \ - | i370 | i860 | i960 | ia64 \ - | ip2k | iq2000 \ - | k1om \ - | le32 | le64 \ - | lm32 \ - | m32c | m32r | m32rle | m68000 | m68k | m88k \ - | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ - | mips | mipsbe | mipseb | mipsel | mipsle \ - | mips16 \ - | mips64 | mips64el \ - | mips64octeon | mips64octeonel \ - | mips64orion | mips64orionel \ - | mips64r5900 | mips64r5900el \ - | mips64vr | mips64vrel \ - | mips64vr4100 | mips64vr4100el \ - | mips64vr4300 | mips64vr4300el \ - | mips64vr5000 | mips64vr5000el \ - | mips64vr5900 | mips64vr5900el \ - | mipsisa32 | mipsisa32el \ - | mipsisa32r2 | mipsisa32r2el \ - | mipsisa32r6 | mipsisa32r6el \ - | mipsisa64 | mipsisa64el \ - | mipsisa64r2 | mipsisa64r2el \ - | mipsisa64r6 | mipsisa64r6el \ - | mipsisa64sb1 | mipsisa64sb1el \ - | mipsisa64sr71k | mipsisa64sr71kel \ - | mipsr5900 | mipsr5900el \ - | mipstx39 | mipstx39el \ - | mn10200 | mn10300 \ - | moxie \ - | mt \ - | msp430 \ - | nds32 | nds32le | nds32be \ - | nios | nios2 | nios2eb | nios2el \ - | ns16k | ns32k \ - | open8 | or1k | or1knd | or32 \ - | pdp10 | pdp11 | pj | pjl \ - | powerpc | powerpc64 | powerpc64le | powerpcle \ - | pyramid \ - | riscv32 | riscv64 \ - | rl78 | rx \ - | score \ - | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ - | sh64 | sh64le \ - | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ - | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ - | spu \ - | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ - | ubicom32 \ - | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ - | visium \ - | we32k \ - | x86 | xc16x | xstormy16 | xtensa \ - | z8k | z80) - basic_machine=$basic_machine-unknown - ;; - c54x) - basic_machine=tic54x-unknown - ;; - c55x) - basic_machine=tic55x-unknown - ;; - c6x) - basic_machine=tic6x-unknown - ;; - leon|leon[3-9]) - basic_machine=sparc-$basic_machine - ;; - m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip) - basic_machine=$basic_machine-unknown - os=-none - ;; - m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) - ;; - ms1) - basic_machine=mt-unknown - ;; - - strongarm | thumb | xscale) - basic_machine=arm-unknown - ;; - xgate) - basic_machine=$basic_machine-unknown - os=-none - ;; - xscaleeb) - basic_machine=armeb-unknown - ;; - - xscaleel) - basic_machine=armel-unknown - ;; - - # We use `pc' rather than `unknown' - # because (1) that's what they normally are, and - # (2) the word "unknown" tends to confuse beginning users. - i*86 | x86_64) - basic_machine=$basic_machine-pc - ;; - # Object if more than one company name word. - *-*-*) - echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 - exit 1 - ;; - # Recognize the basic CPU types with company name. - 580-* \ - | a29k-* \ - | aarch64-* | aarch64_be-* \ - | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ - | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ - | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ - | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ - | avr-* | avr32-* \ - | be32-* | be64-* \ - | bfin-* | bs2000-* \ - | c[123]* | c30-* | [cjt]90-* | c4x-* \ - | c8051-* | clipper-* | craynv-* | cydra-* \ - | d10v-* | d30v-* | dlx-* \ - | e2k-* | elxsi-* \ - | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ - | h8300-* | h8500-* \ - | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ - | hexagon-* \ - | i*86-* | i860-* | i960-* | ia64-* \ - | ip2k-* | iq2000-* \ - | k1om-* \ - | le32-* | le64-* \ - | lm32-* \ - | m32c-* | m32r-* | m32rle-* \ - | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ - | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ - | microblaze-* | microblazeel-* \ - | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ - | mips16-* \ - | mips64-* | mips64el-* \ - | mips64octeon-* | mips64octeonel-* \ - | mips64orion-* | mips64orionel-* \ - | mips64r5900-* | mips64r5900el-* \ - | mips64vr-* | mips64vrel-* \ - | mips64vr4100-* | mips64vr4100el-* \ - | mips64vr4300-* | mips64vr4300el-* \ - | mips64vr5000-* | mips64vr5000el-* \ - | mips64vr5900-* | mips64vr5900el-* \ - | mipsisa32-* | mipsisa32el-* \ - | mipsisa32r2-* | mipsisa32r2el-* \ - | mipsisa32r6-* | mipsisa32r6el-* \ - | mipsisa64-* | mipsisa64el-* \ - | mipsisa64r2-* | mipsisa64r2el-* \ - | mipsisa64r6-* | mipsisa64r6el-* \ - | mipsisa64sb1-* | mipsisa64sb1el-* \ - | mipsisa64sr71k-* | mipsisa64sr71kel-* \ - | mipsr5900-* | mipsr5900el-* \ - | mipstx39-* | mipstx39el-* \ - | mmix-* \ - | mt-* \ - | msp430-* \ - | nds32-* | nds32le-* | nds32be-* \ - | nios-* | nios2-* | nios2eb-* | nios2el-* \ - | none-* | np1-* | ns16k-* | ns32k-* \ - | open8-* \ - | or1k*-* \ - | orion-* \ - | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ - | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ - | pyramid-* \ - | rl78-* | romp-* | rs6000-* | rx-* \ - | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ - | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ - | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ - | sparclite-* \ - | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ - | tahoe-* \ - | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ - | tile*-* \ - | tron-* \ - | ubicom32-* \ - | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ - | vax-* \ - | visium-* \ - | we32k-* \ - | x86-* | x86_64-* | xc16x-* | xps100-* \ - | xstormy16-* | xtensa*-* \ - | ymp-* \ - | z8k-* | z80-*) - ;; - # Recognize the basic CPU types without company name, with glob match. - xtensa*) - basic_machine=$basic_machine-unknown - ;; - # Recognize the various machine names and aliases which stand - # for a CPU type and a company and sometimes even an OS. - 386bsd) - basic_machine=i386-unknown - os=-bsd - ;; - 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) - basic_machine=m68000-att - ;; - 3b*) - basic_machine=we32k-att - ;; - a29khif) - basic_machine=a29k-amd - os=-udi - ;; - abacus) - basic_machine=abacus-unknown - ;; - adobe68k) - basic_machine=m68010-adobe - os=-scout - ;; - alliant | fx80) - basic_machine=fx80-alliant - ;; - altos | altos3068) - basic_machine=m68k-altos - ;; - am29k) - basic_machine=a29k-none - os=-bsd - ;; - amd64) - basic_machine=x86_64-pc - ;; - amd64-*) - basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - amdahl) - basic_machine=580-amdahl - os=-sysv - ;; - amiga | amiga-*) - basic_machine=m68k-unknown - ;; - amigaos | amigados) - basic_machine=m68k-unknown - os=-amigaos - ;; - amigaunix | amix) - basic_machine=m68k-unknown - os=-sysv4 - ;; - apollo68) - basic_machine=m68k-apollo - os=-sysv - ;; - apollo68bsd) - basic_machine=m68k-apollo - os=-bsd - ;; - aros) - basic_machine=i386-pc - os=-aros - ;; - asmjs) - basic_machine=asmjs-unknown - ;; - aux) - basic_machine=m68k-apple - os=-aux - ;; - balance) - basic_machine=ns32k-sequent - os=-dynix - ;; - blackfin) - basic_machine=bfin-unknown - os=-linux - ;; - blackfin-*) - basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - bluegene*) - basic_machine=powerpc-ibm - os=-cnk - ;; - c54x-*) - basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c55x-*) - basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c6x-*) - basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c90) - basic_machine=c90-cray - os=-unicos - ;; - cegcc) - basic_machine=arm-unknown - os=-cegcc - ;; - convex-c1) - basic_machine=c1-convex - os=-bsd - ;; - convex-c2) - basic_machine=c2-convex - os=-bsd - ;; - convex-c32) - basic_machine=c32-convex - os=-bsd - ;; - convex-c34) - basic_machine=c34-convex - os=-bsd - ;; - convex-c38) - basic_machine=c38-convex - os=-bsd - ;; - cray | j90) - basic_machine=j90-cray - os=-unicos - ;; - craynv) - basic_machine=craynv-cray - os=-unicosmp - ;; - cr16 | cr16-*) - basic_machine=cr16-unknown - os=-elf - ;; - crds | unos) - basic_machine=m68k-crds - ;; - crisv32 | crisv32-* | etraxfs*) - basic_machine=crisv32-axis - ;; - cris | cris-* | etrax*) - basic_machine=cris-axis - ;; - crx) - basic_machine=crx-unknown - os=-elf - ;; - da30 | da30-*) - basic_machine=m68k-da30 - ;; - decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) - basic_machine=mips-dec - ;; - decsystem10* | dec10*) - basic_machine=pdp10-dec - os=-tops10 - ;; - decsystem20* | dec20*) - basic_machine=pdp10-dec - os=-tops20 - ;; - delta | 3300 | motorola-3300 | motorola-delta \ - | 3300-motorola | delta-motorola) - basic_machine=m68k-motorola - ;; - delta88) - basic_machine=m88k-motorola - os=-sysv3 - ;; - dicos) - basic_machine=i686-pc - os=-dicos - ;; - djgpp) - basic_machine=i586-pc - os=-msdosdjgpp - ;; - dpx20 | dpx20-*) - basic_machine=rs6000-bull - os=-bosx - ;; - dpx2* | dpx2*-bull) - basic_machine=m68k-bull - os=-sysv3 - ;; - ebmon29k) - basic_machine=a29k-amd - os=-ebmon - ;; - elxsi) - basic_machine=elxsi-elxsi - os=-bsd - ;; - encore | umax | mmax) - basic_machine=ns32k-encore - ;; - es1800 | OSE68k | ose68k | ose | OSE) - basic_machine=m68k-ericsson - os=-ose - ;; - fx2800) - basic_machine=i860-alliant - ;; - genix) - basic_machine=ns32k-ns - ;; - gmicro) - basic_machine=tron-gmicro - os=-sysv - ;; - go32) - basic_machine=i386-pc - os=-go32 - ;; - h3050r* | hiux*) - basic_machine=hppa1.1-hitachi - os=-hiuxwe2 - ;; - h8300hms) - basic_machine=h8300-hitachi - os=-hms - ;; - h8300xray) - basic_machine=h8300-hitachi - os=-xray - ;; - h8500hms) - basic_machine=h8500-hitachi - os=-hms - ;; - harris) - basic_machine=m88k-harris - os=-sysv3 - ;; - hp300-*) - basic_machine=m68k-hp - ;; - hp300bsd) - basic_machine=m68k-hp - os=-bsd - ;; - hp300hpux) - basic_machine=m68k-hp - os=-hpux - ;; - hp3k9[0-9][0-9] | hp9[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k2[0-9][0-9] | hp9k31[0-9]) - basic_machine=m68000-hp - ;; - hp9k3[2-9][0-9]) - basic_machine=m68k-hp - ;; - hp9k6[0-9][0-9] | hp6[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k7[0-79][0-9] | hp7[0-79][0-9]) - basic_machine=hppa1.1-hp - ;; - hp9k78[0-9] | hp78[0-9]) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][13679] | hp8[0-9][13679]) - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][0-9] | hp8[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hppa-next) - os=-nextstep3 - ;; - hppaosf) - basic_machine=hppa1.1-hp - os=-osf - ;; - hppro) - basic_machine=hppa1.1-hp - os=-proelf - ;; - i370-ibm* | ibm*) - basic_machine=i370-ibm - ;; - i*86v32) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv32 - ;; - i*86v4*) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv4 - ;; - i*86v) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv - ;; - i*86sol2) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-solaris2 - ;; - i386mach) - basic_machine=i386-mach - os=-mach - ;; - i386-vsta | vsta) - basic_machine=i386-unknown - os=-vsta - ;; - iris | iris4d) - basic_machine=mips-sgi - case $os in - -irix*) - ;; - *) - os=-irix4 - ;; - esac - ;; - isi68 | isi) - basic_machine=m68k-isi - os=-sysv - ;; - leon-*|leon[3-9]-*) - basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'` - ;; - m68knommu) - basic_machine=m68k-unknown - os=-linux - ;; - m68knommu-*) - basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - m88k-omron*) - basic_machine=m88k-omron - ;; - magnum | m3230) - basic_machine=mips-mips - os=-sysv - ;; - merlin) - basic_machine=ns32k-utek - os=-sysv - ;; - microblaze*) - basic_machine=microblaze-xilinx - ;; - mingw64) - basic_machine=x86_64-pc - os=-mingw64 - ;; - mingw32) - basic_machine=i686-pc - os=-mingw32 - ;; - mingw32ce) - basic_machine=arm-unknown - os=-mingw32ce - ;; - miniframe) - basic_machine=m68000-convergent - ;; - *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; - mipsEE* | ee | ps2) - basic_machine=mips64r5900el-scei - case $os in - -linux*) - ;; - *) - os=-elf - ;; - esac - ;; - iop) - basic_machine=mipsel-scei - os=-irx - ;; - dvp) - basic_machine=dvp-scei - os=-elf - ;; - mips3*-*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` - ;; - mips3*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown - ;; - monitor) - basic_machine=m68k-rom68k - os=-coff - ;; - morphos) - basic_machine=powerpc-unknown - os=-morphos - ;; - moxiebox) - basic_machine=moxie-unknown - os=-moxiebox - ;; - msdos) - basic_machine=i386-pc - os=-msdos - ;; - ms1-*) - basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` - ;; - msys) - basic_machine=i686-pc - os=-msys - ;; - mvs) - basic_machine=i370-ibm - os=-mvs - ;; - nacl) - basic_machine=le32-unknown - os=-nacl - ;; - ncr3000) - basic_machine=i486-ncr - os=-sysv4 - ;; - netbsd386) - basic_machine=i386-unknown - os=-netbsd - ;; - netwinder) - basic_machine=armv4l-rebel - os=-linux - ;; - news | news700 | news800 | news900) - basic_machine=m68k-sony - os=-newsos - ;; - news1000) - basic_machine=m68030-sony - os=-newsos - ;; - news-3600 | risc-news) - basic_machine=mips-sony - os=-newsos - ;; - necv70) - basic_machine=v70-nec - os=-sysv - ;; - next | m*-next ) - basic_machine=m68k-next - case $os in - -nextstep* ) - ;; - -ns2*) - os=-nextstep2 - ;; - *) - os=-nextstep3 - ;; - esac - ;; - nh3000) - basic_machine=m68k-harris - os=-cxux - ;; - nh[45]000) - basic_machine=m88k-harris - os=-cxux - ;; - nindy960) - basic_machine=i960-intel - os=-nindy - ;; - mon960) - basic_machine=i960-intel - os=-mon960 - ;; - nonstopux) - basic_machine=mips-compaq - os=-nonstopux - ;; - np1) - basic_machine=np1-gould - ;; - neo-tandem) - basic_machine=neo-tandem - ;; - nse-tandem) - basic_machine=nse-tandem - ;; 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- pentiumii | pentium2 | pentiumiii | pentium3) - basic_machine=i686-pc - ;; - pentium4) - basic_machine=i786-pc - ;; - pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) - basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - pentiumpro-* | p6-* | 6x86-* | athlon-*) - basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) - basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - pentium4-*) - basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - pn) - basic_machine=pn-gould - ;; - power) basic_machine=power-ibm - ;; - ppc | ppcbe) basic_machine=powerpc-unknown - ;; - ppc-* | ppcbe-*) - basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - ppcle | powerpclittle | ppc-le | powerpc-little) - basic_machine=powerpcle-unknown - ;; - ppcle-* | powerpclittle-*) - basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - ppc64) basic_machine=powerpc64-unknown - ;; 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It works by - # looking at the text of this script. This case will never be run, - # since it is checked for above. - exit 1 - ;; - -none) - exec "$@" - ;; - -*) - echo "Unknown depmode $depmode" 1>&2 - exit 1 - ;; -esac - -exit 0 - -# Local Variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/extern/xdelta3/examples/README.md b/extern/xdelta3/examples/README.md deleted file mode 100644 index 60840bf..0000000 --- a/extern/xdelta3/examples/README.md +++ /dev/null @@ -1,8 +0,0 @@ -Files in this directory demonstrate how to use the Xdelta3 API. Copyrights -are held by the respective authors and these files are not covered by the GPL. - -small_page_test.c -- how to use xdelta3 in an environment such as the kernel -for small pages with little memory - -encode_decode_test.c -- how to use xdelta3 to process (encode/decode) data in -multiple windows with the non-blocking API diff --git a/extern/xdelta3/examples/checksum_test.cc b/extern/xdelta3/examples/checksum_test.cc deleted file mode 100644 index 028922b..0000000 --- a/extern/xdelta3/examples/checksum_test.cc +++ /dev/null @@ -1,732 +0,0 @@ -/* Copyright (C) 2007 Josh MacDonald */ - -extern "C" { -#include "test.h" -#include -} - -#include -#include -#include -#include - -using std::list; -using std::map; -using std::vector; - -// MLCG parameters -// a, a* -uint32_t good_32bit_values[] = { - 1597334677U, // ... - 741103597U, 887987685U, -}; - -// a, a* -uint64_t good_64bit_values[] = { - 1181783497276652981ULL, 4292484099903637661ULL, - 7664345821815920749ULL, // ... -}; - -struct true_type { }; -struct false_type { }; - -template -int bitsof(); - -template<> -int bitsof() { - return 32; -} - -template<> -int bitsof() { - return 64; -} - -struct plain { - int operator()(const uint8_t &c) { - return c; - } -}; - -template -struct hhash { // take "h" of the high-bits as a hash value for this - // checksum, which are the most "distant" in terms of the - // spectral test for the rabin_karp MLCG. For short windows, - // the high bits aren't enough, XOR "mask" worth of these in. - Word operator()(const Word& t, const int &h, const int &mask) { - return (t >> h) ^ (t & mask); - } -}; - -template -Word good_word(); - -template<> -uint32_t good_word() { - return good_32bit_values[0]; -} - -template<> -uint64_t good_word() { - return good_64bit_values[0]; -} - -// CLASSES - -#define SELF Word, CksumSize, CksumSkip, Permute, Hash, Compaction -#define MEMBER template - -MEMBER -struct cksum_params { - typedef Word word_type; - typedef Permute permute_type; - typedef Hash hash_type; - - enum { cksum_size = CksumSize, - cksum_skip = CksumSkip, - compaction = Compaction, - }; -}; - - -MEMBER -struct rabin_karp { - typedef Word word_type; - typedef Permute permute_type; - typedef Hash hash_type; - - enum { cksum_size = CksumSize, - cksum_skip = CksumSkip, - compaction = Compaction, - }; - - // (a^cksum_size-1 c_0) + (a^cksum_size-2 c_1) ... - rabin_karp() { - multiplier = good_word(); - powers = new Word[cksum_size]; - powers[cksum_size - 1] = 1; - for (int i = cksum_size - 2; i >= 0; i--) { - powers[i] = powers[i + 1] * multiplier; - } - product = powers[0] * multiplier; - } - - ~rabin_karp() { - delete [] powers; - } - - Word step(const uint8_t *ptr) { - Word h = 0; - for (int i = 0; i < cksum_size; i++) { - h += permute_type()(ptr[i]) * powers[i]; - } - return h; - } - - Word state0(const uint8_t *ptr) { - incr_state = step(ptr); - return incr_state; - } - - Word incr(const uint8_t *ptr) { - incr_state = multiplier * incr_state - - product * permute_type()(ptr[-1]) + - permute_type()(ptr[cksum_size - 1]); - return incr_state; - } - - Word *powers; - Word product; - Word multiplier; - Word incr_state; -}; - -MEMBER -struct adler32_cksum { - typedef Word word_type; - typedef Permute permute_type; - typedef Hash hash_type; - - enum { cksum_size = CksumSize, - cksum_skip = CksumSkip, - compaction = Compaction, - }; - - Word step(const uint8_t *ptr) { - return xd3_lcksum (ptr, cksum_size); - } - - Word state0(const uint8_t *ptr) { - incr_state = step(ptr); - return incr_state; - } - - Word incr(const uint8_t *ptr) { - incr_state = xd3_large_cksum_update (incr_state, ptr - 1, cksum_size); - return incr_state; - } - - Word incr_state; -}; - -// TESTS - -template -struct file_stats { - typedef list ptr_list; - typedef Word word_type; - typedef map table_type; - typedef typename table_type::iterator table_iterator; - typedef typename ptr_list::iterator ptr_iterator; - - int cksum_size; - int cksum_skip; - int unique; - int unique_values; - int count; - table_type table; - - file_stats(int size, int skip) - : cksum_size(size), - cksum_skip(skip), - unique(0), - unique_values(0), - count(0) { - } - - void reset() { - unique = 0; - unique_values = 0; - count = 0; - table.clear(); - } - - void update(const word_type &word, const uint8_t *ptr) { - table_iterator t_i = table.find(word); - - count++; - - if (t_i == table.end()) { - table.insert(make_pair(word, ptr_list())); - } - - ptr_list &pl = table[word]; - - for (ptr_iterator p_i = pl.begin(); - p_i != pl.end(); - ++p_i) { - if (memcmp(*p_i, ptr, cksum_size) == 0) { - return; - } - } - - unique++; - pl.push_back(ptr); - } - - void freeze() { - unique_values = table.size(); - table.clear(); - } -}; - -struct test_result_base; - -static vector all_tests; - -struct test_result_base { - virtual ~test_result_base() { - } - virtual void reset() = 0; - virtual void print() = 0; - virtual void get(const uint8_t* buf, const int buf_size, int iters) = 0; - virtual void stat() = 0; - virtual int count() = 0; - virtual int dups() = 0; - virtual double uniqueness() = 0; - virtual double fullness() = 0; - virtual double collisions() = 0; - virtual double coverage() = 0; - virtual double compression() = 0; - virtual double time() = 0; - virtual double score() = 0; - virtual void set_score(double min_dups_frac, double min_time) = 0; - virtual double total_time() = 0; - virtual int total_count() = 0; - virtual int total_dups() = 0; -}; - -struct compare_h { - bool operator()(test_result_base *a, - test_result_base *b) { - return a->score() < b->score(); - } -}; - -MEMBER -struct test_result : public test_result_base { - typedef Word word_type; - typedef Permute permute_type; - typedef Hash hash_type; - - enum { cksum_size = CksumSize, - cksum_skip = CksumSkip, - compaction = Compaction, - }; - - const char *test_name; - file_stats fstats; - int test_size; - int n_steps; - int n_incrs; - int s_bits; - int s_mask; - int t_entries; - int h_bits; - int h_buckets_full; - double h_score; - char *hash_table; - long accum_millis; - int accum_iters; - - // These are not reset - double accum_time; - int accum_count; - int accum_dups; - int accum_colls; - int accum_size; - - test_result(const char *name) - : test_name(name), - fstats(cksum_size, cksum_skip), - hash_table(NULL), - accum_millis(0), - accum_iters(0), - accum_time(0.0), - accum_count(0), - accum_dups(0), - accum_colls(0), - accum_size(0) { - all_tests.push_back(this); - } - - ~test_result() { - reset(); - } - - void reset() { - // size of file - test_size = -1; - - // count - n_steps = -1; - n_incrs = -1; - - // four values used by new_table()/summarize_table() - s_bits = -1; - s_mask = -1; - t_entries = -1; - h_bits = -1; - h_buckets_full = -1; - - accum_millis = 0; - accum_iters = 0; - - fstats.reset(); - - // temporary - if (hash_table) { - delete(hash_table); - hash_table = NULL; - } - } - - int count() { - if (cksum_skip == 1) { - return n_incrs; - } else { - return n_steps; - } - } - - int dups() { - return fstats.count - fstats.unique; - } - - int colls() { - return fstats.unique - fstats.unique_values; - } - - double uniqueness() { - return 1.0 - (double) dups() / count(); - } - - double fullness() { - return (double) h_buckets_full / (1 << h_bits); - } - - double collisions() { - return (double) colls() / fstats.unique; - } - - double coverage() { - return (double) h_buckets_full / uniqueness() / count(); - } - - double compression() { - return 1.0 - coverage(); - } - - double time() { - return (double) accum_millis / accum_iters; - } - - double score() { - return h_score; - } - - void set_score(double min_compression, double min_time) { - h_score = (compression() - 0.99 * min_compression) - * (time() - 0.99 * min_time); - } - - double total_time() { - return accum_time; - } - - int total_count() { - return accum_count; - } - - int total_dups() { - return accum_dups; - } - - int total_colls() { - return accum_dups; - } - - void stat() { - accum_time += time(); - accum_count += count(); - accum_dups += dups(); - accum_colls += colls(); - accum_size += test_size; - } - - void print() { - if (fstats.count != count()) { - fprintf(stderr, "internal error: %d != %d\n", fstats.count, count()); - abort(); - } - printf("%s: (%u#%u) count %u uniq %0.2f%% full %u (%0.4f%% coll %0.4f%%) covers %0.2f%% w/ 2^%d @ %.4f MB/s %u iters\n", - test_name, - cksum_size, - cksum_skip, - count(), - 100.0 * uniqueness(), - h_buckets_full, - 100.0 * fullness(), - 100.0 * collisions(), - 100.0 * coverage(), - h_bits, - 0.001 * accum_iters * test_size / accum_millis, - accum_iters); - } - - int size_log2 (int slots) - { - int bits = bitsof() - 1; - int i; - - for (i = 3; i <= bits; i += 1) { - if (slots <= (1 << i)) { - return i - compaction; - } - } - - return bits; - } - - void new_table(int entries) { - t_entries = entries; - h_bits = size_log2(entries); - - int n = 1 << h_bits; - - s_bits = bitsof() - h_bits; - s_mask = n - 1; - - hash_table = new char[n / 8]; - memset(hash_table, 0, n / 8); - } - - int get_table_bit(int i) { - return hash_table[i/8] & (1 << i%8); - } - - int set_table_bit(int i) { - return hash_table[i/8] |= (1 << i%8); - } - - void summarize_table() { - int n = 1 << h_bits; - int f = 0; - for (int i = 0; i < n; i++) { - if (get_table_bit(i)) { - f++; - } - } - h_buckets_full = f; - } - - void get(const uint8_t* buf, const int buf_size, int test_iters) { - rabin_karp test; - //adler32_cksum test; - hash_type hash; - const uint8_t *ptr; - const uint8_t *end; - int last_offset; - int periods; - int stop; - - test_size = buf_size; - last_offset = buf_size - cksum_size; - - if (last_offset < 0) { - periods = 0; - n_steps = 0; - n_incrs = 0; - stop = -cksum_size; - } else { - periods = last_offset / cksum_skip; - n_steps = periods + 1; - n_incrs = last_offset + 1; - stop = last_offset - (periods + 1) * cksum_skip; - } - - // Compute file stats once. - if (fstats.unique_values == 0) { - if (cksum_skip == 1) { - for (int i = 0; i <= buf_size - cksum_size; i++) { - fstats.update(hash(test.step(buf + i), s_bits, s_mask), buf + i); - } - } else { - ptr = buf + last_offset; - end = buf + stop; - - for (; ptr != end; ptr -= cksum_skip) { - fstats.update(hash(test.step(ptr), s_bits, s_mask), ptr); - } - } - fstats.freeze(); - } - - long start_test = get_millisecs_now(); - - if (cksum_skip != 1) { - new_table(n_steps); - - for (int i = 0; i < test_iters; i++) { - ptr = buf + last_offset; - end = buf + stop; - - for (; ptr != end; ptr -= cksum_skip) { - set_table_bit(hash(test.step(ptr), s_bits, s_mask)); - } - } - - summarize_table(); - } - - stop = buf_size - cksum_size + 1; - if (stop < 0) { - stop = 0; - } - - if (cksum_skip == 1) { - - new_table(n_incrs); - - for (int i = 0; i < test_iters; i++) { - ptr = buf; - end = buf + stop; - - if (ptr != end) { - set_table_bit(hash(test.state0(ptr++), s_bits, s_mask)); - } - - for (; ptr != end; ptr++) { - Word w = test.incr(ptr); - assert(w == test.step(ptr)); - set_table_bit(hash(w, s_bits, s_mask)); - } - } - - summarize_table(); - } - - accum_iters += test_iters; - accum_millis += get_millisecs_now() - start_test; - } -}; - -template -void print_array(const char *tname) { - printf("static const %s hash_multiplier[64] = {\n", tname); - Word p = 1; - for (int i = 0; i < 64; i++) { - printf(" %uU,\n", p); - p *= good_word(); - } - printf("};\n", tname); -} - -int main(int argc, char** argv) { - int i; - uint8_t *buf = NULL; - size_t buf_len = 0; - int ret; - - if (argc <= 1) { - fprintf(stderr, "usage: %s file ...\n", argv[0]); - return 1; - } - - //print_array("uint32_t"); - -#define TEST(T,Z,S,P,H,C) test_result,C> \ - _ ## T ## _ ## Z ## _ ## S ## _ ## P ## _ ## H ## _ ## C \ - (#T "_" #Z "_" #S "_" #P "_" #H "_" #C) - -#if 0 - - TEST(uint32_t, 4, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 4, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 4, SKIP, plain, hhash, 2); /* x */ \ - TEST(uint32_t, 4, SKIP, plain, hhash, 3); /* x */ \ - -#endif - -#define TESTS(SKIP) \ - TEST(uint32_t, 9, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 9, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 9, SKIP, plain, hhash, 2); /* x */ \ - TEST(uint32_t, 9, SKIP, plain, hhash, 3) - -#define TESTS_ALL(SKIP) \ - TEST(uint32_t, 3, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 3, SKIP, plain, hhash, 1); \ - TEST(uint32_t, 4, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 4, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 4, SKIP, plain, hhash, 2); /* x */ \ - TEST(uint32_t, 4, SKIP, plain, hhash, 3); /* x */ \ - TEST(uint32_t, 5, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 5, SKIP, plain, hhash, 1); \ - TEST(uint32_t, 8, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 8, SKIP, plain, hhash, 1); \ - TEST(uint32_t, 9, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 9, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 9, SKIP, plain, hhash, 2); /* x */ \ - TEST(uint32_t, 9, SKIP, plain, hhash, 3); /* x */ \ - TEST(uint32_t, 11, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 11, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 13, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 13, SKIP, plain, hhash, 1); \ - TEST(uint32_t, 15, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 15, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 16, SKIP, plain, hhash, 0); /* x */ \ - TEST(uint32_t, 16, SKIP, plain, hhash, 1); /* x */ \ - TEST(uint32_t, 21, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 21, SKIP, plain, hhash, 1); \ - TEST(uint32_t, 34, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 34, SKIP, plain, hhash, 1); \ - TEST(uint32_t, 55, SKIP, plain, hhash, 0); \ - TEST(uint32_t, 55, SKIP, plain, hhash, 1) - - TESTS(1); // * -// TESTS(2); // * -// TESTS(3); // * -// TESTS(5); // * -// TESTS(8); // * -// TESTS(9); -// TESTS(11); -// TESTS(13); // * - TESTS(15); -// TESTS(16); -// TESTS(21); // * -// TESTS(34); // * -// TESTS(55); // * -// TESTS(89); // * - - for (i = 1; i < argc; i++) { - if ((ret = read_whole_file(argv[i], - & buf, - & buf_len))) { - return 1; - } - - fprintf(stderr, "file %s is %zu bytes\n", - argv[i], buf_len); - - double min_time = -1.0; - double min_compression = 0.0; - - for (vector::iterator i = all_tests.begin(); - i != all_tests.end(); ++i) { - test_result_base *test = *i; - test->reset(); - - int iters = 100; - long start_test = get_millisecs_now(); - - do { - test->get(buf, buf_len, iters); - iters *= 3; - iters /= 2; - } while (get_millisecs_now() - start_test < 2000); - - test->stat(); - - if (min_time < 0.0) { - min_compression = test->compression(); - min_time = test->time(); - } - - if (min_time > test->time()) { - min_time = test->time(); - } - - if (min_compression > test->compression()) { - min_compression = test->compression(); - } - - test->print(); - } - -// for (vector::iterator i = all_tests.begin(); -// i != all_tests.end(); ++i) { -// test_result_base *test = *i; -// test->set_score(min_compression, min_time); -// } - -// sort(all_tests.begin(), all_tests.end(), compare_h()); - -// for (vector::iterator i = all_tests.begin(); -// i != all_tests.end(); ++i) { -// test_result_base *test = *i; -// test->print(); -// } - - free(buf); - buf = NULL; - } - - return 0; -} diff --git a/extern/xdelta3/examples/compare_test.c b/extern/xdelta3/examples/compare_test.c deleted file mode 100644 index f3b3ea2..0000000 --- a/extern/xdelta3/examples/compare_test.c +++ /dev/null @@ -1,123 +0,0 @@ -#include -#include -#include -#include -#include - -#include "xdelta3.h" - -#define NUM (1<<20) -#define ITERS 100 - -/* From wikipedia on RDTSC */ -inline uint64_t rdtsc() { - uint32_t lo, hi; - asm volatile ("rdtsc" : "=a" (lo), "=d" (hi)); - return (uint64_t)hi << 32 | lo; -} - -typedef int (*test_func)(const char *s1, const char *s2, int n); - -void run_test(const char *buf1, const char *buf2, - const char *name, test_func func) { - uint64_t start, end; - uint64_t accum = 0; - int i, x; - - for (i = 0; i < ITERS; i++) { - start = rdtsc(); - x = func(buf1, buf2, NUM); - end = rdtsc(); - accum += end - start; - assert(x == NUM - 1); - } - - accum /= ITERS; - - printf("%s : %qu cycles\n", name, accum); -} - -/* Build w/ -fno-builtin for this to be fast, this assumes that there - * is a difference at s1[n-1] */ -int memcmp_fake(const char *s1, const char *s2, int n) { - int x = memcmp(s1, s2, n); - return x < 0 ? n - 1 : n + 1; -} - -#define UNALIGNED_OK 1 -static inline int -test2(const char *s1c, const char *s2c, int n) -{ - int i = 0; -#if UNALIGNED_OK - int nint = n / sizeof(int); - - if (nint >> 3) - { - int j = 0; - const int *s1 = (const int*)s1c; - const int *s2 = (const int*)s2c; - int nint_8 = nint - 8; - - while (i <= nint_8 && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++]) { } - - i = (i - 1) * sizeof(int); - } -#endif - - while (i < n && s1c[i] == s2c[i]) - { - i++; - } - return i; -} - -static inline int -test1(const char *s1c, const char *s2c, int n) { - int i = 0; - while (i < n && s1c[i] == s2c[i]) - { - i++; - } - return i; -} - -int main(/*int argc, char **argv*/) { - char *buf1 = malloc(NUM+1); - char *buf2 = malloc(NUM+1); - int i; - - for (i = 0; i < NUM; i++) { - buf1[i] = buf2[i] = rand(); - } - - buf2[NUM-1]++; - - printf ("ALIGNED\n"); - - run_test(buf1, buf2, "memcmp", &memcmp_fake); - run_test(buf1, buf2, "test1", &test1); - run_test(buf1, buf2, "test2", &test2); - - for (i = 0; i < NUM; i++) { - buf1[i] = buf2[i+1] = rand(); - } - - buf2[NUM]++; - - printf ("UNALIGNED\n"); - - run_test(buf1, buf2+1, "memcmp", &memcmp_fake); - run_test(buf1, buf2+1, "test1", &test1); - run_test(buf1, buf2+1, "test2", &test2); - - return 0; -} diff --git a/extern/xdelta3/examples/encode_decode_test.c b/extern/xdelta3/examples/encode_decode_test.c deleted file mode 100644 index 9f43092..0000000 --- a/extern/xdelta3/examples/encode_decode_test.c +++ /dev/null @@ -1,204 +0,0 @@ -// -// Permission to distribute this example by -// Copyright (C) 2007 Ralf Junker -// Ralf Junker -// http://www.yunqa.de/delphi/ - -//--------------------------------------------------------------------------- - -#include -#include -#include "xdelta3.h" -#include "xdelta3.c" - -//--------------------------------------------------------------------------- - -int code ( - int encode, - FILE* InFile, - FILE* SrcFile , - FILE* OutFile, - int BufSize ) -{ - int r, ret; - struct stat statbuf; - xd3_stream stream; - xd3_config config; - xd3_source source; - void* Input_Buf; - int Input_Buf_Read; - - if (BufSize < XD3_ALLOCSIZE) - BufSize = XD3_ALLOCSIZE; - - memset (&stream, 0, sizeof (stream)); - memset (&source, 0, sizeof (source)); - - xd3_init_config(&config, XD3_ADLER32); - config.winsize = BufSize; - xd3_config_stream(&stream, &config); - - if (SrcFile) - { - r = fstat(fileno(SrcFile), &statbuf); - if (r) - return r; - - source.blksize = BufSize; - source.curblk = malloc(source.blksize); - - /* Load 1st block of stream. */ - r = fseek(SrcFile, 0, SEEK_SET); - if (r) - return r; - source.onblk = fread((void*)source.curblk, 1, source.blksize, SrcFile); - source.curblkno = 0; - /* Set the stream. */ - xd3_set_source(&stream, &source); - } - - Input_Buf = malloc(BufSize); - - fseek(InFile, 0, SEEK_SET); - do - { - Input_Buf_Read = fread(Input_Buf, 1, BufSize, InFile); - if (Input_Buf_Read < BufSize) - { - xd3_set_flags(&stream, XD3_FLUSH | stream.flags); - } - xd3_avail_input(&stream, Input_Buf, Input_Buf_Read); - -process: - if (encode) - ret = xd3_encode_input(&stream); - else - ret = xd3_decode_input(&stream); - - switch (ret) - { - case XD3_INPUT: - { - fprintf (stderr,"XD3_INPUT\n"); - continue; - } - - case XD3_OUTPUT: - { - fprintf (stderr,"XD3_OUTPUT\n"); - r = fwrite(stream.next_out, 1, stream.avail_out, OutFile); - if (r != (int)stream.avail_out) - return r; - xd3_consume_output(&stream); - goto process; - } - - case XD3_GETSRCBLK: - { - fprintf (stderr,"XD3_GETSRCBLK %qd\n", source.getblkno); - if (SrcFile) - { - r = fseek(SrcFile, source.blksize * source.getblkno, SEEK_SET); - if (r) - return r; - source.onblk = fread((void*)source.curblk, 1, - source.blksize, SrcFile); - source.curblkno = source.getblkno; - } - goto process; - } - - case XD3_GOTHEADER: - { - fprintf (stderr,"XD3_GOTHEADER\n"); - goto process; - } - - case XD3_WINSTART: - { - fprintf (stderr,"XD3_WINSTART\n"); - goto process; - } - - case XD3_WINFINISH: - { - fprintf (stderr,"XD3_WINFINISH\n"); - goto process; - } - - default: - { - fprintf (stderr,"!!! INVALID %s %d !!!\n", - stream.msg, ret); - return ret; - } - - } - - } - while (Input_Buf_Read == BufSize); - - free(Input_Buf); - - free((void*)source.curblk); - xd3_close_stream(&stream); - xd3_free_stream(&stream); - - return 0; - -}; - - -int main(int argc, char* argv[]) -{ - FILE* InFile; - FILE* SrcFile; - FILE* OutFile; - int r; - - if (argc != 3) { - fprintf (stderr, "usage: %s source input\n", argv[0]); - return 1; - } - - char *input = argv[2]; - char *source = argv[1]; - const char *output = "encoded.testdata"; - const char *decoded = "decoded.testdata"; - - /* Encode */ - - InFile = fopen(input, "rb"); - SrcFile = fopen(source, "rb"); - OutFile = fopen(output, "wb"); - - r = code (1, InFile, SrcFile, OutFile, 0x1000); - - fclose(OutFile); - fclose(SrcFile); - fclose(InFile); - - if (r) { - fprintf (stderr, "Encode error: %d\n", r); - return r; - } - - /* Decode */ - - InFile = fopen(output, "rb"); - SrcFile = fopen(source, "rb"); - OutFile = fopen(decoded, "wb"); - - r = code (0, InFile, SrcFile, OutFile, 0x1000); - - fclose(OutFile); - fclose(SrcFile); - fclose(InFile); - - if (r) { - fprintf (stderr, "Decode error: %d\n", r); - return r; - } - - return 0; -} diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test.xcodeproj/project.pbxproj b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test.xcodeproj/project.pbxproj deleted file mode 100644 index d50d9f7..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test.xcodeproj/project.pbxproj +++ /dev/null @@ -1,389 +0,0 @@ -// !$*UTF8*$! -{ - archiveVersion = 1; - classes = { - }; - objectVersion = 46; - objects = { - -/* Begin PBXBuildFile section */ - B9001B65158D008900B9E855 /* xdelta3.c in Sources */ = {isa = PBXBuildFile; fileRef = B9001B63158D008900B9E855 /* xdelta3.c */; }; - B9313C3C158D11BA001C1F28 /* file_v1_to_v2.bin in Resources */ = {isa = PBXBuildFile; fileRef = B9313C39158D11BA001C1F28 /* file_v1_to_v2.bin */; }; - B9313C3D158D11BA001C1F28 /* file_v1.bin in Resources */ = {isa = PBXBuildFile; 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All rights reserved. -// - -#import - -@interface Xd3iOSAppDelegate : UIResponder - -@property (strong, nonatomic) UIWindow *window; - -@end diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSAppDelegate.m b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSAppDelegate.m deleted file mode 100644 index ad3fd8a..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSAppDelegate.m +++ /dev/null @@ -1,60 +0,0 @@ -// -// Xd3iOSAppDelegate.m -// xdelta3-ios-test -// -// Created by Joshua MacDonald on 6/16/12. -// Copyright (c) 2011, 2012 Joshua MacDonald. All rights reserved. -// - -#import "Xd3iOSAppDelegate.h" - -@implementation Xd3iOSAppDelegate - -@synthesize window = _window; - -- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions -{ - // Override point for customization after application launch. - return YES; -} - -- (void)applicationWillResignActive:(UIApplication *)application -{ - /* - Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. - Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game. - */ -} - -- (void)applicationDidEnterBackground:(UIApplication *)application -{ - /* - Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. - If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. - */ -} - -- (void)applicationWillEnterForeground:(UIApplication *)application -{ - /* - Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background. - */ -} - -- (void)applicationDidBecomeActive:(UIApplication *)application -{ - /* - Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. - */ -} - -- (void)applicationWillTerminate:(UIApplication *)application -{ - /* - Called when the application is about to terminate. - Save data if appropriate. - See also applicationDidEnterBackground:. - */ -} - -@end diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSViewController.h b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSViewController.h deleted file mode 100644 index 700f7f4..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSViewController.h +++ /dev/null @@ -1,20 +0,0 @@ -// -// Xd3iOSViewController.h -// xdelta3-ios-test -// -// Created by Joshua MacDonald on 6/16/12. -// Copyright (c) 2011, 2012 Joshua MacDonald. All rights reserved. -// - -#import - -@interface Xd3iOSViewController : UIViewController { - NSString *inputSeed; -} -- (IBAction)startTest:(id)sender; -@property (weak, nonatomic) IBOutlet UITextField *theSeed; -@property (weak, nonatomic) IBOutlet UITextView *theView; -@property (atomic, retain) NSMutableString *theOutput; -@property (nonatomic) BOOL inTest; - -@end diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSViewController.m b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSViewController.m deleted file mode 100644 index a874aca..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/Xd3iOSViewController.m +++ /dev/null @@ -1,169 +0,0 @@ -// -// Xd3iOSViewController.m -// xdelta3-ios-test -// -// Created by Joshua MacDonald on 6/16/12. -// Copyright (c) 2011, 2012 Joshua MacDonald. All rights reserved. -// - -#import "Xd3iOSViewController.h" -#include "xdelta3.h" -#include "dispatch/queue.h" -#include "Foundation/NSBundle.h" - -extern void (*xprintf_message_func)(const char* msg); -void print_to_view(const char* buf); -int xd3_main_cmdline(int argc, char **argv); -void do_localfile_test(void); -int compare_files(const char* file1, const char* file2); -Xd3iOSViewController *static_ptr; - -@implementation Xd3iOSViewController -@synthesize theSeed = _theSeed; -@synthesize theView = _theView; -@synthesize theOutput = _theOutput; -@synthesize inTest = _inTest; - -- (void)didReceiveMemoryWarning -{ - [super didReceiveMemoryWarning]; -} - -#pragma mark - View lifecycle - -- (void)viewDidLoad -{ - [super viewDidLoad]; -} - -- (void)viewDidUnload -{ - [self setTheSeed:nil]; - [self setTheView:nil]; - [self setTheView:nil]; - [super viewDidUnload]; -} - -- (void)viewWillAppear:(BOOL)animated -{ - [super viewWillAppear:animated]; -} - -- (void)viewDidAppear:(BOOL)animated -{ - [super viewDidAppear:animated]; -} - -- (void)viewWillDisappear:(BOOL)animated -{ - [super viewWillDisappear:animated]; -} - -- (void)viewDidDisappear:(BOOL)animated -{ - [super viewDidDisappear:animated]; -} - -- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation -{ - switch (interfaceOrientation) { - case UIInterfaceOrientationPortrait: - case UIInterfaceOrientationPortraitUpsideDown: - return YES; - default: - break; - } - return NO; -} -- (BOOL)textFieldShouldReturn:(UITextField*)theTextField { - if (theTextField == self.theSeed) { - [theTextField resignFirstResponder]; - } - return YES; -} -- (IBAction)startTest:(id)sender { - if (self.inTest) { - return; - } - self.inTest = YES; - NSString *seedString = self.theSeed.text; - if ([seedString length] == 0) { - seedString = @"RFC3284"; - } - static_ptr = self; - xprintf_message_func = &print_to_view; - self.theOutput = [[NSMutableString alloc] initWithFormat:@"Starting test (seed=%@)\n", seedString]; - self.theView.text = self.theOutput; - dispatch_queue_t mq = dispatch_get_main_queue(); - dispatch_queue_t dq = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); - dispatch_async(dq, ^{ - do_localfile_test(); - char *argv[] = { "xdelta3", "test", NULL }; - xd3_main_cmdline(2, argv); - print_to_view("Finished unittest: success"); - dispatch_async(mq, ^{ - self.inTest = NO; - }); - }); -} - -void printns_to_view(NSString* ns); -void printns_to_view(NSString* ns) { - dispatch_queue_t mq = dispatch_get_main_queue(); - dispatch_async(mq, ^{ - if ([static_ptr.theOutput length] < 25000) { - [static_ptr.theOutput appendString:ns]; - } else { - static_ptr.theOutput = [[NSMutableString alloc] initWithString:ns]; - } - static_ptr.theView.text = static_ptr.theOutput; - CGSize size = static_ptr.theView.contentSize; - [static_ptr.theView scrollRectToVisible:CGRectMake(0, size.height - 1, 1, 1) animated:NO]; - }); -} - -void print_to_view(const char* buf) { - NSString *ns = [NSString stringWithCString:buf encoding:NSASCIIStringEncoding]; - printns_to_view(ns); -} - -void do_localfile_test(void) { - NSBundle *bundle; - bundle = [NSBundle mainBundle]; - NSString *localfile1 = [bundle pathForResource:@"file_v1" ofType:@"bin"]; - NSString *localfile2 = [bundle pathForResource:@"file_v2" ofType:@"bin"]; - NSString *localfiled = [bundle pathForResource:@"file_v1_to_v2" ofType:@"bin"]; - printns_to_view([localfile1 stringByAppendingString:@"\n"]); - printns_to_view([localfile2 stringByAppendingString:@"\n"]); - printns_to_view([localfiled stringByAppendingString:@"\n"]); - NSString *tmpdir = NSTemporaryDirectory(); - NSString *tmpfile = [tmpdir stringByAppendingPathComponent:@"delta.tmp"]; - printns_to_view([tmpfile stringByAppendingString:@"\n"]); - char *argv[] = { - "xdelta3", "-dfvv", "-s", - (char*)[localfile1 UTF8String], - (char*)[localfiled UTF8String], - (char*)[tmpfile UTF8String] }; - xd3_main_cmdline(6, argv); - - NSFileManager *filemgr; - - filemgr = [NSFileManager defaultManager]; - - if ([filemgr contentsEqualAtPath: localfile2 andPath: tmpfile] == YES) { - printns_to_view(@"File contents match\n"); - } else { - NSError *err1 = NULL; - NSDictionary *d1 = [filemgr attributesOfItemAtPath: tmpfile error: &err1]; - if (err1 != NULL) { - printns_to_view([@"File localfile2 could not stat %s\n" stringByAppendingString: tmpfile]); - } else { - printns_to_view([@"File contents do not match!!!! tmpfile size=" stringByAppendingString: - [[NSMutableString alloc] initWithFormat:@"%llu\n", [d1 fileSize]]]); - } - compare_files([localfile2 UTF8String], [tmpfile UTF8String]); - } - print_to_view("Finished localfile test.\n"); -} - -@end diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/InfoPlist.strings b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/InfoPlist.strings deleted file mode 100644 index 477b28f..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/InfoPlist.strings +++ /dev/null @@ -1,2 +0,0 @@ -/* Localized versions of Info.plist keys */ - diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/MainStoryboard_iPad.storyboard b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/MainStoryboard_iPad.storyboard deleted file mode 100644 index 7581bbe..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/MainStoryboard_iPad.storyboard +++ /dev/null @@ -1,77 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/MainStoryboard_iPhone.storyboard b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/MainStoryboard_iPhone.storyboard deleted file mode 100644 index 08b2175..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/en.lproj/MainStoryboard_iPhone.storyboard +++ /dev/null @@ -1,27 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v1.bin b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v1.bin deleted file mode 100644 index 39e0c17..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v1.bin +++ /dev/null @@ -1,1378 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, - * 2008, 2009, 2010. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* To know more about Xdelta, start by reading xdelta3.c. If you are - * ready to use the API, continue reading here. There are two - * interfaces -- xd3_encode_input and xd3_decode_input -- plus a dozen - * or so related calls. This interface is styled after Zlib. */ - -#ifndef _XDELTA3_H_ -#define _XDELTA3_H_ - -#include -#include -#include -#include - -/****************************************************************/ - -/* Default configured value of stream->winsize. If the program - * supplies xd3_encode_input() with data smaller than winsize the - * stream will automatically buffer the input, otherwise the input - * buffer is used directly. - */ -#ifndef XD3_DEFAULT_WINSIZE -#define XD3_DEFAULT_WINSIZE (1U << 23) -#endif - -/* Default total size of the source window used in xdelta3-main.h */ -#ifndef XD3_DEFAULT_SRCWINSZ -#define XD3_DEFAULT_SRCWINSZ (1U << 26) -#endif - -/* When Xdelta requests a memory allocation for certain buffers, it - * rounds up to units of at least this size. The code assumes (and - * asserts) that this is a power-of-two. */ -#ifndef XD3_ALLOCSIZE -#define XD3_ALLOCSIZE (1U<<14) -#endif - -/* The XD3_HARDMAXWINSIZE parameter is a safety mechanism to protect - * decoders against malicious files. The decoder will never decode a - * window larger than this. If the file specifies VCD_TARGET the - * decoder may require two buffers of this size. - * - * 8-16MB is reasonable, probably don't need to go larger. */ -#ifndef XD3_HARDMAXWINSIZE -#define XD3_HARDMAXWINSIZE (1U<<24) -#endif -/* The IOPT_SIZE value sets the size of a buffer used to batch - * overlapping copy instructions before they are optimized by picking - * the best non-overlapping ranges. The larger this buffer, the - * longer a forced xd3_srcwin_setup() decision is held off. Setting - * this value to 0 causes an unlimited buffer to be used. */ -#ifndef XD3_DEFAULT_IOPT_SIZE -#define XD3_DEFAULT_IOPT_SIZE (1U<<15) -#endif - -/* The maximum distance backward to search for small matches */ -#ifndef XD3_DEFAULT_SPREVSZ -#define XD3_DEFAULT_SPREVSZ (1U<<18) -#endif - -/* The default compression level - */ -#ifndef XD3_DEFAULT_LEVEL -#define XD3_DEFAULT_LEVEL 3 -#endif - -#ifndef XD3_DEFAULT_SECONDARY_LEVEL -#define XD3_DEFAULT_SECONDARY_LEVEL 6 -#endif - -#ifndef XD3_USE_LARGEFILE64 -#define XD3_USE_LARGEFILE64 1 -#endif - -/* Sizes and addresses within VCDIFF windows are represented as usize_t - * - * For source-file offsets and total file sizes, total input and - * output counts, the xoff_t type is used. The decoder and encoder - * generally check for overflow of the xoff_t size (this is tested at - * the 32bit boundary [xdelta3-test.h]). - */ -#ifndef _WIN32 -#include -typedef unsigned int usize_t; -#else -#define WIN32_LEAN_AND_MEAN -#if XD3_USE_LARGEFILE64 -/* 64 bit file offsets: uses GetFileSizeEx and SetFilePointerEx. - * requires Win2000 or newer version of WinNT */ -#define WINVER 0x0500 -#define _WIN32_WINNT 0x0500 -#else -/* 32 bit (DWORD) file offsets: uses GetFileSize and - * SetFilePointer. compatible with win9x-me and WinNT4 */ -#define WINVER 0x0400 -#define _WIN32_WINNT 0x0400 -#endif -#include -typedef unsigned int usize_t; -#ifdef _MSC_VER -#define inline -typedef signed int ssize_t; -typedef unsigned char uint8_t; -typedef unsigned short uint16_t; -typedef unsigned long uint32_t; -typedef ULONGLONG uint64_t; -#else -/* mingw32, lcc and watcom provide a proper header */ -#include -#endif -#endif - -/* TODO: note that SIZEOF_USIZE_T is never set to 8, although it should be for - * a 64bit platform. OTOH, may be that using 32bits is appropriate even on a - * 64bit platform because we allocate large arrays of these values. */ -#if XD3_USE_LARGEFILE64 -#define __USE_FILE_OFFSET64 1 /* GLIBC: for 64bit fileops, ... ? */ -#ifndef _LARGEFILE_SOURCE -#define _LARGEFILE_SOURCE -#endif -#ifndef _FILE_OFFSET_BITS -#define _FILE_OFFSET_BITS 64 -#endif - -typedef uint64_t xoff_t; -#define SIZEOF_XOFF_T 8 -#define SIZEOF_USIZE_T 4 -#ifndef WIN32 -#define Q "ll" -#else -#define Q "I64" -#endif -#else -typedef uint32_t xoff_t; -#define SIZEOF_XOFF_T 4 -#define SIZEOF_USIZE_T 4 -#define Q -#endif - -#define USE_UINT32 (SIZEOF_USIZE_T == 4 || \ - SIZEOF_XOFF_T == 4 || REGRESSION_TEST) -#define USE_UINT64 (SIZEOF_USIZE_T == 8 || \ - SIZEOF_XOFF_T == 8 || REGRESSION_TEST) - -/* TODO: probably should do something better here. */ -#ifndef UNALIGNED_OK -#if defined(__i386__) || defined(__i486__) || defined(__i586__) || \ - defined(__i686__) || defined(_X86_) || defined(__x86_64__) -#define UNALIGNED_OK 1 -#else -#define UNALIGNED_OK 0 -#endif -#endif - -/**********************************************************************/ - -/* Whether to build the encoder, otherwise only build the decoder. */ -#ifndef XD3_ENCODER -#define XD3_ENCODER 1 -#endif - -/* The code returned when main() fails, also defined in system - includes. */ -#ifndef EXIT_FAILURE -#define EXIT_FAILURE 1 -#endif - -/* REGRESSION TEST enables the "xdelta3 test" command, which runs a - series of self-tests. */ -#ifndef REGRESSION_TEST -#define REGRESSION_TEST 0 -#endif - -/* XD3_DEBUG=1 enables assertions and various statistics. Levels > 1 - * enable some additional output only useful during development and - * debugging. */ -#ifndef XD3_DEBUG -#define XD3_DEBUG 0 -#endif - -#ifndef PYTHON_MODULE -#define PYTHON_MODULE 0 -#endif - -#ifndef SWIG_MODULE -#define SWIG_MODULE 0 -#endif - -/* There are three string matching functions supplied: one fast, one - * slow (default), and one soft-configurable. To disable any of - * these, use the following definitions. */ -#ifndef XD3_BUILD_SLOW -#define XD3_BUILD_SLOW 1 -#endif -#ifndef XD3_BUILD_FAST -#define XD3_BUILD_FAST 1 -#endif -#ifndef XD3_BUILD_FASTER -#define XD3_BUILD_FASTER 1 -#endif -#ifndef XD3_BUILD_FASTEST -#define XD3_BUILD_FASTEST 1 -#endif -#ifndef XD3_BUILD_SOFT -#define XD3_BUILD_SOFT 1 -#endif -#ifndef XD3_BUILD_DEFAULT -#define XD3_BUILD_DEFAULT 1 -#endif - -#if XD3_DEBUG -#include -#endif - -/* XPRINT. Debug output and VCDIFF_TOOLS functions report to stderr. - * I have used an irregular style to abbreviate [fprintf(stderr, "] as - * [DP(RINT "]. */ -#define DP fprintf -#define RINT stderr, - -typedef struct _xd3_stream xd3_stream; -typedef struct _xd3_source xd3_source; -typedef struct _xd3_hash_cfg xd3_hash_cfg; -typedef struct _xd3_smatcher xd3_smatcher; -typedef struct _xd3_rinst xd3_rinst; -typedef struct _xd3_dinst xd3_dinst; -typedef struct _xd3_hinst xd3_hinst; -typedef struct _xd3_winst xd3_winst; -typedef struct _xd3_rpage xd3_rpage; -typedef struct _xd3_addr_cache xd3_addr_cache; -typedef struct _xd3_output xd3_output; -typedef struct _xd3_desect xd3_desect; -typedef struct _xd3_iopt_buflist xd3_iopt_buflist; -typedef struct _xd3_rlist xd3_rlist; -typedef struct _xd3_sec_type xd3_sec_type; -typedef struct _xd3_sec_cfg xd3_sec_cfg; -typedef struct _xd3_sec_stream xd3_sec_stream; -typedef struct _xd3_config xd3_config; -typedef struct _xd3_code_table_desc xd3_code_table_desc; -typedef struct _xd3_code_table_sizes xd3_code_table_sizes; -typedef struct _xd3_slist xd3_slist; -typedef struct _xd3_whole_state xd3_whole_state; -typedef struct _xd3_wininfo xd3_wininfo; - -/* The stream configuration has three callbacks functions, all of - * which may be supplied with NULL values. If config->getblk is - * provided as NULL, the stream returns XD3_GETSRCBLK. */ - -typedef void* (xd3_alloc_func) (void *opaque, - usize_t items, - usize_t size); -typedef void (xd3_free_func) (void *opaque, - void *address); - -typedef int (xd3_getblk_func) (xd3_stream *stream, - xd3_source *source, - xoff_t blkno); - -/* These are internal functions to delay construction of encoding - * tables and support alternate code tables. See the comments & code - * enabled by GENERIC_ENCODE_TABLES. */ - -typedef const xd3_dinst* (xd3_code_table_func) (void); -typedef int (xd3_comp_table_func) (xd3_stream *stream, - const uint8_t **data, - usize_t *size); - - - -#if XD3_DEBUG -#define XD3_ASSERT(x) \ - do { if (! (x)) { DP(RINT "%s:%d: XD3 assertion failed: %s\n", __FILE__, __LINE__, #x); \ - abort (); } } while (0) -#else -#define XD3_ASSERT(x) (void)0 -#endif /* XD3_DEBUG */ - -#ifdef __GNUC__ -#ifndef max -#define max(x,y) ({ \ - const typeof(x) _x = (x); \ - const typeof(y) _y = (y); \ - (void) (&_x == &_y); \ - _x > _y ? _x : _y; }) -#endif /* __GNUC__ */ - -#ifndef min -#define min(x,y) ({ \ - const typeof(x) _x = (x); \ - const typeof(y) _y = (y); \ - (void) (&_x == &_y); \ - _x < _y ? _x : _y; }) -#endif -#else /* __GNUC__ */ -#ifndef max -#define max(x,y) ((x) < (y) ? (y) : (x)) -#endif -#ifndef min -#define min(x,y) ((x) < (y) ? (x) : (y)) -#endif -#endif /* __GNUC__ */ - -/**************************************************************** - PUBLIC ENUMS - ******************************************************************/ - -/* These are the five ordinary status codes returned by the - * xd3_encode_input() and xd3_decode_input() state machines. */ -typedef enum { - - /* An application must be prepared to handle these five return - * values from either xd3_encode_input or xd3_decode_input, except - * in the case of no-source compression, in which case XD3_GETSRCBLK - * is never returned. More detailed comments for these are given in - * xd3_encode_input and xd3_decode_input comments, below. */ - XD3_INPUT = -17703, /* need input */ - XD3_OUTPUT = -17704, /* have output */ - XD3_GETSRCBLK = -17705, /* need a block of source input (with no - * xd3_getblk function), a chance to do - * non-blocking read. */ - XD3_GOTHEADER = -17706, /* (decode-only) after the initial VCDIFF & - first window header */ - XD3_WINSTART = -17707, /* notification: returned before a window is - * processed, giving a chance to - * XD3_SKIP_WINDOW or not XD3_SKIP_EMIT that - * window. */ - XD3_WINFINISH = -17708, /* notification: returned after - encode/decode & output for a window */ - XD3_TOOFARBACK = -17709, /* (encoder only) may be returned by - getblk() if the block is too old */ - XD3_INTERNAL = -17710, /* internal error */ - XD3_INVALID = -17711, /* invalid config */ - XD3_INVALID_INPUT = -17712, /* invalid input/decoder error */ - XD3_NOSECOND = -17713, /* when secondary compression finds no - improvement. */ - XD3_UNIMPLEMENTED = -17714, /* currently VCD_TARGET */ -} xd3_rvalues; - -/* special values in config->flags */ -typedef enum -{ - XD3_JUST_HDR = (1 << 1), /* used by VCDIFF tools, see - xdelta3-main.h. */ - XD3_SKIP_WINDOW = (1 << 2), /* used by VCDIFF tools, see - xdelta3-main.h. */ - XD3_SKIP_EMIT = (1 << 3), /* used by VCDIFF tools, see - xdelta3-main.h. */ - XD3_FLUSH = (1 << 4), /* flush the stream buffer to - prepare for - xd3_stream_close(). */ - - XD3_SEC_DJW = (1 << 5), /* use DJW static huffman */ - XD3_SEC_FGK = (1 << 6), /* use FGK adaptive huffman */ - XD3_SEC_TYPE = (XD3_SEC_DJW | XD3_SEC_FGK), - - XD3_SEC_NODATA = (1 << 7), /* disable secondary compression of - the data section. */ - XD3_SEC_NOINST = (1 << 8), /* disable secondary compression of - the inst section. */ - XD3_SEC_NOADDR = (1 << 9), /* disable secondary compression of - the addr section. */ - - XD3_SEC_NOALL = (XD3_SEC_NODATA | XD3_SEC_NOINST | XD3_SEC_NOADDR), - - XD3_ADLER32 = (1 << 10), /* enable checksum computation in - the encoder. */ - XD3_ADLER32_NOVER = (1 << 11), /* disable checksum verification in - the decoder. */ - - XD3_ALT_CODE_TABLE = (1 << 12), /* for testing th - e alternate code table encoding. */ - - XD3_NOCOMPRESS = (1 << 13), /* disable ordinary data - * compression feature, only search - * the source, not the target. */ - XD3_BEGREEDY = (1 << 14), /* disable the "1.5-pass - * algorithm", instead use greedy - * matching. Greedy is off by - * default. */ - XD3_ADLER32_RECODE = (1 << 15), /* used by "recode". */ - - /* 4 bits to set the compression level the same as the command-line - * setting -1 through -9 (-0 corresponds to the XD3_NOCOMPRESS flag, - * and is independent of compression level). This is for - * convenience, especially with xd3_encode_memory(). */ - - XD3_COMPLEVEL_SHIFT = 20, /* 20 - 24 */ - XD3_COMPLEVEL_MASK = (0xF << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_1 = (1 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_2 = (2 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_3 = (3 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_6 = (6 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_9 = (9 << XD3_COMPLEVEL_SHIFT), - -} xd3_flags; - -/* The values of this enumeration are set in xd3_config using the - * smatch_cfg variable. It can be set to default, slow, fast, etc., - * and soft. */ -typedef enum -{ - XD3_SMATCH_DEFAULT = 0, /* Flags may contain XD3_COMPLEVEL bits, - else default. */ - XD3_SMATCH_SLOW = 1, - XD3_SMATCH_FAST = 2, - XD3_SMATCH_FASTER = 3, - XD3_SMATCH_FASTEST = 4, - XD3_SMATCH_SOFT = 5, -} xd3_smatch_cfg; - -/********************************************************************* - PRIVATE ENUMS -**********************************************************************/ - -/* stream->match_state is part of the xd3_encode_input state machine - * for source matching: - * - * 1. the XD3_GETSRCBLK block-read mechanism means reentrant matching - * 2. this state spans encoder windows: a match and end-of-window - * will continue in the next 3. the initial target byte and source - * byte are a presumed match, to avoid some computation in case the - * inputs are identical. - */ -typedef enum { - - MATCH_TARGET = 0, /* in this state, attempt to match the start of - * the target with the previously set source - * address (initially 0). */ - MATCH_BACKWARD = 1, /* currently expanding a match backward in the - source/target. */ - MATCH_FORWARD = 2, /* currently expanding a match forward in the - source/target. */ - MATCH_SEARCHING = 3, /* currently searching for a match. */ - -} xd3_match_state; - -/* The xd3_encode_input state machine steps through these states in - * the following order. The matcher is reentrant and returns - * XD3_INPUT whenever it requires more data. After receiving - * XD3_INPUT, if the application reads EOF it should call - * xd3_stream_close(). - */ -typedef enum { - - ENC_INIT = 0, /* xd3_encode_input has never been called. */ - ENC_INPUT = 1, /* waiting for xd3_avail_input () to be called. */ - ENC_SEARCH = 2, /* currently searching for matches. */ - ENC_INSTR = 3, /* currently formatting output. */ - ENC_FLUSH = 4, /* currently emitting output. */ - ENC_POSTOUT = 5, /* after an output section. */ - ENC_POSTWIN = 6, /* after all output sections. */ - ENC_ABORTED = 7, /* abort. */ -} xd3_encode_state; - -/* The xd3_decode_input state machine steps through these states in - * the following order. The matcher is reentrant and returns - * XD3_INPUT whenever it requires more data. After receiving - * XD3_INPUT, if the application reads EOF it should call - * xd3_stream_close(). - * - * 0-8: the VCDIFF header - * 9-18: the VCDIFF window header - * 19-21: the three primary sections: data, inst, addr - * 22: producing output: returns XD3_OUTPUT, possibly XD3_GETSRCBLK, - * 23: return XD3_WINFINISH, set state=9 to decode more input - */ -typedef enum { - - DEC_VCHEAD = 0, /* VCDIFF header */ - DEC_HDRIND = 1, /* header indicator */ - - DEC_SECONDID = 2, /* secondary compressor ID */ - - DEC_TABLEN = 3, /* code table length */ - DEC_NEAR = 4, /* code table near */ - DEC_SAME = 5, /* code table same */ - DEC_TABDAT = 6, /* code table data */ - - DEC_APPLEN = 7, /* application data length */ - DEC_APPDAT = 8, /* application data */ - - DEC_WININD = 9, /* window indicator */ - - DEC_CPYLEN = 10, /* copy window length */ - DEC_CPYOFF = 11, /* copy window offset */ - - DEC_ENCLEN = 12, /* length of delta encoding */ - DEC_TGTLEN = 13, /* length of target window */ - DEC_DELIND = 14, /* delta indicator */ - - DEC_DATALEN = 15, /* length of ADD+RUN data */ - DEC_INSTLEN = 16, /* length of instruction data */ - DEC_ADDRLEN = 17, /* length of address data */ - - DEC_CKSUM = 18, /* window checksum */ - - DEC_DATA = 19, /* data section */ - DEC_INST = 20, /* instruction section */ - DEC_ADDR = 21, /* address section */ - - DEC_EMIT = 22, /* producing data */ - - DEC_FINISH = 23, /* window finished */ - - DEC_ABORTED = 24, /* xd3_abort_stream */ -} xd3_decode_state; - -/************************************************************ - internal types - ************************************************************/ - -/* instruction lists used in the IOPT buffer */ -struct _xd3_rlist -{ - xd3_rlist *next; - xd3_rlist *prev; -}; - -/* the raw encoding of an instruction used in the IOPT buffer */ -struct _xd3_rinst -{ - uint8_t type; - uint8_t xtra; - uint8_t code1; - uint8_t code2; - usize_t pos; - usize_t size; - xoff_t addr; - xd3_rlist link; -}; - -/* the code-table form of an single- or double-instruction */ -struct _xd3_dinst -{ - uint8_t type1; - uint8_t size1; - uint8_t type2; - uint8_t size2; -}; - -/* the decoded form of a single (half) instruction. */ -struct _xd3_hinst -{ - uint8_t type; - uint32_t size; /* TODO: why decode breaks if this is usize_t? */ - uint32_t addr; /* TODO: why decode breaks if this is usize_t? */ -}; - -/* the form of a whole-file instruction */ -struct _xd3_winst -{ - uint8_t type; /* RUN, ADD, COPY */ - uint8_t mode; /* 0, VCD_SOURCE, VCD_TARGET */ - usize_t size; - xoff_t addr; - xoff_t position; /* absolute position of this inst */ -}; - -/* used by the encoder to buffer output in sections. list of blocks. */ -struct _xd3_output -{ - uint8_t *base; - usize_t next; - usize_t avail; - xd3_output *next_page; -}; - -/* used by the decoder to buffer input in sections. */ -struct _xd3_desect -{ - const uint8_t *buf; - const uint8_t *buf_max; - uint32_t size; /* TODO: why decode breaks if this is usize_t? */ - usize_t pos; - - /* used in xdelta3-decode.h */ - uint8_t *copied1; - usize_t alloc1; - - /* used in xdelta3-second.h */ - uint8_t *copied2; - usize_t alloc2; -}; - -/* the VCDIFF address cache, see the RFC */ -struct _xd3_addr_cache -{ - usize_t s_near; - usize_t s_same; - usize_t next_slot; /* the circular index for near */ - usize_t *near_array; /* array of size s_near */ - usize_t *same_array; /* array of size s_same*256 */ -}; - -/* the IOPT buffer list is just a list of buffers, which may be allocated - * during encode when using an unlimited buffer. */ -struct _xd3_iopt_buflist -{ - xd3_rinst *buffer; - xd3_iopt_buflist *next; -}; - -/* This is the record of a pre-compiled configuration, a subset of - xd3_config. */ -struct _xd3_smatcher -{ - const char *name; - int (*string_match) (xd3_stream *stream); - usize_t large_look; - usize_t large_step; - usize_t small_look; - usize_t small_chain; - usize_t small_lchain; - usize_t max_lazy; - usize_t long_enough; -}; - -/* hash table size & power-of-two hash function. */ -struct _xd3_hash_cfg -{ - usize_t size; - usize_t shift; - usize_t mask; -}; - -/* the sprev list */ -struct _xd3_slist -{ - usize_t last_pos; -}; - -/* window info (for whole state) */ -struct _xd3_wininfo { - xoff_t offset; - usize_t length; - uint32_t adler32; -}; - -/* whole state for, e.g., merge */ -struct _xd3_whole_state { - usize_t addslen; - uint8_t *adds; - usize_t adds_alloc; - - usize_t instlen; - xd3_winst *inst; - usize_t inst_alloc; - - usize_t wininfolen; - xd3_wininfo *wininfo; - usize_t wininfo_alloc; - - xoff_t length; -}; - -/******************************************************************** - public types - *******************************************************************/ - -/* Settings for the secondary compressor. */ -struct _xd3_sec_cfg -{ - int data_type; /* Which section. (set automatically) */ - usize_t ngroups; /* Number of DJW Huffman groups. */ - usize_t sector_size; /* Sector size. */ - int inefficient; /* If true, ignore efficiency check [avoid XD3_NOSECOND]. */ -}; - -/* This is the user-visible stream configuration. */ -struct _xd3_config -{ - usize_t winsize; /* The encoder window size. */ - usize_t sprevsz; /* How far back small string - matching goes */ - usize_t iopt_size; /* entries in the - instruction-optimizing - buffer */ - usize_t srcwin_maxsz; /* srcwin_size grows by a factor - of 2 when no matches are - found. encoder will not seek - back further than this. */ - - xd3_getblk_func *getblk; /* The three callbacks. */ - xd3_alloc_func *alloc; - xd3_free_func *freef; - void *opaque; /* Not used. */ - int flags; /* stream->flags are initialized - * from xd3_config & never - * modified by the library. Use - * xd3_set_flags to modify flags - * settings mid-stream. */ - - xd3_sec_cfg sec_data; /* Secondary compressor config: data */ - xd3_sec_cfg sec_inst; /* Secondary compressor config: inst */ - xd3_sec_cfg sec_addr; /* Secondary compressor config: addr */ - - xd3_smatch_cfg smatch_cfg; /* See enum: use fields below for - soft config */ - xd3_smatcher smatcher_soft; -}; - -/* The primary source file object. You create one of these objects and - * initialize the first four fields. This library maintains the next - * 5 fields. The configured getblk implementation is responsible for - * setting the final 3 fields when called (and/or when XD3_GETSRCBLK - * is returned). - */ -struct _xd3_source -{ - /* you set */ - usize_t blksize; /* block size */ - const char *name; /* its name, for debug/print - purposes */ - void *ioh; /* opaque handle */ - - /* getblk sets */ - xoff_t curblkno; /* current block number: client - sets after getblk request */ - usize_t onblk; /* number of bytes on current - block: client sets, must be >= 0 - and <= blksize */ - const uint8_t *curblk; /* current block array: client - sets after getblk request */ - - /* xd3 sets */ - usize_t srclen; /* length of this source window */ - xoff_t srcbase; /* offset of this source window - in the source itself */ - int shiftby; /* for power-of-two blocksizes */ - int maskby; /* for power-of-two blocksizes */ - xoff_t cpyoff_blocks; /* offset of dec_cpyoff in blocks */ - usize_t cpyoff_blkoff; /* offset of copy window in - blocks, remainder */ - xoff_t getblkno; /* request block number: xd3 sets - current getblk request */ - - /* See xd3_getblk() */ - xoff_t max_blkno; /* Maximum block, if eof is known, - * otherwise, equals frontier_blkno - * (initially 0). */ - xoff_t frontier_blkno; /* If eof is unknown, the next - * source position to be read. - * Otherwise, equal to - * max_blkno. */ - usize_t onlastblk; /* Number of bytes on max_blkno */ - int eof_known; /* Set to true when the first - * partial block is read. */ -}; - -/* The primary xd3_stream object, used for encoding and decoding. You - * may access only two fields: avail_out, next_out. Use the methods - * above to operate on xd3_stream. */ -struct _xd3_stream -{ - /* input state */ - const uint8_t *next_in; /* next input byte */ - usize_t avail_in; /* number of bytes available at - next_in */ - xoff_t total_in; /* how many bytes in */ - - /* output state */ - uint8_t *next_out; /* next output byte */ - usize_t avail_out; /* number of bytes available at - next_out */ - usize_t space_out; /* total out space */ - xoff_t current_window; /* number of windows encoded/decoded */ - xoff_t total_out; /* how many bytes out */ - - /* to indicate an error, xd3 sets */ - const char *msg; /* last error message, NULL if - no error */ - - /* source configuration */ - xd3_source *src; /* source array */ - - /* encoder memory configuration */ - usize_t winsize; /* suggested window size */ - usize_t sprevsz; /* small string, previous window - size (power of 2) */ - usize_t sprevmask; /* small string, previous window - size mask */ - usize_t iopt_size; - usize_t iopt_unlimited; - usize_t srcwin_maxsz; - - /* general configuration */ - xd3_getblk_func *getblk; /* set nxtblk, nxtblkno to scanblkno */ - xd3_alloc_func *alloc; /* malloc function */ - xd3_free_func *free; /* free function */ - void* opaque; /* private data object passed to - alloc, free, and getblk */ - int flags; /* various options */ - - /* secondary compressor configuration */ - xd3_sec_cfg sec_data; /* Secondary compressor config: data */ - xd3_sec_cfg sec_inst; /* Secondary compressor config: inst */ - xd3_sec_cfg sec_addr; /* Secondary compressor config: addr */ - - xd3_smatcher smatcher; - - usize_t *large_table; /* table of large checksums */ - xd3_hash_cfg large_hash; /* large hash config */ - - usize_t *small_table; /* table of small checksums */ - xd3_slist *small_prev; /* table of previous offsets, - circular linked list */ - int small_reset; /* true if small table should - be reset */ - - xd3_hash_cfg small_hash; /* small hash config */ - xd3_addr_cache acache; /* the vcdiff address cache */ - xd3_encode_state enc_state; /* state of the encoder */ - - usize_t taroff; /* base offset of the target input */ - usize_t input_position; /* current input position */ - usize_t min_match; /* current minimum match - length, avoids redundent - matches */ - usize_t unencoded_offset; /* current input, first - * unencoded offset. this value - * is <= the first instruction's - * position in the iopt buffer, - * if there is at least one - * match in the buffer. */ - - // SRCWIN - // these variables plus srcwin_maxsz above (set by config) - int srcwin_decided; /* boolean: true if srclen and - srcbase have been - decided. */ - int srcwin_decided_early; /* boolean: true if srclen - and srcbase were - decided early. */ - xoff_t srcwin_cksum_pos; /* Source checksum position */ - - // MATCH - xd3_match_state match_state; /* encoder match state */ - xoff_t match_srcpos; /* current match source - position relative to - srcbase */ - xoff_t match_last_srcpos; /* previously attempted - * srcpos, to avoid loops. */ - xoff_t match_minaddr; /* smallest matching address to - * set window params (reset each - * window xd3_encode_reset) */ - xoff_t match_maxaddr; /* largest matching address to - * set window params (reset each - * window xd3_encode_reset) */ - usize_t match_back; /* match extends back so far */ - usize_t match_maxback; /* match extends back maximum */ - usize_t match_fwd; /* match extends forward so far */ - usize_t match_maxfwd; /* match extends forward maximum */ - - xoff_t maxsrcaddr; /* address of the last source - match (across windows) */ - - uint8_t *buf_in; /* for saving buffered input */ - usize_t buf_avail; /* amount of saved input */ - const uint8_t *buf_leftover; /* leftover content of next_in - (i.e., user's buffer) */ - usize_t buf_leftavail; /* amount of leftover content */ - - xd3_output *enc_current; /* current output buffer */ - xd3_output *enc_free; /* free output buffers */ - xd3_output *enc_heads[4]; /* array of encoded outputs: - head of chain */ - xd3_output *enc_tails[4]; /* array of encoded outputs: - tail of chain */ - uint32_t recode_adler32; /* set the adler32 checksum - * during "recode". */ - - xd3_rlist iopt_used; /* instruction optimizing buffer */ - xd3_rlist iopt_free; - xd3_rinst *iout; /* next single instruction */ - xd3_iopt_buflist *iopt_alloc; - - const uint8_t *enc_appheader; /* application header to encode */ - usize_t enc_appheadsz; /* application header size */ - - /* decoder stuff */ - xd3_decode_state dec_state; /* current DEC_XXX value */ - usize_t dec_hdr_ind; /* VCDIFF header indicator */ - usize_t dec_win_ind; /* VCDIFF window indicator */ - usize_t dec_del_ind; /* VCDIFF delta indicator */ - - uint8_t dec_magic[4]; /* First four bytes */ - usize_t dec_magicbytes; /* Magic position. */ - - usize_t dec_secondid; /* Optional secondary compressor ID. */ - - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_codetblsz; /* Optional code table: length. */ - uint8_t *dec_codetbl; /* Optional code table: storage. */ - usize_t dec_codetblbytes; /* Optional code table: position. */ - - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_appheadsz; /* Optional application header: - size. */ - uint8_t *dec_appheader; /* Optional application header: - storage */ - usize_t dec_appheadbytes; /* Optional application header: - position. */ - - usize_t dec_cksumbytes; /* Optional checksum: position. */ - uint8_t dec_cksum[4]; /* Optional checksum: storage. */ - uint32_t dec_adler32; /* Optional checksum: value. */ - - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_cpylen; /* length of copy window - (VCD_SOURCE or VCD_TARGET) */ - xoff_t dec_cpyoff; /* offset of copy window - (VCD_SOURCE or VCD_TARGET) */ - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_enclen; /* length of delta encoding */ - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_tgtlen; /* length of target window */ - -#if USE_UINT64 - uint64_t dec_64part; /* part of a decoded uint64_t */ -#endif -#if USE_UINT32 - uint32_t dec_32part; /* part of a decoded uint32_t */ -#endif - - xoff_t dec_winstart; /* offset of the start of - current target window */ - xoff_t dec_window_count; /* == current_window + 1 in - DEC_FINISH */ - usize_t dec_winbytes; /* bytes of the three sections - so far consumed */ - usize_t dec_hdrsize; /* VCDIFF + app header size */ - - const uint8_t *dec_tgtaddrbase; /* Base of decoded target - addresses (addr >= - dec_cpylen). */ - const uint8_t *dec_cpyaddrbase; /* Base of decoded copy - addresses (addr < - dec_cpylen). */ - - usize_t dec_position; /* current decoder position - counting the cpylen - offset */ - usize_t dec_maxpos; /* maximum decoder position - counting the cpylen - offset */ - xd3_hinst dec_current1; /* current instruction */ - xd3_hinst dec_current2; /* current instruction */ - - uint8_t *dec_buffer; /* Decode buffer */ - uint8_t *dec_lastwin; /* In case of VCD_TARGET, the - last target window. */ - usize_t dec_lastlen; /* length of the last target - window */ - xoff_t dec_laststart; /* offset of the start of last - target window */ - usize_t dec_lastspace; /* allocated space of last - target window, for reuse */ - - xd3_desect inst_sect; /* staging area for decoding - window sections */ - xd3_desect addr_sect; - xd3_desect data_sect; - - xd3_code_table_func *code_table_func; - xd3_comp_table_func *comp_table_func; - const xd3_dinst *code_table; - const xd3_code_table_desc *code_table_desc; - xd3_dinst *code_table_alloc; - - /* secondary compression */ - const xd3_sec_type *sec_type; - xd3_sec_stream *sec_stream_d; - xd3_sec_stream *sec_stream_i; - xd3_sec_stream *sec_stream_a; - - /* state for reconstructing whole files (e.g., for merge), this only - * supports loading USIZE_T_MAX instructions, adds, etc. */ - xd3_whole_state whole_target; - - /* statistics */ - xoff_t n_scpy; - xoff_t n_tcpy; - xoff_t n_add; - xoff_t n_run; - - xoff_t l_scpy; - xoff_t l_tcpy; - xoff_t l_add; - xoff_t l_run; - - usize_t i_slots_used; - -#if XD3_DEBUG - usize_t large_ckcnt; - - /* memory usage */ - usize_t alloc_cnt; - usize_t free_cnt; -#endif -}; - -/************************************************************************** - PUBLIC FUNCTIONS - **************************************************************************/ - -/* This function configures an xd3_stream using the provided in-memory - * input buffer, source buffer, output buffer, and flags. The output - * array must be large enough or else ENOSPC will be returned. This - * is the simplest in-memory encoding interface. */ -int xd3_encode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output_buffer, - usize_t *output_size, - usize_t avail_output, - int flags); - -/* The reverse of xd3_encode_memory. */ -int xd3_decode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output_buf, - usize_t *output_size, - usize_t avail_output, - int flags); - -/* This function encodes an in-memory input using a pre-configured - * xd3_stream. This allows the caller to set a variety of options - * which are not available in the xd3_encode/decode_memory() - * functions. - * - * The output array must be large enough to hold the output or else - * ENOSPC is returned. The source (if any) should be set using - * xd3_set_source_and_size() with a single-block xd3_source. This - * calls the underlying non-blocking interfaces, - * xd3_encode/decode_input(), handling the necessary input/output - * states. This method may be considered a reference for any - * application using xd3_encode_input() directly. - * - * xd3_stream stream; - * xd3_config config; - * xd3_source src; - * - * memset (& src, 0, sizeof (src)); - * memset (& stream, 0, sizeof (stream)); - * memset (& config, 0, sizeof (config)); - * - * if (source != NULL) - * { - * src.size = source_size; - * src.blksize = source_size; - * src.curblkno = 0; - * src.onblk = source_size; - * src.curblk = source; - * xd3_set_source(&stream, &src); - * } - * - * config.flags = flags; - * config.srcwin_maxsz = source_size; - * config.winsize = input_size; - * - * ... set smatcher, appheader, encoding-table, compression-level, etc. - * - * xd3_config_stream(&stream, &config); - * xd3_encode_stream(&stream, ...); - * xd3_free_stream(&stream); - */ -int xd3_encode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t avail_output); - -/* The reverse of xd3_encode_stream. */ -int xd3_decode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t avail_size); - -/* This is the non-blocking interface. - * - * Handling input and output states is the same for encoding or - * decoding using the xd3_avail_input() and xd3_consume_output() - * routines, inlined below. - * - * Return values: - * - * XD3_INPUT: the process requires more input: call - * xd3_avail_input() then repeat - * - * XD3_OUTPUT: the process has more output: read stream->next_out, - * stream->avail_out, then call xd3_consume_output(), - * then repeat - * - * XD3_GOTHEADER: (decoder-only) notification returned following the - * VCDIFF header and first window header. the decoder - * may use the header to configure itself. - * - * XD3_WINSTART: a general notification returned once for each - * window except the 0-th window, which is implied by - * XD3_GOTHEADER. It is recommended to use a - * switch-stmt such as: - * - * ... - * again: - * switch ((ret = xd3_decode_input (stream))) { - * case XD3_GOTHEADER: { - * assert(stream->current_window == 0); - * stuff; - * } - * // fallthrough - * case XD3_WINSTART: { - * something(stream->current_window); - * goto again; - * } - * ... - * - * XD3_WINFINISH: a general notification, following the complete - * input & output of a window. at this point, - * stream->total_in and stream->total_out are consistent - * for either encoding or decoding. - * - * XD3_GETSRCBLK: If the xd3_getblk() callback is NULL, this value - * is returned to initiate a non-blocking source read. - */ -int xd3_decode_input (xd3_stream *stream); -int xd3_encode_input (xd3_stream *stream); - -/* The xd3_config structure is used to initialize a stream - all data - * is copied into stream so config may be a temporary variable. See - * the [documentation] or comments on the xd3_config structure. */ -int xd3_config_stream (xd3_stream *stream, - xd3_config *config); - -/* Since Xdelta3 doesn't open any files, xd3_close_stream is just an - * error check that the stream is in a proper state to be closed: this - * means the encoder is flushed and the decoder is at a window - * boundary. The application is responsible for freeing any of the - * resources it supplied. */ -int xd3_close_stream (xd3_stream *stream); - -/* This arranges for closes the stream to succeed. Does not free the - * stream.*/ -void xd3_abort_stream (xd3_stream *stream); - -/* xd3_free_stream frees all memory allocated for the stream. The - * application is responsible for freeing any of the resources it - * supplied. */ -void xd3_free_stream (xd3_stream *stream); - -/* This function informs the encoder or decoder that source matching - * (i.e., delta-compression) is possible. For encoding, this should - * be called before the first xd3_encode_input. A NULL source is - * ignored. For decoding, this should be called before the first - * window is decoded, but the appheader may be read first - * (XD3_GOTHEADER). After decoding the header, call xd3_set_source() - * if you have a source file. Note: if (stream->dec_win_ind & VCD_SOURCE) - * is true, it means the first window expects there to be a source file. - */ -int xd3_set_source (xd3_stream *stream, - xd3_source *source); - -/* If the source size is known, call this instead of xd3_set_source(). - * to avoid having stream->getblk called (and/or to avoid XD3_GETSRCBLK). - * - * Follow these steps: - xd3_source source; - memset(&source, 0, sizeof(source)); - source.blksize = size; - source.onblk = size; - source.curblk = buf; - source.curblkno = 0; - int ret = xd3_set_source_and_size(&stream, &source, size); - ... - */ -int xd3_set_source_and_size (xd3_stream *stream, - xd3_source *source, - xoff_t source_size); - -/* This should be called before the first call to xd3_encode_input() - * to include application-specific data in the VCDIFF header. */ -void xd3_set_appheader (xd3_stream *stream, - const uint8_t *data, - usize_t size); - -/* xd3_get_appheader may be called in the decoder after XD3_GOTHEADER. - * For convenience, the decoder always adds a single byte padding to - * the end of the application header, which is set to zero in case the - * application header is a string. */ -int xd3_get_appheader (xd3_stream *stream, - uint8_t **data, - usize_t *size); - -/* To generate a VCDIFF encoded delta with xd3_encode_init() from - * another format, use: - * - * xd3_encode_init_partial() -- initialze encoder state (w/o hash tables) - * xd3_init_cache() -- reset VCDIFF address cache - * xd3_found_match() -- to report a copy instruction - * - * set stream->enc_state to ENC_INSTR and call xd3_encode_input as usual. - */ -int xd3_encode_init_partial (xd3_stream *stream); -void xd3_init_cache (xd3_addr_cache* acache); -int xd3_found_match (xd3_stream *stream, - usize_t pos, usize_t size, - xoff_t addr, int is_source); - -/* Gives an error string for xdelta3-speficic errors, returns NULL for - system errors */ -const char* xd3_strerror (int ret); - -/* For convenience, zero & initialize the xd3_config structure with - specified flags. */ -static inline -void xd3_init_config (xd3_config *config, - int flags) -{ - memset (config, 0, sizeof (*config)); - config->flags = flags; -} - -/* This supplies some input to the stream. - * - * For encoding, if the input is larger than the configured window - * size (xd3_config.winsize), the entire input will be consumed and - * encoded anyway. If you wish to strictly limit the window size, - * limit the buffer passed to xd3_avail_input to the window size. - * - * For encoding, if the input is smaller than the configured window - * size (xd3_config.winsize), the library will create a window-sized - * buffer and accumulate input until a full-sized window can be - * encoded. XD3_INPUT will be returned. The input must remain valid - * until the next time xd3_encode_input() returns XD3_INPUT. - * - * For decoding, the input will be consumed entirely before XD3_INPUT - * is returned again. - */ -static inline -void xd3_avail_input (xd3_stream *stream, - const uint8_t *idata, - usize_t isize) -{ - /* Even if isize is zero, the code expects a non-NULL idata. Why? - * It uses this value to determine whether xd3_avail_input has ever - * been called. If xd3_encode_input is called before - * xd3_avail_input it will return XD3_INPUT right away without - * allocating a stream->winsize buffer. This is to avoid an - * unwanted allocation. */ - XD3_ASSERT (idata != NULL || isize == 0); - - stream->next_in = idata; - stream->avail_in = isize; -} - -/* This acknowledges receipt of output data, must be called after any - * XD3_OUTPUT return. */ -static inline -void xd3_consume_output (xd3_stream *stream) -{ - stream->avail_out = 0; -} - -/* These are set for each XD3_WINFINISH return. */ -static inline -int xd3_encoder_used_source (xd3_stream *stream) { - return stream->src != NULL && stream->src->srclen > 0; -} -static inline -xoff_t xd3_encoder_srcbase (xd3_stream *stream) { - return stream->src->srcbase; -} -static inline -usize_t xd3_encoder_srclen (xd3_stream *stream) { - return stream->src->srclen; -} - -/* Checks for legal flag changes. */ -static inline -void xd3_set_flags (xd3_stream *stream, int flags) -{ - /* The bitwise difference should contain only XD3_FLUSH or - XD3_SKIP_WINDOW */ - XD3_ASSERT(((flags ^ stream->flags) & ~(XD3_FLUSH | XD3_SKIP_WINDOW)) == 0); - stream->flags = flags; -} - -/* Gives some extra information about the latest library error, if any - * is known. */ -static inline -const char* xd3_errstring (xd3_stream *stream) -{ - return stream->msg ? stream->msg : ""; -} - - -/* 64-bit divisions are expensive, which is why we require a - * power-of-two source->blksize. To relax this restriction is - * relatively easy, see the history for xd3_blksize_div(). */ -static inline -void xd3_blksize_div (const xoff_t offset, - const xd3_source *source, - xoff_t *blkno, - usize_t *blkoff) { - *blkno = (xoff_t) (offset >> source->shiftby); - *blkoff = (usize_t) (offset & source->maskby); - XD3_ASSERT (*blkoff < source->blksize); -} - -static inline -void xd3_blksize_add (xoff_t *blkno, - usize_t *blkoff, - const xd3_source *source, - const usize_t add) -{ - usize_t blkdiff; - - /* Does not check for overflow, checked in xdelta3-decode.h. */ - *blkoff += add; - blkdiff = *blkoff >> source->shiftby; - - if (blkdiff) - { - *blkno += blkdiff; - *blkoff &= source->maskby; - } - - XD3_ASSERT (*blkoff < source->blksize); -} - -#define XD3_NOOP 0U -#define XD3_ADD 1U -#define XD3_RUN 2U -#define XD3_CPY 3U /* XD3_CPY rtypes are represented as (XD3_CPY + - * copy-mode value) */ - -#if XD3_DEBUG -#define IF_DEBUG(x) x -#else -#define IF_DEBUG(x) -#endif -#if XD3_DEBUG > 1 -#define IF_DEBUG1(x) x -#else -#define IF_DEBUG1(x) -#endif -#if XD3_DEBUG > 2 -#define IF_DEBUG2(x) x -#else -#define IF_DEBUG2(x) -#endif - -#define SIZEOF_ARRAY(x) (sizeof(x) / sizeof(x[0])) - -#endif /* _XDELTA3_H_ */ diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v1_to_v2.bin b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v1_to_v2.bin deleted file mode 100644 index 8621f0e..0000000 Binary files a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v1_to_v2.bin and /dev/null differ diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v2.bin b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v2.bin deleted file mode 100644 index 0242c57..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/file_v2.bin +++ /dev/null @@ -1,5419 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, - * 2008, 2009, 2010. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - ------------------------------------------------------------------- - - Xdelta 3 - - The goal of this library is to to implement both the (stand-alone) - data-compression and delta-compression aspects of VCDIFF encoding, and - to support a programming interface that works like Zlib - (http://www.gzip.org/zlib.html). See RFC3284: The VCDIFF Generic - Differencing and Compression Data Format. - - VCDIFF is a unified encoding that combines data-compression and - delta-encoding ("differencing"). - - VCDIFF has a detailed byte-code instruction set with many features. - The instruction format supports an immediate size operand for small - COPYs and ADDs (e.g., under 18 bytes). There are also instruction - "modes", which are used to compress COPY addresses by using two - address caches. An instruction mode refers to slots in the NEAR - and SAME caches for recent addresses. NEAR remembers the - previous 4 (by default) COPY addresses, and SAME catches - frequent re-uses of the same address using a 3-way (by default) - 256-entry associative cache of [ADDR mod 256], the encoded byte. - A hit in the NEAR/SAME cache requires 0/1 ADDR bytes. - - VCDIFF has a default instruction table, but an alternate - instruction tables may themselves be be delta-compressed and - included in the encoding header. This allows even more freedom. - There are 9 instruction modes in the default code table, 4 near, 3 - same, VCD_SELF (absolute encoding) and VCD_HERE (relative to the - current position). - - ---------------------------------------------------------------------- - - Algorithms - - Aside from the details of encoding and decoding, there are a bunch - of algorithms needed. - - 1. STRING-MATCH. A two-level fingerprinting approach is used. A - single loop computes the two checksums -- small and large -- at - successive offsets in the TARGET file. The large checksum is more - accurate and is used to discover SOURCE matches, which are - potentially very long. The small checksum is used to discover - copies within the TARGET. Small matching, which is more expensive, - usually dominates the large STRING-MATCH costs in this code - the - more exhaustive the search, the better the results. Either of the - two string-matching mechanisms may be disabled. - - 2. INSTRUCTION SELECTION. The IOPT buffer here represents a queue - used to store overlapping copy instructions. There are two possible - optimizations that go beyond a greedy search. Both of these fall - into the category of "non-greedy matching" optimizations. - - The first optimization stems from backward SOURCE-COPY matching. - When a new SOURCE-COPY instruction covers a previous instruction in - the target completely, it is erased from the queue. Randal Burns - originally analyzed these algorithms and did a lot of related work - (\cite the 1.5-pass algorithm). - - The second optimization comes by the encoding of common very-small - COPY and ADD instructions, for which there are special DOUBLE-code - instructions, which code two instructions in a single byte. - - The cost of bad instruction-selection overhead is relatively high - for data-compression, relative to delta-compression, so this second - optimization is fairly important. With "lazy" matching (the name - used in Zlib for a similar optimization), the string-match - algorithm searches after a match for potential overlapping copy - instructions. In Xdelta and by default, VCDIFF, the minimum match - size is 4 bytes, whereas Zlib searches with a 3-byte minimum. This - feature, combined with double instructions, provides a nice - challenge. Search in this file for "black magic", a heuristic. - - 3. STREAM ALIGNMENT. Stream alignment is needed to compress large - inputs in constant space. See xd3_srcwin_move_point(). - - 4. WINDOW SELECTION. When the IOPT buffer flushes, in the first call - to xd3_iopt_finish_encoding containing any kind of copy instruction, - the parameters of the source window must be decided: the offset into - the source and the length of the window. Since the IOPT buffer is - finite, the program may be forced to fix these values before knowing - the best offset/length. - - 5. SECONDARY COMPRESSION. VCDIFF supports a secondary encoding to - be applied to the individual sections of the data format, which are - ADDRess, INSTruction, and DATA. Several secondary compressor - variations are implemented here, although none is standardized yet. - - One is an adaptive huffman algorithm -- the FGK algorithm (Faller, - Gallager, and Knuth, 1985). This compressor is extremely slow. - - The other is a simple static Huffman routine, which is the base - case of a semi-adaptive scheme published by D.J. Wheeler and first - widely used in bzip2 (by Julian Seward). This is a very - interesting algorithm, originally published in nearly cryptic form - by D.J. Wheeler. !!!NOTE!!! Because these are not standardized, - secondary compression remains off by default. - ftp://ftp.cl.cam.ac.uk/users/djw3/bred3.{c,ps} - -------------------------------------------------------------------- - - Other Features - - 1. USER CONVENIENCE - - For user convenience, it is essential to recognize Gzip-compressed - files and automatically Gzip-decompress them prior to - delta-compression (or else no delta-compression will be achieved - unless the user manually decompresses the inputs). The compressed - represention competes with Xdelta, and this must be hidden from the - command-line user interface. The Xdelta-1.x encoding was simple, not - compressed itself, so Xdelta-1.x uses Zlib internally to compress the - representation. - - This implementation supports external compression, which implements - the necessary fork() and pipe() mechanics. There is a tricky step - involved to support automatic detection of a compressed input in a - non-seekable input. First you read a bit of the input to detect - magic headers. When a compressed format is recognized, exec() the - external compression program and create a second child process to - copy the original input stream. [Footnote: There is a difficulty - related to using Gzip externally. It is not possible to decompress - and recompress a Gzip file transparently. If FILE.GZ had a - cryptographic signature, then, after: (1) Gzip-decompression, (2) - Xdelta-encoding, (3) Gzip-compression the signature could be - broken. The only way to solve this problem is to guess at Gzip's - compression level or control it by other means. I recommend that - specific implementations of any compression scheme store - information needed to exactly re-compress the input, that way - external compression is transparent - however, this won't happen - here until it has stabilized.] - - 2. APPLICATION-HEADER - - This feature was introduced in RFC3284. It allows any application - to include a header within the VCDIFF file format. This allows - general inter-application data exchange with support for - application-specific extensions to communicate metadata. - - 3. VCDIFF CHECKSUM - - An optional checksum value is included with each window, which can - be used to validate the final result. This verifies the correct source - file was used for decompression as well as the obvious advantage: - checking the implementation (and underlying) correctness. - - 4. LIGHT WEIGHT - - The code makes efforts to avoid copying data more than necessary. - The code delays many initialization tasks until the first use, it - optimizes for identical (perfectly matching) inputs. It does not - compute any checksums until the first lookup misses. Memory usage - is reduced. String-matching is templatized (by slightly gross use - of CPP) to hard-code alternative compile-time defaults. The code - has few outside dependencies. - ---------------------------------------------------------------------- - - The default rfc3284 instruction table: - (see RFC for the explanation) - - TYPE SIZE MODE TYPE SIZE MODE INDEX - -------------------------------------------------------------------- - 1. Run 0 0 Noop 0 0 0 - 2. Add 0, [1,17] 0 Noop 0 0 [1,18] - 3. Copy 0, [4,18] 0 Noop 0 0 [19,34] - 4. Copy 0, [4,18] 1 Noop 0 0 [35,50] - 5. Copy 0, [4,18] 2 Noop 0 0 [51,66] - 6. Copy 0, [4,18] 3 Noop 0 0 [67,82] - 7. Copy 0, [4,18] 4 Noop 0 0 [83,98] - 8. Copy 0, [4,18] 5 Noop 0 0 [99,114] - 9. Copy 0, [4,18] 6 Noop 0 0 [115,130] - 10. Copy 0, [4,18] 7 Noop 0 0 [131,146] - 11. Copy 0, [4,18] 8 Noop 0 0 [147,162] - 12. Add [1,4] 0 Copy [4,6] 0 [163,174] - 13. Add [1,4] 0 Copy [4,6] 1 [175,186] - 14. Add [1,4] 0 Copy [4,6] 2 [187,198] - 15. Add [1,4] 0 Copy [4,6] 3 [199,210] - 16. Add [1,4] 0 Copy [4,6] 4 [211,222] - 17. Add [1,4] 0 Copy [4,6] 5 [223,234] - 18. Add [1,4] 0 Copy 4 6 [235,238] - 19. Add [1,4] 0 Copy 4 7 [239,242] - 20. Add [1,4] 0 Copy 4 8 [243,246] - 21. Copy 4 [0,8] Add 1 0 [247,255] - -------------------------------------------------------------------- - - Reading the source: Overview - - This file includes itself in several passes to macro-expand certain - sections with variable forms. Just read ahead, there's only a - little confusion. I know this sounds ugly, but hard-coding some of - the string-matching parameters results in a 10-15% increase in - string-match performance. The only time this hurts is when you have - unbalanced #if/endifs. - - A single compilation unit tames the Makefile. In short, this is to - allow the above-described hack without an explodingMakefile. The - single compilation unit includes the core library features, - configurable string-match templates, optional main() command-line - tool, misc optional features, and a regression test. Features are - controled with CPP #defines, see Makefile.am. - - The initial __XDELTA3_C_HEADER_PASS__ starts first, the _INLINE_ and - _TEMPLATE_ sections follow. Easy stuff first, hard stuff last. - - Optional features include: - - xdelta3-main.h The command-line interface, external compression - support, POSIX-specific, info & VCDIFF-debug tools. - xdelta3-second.h The common secondary compression routines. - xdelta3-decoder.h All decoding routines. - xdelta3-djw.h The semi-adaptive huffman secondary encoder. - xdelta3-fgk.h The adaptive huffman secondary encoder. - xdelta3-test.h The unit test covers major algorithms, - encoding and decoding. There are single-bit - error decoding tests. There are 32/64-bit file size - boundary tests. There are command-line tests. - There are compression tests. There are external - compression tests. There are string-matching tests. - There should be more tests... - - Additional headers include: - - xdelta3.h The public header file. - xdelta3-cfgs.h The default settings for default, built-in - encoders. These are hard-coded at - compile-time. There is also a single - soft-coded string matcher for experimenting - with arbitrary values. - xdelta3-list.h A cyclic list template - - Misc little debug utilities: - - badcopy.c Randomly modifies an input file based on two - parameters: (1) the probability that a byte in - the file is replaced with a pseudo-random value, - and (2) the mean change size. Changes are - generated using an expoential distribution - which approximates the expected error_prob - distribution. - -------------------------------------------------------------------- - - This file itself is unusually large. I hope to defend this layout - with lots of comments. Everything in this file is related to - encoding and decoding. I like it all together - the template stuff - is just a hack. */ - -#ifndef __XDELTA3_C_HEADER_PASS__ -#define __XDELTA3_C_HEADER_PASS__ - -#include -#include - -#include "xdelta3.h" - -/*********************************************************************** - STATIC CONFIGURATION - ***********************************************************************/ - -#ifndef XD3_MAIN /* the main application */ -#define XD3_MAIN 0 -#endif - -#ifndef VCDIFF_TOOLS -#define VCDIFF_TOOLS XD3_MAIN -#endif - -#ifndef SECONDARY_FGK /* one from the algorithm preservation department: */ -#define SECONDARY_FGK 0 /* adaptive Huffman routines */ -#endif - -#ifndef SECONDARY_DJW /* semi-adaptive/static Huffman for the eventual */ -#define SECONDARY_DJW 0 /* standardization, off by default until such time. */ -#endif - -#ifndef GENERIC_ENCODE_TABLES /* These three are the RFC-spec'd app-specific */ -#define GENERIC_ENCODE_TABLES 0 /* code features. This is tested but not recommended */ -#endif /* unless there's a real application. */ -#ifndef GENERIC_ENCODE_TABLES_COMPUTE -#define GENERIC_ENCODE_TABLES_COMPUTE 0 -#endif -#ifndef GENERIC_ENCODE_TABLES_COMPUTE_PRINT -#define GENERIC_ENCODE_TABLES_COMPUTE_PRINT 0 -#endif - -#if XD3_ENCODER -#define IF_ENCODER(x) x -#else -#define IF_ENCODER(x) -#endif - -/***********************************************************************/ - - /* header indicator bits */ -#define VCD_SECONDARY (1U << 0) /* uses secondary compressor */ -#define VCD_CODETABLE (1U << 1) /* supplies code table data */ -#define VCD_APPHEADER (1U << 2) /* supplies application data */ -#define VCD_INVHDR (~0x7U) - - /* window indicator bits */ -#define VCD_SOURCE (1U << 0) /* copy window in source file */ -#define VCD_TARGET (1U << 1) /* copy window in target file */ -#define VCD_ADLER32 (1U << 2) /* has adler32 checksum */ -#define VCD_INVWIN (~0x7U) - -#define VCD_SRCORTGT (VCD_SOURCE | VCD_TARGET) - - /* delta indicator bits */ -#define VCD_DATACOMP (1U << 0) -#define VCD_INSTCOMP (1U << 1) -#define VCD_ADDRCOMP (1U << 2) -#define VCD_INVDEL (~0x7U) - -typedef enum { - VCD_DJW_ID = 1, - VCD_FGK_ID = 16, /* Note: these are not standard IANA-allocated IDs! */ -} xd3_secondary_ids; - -typedef enum { - SEC_NOFLAGS = 0, - - /* Note: SEC_COUNT_FREQS Not implemented (to eliminate 1st Huffman pass) */ - SEC_COUNT_FREQS = (1 << 0), -} xd3_secondary_flags; - -typedef enum { - DATA_SECTION, /* These indicate which section to the secondary - * compressor. */ - INST_SECTION, /* The header section is not compressed, therefore not - * listed here. */ - ADDR_SECTION, -} xd3_section_type; - -typedef unsigned int xd3_rtype; - -/***********************************************************************/ - -#include "xdelta3-list.h" - -XD3_MAKELIST(xd3_rlist, xd3_rinst, link); - -/***********************************************************************/ - -#define SECONDARY_MIN_SAVINGS 2 /* Secondary compression has to save - at least this many bytes. */ -#define SECONDARY_MIN_INPUT 10 /* Secondary compression needs at - least this many bytes. */ - -#define VCDIFF_MAGIC1 0xd6 /* 1st file byte */ -#define VCDIFF_MAGIC2 0xc3 /* 2nd file byte */ -#define VCDIFF_MAGIC3 0xc4 /* 3rd file byte */ -#define VCDIFF_VERSION 0x00 /* 4th file byte */ - -#define VCD_SELF 0 /* 1st address mode */ -#define VCD_HERE 1 /* 2nd address mode */ - -#define CODE_TABLE_STRING_SIZE (6 * 256) /* Should fit a code table string. */ -#define CODE_TABLE_VCDIFF_SIZE (6 * 256) /* Should fit a compressed code - * table string */ - -#define SECONDARY_ANY (SECONDARY_DJW || SECONDARY_FGK) - -#define ALPHABET_SIZE 256 /* Used in test code--size of the secondary - * compressor alphabet. */ - -#define HASH_PERMUTE 1 /* The input is permuted by random nums */ -#define ADLER_LARGE_CKSUM 1 /* Adler checksum vs. RK checksum */ - -#define HASH_CKOFFSET 1U /* Table entries distinguish "no-entry" from - * offset 0 using this offset. */ - -#define MIN_SMALL_LOOK 2U /* Match-optimization stuff. */ -#define MIN_LARGE_LOOK 2U -#define MIN_MATCH_OFFSET 1U -#define MAX_MATCH_SPLIT 18U /* VCDIFF code table: 18 is the default limit - * for direct-coded ADD sizes */ - -#define LEAST_MATCH_INCR 0 /* The least number of bytes an overlapping - * match must beat the preceding match by. This - * is a bias for the lazy match optimization. A - * non-zero value means that an adjacent match - * has to be better by more than the step - * between them. 0. */ - -#define MIN_MATCH 4U /* VCDIFF code table: MIN_MATCH=4 */ -#define MIN_ADD 1U /* 1 */ -#define MIN_RUN 8U /* The shortest run, if it is shorter than this - * an immediate add/copy will be just as good. - * ADD1/COPY6 = 1I+1D+1A bytes, RUN18 = - * 1I+1D+1A. */ - -#define MAX_MODES 9 /* Maximum number of nodes used for - * compression--does not limit decompression. */ - -#define ENC_SECTS 4 /* Number of separate output sections. */ - -#define HDR_TAIL(s) ((s)->enc_tails[0]) -#define DATA_TAIL(s) ((s)->enc_tails[1]) -#define INST_TAIL(s) ((s)->enc_tails[2]) -#define ADDR_TAIL(s) ((s)->enc_tails[3]) - -#define HDR_HEAD(s) ((s)->enc_heads[0]) -#define DATA_HEAD(s) ((s)->enc_heads[1]) -#define INST_HEAD(s) ((s)->enc_heads[2]) -#define ADDR_HEAD(s) ((s)->enc_heads[3]) - -#define TOTAL_MODES(x) (2+(x)->acache.s_same+(x)->acache.s_near) - -/* Template instances. */ -#if XD3_BUILD_SLOW -#define IF_BUILD_SLOW(x) x -#else -#define IF_BUILD_SLOW(x) -#endif -#if XD3_BUILD_FAST -#define IF_BUILD_FAST(x) x -#else -#define IF_BUILD_FAST(x) -#endif -#if XD3_BUILD_FASTER -#define IF_BUILD_FASTER(x) x -#else -#define IF_BUILD_FASTER(x) -#endif -#if XD3_BUILD_FASTEST -#define IF_BUILD_FASTEST(x) x -#else -#define IF_BUILD_FASTEST(x) -#endif -#if XD3_BUILD_SOFT -#define IF_BUILD_SOFT(x) x -#else -#define IF_BUILD_SOFT(x) -#endif -#if XD3_BUILD_DEFAULT -#define IF_BUILD_DEFAULT(x) x -#else -#define IF_BUILD_DEFAULT(x) -#endif - -/* Consume N bytes of input, only used by the decoder. */ -#define DECODE_INPUT(n) \ - do { \ - stream->total_in += (xoff_t) (n); \ - stream->avail_in -= (n); \ - stream->next_in += (n); \ - } while (0) - -/* Update the run-length state */ -#define NEXTRUN(c) do { if ((c) == run_c) { run_l += 1; } \ - else { run_c = (c); run_l = 1; } } while (0) - -/* This CPP-conditional stuff can be cleaned up... */ -#if REGRESSION_TEST -#define IF_REGRESSION(x) x -#else -#define IF_REGRESSION(x) -#endif - -/***********************************************************************/ - -#if XD3_ENCODER -static void* xd3_alloc0 (xd3_stream *stream, - usize_t elts, - usize_t size); - - -static xd3_output* xd3_alloc_output (xd3_stream *stream, - xd3_output *old_output); - -static int xd3_alloc_iopt (xd3_stream *stream, usize_t elts); - -static void xd3_free_output (xd3_stream *stream, - xd3_output *output); - -static int xd3_emit_byte (xd3_stream *stream, - xd3_output **outputp, - uint8_t code); - -static int xd3_emit_bytes (xd3_stream *stream, - xd3_output **outputp, - const uint8_t *base, - usize_t size); - -static int xd3_emit_double (xd3_stream *stream, xd3_rinst *first, - xd3_rinst *second, usize_t code); -static int xd3_emit_single (xd3_stream *stream, xd3_rinst *single, - usize_t code); - -static usize_t xd3_sizeof_output (xd3_output *output); -static void xd3_encode_reset (xd3_stream *stream); - -static int xd3_source_match_setup (xd3_stream *stream, xoff_t srcpos); -static int xd3_source_extend_match (xd3_stream *stream); -static int xd3_srcwin_setup (xd3_stream *stream); -static usize_t xd3_iopt_last_matched (xd3_stream *stream); -static int xd3_emit_uint32_t (xd3_stream *stream, xd3_output **output, - uint32_t num); - -static usize_t xd3_smatch (xd3_stream *stream, - usize_t base, - usize_t scksum, - usize_t *match_offset); -static int xd3_string_match_init (xd3_stream *stream); -static uint32_t xd3_scksum (uint32_t *state, const uint8_t *seg, - const usize_t ln); -static usize_t xd3_comprun (const uint8_t *seg, usize_t slook, uint8_t *run_cp); -static int xd3_srcwin_move_point (xd3_stream *stream, - usize_t *next_move_point); - -static int xd3_emit_run (xd3_stream *stream, usize_t pos, - usize_t size, uint8_t *run_c); -static usize_t xd3_checksum_hash (const xd3_hash_cfg *cfg, - const usize_t cksum); -static xoff_t xd3_source_cksum_offset(xd3_stream *stream, usize_t low); -static void xd3_scksum_insert (xd3_stream *stream, - usize_t inx, - usize_t scksum, - usize_t pos); - - -#if XD3_DEBUG -static void xd3_verify_run_state (xd3_stream *stream, - const uint8_t *inp, - usize_t x_run_l, - uint8_t *x_run_c); -static void xd3_verify_large_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum); -static void xd3_verify_small_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum); - -#endif /* XD3_DEBUG */ -#endif /* XD3_ENCODER */ - -static int xd3_decode_allocate (xd3_stream *stream, usize_t size, - uint8_t **copied1, usize_t *alloc1); - -static void xd3_compute_code_table_string (const xd3_dinst *code_table, - uint8_t *str); -static void* xd3_alloc (xd3_stream *stream, usize_t elts, usize_t size); -static void xd3_free (xd3_stream *stream, void *ptr); - -static int xd3_read_uint32_t (xd3_stream *stream, const uint8_t **inpp, - const uint8_t *max, uint32_t *valp); - -#if REGRESSION_TEST -static int xd3_selftest (void); -#endif - -/***********************************************************************/ - -#define UINT32_OFLOW_MASK 0xfe000000U -#define UINT64_OFLOW_MASK 0xfe00000000000000ULL - -#ifndef UINT32_MAX -#define UINT32_MAX 4294967295U -#endif - -#ifndef UINT64_MAX -#define UINT64_MAX 18446744073709551615ULL -#endif - -#if SIZEOF_USIZE_T == 4 -#define USIZE_T_MAX UINT32_MAX -#define xd3_decode_size xd3_decode_uint32_t -#define xd3_emit_size xd3_emit_uint32_t -#define xd3_sizeof_size xd3_sizeof_uint32_t -#define xd3_read_size xd3_read_uint32_t -#elif SIZEOF_USIZE_T == 8 -#define USIZE_T_MAX UINT64_MAX -#define xd3_decode_size xd3_decode_uint64_t -#define xd3_emit_size xd3_emit_uint64_t -#define xd3_sizeof_size xd3_sizeof_uint64_t -#define xd3_read_size xd3_read_uint64_t -#endif - -#if SIZEOF_XOFF_T == 4 -#define XOFF_T_MAX UINT32_MAX -#define xd3_decode_offset xd3_decode_uint32_t -#define xd3_emit_offset xd3_emit_uint32_t -#elif SIZEOF_XOFF_T == 8 -#define XOFF_T_MAX UINT64_MAX -#define xd3_decode_offset xd3_decode_uint64_t -#define xd3_emit_offset xd3_emit_uint64_t -#endif - -#define USIZE_T_OVERFLOW(a,b) ((USIZE_T_MAX - (usize_t) (a)) < (usize_t) (b)) -#define XOFF_T_OVERFLOW(a,b) ((XOFF_T_MAX - (xoff_t) (a)) < (xoff_t) (b)) - -const char* xd3_strerror (int ret) -{ - switch (ret) - { - case XD3_INPUT: return "XD3_INPUT"; - case XD3_OUTPUT: return "XD3_OUTPUT"; - case XD3_GETSRCBLK: return "XD3_GETSRCBLK"; - case XD3_GOTHEADER: return "XD3_GOTHEADER"; - case XD3_WINSTART: return "XD3_WINSTART"; - case XD3_WINFINISH: return "XD3_WINFINISH"; - case XD3_TOOFARBACK: return "XD3_TOOFARBACK"; - case XD3_INTERNAL: return "XD3_INTERNAL"; - case XD3_INVALID: return "XD3_INVALID"; - case XD3_INVALID_INPUT: return "XD3_INVALID_INPUT"; - case XD3_NOSECOND: return "XD3_NOSECOND"; - case XD3_UNIMPLEMENTED: return "XD3_UNIMPLEMENTED"; - } - return NULL; -} - -/***********************************************************************/ - -#define xd3_sec_data(s) ((s)->sec_stream_d) -#define xd3_sec_inst(s) ((s)->sec_stream_i) -#define xd3_sec_addr(s) ((s)->sec_stream_a) - -struct _xd3_sec_type -{ - int id; - const char *name; - xd3_secondary_flags flags; - - /* xd3_sec_stream is opaque to the generic code */ - xd3_sec_stream* (*alloc) (xd3_stream *stream); - void (*destroy) (xd3_stream *stream, - xd3_sec_stream *sec); - void (*init) (xd3_sec_stream *sec); - int (*decode) (xd3_stream *stream, - xd3_sec_stream *sec_stream, - const uint8_t **input, - const uint8_t *input_end, - uint8_t **output, - const uint8_t *output_end); -#if XD3_ENCODER - int (*encode) (xd3_stream *stream, - xd3_sec_stream *sec_stream, - xd3_output *input, - xd3_output *output, - xd3_sec_cfg *cfg); -#endif -}; - -#define BIT_STATE_ENCODE_INIT { 0, 1 } -#define BIT_STATE_DECODE_INIT { 0, 0x100 } - -typedef struct _bit_state bit_state; -struct _bit_state -{ - usize_t cur_byte; - usize_t cur_mask; -}; - -#if SECONDARY_ANY == 0 -#define IF_SEC(x) -#define IF_NSEC(x) x -#else /* yuck */ -#define IF_SEC(x) x -#define IF_NSEC(x) -static int -xd3_decode_secondary (xd3_stream *stream, - xd3_desect *sect, - xd3_sec_stream **sec_streamp); -#if XD3_ENCODER -static int -xd3_encode_secondary (xd3_stream *stream, - xd3_output **head, - xd3_output **tail, - xd3_sec_stream **sec_streamp, - xd3_sec_cfg *cfg, - int *did_it); -#endif -#endif /* SECONDARY_ANY */ - -#if SECONDARY_FGK -extern const xd3_sec_type fgk_sec_type; -#define IF_FGK(x) x -#define FGK_CASE(s) \ - s->sec_type = & fgk_sec_type; \ - break; -#else -#define IF_FGK(x) -#define FGK_CASE(s) \ - s->msg = "unavailable secondary compressor: FGK Adaptive Huffman"; \ - return XD3_INTERNAL; -#endif - -#if SECONDARY_DJW -extern const xd3_sec_type djw_sec_type; -#define IF_DJW(x) x -#define DJW_CASE(s) \ - s->sec_type = & djw_sec_type; \ - break; -#else -#define IF_DJW(x) -#define DJW_CASE(s) \ - s->msg = "unavailable secondary compressor: DJW Static Huffman"; \ - return XD3_INTERNAL; -#endif - -/***********************************************************************/ - -#include "xdelta3-hash.h" - -/* Process template passes - this includes xdelta3.c several times. */ -#define __XDELTA3_C_TEMPLATE_PASS__ -#include "xdelta3-cfgs.h" -#undef __XDELTA3_C_TEMPLATE_PASS__ - -/* Process the inline pass. */ -#define __XDELTA3_C_INLINE_PASS__ -#include "xdelta3.c" -#undef __XDELTA3_C_INLINE_PASS__ - -/* Secondary compression */ -#if SECONDARY_ANY -#include "xdelta3-second.h" -#endif - -#if SECONDARY_FGK -#include "xdelta3-fgk.h" -const xd3_sec_type fgk_sec_type = -{ - VCD_FGK_ID, - "FGK Adaptive Huffman", - SEC_NOFLAGS, - (xd3_sec_stream* (*)(xd3_stream*)) fgk_alloc, - (void (*)(xd3_stream*, xd3_sec_stream*)) fgk_destroy, - (void (*)(xd3_sec_stream*)) fgk_init, - (int (*)(xd3_stream*, xd3_sec_stream*, const uint8_t**, const uint8_t*, - uint8_t**, const uint8_t*)) xd3_decode_fgk, - IF_ENCODER((int (*)(xd3_stream*, xd3_sec_stream*, xd3_output*, - xd3_output*, xd3_sec_cfg*)) xd3_encode_fgk) -}; -#endif - -#if SECONDARY_DJW -#include "xdelta3-djw.h" -const xd3_sec_type djw_sec_type = -{ - VCD_DJW_ID, - "Static Huffman", - SEC_COUNT_FREQS, - (xd3_sec_stream* (*)(xd3_stream*)) djw_alloc, - (void (*)(xd3_stream*, xd3_sec_stream*)) djw_destroy, - (void (*)(xd3_sec_stream*)) djw_init, - (int (*)(xd3_stream*, xd3_sec_stream*, const uint8_t**, const uint8_t*, - uint8_t**, const uint8_t*)) xd3_decode_huff, - IF_ENCODER((int (*)(xd3_stream*, xd3_sec_stream*, xd3_output*, - xd3_output*, xd3_sec_cfg*)) xd3_encode_huff) -}; -#endif - -#if XD3_MAIN || PYTHON_MODULE || SWIG_MODULE || NOT_MAIN -#include "xdelta3-main.h" -#endif - -#if REGRESSION_TEST -#include "xdelta3-test.h" -#endif - -#if PYTHON_MODULE -#include "xdelta3-python.h" -#endif - -#endif /* __XDELTA3_C_HEADER_PASS__ */ -#ifdef __XDELTA3_C_INLINE_PASS__ - -/**************************************************************** - Instruction tables - *****************************************************************/ - -/* The following code implements a parametrized description of the - * code table given above for a few reasons. It is not necessary for - * implementing the standard, to support compression with variable - * tables, so an implementation is only required to know the default - * code table to begin decompression. (If the encoder uses an - * alternate table, the table is included in compressed form inside - * the VCDIFF file.) - * - * Before adding variable-table support there were two functions which - * were hard-coded to the default table above. - * xd3_compute_default_table() would create the default table by - * filling a 256-elt array of xd3_dinst values. The corresponding - * function, xd3_choose_instruction(), would choose an instruction - * based on the hard-coded parameters of the default code table. - * - * Notes: The parametrized code table description here only generates - * tables of a certain regularity similar to the default table by - * allowing to vary the distribution of single- and - * double-instructions and change the number of near and same copy - * modes. More exotic tables are only possible by extending this - * code. - * - * For performance reasons, both the parametrized and non-parametrized - * versions of xd3_choose_instruction remain. The parametrized - * version is only needed for testing multi-table decoding support. - * If ever multi-table encoding is required, this can be optimized by - * compiling static functions for each table. - */ - -/* The XD3_CHOOSE_INSTRUCTION calls xd3_choose_instruction with the - * table description when GENERIC_ENCODE_TABLES are in use. The - * IF_GENCODETBL macro enables generic-code-table specific code. */ -#if GENERIC_ENCODE_TABLES -#define XD3_CHOOSE_INSTRUCTION(stream,prev,inst) xd3_choose_instruction (stream->code_table_desc, prev, inst) -#define IF_GENCODETBL(x) x -#else -#define XD3_CHOOSE_INSTRUCTION(stream,prev,inst) xd3_choose_instruction (prev, inst) -#define IF_GENCODETBL(x) -#endif - -/* This structure maintains information needed by - * xd3_choose_instruction to compute the code for a double instruction - * by first indexing an array of code_table_sizes by copy mode, then - * using (offset + (muliplier * X)) */ -struct _xd3_code_table_sizes { - uint8_t cpy_max; - uint8_t offset; - uint8_t mult; -}; - -/* This contains a complete description of a code table. */ -struct _xd3_code_table_desc -{ - /* Assumes a single RUN instruction */ - /* Assumes that MIN_MATCH is 4 */ - - uint8_t add_sizes; /* Number of immediate-size single adds (default 17) */ - uint8_t near_modes; /* Number of near copy modes (default 4) */ - uint8_t same_modes; /* Number of same copy modes (default 3) */ - uint8_t cpy_sizes; /* Number of immediate-size single copies (default 15) */ - - uint8_t addcopy_add_max; /* Maximum add size for an add-copy double instruction, - all modes (default 4) */ - uint8_t addcopy_near_cpy_max; /* Maximum cpy size for an add-copy double instruction, - up through VCD_NEAR modes (default 6) */ - uint8_t addcopy_same_cpy_max; /* Maximum cpy size for an add-copy double instruction, - VCD_SAME modes (default 4) */ - - uint8_t copyadd_add_max; /* Maximum add size for a copy-add double instruction, - all modes (default 1) */ - uint8_t copyadd_near_cpy_max; /* Maximum cpy size for a copy-add double instruction, - up through VCD_NEAR modes (default 4) */ - uint8_t copyadd_same_cpy_max; /* Maximum cpy size for a copy-add double instruction, - VCD_SAME modes (default 4) */ - - xd3_code_table_sizes addcopy_max_sizes[MAX_MODES]; - xd3_code_table_sizes copyadd_max_sizes[MAX_MODES]; -}; - -/* The rfc3284 code table is represented: */ -static const xd3_code_table_desc __rfc3284_code_table_desc = { - 17, /* add sizes */ - 4, /* near modes */ - 3, /* same modes */ - 15, /* copy sizes */ - - 4, /* add-copy max add */ - 6, /* add-copy max cpy, near */ - 4, /* add-copy max cpy, same */ - - 1, /* copy-add max add */ - 4, /* copy-add max cpy, near */ - 4, /* copy-add max cpy, same */ - - /* addcopy */ - { {6,163,3},{6,175,3},{6,187,3},{6,199,3},{6,211,3},{6,223,3},{4,235,1},{4,239,1},{4,243,1} }, - /* copyadd */ - { {4,247,1},{4,248,1},{4,249,1},{4,250,1},{4,251,1},{4,252,1},{4,253,1},{4,254,1},{4,255,1} }, -}; - -#if GENERIC_ENCODE_TABLES -/* An alternate code table for testing (5 near, 0 same): - * - * TYPE SIZE MODE TYPE SIZE MODE INDEX - * --------------------------------------------------------------- - * 1. Run 0 0 Noop 0 0 0 - * 2. Add 0, [1,23] 0 Noop 0 0 [1,24] - * 3. Copy 0, [4,20] 0 Noop 0 0 [25,42] - * 4. Copy 0, [4,20] 1 Noop 0 0 [43,60] - * 5. Copy 0, [4,20] 2 Noop 0 0 [61,78] - * 6. Copy 0, [4,20] 3 Noop 0 0 [79,96] - * 7. Copy 0, [4,20] 4 Noop 0 0 [97,114] - * 8. Copy 0, [4,20] 5 Noop 0 0 [115,132] - * 9. Copy 0, [4,20] 6 Noop 0 0 [133,150] - * 10. Add [1,4] 0 Copy [4,6] 0 [151,162] - * 11. Add [1,4] 0 Copy [4,6] 1 [163,174] - * 12. Add [1,4] 0 Copy [4,6] 2 [175,186] - * 13. Add [1,4] 0 Copy [4,6] 3 [187,198] - * 14. Add [1,4] 0 Copy [4,6] 4 [199,210] - * 15. Add [1,4] 0 Copy [4,6] 5 [211,222] - * 16. Add [1,4] 0 Copy [4,6] 6 [223,234] - * 17. Copy 4 [0,6] Add [1,3] 0 [235,255] - * --------------------------------------------------------------- */ -static const xd3_code_table_desc __alternate_code_table_desc = { - 23, /* add sizes */ - 5, /* near modes */ - 0, /* same modes */ - 17, /* copy sizes */ - - 4, /* add-copy max add */ - 6, /* add-copy max cpy, near */ - 0, /* add-copy max cpy, same */ - - 3, /* copy-add max add */ - 4, /* copy-add max cpy, near */ - 0, /* copy-add max cpy, same */ - - /* addcopy */ - { {6,151,3},{6,163,3},{6,175,3},{6,187,3},{6,199,3},{6,211,3},{6,223,3},{0,0,0},{0,0,0} }, - /* copyadd */ - { {4,235,1},{4,238,1},{4,241,1},{4,244,1},{4,247,1},{4,250,1},{4,253,1},{0,0,0},{0,0,0} }, -}; -#endif - -/* Computes code table entries of TBL using the specified description. */ -static void -xd3_build_code_table (const xd3_code_table_desc *desc, xd3_dinst *tbl) -{ - usize_t size1, size2, mode; - usize_t cpy_modes = 2 + desc->near_modes + desc->same_modes; - xd3_dinst *d = tbl; - - (d++)->type1 = XD3_RUN; - (d++)->type1 = XD3_ADD; - - for (size1 = 1; size1 <= desc->add_sizes; size1 += 1, d += 1) - { - d->type1 = XD3_ADD; - d->size1 = size1; - } - - for (mode = 0; mode < cpy_modes; mode += 1) - { - (d++)->type1 = XD3_CPY + mode; - - for (size1 = MIN_MATCH; size1 < MIN_MATCH + desc->cpy_sizes; size1 += 1, d += 1) - { - d->type1 = XD3_CPY + mode; - d->size1 = size1; - } - } - - for (mode = 0; mode < cpy_modes; mode += 1) - { - for (size1 = 1; size1 <= desc->addcopy_add_max; size1 += 1) - { - usize_t max = (mode < 2U + desc->near_modes) ? - desc->addcopy_near_cpy_max : - desc->addcopy_same_cpy_max; - - for (size2 = MIN_MATCH; size2 <= max; size2 += 1, d += 1) - { - d->type1 = XD3_ADD; - d->size1 = size1; - d->type2 = XD3_CPY + mode; - d->size2 = size2; - } - } - } - - for (mode = 0; mode < cpy_modes; mode += 1) - { - usize_t max = (mode < 2U + desc->near_modes) ? - desc->copyadd_near_cpy_max : - desc->copyadd_same_cpy_max; - - for (size1 = MIN_MATCH; size1 <= max; size1 += 1) - { - for (size2 = 1; size2 <= desc->copyadd_add_max; size2 += 1, d += 1) - { - d->type1 = XD3_CPY + mode; - d->size1 = size1; - d->type2 = XD3_ADD; - d->size2 = size2; - } - } - } - - XD3_ASSERT (d - tbl == 256); -} - -/* This function generates the static default code table. */ -static const xd3_dinst* -xd3_rfc3284_code_table (void) -{ - static xd3_dinst __rfc3284_code_table[256]; - - if (__rfc3284_code_table[0].type1 != XD3_RUN) - { - xd3_build_code_table (& __rfc3284_code_table_desc, __rfc3284_code_table); - } - - return __rfc3284_code_table; -} - -#if XD3_ENCODER -#if GENERIC_ENCODE_TABLES -/* This function generates the alternate code table. */ -static const xd3_dinst* -xd3_alternate_code_table (void) -{ - static xd3_dinst __alternate_code_table[256]; - - if (__alternate_code_table[0].type1 != XD3_RUN) - { - xd3_build_code_table (& __alternate_code_table_desc, __alternate_code_table); - } - - return __alternate_code_table; -} - -/* This function computes the ideal second instruction INST based on - * preceding instruction PREV. If it is possible to issue a double - * instruction based on this pair it sets PREV->code2, otherwise it - * sets INST->code1. */ -static void -xd3_choose_instruction (const xd3_code_table_desc *desc, xd3_rinst *prev, xd3_rinst *inst) -{ - switch (inst->type) - { - case XD3_RUN: - /* The 0th instruction is RUN */ - inst->code1 = 0; - break; - - case XD3_ADD: - - if (inst->size > desc->add_sizes) - { - /* The first instruction is non-immediate ADD */ - inst->code1 = 1; - } - else - { - /* The following ADD_SIZES instructions are immediate ADDs */ - inst->code1 = 1 + inst->size; - - /* Now check for a possible COPY-ADD double instruction */ - if (prev != NULL) - { - int prev_mode = prev->type - XD3_CPY; - - /* If previous is a copy. Note: as long as the previous - * is not a RUN instruction, it should be a copy because - * it cannot be an add. This check is more clear. */ - if (prev_mode >= 0 && inst->size <= desc->copyadd_add_max) - { - const xd3_code_table_sizes *sizes = & desc->copyadd_max_sizes[prev_mode]; - - /* This check and the inst->size-<= above are == in - the default table. */ - if (prev->size <= sizes->cpy_max) - { - /* The second and third exprs are 0 in the - default table. */ - prev->code2 = sizes->offset + - (sizes->mult * (prev->size - MIN_MATCH)) + - (inst->size - MIN_ADD); - } - } - } - } - break; - - default: - { - int mode = inst->type - XD3_CPY; - - /* The large copy instruction is offset by the run, large add, - * and immediate adds, then multipled by the number of - * immediate copies plus one (the large copy) (i.e., if there - * are 15 immediate copy instructions then there are 16 copy - * instructions per mode). */ - inst->code1 = 2 + desc->add_sizes + (1 + desc->cpy_sizes) * mode; - - /* Now if the copy is short enough for an immediate instruction. */ - if (inst->size < MIN_MATCH + desc->cpy_sizes && - /* TODO: there needs to be a more comprehensive test for this - * boundary condition, merge is now exercising code in which - * size < MIN_MATCH is possible and it's unclear if the above - * size < (MIN_MATCH + cpy_sizes) should be a <= from inspection - * of the default table version below. */ - inst->size >= MIN_MATCH) - { - inst->code1 += inst->size + 1 - MIN_MATCH; - - /* Now check for a possible ADD-COPY double instruction. */ - if ( (prev != NULL) && - (prev->type == XD3_ADD) && - (prev->size <= desc->addcopy_add_max) ) - { - const xd3_code_table_sizes *sizes = & desc->addcopy_max_sizes[mode]; - - if (inst->size <= sizes->cpy_max) - { - prev->code2 = sizes->offset + - (sizes->mult * (prev->size - MIN_ADD)) + - (inst->size - MIN_MATCH); - } - } - } - } - } -} -#else /* GENERIC_ENCODE_TABLES */ - -/* This version of xd3_choose_instruction is hard-coded for the default - table. */ -static void -xd3_choose_instruction (xd3_rinst *prev, xd3_rinst *inst) -{ - switch (inst->type) - { - case XD3_RUN: - inst->code1 = 0; - break; - - case XD3_ADD: - inst->code1 = 1; - - if (inst->size <= 17) - { - inst->code1 += inst->size; - - if ( (inst->size == 1) && - (prev != NULL) && - (prev->size == 4) && - (prev->type >= XD3_CPY) ) - { - prev->code2 = 247 + (prev->type - XD3_CPY); - } - } - - break; - - default: - { - int mode = inst->type - XD3_CPY; - - XD3_ASSERT (inst->type >= XD3_CPY && inst->type < 12); - - inst->code1 = 19 + 16 * mode; - - if (inst->size <= 18 && inst->size >= 4) - { - inst->code1 += inst->size - 3; - - if ( (prev != NULL) && - (prev->type == XD3_ADD) && - (prev->size <= 4) ) - { - if ( (inst->size <= 6) && - (mode <= 5) ) - { - prev->code2 = 163 + (mode * 12) + (3 * (prev->size - 1)) + (inst->size - 4); - - XD3_ASSERT (prev->code2 <= 234); - } - else if ( (inst->size == 4) && - (mode >= 6) ) - { - prev->code2 = 235 + ((mode - 6) * 4) + (prev->size - 1); - - XD3_ASSERT (prev->code2 <= 246); - } - } - } - - XD3_ASSERT (inst->code1 <= 162); - } - break; - } -} -#endif /* GENERIC_ENCODE_TABLES */ - -/*********************************************************************** - Instruction table encoder/decoder - ***********************************************************************/ - -#if GENERIC_ENCODE_TABLES -#if GENERIC_ENCODE_TABLES_COMPUTE == 0 - -/* In this case, we hard-code the result of - * compute_code_table_encoding for each alternate code table, - * presuming that saves time/space. This has been 131 bytes, but - * secondary compression was turned off. */ -static const uint8_t __alternate_code_table_compressed[178] = -{0xd6,0xc3,0xc4,0x00,0x00,0x01,0x8a,0x6f,0x40,0x81,0x27,0x8c,0x00,0x00,0x4a,0x4a,0x0d,0x02,0x01,0x03, -0x01,0x03,0x00,0x01,0x00,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e, -0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x00,0x01,0x01,0x01,0x02,0x02,0x02,0x03,0x03,0x03,0x04, -0x04,0x04,0x04,0x00,0x04,0x05,0x06,0x01,0x02,0x03,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x05,0x05,0x05, -0x06,0x06,0x06,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x00,0x02,0x00,0x18,0x13,0x63,0x00,0x1b,0x00,0x54, -0x00,0x15,0x23,0x6f,0x00,0x28,0x13,0x54,0x00,0x15,0x01,0x1a,0x31,0x23,0x6c,0x0d,0x23,0x48,0x00,0x15, -0x93,0x6f,0x00,0x28,0x04,0x23,0x51,0x04,0x32,0x00,0x2b,0x00,0x12,0x00,0x12,0x00,0x12,0x00,0x12,0x00, -0x12,0x00,0x12,0x53,0x57,0x9c,0x07,0x43,0x6f,0x00,0x34,0x00,0x0c,0x00,0x0c,0x00,0x0c,0x00,0x0c,0x00, -0x0c,0x00,0x0c,0x00,0x15,0x00,0x82,0x6f,0x00,0x15,0x12,0x0c,0x00,0x03,0x03,0x00,0x06,0x00,}; - -static int -xd3_compute_alternate_table_encoding (xd3_stream *stream, const uint8_t **data, usize_t *size) -{ - (*data) = __alternate_code_table_compressed; - (*size) = sizeof (__alternate_code_table_compressed); - return 0; -} - -#else - -/* The alternate code table will be computed and stored here. */ -static uint8_t __alternate_code_table_compressed[CODE_TABLE_VCDIFF_SIZE]; -static usize_t __alternate_code_table_compressed_size; - -/* This function generates a delta describing the code table for - * encoding within a VCDIFF file. This function is NOT thread safe - * because it is only intended that this function is used to generate - * statically-compiled strings. "comp_string" must be sized - * CODE_TABLE_VCDIFF_SIZE. */ -int xd3_compute_code_table_encoding (xd3_stream *in_stream, - const xd3_dinst *code_table, - uint8_t *comp_string, - usize_t *comp_string_size) -{ - /* Use DJW secondary compression if it is on by default. This saves - * about 20 bytes. */ - uint8_t dflt_string[CODE_TABLE_STRING_SIZE]; - uint8_t code_string[CODE_TABLE_STRING_SIZE]; - - xd3_compute_code_table_string (xd3_rfc3284_code_table (), dflt_string); - xd3_compute_code_table_string (code_table, code_string); - - return xd3_encode_memory (code_string, CODE_TABLE_STRING_SIZE, - dflt_string, CODE_TABLE_STRING_SIZE, - comp_string, comp_string_size, - CODE_TABLE_VCDIFF_SIZE, - /* flags */ 0); -} - -/* Compute a delta between alternate and rfc3284 tables. As soon as - * another alternate table is added, this code should become generic. - * For now there is only one alternate table for testing. */ -static int -xd3_compute_alternate_table_encoding (xd3_stream *stream, const uint8_t **data, usize_t *size) -{ - int ret; - - if (__alternate_code_table_compressed[0] == 0) - { - if ((ret = xd3_compute_code_table_encoding (stream, xd3_alternate_code_table (), - __alternate_code_table_compressed, - & __alternate_code_table_compressed_size))) - { - return ret; - } - - /* During development of a new code table, enable this variable to print - * the new static contents and determine its size. At run time the - * table will be filled in appropriately, but at least it should have - * the proper size beforehand. */ -#if GENERIC_ENCODE_TABLES_COMPUTE_PRINT - { - int i; - - DP(RINT, "\nstatic const usize_t __alternate_code_table_compressed_size = %u;\n", - __alternate_code_table_compressed_size); - - DP(RINT, "static const uint8_t __alternate_code_table_compressed[%u] =\n{", - __alternate_code_table_compressed_size); - - for (i = 0; i < __alternate_code_table_compressed_size; i += 1) - { - DP(RINT, "0x%02x,", __alternate_code_table_compressed[i]); - if ((i % 20) == 19) { DP(RINT, "\n"); } - } - - DP(RINT, "};\n"); - } -#endif - } - - (*data) = __alternate_code_table_compressed; - (*size) = __alternate_code_table_compressed_size; - - return 0; -} -#endif /* GENERIC_ENCODE_TABLES_COMPUTE != 0 */ -#endif /* GENERIC_ENCODE_TABLES */ - -#endif /* XD3_ENCODER */ - -/* This function generates the 1536-byte string specified in sections 5.4 and - * 7 of rfc3284, which is used to represent a code table within a VCDIFF - * file. */ -void xd3_compute_code_table_string (const xd3_dinst *code_table, uint8_t *str) -{ - int i, s; - - XD3_ASSERT (CODE_TABLE_STRING_SIZE == 6 * 256); - - for (s = 0; s < 6; s += 1) - { - for (i = 0; i < 256; i += 1) - { - switch (s) - { - case 0: *str++ = (code_table[i].type1 >= XD3_CPY ? XD3_CPY : code_table[i].type1); break; - case 1: *str++ = (code_table[i].type2 >= XD3_CPY ? XD3_CPY : code_table[i].type2); break; - case 2: *str++ = (code_table[i].size1); break; - case 3: *str++ = (code_table[i].size2); break; - case 4: *str++ = (code_table[i].type1 >= XD3_CPY ? code_table[i].type1 - XD3_CPY : 0); break; - case 5: *str++ = (code_table[i].type2 >= XD3_CPY ? code_table[i].type2 - XD3_CPY : 0); break; - } - } - } -} - -/* This function translates the code table string into the internal representation. The - * stream's near and same-modes should already be set. */ -static int -xd3_apply_table_string (xd3_stream *stream, const uint8_t *code_string) -{ - int i, s; - int modes = TOTAL_MODES (stream); - xd3_dinst *code_table; - - if ((code_table = stream->code_table_alloc = - (xd3_dinst*) xd3_alloc (stream, - (usize_t) sizeof (xd3_dinst), - 256)) == NULL) - { - return ENOMEM; - } - - for (s = 0; s < 6; s += 1) - { - for (i = 0; i < 256; i += 1) - { - switch (s) - { - case 0: - if (*code_string > XD3_CPY) - { - stream->msg = "invalid code-table opcode"; - return XD3_INTERNAL; - } - code_table[i].type1 = *code_string++; - break; - case 1: - if (*code_string > XD3_CPY) - { - stream->msg = "invalid code-table opcode"; - return XD3_INTERNAL; - } - code_table[i].type2 = *code_string++; - break; - case 2: - if (*code_string != 0 && code_table[i].type1 == XD3_NOOP) - { - stream->msg = "invalid code-table size"; - return XD3_INTERNAL; - } - code_table[i].size1 = *code_string++; - break; - case 3: - if (*code_string != 0 && code_table[i].type2 == XD3_NOOP) - { - stream->msg = "invalid code-table size"; - return XD3_INTERNAL; - } - code_table[i].size2 = *code_string++; - break; - case 4: - if (*code_string >= modes) - { - stream->msg = "invalid code-table mode"; - return XD3_INTERNAL; - } - if (*code_string != 0 && code_table[i].type1 != XD3_CPY) - { - stream->msg = "invalid code-table mode"; - return XD3_INTERNAL; - } - code_table[i].type1 += *code_string++; - break; - case 5: - if (*code_string >= modes) - { - stream->msg = "invalid code-table mode"; - return XD3_INTERNAL; - } - if (*code_string != 0 && code_table[i].type2 != XD3_CPY) - { - stream->msg = "invalid code-table mode"; - return XD3_INTERNAL; - } - code_table[i].type2 += *code_string++; - break; - } - } - } - - stream->code_table = code_table; - return 0; -} - -/* This function applies a code table delta and returns an actual code table. */ -static int -xd3_apply_table_encoding (xd3_stream *in_stream, const uint8_t *data, usize_t size) -{ - uint8_t dflt_string[CODE_TABLE_STRING_SIZE]; - uint8_t code_string[CODE_TABLE_STRING_SIZE]; - usize_t code_size; - int ret; - - xd3_compute_code_table_string (xd3_rfc3284_code_table (), dflt_string); - - if ((ret = xd3_decode_memory (data, size, - dflt_string, CODE_TABLE_STRING_SIZE, - code_string, &code_size, - CODE_TABLE_STRING_SIZE, - 0))) { return ret; } - - if (code_size != sizeof (code_string)) - { - in_stream->msg = "corrupt code-table encoding"; - return XD3_INTERNAL; - } - - return xd3_apply_table_string (in_stream, code_string); -} - -/***********************************************************************/ - -static inline void -xd3_swap_uint8p (uint8_t** p1, uint8_t** p2) -{ - uint8_t *t = (*p1); - (*p1) = (*p2); - (*p2) = t; -} - -static inline void -xd3_swap_usize_t (usize_t* p1, usize_t* p2) -{ - usize_t t = (*p1); - (*p1) = (*p2); - (*p2) = t; -} - -/* It's not constant time, but it computes the log. */ -static int -xd3_check_pow2 (usize_t value, usize_t *logof) -{ - usize_t x = 1; - usize_t nolog; - if (logof == NULL) { - logof = &nolog; - } - - *logof = 0; - - for (; x != 0; x <<= 1, *logof += 1) - { - if (x == value) - { - return 0; - } - } - - return XD3_INTERNAL; -} - -static usize_t -xd3_pow2_roundup (usize_t x) -{ - usize_t i = 1; - while (x > i) { - i <<= 1U; - } - return i; -} - -static usize_t -xd3_round_blksize (usize_t sz, usize_t blksz) -{ - usize_t mod = sz & (blksz-1); - - XD3_ASSERT (xd3_check_pow2 (blksz, NULL) == 0); - - return mod ? (sz + (blksz - mod)) : sz; -} - -/*********************************************************************** - Adler32 stream function: code copied from Zlib, defined in RFC1950 - ***********************************************************************/ - -#define A32_BASE 65521L /* Largest prime smaller than 2^16 */ -#define A32_NMAX 5552 /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#define A32_DO1(buf,i) {s1 += buf[i]; s2 += s1;} -#define A32_DO2(buf,i) A32_DO1(buf,i); A32_DO1(buf,i+1); -#define A32_DO4(buf,i) A32_DO2(buf,i); A32_DO2(buf,i+2); -#define A32_DO8(buf,i) A32_DO4(buf,i); A32_DO4(buf,i+4); -#define A32_DO16(buf) A32_DO8(buf,0); A32_DO8(buf,8); - -static unsigned long adler32 (unsigned long adler, const uint8_t *buf, - usize_t len) -{ - unsigned long s1 = adler & 0xffff; - unsigned long s2 = (adler >> 16) & 0xffff; - int k; - - while (len > 0) - { - k = (len < A32_NMAX) ? len : A32_NMAX; - len -= k; - - while (k >= 16) - { - A32_DO16(buf); - buf += 16; - k -= 16; - } - - if (k != 0) - { - do - { - s1 += *buf++; - s2 += s1; - } - while (--k); - } - - s1 %= A32_BASE; - s2 %= A32_BASE; - } - - return (s2 << 16) | s1; -} - -/*********************************************************************** - Run-length function - ***********************************************************************/ - -#if XD3_ENCODER -static usize_t -xd3_comprun (const uint8_t *seg, usize_t slook, uint8_t *run_cp) -{ - usize_t i; - usize_t run_l = 0; - uint8_t run_c = 0; - - for (i = 0; i < slook; i += 1) - { - NEXTRUN(seg[i]); - } - - (*run_cp) = run_c; - - return run_l; -} -#endif - -/*********************************************************************** - Basic encoder/decoder functions - ***********************************************************************/ - -static inline int -xd3_decode_byte (xd3_stream *stream, usize_t *val) -{ - if (stream->avail_in == 0) - { - stream->msg = "further input required"; - return XD3_INPUT; - } - - (*val) = stream->next_in[0]; - - DECODE_INPUT (1); - return 0; -} - -static inline int -xd3_decode_bytes (xd3_stream *stream, uint8_t *buf, usize_t *pos, usize_t size) -{ - usize_t want; - usize_t take; - - /* Note: The case where (*pos == size) happens when a zero-length - * appheader or code table is transmitted, but there is nothing in - * the standard against that. */ - while (*pos < size) - { - if (stream->avail_in == 0) - { - stream->msg = "further input required"; - return XD3_INPUT; - } - - want = size - *pos; - take = min (want, stream->avail_in); - - memcpy (buf + *pos, stream->next_in, (size_t) take); - - DECODE_INPUT (take); - (*pos) += take; - } - - return 0; -} - -#if XD3_ENCODER -static inline int -xd3_emit_byte (xd3_stream *stream, - xd3_output **outputp, - uint8_t code) -{ - xd3_output *output = (*outputp); - - if (output->next == output->avail) - { - xd3_output *aoutput; - - if ((aoutput = xd3_alloc_output (stream, output)) == NULL) - { - return ENOMEM; - } - - output = (*outputp) = aoutput; - } - - output->base[output->next++] = code; - - return 0; -} - -static inline int -xd3_emit_bytes (xd3_stream *stream, - xd3_output **outputp, - const uint8_t *base, - usize_t size) -{ - xd3_output *output = (*outputp); - - do - { - usize_t take; - - if (output->next == output->avail) - { - xd3_output *aoutput; - - if ((aoutput = xd3_alloc_output (stream, output)) == NULL) - { - return ENOMEM; - } - - output = (*outputp) = aoutput; - } - - take = min (output->avail - output->next, size); - - memcpy (output->base + output->next, base, (size_t) take); - - output->next += take; - size -= take; - base += take; - } - while (size > 0); - - return 0; -} -#endif /* XD3_ENCODER */ - -/********************************************************************* - Integer encoder/decoder functions - **********************************************************************/ - -#define DECODE_INTEGER_TYPE(PART,OFLOW) \ - while (stream->avail_in != 0) \ - { \ - usize_t next = stream->next_in[0]; \ - \ - DECODE_INPUT(1); \ - \ - if (PART & OFLOW) \ - { \ - stream->msg = "overflow in decode_integer"; \ - return XD3_INVALID_INPUT; \ - } \ - \ - PART = (PART << 7) | (next & 127); \ - \ - if ((next & 128) == 0) \ - { \ - (*val) = PART; \ - PART = 0; \ - return 0; \ - } \ - } \ - \ - stream->msg = "further input required"; \ - return XD3_INPUT - -#define READ_INTEGER_TYPE(TYPE, OFLOW) \ - TYPE val = 0; \ - const uint8_t *inp = (*inpp); \ - usize_t next; \ - \ - do \ - { \ - if (inp == max) \ - { \ - stream->msg = "end-of-input in read_integer"; \ - return XD3_INVALID_INPUT; \ - } \ - \ - if (val & OFLOW) \ - { \ - stream->msg = "overflow in read_intger"; \ - return XD3_INVALID_INPUT; \ - } \ - \ - next = (*inp++); \ - val = (val << 7) | (next & 127); \ - } \ - while (next & 128); \ - \ - (*valp) = val; \ - (*inpp) = inp; \ - \ - return 0 - -#define EMIT_INTEGER_TYPE() \ - /* max 64-bit value in base-7 encoding is 9.1 bytes */ \ - uint8_t buf[10]; \ - usize_t bufi = 10; \ - \ - /* This loop performs division and turns on all MSBs. */ \ - do \ - { \ - buf[--bufi] = (num & 127) | 128; \ - num >>= 7U; \ - } \ - while (num != 0); \ - \ - /* Turn off MSB of the last byte. */ \ - buf[9] &= 127; \ - \ - return xd3_emit_bytes (stream, output, buf + bufi, 10 - bufi) - -#define IF_SIZEOF32(x) if (num < (1U << (7 * (x)))) return (x); -#define IF_SIZEOF64(x) if (num < (1ULL << (7 * (x)))) return (x); - -#if USE_UINT32 -static inline uint32_t -xd3_sizeof_uint32_t (uint32_t num) -{ - IF_SIZEOF32(1); - IF_SIZEOF32(2); - IF_SIZEOF32(3); - IF_SIZEOF32(4); - return 5; -} - -static inline int -xd3_decode_uint32_t (xd3_stream *stream, uint32_t *val) -{ DECODE_INTEGER_TYPE (stream->dec_32part, UINT32_OFLOW_MASK); } - -static inline int -xd3_read_uint32_t (xd3_stream *stream, const uint8_t **inpp, - const uint8_t *max, uint32_t *valp) -{ READ_INTEGER_TYPE (uint32_t, UINT32_OFLOW_MASK); } - -#if XD3_ENCODER -static inline int -xd3_emit_uint32_t (xd3_stream *stream, xd3_output **output, uint32_t num) -{ EMIT_INTEGER_TYPE (); } -#endif -#endif - -#if USE_UINT64 -static inline int -xd3_decode_uint64_t (xd3_stream *stream, uint64_t *val) -{ DECODE_INTEGER_TYPE (stream->dec_64part, UINT64_OFLOW_MASK); } - -#if XD3_ENCODER -static inline int -xd3_emit_uint64_t (xd3_stream *stream, xd3_output **output, uint64_t num) -{ EMIT_INTEGER_TYPE (); } -#endif - -/* These are tested but not used */ -#if REGRESSION_TEST -static int -xd3_read_uint64_t (xd3_stream *stream, const uint8_t **inpp, - const uint8_t *max, uint64_t *valp) -{ READ_INTEGER_TYPE (uint64_t, UINT64_OFLOW_MASK); } - -static uint32_t -xd3_sizeof_uint64_t (uint64_t num) -{ - IF_SIZEOF64(1); - IF_SIZEOF64(2); - IF_SIZEOF64(3); - IF_SIZEOF64(4); - IF_SIZEOF64(5); - IF_SIZEOF64(6); - IF_SIZEOF64(7); - IF_SIZEOF64(8); - IF_SIZEOF64(9); - - return 10; -} -#endif - -#endif - -/*********************************************************************** - Address cache stuff - ***********************************************************************/ - -static int -xd3_alloc_cache (xd3_stream *stream) -{ - if (stream->acache.near_array != NULL) - { - xd3_free (stream, stream->acache.near_array); - } - - if (stream->acache.same_array != NULL) - { - xd3_free (stream, stream->acache.same_array); - } - - if (((stream->acache.s_near > 0) && - (stream->acache.near_array = (usize_t*) - xd3_alloc (stream, stream->acache.s_near, - (usize_t) sizeof (usize_t))) - == NULL) || - ((stream->acache.s_same > 0) && - (stream->acache.same_array = (usize_t*) - xd3_alloc (stream, stream->acache.s_same * 256, - (usize_t) sizeof (usize_t))) - == NULL)) - { - return ENOMEM; - } - - return 0; -} - -void -xd3_init_cache (xd3_addr_cache* acache) -{ - if (acache->s_near > 0) - { - memset (acache->near_array, 0, acache->s_near * sizeof (usize_t)); - acache->next_slot = 0; - } - - if (acache->s_same > 0) - { - memset (acache->same_array, 0, acache->s_same * 256 * sizeof (usize_t)); - } -} - -static void -xd3_update_cache (xd3_addr_cache* acache, usize_t addr) -{ - if (acache->s_near > 0) - { - acache->near_array[acache->next_slot] = addr; - acache->next_slot = (acache->next_slot + 1) % acache->s_near; - } - - if (acache->s_same > 0) - { - acache->same_array[addr % (acache->s_same*256)] = addr; - } -} - -#if XD3_ENCODER -/* OPT: this gets called a lot, can it be optimized? */ -static int -xd3_encode_address (xd3_stream *stream, - usize_t addr, - usize_t here, - uint8_t* mode) -{ - usize_t d, bestd; - usize_t i, bestm, ret; - xd3_addr_cache* acache = & stream->acache; - -#define SMALLEST_INT(x) do { if (((x) & ~127U) == 0) { goto good; } } while (0) - - /* Attempt to find the address mode that yields the smallest integer value - * for "d", the encoded address value, thereby minimizing the encoded size - * of the address. */ - bestd = addr; - bestm = VCD_SELF; - - XD3_ASSERT (addr < here); - - SMALLEST_INT (bestd); - - if ((d = here-addr) < bestd) - { - bestd = d; - bestm = VCD_HERE; - - SMALLEST_INT (bestd); - } - - for (i = 0; i < acache->s_near; i += 1) - { - /* Note: If we used signed computation here, we'd could compte d - * and then check (d >= 0 && d < bestd). */ - if (addr >= acache->near_array[i]) - { - d = addr - acache->near_array[i]; - - if (d < bestd) - { - bestd = d; - bestm = i+2; /* 2 counts the VCD_SELF, VCD_HERE modes */ - - SMALLEST_INT (bestd); - } - } - } - - if (acache->s_same > 0 && - acache->same_array[d = addr%(acache->s_same*256)] == addr) - { - bestd = d%256; - /* 2 + s_near offsets past the VCD_NEAR modes */ - bestm = acache->s_near + 2 + d/256; - - if ((ret = xd3_emit_byte (stream, & ADDR_TAIL (stream), bestd))) - { - return ret; - } - } - else - { - good: - - if ((ret = xd3_emit_size (stream, & ADDR_TAIL (stream), bestd))) - { - return ret; - } - } - - xd3_update_cache (acache, addr); - - (*mode) += bestm; - - return 0; -} -#endif - -static int -xd3_decode_address (xd3_stream *stream, usize_t here, - usize_t mode, const uint8_t **inpp, - const uint8_t *max, uint32_t *valp) -{ - int ret; - usize_t same_start = 2 + stream->acache.s_near; - - if (mode < same_start) - { - if ((ret = xd3_read_size (stream, inpp, max, valp))) { return ret; } - - switch (mode) - { - case VCD_SELF: - break; - case VCD_HERE: - (*valp) = here - (*valp); - break; - default: - (*valp) += stream->acache.near_array[mode - 2]; - break; - } - } - else - { - if (*inpp == max) - { - stream->msg = "address underflow"; - return XD3_INVALID_INPUT; - } - - mode -= same_start; - - (*valp) = stream->acache.same_array[mode*256 + (**inpp)]; - - (*inpp) += 1; - } - - xd3_update_cache (& stream->acache, *valp); - - return 0; -} - -/*********************************************************************** - Alloc/free -***********************************************************************/ - -static void* -__xd3_alloc_func (void* opaque, usize_t items, usize_t size) -{ - return malloc ((size_t) items * (size_t) size); -} - -static void -__xd3_free_func (void* opaque, void* address) -{ - free (address); -} - -static void* -xd3_alloc (xd3_stream *stream, - usize_t elts, - usize_t size) -{ - void *a = stream->alloc (stream->opaque, elts, size); - - if (a != NULL) - { - IF_DEBUG (stream->alloc_cnt += 1); - IF_DEBUG2 (DP(RINT "[stream %p malloc] size %u ptr %p\n", - stream, elts * size, a)); - } - else - { - stream->msg = "out of memory"; - } - - return a; -} - -static void -xd3_free (xd3_stream *stream, - void *ptr) -{ - if (ptr != NULL) - { - IF_DEBUG (stream->free_cnt += 1); - XD3_ASSERT (stream->free_cnt <= stream->alloc_cnt); - IF_DEBUG2 (DP(RINT "[stream %p free] %p\n", - stream, ptr)); - stream->free (stream->opaque, ptr); - } -} - -#if XD3_ENCODER -static void* -xd3_alloc0 (xd3_stream *stream, - usize_t elts, - usize_t size) -{ - void *a = xd3_alloc (stream, elts, size); - - if (a != NULL) - { - memset (a, 0, (size_t) (elts * size)); - } - - return a; -} - -static xd3_output* -xd3_alloc_output (xd3_stream *stream, - xd3_output *old_output) -{ - xd3_output *output; - uint8_t *base; - - if (stream->enc_free != NULL) - { - output = stream->enc_free; - stream->enc_free = output->next_page; - } - else - { - if ((output = (xd3_output*) xd3_alloc (stream, 1, - (usize_t) sizeof (xd3_output))) - == NULL) - { - return NULL; - } - - if ((base = (uint8_t*) xd3_alloc (stream, XD3_ALLOCSIZE, - sizeof (uint8_t))) == NULL) - { - xd3_free (stream, output); - return NULL; - } - - output->base = base; - output->avail = XD3_ALLOCSIZE; - } - - output->next = 0; - - if (old_output) - { - old_output->next_page = output; - } - - output->next_page = NULL; - - return output; -} - -static usize_t -xd3_sizeof_output (xd3_output *output) -{ - usize_t s = 0; - - for (; output; output = output->next_page) - { - s += output->next; - } - - return s; -} - -static void -xd3_freelist_output (xd3_stream *stream, - xd3_output *output) -{ - xd3_output *tmp; - - while (output) - { - tmp = output; - output = output->next_page; - - tmp->next = 0; - tmp->next_page = stream->enc_free; - stream->enc_free = tmp; - } -} - -static void -xd3_free_output (xd3_stream *stream, - xd3_output *output) -{ - xd3_output *next; - - again: - if (output == NULL) - { - return; - } - - next = output->next_page; - - xd3_free (stream, output->base); - xd3_free (stream, output); - - output = next; - goto again; -} -#endif /* XD3_ENCODER */ - -void -xd3_free_stream (xd3_stream *stream) -{ - xd3_iopt_buflist *blist = stream->iopt_alloc; - - while (blist != NULL) - { - xd3_iopt_buflist *tmp = blist; - blist = blist->next; - xd3_free (stream, tmp->buffer); - xd3_free (stream, tmp); - } - - xd3_free (stream, stream->large_table); - xd3_free (stream, stream->small_table); - xd3_free (stream, stream->small_prev); - -#if XD3_ENCODER - { - int i; - for (i = 0; i < ENC_SECTS; i += 1) - { - xd3_free_output (stream, stream->enc_heads[i]); - } - xd3_free_output (stream, stream->enc_free); - } -#endif - - xd3_free (stream, stream->acache.near_array); - xd3_free (stream, stream->acache.same_array); - - xd3_free (stream, stream->inst_sect.copied1); - xd3_free (stream, stream->addr_sect.copied1); - xd3_free (stream, stream->data_sect.copied1); - - xd3_free (stream, stream->dec_buffer); - xd3_free (stream, (uint8_t*) stream->dec_lastwin); - - xd3_free (stream, stream->buf_in); - xd3_free (stream, stream->dec_appheader); - xd3_free (stream, stream->dec_codetbl); - xd3_free (stream, stream->code_table_alloc); - -#if SECONDARY_ANY - xd3_free (stream, stream->inst_sect.copied2); - xd3_free (stream, stream->addr_sect.copied2); - xd3_free (stream, stream->data_sect.copied2); - - if (stream->sec_type != NULL) - { - stream->sec_type->destroy (stream, stream->sec_stream_d); - stream->sec_type->destroy (stream, stream->sec_stream_i); - stream->sec_type->destroy (stream, stream->sec_stream_a); - } -#endif - - xd3_free (stream, stream->whole_target.adds); - xd3_free (stream, stream->whole_target.inst); - xd3_free (stream, stream->whole_target.wininfo); - - XD3_ASSERT (stream->alloc_cnt == stream->free_cnt); - - memset (stream, 0, sizeof (xd3_stream)); -} - -#if (XD3_DEBUG > 1 || VCDIFF_TOOLS) -static const char* -xd3_rtype_to_string (xd3_rtype type, int print_mode) -{ - switch (type) - { - case XD3_NOOP: - return "NOOP "; - case XD3_RUN: - return "RUN "; - case XD3_ADD: - return "ADD "; - default: break; - } - if (! print_mode) - { - return "CPY "; - } - switch (type) - { - case XD3_CPY + 0: return "CPY_0"; - case XD3_CPY + 1: return "CPY_1"; - case XD3_CPY + 2: return "CPY_2"; - case XD3_CPY + 3: return "CPY_3"; - case XD3_CPY + 4: return "CPY_4"; - case XD3_CPY + 5: return "CPY_5"; - case XD3_CPY + 6: return "CPY_6"; - case XD3_CPY + 7: return "CPY_7"; - case XD3_CPY + 8: return "CPY_8"; - case XD3_CPY + 9: return "CPY_9"; - default: return "CPY>9"; - } -} -#endif - -/**************************************************************** - Stream configuration - ******************************************************************/ - -int -xd3_config_stream(xd3_stream *stream, - xd3_config *config) -{ - int ret; - xd3_config defcfg; - xd3_smatcher *smatcher = &stream->smatcher; - - if (config == NULL) - { - config = & defcfg; - memset (config, 0, sizeof (*config)); - } - - /* Initial setup: no error checks yet */ - memset (stream, 0, sizeof (*stream)); - - stream->winsize = config->winsize ? config->winsize : XD3_DEFAULT_WINSIZE; - stream->sprevsz = config->sprevsz ? config->sprevsz : XD3_DEFAULT_SPREVSZ; - stream->srcwin_maxsz = config->srcwin_maxsz ? - config->srcwin_maxsz : XD3_DEFAULT_SRCWINSZ; - - if (config->iopt_size == 0) - { - stream->iopt_size = XD3_ALLOCSIZE / sizeof(xd3_rinst); - stream->iopt_unlimited = 1; - } - else - { - stream->iopt_size = config->iopt_size; - } - - stream->getblk = config->getblk; - stream->alloc = config->alloc ? config->alloc : __xd3_alloc_func; - stream->free = config->freef ? config->freef : __xd3_free_func; - stream->opaque = config->opaque; - stream->flags = config->flags; - - /* Secondary setup. */ - stream->sec_data = config->sec_data; - stream->sec_inst = config->sec_inst; - stream->sec_addr = config->sec_addr; - - stream->sec_data.data_type = DATA_SECTION; - stream->sec_inst.data_type = INST_SECTION; - stream->sec_addr.data_type = ADDR_SECTION; - - /* Check static sizes. */ - if (sizeof (usize_t) != SIZEOF_USIZE_T || - sizeof (xoff_t) != SIZEOF_XOFF_T || - (ret = xd3_check_pow2(XD3_ALLOCSIZE, NULL))) - { - stream->msg = "incorrect compilation: wrong integer sizes"; - return XD3_INTERNAL; - } - - /* Check/set secondary compressor. */ - switch (stream->flags & XD3_SEC_TYPE) - { - case 0: - if (stream->flags & XD3_SEC_NOALL) - { - stream->msg = "XD3_SEC flags require a secondary compressor type"; - return XD3_INTERNAL; - } - break; - case XD3_SEC_FGK: - FGK_CASE (stream); - case XD3_SEC_DJW: - DJW_CASE (stream); - default: - stream->msg = "too many secondary compressor types set"; - return XD3_INTERNAL; - } - - /* Check/set encoder code table. */ - switch (stream->flags & XD3_ALT_CODE_TABLE) { - case 0: - stream->code_table_desc = & __rfc3284_code_table_desc; - stream->code_table_func = xd3_rfc3284_code_table; - break; -#if GENERIC_ENCODE_TABLES - case XD3_ALT_CODE_TABLE: - stream->code_table_desc = & __alternate_code_table_desc; - stream->code_table_func = xd3_alternate_code_table; - stream->comp_table_func = xd3_compute_alternate_table_encoding; - break; -#endif - default: - stream->msg = "alternate code table support was not compiled"; - return XD3_INTERNAL; - } - - /* Check sprevsz */ - if (smatcher->small_chain == 1 && - smatcher->small_lchain == 1) - { - stream->sprevsz = 0; - } - else - { - if ((ret = xd3_check_pow2 (stream->sprevsz, NULL))) - { - stream->msg = "sprevsz is required to be a power of two"; - return XD3_INTERNAL; - } - - stream->sprevmask = stream->sprevsz - 1; - } - - /* Default scanner settings. */ -#if XD3_ENCODER - switch (config->smatch_cfg) - { - IF_BUILD_SOFT(case XD3_SMATCH_SOFT: - { - *smatcher = config->smatcher_soft; - smatcher->string_match = __smatcher_soft.string_match; - smatcher->name = __smatcher_soft.name; - if (smatcher->large_look < MIN_MATCH || - smatcher->large_step < 1 || - smatcher->small_look < MIN_MATCH) - { - stream->msg = "invalid soft string-match config"; - return XD3_INVALID; - } - break; - }) - - IF_BUILD_DEFAULT(case XD3_SMATCH_DEFAULT: - *smatcher = __smatcher_default; - break;) - IF_BUILD_SLOW(case XD3_SMATCH_SLOW: - *smatcher = __smatcher_slow; - break;) - IF_BUILD_FASTEST(case XD3_SMATCH_FASTEST: - *smatcher = __smatcher_fastest; - break;) - IF_BUILD_FASTER(case XD3_SMATCH_FASTER: - *smatcher = __smatcher_faster; - break;) - IF_BUILD_FAST(case XD3_SMATCH_FAST: - *smatcher = __smatcher_fast; - break;) - default: - stream->msg = "invalid string match config type"; - return XD3_INTERNAL; - } - - if (config->smatch_cfg == XD3_SMATCH_DEFAULT && - (stream->flags & XD3_COMPLEVEL_MASK) != 0) - { - int level = (stream->flags & XD3_COMPLEVEL_MASK) >> XD3_COMPLEVEL_SHIFT; - - switch (level) - { - case 1: - IF_BUILD_FASTEST(*smatcher = __smatcher_fastest; - break;) - case 2: - IF_BUILD_FASTER(*smatcher = __smatcher_faster; - break;) - case 3: case 4: case 5: - IF_BUILD_FAST(*smatcher = __smatcher_fast; - break;) - case 6: - IF_BUILD_DEFAULT(*smatcher = __smatcher_default; - break;) - default: - IF_BUILD_SLOW(*smatcher = __smatcher_slow; - break;) - IF_BUILD_DEFAULT(*smatcher = __smatcher_default; - break;) - IF_BUILD_FAST(*smatcher = __smatcher_fast; - break;) - IF_BUILD_FASTER(*smatcher = __smatcher_faster; - break;) - IF_BUILD_FASTEST(*smatcher = __smatcher_fastest; - break;) - } - } -#endif - - return 0; -} - -/*********************************************************** - Getblk interface - ***********************************************************/ - -inline -xoff_t xd3_source_eof(const xd3_source *src) -{ - xoff_t r = (src->blksize * src->max_blkno) + (xoff_t)src->onlastblk; - return r; -} - -inline -usize_t xd3_bytes_on_srcblk (xd3_source *src, xoff_t blkno) -{ - usize_t r = (blkno == src->max_blkno ? - src->onlastblk : - src->blksize); - return r; -} - -/* This function interfaces with the client getblk function, checks - * its results, updates frontier_blkno, max_blkno, onlastblk, eof_known. */ -static int -xd3_getblk (xd3_stream *stream, xoff_t blkno) -{ - int ret; - xd3_source *source = stream->src; - - if (source->curblk == NULL || blkno != source->curblkno) - { - source->getblkno = blkno; - - if (stream->getblk == NULL) - { - stream->msg = "getblk source input"; - return XD3_GETSRCBLK; - } - - ret = stream->getblk (stream, source, blkno); - if (ret != 0) - { - IF_DEBUG1 (DP(RINT "[getblk] app error blkno %"Q"u: %s\n", - blkno, xd3_strerror (ret))); - return ret; - } - } - - if (blkno >= source->frontier_blkno) - { - if (blkno > source->max_blkno) - { - source->max_blkno = blkno; - source->onlastblk = source->onblk; - } - - if (source->onblk == source->blksize) - { - source->frontier_blkno = blkno + 1; - - IF_DEBUG2 (DP(RINT "[getblk] full source blkno %"Q"u: " - "source length unknown %"Q"u\n", - blkno, - xd3_source_eof (source))); - } - else - { - if (!source->eof_known) - { - IF_DEBUG2 (DP(RINT "[getblk] eof block has %d bytes; " - "source length known %"Q"u\n", - xd3_bytes_on_srcblk (source, blkno), - xd3_source_eof (source))); - source->eof_known = 1; - } - - source->frontier_blkno = blkno; - } - } - - XD3_ASSERT (source->curblk != NULL); - IF_DEBUG2 (DP(RINT "[getblk] read source block %"Q"u onblk %u blksize %u\n", - blkno, source->onblk, source->blksize)); - - if (blkno == source->max_blkno) - { - /* In case the application sets the source as 1 block w/ a - preset buffer. */ - source->onlastblk = source->onblk; - - if (source->onblk == source->blksize) - { - source->frontier_blkno = blkno + 1; - } - } - return 0; -} - -/*********************************************************** - Stream open/close - ***************************************************************/ - -int -xd3_set_source (xd3_stream *stream, - xd3_source *src) -{ - usize_t shiftby; - - stream->src = src; - src->srclen = 0; - src->srcbase = 0; - - /* Enforce power-of-two blocksize so that source-block number - * calculations are cheap. */ - if (!xd3_check_pow2 (src->blksize, &shiftby) == 0) - { - int check; - src->blksize = xd3_pow2_roundup(src->blksize); - check = xd3_check_pow2 (src->blksize, &shiftby); - XD3_ASSERT (check == 0); - IF_DEBUG1 (DP(RINT "raising srcblksz to %u\n", src->blksize)); - } - - src->shiftby = shiftby; - src->maskby = (1 << shiftby) - 1; - return 0; -} - -int -xd3_set_source_and_size (xd3_stream *stream, - xd3_source *user_source, - xoff_t source_size) { - int ret = xd3_set_source (stream, user_source); - if (ret == 0) - { - stream->src->eof_known = 1; - IF_DEBUG2 (DP(RINT "[set source] size known %"Q"u\n", - source_size)); - - xd3_blksize_div(source_size, - stream->src, - &stream->src->max_blkno, - &stream->src->onlastblk); - } - return ret; -} - -void -xd3_abort_stream (xd3_stream *stream) -{ - stream->dec_state = DEC_ABORTED; - stream->enc_state = ENC_ABORTED; -} - -int -xd3_close_stream (xd3_stream *stream) -{ - if (stream->enc_state != 0 && stream->enc_state != ENC_ABORTED) - { - if (stream->buf_leftover != NULL) - { - stream->msg = "encoding is incomplete"; - return XD3_INTERNAL; - } - - if (stream->enc_state == ENC_POSTWIN) - { -#if XD3_ENCODER - xd3_encode_reset (stream); -#endif - stream->current_window += 1; - stream->enc_state = ENC_INPUT; - } - - /* If encoding, should be ready for more input but not actually - have any. */ - if (stream->enc_state != ENC_INPUT || stream->avail_in != 0) - { - stream->msg = "encoding is incomplete"; - return XD3_INTERNAL; - } - } - else - { - switch (stream->dec_state) - { - case DEC_VCHEAD: - case DEC_WININD: - /* TODO: Address the zero-byte ambiguity. Does the encoder - * emit a window or not? If so, then catch an error here. - * If not, need another routine to say - * decode_at_least_one_if_empty. */ - case DEC_ABORTED: - break; - default: - /* If decoding, should be ready for the next window. */ - stream->msg = "EOF in decode"; - return XD3_INTERNAL; - } - } - - return 0; -} - -/************************************************************** - Application header - ****************************************************************/ - -int -xd3_get_appheader (xd3_stream *stream, - uint8_t **data, - usize_t *size) -{ - if (stream->dec_state < DEC_WININD) - { - stream->msg = "application header not available"; - return XD3_INTERNAL; - } - - (*data) = stream->dec_appheader; - (*size) = stream->dec_appheadsz; - return 0; -} - -/********************************************************** - Decoder stuff - *************************************************/ - -#include "xdelta3-decode.h" - -/**************************************************************** - Encoder stuff - *****************************************************************/ - -#if XD3_ENCODER -void -xd3_set_appheader (xd3_stream *stream, - const uint8_t *data, - usize_t size) -{ - stream->enc_appheader = data; - stream->enc_appheadsz = size; -} - -#if XD3_DEBUG -static int -xd3_iopt_check (xd3_stream *stream) -{ - usize_t ul = xd3_rlist_length (& stream->iopt_used); - usize_t fl = xd3_rlist_length (& stream->iopt_free); - - return (ul + fl + (stream->iout ? 1 : 0)) == stream->iopt_size; -} -#endif - -static xd3_rinst* -xd3_iopt_free (xd3_stream *stream, xd3_rinst *i) -{ - xd3_rinst *n = xd3_rlist_remove (i); - xd3_rlist_push_back (& stream->iopt_free, i); - return n; -} - -static void -xd3_iopt_free_nonadd (xd3_stream *stream, xd3_rinst *i) -{ - if (i->type != XD3_ADD) - { - xd3_rlist_push_back (& stream->iopt_free, i); - } -} - -/* When an instruction is ready to flush from the iopt buffer, this - * function is called to produce an encoding. It writes the - * instruction plus size, address, and data to the various encoding - * sections. */ -static int -xd3_iopt_finish_encoding (xd3_stream *stream, xd3_rinst *inst) -{ - int ret; - - /* Check for input overflow. */ - XD3_ASSERT (inst->pos + inst->size <= stream->avail_in); - - switch (inst->type) - { - case XD3_CPY: - { - /* the address may have an offset if there is a source window. */ - usize_t addr; - xd3_source *src = stream->src; - - if (src != NULL) - { - /* If there is a source copy, the source must have its - * source window decided before we can encode. This can - * be bad -- we have to make this decision even if no - * source matches have been found. */ - if (stream->srcwin_decided == 0) - { - if ((ret = xd3_srcwin_setup (stream))) { return ret; } - } - else - { - stream->srcwin_decided_early = (!stream->src->eof_known || - (stream->srcwin_cksum_pos < - xd3_source_eof (stream->src))); - } - - /* xtra field indicates the copy is from the source */ - if (inst->xtra) - { - XD3_ASSERT (inst->addr >= src->srcbase); - XD3_ASSERT (inst->addr + inst->size <= - src->srcbase + src->srclen); - addr = (usize_t)(inst->addr - src->srcbase); - stream->n_scpy += 1; - stream->l_scpy += (xoff_t) inst->size; - } - else - { - /* with source window: target copy address is offset - * by taroff. */ - addr = stream->taroff + (usize_t) inst->addr; - stream->n_tcpy += 1; - stream->l_tcpy += (xoff_t) inst->size; - } - } - else - { - addr = (usize_t) inst->addr; - stream->n_tcpy += 1; - stream->l_tcpy += inst->size; - } - - /* Note: used to assert inst->size >= MIN_MATCH, but not true - * for merge operations & identical match heuristics. */ - /* the "here" position is always offset by taroff */ - if ((ret = xd3_encode_address (stream, addr, inst->pos + stream->taroff, - & inst->type))) - { - return ret; - } - - IF_DEBUG2 ({ - static int cnt; - DP(RINT "[iopt copy:%d] pos %"Q"u-%"Q"u addr %"Q"u-%"Q"u size %u\n", - cnt++, - stream->total_in + inst->pos, - stream->total_in + inst->pos + inst->size, - inst->addr, inst->addr + inst->size, inst->size); - }); - break; - } - case XD3_RUN: - { - XD3_ASSERT (inst->size >= MIN_MATCH); - - if ((ret = xd3_emit_byte (stream, & DATA_TAIL (stream), inst->xtra))) { return ret; } - - stream->n_run += 1; - stream->l_run += inst->size; - - IF_DEBUG2 ({ - static int cnt; - DP(RINT "[iopt run:%d] pos %"Q"u size %u\n", cnt++, stream->total_in + inst->pos, inst->size); - }); - break; - } - case XD3_ADD: - { - if ((ret = xd3_emit_bytes (stream, & DATA_TAIL (stream), - stream->next_in + inst->pos, inst->size))) { return ret; } - - stream->n_add += 1; - stream->l_add += inst->size; - - IF_DEBUG2 ({ - static int cnt; - DP(RINT "[iopt add:%d] pos %"Q"u size %u\n", cnt++, stream->total_in + inst->pos, inst->size); - }); - - break; - } - } - - /* This is the only place stream->unencoded_offset is incremented. */ - XD3_ASSERT (stream->unencoded_offset == inst->pos); - stream->unencoded_offset += inst->size; - - inst->code2 = 0; - - XD3_CHOOSE_INSTRUCTION (stream, stream->iout, inst); - - if (stream->iout != NULL) - { - if (stream->iout->code2 != 0) - { - if ((ret = xd3_emit_double (stream, stream->iout, inst, stream->iout->code2))) { return ret; } - - xd3_iopt_free_nonadd (stream, stream->iout); - xd3_iopt_free_nonadd (stream, inst); - stream->iout = NULL; - return 0; - } - else - { - if ((ret = xd3_emit_single (stream, stream->iout, stream->iout->code1))) { return ret; } - - xd3_iopt_free_nonadd (stream, stream->iout); - } - } - - stream->iout = inst; - - return 0; -} - -/* This possibly encodes an add instruction, iadd, which must remain - * on the stack until the following call to - * xd3_iopt_finish_encoding. */ -static int -xd3_iopt_add (xd3_stream *stream, usize_t pos, xd3_rinst *iadd) -{ - int ret; - usize_t off = stream->unencoded_offset; - - if (pos > off) - { - iadd->type = XD3_ADD; - iadd->pos = off; - iadd->size = pos - off; - - if ((ret = xd3_iopt_finish_encoding (stream, iadd))) { return ret; } - } - - return 0; -} - -/* This function calls xd3_iopt_finish_encoding to finish encoding an - * instruction, and it may also produce an add instruction for an - * unmatched region. */ -static int -xd3_iopt_add_encoding (xd3_stream *stream, xd3_rinst *inst) -{ - int ret; - xd3_rinst iadd; - - if ((ret = xd3_iopt_add (stream, inst->pos, & iadd))) { return ret; } - - if ((ret = xd3_iopt_finish_encoding (stream, inst))) { return ret; } - - return 0; -} - -/* Generates a final add instruction to encode the remaining input. */ -static int -xd3_iopt_add_finalize (xd3_stream *stream) -{ - int ret; - xd3_rinst iadd; - - if ((ret = xd3_iopt_add (stream, stream->avail_in, & iadd))) { return ret; } - - if (stream->iout) - { - if ((ret = xd3_emit_single (stream, stream->iout, stream->iout->code1))) { return ret; } - - xd3_iopt_free_nonadd (stream, stream->iout); - stream->iout = NULL; - } - - return 0; -} - -/* Compact the instruction buffer by choosing the best non-overlapping - * instructions when lazy string-matching. There are no ADDs in the - * iopt buffer because those are synthesized in xd3_iopt_add_encoding - * and during xd3_iopt_add_finalize. */ -static int -xd3_iopt_flush_instructions (xd3_stream *stream, int force) -{ - xd3_rinst *r1 = xd3_rlist_front (& stream->iopt_used); - xd3_rinst *r2; - xd3_rinst *r3; - usize_t r1end; - usize_t r2end; - usize_t r2off; - usize_t r2moff; - usize_t gap; - usize_t flushed; - int ret; - - XD3_ASSERT (xd3_iopt_check (stream)); - - /* Note: once tried to skip this step if it's possible to assert - * there are no overlapping instructions. Doesn't work because - * xd3_opt_erase leaves overlapping instructions. */ - while (! xd3_rlist_end (& stream->iopt_used, r1) && - ! xd3_rlist_end (& stream->iopt_used, r2 = xd3_rlist_next (r1))) - { - r1end = r1->pos + r1->size; - - /* If the instructions do not overlap, continue. */ - if (r1end <= r2->pos) - { - r1 = r2; - continue; - } - - r2end = r2->pos + r2->size; - - /* The min_match adjustments prevent this. */ - XD3_ASSERT (r2end > (r1end + LEAST_MATCH_INCR)); - - /* If r3 is available... */ - if (! xd3_rlist_end (& stream->iopt_used, r3 = xd3_rlist_next (r2))) - { - /* If r3 starts before r1 finishes or just about, r2 is irrelevant */ - if (r3->pos <= r1end + 1) - { - xd3_iopt_free (stream, r2); - continue; - } - } - else if (! force) - { - /* Unless force, end the loop when r3 is not available. */ - break; - } - - r2off = r2->pos - r1->pos; - r2moff = r2end - r1end; - gap = r2end - r1->pos; - - /* If the two matches overlap almost entirely, choose the better match - * and discard the other. The else branch can still create inefficient - * copies, e.g., a 4-byte copy that takes 4 bytes to encode, which - * xd3_smatch() wouldn't allow by its crude efficiency check. However, - * in this case there are adjacent copies which mean the add would cost - * one extra byte. Allow the inefficiency here. */ - if (gap < 2*MIN_MATCH || r2moff <= 2 || r2off <= 2) - { - /* Only one match should be used, choose the longer one. */ - if (r1->size < r2->size) - { - xd3_iopt_free (stream, r1); - r1 = r2; - } - else - { - /* We are guaranteed that r1 does not overlap now, so advance past r2 */ - r1 = xd3_iopt_free (stream, r2); - } - continue; - } - else - { - /* Shorten one of the instructions -- could be optimized - * based on the address cache. */ - usize_t average; - usize_t newsize; - usize_t adjust1; - - XD3_ASSERT (r1end > r2->pos && r2end > r1->pos); - - /* Try to balance the length of both instructions, but avoid - * making both longer than MAX_MATCH_SPLIT . */ - average = gap / 2; - newsize = min (MAX_MATCH_SPLIT, gap - average); - - /* Should be possible to simplify this code. */ - if (newsize > r1->size) - { - /* shorten r2 */ - adjust1 = r1end - r2->pos; - } - else if (newsize > r2->size) - { - /* shorten r1 */ - adjust1 = r1end - r2->pos; - - XD3_ASSERT (r1->size > adjust1); - - r1->size -= adjust1; - - /* don't shorten r2 */ - adjust1 = 0; - } - else - { - /* shorten r1 */ - adjust1 = r1->size - newsize; - - if (r2->pos > r1end - adjust1) - { - adjust1 -= r2->pos - (r1end - adjust1); - } - - XD3_ASSERT (r1->size > adjust1); - - r1->size -= adjust1; - - /* shorten r2 */ - XD3_ASSERT (r1->pos + r1->size >= r2->pos); - - adjust1 = r1->pos + r1->size - r2->pos; - } - - /* Fallthrough above if-else, shorten r2 */ - XD3_ASSERT (r2->size > adjust1); - - r2->size -= adjust1; - r2->pos += adjust1; - r2->addr += adjust1; - - XD3_ASSERT (r1->size >= MIN_MATCH); - XD3_ASSERT (r2->size >= MIN_MATCH); - - r1 = r2; - } - } - - XD3_ASSERT (xd3_iopt_check (stream)); - - /* If forcing, pick instructions until the list is empty, otherwise - * this empties 50% of the queue. */ - for (flushed = 0; ! xd3_rlist_empty (& stream->iopt_used); ) - { - xd3_rinst *renc = xd3_rlist_pop_front (& stream->iopt_used); - if ((ret = xd3_iopt_add_encoding (stream, renc))) - { - return ret; - } - - if (! force) - { - if (++flushed > stream->iopt_size / 2) - { - break; - } - - /* If there are only two instructions remaining, break, - * because they were not optimized. This means there were - * more than 50% eliminated by the loop above. */ - r1 = xd3_rlist_front (& stream->iopt_used); - if (xd3_rlist_end(& stream->iopt_used, r1) || - xd3_rlist_end(& stream->iopt_used, r2 = xd3_rlist_next (r1)) || - xd3_rlist_end(& stream->iopt_used, r3 = xd3_rlist_next (r2))) - { - break; - } - } - } - - XD3_ASSERT (xd3_iopt_check (stream)); - - XD3_ASSERT (!force || xd3_rlist_length (& stream->iopt_used) == 0); - - return 0; -} - -static int -xd3_iopt_get_slot (xd3_stream *stream, xd3_rinst** iptr) -{ - xd3_rinst *i; - int ret; - - if (xd3_rlist_empty (& stream->iopt_free)) - { - if (stream->iopt_unlimited) - { - usize_t elts = XD3_ALLOCSIZE / sizeof(xd3_rinst); - - if ((ret = xd3_alloc_iopt (stream, elts))) - { - return ret; - } - - stream->iopt_size += elts; - } - else - { - if ((ret = xd3_iopt_flush_instructions (stream, 0))) { return ret; } - - XD3_ASSERT (! xd3_rlist_empty (& stream->iopt_free)); - } - } - - i = xd3_rlist_pop_back (& stream->iopt_free); - - xd3_rlist_push_back (& stream->iopt_used, i); - - (*iptr) = i; - - ++stream->i_slots_used; - - return 0; -} - -/* A copy is about to be emitted that extends backwards to POS, - * therefore it may completely cover some existing instructions in the - * buffer. If an instruction is completely covered by this new match, - * erase it. If the new instruction is covered by the previous one, - * return 1 to skip it. */ -static void -xd3_iopt_erase (xd3_stream *stream, usize_t pos, usize_t size) -{ - while (! xd3_rlist_empty (& stream->iopt_used)) - { - xd3_rinst *r = xd3_rlist_back (& stream->iopt_used); - - /* Verify that greedy is working. The previous instruction - * should end before the new one begins. */ - XD3_ASSERT ((stream->flags & XD3_BEGREEDY) == 0 || (r->pos + r->size <= pos)); - /* Verify that min_match is working. The previous instruction - * should end before the new one ends. */ - XD3_ASSERT ((stream->flags & XD3_BEGREEDY) != 0 || (r->pos + r->size < pos + size)); - - /* See if the last instruction starts before the new - * instruction. If so, there is nothing to erase. */ - if (r->pos < pos) - { - return; - } - - /* Otherwise, the new instruction covers the old one, delete it - and repeat. */ - xd3_rlist_remove (r); - xd3_rlist_push_back (& stream->iopt_free, r); - --stream->i_slots_used; - } -} - -/* This function tells the last matched input position. */ -static usize_t -xd3_iopt_last_matched (xd3_stream *stream) -{ - xd3_rinst *r; - - if (xd3_rlist_empty (& stream->iopt_used)) - { - return 0; - } - - r = xd3_rlist_back (& stream->iopt_used); - - return r->pos + r->size; -} - -/********************************************************* - Emit routines - ***********************************************************/ - -static int -xd3_emit_single (xd3_stream *stream, xd3_rinst *single, usize_t code) -{ - int has_size = stream->code_table[code].size1 == 0; - int ret; - - IF_DEBUG2 (DP(RINT "[emit1] %u %s (%u) code %u\n", - single->pos, - xd3_rtype_to_string ((xd3_rtype) single->type, 0), - single->size, - code)); - - if ((ret = xd3_emit_byte (stream, & INST_TAIL (stream), code))) - { - return ret; - } - - if (has_size) - { - if ((ret = xd3_emit_size (stream, & INST_TAIL (stream), single->size))) - { - return ret; - } - } - - return 0; -} - -static int -xd3_emit_double (xd3_stream *stream, xd3_rinst *first, - xd3_rinst *second, usize_t code) -{ - int ret; - - /* All double instructions use fixed sizes, so all we need to do is - * output the instruction code, no sizes. */ - XD3_ASSERT (stream->code_table[code].size1 != 0 && - stream->code_table[code].size2 != 0); - - if ((ret = xd3_emit_byte (stream, & INST_TAIL (stream), code))) - { - return ret; - } - - IF_DEBUG2 (DP(RINT "[emit2]: %u %s (%u) %s (%u) code %u\n", - first->pos, - xd3_rtype_to_string ((xd3_rtype) first->type, 0), - first->size, - xd3_rtype_to_string ((xd3_rtype) second->type, 0), - second->size, - code)); - - return 0; -} - -/* This enters a potential run instruction into the iopt buffer. The - * position argument is relative to the target window. */ -static int -xd3_emit_run (xd3_stream *stream, usize_t pos, usize_t size, uint8_t *run_c) -{ - xd3_rinst* ri; - int ret; - - if ((ret = xd3_iopt_get_slot (stream, & ri))) { return ret; } - - ri->type = XD3_RUN; - ri->xtra = *run_c; - ri->pos = pos; - ri->size = size; - - return 0; -} - -/* This enters a potential copy instruction into the iopt buffer. The - * position argument is relative to the target window.. */ -int -xd3_found_match (xd3_stream *stream, usize_t pos, - usize_t size, xoff_t addr, int is_source) -{ - xd3_rinst* ri; - int ret; - - if ((ret = xd3_iopt_get_slot (stream, & ri))) { return ret; } - - ri->type = XD3_CPY; - ri->xtra = is_source; - ri->pos = pos; - ri->size = size; - ri->addr = addr; - - return 0; -} - -static int -xd3_emit_hdr (xd3_stream *stream) -{ - int ret; - int use_secondary = stream->sec_type != NULL; - int use_adler32 = stream->flags & (XD3_ADLER32 | XD3_ADLER32_RECODE); - int vcd_source = xd3_encoder_used_source (stream); - usize_t win_ind = 0; - usize_t del_ind = 0; - usize_t enc_len; - usize_t tgt_len; - usize_t data_len; - usize_t inst_len; - usize_t addr_len; - - if (stream->current_window == 0) - { - usize_t hdr_ind = 0; - int use_appheader = stream->enc_appheader != NULL; - int use_gencodetbl = GENERIC_ENCODE_TABLES && - (stream->code_table_desc != & __rfc3284_code_table_desc); - - if (use_secondary) { hdr_ind |= VCD_SECONDARY; } - if (use_gencodetbl) { hdr_ind |= VCD_CODETABLE; } - if (use_appheader) { hdr_ind |= VCD_APPHEADER; } - - if ((ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_MAGIC1)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_MAGIC2)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_MAGIC3)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_VERSION)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), hdr_ind)) != 0) - { - return ret; - } - - /* Secondary compressor ID */ -#if SECONDARY_ANY - if (use_secondary && - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - stream->sec_type->id))) - { - return ret; - } -#endif - - /* Compressed code table */ - if (use_gencodetbl) - { - usize_t code_table_size; - const uint8_t *code_table_data; - - if ((ret = stream->comp_table_func (stream, & code_table_data, - & code_table_size))) - { - return ret; - } - - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), - code_table_size + 2)) || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - stream->code_table_desc->near_modes)) || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - stream->code_table_desc->same_modes)) || - (ret = xd3_emit_bytes (stream, & HDR_TAIL (stream), - code_table_data, code_table_size))) - { - return ret; - } - } - - /* Application header */ - if (use_appheader) - { - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), - stream->enc_appheadsz)) || - (ret = xd3_emit_bytes (stream, & HDR_TAIL (stream), - stream->enc_appheader, - stream->enc_appheadsz))) - { - return ret; - } - } - } - - /* try to compress this window */ -#if SECONDARY_ANY - if (use_secondary) - { - int data_sec = 0; - int inst_sec = 0; - int addr_sec = 0; - -# define ENCODE_SECONDARY_SECTION(UPPER,LOWER) \ - ((stream->flags & XD3_SEC_NO ## UPPER) == 0 && \ - (ret = xd3_encode_secondary (stream, \ - & UPPER ## _HEAD (stream), \ - & UPPER ## _TAIL (stream), \ - & xd3_sec_ ## LOWER (stream), \ - & stream->sec_ ## LOWER, \ - & LOWER ## _sec))) - - if (ENCODE_SECONDARY_SECTION (DATA, data) || - ENCODE_SECONDARY_SECTION (INST, inst) || - ENCODE_SECONDARY_SECTION (ADDR, addr)) - { - return ret; - } - - del_ind |= (data_sec ? VCD_DATACOMP : 0); - del_ind |= (inst_sec ? VCD_INSTCOMP : 0); - del_ind |= (addr_sec ? VCD_ADDRCOMP : 0); - } -#endif - - /* if (vcd_target) { win_ind |= VCD_TARGET; } */ - if (vcd_source) { win_ind |= VCD_SOURCE; } - if (use_adler32) { win_ind |= VCD_ADLER32; } - - /* window indicator */ - if ((ret = xd3_emit_byte (stream, & HDR_TAIL (stream), win_ind))) - { - return ret; - } - - /* source window */ - if (vcd_source) - { - /* or (vcd_target) { ... } */ - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), - stream->src->srclen)) || - (ret = xd3_emit_offset (stream, & HDR_TAIL (stream), - stream->src->srcbase))) { return ret; } - } - - tgt_len = stream->avail_in; - data_len = xd3_sizeof_output (DATA_HEAD (stream)); - inst_len = xd3_sizeof_output (INST_HEAD (stream)); - addr_len = xd3_sizeof_output (ADDR_HEAD (stream)); - - /* The enc_len field is a redundency for future extensions.*/ - enc_len = (1 + (xd3_sizeof_size (tgt_len) + - xd3_sizeof_size (data_len) + - xd3_sizeof_size (inst_len) + - xd3_sizeof_size (addr_len)) + - data_len + - inst_len + - addr_len + - (use_adler32 ? 4 : 0)); - - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), enc_len)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), tgt_len)) || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), del_ind)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), data_len)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), inst_len)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), addr_len))) - { - return ret; - } - - if (use_adler32) - { - uint8_t send[4]; - uint32_t a32; - - if (stream->flags & XD3_ADLER32) - { - a32 = adler32 (1L, stream->next_in, stream->avail_in); - } - else - { - a32 = stream->recode_adler32; - } - - /* Four bytes. */ - send[0] = (uint8_t) (a32 >> 24); - send[1] = (uint8_t) (a32 >> 16); - send[2] = (uint8_t) (a32 >> 8); - send[3] = (uint8_t) (a32 & 0x000000FFU); - - if ((ret = xd3_emit_bytes (stream, & HDR_TAIL (stream), send, 4))) - { - return ret; - } - } - - return 0; -} - -/**************************************************************** - Encode routines - ****************************************************************/ - -static int -xd3_encode_buffer_leftover (xd3_stream *stream) -{ - usize_t take; - usize_t room; - - /* Allocate the buffer. */ - if (stream->buf_in == NULL && - (stream->buf_in = (uint8_t*) xd3_alloc (stream, stream->winsize, 1)) == NULL) - { - return ENOMEM; - } - - IF_DEBUG2 (DP(RINT "[leftover] flush?=%s\n", (stream->flags & XD3_FLUSH) ? "yes" : "no")); - - /* Take leftover input first. */ - if (stream->buf_leftover != NULL) - { - XD3_ASSERT (stream->buf_avail == 0); - XD3_ASSERT (stream->buf_leftavail < stream->winsize); - - IF_DEBUG2 (DP(RINT "[leftover] previous %u avail %u\n", stream->buf_leftavail, stream->avail_in)); - - memcpy (stream->buf_in, stream->buf_leftover, stream->buf_leftavail); - - stream->buf_leftover = NULL; - stream->buf_avail = stream->buf_leftavail; - } - - /* Copy into the buffer. */ - room = stream->winsize - stream->buf_avail; - take = min (room, stream->avail_in); - - memcpy (stream->buf_in + stream->buf_avail, stream->next_in, take); - - stream->buf_avail += take; - - if (take < stream->avail_in) - { - /* Buffer is full */ - stream->buf_leftover = stream->next_in + take; - stream->buf_leftavail = stream->avail_in - take; - } - else if ((stream->buf_avail < stream->winsize) && !(stream->flags & XD3_FLUSH)) - { - /* Buffer has space */ - IF_DEBUG2 (DP(RINT "[leftover] emptied %u\n", take)); - return XD3_INPUT; - } - - /* Use the buffer: */ - IF_DEBUG2 (DP(RINT "[leftover] take %u remaining %u\n", take, stream->buf_leftavail)); - stream->next_in = stream->buf_in; - stream->avail_in = stream->buf_avail; - stream->buf_avail = 0; - - return 0; -} - -/* Allocates one block of xd3_rlist elements */ -static int -xd3_alloc_iopt (xd3_stream *stream, usize_t elts) -{ - usize_t i; - xd3_iopt_buflist* last = - (xd3_iopt_buflist*) xd3_alloc (stream, sizeof (xd3_iopt_buflist), 1); - - if (last == NULL || - (last->buffer = (xd3_rinst*) xd3_alloc (stream, sizeof (xd3_rinst), elts)) == NULL) - { - return ENOMEM; - } - - last->next = stream->iopt_alloc; - stream->iopt_alloc = last; - - for (i = 0; i < elts; i += 1) - { - xd3_rlist_push_back (& stream->iopt_free, & last->buffer[i]); - } - - return 0; -} - -/* This function allocates all memory initially used by the encoder. */ -static int -xd3_encode_init (xd3_stream *stream, int full_init) -{ - int i; - - if (full_init) - { - int large_comp = (stream->src != NULL); - int small_comp = ! (stream->flags & XD3_NOCOMPRESS); - - /* Memory allocations for checksum tables are delayed until - * xd3_string_match_init in the first call to string_match--that way - * identical or short inputs require no table allocation. */ - if (large_comp) - { - usize_t hash_values = (stream->srcwin_maxsz / - stream->smatcher.large_step); - - xd3_size_hashtable (stream, - hash_values, - & stream->large_hash); - } - - if (small_comp) - { - /* TODO: This is under devel: used to have min(sprevsz) here, which sort - * of makes sense, but observed fast performance w/ larger tables, which - * also sort of makes sense. @@@ */ - usize_t hash_values = stream->winsize; - - xd3_size_hashtable (stream, - hash_values, - & stream->small_hash); - } - } - - /* data buffers */ - for (i = 0; i < ENC_SECTS; i += 1) - { - if ((stream->enc_heads[i] = - stream->enc_tails[i] = - xd3_alloc_output (stream, NULL)) == NULL) - { - return ENOMEM; - } - } - - /* iopt buffer */ - xd3_rlist_init (& stream->iopt_used); - xd3_rlist_init (& stream->iopt_free); - - if (xd3_alloc_iopt (stream, stream->iopt_size) != 0) { goto fail; } - - XD3_ASSERT (xd3_rlist_length (& stream->iopt_free) == stream->iopt_size); - XD3_ASSERT (xd3_rlist_length (& stream->iopt_used) == 0); - - /* address cache, code table */ - stream->acache.s_near = stream->code_table_desc->near_modes; - stream->acache.s_same = stream->code_table_desc->same_modes; - stream->code_table = stream->code_table_func (); - - return xd3_alloc_cache (stream); - - fail: - - return ENOMEM; -} - -int -xd3_encode_init_full (xd3_stream *stream) -{ - return xd3_encode_init (stream, 1); -} - -int -xd3_encode_init_partial (xd3_stream *stream) -{ - return xd3_encode_init (stream, 0); -} - -/* Called after the ENC_POSTOUT state, this puts the output buffers - * back into separate lists and re-initializes some variables. (The - * output lists were spliced together during the ENC_FLUSH state.) */ -static void -xd3_encode_reset (xd3_stream *stream) -{ - int i; - xd3_output *olist; - - stream->avail_in = 0; - stream->small_reset = 1; - stream->i_slots_used = 0; - - if (stream->src != NULL) - { - stream->src->srcbase = 0; - stream->src->srclen = 0; - stream->srcwin_decided = 0; - stream->srcwin_decided_early = 0; - stream->match_minaddr = 0; - stream->match_maxaddr = 0; - stream->taroff = 0; - } - - /* Reset output chains. */ - olist = stream->enc_heads[0]; - - for (i = 0; i < ENC_SECTS; i += 1) - { - XD3_ASSERT (olist != NULL); - - stream->enc_heads[i] = olist; - stream->enc_tails[i] = olist; - olist = olist->next_page; - - stream->enc_heads[i]->next = 0; - stream->enc_heads[i]->next_page = NULL; - - stream->enc_tails[i]->next_page = NULL; - stream->enc_tails[i] = stream->enc_heads[i]; - } - - xd3_freelist_output (stream, olist); -} - -/* The main encoding routine. */ -int -xd3_encode_input (xd3_stream *stream) -{ - int ret, i; - - if (stream->dec_state != 0) - { - stream->msg = "encoder/decoder transition"; - return XD3_INTERNAL; - } - - switch (stream->enc_state) - { - case ENC_INIT: - /* Only reached on first time through: memory setup. */ - if ((ret = xd3_encode_init_full (stream))) { return ret; } - - stream->enc_state = ENC_INPUT; - - case ENC_INPUT: - - /* If there is no input yet, just return. This checks for - * next_in == NULL, not avail_in == 0 since zero bytes is a - * valid input. There is an assertion in xd3_avail_input() that - * next_in != NULL for this reason. By returning right away we - * avoid creating an input buffer before the caller has supplied - * its first data. It is possible for xd3_avail_input to be - * called both before and after the first call to - * xd3_encode_input(). */ - if (stream->next_in == NULL) - { - return XD3_INPUT; - } - - enc_flush: - /* See if we should buffer the input: either if there is already - * a leftover buffer, or if the input is short of winsize - * without flush. The label at this point is reached by a goto - * below, when there is leftover input after postout. */ - if ((stream->buf_leftover != NULL) || - (stream->buf_avail != 0) || - (stream->avail_in < stream->winsize && ! (stream->flags & XD3_FLUSH))) - { - if ((ret = xd3_encode_buffer_leftover (stream))) { return ret; } - } - - /* Initalize the address cache before each window. */ - xd3_init_cache (& stream->acache); - - stream->input_position = 0; - stream->min_match = MIN_MATCH; - stream->unencoded_offset = 0; - - stream->enc_state = ENC_SEARCH; - - IF_DEBUG2 (DP(RINT "[WINSTART:%"Q"u] input bytes %u offset %"Q"u\n", - stream->current_window, stream->avail_in, - stream->total_in)); - return XD3_WINSTART; - - case ENC_SEARCH: - IF_DEBUG2 (DP(RINT "[SEARCH] match_state %d avail_in %u %s\n", - stream->match_state, stream->avail_in, - stream->src ? "source" : "no source")); - - /* Reentrant matching. */ - if (stream->src != NULL) - { - switch (stream->match_state) - { - case MATCH_TARGET: - /* Try matching forward at the start of the target. - * This is entered the first time through, to check for - * a perfect match, and whenever there is a source match - * that extends to the end of the previous window. The - * match_srcpos field is initially zero and later set - * during xd3_source_extend_match. */ - - if (stream->avail_in > 0) - { - /* This call can't fail because the source window is - * unrestricted. */ - ret = xd3_source_match_setup (stream, stream->match_srcpos); - XD3_ASSERT (ret == 0); - stream->match_state = MATCH_FORWARD; - } - else - { - stream->match_state = MATCH_SEARCHING; - stream->match_fwd = 0; - } - XD3_ASSERT (stream->match_fwd == 0); - - case MATCH_FORWARD: - case MATCH_BACKWARD: - if (stream->avail_in != 0) - { - if ((ret = xd3_source_extend_match (stream)) != 0) - { - return ret; - } - - /* The search has to make forward progress here - * or else it can get stuck in a match-backward - * (getsrcblk) then match-forward (getsrcblk), - * find insufficient match length, then repeat - * exactly the same search. - */ - stream->input_position += stream->match_fwd; - } - - case MATCH_SEARCHING: - /* Continue string matching. (It's possible that the - * initial match continued through the entire input, in - * which case we're still in MATCH_FORWARD and should - * remain so for the next input window.) */ - break; - } - } - - /* String matching... */ - if (stream->avail_in != 0 && - (ret = stream->smatcher.string_match (stream))) - { - return ret; - } - - stream->enc_state = ENC_INSTR; - - case ENC_INSTR: - /* Note: Jump here to encode VCDIFF deltas w/o using this - * string-matching code. Merging code code enters here. */ - - /* Flush the instrution buffer, then possibly add one more - * instruction, then emit the header. */ - if ((ret = xd3_iopt_flush_instructions (stream, 1)) || - (ret = xd3_iopt_add_finalize (stream))) - { - return ret; - } - - stream->enc_state = ENC_FLUSH; - - case ENC_FLUSH: - /* Note: main_recode_func() bypasses string-matching by setting - * ENC_FLUSH. */ - if ((ret = xd3_emit_hdr (stream))) - { - return ret; - } - - /* Begin output. */ - stream->enc_current = HDR_HEAD (stream); - - /* Chain all the outputs together. After doing this, it looks - * as if there is only one section. The other enc_heads are set - * to NULL to avoid freeing them more than once. */ - for (i = 1; i < ENC_SECTS; i += 1) - { - stream->enc_tails[i-1]->next_page = stream->enc_heads[i]; - stream->enc_heads[i] = NULL; - } - - enc_output: - - stream->enc_state = ENC_POSTOUT; - stream->next_out = stream->enc_current->base; - stream->avail_out = stream->enc_current->next; - stream->total_out += (xoff_t) stream->avail_out; - - /* If there is any output in this buffer, return it, otherwise - * fall through to handle the next buffer or finish the window - * after all buffers have been output. */ - if (stream->avail_out > 0) - { - /* This is the only place xd3_encode returns XD3_OUTPUT */ - return XD3_OUTPUT; - } - - case ENC_POSTOUT: - - if (stream->avail_out != 0) - { - stream->msg = "missed call to consume output"; - return XD3_INTERNAL; - } - - /* Continue outputting one buffer at a time, until the next is NULL. */ - if ((stream->enc_current = stream->enc_current->next_page) != NULL) - { - goto enc_output; - } - - stream->total_in += (xoff_t) stream->avail_in; - stream->enc_state = ENC_POSTWIN; - - IF_DEBUG2 (DP(RINT "[WINFINISH:%"Q"u] in=%"Q"u\n", - stream->current_window, - stream->total_in)); - return XD3_WINFINISH; - - case ENC_POSTWIN: - - xd3_encode_reset (stream); - - stream->current_window += 1; - stream->enc_state = ENC_INPUT; - - /* If there is leftover input to flush, repeat. */ - if (stream->buf_leftover != NULL) - { - goto enc_flush; - } - - /* Ready for more input. */ - return XD3_INPUT; - - default: - stream->msg = "invalid state"; - return XD3_INTERNAL; - } -} -#endif /* XD3_ENCODER */ - -/***************************************************************** - Client convenience functions - ******************************************************************/ - -static int -xd3_process_stream (int is_encode, - xd3_stream *stream, - int (*func) (xd3_stream *), - int close_stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max) -{ - usize_t ipos = 0; - usize_t n = min(stream->winsize, input_size); - - (*output_size) = 0; - - stream->flags |= XD3_FLUSH; - - xd3_avail_input (stream, input + ipos, n); - ipos += n; - - for (;;) - { - int ret; - switch((ret = func (stream))) - { - case XD3_OUTPUT: { /* memcpy below */ break; } - case XD3_INPUT: { - n = min(stream->winsize, input_size - ipos); - if (n == 0) { - goto done; - } - xd3_avail_input (stream, input + ipos, n); - ipos += n; - continue; - } - case XD3_GOTHEADER: { /* ignore */ continue; } - case XD3_WINSTART: { /* ignore */ continue; } - case XD3_WINFINISH: { /* ignore */ continue; } - case XD3_GETSRCBLK: - { - stream->msg = "stream requires source input"; - return XD3_INTERNAL; - } - case 0: - { - /* xd3_encode_input/xd3_decode_input never return 0 */ - stream->msg = "invalid return: 0"; - return XD3_INTERNAL; - } - default: - return ret; - } - - if (*output_size + stream->avail_out > output_size_max) - { - stream->msg = "insufficient output space"; - return ENOSPC; - } - - memcpy (output + *output_size, stream->next_out, stream->avail_out); - - *output_size += stream->avail_out; - - xd3_consume_output (stream); - } - done: - return (close_stream == 0) ? 0 : xd3_close_stream (stream); -} - -static int -xd3_process_memory (int is_encode, - int (*func) (xd3_stream *), - int close_stream, - const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - xd3_stream stream; - xd3_config config; - xd3_source src; - int ret; - - memset (& stream, 0, sizeof (stream)); - memset (& config, 0, sizeof (config)); - - if (input == NULL || output == NULL) { - stream.msg = "invalid input/output buffer"; - ret = XD3_INTERNAL; - goto exit; - } - - config.flags = flags; - - if (is_encode) - { - config.srcwin_maxsz = source_size; - config.winsize = min(input_size, (usize_t) XD3_DEFAULT_WINSIZE); - config.iopt_size = min(input_size / 32, XD3_DEFAULT_IOPT_SIZE); - config.iopt_size = max(config.iopt_size, 128U); - config.sprevsz = xd3_pow2_roundup (config.winsize); - } - - if ((ret = xd3_config_stream (&stream, &config)) != 0) - { - goto exit; - } - - if (source != NULL) - { - memset (& src, 0, sizeof (src)); - - src.blksize = source_size; - src.onblk = source_size; - src.curblk = source; - src.curblkno = 0; - - if ((ret = xd3_set_source_and_size (&stream, &src, source_size)) != 0) - { - goto exit; - } - } - - if ((ret = xd3_process_stream (is_encode, - & stream, - func, 1, - input, input_size, - output, - output_size, - output_size_max)) != 0) - { - goto exit; - } - - exit: - if (ret != 0) - { - IF_DEBUG2 (DP(RINT "process_memory: %d: %s\n", ret, stream.msg)); - } - xd3_free_stream(&stream); - return ret; -} - -int -xd3_decode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max) -{ - return xd3_process_stream (0, stream, & xd3_decode_input, 1, - input, input_size, - output, output_size, output_size_max); -} - -int -xd3_decode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - return xd3_process_memory (0, & xd3_decode_input, 1, - input, input_size, - source, source_size, - output, output_size, output_size_max, - flags); -} - - -#if XD3_ENCODER -int -xd3_encode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max) -{ - return xd3_process_stream (1, stream, & xd3_encode_input, 1, - input, input_size, - output, output_size, output_size_max); -} - -int -xd3_encode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - return xd3_process_memory (1, & xd3_encode_input, 1, - input, input_size, - source, source_size, - output, output_size, output_size_max, - flags); -} -#endif - - -/************************************************************* - String matching helpers - *************************************************************/ - -#if XD3_ENCODER -/* Do the initial xd3_string_match() checksum table setup. - * Allocations are delayed until first use to avoid allocation - * sometimes (e.g., perfect matches, zero-length inputs). */ -static int -xd3_string_match_init (xd3_stream *stream) -{ - const int DO_SMALL = ! (stream->flags & XD3_NOCOMPRESS); - const int DO_LARGE = (stream->src != NULL); - - if (DO_LARGE && stream->large_table == NULL) - { - if ((stream->large_table = - (usize_t*) xd3_alloc0 (stream, stream->large_hash.size, sizeof (usize_t))) == NULL) - { - return ENOMEM; - } - } - - if (DO_SMALL) - { - /* Subsequent calls can return immediately after checking reset. */ - if (stream->small_table != NULL) - { - /* The target hash table is reinitialized once per window. */ - /* TODO: This would not have to be reinitialized if absolute - * offsets were being stored. */ - if (stream->small_reset) - { - stream->small_reset = 0; - memset (stream->small_table, 0, - sizeof (usize_t) * stream->small_hash.size); - } - - return 0; - } - - if ((stream->small_table = - (usize_t*) xd3_alloc0 (stream, - stream->small_hash.size, - sizeof (usize_t))) == NULL) - { - return ENOMEM; - } - - /* If there is a previous table needed. */ - if (stream->smatcher.small_lchain > 1 || - stream->smatcher.small_chain > 1) - { - if ((stream->small_prev = - (xd3_slist*) xd3_alloc (stream, - stream->sprevsz, - sizeof (xd3_slist))) == NULL) - { - return ENOMEM; - } - } - } - - return 0; -} - -#if XD3_USE_LARGEFILE64 -/* This function handles the 32/64bit ambiguity -- file positions are 64bit - * but the hash table for source-offsets is 32bit. */ -static xoff_t -xd3_source_cksum_offset(xd3_stream *stream, usize_t low) -{ - xoff_t scp = stream->srcwin_cksum_pos; - xoff_t s0 = scp >> 32; - - usize_t sr = (usize_t) scp; - - if (s0 == 0) { - return low; - } - - /* This should not be >= because srcwin_cksum_pos is the next - * position to index. */ - if (low > sr) { - return (--s0 << 32) | low; - } - - return (s0 << 32) | low; -} -#else -static xoff_t -xd3_source_cksum_offset(xd3_stream *stream, usize_t low) -{ - return (xoff_t) low; -} -#endif - -/* This function sets up the stream->src fields srcbase, srclen. The - * call is delayed until these values are needed to encode a copy - * address. At this point the decision has to be made. */ -static int -xd3_srcwin_setup (xd3_stream *stream) -{ - xd3_source *src = stream->src; - xoff_t length, x; - - /* Check the undecided state. */ - XD3_ASSERT (src->srclen == 0 && src->srcbase == 0); - - /* Avoid repeating this call. */ - stream->srcwin_decided = 1; - - /* If the stream is flushing, then the iopt buffer was able to - * contain the complete encoding. If no copies were issued no - * source window is actually needed. This prevents the VCDIFF - * header from including source base/len. xd3_emit_hdr checks for - * srclen == 0. */ - if (stream->enc_state == ENC_INSTR && stream->match_maxaddr == 0) - { - goto done; - } - - /* Check for overflow, srclen is usize_t - this can't happen unless - * XD3_DEFAULT_SRCBACK and related parameters are extreme - should - * use smaller windows. */ - length = stream->match_maxaddr - stream->match_minaddr; - - x = (xoff_t) USIZE_T_MAX; - if (length > x) - { - stream->msg = "source window length overflow (not 64bit)"; - return XD3_INTERNAL; - } - - /* If ENC_INSTR, then we know the exact source window to use because - * no more copies can be issued. */ - if (stream->enc_state == ENC_INSTR) - { - src->srcbase = stream->match_minaddr; - src->srclen = (usize_t) length; - XD3_ASSERT (src->srclen); - goto done; - } - - /* Otherwise, we have to make a guess. More copies may still be - * issued, but we have to decide the source window base and length - * now. */ - src->srcbase = stream->match_minaddr; - src->srclen = max ((usize_t) length, - stream->avail_in + (stream->avail_in >> 2)); - - /* OPT: If we know the source size, it might be possible to reduce - * srclen. */ - XD3_ASSERT (src->srclen); - done: - /* Set the taroff. This convenience variable is used even when - stream->src == NULL. */ - stream->taroff = src->srclen; - return 0; -} - -/* Sets the bounding region for a newly discovered source match, prior - * to calling xd3_source_extend_match(). This sets the match_maxfwd, - * match_maxback variables. Note: srcpos is an absolute position - * (xoff_t) but the match_maxfwd, match_maxback variables are usize_t. - * Returns 0 if the setup succeeds, or 1 if the source position lies - * outside an already-decided srcbase/srclen window. */ -static int -xd3_source_match_setup (xd3_stream *stream, xoff_t srcpos) -{ - xd3_source *src = stream->src; - usize_t greedy_or_not; - xoff_t frontier_pos; - - stream->match_maxback = 0; - stream->match_maxfwd = 0; - stream->match_back = 0; - stream->match_fwd = 0; - - /* This avoids a non-blocking endless loop caused by scanning - * backwards across a block boundary, only to find not enough - * matching bytes to beat the current min_match due to a better lazy - * target match: the re-entry to xd3_string_match() repeats the same - * long match because the input position hasn't changed. TODO: if - * ever duplicates are added to the source hash table, this logic - * won't suffice to avoid loops. See testing/regtest.cc's - * TestNonBlockingProgress test! */ - if (srcpos != 0 && srcpos == stream->match_last_srcpos) - { - IF_DEBUG2(DP(RINT "[match_setup] looping failure\n")); - goto bad; - } - - /* Implement srcwin_maxsz, which prevents the encoder from seeking - * back further than the LRU cache maintaining FIFO discipline, (to - * avoid seeking). */ - frontier_pos = - stream->src->frontier_blkno * stream->src->blksize; - IF_DEBUG1(DP(RINT "[match_setup] frontier_pos %"Q"u, srcpos %"Q"u, " - "srcwin_maxsz %u\n", - frontier_pos, srcpos, stream->srcwin_maxsz)); - if (srcpos < frontier_pos && - frontier_pos - srcpos > stream->srcwin_maxsz) { - IF_DEBUG1(DP(RINT "[match_setup] rejected due to srcwin_maxsz " - "distance eof=%"Q"u srcpos=%"Q"u maxsz=%u\n", - xd3_source_eof (stream->src), - srcpos, stream->srcwin_maxsz)); - goto bad; - } - - /* Going backwards, the 1.5-pass algorithm allows some - * already-matched input may be covered by a longer source match. - * The greedy algorithm does not allow this. */ - if (stream->flags & XD3_BEGREEDY) - { - /* The greedy algorithm allows backward matching to the last - matched position. */ - greedy_or_not = xd3_iopt_last_matched (stream); - } - else - { - /* The 1.5-pass algorithm allows backward matching to go back as - * far as the unencoded offset, which is updated as instructions - * pass out of the iopt buffer. If this (default) is chosen, it - * means xd3_iopt_erase may be called to eliminate instructions - * when a covering source match is found. */ - greedy_or_not = stream->unencoded_offset; - } - - /* Backward target match limit. */ - XD3_ASSERT (stream->input_position >= greedy_or_not); - stream->match_maxback = stream->input_position - greedy_or_not; - - /* Forward target match limit. */ - XD3_ASSERT (stream->avail_in > stream->input_position); - stream->match_maxfwd = stream->avail_in - stream->input_position; - - /* Now we take the source position into account. It depends whether - * the srclen/srcbase have been decided yet. */ - if (stream->srcwin_decided == 0) - { - /* Unrestricted case: the match can cover the entire source, - * 0--src->size. We compare the usize_t - * match_maxfwd/match_maxback against the xoff_t - * src->size/srcpos values and take the min. */ - if (srcpos < (xoff_t) stream->match_maxback) - { - stream->match_maxback = (usize_t) srcpos; - } - - if (stream->src->eof_known) - { - xoff_t srcavail = xd3_source_eof (stream->src) - srcpos; - - if (srcavail < (xoff_t) stream->match_maxfwd) - { - stream->match_maxfwd = (usize_t) srcavail; - } - } - - IF_DEBUG1(DP(RINT - "[match_setup] srcpos %"Q"u (tgtpos %"Q"u) " - "unrestricted maxback %u maxfwd %u\n", - srcpos, - stream->total_in + stream->input_position, - stream->match_maxback, - stream->match_maxfwd)); - goto good; - } - - /* Decided some source window. */ - XD3_ASSERT (src->srclen > 0); - - /* Restricted case: fail if the srcpos lies outside the source window */ - if ((srcpos < src->srcbase) || - (srcpos > (src->srcbase + (xoff_t) src->srclen))) - { - IF_DEBUG1(DP(RINT "[match_setup] restricted source window failure\n")); - goto bad; - } - else - { - usize_t srcavail; - - srcavail = (usize_t) (srcpos - src->srcbase); - if (srcavail < stream->match_maxback) - { - stream->match_maxback = srcavail; - } - - srcavail = (usize_t) (src->srcbase + (xoff_t) src->srclen - srcpos); - if (srcavail < stream->match_maxfwd) - { - stream->match_maxfwd = srcavail; - } - - IF_DEBUG1(DP(RINT - "[match_setup] srcpos %"Q"u (tgtpos %"Q"u) " - "restricted maxback %u maxfwd %u\n", - srcpos, - stream->total_in + stream->input_position, - stream->match_maxback, - stream->match_maxfwd)); - goto good; - } - - good: - stream->match_state = MATCH_BACKWARD; - stream->match_srcpos = srcpos; - stream->match_last_srcpos = srcpos; - return 0; - - bad: - stream->match_state = MATCH_SEARCHING; - return 1; -} - -static inline int -xd3_forward_match(const uint8_t *s1c, const uint8_t *s2c, int n) -{ - int i = 0; -#if UNALIGNED_OK - int nint = n / sizeof(int); - - if (nint >> 3) - { - int j = 0; - const int *s1 = (const int*)s1c; - const int *s2 = (const int*)s2c; - int nint_8 = nint - 8; - - while (i <= nint_8 && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++]) { } - - i = (i - 1) * sizeof(int); - } -#endif - - while (i < n && s1c[i] == s2c[i]) - { - i++; - } - return i; -} - -/* This function expands the source match backward and forward. It is - * reentrant, since xd3_getblk may return XD3_GETSRCBLK, so most - * variables are kept in xd3_stream. There are two callers of this - * function, the string_matching routine when a checksum match is - * discovered, and xd3_encode_input whenever a continuing (or initial) - * match is suspected. The two callers do different things with the - * input_position, thus this function leaves that variable untouched. - * If a match is taken the resulting stream->match_fwd is left - * non-zero. */ -static int -xd3_source_extend_match (xd3_stream *stream) -{ - int ret; - xd3_source *src = stream->src; - xoff_t matchoff; /* matchoff is the current right/left-boundary of - the source match being tested. */ - usize_t streamoff; /* streamoff is the current right/left-boundary - of the input match being tested. */ - xoff_t tryblk; /* tryblk, tryoff are the block, offset position - of matchoff */ - usize_t tryoff; - usize_t tryrem; /* tryrem is the number of matchable bytes */ - usize_t matched; - - IF_DEBUG2(DP(RINT "[extend match] srcpos %"Q"u\n", - stream->match_srcpos)); - - XD3_ASSERT (src != NULL); - - /* Does it make sense to compute backward match AFTER forward match? */ - if (stream->match_state == MATCH_BACKWARD) - { - /* Note: this code is practically duplicated below, substituting - * match_fwd/match_back and direction. TODO: Consolidate? */ - matchoff = stream->match_srcpos - stream->match_back; - streamoff = stream->input_position - stream->match_back; - xd3_blksize_div (matchoff, src, &tryblk, &tryoff); - - /* this loops backward over source blocks */ - while (stream->match_back < stream->match_maxback) - { - /* see if we're backing across a source block boundary */ - if (tryoff == 0) - { - tryoff = src->blksize; - tryblk -= 1; - } - - if ((ret = xd3_getblk (stream, tryblk))) - { - /* if search went too far back, continue forward. */ - if (ret == XD3_TOOFARBACK) - { - break; - } - - /* could be a XD3_GETSRCBLK failure. */ - return ret; - } - - tryrem = min (tryoff, stream->match_maxback - stream->match_back); - - IF_DEBUG2(DP(RINT "[maxback] maxback %u trysrc %"Q"u/%u tgt %u tryrem %u\n", - stream->match_maxback, tryblk, tryoff, streamoff, tryrem)); - - /* TODO: This code can be optimized similar to xd3_match_forward() */ - for (; tryrem != 0; tryrem -= 1, stream->match_back += 1) - { - if (src->curblk[tryoff-1] != stream->next_in[streamoff-1]) - { - goto doneback; - } - - tryoff -= 1; - streamoff -= 1; - } - } - - doneback: - stream->match_state = MATCH_FORWARD; - } - - XD3_ASSERT (stream->match_state == MATCH_FORWARD); - - matchoff = stream->match_srcpos + stream->match_fwd; - streamoff = stream->input_position + stream->match_fwd; - xd3_blksize_div (matchoff, src, & tryblk, & tryoff); - - /* Note: practically the same code as backwards case above: same comments */ - while (stream->match_fwd < stream->match_maxfwd) - { - if (tryoff == src->blksize) - { - tryoff = 0; - tryblk += 1; - } - - if ((ret = xd3_getblk (stream, tryblk))) - { - /* if search went too far back, continue forward. */ - if (ret == XD3_TOOFARBACK) - { - break; - } - - /* could be a XD3_GETSRCBLK failure. */ - return ret; - } - - tryrem = min(stream->match_maxfwd - stream->match_fwd, - src->onblk - tryoff); - - if (tryrem == 0) - { - /* Generally, this means we have a power-of-two size source - * and we just found the end-of-file, in this case it's an - * empty block. */ - XD3_ASSERT (src->onblk < src->blksize); - break; - } - - matched = xd3_forward_match(src->curblk + tryoff, - stream->next_in + streamoff, - tryrem); - tryoff += matched; - streamoff += matched; - stream->match_fwd += matched; - - if (tryrem != matched) - { - break; - } - } - - stream->match_state = MATCH_SEARCHING; - - /* If the match ends short of the last instruction end, we probably - * don't want it. There is the possibility that a copy ends short - * of the last copy but also goes further back, in which case we - * might want it. This code does not implement such: if so we would - * need more complicated xd3_iopt_erase logic. */ - if (stream->match_fwd < stream->min_match) - { - stream->match_fwd = 0; - } - else - { - usize_t total = stream->match_fwd + stream->match_back; - - /* Correct the variables to remove match_back from the equation. */ - usize_t target_position = stream->input_position - stream->match_back; - usize_t match_length = stream->match_back + stream->match_fwd; - xoff_t match_position = stream->match_srcpos - stream->match_back; - xoff_t match_end = stream->match_srcpos + stream->match_fwd; - - /* At this point we may have to erase any iopt-buffer - * instructions that are fully covered by a backward-extending - * copy. */ - if (stream->match_back > 0) - { - xd3_iopt_erase (stream, target_position, total); - } - - stream->match_back = 0; - - /* Update ranges. The first source match occurs with both - values set to 0. */ - if (stream->match_maxaddr == 0 || - match_position < stream->match_minaddr) - { - stream->match_minaddr = match_position; - } - - if (match_end > stream->match_maxaddr) - { - /* Note: per-window */ - stream->match_maxaddr = match_end; - } - - if (match_end > stream->maxsrcaddr) - { - /* Note: across windows */ - stream->maxsrcaddr = match_end; - } - - IF_DEBUG1 ({ - static int x = 0; - DP(RINT "[source match:%d] (%s) [ %u bytes ]\n", - x++, - stream->total_in + target_position, - stream->total_in + target_position + match_length, - match_position, - match_position + match_length, - (stream->total_in + target_position == match_position) ? "same" : "diff", - match_length); - }); - - if ((ret = xd3_found_match (stream, - /* decoder position */ target_position, - /* length */ match_length, - /* address */ match_position, - /* is_source */ 1))) - { - return ret; - } - - /* If the match ends with the available input: */ - if (target_position + match_length == stream->avail_in) - { - /* Setup continuing match for the next window. */ - stream->match_state = MATCH_TARGET; - stream->match_srcpos = match_end; - } - } - - return 0; -} - -/* Update the small hash. Values in the small_table are offset by - * HASH_CKOFFSET (1) to distinguish empty buckets from real offsets. */ -static void -xd3_scksum_insert (xd3_stream *stream, - usize_t inx, - usize_t scksum, - usize_t pos) -{ - /* If we are maintaining previous duplicates. */ - if (stream->small_prev) - { - usize_t last_pos = stream->small_table[inx]; - xd3_slist *pos_list = & stream->small_prev[pos & stream->sprevmask]; - - /* Note last_pos is offset by HASH_CKOFFSET. */ - pos_list->last_pos = last_pos; - } - - /* Enter the new position into the hash bucket. */ - stream->small_table[inx] = pos + HASH_CKOFFSET; -} - -#if XD3_DEBUG -static int -xd3_check_smatch (const uint8_t *ref0, const uint8_t *inp0, - const uint8_t *inp_max, usize_t cmp_len) -{ - usize_t i; - - for (i = 0; i < cmp_len; i += 1) - { - XD3_ASSERT (ref0[i] == inp0[i]); - } - - if (inp0 + cmp_len < inp_max) - { - XD3_ASSERT (inp0[i] != ref0[i]); - } - - return 1; -} -#endif /* XD3_DEBUG */ - -/* When the hash table indicates a possible small string match, it - * calls this routine to find the best match. The first matching - * position is taken from the small_table, HASH_CKOFFSET is subtracted - * to get the actual position. After checking that match, if previous - * linked lists are in use (because stream->smatcher.small_chain > 1), - * previous matches are tested searching for the longest match. If - * (stream->min_match > MIN_MATCH) then a lazy match is in effect. - */ -static usize_t -xd3_smatch (xd3_stream *stream, - usize_t base, - usize_t scksum, - usize_t *match_offset) -{ - usize_t cmp_len; - usize_t match_length = 0; - usize_t chain = (stream->min_match == MIN_MATCH ? - stream->smatcher.small_chain : - stream->smatcher.small_lchain); - const uint8_t *inp_max = stream->next_in + stream->avail_in; - const uint8_t *inp; - const uint8_t *ref; - - SMALL_HASH_DEBUG1 (stream, stream->next_in + stream->input_position); - - XD3_ASSERT (stream->min_match + stream->input_position <= stream->avail_in); - - base -= HASH_CKOFFSET; - - again: - - IF_DEBUG2 (DP(RINT "smatch at base=%u inp=%u cksum=%u\n", base, - stream->input_position, scksum)); - - /* For small matches, we can always go to the end-of-input because - * the matching position must be less than the input position. */ - XD3_ASSERT (base < stream->input_position); - - ref = stream->next_in + base; - inp = stream->next_in + stream->input_position; - - SMALL_HASH_DEBUG2 (stream, ref); - - /* Expand potential match forward. */ - while (inp < inp_max && *inp == *ref) - { - ++inp; - ++ref; - } - - cmp_len = (usize_t)(inp - (stream->next_in + stream->input_position)); - - /* Verify correctness */ - XD3_ASSERT (xd3_check_smatch (stream->next_in + base, - stream->next_in + stream->input_position, - inp_max, cmp_len)); - - /* Update longest match */ - if (cmp_len > match_length) - { - ( match_length) = cmp_len; - (*match_offset) = base; - - /* Stop if we match the entire input or have a long_enough match. */ - if (inp == inp_max || cmp_len >= stream->smatcher.long_enough) - { - goto done; - } - } - - /* If we have not reached the chain limit, see if there is another - previous position. */ - while (--chain != 0) - { - /* Calculate the previous offset. */ - usize_t prev_pos = stream->small_prev[base & stream->sprevmask].last_pos; - usize_t diff_pos; - - if (prev_pos == 0) - { - break; - } - - prev_pos -= HASH_CKOFFSET; - - if (prev_pos > base) - { - break; - } - - base = prev_pos; - - XD3_ASSERT (stream->input_position > base); - diff_pos = stream->input_position - base; - - /* Stop searching if we go beyond sprevsz, since those entries - * are for unrelated checksum entries. */ - if (diff_pos & ~stream->sprevmask) - { - break; - } - - goto again; - } - - done: - /* Crude efficiency test: if the match is very short and very far back, it's - * unlikely to help, but the exact calculation requires knowing the state of - * the address cache and adjacent instructions, which we can't do here. - * Rather than encode a probably inefficient copy here and check it later - * (which complicates the code a lot), do this: - */ - if (match_length == 4 && stream->input_position - (*match_offset) >= 1<<14) - { - /* It probably takes >2 bytes to encode an address >= 2^14 from here */ - return 0; - } - if (match_length == 5 && stream->input_position - (*match_offset) >= 1<<21) - { - /* It probably takes >3 bytes to encode an address >= 2^21 from here */ - return 0; - } - - /* It's unlikely that a window is large enough for the (match_length == 6 && - * address >= 2^28) check */ - return match_length; -} - -#if XD3_DEBUG -static void -xd3_verify_small_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum) -{ - uint32_t state; - uint32_t cksum = xd3_scksum (&state, inp, stream->smatcher.small_look); - - XD3_ASSERT (cksum == x_cksum); -} - -static void -xd3_verify_large_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum) -{ - uint32_t cksum = xd3_lcksum (inp, stream->smatcher.large_look); - XD3_ASSERT (cksum == x_cksum); -} -static void -xd3_verify_run_state (xd3_stream *stream, - const uint8_t *inp, - usize_t x_run_l, - uint8_t *x_run_c) -{ - usize_t slook = stream->smatcher.small_look; - uint8_t run_c; - usize_t run_l = xd3_comprun (inp, slook, &run_c); - - XD3_ASSERT (run_l == 0 || run_c == *x_run_c); - XD3_ASSERT (x_run_l > slook || run_l == x_run_l); -} -#endif /* XD3_DEBUG */ - -/* This function computes more source checksums to advance the window. - * Called at every entrance to the string-match loop and each time - * stream->input_position reaches the value returned as - * *next_move_point. NB: this is one of the most expensive functions - * in this code and also the most critical for good compression. - * TODO: optimize the inner loop - */ -static int -xd3_srcwin_move_point (xd3_stream *stream, usize_t *next_move_point) -{ - xoff_t logical_input_cksum_pos; - xoff_t source_size; - - if (stream->src->eof_known) - { - source_size = xd3_source_eof (stream->src); - XD3_ASSERT(stream->srcwin_cksum_pos <= source_size); - - if (stream->srcwin_cksum_pos == source_size) - { - *next_move_point = USIZE_T_MAX; - return 0; - } - } - - /* Begin by advancing at twice the input rate, up to half the - * maximum window size. */ - logical_input_cksum_pos = min((stream->total_in + stream->input_position) * 2, - (stream->total_in + stream->input_position) + - (stream->srcwin_maxsz / 2)); - - /* If srcwin_cksum_pos is already greater, wait until the difference - * is met. */ - if (stream->srcwin_cksum_pos > logical_input_cksum_pos) - { - *next_move_point = stream->input_position + - (usize_t)(stream->srcwin_cksum_pos - logical_input_cksum_pos); - return 0; - } - - /* A long match may have extended past srcwin_cksum_pos. Don't - * start checksumming already-matched source data. */ - if (stream->maxsrcaddr > stream->srcwin_cksum_pos) - { - stream->srcwin_cksum_pos = stream->maxsrcaddr; - } - - if (logical_input_cksum_pos < stream->srcwin_cksum_pos) - { - logical_input_cksum_pos = stream->srcwin_cksum_pos; - } - - /* Advance at least one source block. With the command-line - * defaults this means: - * - * if (src->size <= srcwin_maxsz), index the entire source at once - * using the position of the first non-match. This is good for - * small inputs, especially when the content may have moved anywhere - * in the file (e.g., tar files). - * - * if (src->size > srcwin_maxsz), index at least one block (which - * the command-line sets to 1/32 of srcwin_maxsz) ahead of the - * logical position. This is good for different reasons: when a - * long match spanning several source blocks is encountered, this - * avoids computing checksums for those blocks. If the data can - * move anywhere, this is bad. - */ - logical_input_cksum_pos += stream->src->blksize; - - while (stream->srcwin_cksum_pos < logical_input_cksum_pos && - (!stream->src->eof_known || - stream->srcwin_cksum_pos < xd3_source_eof (stream->src))) - { - xoff_t blkno; - xoff_t blkbaseoffset; - usize_t blkrem; - ssize_t oldpos; /* Using ssize_t because of a */ - ssize_t blkpos; /* do { blkpos-- } - while (blkpos >= oldpos); */ - int ret; - xd3_blksize_div (stream->srcwin_cksum_pos, - stream->src, &blkno, &blkrem); - oldpos = blkrem; - - if ((ret = xd3_getblk (stream, blkno))) - { - /* TOOFARBACK should never occur here, since we read forward. */ - if (ret == XD3_TOOFARBACK) - { - ret = XD3_INTERNAL; - } - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] async getblk return for %"Q"u\n", - blkno)); - return ret; - } - - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] T=%"Q"u{%"Q"u} S=%"Q"u EOF=%"Q"u %s\n", - stream->total_in + stream->input_position, - logical_input_cksum_pos, - stream->srcwin_cksum_pos, - xd3_source_eof (stream->src), - stream->src->eof_known ? "known" : "unknown")); - - blkpos = xd3_bytes_on_srcblk (stream->src, blkno); - - if (blkpos < (ssize_t) stream->smatcher.large_look) - { - stream->srcwin_cksum_pos = (blkno + 1) * stream->src->blksize; - IF_DEBUG1 (DP(RINT "[srcwin_move_point] continue (end-of-block)\n")); - continue; - } - - /* This inserts checksums for the entire block, in reverse, - * starting from the end of the block. This logic does not test - * stream->srcwin_cksum_pos because it always advances it to the - * start of the next block. - * - * oldpos is the srcwin_cksum_pos within this block. blkpos is - * the number of bytes available. Each iteration inspects - * large_look bytes then steps back large_step bytes. The - * if-stmt above ensures at least one large_look of data. */ - blkpos -= stream->smatcher.large_look; - blkbaseoffset = stream->src->blksize * blkno; - - do - { - uint32_t cksum = xd3_lcksum (stream->src->curblk + blkpos, - stream->smatcher.large_look); - usize_t hval = xd3_checksum_hash (& stream->large_hash, cksum); - - stream->large_table[hval] = - (usize_t) (blkbaseoffset + - (xoff_t)(blkpos + HASH_CKOFFSET)); - - IF_DEBUG (stream->large_ckcnt += 1); - - blkpos -= stream->smatcher.large_step; - } - while (blkpos >= oldpos); - - stream->srcwin_cksum_pos = (blkno + 1) * stream->src->blksize; - } - - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] exited loop T=%"Q"u{%"Q"u} " - "S=%"Q"u EOF=%"Q"u %s\n", - stream->total_in + stream->input_position, - logical_input_cksum_pos, - stream->srcwin_cksum_pos, - xd3_source_eof (stream->src), - stream->src->eof_known ? "known" : "unknown")); - - if (stream->src->eof_known) - { - source_size = xd3_source_eof (stream->src); - - if (stream->srcwin_cksum_pos >= source_size) - { - /* This invariant is needed for xd3_source_cksum_offset() */ - stream->srcwin_cksum_pos = source_size; - *next_move_point = USIZE_T_MAX; - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] finished with source input\n")); - return 0; - } - } - - /* How long until this function should be called again. */ - XD3_ASSERT(stream->srcwin_cksum_pos >= logical_input_cksum_pos); - *next_move_point = stream->input_position + 1 + - (usize_t)(stream->srcwin_cksum_pos - logical_input_cksum_pos); - return 0; -} - -#endif /* XD3_ENCODER */ - -/******************************************************************** - TEMPLATE pass - *********************************************************************/ - -#endif /* __XDELTA3_C_INLINE_PASS__ */ -#ifdef __XDELTA3_C_TEMPLATE_PASS__ - -#if XD3_ENCODER - -/******************************************************************** - Templates - *******************************************************************/ - -/* Template macros */ -#define XD3_TEMPLATE(x) XD3_TEMPLATE2(x,TEMPLATE) -#define XD3_TEMPLATE2(x,n) XD3_TEMPLATE3(x,n) -#define XD3_TEMPLATE3(x,n) x ## n -#define XD3_STRINGIFY(x) XD3_STRINGIFY2(x) -#define XD3_STRINGIFY2(x) #x - -static int XD3_TEMPLATE(xd3_string_match_) (xd3_stream *stream); - -static const xd3_smatcher XD3_TEMPLATE(__smatcher_) = -{ - XD3_STRINGIFY(TEMPLATE), - XD3_TEMPLATE(xd3_string_match_), -#if SOFTCFG == 1 - 0, 0, 0, 0, 0, 0, 0 -#else - LLOOK, LSTEP, SLOOK, SCHAIN, SLCHAIN, MAXLAZY, LONGENOUGH -#endif -}; - -static int -XD3_TEMPLATE(xd3_string_match_) (xd3_stream *stream) -{ - const int DO_SMALL = ! (stream->flags & XD3_NOCOMPRESS); - const int DO_LARGE = (stream->src != NULL); - const int DO_RUN = (1); - - const uint8_t *inp; - uint32_t scksum = 0; - uint32_t scksum_state = 0; - uint32_t lcksum = 0; - usize_t sinx; - usize_t linx; - uint8_t run_c; - usize_t run_l; - int ret; - usize_t match_length; - usize_t match_offset = 0; - usize_t next_move_point; - - /* If there will be no compression due to settings or short input, - * skip it entirely. */ - if (! (DO_SMALL || DO_LARGE || DO_RUN) || - stream->input_position + SLOOK > stream->avail_in) { goto loopnomore; } - - if ((ret = xd3_string_match_init (stream))) { return ret; } - - /* The restartloop label is reached when the incremental loop state - * needs to be reset. */ - restartloop: - - /* If there is not enough input remaining for any kind of match, - skip it. */ - if (stream->input_position + SLOOK > stream->avail_in) { goto loopnomore; } - - /* Now reset the incremental loop state: */ - - /* The min_match variable is updated to avoid matching the same lazy - * match over and over again. For example, if you find a (small) - * match of length 9 at one position, you will likely find a match - * of length 8 at the next position. */ - if (xd3_iopt_last_matched (stream) > stream->input_position) - { - stream->min_match = max(MIN_MATCH, - 1 + xd3_iopt_last_matched(stream) - - stream->input_position); - } - else - { - stream->min_match = MIN_MATCH; - } - - /* The current input byte. */ - inp = stream->next_in + stream->input_position; - - /* Small match state. */ - if (DO_SMALL) - { - scksum = xd3_scksum (&scksum_state, inp, SLOOK); - } - - /* Run state. */ - if (DO_RUN) - { - run_l = xd3_comprun (inp, SLOOK, & run_c); - } - - /* Large match state. We continue the loop even after not enough - * bytes for LLOOK remain, so always check stream->input_position in - * DO_LARGE code. */ - if (DO_LARGE && (stream->input_position + LLOOK <= stream->avail_in)) - { - /* Source window: next_move_point is the point that - * stream->input_position must reach before computing more - * source checksum. */ - if ((ret = xd3_srcwin_move_point (stream, & next_move_point))) - { - return ret; - } - - lcksum = xd3_lcksum (inp, LLOOK); - } - - /* TRYLAZYLEN: True if a certain length match should be followed by - * lazy search. This checks that LEN is shorter than MAXLAZY and - * that there is enough leftover data to consider lazy matching. - * "Enough" is set to 2 since the next match will start at the next - * offset, it must match two extra characters. */ -#define TRYLAZYLEN(LEN,POS,MAX) ((MAXLAZY) > 0 && (LEN) < (MAXLAZY) \ - && (POS) + (LEN) <= (MAX) - 2) - - /* HANDLELAZY: This statement is called each time an instruciton is - * emitted (three cases). If the instruction is large enough, the - * loop is restarted, otherwise lazy matching may ensue. */ -#define HANDLELAZY(mlen) \ - if (TRYLAZYLEN ((mlen), (stream->input_position), (stream->avail_in))) \ - { stream->min_match = (mlen) + LEAST_MATCH_INCR; goto updateone; } \ - else \ - { stream->input_position += (mlen); goto restartloop; } - - /* Now loop over one input byte at a time until a match is found... */ - for (;; inp += 1, stream->input_position += 1) - { - /* Now we try three kinds of string match in order of expense: - * run, large match, small match. */ - - /* Expand the start of a RUN. The test for (run_l == SLOOK) - * avoids repeating this check when we pass through a run area - * performing lazy matching. The run is only expanded once when - * the min_match is first reached. If lazy matching is - * performed, the run_l variable will remain inconsistent until - * the first non-running input character is reached, at which - * time the run_l may then again grow to SLOOK. */ - if (DO_RUN && run_l == SLOOK) - { - usize_t max_len = stream->avail_in - stream->input_position; - - IF_DEBUG (xd3_verify_run_state (stream, inp, run_l, &run_c)); - - while (run_l < max_len && inp[run_l] == run_c) { run_l += 1; } - - /* Output a RUN instruction. */ - if (run_l >= stream->min_match && run_l >= MIN_RUN) - { - if ((ret = xd3_emit_run (stream, stream->input_position, - run_l, &run_c))) { return ret; } - - HANDLELAZY (run_l); - } - } - - /* If there is enough input remaining. */ - if (DO_LARGE && (stream->input_position + LLOOK <= stream->avail_in)) - { - if ((stream->input_position >= next_move_point) && - (ret = xd3_srcwin_move_point (stream, & next_move_point))) - { - return ret; - } - - linx = xd3_checksum_hash (& stream->large_hash, lcksum); - - IF_DEBUG (xd3_verify_large_state (stream, inp, lcksum)); - - if (stream->large_table[linx] != 0) - { - /* the match_setup will fail if the source window has - * been decided and the match lies outside it. - * OPT: Consider forcing a window at this point to - * permit a new source window. */ - xoff_t adj_offset = - xd3_source_cksum_offset(stream, - stream->large_table[linx] - - HASH_CKOFFSET); - if (xd3_source_match_setup (stream, adj_offset) == 0) - { - if ((ret = xd3_source_extend_match (stream))) - { - return ret; - } - - /* Update stream position. match_fwd is zero if no - * match. */ - if (stream->match_fwd > 0) - { - HANDLELAZY (stream->match_fwd); - } - } - } - } - - /* Small matches. */ - if (DO_SMALL) - { - sinx = xd3_checksum_hash (& stream->small_hash, scksum); - - /* Verify incremental state in debugging mode. */ - IF_DEBUG (xd3_verify_small_state (stream, inp, scksum)); - - /* Search for the longest match */ - if (stream->small_table[sinx] != 0) - { - match_length = xd3_smatch (stream, - stream->small_table[sinx], - scksum, - & match_offset); - } - else - { - match_length = 0; - } - - /* Insert a hash for this string. */ - xd3_scksum_insert (stream, sinx, scksum, stream->input_position); - - /* Maybe output a COPY instruction */ - if (match_length >= stream->min_match) - { - IF_DEBUG2 ({ - static int x = 0; - DP(RINT "[target match:%d] " - "(-%d) [ %u bytes ]\n", - x++, - stream->input_position, - stream->input_position + match_length, - match_offset, - match_offset + match_length, - stream->input_position - match_offset, - match_length); - }); - - if ((ret = xd3_found_match (stream, - /* decoder position */ - stream->input_position, - /* length */ match_length, - /* address */ (xoff_t) match_offset, - /* is_source */ 0))) - { - return ret; - } - - /* Copy instruction. */ - HANDLELAZY (match_length); - } - } - - /* The logic above prevents excess work during lazy matching by - * increasing min_match to avoid smaller matches. Each time we - * advance stream->input_position by one, the minimum match - * shortens as well. */ - if (stream->min_match > MIN_MATCH) - { - stream->min_match -= 1; - } - - updateone: - - /* See if there are no more incremental cksums to compute. */ - if (stream->input_position + SLOOK == stream->avail_in) - { - goto loopnomore; - } - - /* Compute next RUN, CKSUM */ - if (DO_RUN) - { - NEXTRUN (inp[SLOOK]); - } - - if (DO_SMALL) - { - scksum = xd3_small_cksum_update (&scksum_state, inp, SLOOK); - } - - if (DO_LARGE && (stream->input_position + LLOOK < stream->avail_in)) - { - lcksum = xd3_large_cksum_update (lcksum, inp, LLOOK); - } - } - - loopnomore: - return 0; -} - -#endif /* XD3_ENCODER */ -#endif /* __XDELTA3_C_TEMPLATE_PASS__ */ diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/main.m b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/main.m deleted file mode 100644 index 4bd53ea..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/main.m +++ /dev/null @@ -1,18 +0,0 @@ -// -// main.m -// xdelta3-ios-test -// -// Created by Joshua MacDonald on 6/16/12. -// Copyright (c) 2011, 2012 Joshua MacDonald. All rights reserved. -// - -#import - -#import "Xd3iOSAppDelegate.h" - -int main(int argc, char *argv[]) -{ - @autoreleasepool { - return UIApplicationMain(argc, argv, nil, NSStringFromClass([Xd3iOSAppDelegate class])); - } -} diff --git a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/xdelta3-ios-test-Info.plist b/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/xdelta3-ios-test-Info.plist deleted file mode 100644 index d0e8a58..0000000 --- a/extern/xdelta3/examples/iOS/xdelta3-ios-test/xdelta3-ios-test/xdelta3-ios-test-Info.plist +++ /dev/null @@ -1,52 +0,0 @@ - - - - - CFBundleDevelopmentRegion - en - CFBundleDisplayName - ${PRODUCT_NAME} - CFBundleExecutable - ${EXECUTABLE_NAME} - CFBundleIconFiles - - CFBundleIdentifier - Joshua-MacDonald.${PRODUCT_NAME:rfc1034identifier} - CFBundleInfoDictionaryVersion - 6.0 - CFBundleName - ${PRODUCT_NAME} - CFBundlePackageType - APPL - CFBundleShortVersionString - 1.0 - CFBundleSignature - ???? - CFBundleVersion - 1.0 - LSRequiresIPhoneOS - - UIMainStoryboardFile - MainStoryboard_iPhone - UIMainStoryboardFile~ipad - MainStoryboard_iPad - UIRequiredDeviceCapabilities - - armv7 - - UISupportedInterfaceOrientations - - UIInterfaceOrientationPortrait - UIInterfaceOrientationLandscapeLeft - UIInterfaceOrientationLandscapeRight - UIInterfaceOrientationPortraitUpsideDown - - UISupportedInterfaceOrientations~ipad - - UIInterfaceOrientationPortrait - UIInterfaceOrientationPortraitUpsideDown - UIInterfaceOrientationLandscapeLeft - UIInterfaceOrientationLandscapeRight - - - diff --git a/extern/xdelta3/examples/small_page_test.c b/extern/xdelta3/examples/small_page_test.c deleted file mode 100755 index e4b5a1b..0000000 --- a/extern/xdelta3/examples/small_page_test.c +++ /dev/null @@ -1,201 +0,0 @@ -/* Copyright (C) 2007 Josh MacDonald */ - -#include - -#define PAGE_SIZE 4096 - -#define SPACE_MAX 131072 // how much memory per process -#define OUTPUT_MAX 1024 // max size for output -#define XD3_ALLOCSIZE 256 // internal size for various buffers -#define IOPT_SIZE 128 // instruction buffer - -// SPACE_MAX of 32K is sufficient for most inputs with XD3_COMPLEVEL_1 -// XD3_COMPLEVEL_9 requires about 4x more space than XD3_COMPLEVEL_1 - -#include "xdelta3.h" -#include "xdelta3.c" - -typedef struct _context { - uint8_t *buffer; - int allocated; -} context_t; - -static int max_allocated = 0; - -void* -process_alloc (void* opaque, usize_t items, usize_t size) -{ - context_t *ctx = (context_t*) opaque; - usize_t t = items * size; - void *ret; - - if (ctx->allocated + t > SPACE_MAX) - { - return NULL; - } - - ret = ctx->buffer + ctx->allocated; - ctx->allocated += t; - return ret; -} - -void -process_free (void* opaque, void *ptr) -{ -} - -int -process_page (int is_encode, - int (*func) (xd3_stream *), - const uint8_t *input, - usize_t input_size, - const uint8_t *source, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - - /* On my x86 this is 1072 of objects on the stack */ - xd3_stream stream; - xd3_config config; - xd3_source src; - context_t *ctx = calloc(SPACE_MAX, 1); - int ret; - - memset (&config, 0, sizeof(config)); - - if (ctx == NULL) - { - printf("calloc failed\n"); - return -1; - } - - ctx->buffer = (uint8_t*)ctx; - ctx->allocated = sizeof(*ctx); - - config.flags = flags; - config.winsize = PAGE_SIZE; - config.sprevsz = PAGE_SIZE; - config.srcwin_maxsz = PAGE_SIZE; - config.iopt_size = IOPT_SIZE; - config.alloc = &process_alloc; - config.freef = &process_free; - config.opaque = (void*) ctx; - - src.blksize = PAGE_SIZE; - src.onblk = PAGE_SIZE; - src.curblk = source; - src.curblkno = 0; - - if ((ret = xd3_config_stream (&stream, &config)) != 0 || - (ret = xd3_set_source_and_size (&stream, &src, PAGE_SIZE)) != 0 || - (ret = xd3_process_stream (is_encode, - &stream, - func, 1, - input, input_size, - output, output_size, - output_size_max)) != 0) - { - if (stream.msg != NULL) - { - fprintf(stderr, "stream message: %s\n", stream.msg); - } - } - - xd3_free_stream (&stream); - if (max_allocated < ctx->allocated) - { - max_allocated = ctx->allocated; - fprintf(stderr, "max allocated %d\n", max_allocated); - } - - free(ctx); - return ret; -} - -int test(int stride, int encode_flags) -{ - uint8_t frompg[PAGE_SIZE]; - uint8_t topg[PAGE_SIZE]; - uint8_t output[OUTPUT_MAX]; - uint8_t reout[PAGE_SIZE]; - usize_t output_size; - usize_t re_size; - int i, j, ret; - - for (i = 0; i < PAGE_SIZE; i++) - { - topg[i] = frompg[i] = (rand() >> 3 ^ rand() >> 6 ^ rand() >> 9); - } - - // change 1 byte every stride - if (stride > 0) - { - for (j = stride; j <= PAGE_SIZE; j += stride) - { - topg[j - 1] ^= 0xff; - } - } - - if ((ret = process_page (1, xd3_encode_input, - topg, PAGE_SIZE, - frompg, output, - &output_size, OUTPUT_MAX, - encode_flags)) != 0) - { - fprintf (stderr, "encode failed: stride %u flags 0x%x\n", - stride, encode_flags); - return ret; - } - - if ((ret = process_page (0, xd3_decode_input, - output, output_size, - frompg, reout, - &re_size, PAGE_SIZE, - 0)) != 0) - { - fprintf (stderr, "decode failed: stride %u output_size %u flags 0x%x\n", - stride, output_size, encode_flags); - return ret; - } - - if (output_size > OUTPUT_MAX || re_size != PAGE_SIZE) - { - fprintf (stderr, "internal error: %u != %u\n", output_size, re_size); - return -1; - } - - for (i = 0; i < PAGE_SIZE; i++) - { - if (reout[i] != topg[i]) - { - fprintf (stderr, "encode-decode error: position %d\n", i); - return -1; - } - } - - fprintf(stderr, "stride %d flags 0x%x size %u ", - stride, encode_flags, output_size); - fprintf(stderr, "%s\n", (ret == 0) ? "OK" : "FAIL"); - - return 0; -} - -int main() -{ - int stride; - int level; - - for (level = 1; level < 10; level = (level == 1 ? 3 : level + 3)) - { - int lflag = level << XD3_COMPLEVEL_SHIFT; - - for (stride = 2; stride <= PAGE_SIZE; stride += 2) - { - test(stride, lflag); - test(stride, lflag | XD3_SEC_DJW); - } - } - - return 0; -} diff --git a/extern/xdelta3/examples/speed_test.c b/extern/xdelta3/examples/speed_test.c deleted file mode 100644 index d9ce5aa..0000000 --- a/extern/xdelta3/examples/speed_test.c +++ /dev/null @@ -1,73 +0,0 @@ -/* Copyright (C) 2007 Josh MacDonald */ - -#include "test.h" - -usize_t bench_speed(const uint8_t *from_buf, const size_t from_len, - const uint8_t *to_buf, const size_t to_len, - uint8_t *delta_buf, const size_t delta_alloc, - int flags) { - usize_t delta_size; - int ret = xd3_encode_memory(to_buf, to_len, from_buf, from_len, - delta_buf, &delta_size, delta_alloc, flags); - if (ret != 0) { - fprintf(stderr, "encode failure: %d: %s\n", ret, xd3_strerror(ret)); - abort(); - } - return delta_size; -} - -int main(int argc, char **argv) { - int repeat, level; - char *from, *to; - uint8_t *from_buf = NULL, *to_buf = NULL, *delta_buf = NULL; - size_t from_len = 0, to_len, delta_alloc, delta_size = 0; - long start, finish; - int i, ret; - int flags; - - if (argc != 5) { - fprintf(stderr, "usage: speed_test LEVEL COUNT FROM TO\n"); - return 1; - } - - level = atoi(argv[1]); - repeat = atoi(argv[2]); - from = argv[3]; - to = argv[4]; - flags = (level << XD3_COMPLEVEL_SHIFT) & XD3_COMPLEVEL_MASK; - - if ((strcmp(from, "null") != 0 && - (ret = read_whole_file(from, &from_buf, &from_len))) || - (ret = read_whole_file(to, &to_buf, &to_len))) { - fprintf(stderr, "read_whole_file error\n"); - goto exit; - } - - delta_alloc = to_len * 11 / 10; - delta_buf = main_malloc(delta_alloc); - - start = get_millisecs_now(); - - for (i = 0; i < repeat; ++i) { - delta_size = bench_speed(from_buf, from_len, - to_buf, to_len, delta_buf, delta_alloc, flags); - } - - finish = get_millisecs_now(); - - fprintf(stderr, - "STAT: encode %3.2f ms from %s to %s repeat %d %zdbit delta %zd\n", - (double)(finish - start) / repeat, from, to, repeat, sizeof (xoff_t) * 8, delta_size); - - ret = 0; - - if (0) { - exit: - ret = 1; - } - - main_free(to_buf); - main_free(from_buf); - main_free(delta_buf); - return ret; -} diff --git a/extern/xdelta3/examples/test.h b/extern/xdelta3/examples/test.h deleted file mode 100644 index f31ae49..0000000 --- a/extern/xdelta3/examples/test.h +++ /dev/null @@ -1,42 +0,0 @@ -/* Copyright (C) 2007 Josh MacDonald */ - -#define NOT_MAIN 1 - -#include "xdelta3.h" -#include "xdelta3.c" - -static int read_whole_file(const char *name, - uint8_t **buf_ptr, - size_t *buf_len) { - main_file file; - int ret; - xoff_t len; - usize_t nread; - main_file_init(&file); - file.filename = name; - ret = main_file_open(&file, name, XO_READ); - if (ret != 0) { - fprintf(stderr, "open failed\n"); - goto exit; - } - ret = main_file_stat(&file, &len); - if (ret != 0) { - fprintf(stderr, "stat failed\n"); - goto exit; - } - - (*buf_len) = (size_t)len; - (*buf_ptr) = (uint8_t*) main_malloc(*buf_len); - ret = main_file_read(&file, *buf_ptr, *buf_len, &nread, - "read failed"); - if (ret == 0 && *buf_len == nread) { - ret = 0; - } else { - fprintf(stderr, "invalid read\n"); - ret = XD3_INTERNAL; - } - exit: - main_file_cleanup(&file); - return ret; -} - diff --git a/extern/xdelta3/install-sh b/extern/xdelta3/install-sh deleted file mode 100755 index 0b0fdcb..0000000 --- a/extern/xdelta3/install-sh +++ /dev/null @@ -1,501 +0,0 @@ -#!/bin/sh -# install - install a program, script, or datafile - -scriptversion=2013-12-25.23; # UTC - -# This originates from X11R5 (mit/util/scripts/install.sh), which was -# later released in X11R6 (xc/config/util/install.sh) with the -# following copyright and license. -# -# Copyright (C) 1994 X Consortium -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to -# deal in the Software without restriction, including without limitation the -# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or -# sell copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- -# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -# -# Except as contained in this notice, the name of the X Consortium shall not -# be used in advertising or otherwise to promote the sale, use or other deal- -# ings in this Software without prior written authorization from the X Consor- -# tium. -# -# -# FSF changes to this file are in the public domain. -# -# Calling this script install-sh is preferred over install.sh, to prevent -# 'make' implicit rules from creating a file called install from it -# when there is no Makefile. -# -# This script is compatible with the BSD install script, but was written -# from scratch. - -tab=' ' -nl=' -' -IFS=" $tab$nl" - -# Set DOITPROG to "echo" to test this script. - -doit=${DOITPROG-} -doit_exec=${doit:-exec} - -# Put in absolute file names if you don't have them in your path; -# or use environment vars. - -chgrpprog=${CHGRPPROG-chgrp} -chmodprog=${CHMODPROG-chmod} -chownprog=${CHOWNPROG-chown} -cmpprog=${CMPPROG-cmp} -cpprog=${CPPROG-cp} -mkdirprog=${MKDIRPROG-mkdir} -mvprog=${MVPROG-mv} -rmprog=${RMPROG-rm} -stripprog=${STRIPPROG-strip} - -posix_mkdir= - -# Desired mode of installed file. -mode=0755 - -chgrpcmd= -chmodcmd=$chmodprog -chowncmd= -mvcmd=$mvprog -rmcmd="$rmprog -f" -stripcmd= - -src= -dst= -dir_arg= -dst_arg= - -copy_on_change=false -is_target_a_directory=possibly - -usage="\ -Usage: $0 [OPTION]... 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In this case, the final cleanup might fail but the new - # file should still install successfully. - { - test ! -f "$dst" || - $doit $rmcmd -f "$dst" 2>/dev/null || - { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && - { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } - } || - { echo "$0: cannot unlink or rename $dst" >&2 - (exit 1); exit 1 - } - } && - - # Now rename the file to the real destination. - $doit $mvcmd "$dsttmp" "$dst" - } - fi || exit 1 - - trap '' 0 - fi -done - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/extern/xdelta3/ltmain.sh b/extern/xdelta3/ltmain.sh deleted file mode 100644 index 0f0a2da..0000000 --- a/extern/xdelta3/ltmain.sh +++ /dev/null @@ -1,11147 +0,0 @@ -#! /bin/sh -## DO NOT EDIT - This file generated from ./build-aux/ltmain.in -## by inline-source v2014-01-03.01 - -# libtool (GNU libtool) 2.4.6 -# Provide generalized library-building support services. -# Written by Gordon Matzigkeit , 1996 - -# Copyright (C) 1996-2015 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# GNU Libtool is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# As a special exception to the GNU General Public License, -# if you distribute this file as part of a program or library that -# is built using GNU Libtool, you may include this file under the -# same distribution terms that you use for the rest of that program. -# -# GNU Libtool is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - - -PROGRAM=libtool -PACKAGE=libtool -VERSION=2.4.6 -package_revision=2.4.6 - - -## ------ ## -## Usage. ## -## ------ ## - -# Run './libtool --help' for help with using this script from the -# command line. - - -## ------------------------------- ## -## User overridable command paths. ## -## ------------------------------- ## - -# After configure completes, it has a better idea of some of the -# shell tools we need than the defaults used by the functions shared -# with bootstrap, so set those here where they can still be over- -# ridden by the user, but otherwise take precedence. - -: ${AUTOCONF="autoconf"} -: ${AUTOMAKE="automake"} - - -## -------------------------- ## -## Source external libraries. ## -## -------------------------- ## - -# Much of our low-level functionality needs to be sourced from external -# libraries, which are installed to $pkgauxdir. - -# Set a version string for this script. -scriptversion=2015-01-20.17; # UTC - -# General shell script boiler plate, and helper functions. -# Written by Gary V. Vaughan, 2004 - -# Copyright (C) 2004-2015 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3 of the License, or -# (at your option) any later version. - -# As a special exception to the GNU General Public License, if you distribute -# this file as part of a program or library that is built using GNU Libtool, -# you may include this file under the same distribution terms that you use -# for the rest of that program. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# Please report bugs or propose patches to gary@gnu.org. - - -## ------ ## -## Usage. ## -## ------ ## - -# Evaluate this file near the top of your script to gain access to -# the functions and variables defined here: -# -# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh -# -# If you need to override any of the default environment variable -# settings, do that before evaluating this file. - - -## -------------------- ## -## Shell normalisation. ## -## -------------------- ## - -# Some shells need a little help to be as Bourne compatible as possible. -# Before doing anything else, make sure all that help has been provided! - -DUALCASE=1; export DUALCASE # for MKS sh -if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : - emulate sh - NULLCMD=: - # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which - # is contrary to our usage. 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do - _G_sed_script=$_G_sed_script$nl$_G_sed_script - done - echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed - _G_sed_script= - - func_check_prog_sed () - { - _G_path_prog=$1 - - _G_count=0 - printf 0123456789 >conftest.in - while : - do - cat conftest.in conftest.in >conftest.tmp - mv conftest.tmp conftest.in - cp conftest.in conftest.nl - echo '' >> conftest.nl - "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break - diff conftest.out conftest.nl >/dev/null 2>&1 || break - _G_count=`expr $_G_count + 1` - if test "$_G_count" -gt "$_G_path_prog_max"; then - # Best one so far, save it but keep looking for a better one - func_check_prog_result=$_G_path_prog - _G_path_prog_max=$_G_count - fi - # 10*(2^10) chars as input seems more than enough - test 10 -lt "$_G_count" && break - done - rm -f conftest.in conftest.tmp conftest.nl conftest.out - } - - func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin - rm -f conftest.sed - SED=$func_path_progs_result -} - - -# Unless the user overrides by setting GREP, search the path for either GNU -# grep, or the grep that truncates its output the least. -test -z "$GREP" && { - func_check_prog_grep () - { - _G_path_prog=$1 - - _G_count=0 - _G_path_prog_max=0 - printf 0123456789 >conftest.in - while : - do - cat conftest.in conftest.in >conftest.tmp - mv conftest.tmp conftest.in - cp conftest.in conftest.nl - echo 'GREP' >> conftest.nl - "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break - diff conftest.out conftest.nl >/dev/null 2>&1 || break - _G_count=`expr $_G_count + 1` - if test "$_G_count" -gt "$_G_path_prog_max"; 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If nonempty, add APPEND to the result, -# otherwise set result to NONDIR_REPLACEMENT. -eval 'func_dirname () -{ - $debug_cmd - - '"$_d"' -}' - - -# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT -# -------------------------------------------------------- -# Perform func_basename and func_dirname in a single function -# call: -# dirname: Compute the dirname of FILE. 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STRING may not -# start with a hyphen. - test -z "$_G_HAVE_XSI_OPS" \ - && (eval 'x=a/b/c; - test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ - && _G_HAVE_XSI_OPS=yes - -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_len () - { - $debug_cmd - - func_len_result=${#1} - }' -else - func_len () - { - $debug_cmd - - func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` - } -fi - - -# func_mkdir_p DIRECTORY-PATH -# --------------------------- -# Make sure the entire path to DIRECTORY-PATH is available. -func_mkdir_p () -{ - $debug_cmd - - _G_directory_path=$1 - _G_dir_list= - - if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then - - # Protect directory names starting with '-' - case $_G_directory_path in - -*) _G_directory_path=./$_G_directory_path ;; - esac - - # While some portion of DIR does not yet exist... - while test ! -d "$_G_directory_path"; do - # ...make a list in topmost first order. Use a colon delimited - # list incase some portion of path contains whitespace. - _G_dir_list=$_G_directory_path:$_G_dir_list - - # If the last portion added has no slash in it, the list is done - case $_G_directory_path in */*) ;; *) break ;; esac - - # ...otherwise throw away the child directory and loop - _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` - done - _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` - - func_mkdir_p_IFS=$IFS; IFS=: - for _G_dir in $_G_dir_list; do - IFS=$func_mkdir_p_IFS - # mkdir can fail with a 'File exist' error if two processes - # try to create one of the directories concurrently. Don't - # stop in that case! - $MKDIR "$_G_dir" 2>/dev/null || : - done - IFS=$func_mkdir_p_IFS - - # Bail out if we (or some other process) failed to create a directory. - test -d "$_G_directory_path" || \ - func_fatal_error "Failed to create '$1'" - fi -} - - -# func_mktempdir [BASENAME] -# ------------------------- -# Make a temporary directory that won't clash with other running -# libtool processes, and avoids race conditions if possible. If -# given, BASENAME is the basename for that directory. -func_mktempdir () -{ - $debug_cmd - - _G_template=${TMPDIR-/tmp}/${1-$progname} - - if test : = "$opt_dry_run"; then - # Return a directory name, but don't create it in dry-run mode - _G_tmpdir=$_G_template-$$ - else - - # If mktemp works, use that first and foremost - _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` - - if test ! -d "$_G_tmpdir"; then - # Failing that, at least try and use $RANDOM to avoid a race - _G_tmpdir=$_G_template-${RANDOM-0}$$ - - func_mktempdir_umask=`umask` - umask 0077 - $MKDIR "$_G_tmpdir" - umask $func_mktempdir_umask - fi - - # If we're not in dry-run mode, bomb out on failure - test -d "$_G_tmpdir" || \ - func_fatal_error "cannot create temporary directory '$_G_tmpdir'" - fi - - $ECHO "$_G_tmpdir" -} - - -# func_normal_abspath PATH -# ------------------------ -# Remove doubled-up and trailing slashes, "." path components, -# and cancel out any ".." path components in PATH after making -# it an absolute path. -func_normal_abspath () -{ - $debug_cmd - - # These SED scripts presuppose an absolute path with a trailing slash. - _G_pathcar='s|^/\([^/]*\).*$|\1|' - _G_pathcdr='s|^/[^/]*||' - _G_removedotparts=':dotsl - s|/\./|/|g - t dotsl - s|/\.$|/|' - _G_collapseslashes='s|/\{1,\}|/|g' - _G_finalslash='s|/*$|/|' - - # Start from root dir and reassemble the path. - func_normal_abspath_result= - func_normal_abspath_tpath=$1 - func_normal_abspath_altnamespace= - case $func_normal_abspath_tpath in - "") - # Empty path, that just means $cwd. - func_stripname '' '/' "`pwd`" - func_normal_abspath_result=$func_stripname_result - return - ;; - # The next three entries are used to spot a run of precisely - # two leading slashes without using negated character classes; - # we take advantage of case's first-match behaviour. - ///*) - # Unusual form of absolute path, do nothing. - ;; - //*) - # Not necessarily an ordinary path; POSIX reserves leading '//' - # and for example Cygwin uses it to access remote file shares - # over CIFS/SMB, so we conserve a leading double slash if found. - func_normal_abspath_altnamespace=/ - ;; - /*) - # Absolute path, do nothing. - ;; - *) - # Relative path, prepend $cwd. - func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath - ;; - esac - - # Cancel out all the simple stuff to save iterations. We also want - # the path to end with a slash for ease of parsing, so make sure - # there is one (and only one) here. - func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` - while :; do - # Processed it all yet? - if test / = "$func_normal_abspath_tpath"; then - # If we ascended to the root using ".." the result may be empty now. - if test -z "$func_normal_abspath_result"; then - func_normal_abspath_result=/ - fi - break - fi - func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_pathcar"` - func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_pathcdr"` - # Figure out what to do with it - case $func_normal_abspath_tcomponent in - "") - # Trailing empty path component, ignore it. - ;; - ..) - # Parent dir; strip last assembled component from result. - func_dirname "$func_normal_abspath_result" - func_normal_abspath_result=$func_dirname_result - ;; - *) - # Actual path component, append it. - func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" - ;; - esac - done - # Restore leading double-slash if one was found on entry. - func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result -} - - -# func_notquiet ARG... -# -------------------- -# Echo program name prefixed message only when not in quiet mode. -func_notquiet () -{ - $debug_cmd - - $opt_quiet || func_echo ${1+"$@"} - - # A bug in bash halts the script if the last line of a function - # fails when set -e is in force, so we need another command to - # work around that: - : -} - - -# func_relative_path SRCDIR DSTDIR -# -------------------------------- -# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. -func_relative_path () -{ - $debug_cmd - - func_relative_path_result= - func_normal_abspath "$1" - func_relative_path_tlibdir=$func_normal_abspath_result - func_normal_abspath "$2" - func_relative_path_tbindir=$func_normal_abspath_result - - # Ascend the tree starting from libdir - while :; do - # check if we have found a prefix of bindir - case $func_relative_path_tbindir in - $func_relative_path_tlibdir) - # found an exact match - func_relative_path_tcancelled= - break - ;; - $func_relative_path_tlibdir*) - # found a matching prefix - func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" - func_relative_path_tcancelled=$func_stripname_result - if test -z "$func_relative_path_result"; then - func_relative_path_result=. - fi - break - ;; - *) - func_dirname $func_relative_path_tlibdir - func_relative_path_tlibdir=$func_dirname_result - if test -z "$func_relative_path_tlibdir"; then - # Have to descend all the way to the root! - func_relative_path_result=../$func_relative_path_result - func_relative_path_tcancelled=$func_relative_path_tbindir - break - fi - func_relative_path_result=../$func_relative_path_result - ;; - esac - done - - # Now calculate path; take care to avoid doubling-up slashes. - func_stripname '' '/' "$func_relative_path_result" - func_relative_path_result=$func_stripname_result - func_stripname '/' '/' "$func_relative_path_tcancelled" - if test -n "$func_stripname_result"; then - func_append func_relative_path_result "/$func_stripname_result" - fi - - # Normalisation. If bindir is libdir, return '.' else relative path. - if test -n "$func_relative_path_result"; then - func_stripname './' '' "$func_relative_path_result" - func_relative_path_result=$func_stripname_result - fi - - test -n "$func_relative_path_result" || func_relative_path_result=. - - : -} - - -# func_quote_for_eval ARG... -# -------------------------- -# Aesthetically quote ARGs to be evaled later. -# This function returns two values: -# i) func_quote_for_eval_result -# double-quoted, suitable for a subsequent eval -# ii) func_quote_for_eval_unquoted_result -# has all characters that are still active within double -# quotes backslashified. -func_quote_for_eval () -{ - $debug_cmd - - func_quote_for_eval_unquoted_result= - func_quote_for_eval_result= - while test 0 -lt $#; do - case $1 in - *[\\\`\"\$]*) - _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; - *) - _G_unquoted_arg=$1 ;; - esac - if test -n "$func_quote_for_eval_unquoted_result"; then - func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" - else - func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" - fi - - case $_G_unquoted_arg in - # Double-quote args containing shell metacharacters to delay - # word splitting, command substitution and variable expansion - # for a subsequent eval. - # Many Bourne shells cannot handle close brackets correctly - # in scan sets, so we specify it separately. - *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") - _G_quoted_arg=\"$_G_unquoted_arg\" - ;; - *) - _G_quoted_arg=$_G_unquoted_arg - ;; - esac - - if test -n "$func_quote_for_eval_result"; then - func_append func_quote_for_eval_result " $_G_quoted_arg" - else - func_append func_quote_for_eval_result "$_G_quoted_arg" - fi - shift - done -} - - -# func_quote_for_expand ARG -# ------------------------- -# Aesthetically quote ARG to be evaled later; same as above, -# but do not quote variable references. -func_quote_for_expand () -{ - $debug_cmd - - case $1 in - *[\\\`\"]*) - _G_arg=`$ECHO "$1" | $SED \ - -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; - *) - _G_arg=$1 ;; - esac - - case $_G_arg in - # Double-quote args containing shell metacharacters to delay - # word splitting and command substitution for a subsequent eval. - # Many Bourne shells cannot handle close brackets correctly - # in scan sets, so we specify it separately. - *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") - _G_arg=\"$_G_arg\" - ;; - esac - - func_quote_for_expand_result=$_G_arg -} - - -# func_stripname PREFIX SUFFIX NAME -# --------------------------------- -# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. -# PREFIX and SUFFIX must not contain globbing or regex special -# characters, hashes, percent signs, but SUFFIX may contain a leading -# dot (in which case that matches only a dot). -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_stripname () - { - $debug_cmd - - # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are - # positional parameters, so assign one to ordinary variable first. - func_stripname_result=$3 - func_stripname_result=${func_stripname_result#"$1"} - func_stripname_result=${func_stripname_result%"$2"} - }' -else - func_stripname () - { - $debug_cmd - - case $2 in - .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; - *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; - esac - } -fi - - -# func_show_eval CMD [FAIL_EXP] -# ----------------------------- -# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is -# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP -# is given, then evaluate it. -func_show_eval () -{ - $debug_cmd - - _G_cmd=$1 - _G_fail_exp=${2-':'} - - func_quote_for_expand "$_G_cmd" - eval "func_notquiet $func_quote_for_expand_result" - - $opt_dry_run || { - eval "$_G_cmd" - _G_status=$? - if test 0 -ne "$_G_status"; then - eval "(exit $_G_status); $_G_fail_exp" - fi - } -} - - -# func_show_eval_locale CMD [FAIL_EXP] -# ------------------------------------ -# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is -# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP -# is given, then evaluate it. Use the saved locale for evaluation. -func_show_eval_locale () -{ - $debug_cmd - - _G_cmd=$1 - _G_fail_exp=${2-':'} - - $opt_quiet || { - func_quote_for_expand "$_G_cmd" - eval "func_echo $func_quote_for_expand_result" - } - - $opt_dry_run || { - eval "$_G_user_locale - $_G_cmd" - _G_status=$? - eval "$_G_safe_locale" - if test 0 -ne "$_G_status"; then - eval "(exit $_G_status); $_G_fail_exp" - fi - } -} - - -# func_tr_sh -# ---------- -# Turn $1 into a string suitable for a shell variable name. -# Result is stored in $func_tr_sh_result. All characters -# not in the set a-zA-Z0-9_ are replaced with '_'. Further, -# if $1 begins with a digit, a '_' is prepended as well. -func_tr_sh () -{ - $debug_cmd - - case $1 in - [0-9]* | *[!a-zA-Z0-9_]*) - func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` - ;; - * ) - func_tr_sh_result=$1 - ;; - esac -} - - -# func_verbose ARG... -# ------------------- -# Echo program name prefixed message in verbose mode only. -func_verbose () -{ - $debug_cmd - - $opt_verbose && func_echo "$*" - - : -} - - -# func_warn_and_continue ARG... -# ----------------------------- -# Echo program name prefixed warning message to standard error. -func_warn_and_continue () -{ - $debug_cmd - - $require_term_colors - - func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 -} - - -# func_warning CATEGORY ARG... -# ---------------------------- -# Echo program name prefixed warning message to standard error. Warning -# messages can be filtered according to CATEGORY, where this function -# elides messages where CATEGORY is not listed in the global variable -# 'opt_warning_types'. -func_warning () -{ - $debug_cmd - - # CATEGORY must be in the warning_categories list! - case " $warning_categories " in - *" $1 "*) ;; - *) func_internal_error "invalid warning category '$1'" ;; - esac - - _G_category=$1 - shift - - case " $opt_warning_types " in - *" $_G_category "*) $warning_func ${1+"$@"} ;; - esac -} - - -# func_sort_ver VER1 VER2 -# ----------------------- -# 'sort -V' is not generally available. -# Note this deviates from the version comparison in automake -# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a -# but this should suffice as we won't be specifying old -# version formats or redundant trailing .0 in bootstrap.conf. -# If we did want full compatibility then we should probably -# use m4_version_compare from autoconf. -func_sort_ver () -{ - $debug_cmd - - printf '%s\n%s\n' "$1" "$2" \ - | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n -} - -# func_lt_ver PREV CURR -# --------------------- -# Return true if PREV and CURR are in the correct order according to -# func_sort_ver, otherwise false. Use it like this: -# -# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." -func_lt_ver () -{ - $debug_cmd - - test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` -} - - -# Local variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" -# time-stamp-time-zone: "UTC" -# End: -#! /bin/sh - -# Set a version string for this script. -scriptversion=2014-01-07.03; # UTC - -# A portable, pluggable option parser for Bourne shell. -# Written by Gary V. Vaughan, 2010 - -# Copyright (C) 2010-2015 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# Please report bugs or propose patches to gary@gnu.org. - - -## ------ ## -## Usage. ## -## ------ ## - -# This file is a library for parsing options in your shell scripts along -# with assorted other useful supporting features that you can make use -# of too. -# -# For the simplest scripts you might need only: -# -# #!/bin/sh -# . relative/path/to/funclib.sh -# . relative/path/to/options-parser -# scriptversion=1.0 -# func_options ${1+"$@"} -# eval set dummy "$func_options_result"; shift -# ...rest of your script... -# -# In order for the '--version' option to work, you will need to have a -# suitably formatted comment like the one at the top of this file -# starting with '# Written by ' and ending with '# warranty; '. -# -# For '-h' and '--help' to work, you will also need a one line -# description of your script's purpose in a comment directly above the -# '# Written by ' line, like the one at the top of this file. -# -# The default options also support '--debug', which will turn on shell -# execution tracing (see the comment above debug_cmd below for another -# use), and '--verbose' and the func_verbose function to allow your script -# to display verbose messages only when your user has specified -# '--verbose'. -# -# After sourcing this file, you can plug processing for additional -# options by amending the variables from the 'Configuration' section -# below, and following the instructions in the 'Option parsing' -# section further down. - -## -------------- ## -## Configuration. ## -## -------------- ## - -# You should override these variables in your script after sourcing this -# file so that they reflect the customisations you have added to the -# option parser. - -# The usage line for option parsing errors and the start of '-h' and -# '--help' output messages. You can embed shell variables for delayed -# expansion at the time the message is displayed, but you will need to -# quote other shell meta-characters carefully to prevent them being -# expanded when the contents are evaled. -usage='$progpath [OPTION]...' - -# Short help message in response to '-h' and '--help'. Add to this or -# override it after sourcing this library to reflect the full set of -# options your script accepts. -usage_message="\ - --debug enable verbose shell tracing - -W, --warnings=CATEGORY - report the warnings falling in CATEGORY [all] - -v, --verbose verbosely report processing - --version print version information and exit - -h, --help print short or long help message and exit -" - -# Additional text appended to 'usage_message' in response to '--help'. -long_help_message=" -Warning categories include: - 'all' show all warnings - 'none' turn off all the warnings - 'error' warnings are treated as fatal errors" - -# Help message printed before fatal option parsing errors. -fatal_help="Try '\$progname --help' for more information." - - - -## ------------------------- ## -## Hook function management. ## -## ------------------------- ## - -# This section contains functions for adding, removing, and running hooks -# to the main code. A hook is just a named list of of function, that can -# be run in order later on. - -# func_hookable FUNC_NAME -# ----------------------- -# Declare that FUNC_NAME will run hooks added with -# 'func_add_hook FUNC_NAME ...'. -func_hookable () -{ - $debug_cmd - - func_append hookable_fns " $1" -} - - -# func_add_hook FUNC_NAME HOOK_FUNC -# --------------------------------- -# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must -# first have been declared "hookable" by a call to 'func_hookable'. -func_add_hook () -{ - $debug_cmd - - case " $hookable_fns " in - *" $1 "*) ;; - *) func_fatal_error "'$1' does not accept hook functions." ;; - esac - - eval func_append ${1}_hooks '" $2"' -} - - -# func_remove_hook FUNC_NAME HOOK_FUNC -# ------------------------------------ -# Remove HOOK_FUNC from the list of functions called by FUNC_NAME. -func_remove_hook () -{ - $debug_cmd - - eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' -} - - -# func_run_hooks FUNC_NAME [ARG]... -# --------------------------------- -# Run all hook functions registered to FUNC_NAME. -# It is assumed that the list of hook functions contains nothing more -# than a whitespace-delimited list of legal shell function names, and -# no effort is wasted trying to catch shell meta-characters or preserve -# whitespace. -func_run_hooks () -{ - $debug_cmd - - case " $hookable_fns " in - *" $1 "*) ;; - *) func_fatal_error "'$1' does not support hook funcions.n" ;; - esac - - eval _G_hook_fns=\$$1_hooks; shift - - for _G_hook in $_G_hook_fns; do - eval $_G_hook '"$@"' - - # store returned options list back into positional - # parameters for next 'cmd' execution. - eval _G_hook_result=\$${_G_hook}_result - eval set dummy "$_G_hook_result"; shift - done - - func_quote_for_eval ${1+"$@"} - func_run_hooks_result=$func_quote_for_eval_result -} - - - -## --------------- ## -## Option parsing. ## -## --------------- ## - -# In order to add your own option parsing hooks, you must accept the -# full positional parameter list in your hook function, remove any -# options that you action, and then pass back the remaining unprocessed -# options in '_result', escaped suitably for -# 'eval'. Like this: -# -# my_options_prep () -# { -# $debug_cmd -# -# # Extend the existing usage message. -# usage_message=$usage_message' -# -s, --silent don'\''t print informational messages -# ' -# -# func_quote_for_eval ${1+"$@"} -# my_options_prep_result=$func_quote_for_eval_result -# } -# func_add_hook func_options_prep my_options_prep -# -# -# my_silent_option () -# { -# $debug_cmd -# -# # Note that for efficiency, we parse as many options as we can -# # recognise in a loop before passing the remainder back to the -# # caller on the first unrecognised argument we encounter. -# while test $# -gt 0; do -# opt=$1; shift -# case $opt in -# --silent|-s) opt_silent=: ;; -# # Separate non-argument short options: -# -s*) func_split_short_opt "$_G_opt" -# set dummy "$func_split_short_opt_name" \ -# "-$func_split_short_opt_arg" ${1+"$@"} -# shift -# ;; -# *) set dummy "$_G_opt" "$*"; shift; break ;; -# esac -# done -# -# func_quote_for_eval ${1+"$@"} -# my_silent_option_result=$func_quote_for_eval_result -# } -# func_add_hook func_parse_options my_silent_option -# -# -# my_option_validation () -# { -# $debug_cmd -# -# $opt_silent && $opt_verbose && func_fatal_help "\ -# '--silent' and '--verbose' options are mutually exclusive." -# -# func_quote_for_eval ${1+"$@"} -# my_option_validation_result=$func_quote_for_eval_result -# } -# func_add_hook func_validate_options my_option_validation -# -# You'll alse need to manually amend $usage_message to reflect the extra -# options you parse. It's preferable to append if you can, so that -# multiple option parsing hooks can be added safely. - - -# func_options [ARG]... -# --------------------- -# All the functions called inside func_options are hookable. See the -# individual implementations for details. -func_hookable func_options -func_options () -{ - $debug_cmd - - func_options_prep ${1+"$@"} - eval func_parse_options \ - ${func_options_prep_result+"$func_options_prep_result"} - eval func_validate_options \ - ${func_parse_options_result+"$func_parse_options_result"} - - eval func_run_hooks func_options \ - ${func_validate_options_result+"$func_validate_options_result"} - - # save modified positional parameters for caller - func_options_result=$func_run_hooks_result -} - - -# func_options_prep [ARG]... -# -------------------------- -# All initialisations required before starting the option parse loop. -# Note that when calling hook functions, we pass through the list of -# positional parameters. If a hook function modifies that list, and -# needs to propogate that back to rest of this script, then the complete -# modified list must be put in 'func_run_hooks_result' before -# returning. -func_hookable func_options_prep -func_options_prep () -{ - $debug_cmd - - # Option defaults: - opt_verbose=false - opt_warning_types= - - func_run_hooks func_options_prep ${1+"$@"} - - # save modified positional parameters for caller - func_options_prep_result=$func_run_hooks_result -} - - -# func_parse_options [ARG]... -# --------------------------- -# The main option parsing loop. -func_hookable func_parse_options -func_parse_options () -{ - $debug_cmd - - func_parse_options_result= - - # this just eases exit handling - while test $# -gt 0; do - # Defer to hook functions for initial option parsing, so they - # get priority in the event of reusing an option name. - func_run_hooks func_parse_options ${1+"$@"} - - # Adjust func_parse_options positional parameters to match - eval set dummy "$func_run_hooks_result"; shift - - # Break out of the loop if we already parsed every option. - test $# -gt 0 || break - - _G_opt=$1 - shift - case $_G_opt in - --debug|-x) debug_cmd='set -x' - func_echo "enabling shell trace mode" - $debug_cmd - ;; - - --no-warnings|--no-warning|--no-warn) - set dummy --warnings none ${1+"$@"} - shift - ;; - - --warnings|--warning|-W) - test $# = 0 && func_missing_arg $_G_opt && break - case " $warning_categories $1" in - *" $1 "*) - # trailing space prevents matching last $1 above - func_append_uniq opt_warning_types " $1" - ;; - *all) - opt_warning_types=$warning_categories - ;; - *none) - opt_warning_types=none - warning_func=: - ;; - *error) - opt_warning_types=$warning_categories - warning_func=func_fatal_error - ;; - *) - func_fatal_error \ - "unsupported warning category: '$1'" - ;; - esac - shift - ;; - - --verbose|-v) opt_verbose=: ;; - --version) func_version ;; - -\?|-h) func_usage ;; - --help) func_help ;; - - # Separate optargs to long options (plugins may need this): - --*=*) func_split_equals "$_G_opt" - set dummy "$func_split_equals_lhs" \ - "$func_split_equals_rhs" ${1+"$@"} - shift - ;; - - # Separate optargs to short options: - -W*) - func_split_short_opt "$_G_opt" - set dummy "$func_split_short_opt_name" \ - "$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - # Separate non-argument short options: - -\?*|-h*|-v*|-x*) - func_split_short_opt "$_G_opt" - set dummy "$func_split_short_opt_name" \ - "-$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - --) break ;; - -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; - *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; - esac - done - - # save modified positional parameters for caller - func_quote_for_eval ${1+"$@"} - func_parse_options_result=$func_quote_for_eval_result -} - - -# func_validate_options [ARG]... -# ------------------------------ -# Perform any sanity checks on option settings and/or unconsumed -# arguments. -func_hookable func_validate_options -func_validate_options () -{ - $debug_cmd - - # Display all warnings if -W was not given. - test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" - - func_run_hooks func_validate_options ${1+"$@"} - - # Bail if the options were screwed! - $exit_cmd $EXIT_FAILURE - - # save modified positional parameters for caller - func_validate_options_result=$func_run_hooks_result -} - - - -## ----------------- ## -## Helper functions. ## -## ----------------- ## - -# This section contains the helper functions used by the rest of the -# hookable option parser framework in ascii-betical order. - - -# func_fatal_help ARG... -# ---------------------- -# Echo program name prefixed message to standard error, followed by -# a help hint, and exit. -func_fatal_help () -{ - $debug_cmd - - eval \$ECHO \""Usage: $usage"\" - eval \$ECHO \""$fatal_help"\" - func_error ${1+"$@"} - exit $EXIT_FAILURE -} - - -# func_help -# --------- -# Echo long help message to standard output and exit. -func_help () -{ - $debug_cmd - - func_usage_message - $ECHO "$long_help_message" - exit 0 -} - - -# func_missing_arg ARGNAME -# ------------------------ -# Echo program name prefixed message to standard error and set global -# exit_cmd. -func_missing_arg () -{ - $debug_cmd - - func_error "Missing argument for '$1'." - exit_cmd=exit -} - - -# func_split_equals STRING -# ------------------------ -# Set func_split_equals_lhs and func_split_equals_rhs shell variables after -# splitting STRING at the '=' sign. -test -z "$_G_HAVE_XSI_OPS" \ - && (eval 'x=a/b/c; - test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ - && _G_HAVE_XSI_OPS=yes - -if test yes = "$_G_HAVE_XSI_OPS" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_split_equals () - { - $debug_cmd - - func_split_equals_lhs=${1%%=*} - func_split_equals_rhs=${1#*=} - test "x$func_split_equals_lhs" = "x$1" \ - && func_split_equals_rhs= - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_split_equals () - { - $debug_cmd - - func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` - func_split_equals_rhs= - test "x$func_split_equals_lhs" = "x$1" \ - || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` - } -fi #func_split_equals - - -# func_split_short_opt SHORTOPT -# ----------------------------- -# Set func_split_short_opt_name and func_split_short_opt_arg shell -# variables after splitting SHORTOPT after the 2nd character. -if test yes = "$_G_HAVE_XSI_OPS" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_split_short_opt () - { - $debug_cmd - - func_split_short_opt_arg=${1#??} - func_split_short_opt_name=${1%"$func_split_short_opt_arg"} - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_split_short_opt () - { - $debug_cmd - - func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` - func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` - } -fi #func_split_short_opt - - -# func_usage -# ---------- -# Echo short help message to standard output and exit. -func_usage () -{ - $debug_cmd - - func_usage_message - $ECHO "Run '$progname --help |${PAGER-more}' for full usage" - exit 0 -} - - -# func_usage_message -# ------------------ -# Echo short help message to standard output. -func_usage_message () -{ - $debug_cmd - - eval \$ECHO \""Usage: $usage"\" - echo - $SED -n 's|^# || - /^Written by/{ - x;p;x - } - h - /^Written by/q' < "$progpath" - echo - eval \$ECHO \""$usage_message"\" -} - - -# func_version -# ------------ -# Echo version message to standard output and exit. -func_version () -{ - $debug_cmd - - printf '%s\n' "$progname $scriptversion" - $SED -n ' - /(C)/!b go - :more - /\./!{ - N - s|\n# | | - b more - } - :go - /^# Written by /,/# warranty; / { - s|^# || - s|^# *$|| - s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| - p - } - /^# Written by / { - s|^# || - p - } - /^warranty; /q' < "$progpath" - - exit $? -} - - -# Local variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" -# time-stamp-time-zone: "UTC" -# End: - -# Set a version string. -scriptversion='(GNU libtool) 2.4.6' - - -# func_echo ARG... -# ---------------- -# Libtool also displays the current mode in messages, so override -# funclib.sh func_echo with this custom definition. -func_echo () -{ - $debug_cmd - - _G_message=$* - - func_echo_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_IFS - $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" - done - IFS=$func_echo_IFS -} - - -# func_warning ARG... -# ------------------- -# Libtool warnings are not categorized, so override funclib.sh -# func_warning with this simpler definition. -func_warning () -{ - $debug_cmd - - $warning_func ${1+"$@"} -} - - -## ---------------- ## -## Options parsing. ## -## ---------------- ## - -# Hook in the functions to make sure our own options are parsed during -# the option parsing loop. - -usage='$progpath [OPTION]... [MODE-ARG]...' - -# Short help message in response to '-h'. -usage_message="Options: - --config show all configuration variables - --debug enable verbose shell tracing - -n, --dry-run display commands without modifying any files - --features display basic configuration information and exit - --mode=MODE use operation mode MODE - --no-warnings equivalent to '-Wnone' - --preserve-dup-deps don't remove duplicate dependency libraries - --quiet, --silent don't print informational messages - --tag=TAG use configuration variables from tag TAG - -v, --verbose print more informational messages than default - --version print version information - -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] - -h, --help, --help-all print short, long, or detailed help message -" - -# Additional text appended to 'usage_message' in response to '--help'. -func_help () -{ - $debug_cmd - - func_usage_message - $ECHO "$long_help_message - -MODE must be one of the following: - - clean remove files from the build directory - compile compile a source file into a libtool object - execute automatically set library path, then run a program - finish complete the installation of libtool libraries - install install libraries or executables - link create a library or an executable - uninstall remove libraries from an installed directory - -MODE-ARGS vary depending on the MODE. When passed as first option, -'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. -Try '$progname --help --mode=MODE' for a more detailed description of MODE. - -When reporting a bug, please describe a test case to reproduce it and -include the following information: - - host-triplet: $host - shell: $SHELL - compiler: $LTCC - compiler flags: $LTCFLAGS - linker: $LD (gnu? $with_gnu_ld) - version: $progname (GNU libtool) 2.4.6 - automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` - autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` - -Report bugs to . -GNU libtool home page: . -General help using GNU software: ." - exit 0 -} - - -# func_lo2o OBJECT-NAME -# --------------------- -# Transform OBJECT-NAME from a '.lo' suffix to the platform specific -# object suffix. - -lo2o=s/\\.lo\$/.$objext/ -o2lo=s/\\.$objext\$/.lo/ - -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_lo2o () - { - case $1 in - *.lo) func_lo2o_result=${1%.lo}.$objext ;; - * ) func_lo2o_result=$1 ;; - esac - }' - - # func_xform LIBOBJ-OR-SOURCE - # --------------------------- - # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) - # suffix to a '.lo' libtool-object suffix. - eval 'func_xform () - { - func_xform_result=${1%.*}.lo - }' -else - # ...otherwise fall back to using sed. - func_lo2o () - { - func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` - } - - func_xform () - { - func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` - } -fi - - -# func_fatal_configuration ARG... -# ------------------------------- -# Echo program name prefixed message to standard error, followed by -# a configuration failure hint, and exit. -func_fatal_configuration () -{ - func__fatal_error ${1+"$@"} \ - "See the $PACKAGE documentation for more information." \ - "Fatal configuration error." -} - - -# func_config -# ----------- -# Display the configuration for all the tags in this script. -func_config () -{ - re_begincf='^# ### BEGIN LIBTOOL' - re_endcf='^# ### END LIBTOOL' - - # Default configuration. - $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" - - # Now print the configurations for the tags. - for tagname in $taglist; do - $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" - done - - exit $? -} - - -# func_features -# ------------- -# Display the features supported by this script. -func_features () -{ - echo "host: $host" - if test yes = "$build_libtool_libs"; then - echo "enable shared libraries" - else - echo "disable shared libraries" - fi - if test yes = "$build_old_libs"; then - echo "enable static libraries" - else - echo "disable static libraries" - fi - - exit $? -} - - -# func_enable_tag TAGNAME -# ----------------------- -# Verify that TAGNAME is valid, and either flag an error and exit, or -# enable the TAGNAME tag. We also add TAGNAME to the global $taglist -# variable here. -func_enable_tag () -{ - # Global variable: - tagname=$1 - - re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" - re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" - sed_extractcf=/$re_begincf/,/$re_endcf/p - - # Validate tagname. - case $tagname in - *[!-_A-Za-z0-9,/]*) - func_fatal_error "invalid tag name: $tagname" - ;; - esac - - # Don't test for the "default" C tag, as we know it's - # there but not specially marked. - case $tagname in - CC) ;; - *) - if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then - taglist="$taglist $tagname" - - # Evaluate the configuration. Be careful to quote the path - # and the sed script, to avoid splitting on whitespace, but - # also don't use non-portable quotes within backquotes within - # quotes we have to do it in 2 steps: - extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` - eval "$extractedcf" - else - func_error "ignoring unknown tag $tagname" - fi - ;; - esac -} - - -# func_check_version_match -# ------------------------ -# Ensure that we are using m4 macros, and libtool script from the same -# release of libtool. -func_check_version_match () -{ - if test "$package_revision" != "$macro_revision"; then - if test "$VERSION" != "$macro_version"; then - if test -z "$macro_version"; then - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from an older release. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - fi - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, -$progname: but the definition of this LT_INIT comes from revision $macro_revision. -$progname: You should recreate aclocal.m4 with macros from revision $package_revision -$progname: of $PACKAGE $VERSION and run autoconf again. -_LT_EOF - fi - - exit $EXIT_MISMATCH - fi -} - - -# libtool_options_prep [ARG]... -# ----------------------------- -# Preparation for options parsed by libtool. -libtool_options_prep () -{ - $debug_mode - - # Option defaults: - opt_config=false - opt_dlopen= - opt_dry_run=false - opt_help=false - opt_mode= - opt_preserve_dup_deps=false - opt_quiet=false - - nonopt= - preserve_args= - - # Shorthand for --mode=foo, only valid as the first argument - case $1 in - clean|clea|cle|cl) - shift; set dummy --mode clean ${1+"$@"}; shift - ;; - compile|compil|compi|comp|com|co|c) - shift; set dummy --mode compile ${1+"$@"}; shift - ;; - execute|execut|execu|exec|exe|ex|e) - shift; set dummy --mode execute ${1+"$@"}; shift - ;; - finish|finis|fini|fin|fi|f) - shift; set dummy --mode finish ${1+"$@"}; shift - ;; - install|instal|insta|inst|ins|in|i) - shift; set dummy --mode install ${1+"$@"}; shift - ;; - link|lin|li|l) - shift; set dummy --mode link ${1+"$@"}; shift - ;; - uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) - shift; set dummy --mode uninstall ${1+"$@"}; shift - ;; - esac - - # Pass back the list of options. - func_quote_for_eval ${1+"$@"} - libtool_options_prep_result=$func_quote_for_eval_result -} -func_add_hook func_options_prep libtool_options_prep - - -# libtool_parse_options [ARG]... -# --------------------------------- -# Provide handling for libtool specific options. -libtool_parse_options () -{ - $debug_cmd - - # Perform our own loop to consume as many options as possible in - # each iteration. - while test $# -gt 0; do - _G_opt=$1 - shift - case $_G_opt in - --dry-run|--dryrun|-n) - opt_dry_run=: - ;; - - --config) func_config ;; - - --dlopen|-dlopen) - opt_dlopen="${opt_dlopen+$opt_dlopen -}$1" - shift - ;; - - --preserve-dup-deps) - opt_preserve_dup_deps=: ;; - - --features) func_features ;; - - --finish) set dummy --mode finish ${1+"$@"}; shift ;; - - --help) opt_help=: ;; - - --help-all) opt_help=': help-all' ;; - - --mode) test $# = 0 && func_missing_arg $_G_opt && break - opt_mode=$1 - case $1 in - # Valid mode arguments: - clean|compile|execute|finish|install|link|relink|uninstall) ;; - - # Catch anything else as an error - *) func_error "invalid argument for $_G_opt" - exit_cmd=exit - break - ;; - esac - shift - ;; - - --no-silent|--no-quiet) - opt_quiet=false - func_append preserve_args " $_G_opt" - ;; - - --no-warnings|--no-warning|--no-warn) - opt_warning=false - func_append preserve_args " $_G_opt" - ;; - - --no-verbose) - opt_verbose=false - func_append preserve_args " $_G_opt" - ;; - - --silent|--quiet) - opt_quiet=: - opt_verbose=false - func_append preserve_args " $_G_opt" - ;; - - --tag) test $# = 0 && func_missing_arg $_G_opt && break - opt_tag=$1 - func_append preserve_args " $_G_opt $1" - func_enable_tag "$1" - shift - ;; - - --verbose|-v) opt_quiet=false - opt_verbose=: - func_append preserve_args " $_G_opt" - ;; - - # An option not handled by this hook function: - *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; - esac - done - - - # save modified positional parameters for caller - func_quote_for_eval ${1+"$@"} - libtool_parse_options_result=$func_quote_for_eval_result -} -func_add_hook func_parse_options libtool_parse_options - - - -# libtool_validate_options [ARG]... -# --------------------------------- -# Perform any sanity checks on option settings and/or unconsumed -# arguments. -libtool_validate_options () -{ - # save first non-option argument - if test 0 -lt $#; then - nonopt=$1 - shift - fi - - # preserve --debug - test : = "$debug_cmd" || func_append preserve_args " --debug" - - case $host in - # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 - # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 - *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) - # don't eliminate duplications in $postdeps and $predeps - opt_duplicate_compiler_generated_deps=: - ;; - *) - opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps - ;; - esac - - $opt_help || { - # Sanity checks first: - func_check_version_match - - test yes != "$build_libtool_libs" \ - && test yes != "$build_old_libs" \ - && func_fatal_configuration "not configured to build any kind of library" - - # Darwin sucks - eval std_shrext=\"$shrext_cmds\" - - # Only execute mode is allowed to have -dlopen flags. - if test -n "$opt_dlopen" && test execute != "$opt_mode"; then - func_error "unrecognized option '-dlopen'" - $ECHO "$help" 1>&2 - exit $EXIT_FAILURE - fi - - # Change the help message to a mode-specific one. - generic_help=$help - help="Try '$progname --help --mode=$opt_mode' for more information." - } - - # Pass back the unparsed argument list - func_quote_for_eval ${1+"$@"} - libtool_validate_options_result=$func_quote_for_eval_result -} -func_add_hook func_validate_options libtool_validate_options - - -# Process options as early as possible so that --help and --version -# can return quickly. -func_options ${1+"$@"} -eval set dummy "$func_options_result"; shift - - - -## ----------- ## -## Main. ## -## ----------- ## - -magic='%%%MAGIC variable%%%' -magic_exe='%%%MAGIC EXE variable%%%' - -# Global variables. -extracted_archives= -extracted_serial=0 - -# If this variable is set in any of the actions, the command in it -# will be execed at the end. This prevents here-documents from being -# left over by shells. -exec_cmd= - - -# A function that is used when there is no print builtin or printf. -func_fallback_echo () -{ - eval 'cat <<_LTECHO_EOF -$1 -_LTECHO_EOF' -} - -# func_generated_by_libtool -# True iff stdin has been generated by Libtool. This function is only -# a basic sanity check; it will hardly flush out determined imposters. -func_generated_by_libtool_p () -{ - $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 -} - -# func_lalib_p file -# True iff FILE is a libtool '.la' library or '.lo' object file. -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_lalib_p () -{ - test -f "$1" && - $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p -} - -# func_lalib_unsafe_p file -# True iff FILE is a libtool '.la' library or '.lo' object file. -# This function implements the same check as func_lalib_p without -# resorting to external programs. To this end, it redirects stdin and -# closes it afterwards, without saving the original file descriptor. -# As a safety measure, use it only where a negative result would be -# fatal anyway. Works if 'file' does not exist. -func_lalib_unsafe_p () -{ - lalib_p=no - if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then - for lalib_p_l in 1 2 3 4 - do - read lalib_p_line - case $lalib_p_line in - \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; - esac - done - exec 0<&5 5<&- - fi - test yes = "$lalib_p" -} - -# func_ltwrapper_script_p file -# True iff FILE is a libtool wrapper script -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_script_p () -{ - test -f "$1" && - $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p -} - -# func_ltwrapper_executable_p file -# True iff FILE is a libtool wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_executable_p () -{ - func_ltwrapper_exec_suffix= - case $1 in - *.exe) ;; - *) func_ltwrapper_exec_suffix=.exe ;; - esac - $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 -} - -# func_ltwrapper_scriptname file -# Assumes file is an ltwrapper_executable -# uses $file to determine the appropriate filename for a -# temporary ltwrapper_script. -func_ltwrapper_scriptname () -{ - func_dirname_and_basename "$1" "" "." - func_stripname '' '.exe' "$func_basename_result" - func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper -} - -# func_ltwrapper_p file -# True iff FILE is a libtool wrapper script or wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_p () -{ - func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" -} - - -# func_execute_cmds commands fail_cmd -# Execute tilde-delimited COMMANDS. -# If FAIL_CMD is given, eval that upon failure. -# FAIL_CMD may read-access the current command in variable CMD! -func_execute_cmds () -{ - $debug_cmd - - save_ifs=$IFS; IFS='~' - for cmd in $1; do - IFS=$sp$nl - eval cmd=\"$cmd\" - IFS=$save_ifs - func_show_eval "$cmd" "${2-:}" - done - IFS=$save_ifs -} - - -# func_source file -# Source FILE, adding directory component if necessary. -# Note that it is not necessary on cygwin/mingw to append a dot to -# FILE even if both FILE and FILE.exe exist: automatic-append-.exe -# behavior happens only for exec(3), not for open(2)! Also, sourcing -# 'FILE.' does not work on cygwin managed mounts. -func_source () -{ - $debug_cmd - - case $1 in - */* | *\\*) . "$1" ;; - *) . "./$1" ;; - esac -} - - -# func_resolve_sysroot PATH -# Replace a leading = in PATH with a sysroot. Store the result into -# func_resolve_sysroot_result -func_resolve_sysroot () -{ - func_resolve_sysroot_result=$1 - case $func_resolve_sysroot_result in - =*) - func_stripname '=' '' "$func_resolve_sysroot_result" - func_resolve_sysroot_result=$lt_sysroot$func_stripname_result - ;; - esac -} - -# func_replace_sysroot PATH -# If PATH begins with the sysroot, replace it with = and -# store the result into func_replace_sysroot_result. -func_replace_sysroot () -{ - case $lt_sysroot:$1 in - ?*:"$lt_sysroot"*) - func_stripname "$lt_sysroot" '' "$1" - func_replace_sysroot_result='='$func_stripname_result - ;; - *) - # Including no sysroot. - func_replace_sysroot_result=$1 - ;; - esac -} - -# func_infer_tag arg -# Infer tagged configuration to use if any are available and -# if one wasn't chosen via the "--tag" command line option. -# Only attempt this if the compiler in the base compile -# command doesn't match the default compiler. -# arg is usually of the form 'gcc ...' -func_infer_tag () -{ - $debug_cmd - - if test -n "$available_tags" && test -z "$tagname"; then - CC_quoted= - for arg in $CC; do - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case $@ in - # Blanks in the command may have been stripped by the calling shell, - # but not from the CC environment variable when configure was run. - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; - # Blanks at the start of $base_compile will cause this to fail - # if we don't check for them as well. - *) - for z in $available_tags; do - if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then - # Evaluate the configuration. - eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" - CC_quoted= - for arg in $CC; do - # Double-quote args containing other shell metacharacters. - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case "$@ " in - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) - # The compiler in the base compile command matches - # the one in the tagged configuration. - # Assume this is the tagged configuration we want. - tagname=$z - break - ;; - esac - fi - done - # If $tagname still isn't set, then no tagged configuration - # was found and let the user know that the "--tag" command - # line option must be used. - if test -z "$tagname"; then - func_echo "unable to infer tagged configuration" - func_fatal_error "specify a tag with '--tag'" -# else -# func_verbose "using $tagname tagged configuration" - fi - ;; - esac - fi -} - - - -# func_write_libtool_object output_name pic_name nonpic_name -# Create a libtool object file (analogous to a ".la" file), -# but don't create it if we're doing a dry run. -func_write_libtool_object () -{ - write_libobj=$1 - if test yes = "$build_libtool_libs"; then - write_lobj=\'$2\' - else - write_lobj=none - fi - - if test yes = "$build_old_libs"; then - write_oldobj=\'$3\' - else - write_oldobj=none - fi - - $opt_dry_run || { - cat >${write_libobj}T </dev/null` - if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then - func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | - $SED -e "$sed_naive_backslashify"` - else - func_convert_core_file_wine_to_w32_result= - fi - fi -} -# end: func_convert_core_file_wine_to_w32 - - -# func_convert_core_path_wine_to_w32 ARG -# Helper function used by path conversion functions when $build is *nix, and -# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly -# configured wine environment available, with the winepath program in $build's -# $PATH. Assumes ARG has no leading or trailing path separator characters. -# -# ARG is path to be converted from $build format to win32. -# Result is available in $func_convert_core_path_wine_to_w32_result. -# Unconvertible file (directory) names in ARG are skipped; if no directory names -# are convertible, then the result may be empty. -func_convert_core_path_wine_to_w32 () -{ - $debug_cmd - - # unfortunately, winepath doesn't convert paths, only file names - func_convert_core_path_wine_to_w32_result= - if test -n "$1"; then - oldIFS=$IFS - IFS=: - for func_convert_core_path_wine_to_w32_f in $1; do - IFS=$oldIFS - func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" - if test -n "$func_convert_core_file_wine_to_w32_result"; then - if test -z "$func_convert_core_path_wine_to_w32_result"; then - func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result - else - func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" - fi - fi - done - IFS=$oldIFS - fi -} -# end: func_convert_core_path_wine_to_w32 - - -# func_cygpath ARGS... -# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when -# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) -# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or -# (2), returns the Cygwin file name or path in func_cygpath_result (input -# file name or path is assumed to be in w32 format, as previously converted -# from $build's *nix or MSYS format). In case (3), returns the w32 file name -# or path in func_cygpath_result (input file name or path is assumed to be in -# Cygwin format). Returns an empty string on error. -# -# ARGS are passed to cygpath, with the last one being the file name or path to -# be converted. -# -# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH -# environment variable; do not put it in $PATH. -func_cygpath () -{ - $debug_cmd - - if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then - func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` - if test "$?" -ne 0; then - # on failure, ensure result is empty - func_cygpath_result= - fi - else - func_cygpath_result= - func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" - fi -} -#end: func_cygpath - - -# func_convert_core_msys_to_w32 ARG -# Convert file name or path ARG from MSYS format to w32 format. Return -# result in func_convert_core_msys_to_w32_result. -func_convert_core_msys_to_w32 () -{ - $debug_cmd - - # awkward: cmd appends spaces to result - func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | - $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` -} -#end: func_convert_core_msys_to_w32 - - -# func_convert_file_check ARG1 ARG2 -# Verify that ARG1 (a file name in $build format) was converted to $host -# format in ARG2. Otherwise, emit an error message, but continue (resetting -# func_to_host_file_result to ARG1). -func_convert_file_check () -{ - $debug_cmd - - if test -z "$2" && test -n "$1"; then - func_error "Could not determine host file name corresponding to" - func_error " '$1'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback: - func_to_host_file_result=$1 - fi -} -# end func_convert_file_check - - -# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH -# Verify that FROM_PATH (a path in $build format) was converted to $host -# format in TO_PATH. Otherwise, emit an error message, but continue, resetting -# func_to_host_file_result to a simplistic fallback value (see below). -func_convert_path_check () -{ - $debug_cmd - - if test -z "$4" && test -n "$3"; then - func_error "Could not determine the host path corresponding to" - func_error " '$3'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback. This is a deliberately simplistic "conversion" and - # should not be "improved". See libtool.info. - if test "x$1" != "x$2"; then - lt_replace_pathsep_chars="s|$1|$2|g" - func_to_host_path_result=`echo "$3" | - $SED -e "$lt_replace_pathsep_chars"` - else - func_to_host_path_result=$3 - fi - fi -} -# end func_convert_path_check - - -# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG -# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT -# and appending REPL if ORIG matches BACKPAT. -func_convert_path_front_back_pathsep () -{ - $debug_cmd - - case $4 in - $1 ) func_to_host_path_result=$3$func_to_host_path_result - ;; - esac - case $4 in - $2 ) func_append func_to_host_path_result "$3" - ;; - esac -} -# end func_convert_path_front_back_pathsep - - -################################################## -# $build to $host FILE NAME CONVERSION FUNCTIONS # -################################################## -# invoked via '$to_host_file_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# Result will be available in $func_to_host_file_result. - - -# func_to_host_file ARG -# Converts the file name ARG from $build format to $host format. Return result -# in func_to_host_file_result. -func_to_host_file () -{ - $debug_cmd - - $to_host_file_cmd "$1" -} -# end func_to_host_file - - -# func_to_tool_file ARG LAZY -# converts the file name ARG from $build format to toolchain format. Return -# result in func_to_tool_file_result. If the conversion in use is listed -# in (the comma separated) LAZY, no conversion takes place. -func_to_tool_file () -{ - $debug_cmd - - case ,$2, in - *,"$to_tool_file_cmd",*) - func_to_tool_file_result=$1 - ;; - *) - $to_tool_file_cmd "$1" - func_to_tool_file_result=$func_to_host_file_result - ;; - esac -} -# end func_to_tool_file - - -# func_convert_file_noop ARG -# Copy ARG to func_to_host_file_result. -func_convert_file_noop () -{ - func_to_host_file_result=$1 -} -# end func_convert_file_noop - - -# func_convert_file_msys_to_w32 ARG -# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_file_result. -func_convert_file_msys_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_to_host_file_result=$func_convert_core_msys_to_w32_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_w32 - - -# func_convert_file_cygwin_to_w32 ARG -# Convert file name ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_file_cygwin_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - # because $build is cygwin, we call "the" cygpath in $PATH; no need to use - # LT_CYGPATH in this case. - func_to_host_file_result=`cygpath -m "$1"` - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_cygwin_to_w32 - - -# func_convert_file_nix_to_w32 ARG -# Convert file name ARG from *nix to w32 format. Requires a wine environment -# and a working winepath. Returns result in func_to_host_file_result. -func_convert_file_nix_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_file_wine_to_w32 "$1" - func_to_host_file_result=$func_convert_core_file_wine_to_w32_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_w32 - - -# func_convert_file_msys_to_cygwin ARG -# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_file_msys_to_cygwin () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_cygpath -u "$func_convert_core_msys_to_w32_result" - func_to_host_file_result=$func_cygpath_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_cygwin - - -# func_convert_file_nix_to_cygwin ARG -# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed -# in a wine environment, working winepath, and LT_CYGPATH set. Returns result -# in func_to_host_file_result. -func_convert_file_nix_to_cygwin () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. - func_convert_core_file_wine_to_w32 "$1" - func_cygpath -u "$func_convert_core_file_wine_to_w32_result" - func_to_host_file_result=$func_cygpath_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_cygwin - - -############################################# -# $build to $host PATH CONVERSION FUNCTIONS # -############################################# -# invoked via '$to_host_path_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# The result will be available in $func_to_host_path_result. -# -# Path separators are also converted from $build format to $host format. If -# ARG begins or ends with a path separator character, it is preserved (but -# converted to $host format) on output. -# -# All path conversion functions are named using the following convention: -# file name conversion function : func_convert_file_X_to_Y () -# path conversion function : func_convert_path_X_to_Y () -# where, for any given $build/$host combination the 'X_to_Y' value is the -# same. If conversion functions are added for new $build/$host combinations, -# the two new functions must follow this pattern, or func_init_to_host_path_cmd -# will break. - - -# func_init_to_host_path_cmd -# Ensures that function "pointer" variable $to_host_path_cmd is set to the -# appropriate value, based on the value of $to_host_file_cmd. -to_host_path_cmd= -func_init_to_host_path_cmd () -{ - $debug_cmd - - if test -z "$to_host_path_cmd"; then - func_stripname 'func_convert_file_' '' "$to_host_file_cmd" - to_host_path_cmd=func_convert_path_$func_stripname_result - fi -} - - -# func_to_host_path ARG -# Converts the path ARG from $build format to $host format. Return result -# in func_to_host_path_result. -func_to_host_path () -{ - $debug_cmd - - func_init_to_host_path_cmd - $to_host_path_cmd "$1" -} -# end func_to_host_path - - -# func_convert_path_noop ARG -# Copy ARG to func_to_host_path_result. -func_convert_path_noop () -{ - func_to_host_path_result=$1 -} -# end func_convert_path_noop - - -# func_convert_path_msys_to_w32 ARG -# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_path_result. -func_convert_path_msys_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # Remove leading and trailing path separator characters from ARG. MSYS - # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; - # and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result=$func_convert_core_msys_to_w32_result - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_msys_to_w32 - - -# func_convert_path_cygwin_to_w32 ARG -# Convert path ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_path_cygwin_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_cygwin_to_w32 - - -# func_convert_path_nix_to_w32 ARG -# Convert path ARG from *nix to w32 format. Requires a wine environment and -# a working winepath. Returns result in func_to_host_file_result. -func_convert_path_nix_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result=$func_convert_core_path_wine_to_w32_result - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_nix_to_w32 - - -# func_convert_path_msys_to_cygwin ARG -# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_path_msys_to_cygwin () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_msys_to_w32_result" - func_to_host_path_result=$func_cygpath_result - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_msys_to_cygwin - - -# func_convert_path_nix_to_cygwin ARG -# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a -# a wine environment, working winepath, and LT_CYGPATH set. Returns result in -# func_to_host_file_result. -func_convert_path_nix_to_cygwin () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # Remove leading and trailing path separator characters from - # ARG. msys behavior is inconsistent here, cygpath turns them - # into '.;' and ';.', and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" - func_to_host_path_result=$func_cygpath_result - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_nix_to_cygwin - - -# func_dll_def_p FILE -# True iff FILE is a Windows DLL '.def' file. -# Keep in sync with _LT_DLL_DEF_P in libtool.m4 -func_dll_def_p () -{ - $debug_cmd - - func_dll_def_p_tmp=`$SED -n \ - -e 's/^[ ]*//' \ - -e '/^\(;.*\)*$/d' \ - -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ - -e q \ - "$1"` - test DEF = "$func_dll_def_p_tmp" -} - - -# func_mode_compile arg... -func_mode_compile () -{ - $debug_cmd - - # Get the compilation command and the source file. - base_compile= - srcfile=$nonopt # always keep a non-empty value in "srcfile" - suppress_opt=yes - suppress_output= - arg_mode=normal - libobj= - later= - pie_flag= - - for arg - do - case $arg_mode in - arg ) - # do not "continue". Instead, add this to base_compile - lastarg=$arg - arg_mode=normal - ;; - - target ) - libobj=$arg - arg_mode=normal - continue - ;; - - normal ) - # Accept any command-line options. - case $arg in - -o) - test -n "$libobj" && \ - func_fatal_error "you cannot specify '-o' more than once" - arg_mode=target - continue - ;; - - -pie | -fpie | -fPIE) - func_append pie_flag " $arg" - continue - ;; - - -shared | -static | -prefer-pic | -prefer-non-pic) - func_append later " $arg" - continue - ;; - - -no-suppress) - suppress_opt=no - continue - ;; - - -Xcompiler) - arg_mode=arg # the next one goes into the "base_compile" arg list - continue # The current "srcfile" will either be retained or - ;; # replaced later. I would guess that would be a bug. - - -Wc,*) - func_stripname '-Wc,' '' "$arg" - args=$func_stripname_result - lastarg= - save_ifs=$IFS; IFS=, - for arg in $args; do - IFS=$save_ifs - func_append_quoted lastarg "$arg" - done - IFS=$save_ifs - func_stripname ' ' '' "$lastarg" - lastarg=$func_stripname_result - - # Add the arguments to base_compile. - func_append base_compile " $lastarg" - continue - ;; - - *) - # Accept the current argument as the source file. - # The previous "srcfile" becomes the current argument. - # - lastarg=$srcfile - srcfile=$arg - ;; - esac # case $arg - ;; - esac # case $arg_mode - - # Aesthetically quote the previous argument. - func_append_quoted base_compile "$lastarg" - done # for arg - - case $arg_mode in - arg) - func_fatal_error "you must specify an argument for -Xcompile" - ;; - target) - func_fatal_error "you must specify a target with '-o'" - ;; - *) - # Get the name of the library object. - test -z "$libobj" && { - func_basename "$srcfile" - libobj=$func_basename_result - } - ;; - esac - - # Recognize several different file suffixes. - # If the user specifies -o file.o, it is replaced with file.lo - case $libobj in - *.[cCFSifmso] | \ - *.ada | *.adb | *.ads | *.asm | \ - *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ - *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) - func_xform "$libobj" - libobj=$func_xform_result - ;; - esac - - case $libobj in - *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; - *) - func_fatal_error "cannot determine name of library object from '$libobj'" - ;; - esac - - func_infer_tag $base_compile - - for arg in $later; do - case $arg in - -shared) - test yes = "$build_libtool_libs" \ - || func_fatal_configuration "cannot build a shared library" - build_old_libs=no - continue - ;; - - -static) - build_libtool_libs=no - build_old_libs=yes - continue - ;; - - -prefer-pic) - pic_mode=yes - continue - ;; - - -prefer-non-pic) - pic_mode=no - continue - ;; - esac - done - - func_quote_for_eval "$libobj" - test "X$libobj" != "X$func_quote_for_eval_result" \ - && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ - && func_warning "libobj name '$libobj' may not contain shell special characters." - func_dirname_and_basename "$obj" "/" "" - objname=$func_basename_result - xdir=$func_dirname_result - lobj=$xdir$objdir/$objname - - test -z "$base_compile" && \ - func_fatal_help "you must specify a compilation command" - - # Delete any leftover library objects. - if test yes = "$build_old_libs"; then - removelist="$obj $lobj $libobj ${libobj}T" - else - removelist="$lobj $libobj ${libobj}T" - fi - - # On Cygwin there's no "real" PIC flag so we must build both object types - case $host_os in - cygwin* | mingw* | pw32* | os2* | cegcc*) - pic_mode=default - ;; - esac - if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then - # non-PIC code in shared libraries is not supported - pic_mode=default - fi - - # Calculate the filename of the output object if compiler does - # not support -o with -c - if test no = "$compiler_c_o"; then - output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext - lockfile=$output_obj.lock - else - output_obj= - need_locks=no - lockfile= - fi - - # Lock this critical section if it is needed - # We use this script file to make the link, it avoids creating a new file - if test yes = "$need_locks"; then - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - elif test warn = "$need_locks"; then - if test -f "$lockfile"; then - $ECHO "\ -*** ERROR, $lockfile exists and contains: -`cat $lockfile 2>/dev/null` - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support '-c' and '-o' together. If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - func_append removelist " $output_obj" - $ECHO "$srcfile" > "$lockfile" - fi - - $opt_dry_run || $RM $removelist - func_append removelist " $lockfile" - trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 - - func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 - srcfile=$func_to_tool_file_result - func_quote_for_eval "$srcfile" - qsrcfile=$func_quote_for_eval_result - - # Only build a PIC object if we are building libtool libraries. - if test yes = "$build_libtool_libs"; then - # Without this assignment, base_compile gets emptied. - fbsd_hideous_sh_bug=$base_compile - - if test no != "$pic_mode"; then - command="$base_compile $qsrcfile $pic_flag" - else - # Don't build PIC code - command="$base_compile $qsrcfile" - fi - - func_mkdir_p "$xdir$objdir" - - if test -z "$output_obj"; then - # Place PIC objects in $objdir - func_append command " -o $lobj" - fi - - func_show_eval_locale "$command" \ - 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' - - if test warn = "$need_locks" && - test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then - $ECHO "\ -*** ERROR, $lockfile contains: -`cat $lockfile 2>/dev/null` - -but it should contain: -$srcfile - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support '-c' and '-o' together. If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - - # Just move the object if needed, then go on to compile the next one - if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then - func_show_eval '$MV "$output_obj" "$lobj"' \ - 'error=$?; $opt_dry_run || $RM $removelist; exit $error' - fi - - # Allow error messages only from the first compilation. - if test yes = "$suppress_opt"; then - suppress_output=' >/dev/null 2>&1' - fi - fi - - # Only build a position-dependent object if we build old libraries. - if test yes = "$build_old_libs"; then - if test yes != "$pic_mode"; then - # Don't build PIC code - command="$base_compile $qsrcfile$pie_flag" - else - command="$base_compile $qsrcfile $pic_flag" - fi - if test yes = "$compiler_c_o"; then - func_append command " -o $obj" - fi - - # Suppress compiler output if we already did a PIC compilation. - func_append command "$suppress_output" - func_show_eval_locale "$command" \ - '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' - - if test warn = "$need_locks" && - test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then - $ECHO "\ -*** ERROR, $lockfile contains: -`cat $lockfile 2>/dev/null` - -but it should contain: -$srcfile - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support '-c' and '-o' together. 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Files ending in '.la' are -treated as uninstalled libtool libraries, other files are standard or library -object files. - -If the OUTPUT-FILE ends in '.la', then a libtool library is created, -only library objects ('.lo' files) may be specified, and '-rpath' is -required, except when creating a convenience library. - -If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created -using 'ar' and 'ranlib', or on Windows using 'lib'. - -If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file -is created, otherwise an executable program is created." - ;; - - uninstall) - $ECHO \ -"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... - -Remove libraries from an installation directory. - -RM is the name of the program to use to delete files associated with each FILE -(typically '/bin/rm'). 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then - # Do the single finish_eval. - eval cmds=\"$finish_eval\" - $opt_dry_run || eval "$cmds" || func_append admincmds " - $cmds" - fi - done - fi - - # Exit here if they wanted silent mode. - $opt_quiet && exit $EXIT_SUCCESS - - if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then - echo "----------------------------------------------------------------------" - echo "Libraries have been installed in:" - for libdir in $libdirs; do - $ECHO " $libdir" - done - echo - echo "If you ever happen to want to link against installed libraries" - echo "in a given directory, LIBDIR, you must either use libtool, and" - echo "specify the full pathname of the library, or use the '-LLIBDIR'" - echo "flag during linking and do at least one of the following:" - if test -n "$shlibpath_var"; then - echo " - add LIBDIR to the '$shlibpath_var' environment variable" - echo " during execution" - fi - if test -n "$runpath_var"; then - echo " - add LIBDIR to the '$runpath_var' environment variable" - echo " during linking" - fi - if test -n "$hardcode_libdir_flag_spec"; then - libdir=LIBDIR - eval flag=\"$hardcode_libdir_flag_spec\" - - $ECHO " - use the '$flag' linker flag" - fi - if test -n "$admincmds"; then - $ECHO " - have your system administrator run these commands:$admincmds" - fi - if test -f /etc/ld.so.conf; then - echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" - fi - echo - - echo "See any operating system documentation about shared libraries for" - case $host in - solaris2.[6789]|solaris2.1[0-9]) - echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" - echo "pages." - ;; - *) - echo "more information, such as the ld(1) and ld.so(8) manual pages." - ;; - esac - echo "----------------------------------------------------------------------" - fi - exit $EXIT_SUCCESS -} - -test finish = "$opt_mode" && func_mode_finish ${1+"$@"} - - -# func_mode_install arg... -func_mode_install () -{ - $debug_cmd - - # There may be an optional sh(1) argument at the beginning of - # install_prog (especially on Windows NT). - if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || - # Allow the use of GNU shtool's install command. - case $nonopt in *shtool*) :;; *) false;; esac - then - # Aesthetically quote it. - func_quote_for_eval "$nonopt" - install_prog="$func_quote_for_eval_result " - arg=$1 - shift - else - install_prog= - arg=$nonopt - fi - - # The real first argument should be the name of the installation program. - # Aesthetically quote it. - func_quote_for_eval "$arg" - func_append install_prog "$func_quote_for_eval_result" - install_shared_prog=$install_prog - case " $install_prog " in - *[\\\ /]cp\ *) install_cp=: ;; - *) install_cp=false ;; - esac - - # We need to accept at least all the BSD install flags. - dest= - files= - opts= - prev= - install_type= - isdir=false - stripme= - no_mode=: - for arg - do - arg2= - if test -n "$dest"; then - func_append files " $dest" - dest=$arg - continue - fi - - case $arg in - -d) isdir=: ;; - -f) - if $install_cp; then :; else - prev=$arg - fi - ;; - -g | -m | -o) - prev=$arg - ;; - -s) - stripme=" -s" - continue - ;; - -*) - ;; - *) - # If the previous option needed an argument, then skip it. - if test -n "$prev"; then - if test X-m = "X$prev" && test -n "$install_override_mode"; then - arg2=$install_override_mode - no_mode=false - fi - prev= - else - dest=$arg - continue - fi - ;; - esac - - # Aesthetically quote the argument. - func_quote_for_eval "$arg" - func_append install_prog " $func_quote_for_eval_result" - if test -n "$arg2"; then - func_quote_for_eval "$arg2" - fi - func_append install_shared_prog " $func_quote_for_eval_result" - done - - test -z "$install_prog" && \ - func_fatal_help "you must specify an install program" - - test -n "$prev" && \ - func_fatal_help "the '$prev' option requires an argument" - - if test -n "$install_override_mode" && $no_mode; then - if $install_cp; then :; else - func_quote_for_eval "$install_override_mode" - func_append install_shared_prog " -m $func_quote_for_eval_result" - fi - fi - - if test -z "$files"; then - if test -z "$dest"; then - func_fatal_help "no file or destination specified" - else - func_fatal_help "you must specify a destination" - fi - fi - - # Strip any trailing slash from the destination. - func_stripname '' '/' "$dest" - dest=$func_stripname_result - - # Check to see that the destination is a directory. - test -d "$dest" && isdir=: - if $isdir; then - destdir=$dest - destname= - else - func_dirname_and_basename "$dest" "" "." - destdir=$func_dirname_result - destname=$func_basename_result - - # Not a directory, so check to see that there is only one file specified. - set dummy $files; shift - test "$#" -gt 1 && \ - func_fatal_help "'$dest' is not a directory" - fi - case $destdir in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - for file in $files; do - case $file in - *.lo) ;; - *) - func_fatal_help "'$destdir' must be an absolute directory name" - ;; - esac - done - ;; - esac - - # This variable tells wrapper scripts just to set variables rather - # than running their programs. - libtool_install_magic=$magic - - staticlibs= - future_libdirs= - current_libdirs= - for file in $files; do - - # Do each installation. - case $file in - *.$libext) - # Do the static libraries later. - func_append staticlibs " $file" - ;; - - *.la) - func_resolve_sysroot "$file" - file=$func_resolve_sysroot_result - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$file" \ - || func_fatal_help "'$file' is not a valid libtool archive" - - library_names= - old_library= - relink_command= - func_source "$file" - - # Add the libdir to current_libdirs if it is the destination. - if test "X$destdir" = "X$libdir"; then - case "$current_libdirs " in - *" $libdir "*) ;; - *) func_append current_libdirs " $libdir" ;; - esac - else - # Note the libdir as a future libdir. - case "$future_libdirs " in - *" $libdir "*) ;; - *) func_append future_libdirs " $libdir" ;; - esac - fi - - func_dirname "$file" "/" "" - dir=$func_dirname_result - func_append dir "$objdir" - - if test -n "$relink_command"; then - # Determine the prefix the user has applied to our future dir. - inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` - - # Don't allow the user to place us outside of our expected - # location b/c this prevents finding dependent libraries that - # are installed to the same prefix. - # At present, this check doesn't affect windows .dll's that - # are installed into $libdir/../bin (currently, that works fine) - # but it's something to keep an eye on. - test "$inst_prefix_dir" = "$destdir" && \ - func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" - - if test -n "$inst_prefix_dir"; then - # Stick the inst_prefix_dir data into the link command. - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` - else - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` - fi - - func_warning "relinking '$file'" - func_show_eval "$relink_command" \ - 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' - fi - - # See the names of the shared library. - set dummy $library_names; shift - if test -n "$1"; then - realname=$1 - shift - - srcname=$realname - test -n "$relink_command" && srcname=${realname}T - - # Install the shared library and build the symlinks. - func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ - 'exit $?' - tstripme=$stripme - case $host_os in - cygwin* | mingw* | pw32* | cegcc*) - case $realname in - *.dll.a) - tstripme= - ;; - esac - ;; - os2*) - case $realname in - *_dll.a) - tstripme= - ;; - esac - ;; - esac - if test -n "$tstripme" && test -n "$striplib"; then - func_show_eval "$striplib $destdir/$realname" 'exit $?' - fi - - if test "$#" -gt 0; then - # Delete the old symlinks, and create new ones. - # Try 'ln -sf' first, because the 'ln' binary might depend on - # the symlink we replace! Solaris /bin/ln does not understand -f, - # so we also need to try rm && ln -s. - for linkname - do - test "$linkname" != "$realname" \ - && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" - done - fi - - # Do each command in the postinstall commands. - lib=$destdir/$realname - func_execute_cmds "$postinstall_cmds" 'exit $?' - fi - - # Install the pseudo-library for information purposes. - func_basename "$file" - name=$func_basename_result - instname=$dir/${name}i - func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' - - # Maybe install the static library, too. - test -n "$old_library" && func_append staticlibs " $dir/$old_library" - ;; - - *.lo) - # Install (i.e. copy) a libtool object. - - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile=$destdir/$destname - else - func_basename "$file" - destfile=$func_basename_result - destfile=$destdir/$destfile - fi - - # Deduce the name of the destination old-style object file. - case $destfile in - *.lo) - func_lo2o "$destfile" - staticdest=$func_lo2o_result - ;; - *.$objext) - staticdest=$destfile - destfile= - ;; - *) - func_fatal_help "cannot copy a libtool object to '$destfile'" - ;; - esac - - # Install the libtool object if requested. - test -n "$destfile" && \ - func_show_eval "$install_prog $file $destfile" 'exit $?' - - # Install the old object if enabled. - if test yes = "$build_old_libs"; then - # Deduce the name of the old-style object file. - func_lo2o "$file" - staticobj=$func_lo2o_result - func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' - fi - exit $EXIT_SUCCESS - ;; - - *) - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile=$destdir/$destname - else - func_basename "$file" - destfile=$func_basename_result - destfile=$destdir/$destfile - fi - - # If the file is missing, and there is a .exe on the end, strip it - # because it is most likely a libtool script we actually want to - # install - stripped_ext= - case $file in - *.exe) - if test ! -f "$file"; then - func_stripname '' '.exe' "$file" - file=$func_stripname_result - stripped_ext=.exe - fi - ;; - esac - - # Do a test to see if this is really a libtool program. - case $host in - *cygwin* | *mingw*) - if func_ltwrapper_executable_p "$file"; then - func_ltwrapper_scriptname "$file" - wrapper=$func_ltwrapper_scriptname_result - else - func_stripname '' '.exe' "$file" - wrapper=$func_stripname_result - fi - ;; - *) - wrapper=$file - ;; - esac - if func_ltwrapper_script_p "$wrapper"; then - notinst_deplibs= - relink_command= - - func_source "$wrapper" - - # Check the variables that should have been set. - test -z "$generated_by_libtool_version" && \ - func_fatal_error "invalid libtool wrapper script '$wrapper'" - - finalize=: - for lib in $notinst_deplibs; do - # Check to see that each library is installed. - libdir= - if test -f "$lib"; then - func_source "$lib" - fi - libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` - if test -n "$libdir" && test ! -f "$libfile"; then - func_warning "'$lib' has not been installed in '$libdir'" - finalize=false - fi - done - - relink_command= - func_source "$wrapper" - - outputname= - if test no = "$fast_install" && test -n "$relink_command"; then - $opt_dry_run || { - if $finalize; then - tmpdir=`func_mktempdir` - func_basename "$file$stripped_ext" - file=$func_basename_result - outputname=$tmpdir/$file - # Replace the output file specification. - relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` - - $opt_quiet || { - func_quote_for_expand "$relink_command" - eval "func_echo $func_quote_for_expand_result" - } - if eval "$relink_command"; then : - else - func_error "error: relink '$file' with the above command before installing it" - $opt_dry_run || ${RM}r "$tmpdir" - continue - fi - file=$outputname - else - func_warning "cannot relink '$file'" - fi - } - else - # Install the binary that we compiled earlier. - file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` - fi - fi - - # remove .exe since cygwin /usr/bin/install will append another - # one anyway - case $install_prog,$host in - */usr/bin/install*,*cygwin*) - case $file:$destfile in - *.exe:*.exe) - # this is ok - ;; - *.exe:*) - destfile=$destfile.exe - ;; - *:*.exe) - func_stripname '' '.exe' "$destfile" - destfile=$func_stripname_result - ;; - esac - ;; - esac - func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' - $opt_dry_run || if test -n "$outputname"; then - ${RM}r "$tmpdir" - fi - ;; - esac - done - - for file in $staticlibs; do - func_basename "$file" - name=$func_basename_result - - # Set up the ranlib parameters. - oldlib=$destdir/$name - func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 - tool_oldlib=$func_to_tool_file_result - - func_show_eval "$install_prog \$file \$oldlib" 'exit $?' - - if test -n "$stripme" && test -n "$old_striplib"; then - func_show_eval "$old_striplib $tool_oldlib" 'exit $?' - fi - - # Do each command in the postinstall commands. - func_execute_cmds "$old_postinstall_cmds" 'exit $?' - done - - test -n "$future_libdirs" && \ - func_warning "remember to run '$progname --finish$future_libdirs'" - - if test -n "$current_libdirs"; then - # Maybe just do a dry run. - $opt_dry_run && current_libdirs=" -n$current_libdirs" - exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' - else - exit $EXIT_SUCCESS - fi -} - -test install = "$opt_mode" && func_mode_install ${1+"$@"} - - -# func_generate_dlsyms outputname originator pic_p -# Extract symbols from dlprefiles and create ${outputname}S.o with -# a dlpreopen symbol table. -func_generate_dlsyms () -{ - $debug_cmd - - my_outputname=$1 - my_originator=$2 - my_pic_p=${3-false} - my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` - my_dlsyms= - - if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then - if test -n "$NM" && test -n "$global_symbol_pipe"; then - my_dlsyms=${my_outputname}S.c - else - func_error "not configured to extract global symbols from dlpreopened files" - fi - fi - - if test -n "$my_dlsyms"; then - case $my_dlsyms in - "") ;; - *.c) - # Discover the nlist of each of the dlfiles. - nlist=$output_objdir/$my_outputname.nm - - func_show_eval "$RM $nlist ${nlist}S ${nlist}T" - - # Parse the name list into a source file. - func_verbose "creating $output_objdir/$my_dlsyms" - - $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ -/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ -/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ - -#ifdef __cplusplus -extern \"C\" { -#endif - -#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) -#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" -#endif - -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE -/* DATA imports from DLLs on WIN32 can't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT_DLSYM_CONST -#elif defined __osf__ -/* This system does not cope well with relocations in const data. */ -# define LT_DLSYM_CONST -#else -# define LT_DLSYM_CONST const -#endif - -#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) - -/* External symbol declarations for the compiler. */\ -" - - if test yes = "$dlself"; then - func_verbose "generating symbol list for '$output'" - - $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" - - # Add our own program objects to the symbol list. - progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` - for progfile in $progfiles; do - func_to_tool_file "$progfile" func_convert_file_msys_to_w32 - func_verbose "extracting global C symbols from '$func_to_tool_file_result'" - $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" - done - - if test -n "$exclude_expsyms"; then - $opt_dry_run || { - eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - if test -n "$export_symbols_regex"; then - $opt_dry_run || { - eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - export_symbols=$output_objdir/$outputname.exp - $opt_dry_run || { - $RM $export_symbols - eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' - ;; - esac - } - else - $opt_dry_run || { - eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' - eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' - ;; - esac - } - fi - fi - - for dlprefile in $dlprefiles; do - func_verbose "extracting global C symbols from '$dlprefile'" - func_basename "$dlprefile" - name=$func_basename_result - case $host in - *cygwin* | *mingw* | *cegcc* ) - # if an import library, we need to obtain dlname - if func_win32_import_lib_p "$dlprefile"; then - func_tr_sh "$dlprefile" - eval "curr_lafile=\$libfile_$func_tr_sh_result" - dlprefile_dlbasename= - if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then - # Use subshell, to avoid clobbering current variable values - dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` - if test -n "$dlprefile_dlname"; then - func_basename "$dlprefile_dlname" - dlprefile_dlbasename=$func_basename_result - else - # no lafile. user explicitly requested -dlpreopen . - $sharedlib_from_linklib_cmd "$dlprefile" - dlprefile_dlbasename=$sharedlib_from_linklib_result - fi - fi - $opt_dry_run || { - if test -n "$dlprefile_dlbasename"; then - eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' - else - func_warning "Could not compute DLL name from $name" - eval '$ECHO ": $name " >> "$nlist"' - fi - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | - $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" - } - else # not an import lib - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - fi - ;; - *) - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - ;; - esac - done - - $opt_dry_run || { - # Make sure we have at least an empty file. - test -f "$nlist" || : > "$nlist" - - if test -n "$exclude_expsyms"; then - $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T - $MV "$nlist"T "$nlist" - fi - - # Try sorting and uniquifying the output. - if $GREP -v "^: " < "$nlist" | - if sort -k 3 /dev/null 2>&1; then - sort -k 3 - else - sort +2 - fi | - uniq > "$nlist"S; then - : - else - $GREP -v "^: " < "$nlist" > "$nlist"S - fi - - if test -f "$nlist"S; then - eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' - else - echo '/* NONE */' >> "$output_objdir/$my_dlsyms" - fi - - func_show_eval '$RM "${nlist}I"' - if test -n "$global_symbol_to_import"; then - eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' - fi - - echo >> "$output_objdir/$my_dlsyms" "\ - -/* The mapping between symbol names and symbols. */ -typedef struct { - const char *name; - void *address; -} lt_dlsymlist; -extern LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[];\ -" - - if test -s "$nlist"I; then - echo >> "$output_objdir/$my_dlsyms" "\ -static void lt_syminit(void) -{ - LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; - for (; symbol->name; ++symbol) - {" - $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" - echo >> "$output_objdir/$my_dlsyms" "\ - } -}" - fi - echo >> "$output_objdir/$my_dlsyms" "\ -LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[] = -{ {\"$my_originator\", (void *) 0}," - - if test -s "$nlist"I; then - echo >> "$output_objdir/$my_dlsyms" "\ - {\"@INIT@\", (void *) <_syminit}," - fi - - case $need_lib_prefix in - no) - eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - *) - eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - esac - echo >> "$output_objdir/$my_dlsyms" "\ - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt_${my_prefix}_LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif\ -" - } # !$opt_dry_run - - pic_flag_for_symtable= - case "$compile_command " in - *" -static "*) ;; - *) - case $host in - # compiling the symbol table file with pic_flag works around - # a FreeBSD bug that causes programs to crash when -lm is - # linked before any other PIC object. But we must not use - # pic_flag when linking with -static. The problem exists in - # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. - *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) - pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; - *-*-hpux*) - pic_flag_for_symtable=" $pic_flag" ;; - *) - $my_pic_p && pic_flag_for_symtable=" $pic_flag" - ;; - esac - ;; - esac - symtab_cflags= - for arg in $LTCFLAGS; do - case $arg in - -pie | -fpie | -fPIE) ;; - *) func_append symtab_cflags " $arg" ;; - esac - done - - # Now compile the dynamic symbol file. - func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' - - # Clean up the generated files. - func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' - - # Transform the symbol file into the correct name. - symfileobj=$output_objdir/${my_outputname}S.$objext - case $host in - *cygwin* | *mingw* | *cegcc* ) - if test -f "$output_objdir/$my_outputname.def"; then - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - else - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - fi - ;; - *) - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - ;; - esac - ;; - *) - func_fatal_error "unknown suffix for '$my_dlsyms'" - ;; - esac - else - # We keep going just in case the user didn't refer to - # lt_preloaded_symbols. The linker will fail if global_symbol_pipe - # really was required. - - # Nullify the symbol file. - compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` - fi -} - -# func_cygming_gnu_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is a GNU/binutils-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_gnu_implib_p () -{ - $debug_cmd - - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` - test -n "$func_cygming_gnu_implib_tmp" -} - -# func_cygming_ms_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is an MS-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_ms_implib_p () -{ - $debug_cmd - - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` - test -n "$func_cygming_ms_implib_tmp" -} - -# func_win32_libid arg -# return the library type of file 'arg' -# -# Need a lot of goo to handle *both* DLLs and import libs -# Has to be a shell function in order to 'eat' the argument -# that is supplied when $file_magic_command is called. -# Despite the name, also deal with 64 bit binaries. -func_win32_libid () -{ - $debug_cmd - - win32_libid_type=unknown - win32_fileres=`file -L $1 2>/dev/null` - case $win32_fileres in - *ar\ archive\ import\ library*) # definitely import - win32_libid_type="x86 archive import" - ;; - *ar\ archive*) # could be an import, or static - # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. - if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | - $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then - case $nm_interface in - "MS dumpbin") - if func_cygming_ms_implib_p "$1" || - func_cygming_gnu_implib_p "$1" - then - win32_nmres=import - else - win32_nmres= - fi - ;; - *) - func_to_tool_file "$1" func_convert_file_msys_to_w32 - win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | - $SED -n -e ' - 1,100{ - / I /{ - s|.*|import| - p - q - } - }'` - ;; - esac - case $win32_nmres in - import*) win32_libid_type="x86 archive import";; - *) win32_libid_type="x86 archive static";; - esac - fi - ;; - *DLL*) - win32_libid_type="x86 DLL" - ;; - *executable*) # but shell scripts are "executable" too... - case $win32_fileres in - *MS\ Windows\ PE\ Intel*) - win32_libid_type="x86 DLL" - ;; - esac - ;; - esac - $ECHO "$win32_libid_type" -} - -# func_cygming_dll_for_implib ARG -# -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib () -{ - $debug_cmd - - sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` -} - -# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs -# -# The is the core of a fallback implementation of a -# platform-specific function to extract the name of the -# DLL associated with the specified import library LIBNAME. -# -# SECTION_NAME is either .idata$6 or .idata$7, depending -# on the platform and compiler that created the implib. -# -# Echos the name of the DLL associated with the -# specified import library. -func_cygming_dll_for_implib_fallback_core () -{ - $debug_cmd - - match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` - $OBJDUMP -s --section "$1" "$2" 2>/dev/null | - $SED '/^Contents of section '"$match_literal"':/{ - # Place marker at beginning of archive member dllname section - s/.*/====MARK====/ - p - d - } - # These lines can sometimes be longer than 43 characters, but - # are always uninteresting - /:[ ]*file format pe[i]\{,1\}-/d - /^In archive [^:]*:/d - # Ensure marker is printed - /^====MARK====/p - # Remove all lines with less than 43 characters - /^.\{43\}/!d - # From remaining lines, remove first 43 characters - s/^.\{43\}//' | - $SED -n ' - # Join marker and all lines until next marker into a single line - /^====MARK====/ b para - H - $ b para - b - :para - x - s/\n//g - # Remove the marker - s/^====MARK====// - # Remove trailing dots and whitespace - s/[\. \t]*$// - # Print - /./p' | - # we now have a list, one entry per line, of the stringified - # contents of the appropriate section of all members of the - # archive that possess that section. Heuristic: eliminate - # all those that have a first or second character that is - # a '.' (that is, objdump's representation of an unprintable - # character.) This should work for all archives with less than - # 0x302f exports -- but will fail for DLLs whose name actually - # begins with a literal '.' or a single character followed by - # a '.'. - # - # Of those that remain, print the first one. - $SED -e '/^\./d;/^.\./d;q' -} - -# func_cygming_dll_for_implib_fallback ARG -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# -# This fallback implementation is for use when $DLLTOOL -# does not support the --identify-strict option. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib_fallback () -{ - $debug_cmd - - if func_cygming_gnu_implib_p "$1"; then - # binutils import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` - elif func_cygming_ms_implib_p "$1"; then - # ms-generated import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` - else - # unknown - sharedlib_from_linklib_result= - fi -} - - -# func_extract_an_archive dir oldlib -func_extract_an_archive () -{ - $debug_cmd - - f_ex_an_ar_dir=$1; shift - f_ex_an_ar_oldlib=$1 - if test yes = "$lock_old_archive_extraction"; then - lockfile=$f_ex_an_ar_oldlib.lock - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - fi - func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ - 'stat=$?; rm -f "$lockfile"; exit $stat' - if test yes = "$lock_old_archive_extraction"; then - $opt_dry_run || rm -f "$lockfile" - fi - if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then - : - else - func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" - fi -} - - -# func_extract_archives gentop oldlib ... -func_extract_archives () -{ - $debug_cmd - - my_gentop=$1; shift - my_oldlibs=${1+"$@"} - my_oldobjs= - my_xlib= - my_xabs= - my_xdir= - - for my_xlib in $my_oldlibs; do - # Extract the objects. - case $my_xlib in - [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; - *) my_xabs=`pwd`"/$my_xlib" ;; - esac - func_basename "$my_xlib" - my_xlib=$func_basename_result - my_xlib_u=$my_xlib - while :; do - case " $extracted_archives " in - *" $my_xlib_u "*) - func_arith $extracted_serial + 1 - extracted_serial=$func_arith_result - my_xlib_u=lt$extracted_serial-$my_xlib ;; - *) break ;; - esac - done - extracted_archives="$extracted_archives $my_xlib_u" - my_xdir=$my_gentop/$my_xlib_u - - func_mkdir_p "$my_xdir" - - case $host in - *-darwin*) - func_verbose "Extracting $my_xabs" - # Do not bother doing anything if just a dry run - $opt_dry_run || { - darwin_orig_dir=`pwd` - cd $my_xdir || exit $? - darwin_archive=$my_xabs - darwin_curdir=`pwd` - func_basename "$darwin_archive" - darwin_base_archive=$func_basename_result - darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` - if test -n "$darwin_arches"; then - darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` - darwin_arch= - func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" - for darwin_arch in $darwin_arches; do - func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" - $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" - cd "unfat-$$/$darwin_base_archive-$darwin_arch" - func_extract_an_archive "`pwd`" "$darwin_base_archive" - cd "$darwin_curdir" - $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" - done # $darwin_arches - ## Okay now we've a bunch of thin objects, gotta fatten them up :) - darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` - darwin_file= - darwin_files= - for darwin_file in $darwin_filelist; do - darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` - $LIPO -create -output "$darwin_file" $darwin_files - done # $darwin_filelist - $RM -rf unfat-$$ - cd "$darwin_orig_dir" - else - cd $darwin_orig_dir - func_extract_an_archive "$my_xdir" "$my_xabs" - fi # $darwin_arches - } # !$opt_dry_run - ;; - *) - func_extract_an_archive "$my_xdir" "$my_xabs" - ;; - esac - my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` - done - - func_extract_archives_result=$my_oldobjs -} - - -# func_emit_wrapper [arg=no] -# -# Emit a libtool wrapper script on stdout. -# Don't directly open a file because we may want to -# incorporate the script contents within a cygwin/mingw -# wrapper executable. 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Do this before prepending - # to shlibpath, because on Windows, both are PATH and uninstalled - # libraries must come first. - if test -n "$dllsearchpath"; then - $ECHO "\ - # Add the dll search path components to the executable PATH - PATH=$dllsearchpath:\$PATH -" - fi - - # Export our shlibpath_var if we have one. - if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then - $ECHO "\ - # Add our own library path to $shlibpath_var - $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" - - # Some systems cannot cope with colon-terminated $shlibpath_var - # The second colon is a workaround for a bug in BeOS R4 sed - $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` - - export $shlibpath_var -" - fi - - $ECHO "\ - if test \"\$libtool_execute_magic\" != \"$magic\"; then - # Run the actual program with our arguments. - func_exec_program \${1+\"\$@\"} - fi - else - # The program doesn't exist. - \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 - \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 - \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 - exit 1 - fi -fi\ -" -} - - -# func_emit_cwrapperexe_src -# emit the source code for a wrapper executable on stdout -# Must ONLY be called from within func_mode_link because -# it depends on a number of variable set therein. -func_emit_cwrapperexe_src () -{ - cat < -#include -#ifdef _MSC_VER -# include -# include -# include -#else -# include -# include -# ifdef __CYGWIN__ -# include -# endif -#endif -#include -#include -#include -#include -#include -#include -#include -#include - -#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) - -/* declarations of non-ANSI functions */ -#if defined __MINGW32__ -# ifdef __STRICT_ANSI__ -int _putenv (const char *); -# endif -#elif defined __CYGWIN__ -# ifdef __STRICT_ANSI__ -char *realpath (const char *, char *); -int putenv (char *); -int setenv (const char *, const char *, int); -# endif -/* #elif defined other_platform || defined ... */ -#endif - -/* portability defines, excluding path handling macros */ -#if defined _MSC_VER -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -# define S_IXUSR _S_IEXEC -#elif defined __MINGW32__ -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -#elif defined __CYGWIN__ -# define HAVE_SETENV -# define FOPEN_WB "wb" -/* #elif defined other platforms ... */ -#endif - -#if defined PATH_MAX -# define LT_PATHMAX PATH_MAX -#elif defined MAXPATHLEN -# define LT_PATHMAX MAXPATHLEN -#else -# define LT_PATHMAX 1024 -#endif - -#ifndef S_IXOTH -# define S_IXOTH 0 -#endif -#ifndef S_IXGRP -# define S_IXGRP 0 -#endif - -/* path handling portability macros */ -#ifndef DIR_SEPARATOR -# define DIR_SEPARATOR '/' -# define PATH_SEPARATOR ':' -#endif - -#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ - defined __OS2__ -# define HAVE_DOS_BASED_FILE_SYSTEM -# define FOPEN_WB "wb" -# ifndef DIR_SEPARATOR_2 -# define DIR_SEPARATOR_2 '\\' -# endif -# ifndef PATH_SEPARATOR_2 -# define PATH_SEPARATOR_2 ';' -# endif -#endif - -#ifndef DIR_SEPARATOR_2 -# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) -#else /* DIR_SEPARATOR_2 */ -# define IS_DIR_SEPARATOR(ch) \ - (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) -#endif /* DIR_SEPARATOR_2 */ - -#ifndef PATH_SEPARATOR_2 -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) -#else /* PATH_SEPARATOR_2 */ -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) -#endif /* PATH_SEPARATOR_2 */ - -#ifndef FOPEN_WB -# define FOPEN_WB "w" -#endif -#ifndef _O_BINARY -# define _O_BINARY 0 -#endif - -#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) -#define XFREE(stale) do { \ - if (stale) { free (stale); stale = 0; } \ -} while (0) - -#if defined LT_DEBUGWRAPPER -static int lt_debug = 1; -#else -static int lt_debug = 0; -#endif - -const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ - -void *xmalloc (size_t num); -char *xstrdup (const char *string); -const char *base_name (const char *name); -char *find_executable (const char *wrapper); -char *chase_symlinks (const char *pathspec); -int make_executable (const char *path); -int check_executable (const char *path); -char *strendzap (char *str, const char *pat); -void lt_debugprintf (const char *file, int line, const char *fmt, ...); -void lt_fatal (const char *file, int line, const char *message, ...); -static const char *nonnull (const char *s); -static const char *nonempty (const char *s); -void lt_setenv (const char *name, const char *value); -char *lt_extend_str (const char *orig_value, const char *add, int to_end); -void lt_update_exe_path (const char *name, const char *value); -void lt_update_lib_path (const char *name, const char *value); -char **prepare_spawn (char **argv); -void lt_dump_script (FILE *f); -EOF - - cat <= 0) - && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) - return 1; - else - return 0; -} - -int -make_executable (const char *path) -{ - int rval = 0; - struct stat st; - - lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", - nonempty (path)); - if ((!path) || (!*path)) - return 0; - - if (stat (path, &st) >= 0) - { - rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); - } - return rval; -} - -/* Searches for the full path of the wrapper. Returns - newly allocated full path name if found, NULL otherwise - Does not chase symlinks, even on platforms that support them. -*/ -char * -find_executable (const char *wrapper) -{ - int has_slash = 0; - const char *p; - const char *p_next; - /* static buffer for getcwd */ - char tmp[LT_PATHMAX + 1]; - size_t tmp_len; - char *concat_name; - - lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", - nonempty (wrapper)); - - if ((wrapper == NULL) || (*wrapper == '\0')) - return NULL; - - /* Absolute path? */ -#if defined HAVE_DOS_BASED_FILE_SYSTEM - if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - else - { -#endif - if (IS_DIR_SEPARATOR (wrapper[0])) - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } -#if defined HAVE_DOS_BASED_FILE_SYSTEM - } -#endif - - for (p = wrapper; *p; p++) - if (*p == '/') - { - has_slash = 1; - break; - } - if (!has_slash) - { - /* no slashes; search PATH */ - const char *path = getenv ("PATH"); - if (path != NULL) - { - for (p = path; *p; p = p_next) - { - const char *q; - size_t p_len; - for (q = p; *q; q++) - if (IS_PATH_SEPARATOR (*q)) - break; - p_len = (size_t) (q - p); - p_next = (*q == '\0' ? q : q + 1); - if (p_len == 0) - { - /* empty path: current directory */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = - XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - } - else - { - concat_name = - XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, p, p_len); - concat_name[p_len] = '/'; - strcpy (concat_name + p_len + 1, wrapper); - } - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - } - /* not found in PATH; assume curdir */ - } - /* Relative path | not found in path: prepend cwd */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - return NULL; -} - -char * -chase_symlinks (const char *pathspec) -{ -#ifndef S_ISLNK - return xstrdup (pathspec); -#else - char buf[LT_PATHMAX]; - struct stat s; - char *tmp_pathspec = xstrdup (pathspec); - char *p; - int has_symlinks = 0; - while (strlen (tmp_pathspec) && !has_symlinks) - { - lt_debugprintf (__FILE__, __LINE__, - "checking path component for symlinks: %s\n", - tmp_pathspec); - if (lstat (tmp_pathspec, &s) == 0) - { - if (S_ISLNK (s.st_mode) != 0) - { - has_symlinks = 1; - break; - } - - /* search backwards for last DIR_SEPARATOR */ - p = tmp_pathspec + strlen (tmp_pathspec) - 1; - while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - p--; - if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - { - /* no more DIR_SEPARATORS left */ - break; - } - *p = '\0'; - } - else - { - lt_fatal (__FILE__, __LINE__, - "error accessing file \"%s\": %s", - tmp_pathspec, nonnull (strerror (errno))); - } - } - XFREE (tmp_pathspec); - - if (!has_symlinks) - { - return xstrdup (pathspec); - } - - tmp_pathspec = realpath (pathspec, buf); - if (tmp_pathspec == 0) - { - lt_fatal (__FILE__, __LINE__, - "could not follow symlinks for %s", pathspec); - } - return xstrdup (tmp_pathspec); -#endif -} - -char * -strendzap (char *str, const char *pat) -{ - size_t len, patlen; - - assert (str != NULL); - assert (pat != NULL); - - len = strlen (str); - patlen = strlen (pat); - - if (patlen <= len) - { - str += len - patlen; - if (STREQ (str, pat)) - *str = '\0'; - } - return str; -} - -void -lt_debugprintf (const char *file, int line, const char *fmt, ...) -{ - va_list args; - if (lt_debug) - { - (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); - va_start (args, fmt); - (void) vfprintf (stderr, fmt, args); - va_end (args); - } -} - -static void -lt_error_core (int exit_status, const char *file, - int line, const char *mode, - const char *message, va_list ap) -{ - fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); - vfprintf (stderr, message, ap); - fprintf (stderr, ".\n"); - - if (exit_status >= 0) - exit (exit_status); -} - -void -lt_fatal (const char *file, int line, const char *message, ...) -{ - va_list ap; - va_start (ap, message); - lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); - va_end (ap); -} - -static const char * -nonnull (const char *s) -{ - return s ? s : "(null)"; -} - -static const char * -nonempty (const char *s) -{ - return (s && !*s) ? "(empty)" : nonnull (s); -} - -void -lt_setenv (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_setenv) setting '%s' to '%s'\n", - nonnull (name), nonnull (value)); - { -#ifdef HAVE_SETENV - /* always make a copy, for consistency with !HAVE_SETENV */ - char *str = xstrdup (value); - setenv (name, str, 1); -#else - size_t len = strlen (name) + 1 + strlen (value) + 1; - char *str = XMALLOC (char, len); - sprintf (str, "%s=%s", name, value); - if (putenv (str) != EXIT_SUCCESS) - { - XFREE (str); - } -#endif - } -} - -char * -lt_extend_str (const char *orig_value, const char *add, int to_end) -{ - char *new_value; - if (orig_value && *orig_value) - { - size_t orig_value_len = strlen (orig_value); - size_t add_len = strlen (add); - new_value = XMALLOC (char, add_len + orig_value_len + 1); - if (to_end) - { - strcpy (new_value, orig_value); - strcpy (new_value + orig_value_len, add); - } - else - { - strcpy (new_value, add); - strcpy (new_value + add_len, orig_value); - } - } - else - { - new_value = xstrdup (add); - } - return new_value; -} - -void -lt_update_exe_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - /* some systems can't cope with a ':'-terminated path #' */ - size_t len = strlen (new_value); - while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) - { - new_value[--len] = '\0'; - } - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -void -lt_update_lib_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -EOF - case $host_os in - mingw*) - cat <<"EOF" - -/* Prepares an argument vector before calling spawn(). - Note that spawn() does not by itself call the command interpreter - (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : - ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&v); - v.dwPlatformId == VER_PLATFORM_WIN32_NT; - }) ? "cmd.exe" : "command.com"). - Instead it simply concatenates the arguments, separated by ' ', and calls - CreateProcess(). We must quote the arguments since Win32 CreateProcess() - interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a - special way: - - Space and tab are interpreted as delimiters. They are not treated as - delimiters if they are surrounded by double quotes: "...". - - Unescaped double quotes are removed from the input. Their only effect is - that within double quotes, space and tab are treated like normal - characters. - - Backslashes not followed by double quotes are not special. - - But 2*n+1 backslashes followed by a double quote become - n backslashes followed by a double quote (n >= 0): - \" -> " - \\\" -> \" - \\\\\" -> \\" - */ -#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -char ** -prepare_spawn (char **argv) -{ - size_t argc; - char **new_argv; - size_t i; - - /* Count number of arguments. */ - for (argc = 0; argv[argc] != NULL; argc++) - ; - - /* Allocate new argument vector. */ - new_argv = XMALLOC (char *, argc + 1); - - /* Put quoted arguments into the new argument vector. */ - for (i = 0; i < argc; i++) - { - const char *string = argv[i]; - - if (string[0] == '\0') - new_argv[i] = xstrdup ("\"\""); - else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) - { - int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); - size_t length; - unsigned int backslashes; - const char *s; - char *quoted_string; - char *p; - - length = 0; - backslashes = 0; - if (quote_around) - length++; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - length += backslashes + 1; - length++; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - length += backslashes + 1; - - quoted_string = XMALLOC (char, length + 1); - - p = quoted_string; - backslashes = 0; - if (quote_around) - *p++ = '"'; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - { - unsigned int j; - for (j = backslashes + 1; j > 0; j--) - *p++ = '\\'; - } - *p++ = c; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - { - unsigned int j; - for (j = backslashes; j > 0; j--) - *p++ = '\\'; - *p++ = '"'; - } - *p = '\0'; - - new_argv[i] = quoted_string; - } - else - new_argv[i] = (char *) string; - } - new_argv[argc] = NULL; - - return new_argv; -} -EOF - ;; - esac - - cat <<"EOF" -void lt_dump_script (FILE* f) -{ -EOF - func_emit_wrapper yes | - $SED -n -e ' -s/^\(.\{79\}\)\(..*\)/\1\ -\2/ -h -s/\([\\"]\)/\\\1/g -s/$/\\n/ -s/\([^\n]*\).*/ fputs ("\1", f);/p -g -D' - cat <<"EOF" -} -EOF -} -# end: func_emit_cwrapperexe_src - -# func_win32_import_lib_p ARG -# True if ARG is an import lib, as indicated by $file_magic_cmd -func_win32_import_lib_p () -{ - $debug_cmd - - case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in - *import*) : ;; - *) false ;; - esac -} - -# func_suncc_cstd_abi -# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! -# Several compiler flags select an ABI that is incompatible with the -# Cstd library. Avoid specifying it if any are in CXXFLAGS. -func_suncc_cstd_abi () -{ - $debug_cmd - - case " $compile_command " in - *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) - suncc_use_cstd_abi=no - ;; - *) - suncc_use_cstd_abi=yes - ;; - esac -} - -# func_mode_link arg... -func_mode_link () -{ - $debug_cmd - - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - # It is impossible to link a dll without this setting, and - # we shouldn't force the makefile maintainer to figure out - # what system we are compiling for in order to pass an extra - # flag for every libtool invocation. - # allow_undefined=no - - # FIXME: Unfortunately, there are problems with the above when trying - # to make a dll that has undefined symbols, in which case not - # even a static library is built. For now, we need to specify - # -no-undefined on the libtool link line when we can be certain - # that all symbols are satisfied, otherwise we get a static library. - allow_undefined=yes - ;; - *) - allow_undefined=yes - ;; - esac - libtool_args=$nonopt - base_compile="$nonopt $@" - compile_command=$nonopt - finalize_command=$nonopt - - compile_rpath= - finalize_rpath= - compile_shlibpath= - finalize_shlibpath= - convenience= - old_convenience= - deplibs= - old_deplibs= - compiler_flags= - linker_flags= - dllsearchpath= - lib_search_path=`pwd` - inst_prefix_dir= - new_inherited_linker_flags= - - avoid_version=no - bindir= - dlfiles= - dlprefiles= - dlself=no - export_dynamic=no - export_symbols= - export_symbols_regex= - generated= - libobjs= - ltlibs= - module=no - no_install=no - objs= - os2dllname= - non_pic_objects= - precious_files_regex= - prefer_static_libs=no - preload=false - prev= - prevarg= - release= - rpath= - xrpath= - perm_rpath= - temp_rpath= - thread_safe=no - vinfo= - vinfo_number=no - weak_libs= - single_module=$wl-single_module - func_infer_tag $base_compile - - # We need to know -static, to get the right output filenames. - for arg - do - case $arg in - -shared) - test yes != "$build_libtool_libs" \ - && func_fatal_configuration "cannot build a shared library" - build_old_libs=no - break - ;; - -all-static | -static | -static-libtool-libs) - case $arg in - -all-static) - if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then - func_warning "complete static linking is impossible in this configuration" - fi - if test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=yes - ;; - -static) - if test -z "$pic_flag" && test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=built - ;; - -static-libtool-libs) - if test -z "$pic_flag" && test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=yes - ;; - esac - build_libtool_libs=no - build_old_libs=yes - break - ;; - esac - done - - # See if our shared archives depend on static archives. - test -n "$old_archive_from_new_cmds" && build_old_libs=yes - - # Go through the arguments, transforming them on the way. - while test "$#" -gt 0; do - arg=$1 - shift - func_quote_for_eval "$arg" - qarg=$func_quote_for_eval_unquoted_result - func_append libtool_args " $func_quote_for_eval_result" - - # If the previous option needs an argument, assign it. - if test -n "$prev"; then - case $prev in - output) - func_append compile_command " @OUTPUT@" - func_append finalize_command " @OUTPUT@" - ;; - esac - - case $prev in - bindir) - bindir=$arg - prev= - continue - ;; - dlfiles|dlprefiles) - $preload || { - # Add the symbol object into the linking commands. - func_append compile_command " @SYMFILE@" - func_append finalize_command " @SYMFILE@" - preload=: - } - case $arg in - *.la | *.lo) ;; # We handle these cases below. - force) - if test no = "$dlself"; then - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - self) - if test dlprefiles = "$prev"; then - dlself=yes - elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then - dlself=yes - else - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - *) - if test dlfiles = "$prev"; then - func_append dlfiles " $arg" - else - func_append dlprefiles " $arg" - fi - prev= - continue - ;; - esac - ;; - expsyms) - export_symbols=$arg - test -f "$arg" \ - || func_fatal_error "symbol file '$arg' does not exist" - prev= - continue - ;; - expsyms_regex) - export_symbols_regex=$arg - prev= - continue - ;; - framework) - case $host in - *-*-darwin*) - case "$deplibs " in - *" $qarg.ltframework "*) ;; - *) func_append deplibs " $qarg.ltframework" # this is fixed later - ;; - esac - ;; - esac - prev= - continue - ;; - inst_prefix) - inst_prefix_dir=$arg - prev= - continue - ;; - mllvm) - # Clang does not use LLVM to link, so we can simply discard any - # '-mllvm $arg' options when doing the link step. - prev= - continue - ;; - objectlist) - if test -f "$arg"; then - save_arg=$arg - moreargs= - for fil in `cat "$save_arg"` - do -# func_append moreargs " $fil" - arg=$fil - # A libtool-controlled object. - - # Check to see that this really is a libtool object. - if func_lalib_unsafe_p "$arg"; then - pic_object= - non_pic_object= - - # Read the .lo file - func_source "$arg" - - if test -z "$pic_object" || - test -z "$non_pic_object" || - test none = "$pic_object" && - test none = "$non_pic_object"; then - func_fatal_error "cannot find name of object for '$arg'" - fi - - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir=$func_dirname_result - - if test none != "$pic_object"; then - # Prepend the subdirectory the object is found in. - pic_object=$xdir$pic_object - - if test dlfiles = "$prev"; then - if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then - func_append dlfiles " $pic_object" - prev= - continue - else - # If libtool objects are unsupported, then we need to preload. - prev=dlprefiles - fi - fi - - # CHECK ME: I think I busted this. -Ossama - if test dlprefiles = "$prev"; then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg=$pic_object - fi - - # Non-PIC object. - if test none != "$non_pic_object"; then - # Prepend the subdirectory the object is found in. - non_pic_object=$xdir$non_pic_object - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test none = "$pic_object"; then - arg=$non_pic_object - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object=$pic_object - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; 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then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -l*) - if test lib != "$linkmode" && test prog != "$linkmode"; then - func_warning "'-l' is ignored for archives/objects" - continue - fi - func_stripname '-l' '' "$deplib" - name=$func_stripname_result - if test lib = "$linkmode"; then - searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" - else - searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" - fi - for searchdir in $searchdirs; do - for search_ext in .la $std_shrext .so .a; do - # Search the libtool library - lib=$searchdir/lib$name$search_ext - if test -f "$lib"; then - if test .la = "$search_ext"; then - found=: - else - found=false - fi - break 2 - fi - done - done - if $found; then - # deplib is a libtool library - # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, - # We need to do some special things here, and not later. - if test yes = "$allow_libtool_libs_with_static_runtimes"; then - case " $predeps $postdeps " in - *" $deplib "*) - if func_lalib_p "$lib"; then - library_names= - old_library= - func_source "$lib" - for l in $old_library $library_names; do - ll=$l - done - if test "X$ll" = "X$old_library"; then # only static version available - found=false - func_dirname "$lib" "" "." - ladir=$func_dirname_result - lib=$ladir/$old_library - if test prog,link = "$linkmode,$pass"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" - fi - continue - fi - fi - ;; - *) ;; - esac - fi - else - # deplib doesn't seem to be a libtool library - if test prog,link = "$linkmode,$pass"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" - fi - continue - fi - ;; # -l - *.ltframework) - if test prog,link = "$linkmode,$pass"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - if test lib = "$linkmode"; then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -L*) - case $linkmode in - lib) - deplibs="$deplib $deplibs" - test conv = "$pass" && continue - newdependency_libs="$deplib $newdependency_libs" - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - prog) - if test conv = "$pass"; then - deplibs="$deplib $deplibs" - continue - fi - if test scan = "$pass"; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - *) - func_warning "'-L' is ignored for archives/objects" - ;; - esac # linkmode - continue - ;; # -L - -R*) - if test link = "$pass"; then - func_stripname '-R' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - dir=$func_resolve_sysroot_result - # Make sure the xrpath contains only unique directories. - case "$xrpath " in - *" $dir "*) ;; - *) func_append xrpath " $dir" ;; - esac - fi - deplibs="$deplib $deplibs" - continue - ;; - *.la) - func_resolve_sysroot "$deplib" - lib=$func_resolve_sysroot_result - ;; - *.$libext) - if test conv = "$pass"; then - deplibs="$deplib $deplibs" - continue - fi - case $linkmode in - lib) - # Linking convenience modules into shared libraries is allowed, - # but linking other static libraries is non-portable. - case " $dlpreconveniencelibs " in - *" $deplib "*) ;; - *) - valid_a_lib=false - case $deplibs_check_method in - match_pattern*) - set dummy $deplibs_check_method; shift - match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` - if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ - | $EGREP "$match_pattern_regex" > /dev/null; then - valid_a_lib=: - fi - ;; - pass_all) - valid_a_lib=: - ;; - esac - if $valid_a_lib; then - echo - $ECHO "*** Warning: Linking the shared library $output against the" - $ECHO "*** static library $deplib is not portable!" - deplibs="$deplib $deplibs" - else - echo - $ECHO "*** Warning: Trying to link with static lib archive $deplib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. But I can only do this if you have a" - echo "*** shared version of the library, which you do not appear to have" - echo "*** because the file extensions .$libext of this argument makes me believe" - echo "*** that it is just a static archive that I should not use here." - fi - ;; - esac - continue - ;; - prog) - if test link != "$pass"; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - continue - ;; - esac # linkmode - ;; # *.$libext - *.lo | *.$objext) - if test conv = "$pass"; then - deplibs="$deplib $deplibs" - elif test prog = "$linkmode"; then - if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then - # If there is no dlopen support or we're linking statically, - # we need to preload. - func_append newdlprefiles " $deplib" - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - func_append newdlfiles " $deplib" - fi - fi - continue - ;; - %DEPLIBS%) - alldeplibs=: - continue - ;; - esac # case $deplib - - $found || test -f "$lib" \ - || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$lib" \ - || func_fatal_error "'$lib' is not a valid libtool archive" - - func_dirname "$lib" "" "." - ladir=$func_dirname_result - - dlname= - dlopen= - dlpreopen= - libdir= - library_names= - old_library= - inherited_linker_flags= - # If the library was installed with an old release of libtool, - # it will not redefine variables installed, or shouldnotlink - installed=yes - shouldnotlink=no - avoidtemprpath= - - - # Read the .la file - func_source "$lib" - - # Convert "-framework foo" to "foo.ltframework" - if test -n "$inherited_linker_flags"; then - tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` - for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do - case " $new_inherited_linker_flags " in - *" $tmp_inherited_linker_flag "*) ;; - *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; - esac - done - fi - dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - if test lib,link = "$linkmode,$pass" || - test prog,scan = "$linkmode,$pass" || - { test prog != "$linkmode" && test lib != "$linkmode"; }; then - test -n "$dlopen" && func_append dlfiles " $dlopen" - test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" - fi - - if test conv = "$pass"; then - # Only check for convenience libraries - deplibs="$lib $deplibs" - if test -z "$libdir"; then - if test -z "$old_library"; then - func_fatal_error "cannot find name of link library for '$lib'" - fi - # It is a libtool convenience library, so add in its objects. - func_append convenience " $ladir/$objdir/$old_library" - func_append old_convenience " $ladir/$objdir/$old_library" - elif test prog != "$linkmode" && test lib != "$linkmode"; then - func_fatal_error "'$lib' is not a convenience library" - fi - tmp_libs= - for deplib in $dependency_libs; do - deplibs="$deplib $deplibs" - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done - continue - fi # $pass = conv - - - # Get the name of the library we link against. - linklib= - if test -n "$old_library" && - { test yes = "$prefer_static_libs" || - test built,no = "$prefer_static_libs,$installed"; }; then - linklib=$old_library - else - for l in $old_library $library_names; do - linklib=$l - done - fi - if test -z "$linklib"; then - func_fatal_error "cannot find name of link library for '$lib'" - fi - - # This library was specified with -dlopen. - if test dlopen = "$pass"; then - test -z "$libdir" \ - && func_fatal_error "cannot -dlopen a convenience library: '$lib'" - if test -z "$dlname" || - test yes != "$dlopen_support" || - test no = "$build_libtool_libs" - then - # If there is no dlname, no dlopen support or we're linking - # statically, we need to preload. We also need to preload any - # dependent libraries so libltdl's deplib preloader doesn't - # bomb out in the load deplibs phase. - func_append dlprefiles " $lib $dependency_libs" - else - func_append newdlfiles " $lib" - fi - continue - fi # $pass = dlopen - - # We need an absolute path. - case $ladir in - [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; - *) - abs_ladir=`cd "$ladir" && pwd` - if test -z "$abs_ladir"; then - func_warning "cannot determine absolute directory name of '$ladir'" - func_warning "passing it literally to the linker, although it might fail" - abs_ladir=$ladir - fi - ;; - esac - func_basename "$lib" - laname=$func_basename_result - - # Find the relevant object directory and library name. - if test yes = "$installed"; then - if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then - func_warning "library '$lib' was moved." - dir=$ladir - absdir=$abs_ladir - libdir=$abs_ladir - else - dir=$lt_sysroot$libdir - absdir=$lt_sysroot$libdir - fi - test yes = "$hardcode_automatic" && avoidtemprpath=yes - else - if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then - dir=$ladir - absdir=$abs_ladir - # Remove this search path later - func_append notinst_path " $abs_ladir" - else - dir=$ladir/$objdir - absdir=$abs_ladir/$objdir - # Remove this search path later - func_append notinst_path " $abs_ladir" - fi - fi # $installed = yes - func_stripname 'lib' '.la' "$laname" - name=$func_stripname_result - - # This library was specified with -dlpreopen. - if test dlpreopen = "$pass"; then - if test -z "$libdir" && test prog = "$linkmode"; then - func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" - fi - case $host in - # special handling for platforms with PE-DLLs. - *cygwin* | *mingw* | *cegcc* ) - # Linker will automatically link against shared library if both - # static and shared are present. Therefore, ensure we extract - # symbols from the import library if a shared library is present - # (otherwise, the dlopen module name will be incorrect). We do - # this by putting the import library name into $newdlprefiles. - # We recover the dlopen module name by 'saving' the la file - # name in a special purpose variable, and (later) extracting the - # dlname from the la file. - if test -n "$dlname"; then - func_tr_sh "$dir/$linklib" - eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" - func_append newdlprefiles " $dir/$linklib" - else - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - fi - ;; - * ) - # Prefer using a static library (so that no silly _DYNAMIC symbols - # are required to link). - if test -n "$old_library"; then - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - # Otherwise, use the dlname, so that lt_dlopen finds it. - elif test -n "$dlname"; then - func_append newdlprefiles " $dir/$dlname" - else - func_append newdlprefiles " $dir/$linklib" - fi - ;; - esac - fi # $pass = dlpreopen - - if test -z "$libdir"; then - # Link the convenience library - if test lib = "$linkmode"; then - deplibs="$dir/$old_library $deplibs" - elif test prog,link = "$linkmode,$pass"; then - compile_deplibs="$dir/$old_library $compile_deplibs" - finalize_deplibs="$dir/$old_library $finalize_deplibs" - else - deplibs="$lib $deplibs" # used for prog,scan pass - fi - continue - fi - - - if test prog = "$linkmode" && test link != "$pass"; then - func_append newlib_search_path " $ladir" - deplibs="$lib $deplibs" - - linkalldeplibs=false - if test no != "$link_all_deplibs" || test -z "$library_names" || - test no = "$build_libtool_libs"; then - linkalldeplibs=: - fi - - tmp_libs= - for deplib in $dependency_libs; do - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - esac - # Need to link against all dependency_libs? - if $linkalldeplibs; then - deplibs="$deplib $deplibs" - else - # Need to hardcode shared library paths - # or/and link against static libraries - newdependency_libs="$deplib $newdependency_libs" - fi - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done # for deplib - continue - fi # $linkmode = prog... - - if test prog,link = "$linkmode,$pass"; then - if test -n "$library_names" && - { { test no = "$prefer_static_libs" || - test built,yes = "$prefer_static_libs,$installed"; } || - test -z "$old_library"; }; then - # We need to hardcode the library path - if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then - # Make sure the rpath contains only unique directories. - case $temp_rpath: in - *"$absdir:"*) ;; - *) func_append temp_rpath "$absdir:" ;; - esac - fi - - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi # $linkmode,$pass = prog,link... - - if $alldeplibs && - { test pass_all = "$deplibs_check_method" || - { test yes = "$build_libtool_libs" && - test -n "$library_names"; }; }; then - # We only need to search for static libraries - continue - fi - fi - - link_static=no # Whether the deplib will be linked statically - use_static_libs=$prefer_static_libs - if test built = "$use_static_libs" && test yes = "$installed"; then - use_static_libs=no - fi - if test -n "$library_names" && - { test no = "$use_static_libs" || test -z "$old_library"; }; then - case $host in - *cygwin* | *mingw* | *cegcc* | *os2*) - # No point in relinking DLLs because paths are not encoded - func_append notinst_deplibs " $lib" - need_relink=no - ;; - *) - if test no = "$installed"; then - func_append notinst_deplibs " $lib" - need_relink=yes - fi - ;; - esac - # This is a shared library - - # Warn about portability, can't link against -module's on some - # systems (darwin). Don't bleat about dlopened modules though! - dlopenmodule= - for dlpremoduletest in $dlprefiles; do - if test "X$dlpremoduletest" = "X$lib"; then - dlopenmodule=$dlpremoduletest - break - fi - done - if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then - echo - if test prog = "$linkmode"; then - $ECHO "*** Warning: Linking the executable $output against the loadable module" - else - $ECHO "*** Warning: Linking the shared library $output against the loadable module" - fi - $ECHO "*** $linklib is not portable!" - fi - if test lib = "$linkmode" && - test yes = "$hardcode_into_libs"; then - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi - - if test -n "$old_archive_from_expsyms_cmds"; then - # figure out the soname - set dummy $library_names - shift - realname=$1 - shift - libname=`eval "\\$ECHO \"$libname_spec\""` - # use dlname if we got it. it's perfectly good, no? - if test -n "$dlname"; then - soname=$dlname - elif test -n "$soname_spec"; then - # bleh windows - case $host in - *cygwin* | mingw* | *cegcc* | *os2*) - func_arith $current - $age - major=$func_arith_result - versuffix=-$major - ;; - esac - eval soname=\"$soname_spec\" - else - soname=$realname - fi - - # Make a new name for the extract_expsyms_cmds to use - soroot=$soname - func_basename "$soroot" - soname=$func_basename_result - func_stripname 'lib' '.dll' "$soname" - newlib=libimp-$func_stripname_result.a - - # If the library has no export list, then create one now - if test -f "$output_objdir/$soname-def"; then : - else - func_verbose "extracting exported symbol list from '$soname'" - func_execute_cmds "$extract_expsyms_cmds" 'exit $?' - fi - - # Create $newlib - if test -f "$output_objdir/$newlib"; then :; else - func_verbose "generating import library for '$soname'" - func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' - fi - # make sure the library variables are pointing to the new library - dir=$output_objdir - linklib=$newlib - fi # test -n "$old_archive_from_expsyms_cmds" - - if test prog = "$linkmode" || test relink != "$opt_mode"; then - add_shlibpath= - add_dir= - add= - lib_linked=yes - case $hardcode_action in - immediate | unsupported) - if test no = "$hardcode_direct"; then - add=$dir/$linklib - case $host in - *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; - *-*-sysv4*uw2*) add_dir=-L$dir ;; - *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ - *-*-unixware7*) add_dir=-L$dir ;; - *-*-darwin* ) - # if the lib is a (non-dlopened) module then we cannot - # link against it, someone is ignoring the earlier warnings - if /usr/bin/file -L $add 2> /dev/null | - $GREP ": [^:]* bundle" >/dev/null; then - if test "X$dlopenmodule" != "X$lib"; then - $ECHO "*** Warning: lib $linklib is a module, not a shared library" - if test -z "$old_library"; then - echo - echo "*** And there doesn't seem to be a static archive available" - echo "*** The link will probably fail, sorry" - else - add=$dir/$old_library - fi - elif test -n "$old_library"; then - add=$dir/$old_library - fi - fi - esac - elif test no = "$hardcode_minus_L"; then - case $host in - *-*-sunos*) add_shlibpath=$dir ;; - esac - add_dir=-L$dir - add=-l$name - elif test no = "$hardcode_shlibpath_var"; then - add_shlibpath=$dir - add=-l$name - else - lib_linked=no - fi - ;; - relink) - if test yes = "$hardcode_direct" && - test no = "$hardcode_direct_absolute"; then - add=$dir/$linklib - elif test yes = "$hardcode_minus_L"; then - add_dir=-L$absdir - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add=-l$name - elif test yes = "$hardcode_shlibpath_var"; then - add_shlibpath=$dir - add=-l$name - else - lib_linked=no - fi - ;; - *) lib_linked=no ;; - esac - - if test yes != "$lib_linked"; then - func_fatal_configuration "unsupported hardcode properties" - fi - - if test -n "$add_shlibpath"; then - case :$compile_shlibpath: in - *":$add_shlibpath:"*) ;; - *) func_append compile_shlibpath "$add_shlibpath:" ;; - esac - fi - if test prog = "$linkmode"; then - test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" - test -n "$add" && compile_deplibs="$add $compile_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - if test yes != "$hardcode_direct" && - test yes != "$hardcode_minus_L" && - test yes = "$hardcode_shlibpath_var"; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - fi - fi - fi - - if test prog = "$linkmode" || test relink = "$opt_mode"; then - add_shlibpath= - add_dir= - add= - # Finalize command for both is simple: just hardcode it. - if test yes = "$hardcode_direct" && - test no = "$hardcode_direct_absolute"; then - add=$libdir/$linklib - elif test yes = "$hardcode_minus_L"; then - add_dir=-L$libdir - add=-l$name - elif test yes = "$hardcode_shlibpath_var"; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - add=-l$name - elif test yes = "$hardcode_automatic"; then - if test -n "$inst_prefix_dir" && - test -f "$inst_prefix_dir$libdir/$linklib"; then - add=$inst_prefix_dir$libdir/$linklib - else - add=$libdir/$linklib - fi - else - # We cannot seem to hardcode it, guess we'll fake it. - add_dir=-L$libdir - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add=-l$name - fi - - if test prog = "$linkmode"; then - test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" - test -n "$add" && finalize_deplibs="$add $finalize_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - fi - fi - elif test prog = "$linkmode"; then - # Here we assume that one of hardcode_direct or hardcode_minus_L - # is not unsupported. This is valid on all known static and - # shared platforms. - if test unsupported != "$hardcode_direct"; then - test -n "$old_library" && linklib=$old_library - compile_deplibs="$dir/$linklib $compile_deplibs" - finalize_deplibs="$dir/$linklib $finalize_deplibs" - else - compile_deplibs="-l$name -L$dir $compile_deplibs" - finalize_deplibs="-l$name -L$dir $finalize_deplibs" - fi - elif test yes = "$build_libtool_libs"; then - # Not a shared library - if test pass_all != "$deplibs_check_method"; then - # We're trying link a shared library against a static one - # but the system doesn't support it. - - # Just print a warning and add the library to dependency_libs so - # that the program can be linked against the static library. - echo - $ECHO "*** Warning: This system cannot link to static lib archive $lib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. 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So, this module is probably useless." - echo "*** 'nm' from GNU binutils and a full rebuild may help." - fi - if test no = "$build_old_libs"; then - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - else - deplibs="$dir/$old_library $deplibs" - link_static=yes - fi - fi # link shared/static library? - - if test lib = "$linkmode"; then - if test -n "$dependency_libs" && - { test yes != "$hardcode_into_libs" || - test yes = "$build_old_libs" || - test yes = "$link_static"; }; then - # Extract -R from dependency_libs - temp_deplibs= - for libdir in $dependency_libs; do - case $libdir in - -R*) func_stripname '-R' '' "$libdir" - temp_xrpath=$func_stripname_result - case " $xrpath " in - *" $temp_xrpath "*) ;; - *) func_append xrpath " $temp_xrpath";; - esac;; - *) func_append temp_deplibs " $libdir";; - esac - done - dependency_libs=$temp_deplibs - fi - - func_append newlib_search_path " $absdir" - # Link against this library - test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" - # ... and its dependency_libs - tmp_libs= - for deplib in $dependency_libs; do - newdependency_libs="$deplib $newdependency_libs" - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result";; - *) func_resolve_sysroot "$deplib" ;; - esac - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $func_resolve_sysroot_result "*) - func_append specialdeplibs " $func_resolve_sysroot_result" ;; - esac - fi - func_append tmp_libs " $func_resolve_sysroot_result" - done - - if test no != "$link_all_deplibs"; then - # Add the search paths of all dependency libraries - for deplib in $dependency_libs; do - path= - case $deplib in - -L*) path=$deplib ;; - *.la) - func_resolve_sysroot "$deplib" - deplib=$func_resolve_sysroot_result - func_dirname "$deplib" "" "." - dir=$func_dirname_result - # We need an absolute path. - case $dir in - [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; - *) - absdir=`cd "$dir" && pwd` - if test -z "$absdir"; then - func_warning "cannot determine absolute directory name of '$dir'" - absdir=$dir - fi - ;; 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then - vars="compile_deplibs finalize_deplibs" - else - vars=deplibs - fi - for var in $vars dependency_libs; do - # Add libraries to $var in reverse order - eval tmp_libs=\"\$$var\" - new_libs= - for deplib in $tmp_libs; do - # FIXME: Pedantically, this is the right thing to do, so - # that some nasty dependency loop isn't accidentally - # broken: - #new_libs="$deplib $new_libs" - # Pragmatically, this seems to cause very few problems in - # practice: - case $deplib in - -L*) new_libs="$deplib $new_libs" ;; - -R*) ;; - *) - # And here is the reason: when a library appears more - # than once as an explicit dependence of a library, or - # is implicitly linked in more than once by the - # compiler, it is considered special, and multiple - # occurrences thereof are not removed. 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- *) - func_error "REVISION '$revision' must be a nonnegative integer" - func_fatal_error "'$vinfo' is not valid version information" - ;; - esac - - case $age in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "AGE '$age' must be a nonnegative integer" - func_fatal_error "'$vinfo' is not valid version information" - ;; - esac - - if test "$age" -gt "$current"; then - func_error "AGE '$age' is greater than the current interface number '$current'" - func_fatal_error "'$vinfo' is not valid version information" - fi - - # Calculate the version variables. - major= - versuffix= - verstring= - case $version_type in - none) ;; - - darwin) - # Like Linux, but with the current version available in - # verstring for coding it into the library header - func_arith $current - $age - major=.$func_arith_result - versuffix=$major.$age.$revision - # Darwin ld doesn't like 0 for these options... - func_arith $current + 1 - minor_current=$func_arith_result - xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" - verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" - # On Darwin other compilers - case $CC in - nagfor*) - verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" - ;; 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then - major= - case $version_type in - darwin) - # we can't check for "0.0" in archive_cmds due to quoting - # problems, so we reset it completely - verstring= - ;; - *) - verstring=0.0 - ;; - esac - if test no = "$need_version"; then - versuffix= - else - versuffix=.0.0 - fi - fi - - # Remove version info from name if versioning should be avoided - if test yes,no = "$avoid_version,$need_version"; then - major= - versuffix= - verstring= - fi - - # Check to see if the archive will have undefined symbols. - if test yes = "$allow_undefined"; then - if test unsupported = "$allow_undefined_flag"; then - if test yes = "$build_old_libs"; then - func_warning "undefined symbols not allowed in $host shared libraries; building static only" - build_libtool_libs=no - else - func_fatal_error "can't build $host shared library unless -no-undefined is specified" - fi - fi - else - # Don't allow undefined symbols. - allow_undefined_flag=$no_undefined_flag - fi - - fi - - func_generate_dlsyms "$libname" "$libname" : - func_append libobjs " $symfileobj" - test " " = "$libobjs" && libobjs= - - if test relink != "$opt_mode"; then - # Remove our outputs, but don't remove object files since they - # may have been created when compiling PIC objects. - removelist= - tempremovelist=`$ECHO "$output_objdir/*"` - for p in $tempremovelist; do - case $p in - *.$objext | *.gcno) - ;; - $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) - if test -n "$precious_files_regex"; then - if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 - then - continue - fi - fi - func_append removelist " $p" - ;; - *) ;; - esac - done - test -n "$removelist" && \ - func_show_eval "${RM}r \$removelist" - fi - - # Now set the variables for building old libraries. - if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then - func_append oldlibs " $output_objdir/$libname.$libext" - - # Transform .lo files to .o files. - oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` - fi - - # Eliminate all temporary directories. - #for path in $notinst_path; do - # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` - # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` - # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` - #done - - if test -n "$xrpath"; then - # If the user specified any rpath flags, then add them. - temp_xrpath= - for libdir in $xrpath; do - func_replace_sysroot "$libdir" - func_append temp_xrpath " -R$func_replace_sysroot_result" - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then - dependency_libs="$temp_xrpath $dependency_libs" - fi - fi - - # Make sure dlfiles contains only unique files that won't be dlpreopened - old_dlfiles=$dlfiles - dlfiles= - for lib in $old_dlfiles; do - case " $dlprefiles $dlfiles " in - *" $lib "*) ;; - *) func_append dlfiles " $lib" ;; - esac - done - - # Make sure dlprefiles contains only unique files - old_dlprefiles=$dlprefiles - dlprefiles= - for lib in $old_dlprefiles; do - case "$dlprefiles " in - *" $lib "*) ;; - *) func_append dlprefiles " $lib" ;; - esac - done - - if test yes = "$build_libtool_libs"; then - if test -n "$rpath"; then - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) - # these systems don't actually have a c library (as such)! - ;; - *-*-rhapsody* | *-*-darwin1.[012]) - # Rhapsody C library is in the System framework - func_append deplibs " System.ltframework" - ;; - *-*-netbsd*) - # Don't link with libc until the a.out ld.so is fixed. - ;; - *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) - # Do not include libc due to us having libc/libc_r. - ;; - *-*-sco3.2v5* | *-*-sco5v6*) - # Causes problems with __ctype - ;; - *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) - # Compiler inserts libc in the correct place for threads to work - ;; - *) - # Add libc to deplibs on all other systems if necessary. - if test yes = "$build_libtool_need_lc"; then - func_append deplibs " -lc" - fi - ;; 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So, this module is probably useless." - echo "*** 'nm' from GNU binutils and a full rebuild may help." - fi - if test no = "$build_old_libs"; then - oldlibs=$output_objdir/$libname.$libext - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - else - echo "*** The inter-library dependencies that have been dropped here will be" - echo "*** automatically added whenever a program is linked with this library" - echo "*** or is declared to -dlopen it." - - if test no = "$allow_undefined"; then - echo - echo "*** Since this library must not contain undefined symbols," - echo "*** because either the platform does not support them or" - echo "*** it was explicitly requested with -no-undefined," - echo "*** libtool will only create a static version of it." - if test no = "$build_old_libs"; then - oldlibs=$output_objdir/$libname.$libext - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - fi - fi - # Done checking deplibs! - deplibs=$newdeplibs - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - case $host in - *-*-darwin*) - newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; 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do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - func_replace_sysroot "$libdir" - libdir=$func_replace_sysroot_result - if test -z "$hardcode_libdirs"; then - hardcode_libdirs=$libdir - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append dep_rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir=$hardcode_libdirs - eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" - fi - if test -n "$runpath_var" && test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" - fi - test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" - fi - - shlibpath=$finalize_shlibpath - test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath - if test -n "$shlibpath"; then - eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" - fi - - # Get the real and link names of the library. - eval shared_ext=\"$shrext_cmds\" - eval library_names=\"$library_names_spec\" - set dummy $library_names - shift - realname=$1 - shift - - if test -n "$soname_spec"; then - eval soname=\"$soname_spec\" - else - soname=$realname - fi - if test -z "$dlname"; then - dlname=$soname - fi - - lib=$output_objdir/$realname - linknames= - for link - do - func_append linknames " $link" - done - - # Use standard objects if they are pic - test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` - test "X$libobjs" = "X " && libobjs= - - delfiles= - if test -n "$export_symbols" && test -n "$include_expsyms"; then - $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" - export_symbols=$output_objdir/$libname.uexp - func_append delfiles " $export_symbols" - fi - - orig_export_symbols= - case $host_os in - cygwin* | mingw* | cegcc*) - if test -n "$export_symbols" && test -z "$export_symbols_regex"; then - # exporting using user supplied symfile - func_dll_def_p "$export_symbols" || { - # and it's NOT already a .def file. 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GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - - tmp_deplibs= - for test_deplib in $deplibs; do - case " $convenience " in - *" $test_deplib "*) ;; - *) - func_append tmp_deplibs " $test_deplib" - ;; - esac - done - deplibs=$tmp_deplibs - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec" && - test yes = "$compiler_needs_object" && - test -z "$libobjs"; then - # extract the archives, so we have objects to list. - # TODO: could optimize this to just extract one archive. - whole_archive_flag_spec= - fi - if test -n "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - else - gentop=$output_objdir/${outputname}x - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - fi - - if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then - eval flag=\"$thread_safe_flag_spec\" - func_append linker_flags " $flag" - fi - - # Make a backup of the uninstalled library when relinking - if test relink = "$opt_mode"; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? - fi - - # Do each of the archive commands. - if test yes = "$module" && test -n "$module_cmds"; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - eval test_cmds=\"$module_expsym_cmds\" - cmds=$module_expsym_cmds - else - eval test_cmds=\"$module_cmds\" - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - eval test_cmds=\"$archive_expsym_cmds\" - cmds=$archive_expsym_cmds - else - eval test_cmds=\"$archive_cmds\" - cmds=$archive_cmds - fi - fi - - if test : != "$skipped_export" && - func_len " $test_cmds" && - len=$func_len_result && - test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then - : - else - # The command line is too long to link in one step, link piecewise - # or, if using GNU ld and skipped_export is not :, use a linker - # script. - - # Save the value of $output and $libobjs because we want to - # use them later. 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All subsequent reloadable object - # files will link in the last one created. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\$concat_cmds$reload_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - func_append delfiles " $output" - - else - output= - fi - - ${skipped_export-false} && { - func_verbose "generating symbol list for '$libname.la'" - export_symbols=$output_objdir/$libname.exp - $opt_dry_run || $RM $export_symbols - libobjs=$output - # Append the command to create the export file. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - } - - test -n "$save_libobjs" && - func_verbose "creating a temporary reloadable object file: $output" - - # Loop through the commands generated above and execute them. - save_ifs=$IFS; IFS='~' - for cmd in $concat_cmds; do - IFS=$save_ifs - $opt_quiet || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test relink = "$opt_mode"; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS=$save_ifs - - if test -n "$export_symbols_regex" && ${skipped_export-false}; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - - ${skipped_export-false} && { - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols=$export_symbols - test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for '$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands, which not all seds can handle. GNU sed should be fine - # though. 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then - libdir=$hardcode_libdirs - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - compile_rpath=$rpath - - rpath= - hardcode_libdirs= - for libdir in $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs=$libdir - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$finalize_perm_rpath " in - *" $libdir "*) ;; - *) func_append finalize_perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir=$hardcode_libdirs - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - finalize_rpath=$rpath - - if test -n "$libobjs" && test yes = "$build_old_libs"; 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That mode is quite known by -# big-endian machines (sparc, etc) however the alpha cpu is little- -# endian. -# -# The following function will test for aligned access to be required and -# set a config.h define HAVE_ALIGNED_ACCESS_REQUIRED (name derived by -# standard usage). Structures loaded from a file (or mmapped to memory) -# should be accessed per-byte in that case to avoid segfault type errors. -# -# LICENSE -# -# Copyright (c) 2008 Guido U. Draheim -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 7 - -AC_DEFUN([AX_CHECK_ALIGNED_ACCESS_REQUIRED], -[AC_CACHE_CHECK([if pointers to integers require aligned access], - [ax_cv_have_aligned_access_required], - [AC_TRY_RUN([ -#include -#include - -int main() -{ - char* string = malloc(40); - int i; - for (i=0; i < 40; i++) string[[i]] = i; - { - void* s = string; - int* p = s+1; - int* q = s+2; - - if (*p == *q) { return 1; } - } - return 0; -} - ], - [ax_cv_have_aligned_access_required=yes], - [ax_cv_have_aligned_access_required=no], - [ax_cv_have_aligned_access_required=no]) - ]) -if test "$ax_cv_have_aligned_access_required" = yes ; then - AC_DEFINE([HAVE_ALIGNED_ACCESS_REQUIRED], [1], - [Define if pointers to integers require aligned access]) -fi -]) diff --git a/extern/xdelta3/m4/libtool.m4 b/extern/xdelta3/m4/libtool.m4 deleted file mode 100644 index da4a4f6..0000000 --- a/extern/xdelta3/m4/libtool.m4 +++ /dev/null @@ -1,8382 +0,0 @@ -# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- -# -# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc. -# Written by Gordon Matzigkeit, 1996 -# -# This file is free software; the Free Software Foundation gives -# unlimited permission to copy and/or distribute it, with or without -# modifications, as long as this notice is preserved. - -m4_define([_LT_COPYING], [dnl -# Copyright (C) 2014 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. 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- *) - lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback - ;; - esac - ;; -*) - # fallback: assume linklib IS sharedlib - lt_cv_sharedlib_from_linklib_cmd=$ECHO - ;; -esac -]) -sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd -test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO - -_LT_DECL([], [sharedlib_from_linklib_cmd], [1], - [Command to associate shared and link libraries]) -])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB - - -# _LT_PATH_MANIFEST_TOOL -# ---------------------- -# locate the manifest tool -m4_defun([_LT_PATH_MANIFEST_TOOL], -[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) -test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt -AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], - [lt_cv_path_mainfest_tool=no - echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD - $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out - cat conftest.err >&AS_MESSAGE_LOG_FD - if $GREP 'Manifest Tool' conftest.out > /dev/null; then - lt_cv_path_mainfest_tool=yes - fi - rm -f conftest*]) -if test yes != "$lt_cv_path_mainfest_tool"; then - MANIFEST_TOOL=: -fi -_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl -])# _LT_PATH_MANIFEST_TOOL - - -# _LT_DLL_DEF_P([FILE]) -# --------------------- -# True iff FILE is a Windows DLL '.def' file. -# Keep in sync with func_dll_def_p in the libtool script -AC_DEFUN([_LT_DLL_DEF_P], -[dnl - test DEF = "`$SED -n dnl - -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace - -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments - -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl - -e q dnl Only consider the first "real" line - $1`" dnl -])# _LT_DLL_DEF_P - - -# LT_LIB_M -# -------- -# check for math library -AC_DEFUN([LT_LIB_M], -[AC_REQUIRE([AC_CANONICAL_HOST])dnl -LIBM= -case $host in -*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) - # These system don't have libm, or don't need it - ;; -*-ncr-sysv4.3*) - AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw) - AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") - ;; -*) - AC_CHECK_LIB(m, cos, LIBM=-lm) - ;; -esac -AC_SUBST([LIBM]) -])# LT_LIB_M - -# Old name: -AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) -dnl aclocal-1.4 backwards compatibility: -dnl AC_DEFUN([AC_CHECK_LIBM], []) - - -# _LT_COMPILER_NO_RTTI([TAGNAME]) -# ------------------------------- -m4_defun([_LT_COMPILER_NO_RTTI], -[m4_require([_LT_TAG_COMPILER])dnl - -_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= - -if test yes = "$GCC"; then - case $cc_basename in - nvcc*) - _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; - *) - _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; - esac - - _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], - lt_cv_prog_compiler_rtti_exceptions, - [-fno-rtti -fno-exceptions], [], - [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) -fi -_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], - [Compiler flag to turn off builtin functions]) -])# _LT_COMPILER_NO_RTTI - - -# _LT_CMD_GLOBAL_SYMBOLS -# ---------------------- -m4_defun([_LT_CMD_GLOBAL_SYMBOLS], -[AC_REQUIRE([AC_CANONICAL_HOST])dnl -AC_REQUIRE([AC_PROG_CC])dnl -AC_REQUIRE([AC_PROG_AWK])dnl -AC_REQUIRE([LT_PATH_NM])dnl -AC_REQUIRE([LT_PATH_LD])dnl -m4_require([_LT_DECL_SED])dnl -m4_require([_LT_DECL_EGREP])dnl -m4_require([_LT_TAG_COMPILER])dnl - -# Check for command to grab the raw symbol name followed by C symbol from nm. -AC_MSG_CHECKING([command to parse $NM output from $compiler object]) -AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], -[ -# These are sane defaults that work on at least a few old systems. -# [They come from Ultrix. What could be older than Ultrix?!! ;)] - -# Character class describing NM global symbol codes. -symcode='[[BCDEGRST]]' - -# Regexp to match symbols that can be accessed directly from C. -sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' - -# Define system-specific variables. -case $host_os in -aix*) - symcode='[[BCDT]]' - ;; -cygwin* | mingw* | pw32* | cegcc*) - symcode='[[ABCDGISTW]]' - ;; -hpux*) - if test ia64 = "$host_cpu"; then - symcode='[[ABCDEGRST]]' - fi - ;; -irix* | nonstopux*) - symcode='[[BCDEGRST]]' - ;; -osf*) - symcode='[[BCDEGQRST]]' - ;; -solaris*) - symcode='[[BDRT]]' - ;; -sco3.2v5*) - symcode='[[DT]]' - ;; -sysv4.2uw2*) - symcode='[[DT]]' - ;; -sysv5* | sco5v6* | unixware* | OpenUNIX*) - symcode='[[ABDT]]' - ;; -sysv4) - symcode='[[DFNSTU]]' - ;; -esac - -# If we're using GNU nm, then use its standard symbol codes. -case `$NM -V 2>&1` in -*GNU* | *'with BFD'*) - symcode='[[ABCDGIRSTW]]' ;; -esac - -if test "$lt_cv_nm_interface" = "MS dumpbin"; then - # Gets list of data symbols to import. - lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" - # Adjust the below global symbol transforms to fixup imported variables. - lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" - lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" - lt_c_name_lib_hook="\ - -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ - -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" -else - # Disable hooks by default. - lt_cv_sys_global_symbol_to_import= - lt_cdecl_hook= - lt_c_name_hook= - lt_c_name_lib_hook= -fi - -# Transform an extracted symbol line into a proper C declaration. -# Some systems (esp. on ia64) link data and code symbols differently, -# so use this general approach. -lt_cv_sys_global_symbol_to_cdecl="sed -n"\ -$lt_cdecl_hook\ -" -e 's/^T .* \(.*\)$/extern int \1();/p'"\ -" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" - -# Transform an extracted symbol line into symbol name and symbol address -lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ -$lt_c_name_hook\ -" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ -" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" - -# Transform an extracted symbol line into symbol name with lib prefix and -# symbol address. -lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ -$lt_c_name_lib_hook\ -" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ -" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ -" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" - -# Handle CRLF in mingw tool chain -opt_cr= -case $build_os in -mingw*) - opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp - ;; -esac - -# Try without a prefix underscore, then with it. -for ac_symprfx in "" "_"; do - - # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. - symxfrm="\\1 $ac_symprfx\\2 \\2" - - # Write the raw and C identifiers. - if test "$lt_cv_nm_interface" = "MS dumpbin"; then - # Fake it for dumpbin and say T for any non-static function, - # D for any global variable and I for any imported variable. - # Also find C++ and __fastcall symbols from MSVC++, - # which start with @ or ?. - lt_cv_sys_global_symbol_pipe="$AWK ['"\ -" {last_section=section; section=\$ 3};"\ -" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ -" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ -" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ -" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ -" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ -" \$ 0!~/External *\|/{next};"\ -" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ -" {if(hide[section]) next};"\ -" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ -" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ -" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ -" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ -" ' prfx=^$ac_symprfx]" - else - lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" - fi - lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" - - # Check to see that the pipe works correctly. - pipe_works=no - - rm -f conftest* - cat > conftest.$ac_ext <<_LT_EOF -#ifdef __cplusplus -extern "C" { -#endif -char nm_test_var; -void nm_test_func(void); -void nm_test_func(void){} -#ifdef __cplusplus -} -#endif -int main(){nm_test_var='a';nm_test_func();return(0);} -_LT_EOF - - if AC_TRY_EVAL(ac_compile); then - # Now try to grab the symbols. - nlist=conftest.nm - if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then - # Try sorting and uniquifying the output. - if sort "$nlist" | uniq > "$nlist"T; then - mv -f "$nlist"T "$nlist" - else - rm -f "$nlist"T - fi - - # Make sure that we snagged all the symbols we need. - if $GREP ' nm_test_var$' "$nlist" >/dev/null; then - if $GREP ' nm_test_func$' "$nlist" >/dev/null; then - cat <<_LT_EOF > conftest.$ac_ext -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE -/* DATA imports from DLLs on WIN32 can't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT@&t@_DLSYM_CONST -#elif defined __osf__ -/* This system does not cope well with relocations in const data. */ -# define LT@&t@_DLSYM_CONST -#else -# define LT@&t@_DLSYM_CONST const -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -_LT_EOF - # Now generate the symbol file. - eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' - - cat <<_LT_EOF >> conftest.$ac_ext - -/* The mapping between symbol names and symbols. */ -LT@&t@_DLSYM_CONST struct { - const char *name; - void *address; -} -lt__PROGRAM__LTX_preloaded_symbols[[]] = -{ - { "@PROGRAM@", (void *) 0 }, -_LT_EOF - $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext - cat <<\_LT_EOF >> conftest.$ac_ext - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt__PROGRAM__LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif -_LT_EOF - # Now try linking the two files. - mv conftest.$ac_objext conftstm.$ac_objext - lt_globsym_save_LIBS=$LIBS - lt_globsym_save_CFLAGS=$CFLAGS - LIBS=conftstm.$ac_objext - CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" - if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then - pipe_works=yes - fi - LIBS=$lt_globsym_save_LIBS - CFLAGS=$lt_globsym_save_CFLAGS - else - echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD - fi - else - echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD - fi - else - echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD - fi - else - echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD - cat conftest.$ac_ext >&5 - fi - rm -rf conftest* conftst* - - # Do not use the global_symbol_pipe unless it works. - if test yes = "$pipe_works"; then - break - else - lt_cv_sys_global_symbol_pipe= - fi -done -]) -if test -z "$lt_cv_sys_global_symbol_pipe"; then - lt_cv_sys_global_symbol_to_cdecl= -fi -if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then - AC_MSG_RESULT(failed) -else - AC_MSG_RESULT(ok) -fi - -# Response file support. -if test "$lt_cv_nm_interface" = "MS dumpbin"; then - nm_file_list_spec='@' -elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then - nm_file_list_spec='@' -fi - -_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], - [Take the output of nm and produce a listing of raw symbols and C names]) -_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], - [Transform the output of nm in a proper C declaration]) -_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], - [Transform the output of nm into a list of symbols to manually relocate]) -_LT_DECL([global_symbol_to_c_name_address], - [lt_cv_sys_global_symbol_to_c_name_address], [1], - [Transform the output of nm in a C name address pair]) -_LT_DECL([global_symbol_to_c_name_address_lib_prefix], - [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], - [Transform the output of nm in a C name address pair when lib prefix is needed]) -_LT_DECL([nm_interface], [lt_cv_nm_interface], [1], - [The name lister interface]) -_LT_DECL([], [nm_file_list_spec], [1], - [Specify filename containing input files for $NM]) -]) # _LT_CMD_GLOBAL_SYMBOLS - - -# _LT_COMPILER_PIC([TAGNAME]) -# --------------------------- -m4_defun([_LT_COMPILER_PIC], -[m4_require([_LT_TAG_COMPILER])dnl -_LT_TAGVAR(lt_prog_compiler_wl, $1)= -_LT_TAGVAR(lt_prog_compiler_pic, $1)= -_LT_TAGVAR(lt_prog_compiler_static, $1)= - -m4_if([$1], [CXX], [ - # C++ specific cases for pic, static, wl, etc. - if test yes = "$GXX"; then - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' - - case $host_os in - aix*) - # All AIX code is PIC. - if test ia64 = "$host_cpu"; then - # AIX 5 now supports IA64 processor - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - fi - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - - amigaos*) - case $host_cpu in - powerpc) - # see comment about AmigaOS4 .so support - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - m68k) - # FIXME: we need at least 68020 code to build shared libraries, but - # adding the '-m68020' flag to GCC prevents building anything better, - # like '-m68040'. - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' - ;; - esac - ;; - - beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) - # PIC is the default for these OSes. - ;; - mingw* | cygwin* | os2* | pw32* | cegcc*) - # This hack is so that the source file can tell whether it is being - # built for inclusion in a dll (and should export symbols for example). - # Although the cygwin gcc ignores -fPIC, still need this for old-style - # (--disable-auto-import) libraries - m4_if([$1], [GCJ], [], - [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) - case $host_os in - os2*) - _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' - ;; - esac - ;; - darwin* | rhapsody*) - # PIC is the default on this platform - # Common symbols not allowed in MH_DYLIB files - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' - ;; - *djgpp*) - # DJGPP does not support shared libraries at all - _LT_TAGVAR(lt_prog_compiler_pic, $1)= - ;; - haiku*) - # PIC is the default for Haiku. - # The "-static" flag exists, but is broken. - _LT_TAGVAR(lt_prog_compiler_static, $1)= - ;; - interix[[3-9]]*) - # Interix 3.x gcc -fpic/-fPIC options generate broken code. - # Instead, we relocate shared libraries at runtime. - ;; - sysv4*MP*) - if test -d /usr/nec; then - _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic - fi - ;; - hpux*) - # PIC is the default for 64-bit PA HP-UX, but not for 32-bit - # PA HP-UX. 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then - _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" - fi - ;; - esac - else - # PORTME Check for flag to pass linker flags through the system compiler. - case $host_os in - aix*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - if test ia64 = "$host_cpu"; then - # AIX 5 now supports IA64 processor - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - else - _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' - fi - ;; - - darwin* | rhapsody*) - # PIC is the default on this platform - # Common symbols not allowed in MH_DYLIB files - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' - case $cc_basename in - nagfor*) - # NAG Fortran compiler - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - ;; - esac - ;; - - mingw* | cygwin* | pw32* | os2* | cegcc*) - # This hack is so that the source file can tell whether it is being - # built for inclusion in a dll (and should export symbols for example). - m4_if([$1], [GCJ], [], - [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) - case $host_os in - os2*) - _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' - ;; - esac - ;; - - hpux9* | hpux10* | hpux11*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but - # not for PA HP-UX. - case $host_cpu in - hppa*64*|ia64*) - # +Z the default - ;; - *) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' - ;; - esac - # Is there a better lt_prog_compiler_static that works with the bundled CC? - _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' - ;; - - irix5* | irix6* | nonstopux*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - # PIC (with -KPIC) is the default. - _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' - ;; - - linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) - case $cc_basename in - # old Intel for x86_64, which still supported -KPIC. - ecc*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' - ;; - # icc used to be incompatible with GCC. - # ICC 10 doesn't accept -KPIC any more. - icc* | ifort*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' - ;; 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Vaughan, 2004 -# -# This file is free software; the Free Software Foundation gives -# unlimited permission to copy and/or distribute it, with or without -# modifications, as long as this notice is preserved. - -# serial 6 ltsugar.m4 - -# This is to help aclocal find these macros, as it can't see m4_define. -AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) - - -# lt_join(SEP, ARG1, [ARG2...]) -# ----------------------------- -# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their -# associated separator. -# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier -# versions in m4sugar had bugs. -m4_define([lt_join], -[m4_if([$#], [1], [], - [$#], [2], [[$2]], - [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) -m4_define([_lt_join], -[m4_if([$#$2], [2], [], - [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) - - -# lt_car(LIST) -# lt_cdr(LIST) -# ------------ -# Manipulate m4 lists. -# These macros are necessary as long as will still need to support -# Autoconf-2.59, which quotes differently. -m4_define([lt_car], [[$1]]) -m4_define([lt_cdr], -[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], - [$#], 1, [], - [m4_dquote(m4_shift($@))])]) -m4_define([lt_unquote], $1) - - -# lt_append(MACRO-NAME, STRING, [SEPARATOR]) -# ------------------------------------------ -# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'. -# Note that neither SEPARATOR nor STRING are expanded; they are appended -# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). -# No SEPARATOR is output if MACRO-NAME was previously undefined (different -# than defined and empty). -# -# This macro is needed until we can rely on Autoconf 2.62, since earlier -# versions of m4sugar mistakenly expanded SEPARATOR but not STRING. -m4_define([lt_append], -[m4_define([$1], - m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) - - - -# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) -# ---------------------------------------------------------- -# Produce a SEP delimited list of all paired combinations of elements of -# PREFIX-LIST with SUFFIX1 through SUFFIXn. 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See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -if test $# -eq 0; then - echo 1>&2 "Try '$0 --help' for more information" - exit 1 -fi - -case $1 in - - --is-lightweight) - # Used by our autoconf macros to check whether the available missing - # script is modern enough. - exit 0 - ;; - - --run) - # Back-compat with the calling convention used by older automake. - shift - ;; - - -h|--h|--he|--hel|--help) - echo "\ -$0 [OPTION]... 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" - (cd "${dir}" && "$@" >${w}.stdout 2>${w}.stderr) - local s=$? - if [ ${s} -eq 0 ]; then - echo " success" - else - echo " failed!" - echo "Error $1 in ${dir}" >&2 - fi - return ${s} -} - -function buildlzma { - host=$1 - march=$2 - local target="${BUILDDIR}/lib-${host}${march}" - - echo " ... liblzma" - - mkdir -p ${target} - - try configure-lzma ${target} ${LZMASRC}/configure \ - --host=${host} \ - --prefix=${target} \ - --disable-shared \ - "CFLAGS=${march}" \ - "CXXFLAGS=${march}" \ - "LDFLAGS=${march}" - if [ $? -ne 0 ]; then - return - fi - - try build-lzma ${target} make ${MAKEFLAGS} - if [ $? -ne 0 ]; then - return - fi - try install-lzma ${target} make install - if [ $? -ne 0 ]; then - return - fi -} - -function buildit { - local host=$1 - local march=$2 - local offsetbits=$3 - local cargs=$4 - local afl=$5 - local BM="${host}${march}" - local USECC="${CC}" - local USECXX="${CXX}" - local LIBBM="${BM}" - - if [ "${afl}" = "1" ]; then - USECC="afl-gcc" - USECXX="afl-g++" - BM="${BM}-afl" - fi - - local D="build/${BM}/xoff${offsetbits}" - local BMD="${BM}-${offsetbits}" - local FULLD="${SRCDIR}/${D}" - local CFLAGS="${march} ${cargs} -I${SRCDIR}/build/lib-${LIBBM}/include" - local CXXFLAGS="${march} ${cargs} -I${SRCDIR}/build/lib-${LIBBM}/include" - local CPPFLAGS="-I${SRCDIR}/build/lib-${LIBBM}/include" - local LDFLAGS="${march} -L${SRCDIR}/build/lib-${LIBBM}/lib" - - mkdir -p ${D} - - echo " ... ${BMD}" - - cat >> Makefile.test < \${TMP}/regtest.${BMD}.stdout 2> \${TMP}/regtest.${BMD}.stderr) - -.PHONY: selftest-${BMD} -selftest-${BMD}: - (cd ${D} && ./bin/xdelta3 test 1> \${TMP}/selftest.${BMD}.stdout 2> \${TMP}/selftest.${BMD}.stderr) - - -EOF - - case ${host} in - *linux*) - LINUXTGTS="${LINUXTGTS} build-${BMD}" - LINUXTEST1="${LINUXTEST1} selftest-${BMD}" - LINUXTEST2="${LINUXTEST2} regtest-${BMD}" - ;; - *mingw*) - WINTGTS="${WINTGTS} build-${BMD}" - WINTEST1="${WINTEST1} selftest-${BMD}" - WINTEST2="${WINTEST2} regtest-${BMD}" - ;; - *apple*) - OSXTGTS="${OSXTGTS} build-${BMD}" - OSXTEST1="${OSXTEST1} selftest-${BMD}" - OSXTEST2="${OSXTEST2} regtest-${BMD}" - ;; - esac - CLEAN="${CLEAN} clean-${BMD}" - - try configure-xdelta ${FULLD} ${SRCDIR}/configure \ - --host=${host} \ - --prefix=${FULLD} \ - --enable-static \ - --disable-shared \ - --enable-debug-symbols \ - "CFLAGS=${CFLAGS}" \ - "CXXFLAGS=${CXXFLAGS}" \ - "CPPFLAGS=${CPPFLAGS}" \ - "LDFLAGS=${LDFLAGS}" \ - "CC=${USECC}" \ - "CXX=${USECXX}" - if [ $? -ne 0 ]; then - return - fi - - # try build-xdelta ${FULLD} make ${MAKEFLAGS} all - # if [ $? -ne 0 ]; then - # return - # fi - - # try install-xdelta ${FULLD} make install -} - -function buildall { - echo "" - echo "Host $1$2 afl=$4" - echo "" - - buildlzma "$1" "$2" - buildit "$1" "$2" 32 "-DXD3_USE_LARGEFILE64=0 $3" "$4" - buildit "$1" "$2" 64 "-DXD3_USE_LARGEFILE64=1 $3" "$4" -} - -setup - -try untar-lzma ${BUILDDIR} tar -xvf "${LZMA_FILE}" -if [ $? -ne 0 ]; then - exit $? -fi - -cat > Makefile.test <> Makefile.test <src == NULL); - XD3_ASSERT (option_srcwinsz >= XD3_MINSRCWINSZ); - - /* TODO: this code needs refactoring into FIFO, LRU, FAKE. Yuck! - * This is simplified from 3.0z which had issues with sizing the - * source buffer memory allocation and the source blocksize. */ - - /* LRU-specific */ - main_blklru_list_init (& lru_list); - - if (allow_fake_source) - { - /* TODO: refactor - * TOOLS/recode-specific: Check "allow_fake_source" mode looks - * broken now. */ - sfile->mode = XO_READ; - sfile->realname = sfile->filename; - sfile->nread = 0; - } - else - { - /* Either a regular file (possibly compressed) or a FIFO - * (possibly compressed). */ - if ((ret = main_file_open (sfile, sfile->filename, XO_READ))) - { - return ret; - } - - /* If the file is regular we know it's size. If the file turns - * out to be externally compressed, size_known may change. */ - sfile->size_known = (main_file_stat (sfile, &source_size) == 0); - } - - /* Note: The API requires a power-of-two blocksize and srcwinsz - * (-B). The logic here will use a single block if the entire file - * is known to fit into srcwinsz. */ - option_srcwinsz = xd3_pow2_roundup (option_srcwinsz); - - /* Though called "lru", it is not LRU-specific. We always allocate - * a maximum number of source block buffers. If the entire file - * fits into srcwinsz, this buffer will stay as the only - * (lru_size==1) source block. Otherwise, we know that at least - * option_srcwinsz bytes are available. Split the source window - * into buffers. */ - if ((lru = (main_blklru*) main_malloc (MAX_LRU_SIZE * - sizeof (main_blklru))) == NULL) - { - ret = ENOMEM; - return ret; - } - - memset (lru, 0, sizeof(lru[0]) * MAX_LRU_SIZE); - - /* Allocate the entire buffer. */ - if ((lru[0].blk = (uint8_t*) main_bufalloc (option_srcwinsz)) == NULL) - { - ret = ENOMEM; - return ret; - } - - /* Main calls main_getblk_func() once before xd3_set_source(). This - * is the point at which external decompression may begin. Set the - * system for a single block. */ - lru_size = 1; - lru[0].blkno = (xoff_t) -1; - blksize = option_srcwinsz; - main_blklru_list_push_back (& lru_list, & lru[0]); - XD3_ASSERT (blksize != 0); - - /* Initialize xd3_source. */ - source->blksize = blksize; - source->name = sfile->filename; - source->ioh = sfile; - source->curblkno = (xoff_t) -1; - source->curblk = NULL; - source->max_winsize = option_srcwinsz; - - if ((ret = main_getblk_func (stream, source, 0)) != 0) - { - XPR(NT "error reading source: %s: %s\n", - sfile->filename, - xd3_mainerror (ret)); - return ret; - } - - source->onblk = lru[0].size; /* xd3 sets onblk */ - - /* If the file is smaller than a block, size is known. */ - if (!sfile->size_known && source->onblk < blksize) - { - source_size = source->onblk; - source->onlastblk = source_size; - sfile->size_known = 1; - } - - /* If the size is not known or is greater than the buffer size, we - * split the buffer across MAX_LRU_SIZE blocks (already allocated in - * "lru"). */ - if (!sfile->size_known || source_size > option_srcwinsz) - { - /* Modify block 0, change blocksize. */ - blksize = option_srcwinsz / MAX_LRU_SIZE; - source->blksize = blksize; - source->onblk = blksize; - source->onlastblk = blksize; - source->max_blkno = MAX_LRU_SIZE - 1; - - lru[0].size = blksize; - lru_size = MAX_LRU_SIZE; - - /* Setup rest of blocks. */ - for (i = 1; i < lru_size; i += 1) - { - lru[i].blk = lru[0].blk + (blksize * i); - lru[i].blkno = i; - lru[i].size = blksize; - main_blklru_list_push_back (& lru_list, & lru[i]); - } - } - - if (! sfile->size_known) - { - /* If the size is not know, we must use FIFO discipline. */ - do_src_fifo = 1; - } - - /* Call the appropriate set_source method, handle errors, print - * verbose message, etc. */ - if (sfile->size_known) - { - ret = xd3_set_source_and_size (stream, source, source_size); - } - else - { - ret = xd3_set_source (stream, source); - } - - if (ret) - { - XPR(NT XD3_LIB_ERRMSG (stream, ret)); - return ret; - } - - XD3_ASSERT (stream->src == source); - XD3_ASSERT (source->blksize == blksize); - - if (option_verbose) - { - static shortbuf srcszbuf; - static shortbuf srccntbuf; - static shortbuf winszbuf; - static shortbuf blkszbuf; - static shortbuf nbufs; - - if (sfile->size_known) - { - short_sprintf (srcszbuf, "source size %s [%"Q"u]", - main_format_bcnt (source_size, &srccntbuf), - source_size); - } - else - { - short_sprintf (srcszbuf, "%s", "source size unknown"); - } - - nbufs.buf[0] = 0; - - if (option_verbose > 1) - { - short_sprintf (nbufs, " #bufs %u", lru_size); - } - - XPR(NT "source %s %s blksize %s window %s%s%s\n", - sfile->filename, - srcszbuf.buf, - main_format_bcnt (blksize, &blkszbuf), - main_format_bcnt (option_srcwinsz, &winszbuf), - nbufs.buf, - do_src_fifo ? " (FIFO)" : ""); - } - - return 0; -} - -static int -main_getblk_lru (xd3_source *source, xoff_t blkno, - main_blklru** blrup, int *is_new) -{ - main_blklru *blru = NULL; - usize_t i; - - (*is_new) = 0; - - if (do_src_fifo) - { - /* Direct lookup assumes sequential scan w/o skipping blocks. */ - int idx = blkno % lru_size; - blru = & lru[idx]; - if (blru->blkno == blkno) - { - (*blrup) = blru; - return 0; - } - /* No going backwards in a sequential scan. */ - if (blru->blkno != (xoff_t) -1 && blru->blkno > blkno) - { - return XD3_TOOFARBACK; - } - } - else - { - /* Sequential search through LRU. */ - for (i = 0; i < lru_size; i += 1) - { - blru = & lru[i]; - if (blru->blkno == blkno) - { - main_blklru_list_remove (blru); - main_blklru_list_push_back (& lru_list, blru); - (*blrup) = blru; - IF_DEBUG1 (DP(RINT "[getblk_lru] HIT blkno = %"Z"u lru_size=%d\n", - blkno, lru_size)); - return 0; - } - } - IF_DEBUG1 (DP(RINT "[getblk_lru] MISS blkno = %"Z"u lru_size=%d\n", - blkno, lru_size)); - } - - if (do_src_fifo) - { - int idx = blkno % lru_size; - blru = & lru[idx]; - } - else - { - XD3_ASSERT (! main_blklru_list_empty (& lru_list)); - blru = main_blklru_list_pop_front (& lru_list); - main_blklru_list_push_back (& lru_list, blru); - } - - lru_filled += 1; - (*is_new) = 1; - (*blrup) = blru; - blru->blkno = -1; - return 0; -} - -static int -main_read_seek_source (xd3_stream *stream, - xd3_source *source, - xoff_t blkno) { - xoff_t pos = blkno * source->blksize; - main_file *sfile = (main_file*) source->ioh; - main_blklru *blru; - int is_new; - size_t nread = 0; - int ret = 0; - - if (!sfile->seek_failed) - { - ret = main_file_seek (sfile, pos); - - if (ret == 0) - { - sfile->source_position = pos; - } - } - - if (sfile->seek_failed || ret != 0) - { - /* For an unseekable file (or other seek error, does it - * matter?) */ - if (sfile->source_position > pos) - { - /* Could assert !IS_ENCODE(), this shouldn't happen - * because of do_src_fifo during encode. */ - if (!option_quiet) - { - XPR(NT "source can't seek backwards; requested block offset " - "%"Q"u source position is %"Q"u\n", - pos, sfile->source_position); - } - - sfile->seek_failed = 1; - stream->msg = "non-seekable source: " - "copy is too far back (try raising -B)"; - return XD3_TOOFARBACK; - } - - /* There's a chance here, that an genuine lseek error will cause - * xdelta3 to shift into non-seekable mode, entering a degraded - * condition. */ - if (!sfile->seek_failed && option_verbose) - { - XPR(NT "source can't seek, will use FIFO for %s\n", - sfile->filename); - - if (option_verbose > 1) - { - XPR(NT "seek error at offset %"Q"u: %s\n", - pos, xd3_mainerror (ret)); - } - } - - sfile->seek_failed = 1; - - if (option_verbose > 1 && pos != sfile->source_position) - { - XPR(NT "non-seekable source skipping %"Q"u bytes @ %"Q"u\n", - pos - sfile->source_position, - sfile->source_position); - } - - while (sfile->source_position < pos) - { - xoff_t skip_blkno; - usize_t skip_offset; - - xd3_blksize_div (sfile->source_position, source, - &skip_blkno, &skip_offset); - - /* Read past unused data */ - XD3_ASSERT (pos - sfile->source_position >= source->blksize); - XD3_ASSERT (skip_offset == 0); - - if ((ret = main_getblk_lru (source, skip_blkno, - & blru, & is_new))) - { - return ret; - } - - XD3_ASSERT (is_new); - blru->blkno = skip_blkno; - - if ((ret = main_read_primary_input (sfile, - (uint8_t*) blru->blk, - source->blksize, - & nread))) - { - return ret; - } - - if (nread != source->blksize) - { - IF_DEBUG1 (DP(RINT "[getblk] short skip block nread = %"Z"u\n", - nread)); - stream->msg = "non-seekable input is short"; - return XD3_INVALID_INPUT; - } - - sfile->source_position += nread; - blru->size = nread; - - IF_DEBUG1 (DP(RINT "[getblk] skip blkno %"Q"u size %u\n", - skip_blkno, blru->size)); - - XD3_ASSERT (sfile->source_position <= pos); - } - } - - return 0; -} - -/* This is the callback for reading a block of source. This function - * is blocking and it implements a small LRU. - * - * Note that it is possible for main_input() to handle getblk requests - * in a non-blocking manner. If the callback is NULL then the caller - * of xd3_*_input() must handle the XD3_GETSRCBLK return value and - * fill the source in the same way. See xd3_getblk for details. To - * see an example of non-blocking getblk, see xdelta-test.h. */ -static int -main_getblk_func (xd3_stream *stream, - xd3_source *source, - xoff_t blkno) -{ - int ret = 0; - xoff_t pos = blkno * source->blksize; - main_file *sfile = (main_file*) source->ioh; - main_blklru *blru; - int is_new; - size_t nread = 0; - - if (allow_fake_source) - { - source->curblkno = blkno; - source->onblk = 0; - source->curblk = lru[0].blk; - lru[0].size = 0; - return 0; - } - - if ((ret = main_getblk_lru (source, blkno, & blru, & is_new))) - { - return ret; - } - - if (!is_new) - { - source->curblkno = blkno; - source->onblk = blru->size; - source->curblk = blru->blk; - lru_hits++; - return 0; - } - - lru_misses += 1; - - if (pos != sfile->source_position) - { - /* Only try to seek when the position is wrong. This means the - * decoder will fail when the source buffer is too small, but - * only when the input is non-seekable. */ - if ((ret = main_read_seek_source (stream, source, blkno))) - { - return ret; - } - } - - XD3_ASSERT (sfile->source_position == pos); - - if ((ret = main_read_primary_input (sfile, - (uint8_t*) blru->blk, - source->blksize, - & nread))) - { - return ret; - } - - /* Save the last block read, used to handle non-seekable files. */ - sfile->source_position = pos + nread; - - if (option_verbose > 3) - { - if (blru->blkno != (xoff_t)-1) - { - if (blru->blkno != blkno) - { - XPR(NT "source block %"Q"u read %"Z"u ejects %"Q"u (lru_hits=%u, " - "lru_misses=%u, lru_filled=%u)\n", - blkno, nread, blru->blkno, lru_hits, lru_misses, lru_filled); - } - else - { - XPR(NT "source block %"Q"u read %"Z"u (lru_hits=%u, " - "lru_misses=%u, lru_filled=%u)\n", - blkno, nread, lru_hits, lru_misses, lru_filled); - } - } - else - { - XPR(NT "source block %"Q"u read %"Z"u (lru_hits=%u, lru_misses=%u, " - "lru_filled=%u)\n", blkno, nread, - lru_hits, lru_misses, lru_filled); - } - } - - source->curblk = blru->blk; - source->curblkno = blkno; - source->onblk = nread; - blru->size = nread; - blru->blkno = blkno; - - IF_DEBUG1 (DP(RINT "[main_getblk] blkno %"Q"u onblk %"Z"u pos %"Q"u " - "srcpos %"Q"u\n", - blkno, nread, pos, sfile->source_position)); - - return 0; -} diff --git a/extern/xdelta3/xdelta3-cfgs.h b/extern/xdelta3/xdelta3-cfgs.h deleted file mode 100644 index b13f7b0..0000000 --- a/extern/xdelta3/xdelta3-cfgs.h +++ /dev/null @@ -1,173 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/****************************************************************** - SOFT string matcher - ******************************************************************/ - -#if XD3_BUILD_SOFT - -#define TEMPLATE soft -#define LLOOK stream->smatcher.large_look -#define LSTEP stream->smatcher.large_step -#define SLOOK stream->smatcher.small_look -#define SCHAIN stream->smatcher.small_chain -#define SLCHAIN stream->smatcher.small_lchain -#define MAXLAZY stream->smatcher.max_lazy -#define LONGENOUGH stream->smatcher.long_enough - -#define SOFTCFG 1 -#include "xdelta3.c" -#undef SOFTCFG - -#undef TEMPLATE -#undef LLOOK -#undef SLOOK -#undef LSTEP -#undef SCHAIN -#undef SLCHAIN -#undef MAXLAZY -#undef LONGENOUGH -#endif - -#define SOFTCFG 0 - -/************************************************************ - FASTEST string matcher - **********************************************************/ -#if XD3_BUILD_FASTEST -#define TEMPLATE fastest -#define LLOOK 9 -#define LSTEP 26 -#define SLOOK 4U -#define SCHAIN 1 -#define SLCHAIN 1 -#define MAXLAZY 6 -#define LONGENOUGH 6 - -#include "xdelta3.c" - -#undef TEMPLATE -#undef LLOOK -#undef SLOOK -#undef LSTEP -#undef SCHAIN -#undef SLCHAIN -#undef MAXLAZY -#undef LONGENOUGH -#endif - -/************************************************************ - FASTER string matcher - **********************************************************/ -#if XD3_BUILD_FASTER -#define TEMPLATE faster -#define LLOOK 9 -#define LSTEP 15 -#define SLOOK 4U -#define SCHAIN 1 -#define SLCHAIN 1 -#define MAXLAZY 18 -#define LONGENOUGH 18 - -#include "xdelta3.c" - -#undef TEMPLATE -#undef LLOOK -#undef SLOOK -#undef LSTEP -#undef SCHAIN -#undef SLCHAIN -#undef MAXLAZY -#undef LONGENOUGH -#endif - -/****************************************************** - FAST string matcher - ********************************************************/ -#if XD3_BUILD_FAST -#define TEMPLATE fast -#define LLOOK 9 -#define LSTEP 8 -#define SLOOK 4U -#define SCHAIN 4 -#define SLCHAIN 1 -#define MAXLAZY 18 -#define LONGENOUGH 35 - -#include "xdelta3.c" - -#undef TEMPLATE -#undef LLOOK -#undef SLOOK -#undef LSTEP -#undef SCHAIN -#undef SLCHAIN -#undef MAXLAZY -#undef LONGENOUGH -#endif - -/************************************************** - SLOW string matcher - **************************************************************/ -#if XD3_BUILD_SLOW -#define TEMPLATE slow -#define LLOOK 9 -#define LSTEP 2 -#define SLOOK 4U -#define SCHAIN 44 -#define SLCHAIN 13 -#define MAXLAZY 90 -#define LONGENOUGH 70 - -#include "xdelta3.c" - -#undef TEMPLATE -#undef LLOOK -#undef SLOOK -#undef LSTEP -#undef SCHAIN -#undef SLCHAIN -#undef MAXLAZY -#undef LONGENOUGH -#endif - -/******************************************************** - DEFAULT string matcher - ************************************************************/ -#if XD3_BUILD_DEFAULT -#define TEMPLATE default -#define LLOOK 9 -#define LSTEP 3 -#define SLOOK 4U -#define SCHAIN 8 -#define SLCHAIN 2 -#define MAXLAZY 36 -#define LONGENOUGH 70 - -#include "xdelta3.c" - -#undef TEMPLATE -#undef LLOOK -#undef SLOOK -#undef LSTEP -#undef SCHAIN -#undef SLCHAIN -#undef MAXLAZY -#undef LONGENOUGH -#endif diff --git a/extern/xdelta3/xdelta3-decode.h b/extern/xdelta3/xdelta3-decode.h deleted file mode 100644 index 65877a4..0000000 --- a/extern/xdelta3/xdelta3-decode.h +++ /dev/null @@ -1,1221 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, - * 2011, 2012, 2013, 2014, 2015. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _XDELTA3_DECODE_H_ -#define _XDELTA3_DECODE_H_ - -#include "xdelta3-internal.h" - -#define SRCORTGT(x) ((((x) & VCD_SRCORTGT) == VCD_SOURCE) ? \ - VCD_SOURCE : ((((x) & VCD_SRCORTGT) == \ - VCD_TARGET) ? VCD_TARGET : 0)) - -static inline int -xd3_decode_byte (xd3_stream *stream, usize_t *val) -{ - if (stream->avail_in == 0) - { - stream->msg = "further input required"; - return XD3_INPUT; - } - - (*val) = stream->next_in[0]; - - DECODE_INPUT (1); - return 0; -} - -static inline int -xd3_decode_bytes (xd3_stream *stream, uint8_t *buf, usize_t *pos, usize_t size) -{ - usize_t want; - usize_t take; - - /* Note: The case where (*pos == size) happens when a zero-length - * appheader or code table is transmitted, but there is nothing in - * the standard against that. */ - while (*pos < size) - { - if (stream->avail_in == 0) - { - stream->msg = "further input required"; - return XD3_INPUT; - } - - want = size - *pos; - take = xd3_min (want, stream->avail_in); - - memcpy (buf + *pos, stream->next_in, (size_t) take); - - DECODE_INPUT (take); - (*pos) += take; - } - - return 0; -} - -/* Initialize the decoder for a new window. The dec_tgtlen value is - * preserved across successive window decodings, and the update to - * dec_winstart is delayed until a new window actually starts. This - * is to avoid throwing an error due to overflow until the last - * possible moment. This makes it possible to encode exactly 4GB - * through a 32-bit encoder. */ -static int -xd3_decode_init_window (xd3_stream *stream) -{ - stream->dec_cpylen = 0; - stream->dec_cpyoff = 0; - stream->dec_cksumbytes = 0; - - xd3_init_cache (& stream->acache); - - return 0; -} - -/* Allocates buffer space for the target window and possibly the - * VCD_TARGET copy-window. Also sets the base of the two copy - * segments. */ -static int -xd3_decode_setup_buffers (xd3_stream *stream) -{ - /* If VCD_TARGET is set then the previous buffer may be reused. */ - if (stream->dec_win_ind & VCD_TARGET) - { - /* Note: this implementation is untested, since Xdelta3 itself - * does not implement an encoder for VCD_TARGET mode. Thus, mark - * unimplemented until needed. */ - if (1) - { - stream->msg = "VCD_TARGET not implemented"; - return XD3_UNIMPLEMENTED; - } - - /* But this implementation only supports copying from the last - * target window. If the offset is outside that range, it can't - * be done. */ - if (stream->dec_cpyoff < stream->dec_laststart) - { - stream->msg = "unsupported VCD_TARGET offset"; - return XD3_INVALID_INPUT; - } - - /* See if the two windows are the same. This indicates the - * first time VCD_TARGET is used. This causes a second buffer - * to be allocated, after that the two are swapped in the - * DEC_FINISH case. */ - if (stream->dec_lastwin == stream->next_out) - { - stream->next_out = NULL; - stream->space_out = 0; - } - - /* TODO: (See note above, this looks incorrect) */ - stream->dec_cpyaddrbase = stream->dec_lastwin + - (usize_t) (stream->dec_cpyoff - stream->dec_laststart); - } - - /* See if the current output window is large enough. */ - if (stream->space_out < stream->dec_tgtlen) - { - xd3_free (stream, stream->dec_buffer); - - stream->space_out = - xd3_round_blksize (stream->dec_tgtlen, XD3_ALLOCSIZE); - - if ((stream->dec_buffer = - (uint8_t*) xd3_alloc (stream, stream->space_out, 1)) == NULL) - { - return ENOMEM; - } - - stream->next_out = stream->dec_buffer; - } - - /* dec_tgtaddrbase refers to an invalid base address, but it is - * always used with a sufficiently large instruction offset (i.e., - * beyond the copy window). This condition is enforced by - * xd3_decode_output_halfinst. */ - stream->dec_tgtaddrbase = stream->next_out - stream->dec_cpylen; - - return 0; -} - -static int -xd3_decode_allocate (xd3_stream *stream, - usize_t size, - uint8_t **buf_ptr, - usize_t *buf_alloc) -{ - IF_DEBUG2 (DP(RINT "[xd3_decode_allocate] size %u alloc %u\n", - size, *buf_alloc)); - - if (*buf_ptr != NULL && *buf_alloc < size) - { - xd3_free (stream, *buf_ptr); - *buf_ptr = NULL; - } - - if (*buf_ptr == NULL) - { - *buf_alloc = xd3_round_blksize (size, XD3_ALLOCSIZE); - - if ((*buf_ptr = (uint8_t*) xd3_alloc (stream, *buf_alloc, 1)) == NULL) - { - return ENOMEM; - } - } - - return 0; -} - -static int -xd3_decode_section (xd3_stream *stream, - xd3_desect *section, - xd3_decode_state nstate, - int copy) -{ - XD3_ASSERT (section->pos <= section->size); - XD3_ASSERT (stream->dec_state != nstate); - - if (section->pos < section->size) - { - usize_t sect_take; - - if (stream->avail_in == 0) - { - return XD3_INPUT; - } - - if ((copy == 0) && (section->pos == 0)) - { - /* No allocation/copy needed */ - section->buf = stream->next_in; - sect_take = section->size; - IF_DEBUG1 (DP(RINT "[xd3_decode_section] zerocopy %u @ %u avail %u\n", - sect_take, section->pos, stream->avail_in)); - } - else - { - usize_t sect_need = section->size - section->pos; - - /* Allocate and copy */ - sect_take = xd3_min (sect_need, stream->avail_in); - - if (section->pos == 0) - { - int ret; - - if ((ret = xd3_decode_allocate (stream, - section->size, - & section->copied1, - & section->alloc1))) - { - return ret; - } - - section->buf = section->copied1; - } - - IF_DEBUG2 (DP(RINT "[xd3_decode_section] take %u @ %u [need %u] avail %u\n", - sect_take, section->pos, sect_need, stream->avail_in)); - XD3_ASSERT (section->pos + sect_take <= section->alloc1); - - memcpy (section->copied1 + section->pos, - stream->next_in, - sect_take); - } - - section->pos += sect_take; - - stream->dec_winbytes += sect_take; - - DECODE_INPUT (sect_take); - } - - if (section->pos < section->size) - { - IF_DEBUG1 (DP(RINT "[xd3_decode_section] further input required %u\n", section->size - section->pos)); - stream->msg = "further input required"; - return XD3_INPUT; - } - - XD3_ASSERT (section->pos == section->size); - - stream->dec_state = nstate; - section->buf_max = section->buf + section->size; - section->pos = 0; - return 0; -} - -/* Decode the size and address for half of an instruction (i.e., a - * single opcode). This updates the stream->dec_position, which are - * bytes already output prior to processing this instruction. Perform - * bounds checking for sizes and copy addresses, which uses the - * dec_position (which is why these checks are done here). */ -static int -xd3_decode_parse_halfinst (xd3_stream *stream, xd3_hinst *inst) -{ - int ret; - - /* If the size from the instruction table is zero then read a size value. */ - if ((inst->size == 0) && - (ret = xd3_read_size (stream, - & stream->inst_sect.buf, - stream->inst_sect.buf_max, - & inst->size))) - { - return XD3_INVALID_INPUT; - } - - /* For copy instructions, read address. */ - if (inst->type >= XD3_CPY) - { - IF_DEBUG2 ({ - static int cnt = 0; - XPR(NT "DECODE:%u: COPY at %"Q"u (winoffset %u) size %u winaddr %u\n", - cnt++, - stream->total_out + (stream->dec_position - - stream->dec_cpylen), - (stream->dec_position - stream->dec_cpylen), - inst->size, - inst->addr); - }); - - if ((ret = xd3_decode_address (stream, - stream->dec_position, - inst->type - XD3_CPY, - & stream->addr_sect.buf, - stream->addr_sect.buf_max, - & inst->addr))) - { - return ret; - } - - /* Cannot copy an address before it is filled-in. */ - if (inst->addr >= stream->dec_position) - { - stream->msg = "address too large"; - return XD3_INVALID_INPUT; - } - - /* Check: a VCD_TARGET or VCD_SOURCE copy cannot exceed the remaining - * buffer space in its own segment. */ - if (inst->addr < stream->dec_cpylen && - inst->addr + inst->size > stream->dec_cpylen) - { - stream->msg = "size too large"; - return XD3_INVALID_INPUT; - } - } - else - { - IF_DEBUG2 ({ - if (inst->type == XD3_ADD) - { - static int cnt; - XPR(NT "DECODE:%d: ADD at %"Q"u (winoffset %u) size %u\n", - cnt++, - (stream->total_out + stream->dec_position - stream->dec_cpylen), - stream->dec_position - stream->dec_cpylen, - inst->size); - } - else - { - static int cnt; - XD3_ASSERT (inst->type == XD3_RUN); - XPR(NT "DECODE:%d: RUN at %"Q"u (winoffset %u) size %u\n", - cnt++, - stream->total_out + stream->dec_position - stream->dec_cpylen, - stream->dec_position - stream->dec_cpylen, - inst->size); - } - }); - } - - /* Check: The instruction will not overflow the output buffer. */ - if (stream->dec_position + inst->size > stream->dec_maxpos) - { - stream->msg = "size too large"; - return XD3_INVALID_INPUT; - } - - stream->dec_position += inst->size; - return 0; -} - -/* Decode a single opcode and then decode the two half-instructions. */ -static int -xd3_decode_instruction (xd3_stream *stream) -{ - int ret; - const xd3_dinst *inst; - - if (stream->inst_sect.buf == stream->inst_sect.buf_max) - { - stream->msg = "instruction underflow"; - return XD3_INVALID_INPUT; - } - - inst = &stream->code_table[*stream->inst_sect.buf++]; - - stream->dec_current1.type = inst->type1; - stream->dec_current2.type = inst->type2; - stream->dec_current1.size = inst->size1; - stream->dec_current2.size = inst->size2; - - /* For each instruction with a real operation, decode the - * corresponding size and addresses if necessary. Assume a - * code-table may have NOOP in either position, although this is - * unlikely. */ - if (inst->type1 != XD3_NOOP && - (ret = xd3_decode_parse_halfinst (stream, & stream->dec_current1))) - { - return ret; - } - if (inst->type2 != XD3_NOOP && - (ret = xd3_decode_parse_halfinst (stream, & stream->dec_current2))) - { - return ret; - } - return 0; -} - -/* Output the result of a single half-instruction. OPT: This the - decoder hotspot. Modifies "hinst", see below. */ -static int -xd3_decode_output_halfinst (xd3_stream *stream, xd3_hinst *inst) -{ - /* This method is reentrant for copy instructions which may return - * XD3_GETSRCBLK to the caller. Each time through a copy takes the - * minimum of inst->size and the available space on whichever block - * supplies the data */ - usize_t take = inst->size; - - if (USIZE_T_OVERFLOW (stream->avail_out, take) || - stream->avail_out + take > stream->space_out) - { - stream->msg = "overflow while decoding"; - return XD3_INVALID_INPUT; - } - - XD3_ASSERT (inst->type != XD3_NOOP); - - switch (inst->type) - { - case XD3_RUN: - { - /* Only require a single data byte. */ - if (stream->data_sect.buf == stream->data_sect.buf_max) - { - stream->msg = "data underflow"; - return XD3_INVALID_INPUT; - } - - memset (stream->next_out + stream->avail_out, - stream->data_sect.buf[0], - take); - - stream->data_sect.buf += 1; - stream->avail_out += take; - inst->type = XD3_NOOP; - break; - } - case XD3_ADD: - { - /* Require at least TAKE data bytes. */ - if (stream->data_sect.buf + take > stream->data_sect.buf_max) - { - stream->msg = "data underflow"; - return XD3_INVALID_INPUT; - } - - memcpy (stream->next_out + stream->avail_out, - stream->data_sect.buf, - take); - - stream->data_sect.buf += take; - stream->avail_out += take; - inst->type = XD3_NOOP; - break; - } - default: - { - usize_t i; - const uint8_t *src; - uint8_t *dst; - int overlap; - - /* See if it copies from the VCD_TARGET/VCD_SOURCE window or - * the target window. Out-of-bounds checks for the addresses - * and sizes are performed in xd3_decode_parse_halfinst. This - * if/else must set "overlap", "src", and "dst". */ - if (inst->addr < stream->dec_cpylen) - { - /* In both branches we are copying from outside the - * current decoder window, the first (VCD_TARGET) is - * unimplemented. */ - overlap = 0; - - /* This branch sets "src". As a side-effect, we modify - * "inst" so that if we reenter this method after a - * XD3_GETSRCBLK response the state is correct. So if the - * instruction can be fulfilled by a contiguous block of - * memory then we will set: - * - * inst->type = XD3_NOOP; - * inst->size = 0; - */ - if (stream->dec_win_ind & VCD_TARGET) - { - /* TODO: Users have requested long-distance copies of - * similar material within a target (e.g., for dup - * supression in backups). This code path is probably - * dead due to XD3_UNIMPLEMENTED in xd3_decode_setup_buffers */ - inst->size = 0; - inst->type = XD3_NOOP; - stream->msg = "VCD_TARGET not implemented"; - return XD3_UNIMPLEMENTED; - } - else - { - /* In this case we have to read a source block, which - * could return control to the caller. We need to - * know the first block number needed for this - * copy. */ - xd3_source *source = stream->src; - xoff_t block = source->cpyoff_blocks; - usize_t blkoff = source->cpyoff_blkoff; - const usize_t blksize = source->blksize; - int ret; - - xd3_blksize_add (&block, &blkoff, source, inst->addr); - XD3_ASSERT (blkoff < blksize); - - if ((ret = xd3_getblk (stream, block))) - { - /* could be a XD3_GETSRCBLK failure. */ - if (ret == XD3_TOOFARBACK) - { - stream->msg = "non-seekable source in decode"; - ret = XD3_INTERNAL; - } - return ret; - } - - src = source->curblk + blkoff; - - /* This block is either full, or a partial block that - * must contain enough bytes. */ - if ((source->onblk != blksize) && - (blkoff + take > source->onblk)) - { - IF_DEBUG1 (XPR(NT "[srcfile] short at blkno %"Q"u onblk " - "%u blksize %u blkoff %u take %u\n", - block, - source->onblk, - blksize, - blkoff, - take)); - stream->msg = "source file too short"; - return XD3_INVALID_INPUT; - } - - XD3_ASSERT (blkoff != blksize); - - /* Check if we have enough data on this block to - * finish the instruction. */ - if (blkoff + take <= blksize) - { - inst->type = XD3_NOOP; - inst->size = 0; - } - else - { - take = blksize - blkoff; - inst->size -= take; - inst->addr += take; - - /* because (blkoff + take > blksize), above */ - XD3_ASSERT (inst->size != 0); - } - } - } - else - { - /* TODO: the memcpy/overlap optimization, etc. Overlap - * here could be more specific, it's whether (inst->addr - - * srclen) + inst->size > input_pos ? And is the system - * memcpy really any good? */ - overlap = 1; - - /* For a target-window copy, we know the entire range is - * in-memory. The dec_tgtaddrbase is negatively offset by - * dec_cpylen because the addresses start beyond that - * point. */ - src = stream->dec_tgtaddrbase + inst->addr; - inst->type = XD3_NOOP; - inst->size = 0; - } - - dst = stream->next_out + stream->avail_out; - - stream->avail_out += take; - - if (overlap) - { - /* Can't just memcpy here due to possible overlap. */ - for (i = take; i != 0; i -= 1) - { - *dst++ = *src++; - } - } - else - { - memcpy (dst, src, take); - } - } - } - - return 0; -} - -static int -xd3_decode_finish_window (xd3_stream *stream) -{ - stream->dec_winbytes = 0; - stream->dec_state = DEC_FINISH; - - stream->data_sect.pos = 0; - stream->inst_sect.pos = 0; - stream->addr_sect.pos = 0; - - return XD3_OUTPUT; -} - -static int -xd3_decode_secondary_sections (xd3_stream *secondary_stream) -{ -#if SECONDARY_ANY - int ret; -#define DECODE_SECONDARY_SECTION(UPPER,LOWER) \ - ((secondary_stream->dec_del_ind & VCD_ ## UPPER ## COMP) && \ - (ret = xd3_decode_secondary (secondary_stream, \ - & secondary_stream-> LOWER ## _sect, \ - & xd3_sec_ ## LOWER (secondary_stream)))) - - if (DECODE_SECONDARY_SECTION (DATA, data) || - DECODE_SECONDARY_SECTION (INST, inst) || - DECODE_SECONDARY_SECTION (ADDR, addr)) - { - return ret; - } -#undef DECODE_SECONDARY_SECTION -#endif - return 0; -} - -static int -xd3_decode_sections (xd3_stream *stream) -{ - usize_t need, more, take; - int copy, ret; - - if ((stream->flags & XD3_JUST_HDR) != 0) - { - /* Nothing left to do. */ - return xd3_decode_finish_window (stream); - } - - /* To avoid extra copying, allocate three sections at once (but - * check for overflow). */ - need = stream->inst_sect.size; - - if (USIZE_T_OVERFLOW (need, stream->addr_sect.size)) - { - stream->msg = "decoder section size overflow"; - return XD3_INTERNAL; - } - need += stream->addr_sect.size; - - if (USIZE_T_OVERFLOW (need, stream->data_sect.size)) - { - stream->msg = "decoder section size overflow"; - return XD3_INTERNAL; - } - need += stream->data_sect.size; - - /* The window may be entirely processed. */ - XD3_ASSERT (stream->dec_winbytes <= need); - - /* Compute how much more input is needed. */ - more = (need - stream->dec_winbytes); - - /* How much to consume. */ - take = xd3_min (more, stream->avail_in); - - /* See if the input is completely available, to avoid copy. */ - copy = (take != more); - - /* If the window is skipped... */ - if ((stream->flags & XD3_SKIP_WINDOW) != 0) - { - /* Skip the available input. */ - DECODE_INPUT (take); - - stream->dec_winbytes += take; - - if (copy) - { - stream->msg = "further input required"; - return XD3_INPUT; - } - - return xd3_decode_finish_window (stream); - } - - /* Process all but the DATA section. */ - switch (stream->dec_state) - { - default: - stream->msg = "internal error"; - return XD3_INVALID_INPUT; - - case DEC_DATA: - if ((ret = xd3_decode_section (stream, & stream->data_sect, - DEC_INST, copy))) { return ret; } - case DEC_INST: - if ((ret = xd3_decode_section (stream, & stream->inst_sect, - DEC_ADDR, copy))) { return ret; } - case DEC_ADDR: - if ((ret = xd3_decode_section (stream, & stream->addr_sect, - DEC_EMIT, copy))) { return ret; } - } - - XD3_ASSERT (stream->dec_winbytes == need); - - if ((ret = xd3_decode_secondary_sections (stream))) { return ret; } - - if (stream->flags & XD3_SKIP_EMIT) - { - return xd3_decode_finish_window (stream); - } - - /* OPT: A possible optimization is to avoid allocating memory in - * decode_setup_buffers and to avoid a large memcpy when the window - * consists of a single VCD_SOURCE copy instruction. */ - if ((ret = xd3_decode_setup_buffers (stream))) { return ret; } - - return 0; -} - -static int -xd3_decode_emit (xd3_stream *stream) -{ - int ret; - - /* Produce output: originally structured to allow reentrant code - * that fills as much of the output buffer as possible, but VCDIFF - * semantics allows to copy from anywhere from the target window, so - * instead allocate a sufficiently sized buffer after the target - * window length is decoded. - * - * This code still needs to be reentrant to allow XD3_GETSRCBLK to - * return control. This is handled by setting the - * stream->dec_currentN instruction types to XD3_NOOP after they - * have been processed. */ - XD3_ASSERT (! (stream->flags & XD3_SKIP_EMIT)); - XD3_ASSERT (stream->dec_tgtlen <= stream->space_out); - - while (stream->inst_sect.buf != stream->inst_sect.buf_max || - stream->dec_current1.type != XD3_NOOP || - stream->dec_current2.type != XD3_NOOP) - { - /* Decode next instruction pair. */ - if ((stream->dec_current1.type == XD3_NOOP) && - (stream->dec_current2.type == XD3_NOOP) && - (ret = xd3_decode_instruction (stream))) { return ret; } - - /* Output dec_current1 */ - while ((stream->dec_current1.type != XD3_NOOP)) - { - if ((ret = xd3_decode_output_halfinst (stream, & stream->dec_current1))) - { - return ret; - } - } - /* Output dec_current2 */ - while (stream->dec_current2.type != XD3_NOOP) - { - if ((ret = xd3_decode_output_halfinst (stream, & stream->dec_current2))) - { - return ret; - } - } - } - - if (stream->avail_out != stream->dec_tgtlen) - { - IF_DEBUG2 (DP(RINT "AVAIL_OUT(%d) != DEC_TGTLEN(%d)\n", - stream->avail_out, stream->dec_tgtlen)); - stream->msg = "wrong window length"; - return XD3_INVALID_INPUT; - } - - if (stream->data_sect.buf != stream->data_sect.buf_max) - { - stream->msg = "extra data section"; - return XD3_INVALID_INPUT; - } - - if (stream->addr_sect.buf != stream->addr_sect.buf_max) - { - stream->msg = "extra address section"; - return XD3_INVALID_INPUT; - } - - /* OPT: Should cksum computation be combined with the above loop? */ - if ((stream->dec_win_ind & VCD_ADLER32) != 0 && - (stream->flags & XD3_ADLER32_NOVER) == 0) - { - uint32_t a32 = adler32 (1L, stream->next_out, stream->avail_out); - - if (a32 != stream->dec_adler32) - { - stream->msg = "target window checksum mismatch"; - return XD3_INVALID_INPUT; - } - } - - /* Finished with a window. */ - return xd3_decode_finish_window (stream); -} - -int -xd3_decode_input (xd3_stream *stream) -{ - int ret; - - if (stream->enc_state != 0) - { - stream->msg = "encoder/decoder transition"; - return XD3_INVALID_INPUT; - } - -#define BYTE_CASE(expr,x,nstate) \ - do { \ - if ( (expr) && \ - ((ret = xd3_decode_byte (stream, & (x))) != 0) ) { return ret; } \ - stream->dec_state = (nstate); \ - } while (0) - -#define OFFSET_CASE(expr,x,nstate) \ - do { \ - if ( (expr) && \ - ((ret = xd3_decode_offset (stream, & (x))) != 0) ) { return ret; } \ - stream->dec_state = (nstate); \ - } while (0) - -#define SIZE_CASE(expr,x,nstate) \ - do { \ - if ( (expr) && \ - ((ret = xd3_decode_size (stream, & (x))) != 0) ) { return ret; } \ - stream->dec_state = (nstate); \ - } while (0) - - switch (stream->dec_state) - { - case DEC_VCHEAD: - { - if ((ret = xd3_decode_bytes (stream, stream->dec_magic, - & stream->dec_magicbytes, 4))) - { - return ret; - } - - if (stream->dec_magic[0] != VCDIFF_MAGIC1 || - stream->dec_magic[1] != VCDIFF_MAGIC2 || - stream->dec_magic[2] != VCDIFF_MAGIC3) - { - stream->msg = "not a VCDIFF input"; - return XD3_INVALID_INPUT; - } - - if (stream->dec_magic[3] != 0) - { - stream->msg = "VCDIFF input version > 0 is not supported"; - return XD3_INVALID_INPUT; - } - - stream->dec_state = DEC_HDRIND; - } - case DEC_HDRIND: - { - if ((ret = xd3_decode_byte (stream, & stream->dec_hdr_ind))) - { - return ret; - } - - if ((stream->dec_hdr_ind & VCD_INVHDR) != 0) - { - stream->msg = "unrecognized header indicator bits set"; - return XD3_INVALID_INPUT; - } - - stream->dec_state = DEC_SECONDID; - } - - case DEC_SECONDID: - /* Secondary compressor ID: only if VCD_SECONDARY is set */ - if ((stream->dec_hdr_ind & VCD_SECONDARY) != 0) - { - BYTE_CASE (1, stream->dec_secondid, DEC_TABLEN); - - switch (stream->dec_secondid) - { - case VCD_FGK_ID: - FGK_CASE (stream); - case VCD_DJW_ID: - DJW_CASE (stream); - case VCD_LZMA_ID: - LZMA_CASE (stream); - default: - stream->msg = "unknown secondary compressor ID"; - return XD3_INVALID_INPUT; - } - } - - case DEC_TABLEN: - /* Length of code table data: only if VCD_CODETABLE is set */ - SIZE_CASE ((stream->dec_hdr_ind & VCD_CODETABLE) != 0, - stream->dec_codetblsz, DEC_NEAR); - - /* The codetblsz counts the two NEAR/SAME bytes */ - if ((stream->dec_hdr_ind & VCD_CODETABLE) != 0) { - if (stream->dec_codetblsz <= 2) { - stream->msg = "invalid code table size"; - return ENOMEM; - } - stream->dec_codetblsz -= 2; - } - case DEC_NEAR: - /* Near modes: only if VCD_CODETABLE is set */ - BYTE_CASE((stream->dec_hdr_ind & VCD_CODETABLE) != 0, - stream->acache.s_near, DEC_SAME); - case DEC_SAME: - /* Same modes: only if VCD_CODETABLE is set */ - BYTE_CASE((stream->dec_hdr_ind & VCD_CODETABLE) != 0, - stream->acache.s_same, DEC_TABDAT); - case DEC_TABDAT: - /* Compressed code table data */ - - if ((stream->dec_hdr_ind & VCD_CODETABLE) != 0) - { - stream->msg = "VCD_CODETABLE support was removed"; - return XD3_UNIMPLEMENTED; - } - else - { - /* Use the default table. */ - stream->acache.s_near = __rfc3284_code_table_desc.near_modes; - stream->acache.s_same = __rfc3284_code_table_desc.same_modes; - stream->code_table = xd3_rfc3284_code_table (); - } - - if ((ret = xd3_alloc_cache (stream))) { return ret; } - - stream->dec_state = DEC_APPLEN; - - case DEC_APPLEN: - /* Length of application data */ - SIZE_CASE((stream->dec_hdr_ind & VCD_APPHEADER) != 0, - stream->dec_appheadsz, DEC_APPDAT); - - case DEC_APPDAT: - /* Application data */ - if (stream->dec_hdr_ind & VCD_APPHEADER) - { - /* Note: we add an additional byte for padding, to allow - 0-termination. Check for overflow: */ - if (USIZE_T_OVERFLOW(stream->dec_appheadsz, 1)) - { - stream->msg = "exceptional appheader size"; - return XD3_INVALID_INPUT; - } - - if ((stream->dec_appheader == NULL) && - (stream->dec_appheader = - (uint8_t*) xd3_alloc (stream, - stream->dec_appheadsz+1, 1)) == NULL) - { - return ENOMEM; - } - - stream->dec_appheader[stream->dec_appheadsz] = 0; - - if ((ret = xd3_decode_bytes (stream, stream->dec_appheader, - & stream->dec_appheadbytes, - stream->dec_appheadsz))) - { - return ret; - } - } - - /* xoff_t -> usize_t is safe because this is the first block. */ - stream->dec_hdrsize = (usize_t) stream->total_in; - stream->dec_state = DEC_WININD; - - case DEC_WININD: - { - /* Start of a window: the window indicator */ - if ((ret = xd3_decode_byte (stream, & stream->dec_win_ind))) - { - return ret; - } - - stream->current_window = stream->dec_window_count; - - if (XOFF_T_OVERFLOW (stream->dec_winstart, stream->dec_tgtlen)) - { - stream->msg = "decoder file offset overflow"; - return XD3_INVALID_INPUT; - } - - stream->dec_winstart += stream->dec_tgtlen; - - if ((stream->dec_win_ind & VCD_INVWIN) != 0) - { - stream->msg = "unrecognized window indicator bits set"; - return XD3_INVALID_INPUT; - } - - if ((ret = xd3_decode_init_window (stream))) { return ret; } - - stream->dec_state = DEC_CPYLEN; - - IF_DEBUG2 (DP(RINT "--------- TARGET WINDOW %"Q"u -----------\n", - stream->current_window)); - } - - case DEC_CPYLEN: - /* Copy window length: only if VCD_SOURCE or VCD_TARGET is set */ - SIZE_CASE(SRCORTGT (stream->dec_win_ind), stream->dec_cpylen, - DEC_CPYOFF); - - /* Set the initial, logical decoder position (HERE address) in - * dec_position. This is set to just after the source/copy - * window, as we are just about to output the first byte of - * target window. */ - stream->dec_position = stream->dec_cpylen; - - case DEC_CPYOFF: - /* Copy window offset: only if VCD_SOURCE or VCD_TARGET is set */ - - OFFSET_CASE(SRCORTGT (stream->dec_win_ind), stream->dec_cpyoff, - DEC_ENCLEN); - - /* Copy offset and copy length may not overflow. */ - if (XOFF_T_OVERFLOW (stream->dec_cpyoff, stream->dec_cpylen)) - { - stream->msg = "decoder copy window overflows a file offset"; - return XD3_INVALID_INPUT; - } - - /* Check copy window bounds: VCD_TARGET window may not exceed - current position. */ - if ((stream->dec_win_ind & VCD_TARGET) && - (stream->dec_cpyoff + (xoff_t) stream->dec_cpylen > - stream->dec_winstart)) - { - stream->msg = "VCD_TARGET window out of bounds"; - return XD3_INVALID_INPUT; - } - - case DEC_ENCLEN: - /* Length of the delta encoding */ - SIZE_CASE(1, stream->dec_enclen, DEC_TGTLEN); - case DEC_TGTLEN: - /* Length of target window */ - SIZE_CASE(1, stream->dec_tgtlen, DEC_DELIND); - - /* Set the maximum decoder position, beyond which we should not - * decode any data. This is the maximum value for dec_position. - * This may not exceed the size of a usize_t. */ - if (USIZE_T_OVERFLOW (stream->dec_cpylen, stream->dec_tgtlen)) - { - stream->msg = "decoder target window overflows a usize_t"; - return XD3_INVALID_INPUT; - } - - /* Check for malicious files. */ - if (stream->dec_tgtlen > XD3_HARDMAXWINSIZE) - { - stream->msg = "hard window size exceeded"; - return XD3_INVALID_INPUT; - } - - stream->dec_maxpos = stream->dec_cpylen + stream->dec_tgtlen; - - case DEC_DELIND: - /* Delta indicator */ - BYTE_CASE(1, stream->dec_del_ind, DEC_DATALEN); - - if ((stream->dec_del_ind & VCD_INVDEL) != 0) - { - stream->msg = "unrecognized delta indicator bits set"; - return XD3_INVALID_INPUT; - } - - /* Delta indicator is only used with secondary compression. */ - if ((stream->dec_del_ind != 0) && (stream->sec_type == NULL)) - { - stream->msg = "invalid delta indicator bits set"; - return XD3_INVALID_INPUT; - } - - /* Section lengths */ - case DEC_DATALEN: - SIZE_CASE(1, stream->data_sect.size, DEC_INSTLEN); - case DEC_INSTLEN: - SIZE_CASE(1, stream->inst_sect.size, DEC_ADDRLEN); - case DEC_ADDRLEN: - SIZE_CASE(1, stream->addr_sect.size, DEC_CKSUM); - - case DEC_CKSUM: - /* Window checksum. */ - if ((stream->dec_win_ind & VCD_ADLER32) != 0) - { - int i; - - if ((ret = xd3_decode_bytes (stream, stream->dec_cksum, - & stream->dec_cksumbytes, 4))) - { - return ret; - } - - for (i = 0; i < 4; i += 1) - { - stream->dec_adler32 = - (stream->dec_adler32 << 8) | stream->dec_cksum[i]; - } - } - - stream->dec_state = DEC_DATA; - - /* Check dec_enclen for redundency, otherwise it is not really used. */ - { - usize_t enclen_check = - (1 + (xd3_sizeof_size (stream->dec_tgtlen) + - xd3_sizeof_size (stream->data_sect.size) + - xd3_sizeof_size (stream->inst_sect.size) + - xd3_sizeof_size (stream->addr_sect.size)) + - stream->data_sect.size + - stream->inst_sect.size + - stream->addr_sect.size + - ((stream->dec_win_ind & VCD_ADLER32) ? 4 : 0)); - - if (stream->dec_enclen != enclen_check) - { - stream->msg = "incorrect encoding length (redundent)"; - return XD3_INVALID_INPUT; - } - } - - /* Returning here gives the application a chance to inspect the - * header, skip the window, etc. */ - if (stream->current_window == 0) { return XD3_GOTHEADER; } - else { return XD3_WINSTART; } - - case DEC_DATA: - case DEC_INST: - case DEC_ADDR: - /* Next read the three sections. */ - if ((ret = xd3_decode_sections (stream))) { return ret; } - - case DEC_EMIT: - - /* To speed VCD_SOURCE block-address calculations, the source - * cpyoff_blocks and cpyoff_blkoff are pre-computed. */ - if (stream->dec_win_ind & VCD_SOURCE) - { - xd3_source *src = stream->src; - - if (src == NULL) - { - stream->msg = "source input required"; - return XD3_INVALID_INPUT; - } - - xd3_blksize_div(stream->dec_cpyoff, src, - &src->cpyoff_blocks, - &src->cpyoff_blkoff); - - IF_DEBUG2(DP(RINT - "[decode_cpyoff] %"Q"u " - "cpyblkno %"Q"u " - "cpyblkoff %u " - "blksize %u\n", - stream->dec_cpyoff, - src->cpyoff_blocks, - src->cpyoff_blkoff, - src->blksize)); - } - - /* xd3_decode_emit returns XD3_OUTPUT on every success. */ - if ((ret = xd3_decode_emit (stream)) == XD3_OUTPUT) - { - stream->total_out += (xoff_t) stream->avail_out; - } - - return ret; - - case DEC_FINISH: - { - if (stream->dec_win_ind & VCD_TARGET) - { - if (stream->dec_lastwin == NULL) - { - stream->dec_lastwin = stream->next_out; - stream->dec_lastspace = stream->space_out; - } - else - { - xd3_swap_uint8p (& stream->dec_lastwin, - & stream->next_out); - xd3_swap_usize_t (& stream->dec_lastspace, - & stream->space_out); - } - } - - stream->dec_lastlen = stream->dec_tgtlen; - stream->dec_laststart = stream->dec_winstart; - stream->dec_window_count += 1; - - /* Note: the updates to dec_winstart & current_window are - * deferred until after the next DEC_WININD byte is read. */ - stream->dec_state = DEC_WININD; - return XD3_WINFINISH; - } - - default: - stream->msg = "invalid state"; - return XD3_INVALID_INPUT; - } -} - -#endif // _XDELTA3_DECODE_H_ diff --git a/extern/xdelta3/xdelta3-djw.h b/extern/xdelta3/xdelta3-djw.h deleted file mode 100644 index f69cb1d..0000000 --- a/extern/xdelta3/xdelta3-djw.h +++ /dev/null @@ -1,1841 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2002, 2006, 2007. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* TODO: This code needs a thorough round of commenting. There is - * some slop in the declaration of arrays, which are maybe one element - * larger than they need to be and comments would help clear it up. */ - -#ifndef _XDELTA3_DJW_H_ -#define _XDELTA3_DJW_H_ - -/* The following people deserve much credit for the algorithms and - * techniques contained in this file: - - Julian Seward - Bzip2 sources, implementation of the multi-table Huffman technique. - - Jean-loup Gailly and Mark Adler and L. Peter Deutsch - Zlib source code, RFC 1951 - - Daniel S. Hirschberg and Debra A. LeLewer - "Efficient Decoding of Prefix Codes" - Communications of the ACM, April 1990 33(4). - - David J. Wheeler - Program bred3.c, bexp3 and accompanying documents bred3.ps, huff.ps. - This contains the idea behind the multi-table Huffman and 1-2 coding - techniques. - ftp://ftp.cl.cam.ac.uk/users/djw3/ - -*/ - -/* OPT: during the multi-table iteration, pick the worst-overall - * performing table and replace it with exactly the frequencies of the - * worst-overall performing sector or N-worst performing sectors. */ - -/* REF: See xdfs-0.222 and xdfs-0.226 for some old experiments with - * the Bzip prefix coding strategy. xdfs-0.256 contains the last of - * the other-format tests, including RFC1950 and the RFC1950+MTF - * tests. */ - -#define DJW_MAX_CODELEN 20U /* Maximum length of an alphabet code. */ - -/* Code lengths are themselves code-length encoded, so the total number of - * codes is: [RUN_0, RUN_1, 1-DJW_MAX_CODELEN] */ -#define DJW_TOTAL_CODES (DJW_MAX_CODELEN+2) - -#define RUN_0 0U /* Symbols used in MTF+1/2 coding. */ -#define RUN_1 1U - -/* Number of code lengths always encoded (djw_encode_basic array) */ -#define DJW_BASIC_CODES 5U -#define DJW_RUN_CODES 2U /* Number of run codes */ - -/* Offset of extra codes */ -#define DJW_EXTRA_12OFFSET (DJW_BASIC_CODES + DJW_RUN_CODES) - -/* Number of optionally encoded code lengths (djw_encode_extra array) */ -#define DJW_EXTRA_CODES 15U - -/* Number of bits to code [0-DJW_EXTRA_CODES] */ -#define DJW_EXTRA_CODE_BITS 4U - -#define DJW_MAX_GROUPS 8U /* Max number of group coding tables */ -#define DJW_GROUP_BITS 3U /* Number of bits to code [1-DJW_MAX_GROUPS] */ - -#define DJW_SECTORSZ_MULT 5U /* Multiplier for encoded sectorsz */ -#define DJW_SECTORSZ_BITS 5U /* Number of bits to code group size */ -#define DJW_SECTORSZ_MAX ((1U << DJW_SECTORSZ_BITS) * DJW_SECTORSZ_MULT) - -/* Maximum number of iterations to find group tables. */ -#define DJW_MAX_ITER 6U -/* Minimum number of bits an iteration must reduce coding by. */ -#define DJW_MIN_IMPROVEMENT 20U - -/* Maximum code length of a prefix code length */ -#define DJW_MAX_CLCLEN 15U - -/* Number of bits to code [0-DJW_MAX_CLCLEN] */ -#define DJW_CLCLEN_BITS 4U - -#define DJW_MAX_GBCLEN 7U /* Maximum code length of a group selector */ - -/* Number of bits to code [0-DJW_MAX_GBCLEN] - * TODO: Actually, should never have zero code lengths here, or else a group - * went unused. Write a test for this: if a group goes unused, eliminate - * it? */ -#define DJW_GBCLEN_BITS 3U - -/* It has to save at least this many bits... */ -#define EFFICIENCY_BITS 16U - -typedef struct _djw_stream djw_stream; -typedef struct _djw_heapen djw_heapen; -typedef struct _djw_prefix djw_prefix; -typedef uint32_t djw_weight; - -struct _djw_heapen -{ - uint32_t depth; - uint32_t freq; - uint32_t parent; -}; - -struct _djw_prefix -{ - usize_t scount; - uint8_t *symbol; - usize_t mcount; - uint8_t *mtfsym; - uint8_t *repcnt; -}; - -struct _djw_stream -{ - int unused; -}; - -/* Each Huffman table consists of 256 "code length" (CLEN) codes, - * which are themselves Huffman coded after eliminating repeats and - * move-to-front coding. The prefix consists of all the CLEN codes in - * djw_encode_basic plus a 4-bit value stating how many of the - * djw_encode_extra codes are actually coded (the rest are presumed - * zero, or unused CLEN codes). - * - * These values of these two arrays were arrived at by studying the - * distribution of min and max clen over a collection of DATA, INST, - * and ADDR inputs. The goal is to specify the order of - * djw_extra_codes that is most likely to minimize the number of extra - * codes that must be encoded. - * - * Results: 158896 sections were counted by compressing files (window - * size 512K) listed with: `find / -type f ( -user jmacd -o -perm +444 - * )` - * - * The distribution of CLEN codes for each efficient invocation of the - * secondary compressor (taking the best number of groups/sector size) - * was recorded. Then we look at the distribution of min and max clen - * values, counting the number of times the value C_low is less than - * the min and C_high is greater than the max. Values >= C_high and - * <= C_low will not have their lengths coded. The results are sorted - * and the least likely 15 are placed into the djw_encode_extra[] - * array in order. These values are used as the initial MTF ordering. - - clow[1] = 155119 - clow[2] = 140325 - clow[3] = 84072 - --- - clow[4] = 7225 - clow[5] = 1093 - clow[6] = 215 - --- - chigh[4] = 1 - chigh[5] = 30 - chigh[6] = 218 - chigh[7] = 2060 - chigh[8] = 13271 - --- - chigh[9] = 39463 - chigh[10] = 77360 - chigh[11] = 118298 - chigh[12] = 141360 - chigh[13] = 154086 - chigh[14] = 157967 - chigh[15] = 158603 - chigh[16] = 158864 - chigh[17] = 158893 - chigh[18] = 158895 - chigh[19] = 158896 - chigh[20] = 158896 - -*/ - -static const uint8_t djw_encode_12extra[DJW_EXTRA_CODES] = - { - 9, 10, 3, 11, 2, 12, 13, 1, 14, 15, 16, 17, 18, 19, 20, - }; - -static const uint8_t djw_encode_12basic[DJW_BASIC_CODES] = - { - 4, 5, 6, 7, 8, - }; - -/*********************************************************************/ -/* DECLS */ -/*********************************************************************/ - -static djw_stream* djw_alloc (xd3_stream *stream); -static int djw_init (xd3_stream *stream, - djw_stream *h, - int is_encode); -static void djw_destroy (xd3_stream *stream, - djw_stream *h); - -#if XD3_ENCODER -static int xd3_encode_huff (xd3_stream *stream, - djw_stream *sec_stream, - xd3_output *input, - xd3_output *output, - xd3_sec_cfg *cfg); -#endif - -static int xd3_decode_huff (xd3_stream *stream, - djw_stream *sec_stream, - const uint8_t **input, - const uint8_t *const input_end, - uint8_t **output, - const uint8_t *const output_end); - -/*********************************************************************/ -/* HUFFMAN */ -/*********************************************************************/ - -static djw_stream* -djw_alloc (xd3_stream *stream) -{ - return (djw_stream*) xd3_alloc (stream, sizeof (djw_stream), 1); -} - -static int -djw_init (xd3_stream *stream, djw_stream *h, int is_encode) -{ - /* Fields are initialized prior to use. */ - return 0; -} - -static void -djw_destroy (xd3_stream *stream, - djw_stream *h) -{ - xd3_free (stream, h); -} - - -/*********************************************************************/ -/* HEAP */ -/*********************************************************************/ - -static inline int -heap_less (const djw_heapen *a, const djw_heapen *b) -{ - return a->freq < b->freq || - (a->freq == b->freq && - a->depth < b->depth); -} - -static inline void -heap_insert (usize_t *heap, const djw_heapen *ents, usize_t p, const usize_t e) -{ - /* Insert ents[e] into next slot heap[p] */ - usize_t pp = p/2; /* P's parent */ - - while (heap_less (& ents[e], & ents[heap[pp]])) - { - heap[p] = heap[pp]; - p = pp; - pp = p/2; - } - - heap[p] = e; -} - -static inline djw_heapen* -heap_extract (usize_t *heap, const djw_heapen *ents, usize_t heap_last) -{ - usize_t smallest = heap[1]; - usize_t p, pc, t; - - /* Caller decrements heap_last, so heap_last+1 is the replacement elt. */ - heap[1] = heap[heap_last+1]; - - /* Re-heapify */ - for (p = 1; ; p = pc) - { - pc = p*2; - - /* Reached bottom of heap */ - if (pc > heap_last) { break; } - - /* See if second child is smaller. */ - if (pc < heap_last && heap_less (& ents[heap[pc+1]], & ents[heap[pc]])) - { - pc += 1; - } - - /* If pc is not smaller than p, heap property re-established. */ - if (! heap_less (& ents[heap[pc]], & ents[heap[p]])) { break; } - - t = heap[pc]; - heap[pc] = heap[p]; - heap[p] = t; - } - - return (djw_heapen*) & ents[smallest]; -} - -#if XD3_DEBUG -static void -heap_check (usize_t *heap, djw_heapen *ents, usize_t heap_last) -{ - usize_t i; - for (i = 1; i <= heap_last; i += 1) - { - /* Heap property: child not less than parent */ - XD3_ASSERT (! heap_less (& ents[heap[i]], & ents[heap[i/2]])); - - IF_DEBUG2 (DP(RINT "heap[%d] = %u\n", i, ents[heap[i]].freq)); - } -} -#endif - -/*********************************************************************/ -/* MTF, 1/2 */ -/*********************************************************************/ - -static inline usize_t -djw_update_mtf (uint8_t *mtf, usize_t mtf_i) -{ - int k; - usize_t sym = mtf[mtf_i]; - - for (k = mtf_i; k != 0; k -= 1) { mtf[k] = mtf[k-1]; } - - mtf[0] = sym; - return sym; -} - -static inline void -djw_update_1_2 (int *mtf_run, usize_t *mtf_i, - uint8_t *mtfsym, djw_weight *freq) -{ - int code; - - do - { - /* Offset by 1, since any number of RUN_ symbols implies run>0... */ - *mtf_run -= 1; - - code = (*mtf_run & 1) ? RUN_1 : RUN_0; - - mtfsym[(*mtf_i)++] = code; - freq[code] += 1; - *mtf_run >>= 1; - } - while (*mtf_run >= 1); - - *mtf_run = 0; -} - -static void -djw_init_clen_mtf_1_2 (uint8_t *clmtf) -{ - usize_t i, cl_i = 0; - - clmtf[cl_i++] = 0; - for (i = 0; i < DJW_BASIC_CODES; i += 1) - { - clmtf[cl_i++] = djw_encode_12basic[i]; - } - for (i = 0; i < DJW_EXTRA_CODES; i += 1) - { - clmtf[cl_i++] = djw_encode_12extra[i]; - } -} - -/*********************************************************************/ -/* PREFIX CODES */ -/*********************************************************************/ -#if XD3_ENCODER -static usize_t -djw_build_prefix (const djw_weight *freq, uint8_t *clen, usize_t asize, usize_t maxlen) -{ - /* Heap with 0th entry unused, prefix tree with up to ALPHABET_SIZE-1 - * internal nodes, never more than ALPHABET_SIZE entries actually in the - * heap (minimum weight subtrees during prefix construction). First - * ALPHABET_SIZE entries are the actual symbols, next ALPHABET_SIZE-1 are - * internal nodes. */ - djw_heapen ents[ALPHABET_SIZE * 2]; - usize_t heap[ALPHABET_SIZE + 1]; - - usize_t heap_last; /* Index of the last _valid_ heap entry. */ - usize_t ents_size; /* Number of entries, including 0th fake entry */ - usize_t overflow; /* Number of code lengths that overflow */ - uint32_t total_bits; - usize_t i; - - IF_DEBUG (uint32_t first_bits = 0); - - /* Insert real symbol frequences. */ - for (i = 0; i < asize; i += 1) - { - ents[i+1].freq = freq[i]; - IF_DEBUG2 (DP(RINT "ents[%d] = freq[%d] = %d\n", - i+1, i, freq[i])); - } - - again: - - /* The loop is re-entered each time an overflow occurs. Re-initialize... */ - heap_last = 0; - ents_size = 1; - overflow = 0; - total_bits = 0; - - /* 0th entry terminates the while loop in heap_insert (it's the parent of - * the smallest element, always less-than) */ - heap[0] = 0; - ents[0].depth = 0; - ents[0].freq = 0; - - /* Initial heap. */ - for (i = 0; i < asize; i += 1, ents_size += 1) - { - ents[ents_size].depth = 0; - ents[ents_size].parent = 0; - - if (ents[ents_size].freq != 0) - { - heap_insert (heap, ents, ++heap_last, ents_size); - } - } - - IF_DEBUG (heap_check (heap, ents, heap_last)); - - /* Must be at least one symbol, or else we can't get here. */ - XD3_ASSERT (heap_last != 0); - - /* If there is only one symbol, fake a second to prevent zero-length - * codes. */ - if (heap_last == 1) - { - /* Pick either the first or last symbol. */ - int s = freq[0] ? asize-1 : 0; - ents[s+1].freq = 1; - goto again; - } - - /* Build prefix tree. */ - while (heap_last > 1) - { - djw_heapen *h1 = heap_extract (heap, ents, --heap_last); - djw_heapen *h2 = heap_extract (heap, ents, --heap_last); - - ents[ents_size].freq = h1->freq + h2->freq; - ents[ents_size].depth = 1 + xd3_max (h1->depth, h2->depth); - ents[ents_size].parent = 0; - - h1->parent = h2->parent = ents_size; - - heap_insert (heap, ents, ++heap_last, ents_size++); - } - - IF_DEBUG (heap_check (heap, ents, heap_last)); - - /* Now compute prefix code lengths, counting parents. */ - for (i = 1; i < asize+1; i += 1) - { - usize_t b = 0; - - if (ents[i].freq != 0) - { - usize_t p = i; - - while ((p = ents[p].parent) != 0) { b += 1; } - - if (b > maxlen) { overflow = 1; } - - total_bits += b * freq[i-1]; - } - - /* clen is 0-origin, unlike ents. */ - IF_DEBUG2 (DP(RINT "clen[%d] = %d\n", i-1, b)); - clen[i-1] = b; - } - - IF_DEBUG (if (first_bits == 0) first_bits = total_bits); - - if (! overflow) - { - IF_DEBUG2 (if (first_bits != total_bits) - { - DP(RINT "code length overflow changed %u bits\n", - (usize_t)(total_bits - first_bits)); - }); - return total_bits; - } - - /* OPT: There is a non-looping way to fix overflow shown in zlib, but this - * is easier (for now), as done in bzip2. */ - for (i = 1; i < asize+1; i += 1) - { - ents[i].freq = ents[i].freq / 2 + 1; - } - - goto again; -} - -static void -djw_build_codes (usize_t *codes, const uint8_t *clen, usize_t asize, usize_t abs_max) -{ - usize_t i, l; - usize_t min_clen = DJW_MAX_CODELEN; - usize_t max_clen = 0; - usize_t code = 0; - - /* Find the min and max code length */ - for (i = 0; i < asize; i += 1) - { - if (clen[i] > 0 && clen[i] < min_clen) - { - min_clen = clen[i]; - } - - max_clen = xd3_max (max_clen, (usize_t) clen[i]); - } - - XD3_ASSERT (max_clen <= abs_max); - - /* Generate a code for each symbol with the appropriate length. */ - for (l = min_clen; l <= max_clen; l += 1) - { - for (i = 0; i < asize; i += 1) - { - if (clen[i] == l) - { - codes[i] = code++; - } - } - - code <<= 1; - } - - IF_DEBUG2 ({ - for (i = 0; i < asize; i += 1) - { - DP(RINT "code[%d] = %u\n", i, codes[i]); - } - }); -} - -/*********************************************************************/ -/* MOVE-TO-FRONT */ -/*********************************************************************/ -static void -djw_compute_mtf_1_2 (djw_prefix *prefix, - uint8_t *mtf, - djw_weight *freq_out, - usize_t nsym) -{ - size_t i, j, k; - usize_t sym; - usize_t size = prefix->scount; - usize_t mtf_i = 0; - int mtf_run = 0; - - /* This +2 is for the RUN_0, RUN_1 codes */ - memset (freq_out, 0, sizeof (freq_out[0]) * (nsym+2)); - - for (i = 0; i < size; ) - { - /* OPT: Bzip optimizes this algorithm a little by effectively checking - * j==0 before the MTF update. */ - sym = prefix->symbol[i++]; - - for (j = 0; mtf[j] != sym; j += 1) { } - - XD3_ASSERT (j <= nsym); - - for (k = j; k >= 1; k -= 1) { mtf[k] = mtf[k-1]; } - - mtf[0] = sym; - - if (j == 0) - { - mtf_run += 1; - continue; - } - - if (mtf_run > 0) - { - djw_update_1_2 (& mtf_run, & mtf_i, prefix->mtfsym, freq_out); - } - - /* Non-zero symbols are offset by RUN_1 */ - prefix->mtfsym[mtf_i++] = (uint8_t)(j+RUN_1); - freq_out[j+RUN_1] += 1; - } - - if (mtf_run > 0) - { - djw_update_1_2 (& mtf_run, & mtf_i, prefix->mtfsym, freq_out); - } - - prefix->mcount = mtf_i; -} - -/* Counts character frequencies of the input buffer, returns the size. */ -static usize_t -djw_count_freqs (djw_weight *freq, xd3_output *input) -{ - xd3_output *in; - usize_t size = 0; - - memset (freq, 0, sizeof (freq[0]) * ALPHABET_SIZE); - - for (in = input; in; in = in->next_page) - { - const uint8_t *p = in->base; - const uint8_t *p_max = p + in->next; - - size += in->next; - - do - { - ++freq[*p]; - } - while (++p < p_max); - } - - IF_DEBUG2 ({int i; - DP(RINT "freqs: "); - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - DP(RINT "%u ", freq[i]); - } - DP(RINT "\n");}); - - return size; -} - -static void -djw_compute_multi_prefix (usize_t groups, - uint8_t clen[DJW_MAX_GROUPS][ALPHABET_SIZE], - djw_prefix *prefix) -{ - usize_t gp, i; - - prefix->scount = ALPHABET_SIZE; - memcpy (prefix->symbol, clen[0], ALPHABET_SIZE); - - for (gp = 1; gp < groups; gp += 1) - { - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - if (clen[gp][i] == 0) - { - continue; - } - - prefix->symbol[prefix->scount++] = clen[gp][i]; - } - } -} - -static void -djw_compute_prefix_1_2 (djw_prefix *prefix, djw_weight *freq) -{ - /* This +1 is for the 0 code-length. */ - uint8_t clmtf[DJW_MAX_CODELEN+1]; - - djw_init_clen_mtf_1_2 (clmtf); - - djw_compute_mtf_1_2 (prefix, clmtf, freq, DJW_MAX_CODELEN); -} - -static int -djw_encode_prefix (xd3_stream *stream, - xd3_output **output, - bit_state *bstate, - djw_prefix *prefix) -{ - int ret; - size_t i; - usize_t num_to_encode; - djw_weight clfreq[DJW_TOTAL_CODES]; - uint8_t clclen[DJW_TOTAL_CODES]; - usize_t clcode[DJW_TOTAL_CODES]; - - /* Move-to-front encode prefix symbols, count frequencies */ - djw_compute_prefix_1_2 (prefix, clfreq); - - /* Compute codes */ - djw_build_prefix (clfreq, clclen, DJW_TOTAL_CODES, DJW_MAX_CLCLEN); - djw_build_codes (clcode, clclen, DJW_TOTAL_CODES, DJW_MAX_CLCLEN); - - /* Compute number of extra codes beyond basic ones for this template. */ - num_to_encode = DJW_TOTAL_CODES; - while (num_to_encode > DJW_EXTRA_12OFFSET && clclen[num_to_encode-1] == 0) - { - num_to_encode -= 1; - } - XD3_ASSERT (num_to_encode - DJW_EXTRA_12OFFSET < (1 << DJW_EXTRA_CODE_BITS)); - - /* Encode: # of extra codes */ - if ((ret = xd3_encode_bits (stream, output, bstate, DJW_EXTRA_CODE_BITS, - num_to_encode - DJW_EXTRA_12OFFSET))) - { - return ret; - } - - /* Encode: MTF code lengths */ - for (i = 0; i < num_to_encode; i += 1) - { - if ((ret = xd3_encode_bits (stream, output, bstate, - DJW_CLCLEN_BITS, clclen[i]))) - { - return ret; - } - } - - /* Encode: CLEN code lengths */ - for (i = 0; i < prefix->mcount; i += 1) - { - usize_t mtf_sym = prefix->mtfsym[i]; - usize_t bits = clclen[mtf_sym]; - usize_t code = clcode[mtf_sym]; - - if ((ret = xd3_encode_bits (stream, output, bstate, bits, code))) - { - return ret; - } - } - - return 0; -} - -static void -djw_compute_selector_1_2 (djw_prefix *prefix, - usize_t groups, - djw_weight *gbest_freq) -{ - uint8_t grmtf[DJW_MAX_GROUPS]; - usize_t i; - - for (i = 0; i < groups; i += 1) { grmtf[i] = i; } - - djw_compute_mtf_1_2 (prefix, grmtf, gbest_freq, groups); -} - -static int -xd3_encode_howmany_groups (xd3_stream *stream, - xd3_sec_cfg *cfg, - usize_t input_size, - usize_t *ret_groups, - usize_t *ret_sector_size) -{ - usize_t cfg_groups = 0; - usize_t cfg_sector_size = 0; - usize_t sugg_groups = 0; - usize_t sugg_sector_size = 0; - - if (cfg->ngroups != 0) - { - if (cfg->ngroups > DJW_MAX_GROUPS) - { - stream->msg = "invalid secondary encoder group number"; - return XD3_INTERNAL; - } - - cfg_groups = cfg->ngroups; - } - - if (cfg->sector_size != 0) - { - if (cfg->sector_size < DJW_SECTORSZ_MULT || - cfg->sector_size > DJW_SECTORSZ_MAX || - (cfg->sector_size % DJW_SECTORSZ_MULT) != 0) - { - stream->msg = "invalid secondary encoder sector size"; - return XD3_INTERNAL; - } - - cfg_sector_size = cfg->sector_size; - } - - if (cfg_groups == 0 || cfg_sector_size == 0) - { - /* These values were found empirically using xdelta3-tune around version - * xdfs-0.256. */ - switch (cfg->data_type) - { - case DATA_SECTION: - if (input_size < 1000) { sugg_groups = 1; sugg_sector_size = 0; } - else if (input_size < 4000) { sugg_groups = 2; sugg_sector_size = 10; } - else if (input_size < 7000) { sugg_groups = 3; sugg_sector_size = 10; } - else if (input_size < 10000) { sugg_groups = 4; sugg_sector_size = 10; } - else if (input_size < 25000) { sugg_groups = 5; sugg_sector_size = 10; } - else if (input_size < 50000) { sugg_groups = 7; sugg_sector_size = 20; } - else if (input_size < 100000) { sugg_groups = 8; sugg_sector_size = 30; } - else { sugg_groups = 8; sugg_sector_size = 70; } - break; - case INST_SECTION: - if (input_size < 7000) { sugg_groups = 1; sugg_sector_size = 0; } - else if (input_size < 10000) { sugg_groups = 2; sugg_sector_size = 50; } - else if (input_size < 25000) { sugg_groups = 3; sugg_sector_size = 50; } - else if (input_size < 50000) { sugg_groups = 6; sugg_sector_size = 40; } - else if (input_size < 100000) { sugg_groups = 8; sugg_sector_size = 40; } - else { sugg_groups = 8; sugg_sector_size = 40; } - break; - case ADDR_SECTION: - if (input_size < 9000) { sugg_groups = 1; sugg_sector_size = 0; } - else if (input_size < 25000) { sugg_groups = 2; sugg_sector_size = 130; } - else if (input_size < 50000) { sugg_groups = 3; sugg_sector_size = 130; } - else if (input_size < 100000) { sugg_groups = 5; sugg_sector_size = 130; } - else { sugg_groups = 7; sugg_sector_size = 130; } - break; - } - - if (cfg_groups == 0) - { - cfg_groups = sugg_groups; - } - - if (cfg_sector_size == 0) - { - cfg_sector_size = sugg_sector_size; - } - } - - if (cfg_groups != 1 && cfg_sector_size == 0) - { - switch (cfg->data_type) - { - case DATA_SECTION: - cfg_sector_size = 20; - break; - case INST_SECTION: - cfg_sector_size = 50; - break; - case ADDR_SECTION: - cfg_sector_size = 130; - break; - } - } - - (*ret_groups) = cfg_groups; - (*ret_sector_size) = cfg_sector_size; - - XD3_ASSERT (cfg_groups > 0 && cfg_groups <= DJW_MAX_GROUPS); - XD3_ASSERT (cfg_groups == 1 || - (cfg_sector_size >= DJW_SECTORSZ_MULT && - cfg_sector_size <= DJW_SECTORSZ_MAX)); - - return 0; -} - -static int -xd3_encode_huff (xd3_stream *stream, - djw_stream *h, - xd3_output *input, - xd3_output *output, - xd3_sec_cfg *cfg) -{ - int ret; - usize_t groups, sector_size; - bit_state bstate = BIT_STATE_ENCODE_INIT; - xd3_output *in; - usize_t output_bits; - usize_t input_bits; - usize_t input_bytes; - usize_t initial_offset = output->next; - djw_weight real_freq[ALPHABET_SIZE]; - uint8_t *gbest = NULL; - uint8_t *gbest_mtf = NULL; - - input_bytes = djw_count_freqs (real_freq, input); - input_bits = input_bytes * 8; - - XD3_ASSERT (input_bytes > 0); - - if ((ret = xd3_encode_howmany_groups (stream, cfg, input_bytes, - & groups, & sector_size))) - { - return ret; - } - - if (0) - { - regroup: - /* Sometimes we dynamically decide there are too many groups. Arrive - * here. */ - output->next = initial_offset; - xd3_bit_state_encode_init (& bstate); - } - - /* Encode: # of groups (3 bits) */ - if ((ret = xd3_encode_bits (stream, & output, & bstate, - DJW_GROUP_BITS, groups-1))) { goto failure; } - - if (groups == 1) - { - /* Single Huffman group. */ - usize_t code[ALPHABET_SIZE]; /* Codes */ - uint8_t clen[ALPHABET_SIZE]; - uint8_t prefix_mtfsym[ALPHABET_SIZE]; - djw_prefix prefix; - - output_bits = - djw_build_prefix (real_freq, clen, ALPHABET_SIZE, DJW_MAX_CODELEN); - djw_build_codes (code, clen, ALPHABET_SIZE, DJW_MAX_CODELEN); - - if (output_bits + EFFICIENCY_BITS >= input_bits && ! cfg->inefficient) - { - goto nosecond; - } - - /* Encode: prefix */ - prefix.mtfsym = prefix_mtfsym; - prefix.symbol = clen; - prefix.scount = ALPHABET_SIZE; - - if ((ret = djw_encode_prefix (stream, & output, & bstate, & prefix))) - { - goto failure; - } - - if (output_bits + (8 * output->next) + EFFICIENCY_BITS >= - input_bits && ! cfg->inefficient) - { - goto nosecond; - } - - /* Encode: data */ - for (in = input; in; in = in->next_page) - { - const uint8_t *p = in->base; - const uint8_t *p_max = p + in->next; - - do - { - usize_t sym = *p++; - usize_t bits = clen[sym]; - - IF_DEBUG (output_bits -= bits); - - if ((ret = xd3_encode_bits (stream, & output, - & bstate, bits, code[sym]))) - { - goto failure; - } - } - while (p < p_max); - } - - XD3_ASSERT (output_bits == 0); - } - else - { - /* DJW Huffman */ - djw_weight evolve_freq[DJW_MAX_GROUPS][ALPHABET_SIZE]; - uint8_t evolve_clen[DJW_MAX_GROUPS][ALPHABET_SIZE]; - djw_weight left = input_bytes; - usize_t gp; - usize_t niter = 0; - usize_t select_bits; - usize_t sym1 = 0, sym2 = 0, s; - usize_t gcost[DJW_MAX_GROUPS]; - usize_t gbest_code[DJW_MAX_GROUPS+2]; - uint8_t gbest_clen[DJW_MAX_GROUPS+2]; - usize_t gbest_max = 1 + (input_bytes - 1) / sector_size; - usize_t best_bits = 0; - usize_t gbest_no; - usize_t gpcnt; - const uint8_t *p; - IF_DEBUG2 (usize_t gcount[DJW_MAX_GROUPS]); - - /* Encode: sector size (5 bits) */ - if ((ret = xd3_encode_bits (stream, & output, & bstate, - DJW_SECTORSZ_BITS, - (sector_size/DJW_SECTORSZ_MULT)-1))) - { - goto failure; - } - - /* Dynamic allocation. */ - if (gbest == NULL) - { - if ((gbest = (uint8_t*) xd3_alloc (stream, gbest_max, 1)) == NULL) - { - ret = ENOMEM; - goto failure; - } - } - - if (gbest_mtf == NULL) - { - if ((gbest_mtf = (uint8_t*) xd3_alloc (stream, gbest_max, 1)) == NULL) - { - ret = ENOMEM; - goto failure; - } - } - - /* OPT: Some of the inner loops can be optimized, as shown in bzip2 */ - - /* Generate initial code length tables. */ - for (gp = 0; gp < groups; gp += 1) - { - djw_weight sum = 0; - djw_weight goal = left / (groups - gp); - - IF_DEBUG2 (usize_t nz = 0); - - /* Due to the single-code granularity of this distribution, it may - * be that we can't generate a distribution for each group. In that - * case subtract one group and try again. If (inefficient), we're - * testing group behavior, so don't mess things up. */ - if (goal == 0 && !cfg->inefficient) - { - IF_DEBUG2 (DP(RINT "too many groups (%u), dropping one\n", - groups)); - groups -= 1; - goto regroup; - } - - /* Sum == goal is possible when (cfg->inefficient)... */ - while (sum < goal) - { - XD3_ASSERT (sym2 < ALPHABET_SIZE); - IF_DEBUG2 (nz += real_freq[sym2] != 0); - sum += real_freq[sym2++]; - } - - IF_DEBUG2(DP(RINT "group %u has symbols %u..%u (%u non-zero) " - "(%u/%u = %.3f)\n", - gp, sym1, sym2, nz, sum, - input_bytes, sum / (double)input_bytes);); - - for (s = 0; s < ALPHABET_SIZE; s += 1) - { - evolve_clen[gp][s] = (s >= sym1 && s <= sym2) ? 1 : 16; - } - - left -= sum; - sym1 = sym2+1; - } - - repeat: - - niter += 1; - gbest_no = 0; - memset (evolve_freq, 0, sizeof (evolve_freq[0]) * groups); - IF_DEBUG2 (memset (gcount, 0, sizeof (gcount[0]) * groups)); - - /* For each input page (loop is irregular to allow non-pow2-size group - * size. */ - in = input; - p = in->base; - - /* For each group-size sector. */ - do - { - const uint8_t *p0 = p; - xd3_output *in0 = in; - usize_t best = 0; - usize_t winner = 0; - - /* Select best group for each sector, update evolve_freq. */ - memset (gcost, 0, sizeof (gcost[0]) * groups); - - /* For each byte in sector. */ - for (gpcnt = 0; gpcnt < sector_size; gpcnt += 1) - { - /* For each group. */ - for (gp = 0; gp < groups; gp += 1) - { - gcost[gp] += evolve_clen[gp][*p]; - } - - /* Check end-of-input-page. */ -# define GP_PAGE() \ - if ((usize_t)(++p - in->base) == in->next) \ - { \ - in = in->next_page; \ - if (in == NULL) { break; } \ - p = in->base; \ - } - - GP_PAGE (); - } - - /* Find min cost group for this sector */ - best = USIZE_T_MAX; - for (gp = 0; gp < groups; gp += 1) - { - if (gcost[gp] < best) - { - best = gcost[gp]; - winner = gp; - } - } - - XD3_ASSERT(gbest_no < gbest_max); - gbest[gbest_no++] = winner; - IF_DEBUG2 (gcount[winner] += 1); - - p = p0; - in = in0; - - /* Update group frequencies. */ - for (gpcnt = 0; gpcnt < sector_size; gpcnt += 1) - { - evolve_freq[winner][*p] += 1; - - GP_PAGE (); - } - } - while (in != NULL); - - XD3_ASSERT (gbest_no == gbest_max); - - /* Recompute code lengths. */ - output_bits = 0; - for (gp = 0; gp < groups; gp += 1) - { - int i; - uint8_t evolve_zero[ALPHABET_SIZE]; - int any_zeros = 0; - - memset (evolve_zero, 0, sizeof (evolve_zero)); - - /* Cannot allow a zero clen when the real frequency is non-zero. - * Note: this means we are going to encode a fairly long code for - * these unused entries. An improvement would be to implement a - * NOTUSED code for when these are actually zero, but this requires - * another data structure (evolve_zero) since we don't know when - * evolve_freq[i] == 0... Briefly tested, looked worse. */ - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - if (evolve_freq[gp][i] == 0 && real_freq[i] != 0) - { - evolve_freq[gp][i] = 1; - evolve_zero[i] = 1; - any_zeros = 1; - } - } - - output_bits += djw_build_prefix (evolve_freq[gp], evolve_clen[gp], - ALPHABET_SIZE, DJW_MAX_CODELEN); - - /* The above faking of frequencies does not matter for the last - * iteration, but we don't know when that is yet. However, it also - * breaks the output_bits computation. Necessary for accuracy, and - * for the (output_bits==0) assert after all bits are output. */ - if (any_zeros) - { - IF_DEBUG2 (usize_t save_total = output_bits); - - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - if (evolve_zero[i]) { output_bits -= evolve_clen[gp][i]; } - } - - IF_DEBUG2 (DP(RINT "evolve_zero reduced %u bits in group %u\n", - save_total - output_bits, gp)); - } - } - - IF_DEBUG2( - DP(RINT "pass %u total bits: %u group uses: ", niter, output_bits); - for (gp = 0; gp < groups; gp += 1) { DP(RINT "%u ", gcount[gp]); } - DP(RINT "\n"); - ); - - /* End iteration. */ - - IF_DEBUG2 (if (niter > 1 && best_bits < output_bits) { - DP(RINT "iteration lost %u bits\n", output_bits - best_bits); }); - - if (niter == 1 || (niter < DJW_MAX_ITER && - (best_bits - output_bits) >= DJW_MIN_IMPROVEMENT)) - { - best_bits = output_bits; - goto repeat; - } - - /* Efficiency check. */ - if (output_bits + EFFICIENCY_BITS >= input_bits && ! cfg->inefficient) - { - goto nosecond; - } - - IF_DEBUG2 (DP(RINT "djw compression: %u -> %0.3f\n", - input_bytes, output_bits / 8.0)); - - /* Encode: prefix */ - { - uint8_t prefix_symbol[DJW_MAX_GROUPS * ALPHABET_SIZE]; - uint8_t prefix_mtfsym[DJW_MAX_GROUPS * ALPHABET_SIZE]; - uint8_t prefix_repcnt[DJW_MAX_GROUPS * ALPHABET_SIZE]; - djw_prefix prefix; - - prefix.symbol = prefix_symbol; - prefix.mtfsym = prefix_mtfsym; - prefix.repcnt = prefix_repcnt; - - djw_compute_multi_prefix (groups, evolve_clen, & prefix); - if ((ret = djw_encode_prefix (stream, & output, & bstate, & prefix))) - { - goto failure; - } - } - - /* Encode: selector frequencies */ - { - /* DJW_MAX_GROUPS +2 is for RUN_0, RUN_1 symbols. */ - djw_weight gbest_freq[DJW_MAX_GROUPS+2]; - djw_prefix gbest_prefix; - usize_t i; - - gbest_prefix.scount = gbest_no; - gbest_prefix.symbol = gbest; - gbest_prefix.mtfsym = gbest_mtf; - - djw_compute_selector_1_2 (& gbest_prefix, groups, gbest_freq); - - select_bits = - djw_build_prefix (gbest_freq, gbest_clen, groups+1, DJW_MAX_GBCLEN); - djw_build_codes (gbest_code, gbest_clen, groups+1, DJW_MAX_GBCLEN); - - for (i = 0; i < groups+1; i += 1) - { - if ((ret = xd3_encode_bits (stream, & output, & bstate, - DJW_GBCLEN_BITS, gbest_clen[i]))) - { - goto failure; - } - } - - for (i = 0; i < gbest_prefix.mcount; i += 1) - { - usize_t gp_mtf = gbest_mtf[i]; - usize_t gp_sel_bits = gbest_clen[gp_mtf]; - usize_t gp_sel_code = gbest_code[gp_mtf]; - - XD3_ASSERT (gp_mtf < groups+1); - - if ((ret = xd3_encode_bits (stream, & output, & bstate, - gp_sel_bits, gp_sel_code))) - { - goto failure; - } - - IF_DEBUG (select_bits -= gp_sel_bits); - } - - XD3_ASSERT (select_bits == 0); - } - - /* Efficiency check. */ - if (output_bits + select_bits + (8 * output->next) + - EFFICIENCY_BITS >= input_bits && ! cfg->inefficient) - { - goto nosecond; - } - - /* Encode: data */ - { - usize_t evolve_code[DJW_MAX_GROUPS][ALPHABET_SIZE]; - usize_t sector = 0; - - /* Build code tables for each group. */ - for (gp = 0; gp < groups; gp += 1) - { - djw_build_codes (evolve_code[gp], evolve_clen[gp], - ALPHABET_SIZE, DJW_MAX_CODELEN); - } - - /* Now loop over the input. */ - in = input; - p = in->base; - - do - { - /* For each sector. */ - usize_t gp_best = gbest[sector]; - usize_t *gp_codes = evolve_code[gp_best]; - uint8_t *gp_clens = evolve_clen[gp_best]; - - XD3_ASSERT (sector < gbest_no); - - sector += 1; - - /* Encode the sector data. */ - for (gpcnt = 0; gpcnt < sector_size; gpcnt += 1) - { - usize_t sym = *p; - usize_t bits = gp_clens[sym]; - usize_t code = gp_codes[sym]; - - IF_DEBUG (output_bits -= bits); - - if ((ret = xd3_encode_bits (stream, & output, & bstate, - bits, code))) - { - goto failure; - } - - GP_PAGE (); - } - } - while (in != NULL); - - XD3_ASSERT (select_bits == 0); - XD3_ASSERT (output_bits == 0); - } - } - - ret = xd3_flush_bits (stream, & output, & bstate); - - if (0) - { - nosecond: - stream->msg = "secondary compression was inefficient"; - ret = XD3_NOSECOND; - } - - failure: - - xd3_free (stream, gbest); - xd3_free (stream, gbest_mtf); - return ret; -} -#endif /* XD3_ENCODER */ - -/*********************************************************************/ -/* DECODE */ -/*********************************************************************/ - -static void -djw_build_decoder (xd3_stream *stream, - usize_t asize, - usize_t abs_max, - const uint8_t *clen, - uint8_t *inorder, - usize_t *base, - usize_t *limit, - usize_t *min_clenp, - usize_t *max_clenp) -{ - usize_t i, l; - const uint8_t *ci; - usize_t nr_clen [DJW_TOTAL_CODES]; - usize_t tmp_base[DJW_TOTAL_CODES]; - usize_t min_clen; - usize_t max_clen; - - /* Assumption: the two temporary arrays are large enough to hold abs_max. */ - XD3_ASSERT (abs_max <= DJW_MAX_CODELEN); - - /* This looks something like the start of zlib's inftrees.c */ - memset (nr_clen, 0, sizeof (nr_clen[0]) * (abs_max+1)); - - /* Count number of each code length */ - i = asize; - ci = clen; - do - { - /* Caller _must_ check that values are in-range. Most of the time the - * caller decodes a specific number of bits, which imply the max value, - * and the other time the caller decodes a huffman value, which must be - * in-range. Therefore, its an assertion and this function cannot - * otherwise fail. */ - XD3_ASSERT (*ci <= abs_max); - - nr_clen[*ci++]++; - } - while (--i != 0); - - /* Compute min, max. */ - for (i = 1; i <= abs_max; i += 1) { if (nr_clen[i]) { break; } } - min_clen = i; - for (i = abs_max; i != 0; i -= 1) { if (nr_clen[i]) { break; } } - max_clen = i; - - /* Fill the BASE, LIMIT table. */ - tmp_base[min_clen] = 0; - base[min_clen] = 0; - limit[min_clen] = nr_clen[min_clen] - 1; - for (i = min_clen + 1; i <= max_clen; i += 1) - { - usize_t last_limit = ((limit[i-1] + 1) << 1); - tmp_base[i] = tmp_base[i-1] + nr_clen[i-1]; - limit[i] = last_limit + nr_clen[i] - 1; - base[i] = last_limit - tmp_base[i]; - } - - /* Fill the inorder array, canonically ordered codes. */ - ci = clen; - for (i = 0; i < asize; i += 1) - { - if ((l = *ci++) != 0) - { - inorder[tmp_base[l]++] = i; - } - } - - *min_clenp = min_clen; - *max_clenp = max_clen; -} - -static inline int -djw_decode_symbol (xd3_stream *stream, - bit_state *bstate, - const uint8_t **input, - const uint8_t *input_end, - const uint8_t *inorder, - const usize_t *base, - const usize_t *limit, - usize_t min_clen, - usize_t max_clen, - usize_t *sym, - usize_t max_sym) -{ - usize_t code = 0; - usize_t bits = 0; - - /* OPT: Supposedly a small lookup table improves speed here... */ - - /* Code outline is similar to xd3_decode_bits... */ - if (bstate->cur_mask == 0x100) { goto next_byte; } - - for (;;) - { - do - { - if (bits == max_clen) { goto corrupt; } - - bits += 1; - code = (code << 1); - - if (bstate->cur_byte & bstate->cur_mask) { code |= 1; } - - bstate->cur_mask <<= 1; - - if (bits >= min_clen && code <= limit[bits]) { goto done; } - } - while (bstate->cur_mask != 0x100); - - next_byte: - - if (*input == input_end) - { - stream->msg = "secondary decoder end of input"; - return XD3_INVALID_INPUT; - } - - bstate->cur_byte = *(*input)++; - bstate->cur_mask = 1; - } - - done: - - if (base[bits] <= code) - { - usize_t offset = code - base[bits]; - - if (offset <= max_sym) - { - IF_DEBUG2 (DP(RINT "(j) %u ", code)); - *sym = inorder[offset]; - return 0; - } - } - - corrupt: - stream->msg = "secondary decoder invalid code"; - return XD3_INVALID_INPUT; -} - -static int -djw_decode_clclen (xd3_stream *stream, - bit_state *bstate, - const uint8_t **input, - const uint8_t *input_end, - uint8_t *cl_inorder, - usize_t *cl_base, - usize_t *cl_limit, - usize_t *cl_minlen, - usize_t *cl_maxlen, - uint8_t *cl_mtf) -{ - int ret; - uint8_t cl_clen[DJW_TOTAL_CODES]; - usize_t num_codes, value; - usize_t i; - - /* How many extra code lengths to encode. */ - if ((ret = xd3_decode_bits (stream, bstate, input, - input_end, DJW_EXTRA_CODE_BITS, & num_codes))) - { - return ret; - } - - num_codes += DJW_EXTRA_12OFFSET; - - /* Read num_codes. */ - for (i = 0; i < num_codes; i += 1) - { - if ((ret = xd3_decode_bits (stream, bstate, input, - input_end, DJW_CLCLEN_BITS, & value))) - { - return ret; - } - - cl_clen[i] = value; - } - - /* Set the rest to zero. */ - for (; i < DJW_TOTAL_CODES; i += 1) { cl_clen[i] = 0; } - - /* No need to check for in-range clen values, because: */ - XD3_ASSERT (1 << DJW_CLCLEN_BITS == DJW_MAX_CLCLEN + 1); - - /* Build the code-length decoder. */ - djw_build_decoder (stream, DJW_TOTAL_CODES, DJW_MAX_CLCLEN, - cl_clen, cl_inorder, cl_base, - cl_limit, cl_minlen, cl_maxlen); - - /* Initialize the MTF state. */ - djw_init_clen_mtf_1_2 (cl_mtf); - - return 0; -} - -static inline int -djw_decode_1_2 (xd3_stream *stream, - bit_state *bstate, - const uint8_t **input, - const uint8_t *input_end, - const uint8_t *inorder, - const usize_t *base, - const usize_t *limit, - const usize_t *minlen, - const usize_t *maxlen, - uint8_t *mtfvals, - usize_t elts, - usize_t skip_offset, - uint8_t *values) -{ - usize_t n = 0, rep = 0, mtf = 0, s = 0; - int ret; - - while (n < elts) - { - /* Special case inside generic code: CLEN only: If not the first group, - * we already know the zero frequencies. */ - if (skip_offset != 0 && n >= skip_offset && values[n-skip_offset] == 0) - { - values[n++] = 0; - continue; - } - - /* Repeat last symbol. */ - if (rep != 0) - { - values[n++] = mtfvals[0]; - rep -= 1; - continue; - } - - /* Symbol following last repeat code. */ - if (mtf != 0) - { - usize_t sym = djw_update_mtf (mtfvals, mtf); - values[n++] = sym; - mtf = 0; - continue; - } - - /* Decode next symbol/repeat code. */ - if ((ret = djw_decode_symbol (stream, bstate, input, input_end, - inorder, base, limit, *minlen, *maxlen, - & mtf, DJW_TOTAL_CODES))) { return ret; } - - if (mtf <= RUN_1) - { - /* Repetition. */ - rep = ((mtf + 1) << s); - mtf = 0; - s += 1; - } - else - { - /* Remove the RUN_1 MTF offset. */ - mtf -= 1; - s = 0; - } - } - - /* If (rep != 0) there were too many codes received. */ - if (rep != 0) - { - stream->msg = "secondary decoder invalid repeat code"; - return XD3_INVALID_INPUT; - } - - return 0; -} - -static inline int -djw_decode_prefix (xd3_stream *stream, - bit_state *bstate, - const uint8_t **input, - const uint8_t *input_end, - const uint8_t *cl_inorder, - const usize_t *cl_base, - const usize_t *cl_limit, - const usize_t *cl_minlen, - const usize_t *cl_maxlen, - uint8_t *cl_mtf, - usize_t groups, - uint8_t *clen) -{ - return djw_decode_1_2 (stream, bstate, input, input_end, - cl_inorder, cl_base, cl_limit, - cl_minlen, cl_maxlen, cl_mtf, - ALPHABET_SIZE * groups, ALPHABET_SIZE, clen); -} - -static int -xd3_decode_huff (xd3_stream *stream, - djw_stream *h, - const uint8_t **input_pos, - const uint8_t *const input_end, - uint8_t **output_pos, - const uint8_t *const output_end) -{ - const uint8_t *input = *input_pos; - uint8_t *output = *output_pos; - bit_state bstate = BIT_STATE_DECODE_INIT; - uint8_t *sel_group = NULL; - usize_t groups, gp; - usize_t output_bytes = (usize_t)(output_end - output); - usize_t sector_size; - usize_t sectors; - int ret; - - /* Invalid input. */ - if (output_bytes == 0) - { - stream->msg = "secondary decoder invalid input"; - return XD3_INVALID_INPUT; - } - - /* Decode: number of groups */ - if ((ret = xd3_decode_bits (stream, & bstate, & input, - input_end, DJW_GROUP_BITS, & groups))) - { - goto fail; - } - - groups += 1; - - if (groups > 1) - { - /* Decode: group size */ - if ((ret = xd3_decode_bits (stream, & bstate, & input, - input_end, DJW_SECTORSZ_BITS, - & sector_size))) { goto fail; } - - sector_size = (sector_size + 1) * DJW_SECTORSZ_MULT; - } - else - { - /* Default for groups == 1 */ - sector_size = output_bytes; - } - - sectors = 1 + (output_bytes - 1) / sector_size; - - /* TODO: In the case of groups==1, lots of extra stack space gets used here. - * Could dynamically allocate this memory, which would help with excess - * parameter passing, too. Passing too many parameters in this file, - * simplify it! */ - - /* Outer scope: per-group symbol decoder tables. */ - { - uint8_t inorder[DJW_MAX_GROUPS][ALPHABET_SIZE]; - usize_t base [DJW_MAX_GROUPS][DJW_TOTAL_CODES]; - usize_t limit [DJW_MAX_GROUPS][DJW_TOTAL_CODES]; - usize_t minlen [DJW_MAX_GROUPS]; - usize_t maxlen [DJW_MAX_GROUPS]; - - /* Nested scope: code length decoder tables. */ - { - uint8_t clen [DJW_MAX_GROUPS][ALPHABET_SIZE]; - uint8_t cl_inorder[DJW_TOTAL_CODES]; - usize_t cl_base [DJW_MAX_CLCLEN+2]; - usize_t cl_limit [DJW_MAX_CLCLEN+2]; - uint8_t cl_mtf [DJW_TOTAL_CODES]; - usize_t cl_minlen; - usize_t cl_maxlen; - - /* Compute the code length decoder. */ - if ((ret = djw_decode_clclen (stream, & bstate, & input, input_end, - cl_inorder, cl_base, cl_limit, & cl_minlen, - & cl_maxlen, cl_mtf))) { goto fail; } - - /* Now decode each group decoder. */ - if ((ret = djw_decode_prefix (stream, & bstate, & input, input_end, - cl_inorder, cl_base, cl_limit, - & cl_minlen, & cl_maxlen, cl_mtf, - groups, clen[0]))) { goto fail; } - - /* Prepare the actual decoding tables. */ - for (gp = 0; gp < groups; gp += 1) - { - djw_build_decoder (stream, ALPHABET_SIZE, DJW_MAX_CODELEN, - clen[gp], inorder[gp], base[gp], limit[gp], - & minlen[gp], & maxlen[gp]); - } - } - - /* Decode: selector clens. */ - { - uint8_t sel_inorder[DJW_MAX_GROUPS+2]; - usize_t sel_base [DJW_MAX_GBCLEN+2]; - usize_t sel_limit [DJW_MAX_GBCLEN+2]; - uint8_t sel_mtf [DJW_MAX_GROUPS+2]; - usize_t sel_minlen; - usize_t sel_maxlen; - - /* Setup group selection. */ - if (groups > 1) - { - uint8_t sel_clen[DJW_MAX_GROUPS+1]; - - for (gp = 0; gp < groups+1; gp += 1) - { - usize_t value; - - if ((ret = xd3_decode_bits (stream, & bstate, & input, - input_end, DJW_GBCLEN_BITS, - & value))) { goto fail; } - - sel_clen[gp] = value; - sel_mtf[gp] = gp; - } - - if ((sel_group = (uint8_t*) xd3_alloc (stream, sectors, 1)) == NULL) - { - ret = ENOMEM; - goto fail; - } - - djw_build_decoder (stream, groups+1, DJW_MAX_GBCLEN, sel_clen, - sel_inorder, sel_base, sel_limit, - & sel_minlen, & sel_maxlen); - - if ((ret = djw_decode_1_2 (stream, & bstate, & input, input_end, - sel_inorder, sel_base, - sel_limit, & sel_minlen, - & sel_maxlen, sel_mtf, - sectors, 0, sel_group))) { goto fail; } - } - - /* Now decode each sector. */ - { - /* Initialize for (groups==1) case. */ - uint8_t *gp_inorder = inorder[0]; - usize_t *gp_base = base[0]; - usize_t *gp_limit = limit[0]; - usize_t gp_minlen = minlen[0]; - usize_t gp_maxlen = maxlen[0]; - usize_t c; - - for (c = 0; c < sectors; c += 1) - { - usize_t n; - - if (groups >= 2) - { - gp = sel_group[c]; - - XD3_ASSERT (gp < groups); - - gp_inorder = inorder[gp]; - gp_base = base[gp]; - gp_limit = limit[gp]; - gp_minlen = minlen[gp]; - gp_maxlen = maxlen[gp]; - } - - if (output_end < output) - { - stream->msg = "secondary decoder invalid input"; - return XD3_INVALID_INPUT; - } - - /* Decode next sector. */ - n = xd3_min (sector_size, (usize_t) (output_end - output)); - - do - { - usize_t sym; - - if ((ret = djw_decode_symbol (stream, & bstate, - & input, input_end, - gp_inorder, gp_base, - gp_limit, gp_minlen, gp_maxlen, - & sym, ALPHABET_SIZE))) - { - goto fail; - } - - *output++ = sym; - } - while (--n); - } - } - } - } - - IF_REGRESSION (if ((ret = xd3_test_clean_bits (stream, & bstate))) - { goto fail; }); - XD3_ASSERT (ret == 0); - - fail: - xd3_free (stream, sel_group); - - (*input_pos) = input; - (*output_pos) = output; - return ret; -} - -#endif diff --git a/extern/xdelta3/xdelta3-fgk.h b/extern/xdelta3/xdelta3-fgk.h deleted file mode 100644 index 7011500..0000000 --- a/extern/xdelta3/xdelta3-fgk.h +++ /dev/null @@ -1,860 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2002, 2006, 2007. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* For demonstration purposes only. - */ - -#ifndef _XDELTA3_FGK_h_ -#define _XDELTA3_FGK_h_ - -/* An implementation of the FGK algorithm described by D.E. Knuth in - * "Dynamic Huffman Coding" in Journal of Algorithms 6. */ - -/* A 32bit counter (fgk_weight) is used as the frequency counter for - * nodes in the huffman tree. TODO: Need oto test for overflow and/or - * reset stats. */ - -typedef struct _fgk_stream fgk_stream; -typedef struct _fgk_node fgk_node; -typedef struct _fgk_block fgk_block; -typedef unsigned int fgk_bit; -typedef uint32_t fgk_weight; - -struct _fgk_block { - union { - fgk_node *un_leader; - fgk_block *un_freeptr; - } un; -}; - -#define block_leader un.un_leader -#define block_freeptr un.un_freeptr - -/* The code can also support fixed huffman encoding/decoding. */ -#define IS_ADAPTIVE 1 - -/* weight is a count of the number of times this element has been seen - * in the current encoding/decoding. parent, right_child, and - * left_child are pointers defining the tree structure. right and - * left point to neighbors in an ordered sequence of weights. The - * left child of a node is always guaranteed to have weight not - * greater than its sibling. fgk_blockLeader points to the element - * with the same weight as itself which is closest to the next - * increasing weight block. */ -struct _fgk_node -{ - fgk_weight weight; - fgk_node *parent; - fgk_node *left_child; - fgk_node *right_child; - fgk_node *left; - fgk_node *right; - fgk_block *my_block; -}; - -/* alphabet_size is the a count of the number of possible leaves in - * the huffman tree. The number of total nodes counting internal - * nodes is ((2 * alphabet_size) - 1). zero_freq_count is the number - * of elements remaining which have zero frequency. zero_freq_exp and - * zero_freq_rem satisfy the equation zero_freq_count = - * 2^zero_freq_exp + zero_freq_rem. root_node is the root of the - * tree, which is initialized to a node with zero frequency and - * contains the 0th such element. free_node contains a pointer to the - * next available fgk_node space. alphabet contains all the elements - * and is indexed by N. remaining_zeros points to the head of the - * list of zeros. */ -struct _fgk_stream -{ - usize_t alphabet_size; - usize_t zero_freq_count; - usize_t zero_freq_exp; - usize_t zero_freq_rem; - usize_t coded_depth; - - usize_t total_nodes; - usize_t total_blocks; - - fgk_bit *coded_bits; - - fgk_block *block_array; - fgk_block *free_block; - - fgk_node *decode_ptr; - fgk_node *remaining_zeros; - fgk_node *alphabet; - fgk_node *root_node; - fgk_node *free_node; -}; - -/*********************************************************************/ -/* Encoder */ -/*********************************************************************/ - -static fgk_stream* fgk_alloc (xd3_stream *stream /*, usize_t alphabet_size */); -static int fgk_init (xd3_stream *stream, - fgk_stream *h, - int is_encode); -static int fgk_encode_data (fgk_stream *h, - usize_t n); -static inline fgk_bit fgk_get_encoded_bit (fgk_stream *h); - -static int xd3_encode_fgk (xd3_stream *stream, - fgk_stream *sec_stream, - xd3_output *input, - xd3_output *output, - xd3_sec_cfg *cfg); - -/*********************************************************************/ -/* Decoder */ -/*********************************************************************/ - -static inline int fgk_decode_bit (fgk_stream *h, - fgk_bit b); -static int fgk_decode_data (fgk_stream *h); -static void fgk_destroy (xd3_stream *stream, - fgk_stream *h); - -static int xd3_decode_fgk (xd3_stream *stream, - fgk_stream *sec_stream, - const uint8_t **input, - const uint8_t *const input_end, - uint8_t **output, - const uint8_t *const output_end); - -/*********************************************************************/ -/* Private */ -/*********************************************************************/ - -static unsigned int fgk_find_nth_zero (fgk_stream *h, usize_t n); -static usize_t fgk_nth_zero (fgk_stream *h, usize_t n); -static void fgk_update_tree (fgk_stream *h, usize_t n); -static fgk_node* fgk_increase_zero_weight (fgk_stream *h, usize_t n); -static void fgk_eliminate_zero (fgk_stream* h, fgk_node *node); -static void fgk_move_right (fgk_stream *h, fgk_node *node); -static void fgk_promote (fgk_stream *h, fgk_node *node); -static void fgk_init_node (fgk_node *node, usize_t i, usize_t size); -static fgk_block* fgk_make_block (fgk_stream *h, fgk_node *l); -static void fgk_free_block (fgk_stream *h, fgk_block *b); -static void fgk_factor_remaining (fgk_stream *h); -static inline void fgk_swap_ptrs (fgk_node **one, fgk_node **two); - -/*********************************************************************/ -/* Basic Routines */ -/*********************************************************************/ - -/* returns an initialized huffman encoder for an alphabet with the - * given size. returns NULL if enough memory cannot be allocated */ -static fgk_stream* fgk_alloc (xd3_stream *stream /*, int alphabet_size0 */) -{ - usize_t alphabet_size0 = ALPHABET_SIZE; - fgk_stream *h; - - if ((h = (fgk_stream*) xd3_alloc (stream, 1, sizeof (fgk_stream))) == NULL) - { - return NULL; - } - - h->total_nodes = (2 * alphabet_size0) - 1; - h->total_blocks = (2 * h->total_nodes); - h->alphabet = (fgk_node*) xd3_alloc (stream, h->total_nodes, sizeof (fgk_node)); - h->block_array = (fgk_block*) xd3_alloc (stream, h->total_blocks, sizeof (fgk_block)); - h->coded_bits = (fgk_bit*) xd3_alloc (stream, alphabet_size0, sizeof (fgk_bit)); - - if (h->coded_bits == NULL || - h->alphabet == NULL || - h->block_array == NULL) - { - fgk_destroy (stream, h); - return NULL; - } - - h->alphabet_size = alphabet_size0; - - return h; -} - -static int fgk_init (xd3_stream *stream, fgk_stream *h, int is_encode) -{ - usize_t ui; - ssize_t si; - - h->root_node = h->alphabet; - h->decode_ptr = h->root_node; - h->free_node = h->alphabet + h->alphabet_size; - h->remaining_zeros = h->alphabet; - h->coded_depth = 0; - h->zero_freq_count = h->alphabet_size + 2; - - /* after two calls to factor_remaining, zero_freq_count == alphabet_size */ - fgk_factor_remaining(h); /* set ZFE and ZFR */ - fgk_factor_remaining(h); /* set ZFDB according to prev state */ - - IF_DEBUG (memset (h->alphabet, 0, sizeof (h->alphabet[0]) * h->total_nodes)); - - for (ui = 0; ui < h->total_blocks-1; ui += 1) - { - h->block_array[ui].block_freeptr = &h->block_array[ui + 1]; - } - - h->block_array[h->total_blocks - 1].block_freeptr = NULL; - h->free_block = h->block_array; - - /* Zero frequency nodes are inserted in the first alphabet_size - * positions, with Value, weight, and a pointer to the next zero - * frequency node. */ - for (si = h->alphabet_size - 1; si >= 0; si -= 1) - { - fgk_init_node (h->alphabet + si, (usize_t) si, h->alphabet_size); - } - - return 0; -} - -static void fgk_swap_ptrs(fgk_node **one, fgk_node **two) -{ - fgk_node *tmp = *one; - *one = *two; - *two = tmp; -} - -/* Takes huffman transmitter h and n, the nth elt in the alphabet, and - * returns the number of required to encode n. */ -static int fgk_encode_data (fgk_stream* h, usize_t n) -{ - fgk_node *target_ptr = h->alphabet + n; - - XD3_ASSERT (n < h->alphabet_size); - - h->coded_depth = 0; - - /* First encode the binary representation of the nth remaining - * zero frequency element in reverse such that bit, which will be - * encoded from h->coded_depth down to 0 will arrive in increasing - * order following the tree path. If there is only one left, it - * is not neccesary to encode these bits. */ - if (IS_ADAPTIVE && target_ptr->weight == 0) - { - unsigned int where, shift; - int bits; - - where = fgk_find_nth_zero(h, n); - shift = 1; - - if (h->zero_freq_rem == 0) - { - bits = h->zero_freq_exp; - } - else - { - bits = h->zero_freq_exp + 1; - } - - while (bits > 0) - { - h->coded_bits[h->coded_depth++] = (shift & where) && 1; - - bits -= 1; - shift <<= 1; - }; - - target_ptr = h->remaining_zeros; - } - - /* The path from root to node is filled into coded_bits in reverse so - * that it is encoded in the right order */ - while (target_ptr != h->root_node) - { - h->coded_bits[h->coded_depth++] = (target_ptr->parent->right_child == target_ptr); - - target_ptr = target_ptr->parent; - } - - if (IS_ADAPTIVE) - { - fgk_update_tree(h, n); - } - - return h->coded_depth; -} - -/* Should be called as many times as fgk_encode_data returns. - */ -static inline fgk_bit fgk_get_encoded_bit (fgk_stream *h) -{ - XD3_ASSERT (h->coded_depth > 0); - - return h->coded_bits[--h->coded_depth]; -} - -/* This procedure updates the tree after alphabet[n] has been encoded - * or decoded. - */ -static void fgk_update_tree (fgk_stream *h, usize_t n) -{ - fgk_node *incr_node; - - if (h->alphabet[n].weight == 0) - { - incr_node = fgk_increase_zero_weight (h, n); - } - else - { - incr_node = h->alphabet + n; - } - - while (incr_node != h->root_node) - { - fgk_move_right (h, incr_node); - fgk_promote (h, incr_node); - incr_node->weight += 1; /* incr the parent */ - incr_node = incr_node->parent; /* repeat */ - } - - h->root_node->weight += 1; -} - -static void fgk_move_right (fgk_stream *h, fgk_node *move_fwd) -{ - fgk_node **fwd_par_ptr, **back_par_ptr; - fgk_node *move_back, *tmp; - - move_back = move_fwd->my_block->block_leader; - - if (move_fwd == move_back || - move_fwd->parent == move_back || - move_fwd->weight == 0) - { - return; - } - - move_back->right->left = move_fwd; - - if (move_fwd->left) - { - move_fwd->left->right = move_back; - } - - tmp = move_fwd->right; - move_fwd->right = move_back->right; - - if (tmp == move_back) - { - move_back->right = move_fwd; - } - else - { - tmp->left = move_back; - move_back->right = tmp; - } - - tmp = move_back->left; - move_back->left = move_fwd->left; - - if (tmp == move_fwd) - { - move_fwd->left = move_back; - } - else - { - tmp->right = move_fwd; - move_fwd->left = tmp; - } - - if (move_fwd->parent->right_child == move_fwd) - { - fwd_par_ptr = &move_fwd->parent->right_child; - } - else - { - fwd_par_ptr = &move_fwd->parent->left_child; - } - - if (move_back->parent->right_child == move_back) - { - back_par_ptr = &move_back->parent->right_child; - } - else - { - back_par_ptr = &move_back->parent->left_child; - } - - fgk_swap_ptrs (&move_fwd->parent, &move_back->parent); - fgk_swap_ptrs (fwd_par_ptr, back_par_ptr); - - move_fwd->my_block->block_leader = move_fwd; -} - -/* Shifts node, the leader of its block, into the next block. */ -static void fgk_promote (fgk_stream *h, fgk_node *node) -{ - fgk_node *my_left, *my_right; - fgk_block *cur_block; - - my_right = node->right; - my_left = node->left; - cur_block = node->my_block; - - if (node->weight == 0) - { - return; - } - - /* if left is right child, parent of remaining zeros case (?), means parent - * has same weight as right child. */ - if (my_left == node->right_child && - node->left_child && - node->left_child->weight == 0) - { - XD3_ASSERT (node->left_child == h->remaining_zeros); - XD3_ASSERT (node->right_child->weight == (node->weight+1)); /* child weight was already incremented */ - - if (node->weight == (my_right->weight - 1) && my_right != h->root_node) - { - fgk_free_block (h, cur_block); - node->my_block = my_right->my_block; - my_left->my_block = my_right->my_block; - } - - return; - } - - if (my_left == h->remaining_zeros) - { - return; - } - - /* true if not the leftmost node */ - if (my_left->my_block == cur_block) - { - my_left->my_block->block_leader = my_left; - } - else - { - fgk_free_block (h, cur_block); - } - - /* node->parent != my_right */ - if ((node->weight == (my_right->weight - 1)) && (my_right != h->root_node)) - { - node->my_block = my_right->my_block; - } - else - { - node->my_block = fgk_make_block (h, node); - } -} - -/* When an element is seen the first time this is called to remove it from the list of - * zero weight elements and introduce a new internal node to the tree. */ -static fgk_node* fgk_increase_zero_weight (fgk_stream *h, usize_t n) -{ - fgk_node *this_zero, *new_internal, *zero_ptr; - - this_zero = h->alphabet + n; - - if (h->zero_freq_count == 1) - { - /* this is the last one */ - this_zero->right_child = NULL; - - if (this_zero->right->weight == 1) - { - this_zero->my_block = this_zero->right->my_block; - } - else - { - this_zero->my_block = fgk_make_block (h, this_zero); - } - - h->remaining_zeros = NULL; - - return this_zero; - } - - zero_ptr = h->remaining_zeros; - - new_internal = h->free_node++; - - new_internal->parent = zero_ptr->parent; - new_internal->right = zero_ptr->right; - new_internal->weight = 0; - new_internal->right_child = this_zero; - new_internal->left = this_zero; - - if (h->remaining_zeros == h->root_node) - { - /* This is the first element to be coded */ - h->root_node = new_internal; - this_zero->my_block = fgk_make_block (h, this_zero); - new_internal->my_block = fgk_make_block (h, new_internal); - } - else - { - new_internal->right->left = new_internal; - - if (zero_ptr->parent->right_child == zero_ptr) - { - zero_ptr->parent->right_child = new_internal; - } - else - { - zero_ptr->parent->left_child = new_internal; - } - - if (new_internal->right->weight == 1) - { - new_internal->my_block = new_internal->right->my_block; - } - else - { - new_internal->my_block = fgk_make_block (h, new_internal); - } - - this_zero->my_block = new_internal->my_block; - } - - fgk_eliminate_zero (h, this_zero); - - new_internal->left_child = h->remaining_zeros; - - this_zero->right = new_internal; - this_zero->left = h->remaining_zeros; - this_zero->parent = new_internal; - this_zero->left_child = NULL; - this_zero->right_child = NULL; - - h->remaining_zeros->parent = new_internal; - h->remaining_zeros->right = this_zero; - - return this_zero; -} - -/* When a zero frequency element is encoded, it is followed by the - * binary representation of the index into the remaining elements. - * Sets a cache to the element before it so that it can be removed - * without calling this procedure again. */ -static unsigned int fgk_find_nth_zero (fgk_stream* h, usize_t n) -{ - fgk_node *target_ptr = h->alphabet + n; - fgk_node *head_ptr = h->remaining_zeros; - unsigned int idx = 0; - - while (target_ptr != head_ptr) - { - head_ptr = head_ptr->right_child; - idx += 1; - } - - return idx; -} - -/* Splices node out of the list of zeros. */ -static void fgk_eliminate_zero (fgk_stream* h, fgk_node *node) -{ - if (h->zero_freq_count == 1) - { - return; - } - - fgk_factor_remaining(h); - - if (node->left_child == NULL) - { - h->remaining_zeros = h->remaining_zeros->right_child; - h->remaining_zeros->left_child = NULL; - } - else if (node->right_child == NULL) - { - node->left_child->right_child = NULL; - } - else - { - node->right_child->left_child = node->left_child; - node->left_child->right_child = node->right_child; - } -} - -static void fgk_init_node (fgk_node *node, usize_t i, usize_t size) -{ - if (i < size - 1) - { - node->right_child = node + 1; - } - else - { - node->right_child = NULL; - } - - if (i >= 1) - { - node->left_child = node - 1; - } - else - { - node->left_child = NULL; - } - - node->weight = 0; - node->parent = NULL; - node->right = NULL; - node->left = NULL; - node->my_block = NULL; -} - -/* The data structure used is an array of blocks, which are unions of - * free pointers and huffnode pointers. free blocks are a linked list - * of free blocks, the front of which is h->free_block. The used - * blocks are pointers to the head of each block. */ -static fgk_block* fgk_make_block (fgk_stream *h, fgk_node* lead) -{ - fgk_block *ret = h->free_block; - - XD3_ASSERT (h->free_block != NULL); - - h->free_block = h->free_block->block_freeptr; - - ret->block_leader = lead; - - return ret; -} - -/* Restores the block to the front of the free list. */ -static void fgk_free_block (fgk_stream *h, fgk_block *b) -{ - b->block_freeptr = h->free_block; - h->free_block = b; -} - -/* sets zero_freq_count, zero_freq_rem, and zero_freq_exp to satsity - * the equation given above. */ -static void fgk_factor_remaining (fgk_stream *h) -{ - unsigned int i; - - i = (--h->zero_freq_count); - h->zero_freq_exp = 0; - - while (i > 1) - { - h->zero_freq_exp += 1; - i >>= 1; - } - - i = 1 << h->zero_freq_exp; - - h->zero_freq_rem = h->zero_freq_count - i; -} - -/* receives a bit at a time and returns true when a complete code has - * been received. - */ -static inline int fgk_decode_bit (fgk_stream* h, fgk_bit b) -{ - XD3_ASSERT (b == 1 || b == 0); - - if (IS_ADAPTIVE && h->decode_ptr->weight == 0) - { - usize_t bitsreq; - - if (h->zero_freq_rem == 0) - { - bitsreq = h->zero_freq_exp; - } - else - { - bitsreq = h->zero_freq_exp + 1; - } - - h->coded_bits[h->coded_depth] = b; - h->coded_depth += 1; - - return h->coded_depth >= bitsreq; - } - else - { - if (b) - { - h->decode_ptr = h->decode_ptr->right_child; - } - else - { - h->decode_ptr = h->decode_ptr->left_child; - } - - if (h->decode_ptr->left_child == NULL) - { - /* If the weight is non-zero, finished. */ - if (h->decode_ptr->weight != 0) - { - return 1; - } - - /* zero_freq_count is dropping to 0, finished. */ - return h->zero_freq_count == 1; - } - else - { - return 0; - } - } -} - -static usize_t fgk_nth_zero (fgk_stream* h, usize_t n) -{ - fgk_node *ret = h->remaining_zeros; - - /* ERROR: if during this loop (ret->right_child == NULL) then the - * encoder's zero count is too high. Could return an error code - * now, but is probably unnecessary overhead, since the caller - * should check integrity anyway. */ - for (; n != 0 && ret->right_child != NULL; n -= 1) - { - ret = ret->right_child; - } - - return (usize_t)(ret - h->alphabet); -} - -/* once fgk_decode_bit returns 1, this retrieves an index into the - * alphabet otherwise this returns 0, indicating more bits are - * required. - */ -static int fgk_decode_data (fgk_stream* h) -{ - usize_t elt = (usize_t)(h->decode_ptr - h->alphabet); - - if (IS_ADAPTIVE && h->decode_ptr->weight == 0) { - usize_t i = 0; - usize_t n = 0; - - if (h->coded_depth > 0) - { - for (; i < h->coded_depth - 1; i += 1) - { - n |= h->coded_bits[i]; - n <<= 1; - } - } - - n |= h->coded_bits[i]; - elt = fgk_nth_zero(h, n); - } - - h->coded_depth = 0; - - if (IS_ADAPTIVE) - { - fgk_update_tree(h, elt); - } - - h->decode_ptr = h->root_node; - - return elt; -} - -static void fgk_destroy (xd3_stream *stream, - fgk_stream *h) -{ - if (h != NULL) - { - xd3_free (stream, h->alphabet); - xd3_free (stream, h->coded_bits); - xd3_free (stream, h->block_array); - xd3_free (stream, h); - } -} - -/*********************************************************************/ -/* Xdelta */ -/*********************************************************************/ - -static int -xd3_encode_fgk (xd3_stream *stream, fgk_stream *sec_stream, xd3_output *input, xd3_output *output, xd3_sec_cfg *cfg) -{ - bit_state bstate = BIT_STATE_ENCODE_INIT; - xd3_output *cur_page; - int ret; - - /* OPT: quit compression early if it looks bad */ - for (cur_page = input; cur_page; cur_page = cur_page->next_page) - { - const uint8_t *inp = cur_page->base; - const uint8_t *inp_max = inp + cur_page->next; - - while (inp < inp_max) - { - usize_t bits = fgk_encode_data (sec_stream, *inp++); - - while (bits--) - { - if ((ret = xd3_encode_bit (stream, & output, & bstate, fgk_get_encoded_bit (sec_stream)))) { return ret; } - } - } - } - - return xd3_flush_bits (stream, & output, & bstate); -} - -static int -xd3_decode_fgk (xd3_stream *stream, - fgk_stream *sec_stream, - const uint8_t **input_pos, - const uint8_t *const input_max, - uint8_t **output_pos, - const uint8_t *const output_max) -{ - bit_state bstate; - uint8_t *output = *output_pos; - const uint8_t *input = *input_pos; - - for (;;) - { - if (input == input_max) - { - stream->msg = "secondary decoder end of input"; - return XD3_INTERNAL; - } - - bstate.cur_byte = *input++; - - for (bstate.cur_mask = 1; bstate.cur_mask != 0x100; bstate.cur_mask <<= 1) - { - int done = fgk_decode_bit (sec_stream, (bstate.cur_byte & bstate.cur_mask) ? 1U : 0U); - - if (! done) { continue; } - - *output++ = fgk_decode_data (sec_stream); - - if (output == output_max) - { - /* During regression testing: */ - IF_REGRESSION ({ - int ret; - bstate.cur_mask <<= 1; - if ((ret = xd3_test_clean_bits (stream, & bstate))) { return ret; } - }); - - (*output_pos) = output; - (*input_pos) = input; - return 0; - } - } - } -} - -#endif /* _XDELTA3_FGK_ */ diff --git a/extern/xdelta3/xdelta3-hash.h b/extern/xdelta3/xdelta3-hash.h deleted file mode 100644 index e359436..0000000 --- a/extern/xdelta3/xdelta3-hash.h +++ /dev/null @@ -1,170 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _XDELTA3_HASH_H_ -#define _XDELTA3_HASH_H_ - -#if XD3_DEBUG -#define SMALL_HASH_DEBUG1(s,inp) \ - uint32_t debug_state; \ - uint32_t debug_hval = xd3_checksum_hash (& (s)->small_hash, \ - xd3_scksum (&debug_state, (inp), (s)->smatcher.small_look)) -#define SMALL_HASH_DEBUG2(s,inp) \ - XD3_ASSERT (debug_hval == xd3_checksum_hash (& (s)->small_hash, \ - xd3_scksum (&debug_state, (inp), (s)->smatcher.small_look))) -#else -#define SMALL_HASH_DEBUG1(s,inp) -#define SMALL_HASH_DEBUG2(s,inp) -#endif /* XD3_DEBUG */ - -/* This is a good hash multiplier for 32-bit LCGs: see "linear - * congruential generators of different sizes and good lattice - * structure" */ -static const uint32_t hash_multiplier = 1597334677U; - -/*********************************************************************** - Permute stuff - ***********************************************************************/ - -#if HASH_PERMUTE == 0 -#define PERMUTE(x) (x) -#else -#define PERMUTE(x) (__single_hash[(uint32_t)x]) - -extern const uint16_t __single_hash[256]; -#endif - -/* Update the checksum state. */ -#if ADLER_LARGE_CKSUM -inline uint32_t -xd3_large_cksum_update (uint32_t cksum, - const uint8_t *base, - usize_t look) { - uint32_t old_c = PERMUTE(base[0]); - uint32_t new_c = PERMUTE(base[look]); - uint32_t low = ((cksum & 0xffff) - old_c + new_c) & 0xffff; - uint32_t high = ((cksum >> 16) - (old_c * look) + low) & 0xffff; - return (high << 16) | low; -} -#else -/* TODO: revisit this topic */ -#endif - -#if UNALIGNED_OK -#define UNALIGNED_READ32(dest,src) (*(dest)) = (*(uint32_t*)(src)) -#else -#define UNALIGNED_READ32(dest,src) memcpy((dest), (src), 4); -#endif - -/* TODO: small cksum is hard-coded for 4 bytes (i.e., "look" is unused) */ -static inline uint32_t -xd3_scksum (uint32_t *state, - const uint8_t *base, - const usize_t look) -{ - UNALIGNED_READ32(state, base); - return (*state) * hash_multiplier; -} -static inline uint32_t -xd3_small_cksum_update (uint32_t *state, - const uint8_t *base, - usize_t look) -{ - UNALIGNED_READ32(state, base+1); - return (*state) * hash_multiplier; -} - -/*********************************************************************** - Ctable stuff - ***********************************************************************/ - -static inline usize_t -xd3_checksum_hash (const xd3_hash_cfg *cfg, const usize_t cksum) -{ - return (cksum >> cfg->shift) ^ (cksum & cfg->mask); -} - -/*********************************************************************** - Cksum function - ***********************************************************************/ - -#if ADLER_LARGE_CKSUM -static inline uint32_t -xd3_lcksum (const uint8_t *seg, const usize_t ln) -{ - usize_t i = 0; - uint32_t low = 0; - uint32_t high = 0; - - for (; i < ln; i += 1) - { - low += PERMUTE(*seg++); - high += low; - } - - return ((high & 0xffff) << 16) | (low & 0xffff); -} -#else -static inline uint32_t -xd3_lcksum (const uint8_t *seg, const usize_t ln) -{ - usize_t i, j; - uint32_t h = 0; - for (i = 0, j = ln - 1; i < ln; ++i, --j) { - h += PERMUTE(seg[i]) * hash_multiplier_powers[j]; - } - return h; -} -#endif - -#if XD3_ENCODER -static usize_t -xd3_size_log2 (usize_t slots) -{ - int bits = 28; /* This should not be an unreasonable limit. */ - int i; - - for (i = 3; i <= bits; i += 1) - { - if (slots < (1U << i)) - { - /* TODO: this is compaction=1 in checksum_test.cc and maybe should - * not be fixed at -1. */ - bits = i - 1; - break; - } - } - - return bits; -} - -static void -xd3_size_hashtable (xd3_stream *stream, - usize_t slots, - xd3_hash_cfg *cfg) -{ - int bits = xd3_size_log2 (slots); - - /* TODO: there's a 32-bit assumption here */ - cfg->size = (1 << bits); - cfg->mask = (cfg->size - 1); - cfg->shift = 32 - bits; -} -#endif - -#endif diff --git a/extern/xdelta3/xdelta3-internal.h b/extern/xdelta3/xdelta3-internal.h deleted file mode 100644 index eb360be..0000000 --- a/extern/xdelta3/xdelta3-internal.h +++ /dev/null @@ -1,372 +0,0 @@ -/* xdelta3 - delta compression tools and library - * Copyright (C) 2011, 2012, 2013, 2014, 2015 Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef XDELTA3_INTERNAL_H__ -#define XDELTA3_INTERNAL_H__ - -#include "xdelta3.h" - -typedef struct _main_file main_file; -typedef struct _main_extcomp main_extcomp; - -void main_buffree (void *ptr); -void* main_bufalloc (size_t size); -void main_file_init (main_file *xfile); -int main_file_close (main_file *xfile); -void main_file_cleanup (main_file *xfile); -int main_file_isopen (main_file *xfile); -int main_file_open (main_file *xfile, const char* name, int mode); -int main_file_exists (main_file *xfile); -int xd3_whole_append_window (xd3_stream *stream); -int xd3_main_cmdline (int argc, char **argv); -int main_file_read (main_file *ifile, - uint8_t *buf, - size_t size, - size_t *nread, - const char *msg); -int main_file_write (main_file *ofile, uint8_t *buf, - usize_t size, const char *msg); -int test_compare_files (const char* f0, const char* f1); -usize_t xd3_bytes_on_srcblk (xd3_source *src, xoff_t blkno); -xoff_t xd3_source_eof(const xd3_source *src); -uint32_t xd3_large_cksum_update (uint32_t cksum, - const uint8_t *base, - usize_t look); -int xd3_emit_byte (xd3_stream *stream, - xd3_output **outputp, - uint8_t code); - -int xd3_emit_bytes (xd3_stream *stream, - xd3_output **outputp, - const uint8_t *base, - usize_t size); -xd3_output* xd3_alloc_output (xd3_stream *stream, - xd3_output *old_output); - -int xd3_encode_init_full (xd3_stream *stream); -size_t xd3_pow2_roundup (size_t x); -int xd3_process_stream (int is_encode, - xd3_stream *stream, - int (*func) (xd3_stream *), - int close_stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max); - -#if PYTHON_MODULE || SWIG_MODULE || NOT_MAIN -int xd3_main_cmdline (int argc, char **argv); -#endif - -/* main_file->mode values */ -typedef enum -{ - XO_READ = 0, - XO_WRITE = 1 -} main_file_modes; - -#ifndef XD3_POSIX -#define XD3_POSIX 0 -#endif -#ifndef XD3_STDIO -#define XD3_STDIO 0 -#endif -#ifndef XD3_WIN32 -#define XD3_WIN32 0 -#endif -#ifndef NOT_MAIN -#define NOT_MAIN 0 -#endif - -/* If none are set, default to posix. */ -#if (XD3_POSIX + XD3_STDIO + XD3_WIN32) == 0 -#undef XD3_POSIX -#define XD3_POSIX 1 -#endif - -struct _main_file -{ -#if XD3_WIN32 - HANDLE file; -#elif XD3_STDIO - FILE *file; -#elif XD3_POSIX - int file; -#endif - - int mode; /* XO_READ and XO_WRITE */ - const char *filename; /* File name or /dev/stdin, - * /dev/stdout, /dev/stderr. */ - char *filename_copy; /* File name or /dev/stdin, - * /dev/stdout, /dev/stderr. */ - const char *realname; /* File name or /dev/stdin, - * /dev/stdout, /dev/stderr. */ - const main_extcomp *compressor; /* External compression struct. */ - int flags; /* RD_FIRST, RD_NONEXTERNAL, ... */ - xoff_t nread; /* for input position */ - xoff_t nwrite; /* for output position */ - uint8_t *snprintf_buf; /* internal snprintf() use */ - int size_known; /* Set by main_set_souze */ - xoff_t source_position; /* for avoiding seek in getblk_func */ - int seek_failed; /* after seek fails once, try FIFO */ -}; - -#ifdef _WIN32 -#define vsnprintf_func _vsnprintf -#define snprintf_func _snprintf -#else -#define vsnprintf_func vsnprintf -#define snprintf_func snprintf -#endif -#define short_sprintf(sb,fmt,...) \ - snprintf_func((sb).buf,sizeof((sb).buf),fmt,__VA_ARGS__) - -/* Type used for short snprintf calls. */ -typedef struct { - char buf[48]; -} shortbuf; - -/* Prior to SVN 303 this function was only defined in DJGPP and WIN32 - * environments and other platforms would use the builtin snprintf() - * with an arrangement of macros below. In OS X 10.6, Apply made - * snprintf() a macro, which defeated those macros (since snprintf - * would be evaluated before its argument macros were expanded, - * therefore always define xsnprintf_func. */ -#undef PRINTF_ATTRIBUTE -#ifdef __GNUC__ -/* Let's just assume no one uses gcc 2.x! */ -#define PRINTF_ATTRIBUTE(x,y) __attribute__ ((__format__ (__printf__, x, y))) -#else -#define PRINTF_ATTRIBUTE(x,y) -#endif - -/* Underlying xprintf() */ -int xsnprintf_func (char *str, int n, const char *fmt, ...) - PRINTF_ATTRIBUTE(3,4); - -/* XPR(NT "", ...) (used by main) prefixes an "xdelta3: " to the output. */ -void xprintf(const char *fmt, ...) PRINTF_ATTRIBUTE(1,2); -#define XPR xprintf -#define NT "xdelta3: " -#define NTR "" - -#ifndef UINT32_MAX -#define UINT32_MAX 4294967295U -#endif - -#ifndef UINT64_MAX -#define UINT64_MAX 18446744073709551615ULL -#endif - -#define UINT32_OFLOW_MASK 0xfe000000U -#define UINT64_OFLOW_MASK 0xfe00000000000000ULL - -/********************************************************************* - Integer encoder/decoder functions - **********************************************************************/ - -/* Consume N bytes of input, only used by the decoder. */ -#define DECODE_INPUT(n) \ - do { \ - stream->total_in += (xoff_t) (n); \ - stream->avail_in -= (n); \ - stream->next_in += (n); \ - } while (0) - -#define DECODE_INTEGER_TYPE(PART,OFLOW) \ - while (stream->avail_in != 0) \ - { \ - usize_t next = stream->next_in[0]; \ - \ - DECODE_INPUT(1); \ - \ - if (PART & OFLOW) \ - { \ - stream->msg = "overflow in decode_integer"; \ - return XD3_INVALID_INPUT; \ - } \ - \ - PART = (PART << 7) | (next & 127); \ - \ - if ((next & 128) == 0) \ - { \ - (*val) = PART; \ - PART = 0; \ - return 0; \ - } \ - } \ - \ - stream->msg = "further input required"; \ - return XD3_INPUT - -#define READ_INTEGER_TYPE(TYPE, OFLOW) \ - TYPE val = 0; \ - const uint8_t *inp = (*inpp); \ - usize_t next; \ - \ - do \ - { \ - if (inp == maxp) \ - { \ - stream->msg = "end-of-input in read_integer"; \ - return XD3_INVALID_INPUT; \ - } \ - \ - if (val & OFLOW) \ - { \ - stream->msg = "overflow in read_intger"; \ - return XD3_INVALID_INPUT; \ - } \ - \ - next = (*inp++); \ - val = (val << 7) | (next & 127); \ - } \ - while (next & 128); \ - \ - (*valp) = val; \ - (*inpp) = inp; \ - \ - return 0 - -#define EMIT_INTEGER_TYPE() \ - /* max 64-bit value in base-7 encoding is 9.1 bytes */ \ - uint8_t buf[10]; \ - usize_t bufi = 10; \ - \ - /* This loop performs division and turns on all MSBs. */ \ - do \ - { \ - buf[--bufi] = (num & 127) | 128; \ - num >>= 7U; \ - } \ - while (num != 0); \ - \ - /* Turn off MSB of the last byte. */ \ - buf[9] &= 127; \ - \ - return xd3_emit_bytes (stream, output, buf + bufi, 10 - bufi) - -#define IF_SIZEOF32(x) if (num < (1U << (7 * (x)))) return (x); -#define IF_SIZEOF64(x) if (num < (1ULL << (7 * (x)))) return (x); - -#if USE_UINT32 -static inline uint32_t -xd3_sizeof_uint32_t (uint32_t num) -{ - IF_SIZEOF32(1); - IF_SIZEOF32(2); - IF_SIZEOF32(3); - IF_SIZEOF32(4); - return 5; -} - -static inline int -xd3_decode_uint32_t (xd3_stream *stream, uint32_t *val) -{ DECODE_INTEGER_TYPE (stream->dec_32part, UINT32_OFLOW_MASK); } - -static inline int -xd3_read_uint32_t (xd3_stream *stream, const uint8_t **inpp, - const uint8_t *maxp, uint32_t *valp) -{ READ_INTEGER_TYPE (uint32_t, UINT32_OFLOW_MASK); } - -#if XD3_ENCODER -static inline int -xd3_emit_uint32_t (xd3_stream *stream, xd3_output **output, uint32_t num) -{ EMIT_INTEGER_TYPE (); } -#endif -#endif - -#if USE_UINT64 -static inline int -xd3_decode_uint64_t (xd3_stream *stream, uint64_t *val) -{ DECODE_INTEGER_TYPE (stream->dec_64part, UINT64_OFLOW_MASK); } - -#if XD3_ENCODER -static inline int -xd3_emit_uint64_t (xd3_stream *stream, xd3_output **output, uint64_t num) -{ EMIT_INTEGER_TYPE (); } -#endif - -/* These are tested but not used */ -#if REGRESSION_TEST -static int -xd3_read_uint64_t (xd3_stream *stream, const uint8_t **inpp, - const uint8_t *maxp, uint64_t *valp) -{ READ_INTEGER_TYPE (uint64_t, UINT64_OFLOW_MASK); } - -static uint32_t -xd3_sizeof_uint64_t (uint64_t num) -{ - IF_SIZEOF64(1); - IF_SIZEOF64(2); - IF_SIZEOF64(3); - IF_SIZEOF64(4); - IF_SIZEOF64(5); - IF_SIZEOF64(6); - IF_SIZEOF64(7); - IF_SIZEOF64(8); - IF_SIZEOF64(9); - - return 10; -} -#endif - -#endif - -#if SIZEOF_USIZE_T == 4 -#define USIZE_T_MAX UINT32_MAX -#define USIZE_T_MAXBLKSZ 0x80000000U -#define xd3_decode_size xd3_decode_uint32_t -#define xd3_emit_size xd3_emit_uint32_t -#define xd3_sizeof_size xd3_sizeof_uint32_t -#define xd3_read_size xd3_read_uint32_t -#elif SIZEOF_USIZE_T == 8 -#define USIZE_T_MAX UINT64_MAX -#define USIZE_T_MAXBLKSZ 0x8000000000000000ULL -#define xd3_decode_size xd3_decode_uint64_t -#define xd3_emit_size xd3_emit_uint64_t -#define xd3_sizeof_size xd3_sizeof_uint64_t -#define xd3_read_size xd3_read_uint64_t -#endif - -#if SIZEOF_XOFF_T == 4 -#define XOFF_T_MAX UINT32_MAX -#define xd3_emit_offset xd3_emit_uint32_t -static inline int -xd3_decode_offset (xd3_stream *stream, xoff_t *val) -{ - return xd3_decode_uint32_t (stream, (uint32_t*) val); -} -#elif SIZEOF_XOFF_T == 8 -#define XOFF_T_MAX UINT64_MAX -#define xd3_emit_offset xd3_emit_uint64_t -static inline int -xd3_decode_offset (xd3_stream *stream, xoff_t *val) -{ - return xd3_decode_uint64_t (stream, (uint64_t*) val); -} -#endif - -#define USIZE_T_OVERFLOW(a,b) ((USIZE_T_MAX - (usize_t) (a)) < (usize_t) (b)) -#define XOFF_T_OVERFLOW(a,b) ((XOFF_T_MAX - (xoff_t) (a)) < (xoff_t) (b)) - -#define MAX_LRU_SIZE 32U -#define XD3_MINSRCWINSZ (XD3_ALLOCSIZE * MAX_LRU_SIZE) -#define XD3_MAXSRCWINSZ (1ULL << 31) - -#endif // XDELTA3_INTERNAL_H__ diff --git a/extern/xdelta3/xdelta3-list.h b/extern/xdelta3/xdelta3-list.h deleted file mode 100644 index 6e3125f..0000000 --- a/extern/xdelta3/xdelta3-list.h +++ /dev/null @@ -1,130 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2002, 2006, 2007. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef __XDELTA3_LIST__ -#define __XDELTA3_LIST__ - -#define XD3_MAKELIST(LTYPE,ETYPE,LNAME) \ - \ -static inline ETYPE* \ -LTYPE ## _entry (LTYPE* l) \ -{ \ - return (ETYPE*) ((char*) l - (ptrdiff_t) &((ETYPE*) 0)->LNAME); \ -} \ - \ -static inline void \ -LTYPE ## _init (LTYPE *l) \ -{ \ - l->next = l; \ - l->prev = l; \ -} \ - \ -static inline void \ -LTYPE ## _add (LTYPE *prev, LTYPE *next, LTYPE *ins) \ -{ \ - next->prev = ins; \ - prev->next = ins; \ - ins->next = next; \ - ins->prev = prev; \ -} \ - \ -static inline void \ -LTYPE ## _push_back (LTYPE *l, ETYPE *i) \ -{ \ - LTYPE ## _add (l->prev, l, & i->LNAME); \ -} \ - \ -static inline void \ -LTYPE ## _del (LTYPE *next, \ - LTYPE *prev) \ -{ \ - next->prev = prev; \ - prev->next = next; \ -} \ - \ -static inline ETYPE* \ -LTYPE ## _remove (ETYPE *f) \ -{ \ - LTYPE *i = f->LNAME.next; \ - LTYPE ## _del (f->LNAME.next, f->LNAME.prev); \ - return LTYPE ## _entry (i); \ -} \ - \ -static inline ETYPE* \ -LTYPE ## _pop_back (LTYPE *l) \ -{ \ - LTYPE *i = l->prev; \ - LTYPE ## _del (i->next, i->prev); \ - return LTYPE ## _entry (i); \ -} \ - \ -static inline ETYPE* \ -LTYPE ## _pop_front (LTYPE *l) \ -{ \ - LTYPE *i = l->next; \ - LTYPE ## _del (i->next, i->prev); \ - return LTYPE ## _entry (i); \ -} \ - \ -static inline int \ -LTYPE ## _empty (LTYPE *l) \ -{ \ - return l == l->next; \ -} \ - \ -static inline ETYPE* \ -LTYPE ## _front (LTYPE *f) \ -{ \ - return LTYPE ## _entry (f->next); \ -} \ - \ -static inline ETYPE* \ -LTYPE ## _back (LTYPE *f) \ -{ \ - return LTYPE ## _entry (f->prev); \ -} \ - \ -static inline int \ -LTYPE ## _end (LTYPE *f, ETYPE *i) \ -{ \ - return f == & i->LNAME; \ -} \ - \ -static inline ETYPE* \ -LTYPE ## _next (ETYPE *f) \ -{ \ - return LTYPE ## _entry (f->LNAME.next); \ -} \ - \ -static inline usize_t \ -LTYPE ## _length (LTYPE *l) \ -{ \ - LTYPE *p; \ - int c = 0; \ - \ - for (p = l->next; p != l; p = p->next) \ - { \ - c += 1; \ - } \ - \ - return c; \ -} \ - \ -typedef int unused_ ## LTYPE - -#endif diff --git a/extern/xdelta3/xdelta3-lzma.h b/extern/xdelta3/xdelta3-lzma.h deleted file mode 100644 index bcf2ddf..0000000 --- a/extern/xdelta3/xdelta3-lzma.h +++ /dev/null @@ -1,196 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2012, 2013, 2014, 2015. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* Note: The use of the _easy_ decoder means we're not calling the - * xd3_stream malloc hooks. TODO(jmacd) Fix if anyone cares. */ - -#ifndef _XDELTA3_LZMA_H_ -#define _XDELTA3_LZMA_H_ - -#include - -typedef struct _xd3_lzma_stream xd3_lzma_stream; - -struct _xd3_lzma_stream { - lzma_stream lzma; - lzma_options_lzma options; - lzma_filter filters[2]; -}; - -xd3_sec_stream* -xd3_lzma_alloc (xd3_stream *stream) -{ - return (xd3_sec_stream*) xd3_alloc (stream, sizeof (xd3_lzma_stream), 1); -} - -void -xd3_lzma_destroy (xd3_stream *stream, xd3_sec_stream *sec_stream) -{ - xd3_lzma_stream *ls = (xd3_lzma_stream*) sec_stream; - lzma_end (&ls->lzma); - xd3_free (stream, ls); -} - -int -xd3_lzma_init (xd3_stream *stream, xd3_lzma_stream *sec, int is_encode) -{ - int ret; - - memset (&sec->lzma, 0, sizeof(sec->lzma)); - - if (is_encode) - { - int preset = (stream->flags & XD3_COMPLEVEL_MASK) >> XD3_COMPLEVEL_SHIFT; - - if (lzma_lzma_preset(&sec->options, preset)) - { - stream->msg = "invalid lzma preset"; - return XD3_INVALID; - } - - sec->filters[0].id = LZMA_FILTER_LZMA2; - sec->filters[0].options = &sec->options; - sec->filters[1].id = LZMA_VLI_UNKNOWN; - - ret = lzma_stream_encoder (&sec->lzma, &sec->filters[0], LZMA_CHECK_NONE); - } - else - { - ret = lzma_stream_decoder (&sec->lzma, UINT64_MAX, LZMA_TELL_NO_CHECK); - } - - if (ret != LZMA_OK) - { - stream->msg = "lzma stream init failed"; - return XD3_INTERNAL; - } - - return 0; -} - -int xd3_decode_lzma (xd3_stream *stream, xd3_lzma_stream *sec, - const uint8_t **input_pos, - const uint8_t *const input_end, - uint8_t **output_pos, - const uint8_t *const output_end) -{ - uint8_t *output = *output_pos; - const uint8_t *input = *input_pos; - size_t avail_in = input_end - input; - size_t avail_out = output_end - output; - - sec->lzma.avail_in = avail_in; - sec->lzma.next_in = input; - sec->lzma.avail_out = avail_out; - sec->lzma.next_out = output; - - while (1) - { - int lret = lzma_code (&sec->lzma, LZMA_RUN); - - switch (lret) - { - case LZMA_NO_CHECK: - case LZMA_OK: - if (sec->lzma.avail_out == 0) - { - (*output_pos) = sec->lzma.next_out; - (*input_pos) = sec->lzma.next_in; - return 0; - } - break; - - default: - stream->msg = "lzma decoding error"; - return XD3_INTERNAL; - } - } -} - -#if XD3_ENCODER - -int xd3_encode_lzma (xd3_stream *stream, - xd3_lzma_stream *sec, - xd3_output *input, - xd3_output *output, - xd3_sec_cfg *cfg) - -{ - lzma_action action = LZMA_RUN; - - cfg->inefficient = 1; /* Can't skip windows */ - sec->lzma.next_in = NULL; - sec->lzma.avail_in = 0; - sec->lzma.next_out = (output->base + output->next); - sec->lzma.avail_out = (output->avail - output->next); - - while (1) - { - int lret; - size_t nwrite; - if (sec->lzma.avail_in == 0 && input != NULL) - { - sec->lzma.avail_in = input->next; - sec->lzma.next_in = input->base; - - if ((input = input->next_page) == NULL) - { - action = LZMA_SYNC_FLUSH; - } - } - - lret = lzma_code (&sec->lzma, action); - - nwrite = (output->avail - output->next) - sec->lzma.avail_out; - - if (nwrite != 0) - { - output->next += nwrite; - - if (output->next == output->avail) - { - if ((output = xd3_alloc_output (stream, output)) == NULL) - { - return ENOMEM; - } - - sec->lzma.next_out = output->base; - sec->lzma.avail_out = output->avail; - } - } - - switch (lret) - { - case LZMA_OK: - break; - - case LZMA_STREAM_END: - return 0; - - default: - stream->msg = "lzma encoding error"; - return XD3_INTERNAL; - } - } - - return 0; -} - -#endif /* XD3_ENCODER */ - -#endif /* _XDELTA3_LZMA_H_ */ diff --git a/extern/xdelta3/xdelta3-main.h b/extern/xdelta3/xdelta3-main.h deleted file mode 100644 index fac5d8d..0000000 --- a/extern/xdelta3/xdelta3-main.h +++ /dev/null @@ -1,4036 +0,0 @@ -/* xdelta3 - delta compression tools and library - * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, - * 2009, 2010, 2011, 2012, 2013, 2014, 2015 Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* This is all the extra stuff you need for convenience to users in a - * command line application. It contains these major components: - * - * 1. VCDIFF tools 2. external compression support (this is - * POSIX-specific). 3. a general read/write loop that handles all of - * the Xdelta decode/encode/VCDIFF-print functions 4. command-line - * interpreter 5. an Xdelta application header which stores default - * filename, external compression settings 6. output/error printing - * 7. basic file support and OS interface - */ - -/* TODO list: 1. do exact gzip-like filename, stdout handling. make a - * .vcdiff extension, refuse to encode to stdout without -cf, etc. - * 2. Allow the user to add a comment string to the app header without - * disturbing the default behavior. - */ - -/* On error handling and printing: - * - * The xdelta library sets stream->msg to indicate what condition - * caused an internal failure, but many failures originate here and - * are printed here. The return convention is 0 for success, as - * throughout Xdelta code, but special attention is required here for - * the operating system calls with different error handling. See the - * main_file_* routines. All errors in this file have a message - * printed at the time of occurance. Since some of these calls occur - * within calls to the library, the error may end up being printed - * again with a more general error message. - */ - -/*********************************************************************/ - -/* Combines xd3_strerror() and strerror() */ -const char* xd3_mainerror(int err_num); - -#include "xdelta3-internal.h" - -int -xsnprintf_func (char *str, int n, const char *fmt, ...) -{ - va_list a; - int ret; - va_start (a, fmt); - ret = vsnprintf_func (str, n, fmt, a); - va_end (a); - if (ret < 0) - { - ret = n; - } - return ret; -} - -/* Handle externally-compressed inputs. */ -#ifndef EXTERNAL_COMPRESSION -#define EXTERNAL_COMPRESSION 1 -#endif - -#define PRINTHDR_SPECIAL -4378291 - -/* The number of soft-config variables. */ -#define XD3_SOFTCFG_VARCNT 7 - -/* this is used as in XPR(NT XD3_LIB_ERRMSG (stream, ret)) to print an - * error message from the library. */ -#define XD3_LIB_ERRMSG(stream, ret) "%s: %s\n", \ - xd3_errstring (stream), xd3_mainerror (ret) - -#if XD3_POSIX -#include /* close, read, write... */ -#include -#include -#endif - -#ifndef _WIN32 -#include /* lots */ -#include /* gettimeofday() */ -#include /* stat() and fstat() */ -#else -#if defined(_MSC_VER) -#define strtoll _strtoi64 -#endif -#include -#include -#ifndef WIFEXITED -# define WIFEXITED(stat) (((*((int *) &(stat))) & 0xff) == 0) -#endif -#ifndef WEXITSTATUS -# define WEXITSTATUS(stat) (((*((int *) &(stat))) >> 8) & 0xff) -#endif -#ifndef S_ISREG -//# ifdef S_IFREG -//# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) -//# else -# define S_ISREG(m) 1 -//# endif -#endif /* !S_ISREG */ - -// For standard input/output handles -static STARTUPINFO winStartupInfo; -#endif - -/********************************************************************** - ENUMS and TYPES - *********************************************************************/ - -/* These flags (mainly pertaining to main_read() operations) are set - * in the main_file->flags variable. All are related to with external - * decompression support. - * - * RD_FIRST causes the external decompression check when the input is - * first read. - * - * RD_NONEXTERNAL disables external decompression for reading a - * compressed input, in the case of Xdelta inputs. Note: Xdelta is - * supported as an external compression type, which makes is the - * reason for this flag. An example to justify this is: to create a - * delta between two files that are VCDIFF-compressed. Two external - * Xdelta decoders are run to supply decompressed source and target - * inputs to the Xdelta encoder. */ -typedef enum -{ - RD_FIRST = (1 << 0), - RD_NONEXTERNAL = (1 << 1), - RD_DECOMPSET = (1 << 2), - RD_MAININPUT = (1 << 3), -} xd3_read_flags; - -/* Main commands. For example, CMD_PRINTHDR is the "xdelta printhdr" - * command. */ -typedef enum -{ - CMD_NONE = 0, - CMD_PRINTHDR, - CMD_PRINTHDRS, - CMD_PRINTDELTA, - CMD_RECODE, - CMD_MERGE_ARG, - CMD_MERGE, -#if XD3_ENCODER - CMD_ENCODE, -#endif - CMD_DECODE, - CMD_TEST, - CMD_CONFIG, -} xd3_cmd; - -#if XD3_ENCODER -#define CMD_DEFAULT CMD_ENCODE -#define IS_ENCODE(cmd) (cmd == CMD_ENCODE) -#else -#define CMD_DEFAULT CMD_DECODE -#define IS_ENCODE(cmd) (0) -#endif - -typedef struct _main_merge main_merge; -typedef struct _main_merge_list main_merge_list; - -/* Various strings and magic values used to detect and call external - * compression. See below for examples. */ -struct _main_extcomp -{ - const char *recomp_cmdname; - const char *recomp_options; - - const char *decomp_cmdname; - const char *decomp_options; - - const char *ident; - const char *magic; - usize_t magic_size; - int flags; -}; - -/* Merge state: */ - -struct _main_merge_list -{ - main_merge_list *next; - main_merge_list *prev; -}; - -struct _main_merge -{ - const char *filename; - - main_merge_list link; -}; - -XD3_MAKELIST(main_merge_list,main_merge,link); - -/* TODO: really need to put options in a struct so that internal - * callers can easily reset state. */ - -#define DEFAULT_VERBOSE 0 - -/* Program options: various command line flags and options. */ -static int option_stdout = 0; -static int option_force = 0; -static int option_verbose = DEFAULT_VERBOSE; -static int option_quiet = 0; -static int option_use_appheader = 1; -static uint8_t* option_appheader = NULL; -static int option_use_secondary = 1; -static const char* option_secondary = NULL; -static int option_use_checksum = 1; -static const char* option_smatch_config = NULL; -static int option_no_compress = 0; -static int option_no_output = 0; /* do not write output */ -static const char *option_source_filename = NULL; - -static int option_level = XD3_DEFAULT_LEVEL; -static usize_t option_iopt_size = XD3_DEFAULT_IOPT_SIZE; -static usize_t option_winsize = XD3_DEFAULT_WINSIZE; -/* Note: option_srcwinsz is restricted from [16Kb, 4Gb], because - * addresses in the large hash checksum are 32 bits. The flag is read - * as xoff_t, so that 4Gb != 0. */ -static xoff_t option_srcwinsz = XD3_DEFAULT_SRCWINSZ; -static usize_t option_sprevsz = XD3_DEFAULT_SPREVSZ; - -/* These variables are supressed to avoid their use w/o support. main() warns - * appropriately when external compression is not enabled. */ -#if EXTERNAL_COMPRESSION -static int num_subprocs = 0; -static int option_force2 = 0; -static int option_decompress_inputs = 1; -static int option_recompress_outputs = 1; -#endif - -/* This is for comparing "printdelta" output without attention to - * copy-instruction modes. */ -#if VCDIFF_TOOLS -static int option_print_cpymode = 1; /* Note: see reset_defaults(). */ -#endif - -/* Static variables */ -IF_DEBUG(static int main_mallocs = 0;) - -static char* program_name = NULL; -static uint8_t* appheader_used = NULL; -static uint8_t* main_bdata = NULL; -static usize_t main_bsize = 0; - -/* Hacks for VCDIFF tools, recode command. */ -static int allow_fake_source = 0; - -/* recode_stream is used by both recode/merge for reading vcdiff inputs */ -static xd3_stream *recode_stream = NULL; - -/* merge_stream is used by merge commands for storing the source encoding */ -static xd3_stream *merge_stream = NULL; - -/* This array of compressor types is compiled even if EXTERNAL_COMPRESSION is - * false just so the program knows the mapping of IDENT->NAME. */ -static main_extcomp extcomp_types[] = -{ - { "bzip2", "-c", "bzip2", "-dc", "B", "BZh", 3, 0 }, - { "gzip", "-c", "gzip", "-dc", "G", "\037\213", 2, 0 }, - { "compress", "-c", "uncompress", "-c", "Z", "\037\235", 2, 0 }, - - /* Xz is lzma with a magic number http://tukaani.org/xz/format.html */ - { "xz", "-c", "xz", "-dc", "Y", "\xfd\x37\x7a\x58\x5a\x00", 2, 0 }, -}; - -static int main_input (xd3_cmd cmd, main_file *ifile, - main_file *ofile, main_file *sfile); -static void main_get_appheader (xd3_stream *stream, main_file *ifile, - main_file *output, main_file *sfile); - -static int main_getblk_func (xd3_stream *stream, - xd3_source *source, - xoff_t blkno); -static void main_free (void *ptr); -static void* main_malloc (size_t size); - -static int main_file_stat (main_file *xfile, xoff_t *size); -static int main_file_seek (main_file *xfile, xoff_t pos); -static int main_read_primary_input (main_file *file, - uint8_t *buf, - size_t size, - size_t *nread); - -static const char* main_format_bcnt (xoff_t r, shortbuf *buf); -static int main_help (void); - -#if XD3_ENCODER -static int xd3_merge_input_output (xd3_stream *stream, - xd3_whole_state *source); -#endif - -/* The code in xdelta3-blk.h is essentially part of this unit, see - * comments there. */ -#include "xdelta3-blkcache.h" - -void (*xprintf_message_func)(const char*msg) = NULL; - -void -xprintf (const char *fmt, ...) -{ - char buf[1000]; - va_list a; - int size; - va_start (a, fmt); - size = vsnprintf_func (buf, 1000, fmt, a); - va_end (a); - if (size < 0) - { - size = sizeof(buf) - 1; - buf[size] = 0; - } - if (xprintf_message_func != NULL) { - xprintf_message_func(buf); - } else { - size_t ignore = fwrite(buf, 1, size, stderr); - (void) ignore; - } -} - -static int -main_version (void) -{ - /* $Format: " XPR(NTR \"Xdelta version $Xdelta3Version$, Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, Joshua MacDonald\\n\");" $ */ - XPR(NTR "Xdelta version 3.0.11, Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Joshua MacDonald\n"); - XPR(NTR "Xdelta comes with ABSOLUTELY NO WARRANTY.\n"); - XPR(NTR "This is free software, and you are welcome to redistribute it\n"); - XPR(NTR "under certain conditions; see \"COPYING\" for details.\n"); - return EXIT_SUCCESS; -} - -static int -main_config (void) -{ - main_version (); - - XPR(NTR "EXTERNAL_COMPRESSION=%d\n", EXTERNAL_COMPRESSION); - XPR(NTR "REGRESSION_TEST=%d\n", REGRESSION_TEST); - XPR(NTR "SECONDARY_DJW=%d\n", SECONDARY_DJW); - XPR(NTR "SECONDARY_FGK=%d\n", SECONDARY_FGK); - XPR(NTR "SECONDARY_LZMA=%d\n", SECONDARY_LZMA); - XPR(NTR "UNALIGNED_OK=%d\n", UNALIGNED_OK); - XPR(NTR "VCDIFF_TOOLS=%d\n", VCDIFF_TOOLS); - XPR(NTR "XD3_ALLOCSIZE=%d\n", XD3_ALLOCSIZE); - XPR(NTR "XD3_DEBUG=%d\n", XD3_DEBUG); - XPR(NTR "XD3_ENCODER=%d\n", XD3_ENCODER); - XPR(NTR "XD3_POSIX=%d\n", XD3_POSIX); - XPR(NTR "XD3_STDIO=%d\n", XD3_STDIO); - XPR(NTR "XD3_WIN32=%d\n", XD3_WIN32); - XPR(NTR "XD3_USE_LARGEFILE64=%d\n", XD3_USE_LARGEFILE64); - XPR(NTR "XD3_DEFAULT_LEVEL=%d\n", XD3_DEFAULT_LEVEL); - XPR(NTR "XD3_DEFAULT_IOPT_SIZE=%d\n", XD3_DEFAULT_IOPT_SIZE); - XPR(NTR "XD3_DEFAULT_SPREVSZ=%d\n", XD3_DEFAULT_SPREVSZ); - XPR(NTR "XD3_DEFAULT_SRCWINSZ=%d\n", XD3_DEFAULT_SRCWINSZ); - XPR(NTR "XD3_DEFAULT_WINSIZE=%d\n", XD3_DEFAULT_WINSIZE); - XPR(NTR "XD3_HARDMAXWINSIZE=%d\n", XD3_HARDMAXWINSIZE); - XPR(NTR "sizeof(void*)=%d\n", (int)sizeof(void*)); - XPR(NTR "sizeof(int)=%d\n", (int)sizeof(int)); - XPR(NTR "sizeof(long)=%d\n", (int)sizeof(long)); - XPR(NTR "sizeof(long long)=%d\n", (int)sizeof(long long)); - XPR(NTR "sizeof(size_t)=%d\n", (int)sizeof(size_t)); - XPR(NTR "sizeof(uint32_t)=%d\n", (int)sizeof(uint32_t)); - XPR(NTR "sizeof(uint64_t)=%d\n", (int)sizeof(uint64_t)); - XPR(NTR "sizeof(usize_t)=%d\n", (int)sizeof(usize_t)); - XPR(NTR "sizeof(xoff_t)=%d\n", (int)sizeof(xoff_t)); - - return EXIT_SUCCESS; -} - -static void -reset_defaults(void) -{ - option_stdout = 0; - option_force = 0; - option_verbose = DEFAULT_VERBOSE; - option_quiet = 0; - option_appheader = NULL; - option_use_secondary = 1; - option_secondary = NULL; - option_smatch_config = NULL; - option_no_compress = 0; - option_no_output = 0; - option_source_filename = NULL; - program_name = NULL; - appheader_used = NULL; - main_bdata = NULL; - main_bsize = 0; - allow_fake_source = 0; - option_smatch_config = NULL; - - main_lru_reset(); - - option_use_appheader = 1; - option_use_checksum = 1; -#if EXTERNAL_COMPRESSION - option_force2 = 0; - option_decompress_inputs = 1; - option_recompress_outputs = 1; - num_subprocs = 0; -#endif -#if VCDIFF_TOOLS - option_print_cpymode = 1; -#endif - option_level = XD3_DEFAULT_LEVEL; - option_iopt_size = XD3_DEFAULT_IOPT_SIZE; - option_winsize = XD3_DEFAULT_WINSIZE; - option_srcwinsz = XD3_DEFAULT_SRCWINSZ; - option_sprevsz = XD3_DEFAULT_SPREVSZ; -} - -static void* -main_malloc1 (size_t size) -{ - void* r = malloc (size); - if (r == NULL) { XPR(NT "malloc: %s\n", xd3_mainerror (ENOMEM)); } - return r; -} - -void* main_bufalloc (size_t size) { -#if XD3_WIN32 - return VirtualAlloc(NULL, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); -#else - return main_malloc1(size); -#endif -} - -static void* -main_malloc (size_t size) -{ - void *r = main_malloc1 (size); - if (r) { IF_DEBUG (main_mallocs += 1); } - return r; -} - -static void* -main_alloc (void *opaque, - size_t items, - usize_t size) -{ - return main_malloc1 (items * size); -} - -static void -main_free1 (void *opaque, void *ptr) -{ - free (ptr); -} - -static void -main_free (void *ptr) -{ - if (ptr) - { - IF_DEBUG (main_mallocs -= 1); - main_free1 (NULL, ptr); - IF_DEBUG (XD3_ASSERT(main_mallocs >= 0)); - } -} - -void main_buffree (void *ptr) { -#if XD3_WIN32 - VirtualFree(ptr, 0, MEM_RELEASE); -#else - main_free1(NULL, ptr); -#endif -} - -/* This ensures that (ret = errno) always indicates failure, in case errno was - * accidentally not set. If this prints there's a bug somewhere. */ -static int -get_errno (void) -{ -#ifndef _WIN32 - if (errno == 0) - { - XPR(NT "you found a bug: expected errno != 0\n"); - errno = XD3_INTERNAL; - } - return errno; -#else - DWORD err_num = GetLastError(); - if (err_num == NO_ERROR) - { - err_num = XD3_INTERNAL; - } - return err_num; -#endif -} - -const char* -xd3_mainerror(int err_num) { -#ifndef _WIN32 - const char* x = xd3_strerror (err_num); - if (x != NULL) - { - return x; - } - return strerror(err_num); -#else - static char err_buf[256]; - const char* x = xd3_strerror (err_num); - if (x != NULL) - { - return x; - } - memset (err_buf, 0, 256); - FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | - FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, err_num, - MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), - err_buf, 256, NULL); - if (err_buf[0] != 0 && err_buf[strlen(err_buf) - 1] == '\n') - { - err_buf[strlen(err_buf) - 1] = 0; - } - return err_buf; -#endif -} - -static long -get_millisecs_now (void) -{ -#ifndef _WIN32 - struct timeval tv; - - gettimeofday (& tv, NULL); - - return (tv.tv_sec) * 1000L + (tv.tv_usec) / 1000; -#else - SYSTEMTIME st; - FILETIME ft; - __int64 *pi = (__int64*)&ft; - GetLocalTime(&st); - SystemTimeToFileTime(&st, &ft); - return (long)((*pi) / 10000); -#endif -} - -/* Always >= 1 millisec, right? */ -static long -get_millisecs_since (void) -{ - static long last = 0; - long now = get_millisecs_now(); - long diff = now - last; - last = now; - return diff; -} - -static const char* -main_format_bcnt (xoff_t r, shortbuf *buf) -{ - static const char* fmts[] = { "B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB" }; - usize_t i; - - for (i = 0; i < SIZEOF_ARRAY(fmts) - 1; i += 1) - { - xoff_t new_r; - - if (r == 0) - { - short_sprintf (*buf, "0 %s", fmts[i]); - return buf->buf; - } - - if (r >= 1 && r < 10) - { - short_sprintf (*buf, "%.2f %s", (double) r, fmts[i]); - return buf->buf; - } - - if (r >= 10 && r < 100) - { - short_sprintf (*buf, "%.1f %s", (double) r, fmts[i]); - return buf->buf; - } - - if (r >= 100 && r < 1000) - { - short_sprintf (*buf, "%"Q"u %s", r, fmts[i]); - return buf->buf; - } - - new_r = r / 1024; - - if (new_r < 10) - { - short_sprintf (*buf, "%.2f %s", (double) r / 1024.0, fmts[i + 1]); - return buf->buf; - } - - if (new_r < 100) - { - short_sprintf (*buf, "%.1f %s", (double) r / 1024.0, fmts[i + 1]); - return buf->buf; - } - - r = new_r; - } - XD3_ASSERT (0); - return ""; -} - -static char* -main_format_rate (xoff_t bytes, long millis, shortbuf *buf) -{ - xoff_t r = (xoff_t)(1.0 * bytes / (1.0 * millis / 1000.0)); - static shortbuf lbuf; - - main_format_bcnt (r, &lbuf); - short_sprintf (*buf, "%s/s", lbuf.buf); - return buf->buf; -} - -static char* -main_format_millis (long millis, shortbuf *buf) -{ - if (millis < 1000) - { - short_sprintf (*buf, "%lu ms", millis); - } - else if (millis < 10000) - { - short_sprintf (*buf, "%.1f sec", millis / 1000.0); - } - else - { - short_sprintf (*buf, "%lu sec", millis / 1000L); - } - return buf->buf; -} - -/* A safe version of strtol for xoff_t. */ -static int -main_strtoxoff (const char* s, xoff_t *xo, char which) -{ - char *e; - xoff_t x; - - XD3_ASSERT(s && *s != 0); - - { - /* Should check LONG_MIN, LONG_MAX, LLONG_MIN, LLONG_MAX? */ -#if SIZEOF_XOFF_T == 4 - long xx = strtol (s, &e, 0); -#else - long long xx = strtoll (s, &e, 0); -#endif - - if (xx < 0) - { - XPR(NT "-%c: negative integer: %s\n", which, s); - return EXIT_FAILURE; - } - - x = xx; - } - - if (*e != 0) - { - XPR(NT "-%c: invalid integer: %s\n", which, s); - return EXIT_FAILURE; - } - - (*xo) = x; - return 0; -} - -static int -main_atoux (const char* arg, xoff_t *xo, xoff_t low, - xoff_t high, char which) -{ - xoff_t x; - int ret; - - if ((ret = main_strtoxoff (arg, & x, which))) { return ret; } - - if (x < low) - { - XPR(NT "-%c: minimum value: %"Q"u\n", which, low); - return EXIT_FAILURE; - } - if (high != 0 && x > high) - { - XPR(NT "-%c: maximum value: %"Q"u\n", which, high); - return EXIT_FAILURE; - } - (*xo) = x; - return 0; -} - -static int -main_atou (const char* arg, usize_t *uo, usize_t low, - usize_t high, char which) -{ - int ret; - xoff_t xo; - if ((ret = main_atoux (arg, &xo, low, high, which))) - { - return ret; - } - *uo = (usize_t)xo; - return 0; -} - -/****************************************************************** - FILE BASICS - ******************************************************************/ - -/* With all the variation in file system-call semantics, arguments, - * return values and error-handling for the POSIX and STDIO file APIs, - * the insides of these functions make me sick, which is why these - * wrappers exist. */ - -#define XOPEN_OPNAME (xfile->mode == XO_READ ? "read" : "write") -#define XOPEN_STDIO (xfile->mode == XO_READ ? "rb" : "wb") -#define XOPEN_POSIX (xfile->mode == XO_READ ? \ - O_RDONLY : O_WRONLY | O_CREAT | O_TRUNC) -#define XOPEN_MODE (xfile->mode == XO_READ ? 0 : 0666) - -#define XF_ERROR(op, name, ret) \ - do { if (!option_quiet) { XPR(NT "file %s failed: %s: %s: %s\n", (op), \ - XOPEN_OPNAME, (name), xd3_mainerror (ret)); } } while (0) - -#if XD3_STDIO -#define XFNO(f) fileno(f->file) -#define XSTDOUT_XF(f) { (f)->file = stdout; (f)->filename = "/dev/stdout"; } -#define XSTDIN_XF(f) { (f)->file = stdin; (f)->filename = "/dev/stdin"; } - -#elif XD3_POSIX -#define XFNO(f) f->file -#define XSTDOUT_XF(f) \ - { (f)->file = STDOUT_FILENO; (f)->filename = "/dev/stdout"; } -#define XSTDIN_XF(f) \ - { (f)->file = STDIN_FILENO; (f)->filename = "/dev/stdin"; } - -#elif XD3_WIN32 -#define XFNO(f) -1 -#define XSTDOUT_XF(f) { \ - (f)->file = GetStdHandle(STD_OUTPUT_HANDLE); \ - (f)->filename = "(stdout)"; \ - } -#define XSTDIN_XF(f) { \ - (f)->file = GetStdHandle(STD_INPUT_HANDLE); \ - (f)->filename = "(stdin)"; \ - } -#endif - -void -main_file_init (main_file *xfile) -{ - memset (xfile, 0, sizeof (*xfile)); - -#if XD3_POSIX - xfile->file = -1; -#endif -#if XD3_WIN32 - xfile->file = INVALID_HANDLE_VALUE; -#endif -} - -int -main_file_isopen (main_file *xfile) -{ -#if XD3_STDIO - return xfile->file != NULL; - -#elif XD3_POSIX - return xfile->file != -1; - -#elif XD3_WIN32 - return xfile->file != INVALID_HANDLE_VALUE; -#endif -} - -int -main_file_close (main_file *xfile) -{ - int ret = 0; - - if (! main_file_isopen (xfile)) - { - return 0; - } - -#if XD3_STDIO - ret = fclose (xfile->file); - xfile->file = NULL; - -#elif XD3_POSIX - ret = close (xfile->file); - xfile->file = -1; - -#elif XD3_WIN32 - if (!CloseHandle(xfile->file)) { - ret = get_errno (); - } - xfile->file = INVALID_HANDLE_VALUE; -#endif - - if (ret != 0) { XF_ERROR ("close", xfile->filename, ret = get_errno ()); } - return ret; -} - -void -main_file_cleanup (main_file *xfile) -{ - XD3_ASSERT (xfile != NULL); - - if (main_file_isopen (xfile)) - { - main_file_close (xfile); - } - - if (xfile->snprintf_buf != NULL) - { - main_free(xfile->snprintf_buf); - xfile->snprintf_buf = NULL; - } - - if (xfile->filename_copy != NULL) - { - main_free(xfile->filename_copy); - xfile->filename_copy = NULL; - } -} - -int -main_file_open (main_file *xfile, const char* name, int mode) -{ - int ret = 0; - - xfile->mode = mode; - - XD3_ASSERT (name != NULL); - XD3_ASSERT (! main_file_isopen (xfile)); - if (name[0] == 0) - { - XPR(NT "invalid file name: empty string\n"); - return XD3_INVALID; - } - - IF_DEBUG1(DP(RINT "[main] open source %s\n", name)); - -#if XD3_STDIO - xfile->file = fopen (name, XOPEN_STDIO); - - ret = (xfile->file == NULL) ? get_errno () : 0; - -#elif XD3_POSIX - /* TODO: Should retry this call if interrupted, similar to read/write */ - if ((ret = open (name, XOPEN_POSIX, XOPEN_MODE)) < 0) - { - ret = get_errno (); - } - else - { - xfile->file = ret; - ret = 0; - } - -#elif XD3_WIN32 - xfile->file = CreateFile(name, - (mode == XO_READ) ? GENERIC_READ : GENERIC_WRITE, - FILE_SHARE_READ, - NULL, - (mode == XO_READ) ? - OPEN_EXISTING : - (option_force ? CREATE_ALWAYS : CREATE_NEW), - FILE_ATTRIBUTE_NORMAL, - NULL); - if (xfile->file == INVALID_HANDLE_VALUE) - { - ret = get_errno (); - } -#endif - if (ret) { XF_ERROR ("open", name, ret); } - else { xfile->realname = name; xfile->nread = 0; } - return ret; -} - -int -main_file_stat (main_file *xfile, xoff_t *size) -{ - int ret = 0; -#if XD3_WIN32 - if (GetFileType(xfile->file) != FILE_TYPE_DISK) - { - return -1; - } -# if (_WIN32_WINNT >= 0x0500) - { - LARGE_INTEGER li; - if (GetFileSizeEx(xfile->file, &li) == 0) - { - return get_errno (); - } - *size = li.QuadPart; - } -# else - { - DWORD filesize = GetFileSize(xfile->file, NULL); - if (filesize == INVALID_FILE_SIZE) - { - return get_errno () - } - *size = filesize; - } -# endif -#else - struct stat sbuf; - if (fstat (XFNO (xfile), & sbuf) < 0) - { - ret = get_errno (); - return ret; - } - - if (! S_ISREG (sbuf.st_mode)) - { - return ESPIPE; - } - (*size) = sbuf.st_size; -#endif - return ret; -} - -int -main_file_exists (main_file *xfile) -{ - struct stat sbuf; - return stat (xfile->filename, & sbuf) == 0 && S_ISREG (sbuf.st_mode); -} - -#if (XD3_POSIX || EXTERNAL_COMPRESSION) -/* POSIX-generic code takes a function pointer to read() or write(). - * This calls the function repeatedly until the buffer is full or EOF. - * The NREAD parameter is not set for write, NULL is passed. Return - * is signed, < 0 indicate errors, otherwise byte count. */ -typedef int (xd3_posix_func) (int fd, uint8_t *buf, usize_t size); - -static int -xd3_posix_io (int fd, uint8_t *buf, size_t size, - xd3_posix_func *func, size_t *nread) -{ - int ret; - size_t nproc = 0; - - while (nproc < size) - { - size_t tryread = xd3_min(size - nproc, 1U << 30); - ssize_t result = (*func) (fd, buf + nproc, tryread); - - if (result < 0) - { - ret = get_errno (); - if (ret != EAGAIN && ret != EINTR) - { - return ret; - } - continue; - } - - if (nread != NULL && result == 0) { break; } - - nproc += result; - } - if (nread != NULL) { (*nread) = nproc; } - return 0; -} -#endif - -#if XD3_WIN32 -static int -xd3_win32_io (HANDLE file, uint8_t *buf, size_t size, - int is_read, size_t *nread) -{ - int ret = 0; - size_t nproc = 0; - - while (nproc < size) - { - DWORD nproc2 = 0; /* hmm */ - DWORD nremain = size - nproc; - if ((is_read ? - ReadFile (file, buf + nproc, nremain, &nproc2, NULL) : - WriteFile (file, buf + nproc, nremain, &nproc2, NULL)) == 0) - { - ret = get_errno(); - if (ret != ERROR_HANDLE_EOF && ret != ERROR_BROKEN_PIPE) - { - return ret; - } - /* By falling through here, we'll break this loop in the - * read case in case of eof or broken pipe. */ - } - - nproc += nproc2; - - if (nread != NULL && nproc2 == 0) { break; } - } - if (nread != NULL) { (*nread) = nproc; } - return 0; -} -#endif - -/* POSIX is unbuffered, while STDIO is buffered. main_file_read() - * should always be called on blocks. */ -int -main_file_read (main_file *ifile, - uint8_t *buf, - size_t size, - size_t *nread, - const char *msg) -{ - int ret = 0; - IF_DEBUG1(DP(RINT "[main] read %s up to %"Z"u\n", ifile->filename, size)); - -#if XD3_STDIO - size_t result; - - result = fread (buf, 1, size, ifile->file); - - if (result < size && ferror (ifile->file)) - { - ret = get_errno (); - } - else - { - *nread = result; - } - -#elif XD3_POSIX - ret = xd3_posix_io (ifile->file, buf, size, (xd3_posix_func*) &read, nread); -#elif XD3_WIN32 - ret = xd3_win32_io (ifile->file, buf, size, 1 /* is_read */, nread); -#endif - - if (ret) - { - XPR(NT "%s: %s: %s\n", msg, ifile->filename, xd3_mainerror (ret)); - } - else - { - if (option_verbose > 4) { XPR(NT "read %s: %"Z"u bytes\n", - ifile->filename, (*nread)); } - ifile->nread += (*nread); - } - - return ret; -} - -int -main_file_write (main_file *ofile, uint8_t *buf, usize_t size, const char *msg) -{ - int ret = 0; - - IF_DEBUG1(DP(RINT "[main] write %u\n bytes", size)); - -#if XD3_STDIO - usize_t result; - - result = fwrite (buf, 1, size, ofile->file); - - if (result != size) { ret = get_errno (); } - -#elif XD3_POSIX - ret = xd3_posix_io (ofile->file, buf, size, (xd3_posix_func*) &write, NULL); - -#elif XD3_WIN32 - ret = xd3_win32_io (ofile->file, buf, size, 0, NULL); - -#endif - - if (ret) - { - XPR(NT "%s: %s: %s\n", msg, ofile->filename, xd3_mainerror (ret)); - } - else - { - if (option_verbose > 5) { XPR(NT "write %s: %u bytes\n", - ofile->filename, size); } - ofile->nwrite += size; - } - - return ret; -} - -static int -main_file_seek (main_file *xfile, xoff_t pos) -{ - int ret = 0; - -#if XD3_STDIO - if (fseek (xfile->file, pos, SEEK_SET) != 0) { ret = get_errno (); } - -#elif XD3_POSIX - if ((xoff_t) lseek (xfile->file, pos, SEEK_SET) != pos) - { ret = get_errno (); } - -#elif XD3_WIN32 -# if (_WIN32_WINNT >= 0x0500) - LARGE_INTEGER move, out; - move.QuadPart = pos; - if (SetFilePointerEx(xfile->file, move, &out, FILE_BEGIN) == 0) - { - ret = get_errno (); - } -# else - if (SetFilePointer(xfile->file, (LONG)pos, NULL, FILE_BEGIN) == - INVALID_SET_FILE_POINTER) - { - ret = get_errno (); - } -# endif -#endif - - return ret; -} - -/* This function simply writes the stream output buffer, if there is - * any, for encode, decode and recode commands. (The VCDIFF tools use - * main_print_func()). */ -static int -main_write_output (xd3_stream* stream, main_file *ofile) -{ - int ret; - - IF_DEBUG1(DP(RINT "[main] write(%s) %u\n bytes", ofile->filename, stream->avail_out)); - - if (option_no_output) - { - return 0; - } - - if (stream->avail_out > 0 && - (ret = main_file_write (ofile, stream->next_out, - stream->avail_out, "write failed"))) - { - return ret; - } - - return 0; -} - -static int -main_set_secondary_flags (xd3_config *config) -{ - int ret; - if (!option_use_secondary) - { - return 0; - } - if (option_secondary == NULL) - { - /* Set a default secondary compressor if LZMA is built in, otherwise - * default to no secondary compressor. */ - if (SECONDARY_LZMA) - { - config->flags |= XD3_SEC_LZMA; - } - } - else - { - if (strcmp (option_secondary, "lzma") == 0 && SECONDARY_LZMA) - { - config->flags |= XD3_SEC_LZMA; - } - else if (strcmp (option_secondary, "fgk") == 0 && SECONDARY_FGK) - { - config->flags |= XD3_SEC_FGK; - } - else if (strncmp (option_secondary, "djw", 3) == 0 && SECONDARY_DJW) - { - usize_t level = XD3_DEFAULT_SECONDARY_LEVEL; - - config->flags |= XD3_SEC_DJW; - - if (strlen (option_secondary) > 3 && - (ret = main_atou (option_secondary + 3, - &level, - 0, 9, 'S')) != 0 && - !option_quiet) - { - return XD3_INVALID; - } - - /* XD3_SEC_NOXXXX flags disable secondary compression on - * a per-section basis. For djw, ngroups=1 indicates - * minimum work, ngroups=0 uses default settings, which - * is > 1 groups by default. */ - if (level < 1) { config->flags |= XD3_SEC_NODATA; } - if (level < 7) { config->sec_data.ngroups = 1; } - else { config->sec_data.ngroups = 0; } - - if (level < 3) { config->flags |= XD3_SEC_NOINST; } - if (level < 8) { config->sec_inst.ngroups = 1; } - else { config->sec_inst.ngroups = 0; } - - if (level < 5) { config->flags |= XD3_SEC_NOADDR; } - if (level < 9) { config->sec_addr.ngroups = 1; } - else { config->sec_addr.ngroups = 0; } - } - else if (*option_secondary == 0 || - strcmp (option_secondary, "none") == 0) - { - } - else - { - if (!option_quiet) - { - XPR(NT "unrecognized or not compiled secondary compressor: %s\n", - option_secondary); - } - return XD3_INVALID; - } - } - - return 0; -} - -/****************************************************************** - VCDIFF TOOLS - *****************************************************************/ - -#include "xdelta3-merge.h" - -#if VCDIFF_TOOLS - -/* The following macros let VCDIFF print using main_file_write(), - * for example: - * - * VC(UT "trying to be portable: %d\n", x)VE; - */ -#define SNPRINTF_BUFSIZE 1024 -#define VC do { if (((ret = xsnprintf_func -#define UT (char*)xfile->snprintf_buf, SNPRINTF_BUFSIZE, -#define VE ) >= SNPRINTF_BUFSIZE \ - && (ret = main_print_overflow(ret)) != 0) \ - || (ret = main_file_write(xfile, xfile->snprintf_buf, \ - (usize_t)ret, "print")) != 0) \ - { return ret; } } while (0) - -static int -main_print_overflow (int x) -{ - XPR(NT "internal print buffer overflow: %d bytes\n", x); - return XD3_INTERNAL; -} - -/* This function prints a single VCDIFF window. */ -static int -main_print_window (xd3_stream* stream, main_file *xfile) -{ - int ret; - usize_t size = 0; - - VC(UT " Offset Code Type1 Size1 @Addr1 + Type2 Size2 @Addr2\n")VE; - - while (stream->inst_sect.buf < stream->inst_sect.buf_max) - { - usize_t code = stream->inst_sect.buf[0]; - const uint8_t *addr_before = stream->addr_sect.buf; - const uint8_t *inst_before = stream->inst_sect.buf; - usize_t addr_bytes; - usize_t inst_bytes; - usize_t size_before = size; - - if ((ret = xd3_decode_instruction (stream))) - { - XPR(NT "instruction decode error at %"Q"u: %s\n", - stream->dec_winstart + size, stream->msg); - return ret; - } - - addr_bytes = (usize_t)(stream->addr_sect.buf - addr_before); - inst_bytes = (usize_t)(stream->inst_sect.buf - inst_before); - - VC(UT " %06"Q"u %03u %s %6u", stream->dec_winstart + size, - option_print_cpymode ? code : 0, - xd3_rtype_to_string ((xd3_rtype) stream->dec_current1.type, - option_print_cpymode), - stream->dec_current1.size)VE; - - if (stream->dec_current1.type != XD3_NOOP) - { - if (stream->dec_current1.type >= XD3_CPY) - { - if (stream->dec_current1.addr >= stream->dec_cpylen) - { - VC(UT " T@%-6u", - stream->dec_current1.addr - stream->dec_cpylen)VE; - } - else - { - VC(UT " S@%-6"Q"u", - stream->dec_cpyoff + stream->dec_current1.addr)VE; - } - } - else - { - VC(UT " ")VE; - } - - size += stream->dec_current1.size; - } - - if (stream->dec_current2.type != XD3_NOOP) - { - VC(UT " %s %6u", - xd3_rtype_to_string ((xd3_rtype) stream->dec_current2.type, - option_print_cpymode), - stream->dec_current2.size)VE; - - if (stream->dec_current2.type >= XD3_CPY) - { - if (stream->dec_current2.addr >= stream->dec_cpylen) - { - VC(UT " T@%-6u", - stream->dec_current2.addr - stream->dec_cpylen)VE; - } - else - { - VC(UT " S@%-6"Q"u", - stream->dec_cpyoff + stream->dec_current2.addr)VE; - } - } - - size += stream->dec_current2.size; - } - - VC(UT "\n")VE; - - if (option_verbose && - addr_bytes + inst_bytes >= (size - size_before) && - (stream->dec_current1.type >= XD3_CPY || - stream->dec_current2.type >= XD3_CPY)) - { - VC(UT " %06"Q"u (inefficiency) %u encoded as %u bytes\n", - stream->dec_winstart + size_before, - size - size_before, - addr_bytes + inst_bytes)VE; - } - } - - if (stream->dec_tgtlen != size && (stream->flags & XD3_SKIP_WINDOW) == 0) - { - XPR(NT "target window size inconsistency"); - return XD3_INTERNAL; - } - - if (stream->dec_position != stream->dec_maxpos) - { - XPR(NT "target window position inconsistency"); - return XD3_INTERNAL; - } - - if (stream->addr_sect.buf != stream->addr_sect.buf_max) - { - XPR(NT "address section inconsistency"); - return XD3_INTERNAL; - } - - return 0; -} - -static int -main_print_vcdiff_file (main_file *xfile, main_file *file, const char *type) -{ - int ret; /* Used by above macros */ - if (file->filename) - { - VC(UT "XDELTA filename (%s): %s\n", type, - file->filename)VE; - } - if (file->compressor) - { - VC(UT "XDELTA ext comp (%s): %s\n", type, - file->compressor->recomp_cmdname)VE; - } - return 0; -} - -/* This function prints a VCDIFF input, mainly for debugging purposes. */ -static int -main_print_func (xd3_stream* stream, main_file *xfile) -{ - int ret; - - if (option_no_output) - { - return 0; - } - - if (xfile->snprintf_buf == NULL) - { - if ((xfile->snprintf_buf = - (uint8_t*)main_malloc(SNPRINTF_BUFSIZE)) == NULL) - { - return ENOMEM; - } - } - - if (stream->dec_winstart == 0) - { - VC(UT "VCDIFF version: 0\n")VE; - VC(UT "VCDIFF header size: %d\n", - stream->dec_hdrsize)VE; - VC(UT "VCDIFF header indicator: ")VE; - if ((stream->dec_hdr_ind & VCD_SECONDARY) != 0) - VC(UT "VCD_SECONDARY ")VE; - if ((stream->dec_hdr_ind & VCD_CODETABLE) != 0) - VC(UT "VCD_CODETABLE ")VE; - if ((stream->dec_hdr_ind & VCD_APPHEADER) != 0) - VC(UT "VCD_APPHEADER ")VE; - if (stream->dec_hdr_ind == 0) - VC(UT "none")VE; - VC(UT "\n")VE; - - IF_SEC(VC(UT "VCDIFF secondary compressor: %s\n", - stream->sec_type ? stream->sec_type->name : "none")VE); - IF_NSEC(VC(UT "VCDIFF secondary compressor: unsupported\n")VE); - - if (stream->dec_hdr_ind & VCD_APPHEADER) - { - uint8_t *apphead; - usize_t appheadsz; - ret = xd3_get_appheader (stream, & apphead, & appheadsz); - - if (ret == 0 && appheadsz > 0) - { - int sq = option_quiet; - main_file i, o, s; - XD3_ASSERT (apphead != NULL); - VC(UT "VCDIFF application header: ")VE; - if ((ret = main_file_write (xfile, apphead, - appheadsz, "print")) != 0) - { return ret; } - VC(UT "\n")VE; - - main_file_init (& i); - main_file_init (& o); - main_file_init (& s); - option_quiet = 1; - main_get_appheader (stream, &i, & o, & s); - option_quiet = sq; - if ((ret = main_print_vcdiff_file (xfile, & o, "output"))) - { return ret; } - if ((ret = main_print_vcdiff_file (xfile, & s, "source"))) - { return ret; } - main_file_cleanup (& i); - main_file_cleanup (& o); - main_file_cleanup (& s); - } - } - } - else - { - VC(UT "\n")VE; - } - - VC(UT "VCDIFF window number: %"Q"u\n", stream->current_window)VE; - VC(UT "VCDIFF window indicator: ")VE; - if ((stream->dec_win_ind & VCD_SOURCE) != 0) VC(UT "VCD_SOURCE ")VE; - if ((stream->dec_win_ind & VCD_TARGET) != 0) VC(UT "VCD_TARGET ")VE; - if ((stream->dec_win_ind & VCD_ADLER32) != 0) VC(UT "VCD_ADLER32 ")VE; - if (stream->dec_win_ind == 0) VC(UT "none")VE; - VC(UT "\n")VE; - - if ((stream->dec_win_ind & VCD_ADLER32) != 0) - { - VC(UT "VCDIFF adler32 checksum: %08X\n", - (usize_t)stream->dec_adler32)VE; - } - - if (stream->dec_del_ind != 0) - { - VC(UT "VCDIFF delta indicator: ")VE; - if ((stream->dec_del_ind & VCD_DATACOMP) != 0) VC(UT "VCD_DATACOMP ")VE; - if ((stream->dec_del_ind & VCD_INSTCOMP) != 0) VC(UT "VCD_INSTCOMP ")VE; - if ((stream->dec_del_ind & VCD_ADDRCOMP) != 0) VC(UT "VCD_ADDRCOMP ")VE; - if (stream->dec_del_ind == 0) VC(UT "none")VE; - VC(UT "\n")VE; - } - - if (stream->dec_winstart != 0) - { - VC(UT "VCDIFF window at offset: %"Q"u\n", stream->dec_winstart)VE; - } - - if (SRCORTGT (stream->dec_win_ind)) - { - VC(UT "VCDIFF copy window length: %u\n", - (usize_t)stream->dec_cpylen)VE; - VC(UT "VCDIFF copy window offset: %"Q"u\n", - stream->dec_cpyoff)VE; - } - - VC(UT "VCDIFF delta encoding length: %u\n", - (usize_t)stream->dec_enclen)VE; - VC(UT "VCDIFF target window length: %u\n", - (usize_t)stream->dec_tgtlen)VE; - - VC(UT "VCDIFF data section length: %u\n", - (usize_t)stream->data_sect.size)VE; - VC(UT "VCDIFF inst section length: %u\n", - (usize_t)stream->inst_sect.size)VE; - VC(UT "VCDIFF addr section length: %u\n", - (usize_t)stream->addr_sect.size)VE; - - ret = 0; - if ((stream->flags & XD3_JUST_HDR) != 0) - { - /* Print a header -- finished! */ - ret = PRINTHDR_SPECIAL; - } - else if ((stream->flags & XD3_SKIP_WINDOW) == 0) - { - ret = main_print_window (stream, xfile); - } - - return ret; -} - -static int -main_recode_copy (xd3_stream* stream, - xd3_output* output, - xd3_desect* input) -{ - int ret; - - XD3_ASSERT(output != NULL); - XD3_ASSERT(output->next_page == NULL); - - if ((ret = xd3_decode_allocate (recode_stream, - input->size, - &output->base, - &output->avail))) - { - XPR(NT XD3_LIB_ERRMSG (stream, ret)); - return ret; - } - - memcpy (output->base, - /* Note: decoder advances buf, so get base of buffer with - * buf_max - size */ - input->buf_max - input->size, - input->size); - output->next = input->size; - return 0; -} - -// Re-encode one window -static int -main_recode_func (xd3_stream* stream, main_file *ofile) -{ - int ret; - xd3_source decode_source; - - XD3_ASSERT(stream->dec_state == DEC_FINISH); - XD3_ASSERT(recode_stream->enc_state == ENC_INIT || - recode_stream->enc_state == ENC_INPUT); - - // Copy partial decoder output to partial encoder inputs - if ((ret = main_recode_copy (recode_stream, - DATA_HEAD(recode_stream), - &stream->data_sect)) || - (ret = main_recode_copy (recode_stream, - INST_HEAD(recode_stream), - &stream->inst_sect)) || - (ret = main_recode_copy (recode_stream, - ADDR_HEAD(recode_stream), - &stream->addr_sect))) - { - return ret; - } - - // This jumps to xd3_emit_hdr() - recode_stream->enc_state = ENC_FLUSH; - recode_stream->avail_in = stream->dec_tgtlen; - - if (SRCORTGT (stream->dec_win_ind)) - { - recode_stream->src = & decode_source; - decode_source.srclen = stream->dec_cpylen; - decode_source.srcbase = stream->dec_cpyoff; - } - - if (option_use_checksum && - (stream->dec_win_ind & VCD_ADLER32) != 0) - { - recode_stream->flags |= XD3_ADLER32_RECODE; - recode_stream->recode_adler32 = stream->dec_adler32; - } - - if (option_use_appheader != 0 && - option_appheader != NULL) - { - xd3_set_appheader (recode_stream, option_appheader, - (usize_t) strlen ((char*) option_appheader)); - } - else if (option_use_appheader != 0 && - option_appheader == NULL) - { - if (stream->dec_appheader != NULL) - { - xd3_set_appheader (recode_stream, - stream->dec_appheader, stream->dec_appheadsz); - } - } - - // Output loop - for (;;) - { - switch((ret = xd3_encode_input (recode_stream))) - { - case XD3_INPUT: { - /* finished recoding one window */ - stream->total_out = recode_stream->total_out; - return 0; - } - case XD3_OUTPUT: { - /* main_file_write below */ - break; - } - case XD3_GOTHEADER: - case XD3_WINSTART: - case XD3_WINFINISH: { - /* ignore */ - continue; - } - case XD3_GETSRCBLK: - case 0: { - return XD3_INTERNAL; - } - default: - return ret; - } - - if ((ret = main_write_output (recode_stream, ofile))) - { - return ret; - } - - xd3_consume_output (recode_stream); - } -} -#endif /* VCDIFF_TOOLS */ - -/******************************************************************* - VCDIFF merging - ******************************************************************/ - -#if VCDIFF_TOOLS -/* Modifies static state. */ -static int -main_init_recode_stream (void) -{ - int ret; - int stream_flags = XD3_ADLER32_NOVER | XD3_SKIP_EMIT; - int recode_flags; - xd3_config recode_config; - - XD3_ASSERT (recode_stream == NULL); - - if ((recode_stream = (xd3_stream*) main_malloc(sizeof(xd3_stream))) == NULL) - { - return ENOMEM; - } - - recode_flags = (stream_flags & XD3_SEC_TYPE); - - recode_config.alloc = main_alloc; - recode_config.freef = main_free1; - - xd3_init_config(&recode_config, recode_flags); - - if ((ret = main_set_secondary_flags (&recode_config)) || - (ret = xd3_config_stream (recode_stream, &recode_config)) || - (ret = xd3_encode_init_partial (recode_stream)) || - (ret = xd3_whole_state_init (recode_stream))) - { - XPR(NT XD3_LIB_ERRMSG (recode_stream, ret)); - xd3_free_stream (recode_stream); - recode_stream = NULL; - return ret; - } - - return 0; -} - -/* This processes the sequence of -m arguments. The final input - * is processed as part of the ordinary main_input() loop. */ -static int -main_merge_arguments (main_merge_list* merges) -{ - int ret = 0; - int count = 0; - main_merge *merge = NULL; - xd3_stream merge_input; - - if (main_merge_list_empty (merges)) - { - return 0; - } - - if ((ret = xd3_config_stream (& merge_input, NULL)) || - (ret = xd3_whole_state_init (& merge_input))) - { - XPR(NT XD3_LIB_ERRMSG (& merge_input, ret)); - return ret; - } - - merge = main_merge_list_front (merges); - while (!main_merge_list_end (merges, merge)) - { - main_file mfile; - main_file_init (& mfile); - mfile.filename = merge->filename; - mfile.flags = RD_NONEXTERNAL; - - if ((ret = main_file_open (& mfile, merge->filename, XO_READ))) - { - goto error; - } - - ret = main_input (CMD_MERGE_ARG, & mfile, NULL, NULL); - - if (ret == 0) - { - if (count++ == 0) - { - /* The first merge source is the next merge input. */ - xd3_swap_whole_state (& recode_stream->whole_target, - & merge_input.whole_target); - } - else - { - /* Merge the recode_stream with merge_input. */ - ret = xd3_merge_input_output (recode_stream, - & merge_input.whole_target); - - /* Save the next merge source in merge_input. */ - xd3_swap_whole_state (& recode_stream->whole_target, - & merge_input.whole_target); - } - } - - main_file_cleanup (& mfile); - - if (recode_stream != NULL) - { - xd3_free_stream (recode_stream); - main_free (recode_stream); - recode_stream = NULL; - } - - if (main_bdata != NULL) - { - main_buffree (main_bdata); - main_bdata = NULL; - main_bsize = 0; - } - - if (ret != 0) - { - goto error; - } - - merge = main_merge_list_next (merge); - } - - XD3_ASSERT (merge_stream == NULL); - - if ((merge_stream = (xd3_stream*) main_malloc (sizeof(xd3_stream))) == NULL) - { - ret = ENOMEM; - goto error; - } - - if ((ret = xd3_config_stream (merge_stream, NULL)) || - (ret = xd3_whole_state_init (merge_stream))) - { - XPR(NT XD3_LIB_ERRMSG (& merge_input, ret)); - goto error; - } - - xd3_swap_whole_state (& merge_stream->whole_target, - & merge_input.whole_target); - ret = 0; - error: - xd3_free_stream (& merge_input); - return ret; -} - -/* This processes each window of the final merge input. This routine - * does not output, it buffers the entire delta into memory. */ -static int -main_merge_func (xd3_stream* stream, main_file *no_write) -{ - int ret; - - if ((ret = xd3_whole_append_window (stream))) - { - return ret; - } - - return 0; -} - - -/* This is called after all windows have been read, as a final step in - * main_input(). This is only called for the final merge step. */ -static int -main_merge_output (xd3_stream *stream, main_file *ofile) -{ - int ret; - usize_t inst_pos = 0; - xoff_t output_pos = 0; - xd3_source recode_source; - usize_t window_num = 0; - int at_least_once = 0; - - /* merge_stream is set if there were arguments. this stream's input - * needs to be applied to the merge_stream source. */ - if ((merge_stream != NULL) && - (ret = xd3_merge_input_output (stream, - & merge_stream->whole_target))) - { - XPR(NT XD3_LIB_ERRMSG (stream, ret)); - return ret; - } - - if (option_use_appheader != 0 && - option_appheader != NULL) - { - xd3_set_appheader (recode_stream, option_appheader, - (usize_t) strlen ((char*) option_appheader)); - } - - /* Enter the ENC_INPUT state and bypass the next_in == NULL test - * and (leftover) input buffering logic. */ - XD3_ASSERT(recode_stream->enc_state == ENC_INIT); - recode_stream->enc_state = ENC_INPUT; - recode_stream->next_in = main_bdata; - recode_stream->flags |= XD3_FLUSH; - - /* This encodes the entire target. */ - while (inst_pos < stream->whole_target.instlen || !at_least_once) - { - xoff_t window_start = output_pos; - int window_srcset = 0; - xoff_t window_srcmin = 0; - xoff_t window_srcmax = 0; - usize_t window_pos = 0; - usize_t window_size; - - /* at_least_once ensures that we encode at least one window, - * which handles the 0-byte case. */ - at_least_once = 1; - - XD3_ASSERT (recode_stream->enc_state == ENC_INPUT); - - if ((ret = xd3_encode_input (recode_stream)) != XD3_WINSTART) - { - XPR(NT "invalid merge state: %s\n", xd3_mainerror (ret)); - return XD3_INVALID; - } - - /* Window sizes must match from the input to the output, so that - * target copies are in-range (and so that checksums carry - * over). */ - XD3_ASSERT (window_num < stream->whole_target.wininfolen); - window_size = stream->whole_target.wininfo[window_num].length; - - /* Output position should also match. */ - if (output_pos != stream->whole_target.wininfo[window_num].offset) - { - XPR(NT "internal merge error: offset mismatch\n"); - return XD3_INVALID; - } - - if (option_use_checksum && - (stream->dec_win_ind & VCD_ADLER32) != 0) - { - recode_stream->flags |= XD3_ADLER32_RECODE; - recode_stream->recode_adler32 = - stream->whole_target.wininfo[window_num].adler32; - } - - window_num++; - - if (main_bsize < window_size) - { - main_buffree (main_bdata); - main_bdata = NULL; - main_bsize = 0; - if ((main_bdata = (uint8_t*) - main_bufalloc (window_size)) == NULL) - { - return ENOMEM; - } - main_bsize = window_size; - } - - /* This encodes a single target window. */ - while (window_pos < window_size && - inst_pos < stream->whole_target.instlen) - { - xd3_winst *inst = &stream->whole_target.inst[inst_pos]; - usize_t take = xd3_min(inst->size, window_size - window_pos); - xoff_t addr; - - switch (inst->type) - { - case XD3_RUN: - if ((ret = xd3_emit_run (recode_stream, window_pos, take, - &stream->whole_target.adds[inst->addr]))) - { - return ret; - } - break; - - case XD3_ADD: - /* Adds are implicit, put them into the input buffer. */ - memcpy (main_bdata + window_pos, - stream->whole_target.adds + inst->addr, take); - break; - - default: /* XD3_COPY + copy mode */ - if (inst->mode != 0) - { - if (window_srcset) { - window_srcmin = xd3_min (window_srcmin, inst->addr); - window_srcmax = xd3_max (window_srcmax, inst->addr + take); - } else { - window_srcset = 1; - window_srcmin = inst->addr; - window_srcmax = inst->addr + take; - } - addr = inst->addr; - } - else - { - XD3_ASSERT (inst->addr >= window_start); - addr = inst->addr - window_start; - } - IF_DEBUG2 (XPR(NTR "[merge copy] winpos %u take %u addr %"Q"u mode %u\n", - window_pos, take, addr, inst->mode)); - if ((ret = xd3_found_match (recode_stream, window_pos, take, - addr, inst->mode != 0))) - { - return ret; - } - break; - } - - window_pos += take; - output_pos += take; - - if (take == inst->size) - { - inst_pos += 1; - } - else - { - /* Modify the instruction for the next pass. */ - if (inst->type != XD3_RUN) - { - inst->addr += take; - } - inst->size -= take; - } - } - - xd3_avail_input (recode_stream, main_bdata, window_pos); - - recode_stream->enc_state = ENC_INSTR; - - if (window_srcset) { - recode_stream->srcwin_decided = 1; - recode_stream->src = &recode_source; - recode_source.srclen = (usize_t)(window_srcmax - window_srcmin); - recode_source.srcbase = window_srcmin; - recode_stream->taroff = recode_source.srclen; - - XD3_ASSERT (recode_source.srclen != 0); - } else { - recode_stream->srcwin_decided = 0; - recode_stream->src = NULL; - recode_stream->taroff = 0; - } - - for (;;) - { - switch ((ret = xd3_encode_input (recode_stream))) - { - case XD3_INPUT: { - goto done_window; - } - case XD3_OUTPUT: { - /* main_file_write below */ - break; - } - case XD3_GOTHEADER: - case XD3_WINSTART: - case XD3_WINFINISH: { - /* ignore */ - continue; - } - case XD3_GETSRCBLK: - case 0: { - return XD3_INTERNAL; - } - default: - return ret; - } - - if ((ret = main_write_output(recode_stream, ofile))) - { - return ret; - } - - xd3_consume_output (recode_stream); - } - done_window: - (void) 0; - } - - return 0; -} -#endif - -/******************************************************************* - Input decompression, output recompression - ******************************************************************/ - -#if EXTERNAL_COMPRESSION -/* This is tricky POSIX-specific code with lots of fork(), pipe(), - * dup(), waitpid(), and exec() business. Most of this code - * originated in PRCS1, which did automatic package-file - * decompression. It works with both XD3_POSIX and XD3_STDIO file - * disciplines. - * - * To automatically detect compressed inputs requires a child process - * to reconstruct the input stream, which was advanced in order to - * detect compression, because it may not be seekable. In other - * words, the main program reads part of the input stream, and if it - * detects a compressed input it then forks a pipe copier process, - * which copies the first-read block out of the main-program's memory, - * then streams the remaining compressed input into the - * input-decompression pipe. - */ - -#include -#include -#include -#include - -/* Remember which pipe FD is which. */ -#define PIPE_READ_FD 0 -#define PIPE_WRITE_FD 1 -#define MAX_SUBPROCS 4 /* max(source + copier + output, - source + copier + input + copier). */ -static pid_t ext_subprocs[MAX_SUBPROCS]; - -/* Like write(), applies to a fd instead of a main_file, for the pipe - * copier subprocess. Does not print an error, to facilitate ignoring - * trailing garbage, see main_pipe_copier(). */ -static int -main_pipe_write (int outfd, uint8_t *exist_buf, usize_t remain) -{ - int ret; - - if ((ret = xd3_posix_io (outfd, exist_buf, remain, - (xd3_posix_func*) &write, NULL))) - { - return ret; - } - - return 0; -} - -/* A simple error-reporting waitpid interface. */ -static int -main_waitpid_check(pid_t pid) -{ - int status; - int ret = 0; - - if (waitpid (pid, & status, 0) < 0) - { - ret = get_errno (); - XPR(NT "external compression [pid %d] wait: %s\n", - pid, xd3_mainerror (ret)); - } - else if (! WIFEXITED (status)) - { - // SIGPIPE will be delivered to the child process whenever it - // writes data after this process closes the pipe, - // happens if xdelta does not require access to the entire - // source file. Considered normal. - if (! WIFSIGNALED (status) || WTERMSIG (status) != SIGPIPE) - { - ret = ECHILD; - XPR(NT "external compression [pid %d] signal %d\n", pid, - WIFSIGNALED (status) ? WTERMSIG (status) : WSTOPSIG (status)); - } - else if (option_verbose) - { - XPR(NT "external compression sigpipe\n"); - } - } - else if (WEXITSTATUS (status) != 0) - { - ret = ECHILD; - if (option_verbose > 1) - { - /* Presumably, the error was printed by the subprocess. */ - XPR(NT "external compression [pid %d] exit %d\n", - pid, WEXITSTATUS (status)); - } - } - - return ret; -} - -/* Wait for any existing child processes to check for abnormal exit. */ -static int -main_external_compression_finish (void) -{ - int i; - int ret; - - for (i = 0; i < num_subprocs; i += 1) - { - if (! ext_subprocs[i]) { continue; } - - if ((ret = main_waitpid_check (ext_subprocs[i]))) - { - return ret; - } - - ext_subprocs[i] = 0; - } - - return 0; -} - -/* Kills any outstanding compression process. */ -static void -main_external_compression_cleanup (void) -{ - int i; - - for (i = 0; i < num_subprocs; i += 1) - { - if (! ext_subprocs[i]) { continue; } - - kill (ext_subprocs[i], SIGTERM); - - ext_subprocs[i] = 0; - } -} - -/* This runs as a forked process of main_input_decompress_setup() to - * copy input to the decompression process. First, the available - * input is copied out of the existing buffer, then the buffer is - * reused to continue reading from the compressed input file. */ -static int -main_pipe_copier (uint8_t *pipe_buf, - usize_t pipe_bufsize, - size_t nread, - main_file *ifile, - int outfd) -{ - int ret; - xoff_t skipped = 0; - - /* Prevent SIGPIPE signals, allow EPIPE return values instead. This - * is safe to comment-out, except that the -F flag will not work - * properly (the parent would need to treat WTERMSIG(status) == - * SIGPIPE). */ - struct sigaction sa; - sa.sa_handler = SIG_IGN; - sigaction (SIGPIPE, &sa, NULL); - - for (;;) - { - /* force_drain will be set when option_force and EPIPE cause us - * to skip data. This is reset each time through the loop, so - * the break condition below works. */ - int force_drain = 0; - if (nread > 0 && (ret = main_pipe_write (outfd, pipe_buf, nread))) - { - if (ret == EPIPE) - { - /* This causes the loop to continue reading until nread - * == 0. */ - skipped += nread; - force_drain = 1; - } - else - { - XPR(NT "pipe write failed: %s\n", xd3_mainerror (ret)); - return ret; - } - } - - if (nread < pipe_bufsize && !force_drain) - { - break; - } - - if ((ret = main_file_read (ifile, pipe_buf, pipe_bufsize, - & nread, "pipe read failed")) < 0) - { - return ret; - } - } - - if (option_verbose && skipped != 0) - { - XPR(NT "skipping %"Q"u bytes in %s\n", - skipped, ifile->filename); - } - return 0; -} - -/* This function is called after we have read some amount of data from - * the input file and detected a compressed input. Here we start a - * decompression subprocess by forking twice. The first process runs - * the decompression command, the second process copies data to the - * input of the first. */ -static int -main_input_decompress_setup (const main_extcomp *decomp, - main_file *ifile, - uint8_t *input_buf, - usize_t input_bufsize, - uint8_t *pipe_buf, - usize_t pipe_bufsize, - usize_t pipe_avail, - size_t *nread) -{ - /* The two pipes: input and output file descriptors. */ - int outpipefd[2], inpipefd[2]; - int input_fd = -1; /* The resulting input_fd (output of decompression). */ - pid_t decomp_id, copier_id; /* The two subprocs. */ - int ret; - - outpipefd[0] = outpipefd[1] = -1; - inpipefd[0] = inpipefd[1] = -1; - - if (pipe (outpipefd) || pipe (inpipefd)) - { - XPR(NT "pipe failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - - if ((decomp_id = fork ()) < 0) - { - XPR(NT "fork failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - - /* The first child runs the decompression process: */ - if (decomp_id == 0) - { - if (option_verbose > 2) - { - XPR(NT "external decompression pid %d\n", getpid ()); - } - - /* Setup pipes: write to the outpipe, read from the inpipe. */ - if (dup2 (outpipefd[PIPE_WRITE_FD], STDOUT_FILENO) < 0 || - dup2 (inpipefd[PIPE_READ_FD], STDIN_FILENO) < 0 || - close (outpipefd[PIPE_READ_FD]) || - close (outpipefd[PIPE_WRITE_FD]) || - close (inpipefd[PIPE_READ_FD]) || - close (inpipefd[PIPE_WRITE_FD]) || - execlp (decomp->decomp_cmdname, decomp->decomp_cmdname, - decomp->decomp_options, - option_force2 ? "-f" : NULL, - NULL)) - { - XPR(NT "child process %s failed to execute: %s\n", - decomp->decomp_cmdname, xd3_mainerror (get_errno ())); - } - - _exit (127); - } - - XD3_ASSERT(num_subprocs < MAX_SUBPROCS); - ext_subprocs[num_subprocs++] = decomp_id; - - if ((copier_id = fork ()) < 0) - { - XPR(NT "fork failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - - /* The second child runs the copier process: */ - if (copier_id == 0) - { - int exitval = 0; - - if (option_verbose > 2) - { - XPR(NT "child pipe-copier pid %d\n", getpid ()); - } - - if (close (inpipefd[PIPE_READ_FD]) || - close (outpipefd[PIPE_READ_FD]) || - close (outpipefd[PIPE_WRITE_FD]) || - main_pipe_copier (pipe_buf, pipe_bufsize, pipe_avail, - ifile, inpipefd[PIPE_WRITE_FD]) || - close (inpipefd[PIPE_WRITE_FD])) - { - XPR(NT "child copier process failed: %s\n", - xd3_mainerror (get_errno ())); - exitval = 1; - } - - _exit (exitval); - } - - XD3_ASSERT(num_subprocs < MAX_SUBPROCS); - ext_subprocs[num_subprocs++] = copier_id; - - /* The parent closes both pipes after duplicating the output of - * compression. */ - input_fd = dup (outpipefd[PIPE_READ_FD]); - - if (input_fd < 0 || - main_file_close (ifile) || - close (outpipefd[PIPE_READ_FD]) || - close (outpipefd[PIPE_WRITE_FD]) || - close (inpipefd[PIPE_READ_FD]) || - close (inpipefd[PIPE_WRITE_FD])) - { - XPR(NT "dup/close failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - -#if XD3_STDIO - /* Note: fdopen() acquires the fd, closes it when finished. */ - if ((ifile->file = fdopen (input_fd, "r")) == NULL) - { - XPR(NT "fdopen failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - -#elif XD3_POSIX - ifile->file = input_fd; -#endif - - ifile->compressor = decomp; - - /* Now the input file is decompressed. */ - return main_file_read (ifile, input_buf, input_bufsize, - nread, "input decompression failed"); - - pipe_cleanup: - close (input_fd); - close (outpipefd[PIPE_READ_FD]); - close (outpipefd[PIPE_WRITE_FD]); - close (inpipefd[PIPE_READ_FD]); - close (inpipefd[PIPE_WRITE_FD]); - return ret; -} - - -/* This routine is called when the first buffer of input data is read - * by the main program (unless input decompression is disabled by - * command-line option). If it recognizes the magic number of a known - * input type it invokes decompression. - * - * Skips decompression if the decompression type or the file type is - * RD_NONEXTERNAL. - * - * Behaves exactly like main_file_read, otherwise. - * - * This function uses a separate buffer to read the first small block - * of input. If a compressed input is detected, the separate buffer - * is passed to the pipe copier. This avoids using the same size - * buffer in both cases. */ -static int -main_secondary_decompress_check (main_file *file, - uint8_t *input_buf, - size_t input_size, - size_t *nread) -{ - int ret; - usize_t i; - usize_t try_read = xd3_min (input_size, XD3_ALLOCSIZE); - size_t check_nread = 0; - uint8_t check_buf[XD3_ALLOCSIZE]; /* TODO: heap allocate */ - const main_extcomp *decompressor = NULL; - - if ((ret = main_file_read (file, check_buf, - try_read, - & check_nread, "input read failed"))) - { - return ret; - } - - if (file->flags & RD_DECOMPSET) - { - /* This allows the application header to override the magic - * number, for whatever reason. */ - decompressor = file->compressor; - } - else - { - for (i = 0; i < SIZEOF_ARRAY (extcomp_types); i += 1) - { - const main_extcomp *decomp = & extcomp_types[i]; - - if (check_nread > decomp->magic_size) - { - /* The following expr checks if we are trying to read a - * VCDIFF input, in which case do not treat it as - * "secondary" decompression. */ - int skip_this_type = (decomp->flags & RD_NONEXTERNAL) && - (file->flags & RD_NONEXTERNAL); - - if (skip_this_type) - { - continue; - } - - if (memcmp (check_buf, decomp->magic, decomp->magic_size) == 0) - { - decompressor = decomp; - break; - } - } - } - } - - if (decompressor != NULL) - { - if (! option_quiet) - { - XPR(NT "externally compressed input: %s %s%s < %s\n", - decompressor->decomp_cmdname, - decompressor->decomp_options, - (option_force2 ? " -f" : ""), - file->filename); - if (file->flags & RD_MAININPUT) - { - XPR(NT - "WARNING: the encoder is automatically decompressing the input file;\n"); - XPR(NT - "WARNING: the decoder will automatically recompress the output file;\n"); - XPR(NT - "WARNING: this may result in different compressed data and checksums\n"); - XPR(NT - "WARNING: despite being identical data; if this is an issue, use -D\n"); - XPR(NT - "WARNING: to avoid decompression and/or use -R to avoid recompression\n"); - XPR(NT - "WARNING: and/or manually decompress the input file; if you know the\n"); - XPR(NT - "WARNING: compression settings that will produce identical output\n"); - XPR(NT - "WARNING: you may set those flags using the environment (e.g., GZIP=-9)\n"); - } - } - - file->size_known = 0; - return main_input_decompress_setup (decompressor, file, - input_buf, input_size, - check_buf, XD3_ALLOCSIZE, - check_nread, nread); - } - - /* Now read the rest of the input block. */ - (*nread) = 0; - - if (check_nread == try_read) - { - ret = main_file_read (file, - input_buf + try_read, - input_size - try_read, - nread, - "input read failed"); - } - - memcpy (input_buf, check_buf, check_nread); - - (*nread) += check_nread; - - return 0; -} - -/* Initiate re-compression of the output stream. This is easier than - * input decompression because we know beforehand that the stream will - * be compressed, whereas the input has already been read when we - * decide it should be decompressed. Thus, it only requires one - * subprocess and one pipe. */ -static int -main_recompress_output (main_file *ofile) -{ - pid_t recomp_id; /* One subproc. */ - int pipefd[2]; /* One pipe. */ - int output_fd = -1; - int ret; - const main_extcomp *recomp = ofile->compressor; - - pipefd[0] = pipefd[1] = -1; - - if (pipe (pipefd)) - { - XPR(NT "pipe failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - - if ((recomp_id = fork ()) < 0) - { - XPR(NT "fork failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - - /* The child runs the recompression process: */ - if (recomp_id == 0) - { - if (option_verbose > 2) - { - XPR(NT "external recompression pid %d\n", getpid ()); - } - - /* Setup pipes: write to the output file, read from the pipe. */ - if (dup2 (XFNO (ofile), STDOUT_FILENO) < 0 || - dup2 (pipefd[PIPE_READ_FD], STDIN_FILENO) < 0 || - close (pipefd[PIPE_READ_FD]) || - close (pipefd[PIPE_WRITE_FD]) || - execlp (recomp->recomp_cmdname, recomp->recomp_cmdname, - recomp->recomp_options, - option_force2 ? "-f" : NULL, - NULL)) - { - XPR(NT "child process %s failed to execute: %s\n", - recomp->recomp_cmdname, xd3_mainerror (get_errno ())); - } - - _exit (127); - } - - XD3_ASSERT(num_subprocs < MAX_SUBPROCS); - ext_subprocs[num_subprocs++] = recomp_id; - - /* The parent closes both pipes after duplicating the output-fd for - * writing to the compression pipe. */ - output_fd = dup (pipefd[PIPE_WRITE_FD]); - - if (output_fd < 0 || - main_file_close (ofile) || - close (pipefd[PIPE_READ_FD]) || - close (pipefd[PIPE_WRITE_FD])) - { - XPR(NT "close failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - -#if XD3_STDIO - /* Note: fdopen() acquires the fd, closes it when finished. */ - if ((ofile->file = fdopen (output_fd, "w")) == NULL) - { - XPR(NT "fdopen failed: %s\n", xd3_mainerror (ret = get_errno ())); - goto pipe_cleanup; - } - -#elif XD3_POSIX - ofile->file = output_fd; -#endif - - /* Now the output file will be compressed. */ - return 0; - - pipe_cleanup: - close (output_fd); - close (pipefd[PIPE_READ_FD]); - close (pipefd[PIPE_WRITE_FD]); - return ret; -} -#endif /* EXTERNAL_COMPRESSION */ - -/* Identify the compressor that was used based on its ident string, - * which is passed in the application header. */ -static const main_extcomp* -main_ident_compressor (const char *ident) -{ - usize_t i; - - for (i = 0; i < SIZEOF_ARRAY (extcomp_types); i += 1) - { - if (strcmp (extcomp_types[i].ident, ident) == 0) - { - return & extcomp_types[i]; - } - } - - return NULL; -} - -/* Return the main_extcomp record to use for this identifier, if possible. */ -static const main_extcomp* -main_get_compressor (const char *ident) -{ - const main_extcomp *ext = main_ident_compressor (ident); - - if (ext == NULL) - { - if (! option_quiet) - { - XPR(NT "warning: cannot recompress output: " - "unrecognized external compression ID: %s\n", ident); - } - return NULL; - } - else if (! EXTERNAL_COMPRESSION) - { - if (! option_quiet) - { - XPR(NT "warning: external support not compiled: " - "original input was compressed: %s\n", ext->recomp_cmdname); - } - return NULL; - } - else - { - return ext; - } -} - -/********************************************************************* - APPLICATION HEADER - *******************************************************************/ - -#if XD3_ENCODER -static const char* -main_apphead_string (const char* x) -{ - const char *y; - - if (x == NULL) { return ""; } - - if (strcmp (x, "/dev/stdin") == 0 || - strcmp (x, "/dev/stdout") == 0 || - strcmp (x, "/dev/stderr") == 0) { return "-"; } - - // TODO: this is not portable - return (y = strrchr (x, '/')) == NULL ? x : y + 1; -} - -static int -main_set_appheader (xd3_stream *stream, main_file *input, main_file *sfile) -{ - /* The user may disable the application header. Once the appheader - * is set, this disables setting it again. */ - if (appheader_used || ! option_use_appheader) { return 0; } - - /* The user may specify the application header, otherwise format the - default header. */ - if (option_appheader) - { - appheader_used = option_appheader; - } - else - { - const char *iname; - const char *icomp; - const char *sname; - const char *scomp; - usize_t len; - - iname = main_apphead_string (input->filename); - icomp = (input->compressor == NULL) ? "" : input->compressor->ident; - len = (usize_t) strlen (iname) + (usize_t) strlen (icomp) + 2; - - if (sfile->filename != NULL) - { - sname = main_apphead_string (sfile->filename); - scomp = (sfile->compressor == NULL) ? "" : sfile->compressor->ident; - len += (usize_t) strlen (sname) + (usize_t) strlen (scomp) + 2; - } - else - { - sname = scomp = ""; - } - - if ((appheader_used = (uint8_t*) main_malloc (len)) == NULL) - { - return ENOMEM; - } - - if (sfile->filename == NULL) - { - snprintf_func ((char*)appheader_used, len, "%s/%s", iname, icomp); - } - else - { - snprintf_func ((char*)appheader_used, len, "%s/%s/%s/%s", - iname, icomp, sname, scomp); - } - } - - xd3_set_appheader (stream, appheader_used, - (usize_t) strlen ((char*)appheader_used)); - - return 0; -} -#endif - -static void -main_get_appheader_params (main_file *file, char **parsed, - int output, const char *type, - main_file *other) -{ - /* Set the filename if it was not specified. If output, option_stdout (-c) - * overrides. */ - if (file->filename == NULL && - ! (output && option_stdout) && - strcmp (parsed[0], "-") != 0) - { - file->filename = parsed[0]; - - if (other->filename != NULL) { - /* Take directory from the other file, if it has one. */ - /* TODO: This results in nonsense names like /dev/foo.tar.gz - * and probably the filename-default logic interferes with - * multi-file operation and the standard file extension? - * Possibly the name header is bad, should be off by default. - * Possibly we just want to remember external/compression - * settings. */ - const char *last_slash = strrchr(other->filename, '/'); - - if (last_slash != NULL) { - usize_t dlen = (usize_t) (last_slash - other->filename); - - XD3_ASSERT(file->filename_copy == NULL); - file->filename_copy = - (char*) main_malloc(dlen + 2 + (usize_t) strlen(file->filename)); - - strncpy(file->filename_copy, other->filename, dlen); - file->filename_copy[dlen] = '/'; - strcpy(file->filename_copy + dlen + 1, parsed[0]); - - file->filename = file->filename_copy; - } - } - - if (! option_quiet) - { - XPR(NT "using default %s filename: %s\n", type, file->filename); - } - } - - /* Set the compressor, initiate de/recompression later. */ - if (file->compressor == NULL && *parsed[1] != 0) - { - file->flags |= RD_DECOMPSET; - file->compressor = main_get_compressor (parsed[1]); - } -} - -static void -main_get_appheader (xd3_stream *stream, main_file *ifile, - main_file *output, main_file *sfile) -{ - uint8_t *apphead; - usize_t appheadsz; - int ret; - - /* The user may disable the application header. Once the appheader - * is set, this disables setting it again. */ - if (! option_use_appheader) { return; } - - ret = xd3_get_appheader (stream, & apphead, & appheadsz); - - /* Ignore failure, it only means we haven't received a header yet. */ - if (ret != 0) { return; } - - if (appheadsz > 0) - { - char *start = (char*)apphead; - char *slash; - int place = 0; - const int kMaxArgs = 4; - char *parsed[4]; - - memset (parsed, 0, sizeof (parsed)); - - while ((slash = strchr (start, '/')) != NULL && place < (kMaxArgs-1)) - { - *slash = 0; - parsed[place++] = start; - start = slash + 1; - } - - parsed[place++] = start; - - /* First take the output parameters. */ - if (place == 2 || place == 4) - { - main_get_appheader_params (output, parsed, 1, "output", ifile); - } - - /* Then take the source parameters. */ - if (place == 4) - { - main_get_appheader_params (sfile, parsed+2, 0, "source", ifile); - } - } - - option_use_appheader = 0; - return; -} - -/********************************************************************* - Main I/O routines - **********************************************************************/ - -/* This function acts like the above except it may also try to - * recognize a compressed input (source or target) when the first - * buffer of data is read. The EXTERNAL_COMPRESSION code is called to - * search for magic numbers. */ -static int -main_read_primary_input (main_file *file, - uint8_t *buf, - size_t size, - size_t *nread) -{ -#if EXTERNAL_COMPRESSION - if (option_decompress_inputs && file->flags & RD_FIRST) - { - file->flags &= ~RD_FIRST; - return main_secondary_decompress_check (file, buf, size, nread); - } -#endif - - return main_file_read (file, buf, size, nread, "input read failed"); -} - -/* Open the main output file, sets a default file name, initiate - * recompression. This function is expected to fprint any error - * messages. */ -static int -main_open_output (xd3_stream *stream, main_file *ofile) -{ - int ret; - - if (option_no_output) - { - return 0; - } - - if (ofile->filename == NULL) - { - XSTDOUT_XF (ofile); - - if (option_verbose > 1) - { - XPR(NT "using standard output: %s\n", ofile->filename); - } - } - else - { - /* Stat the file to check for overwrite. */ - if (option_force == 0 && main_file_exists (ofile)) - { - if (!option_quiet) - { - XPR(NT "to overwrite output file specify -f: %s\n", - ofile->filename); - } - return EEXIST; - } - - if ((ret = main_file_open (ofile, ofile->filename, XO_WRITE))) - { - return ret; - } - - if (option_verbose > 1) { XPR(NT "output %s\n", ofile->filename); } - } - -#if EXTERNAL_COMPRESSION - /* Do output recompression. */ - if (ofile->compressor != NULL && option_recompress_outputs == 1) - { - if (! option_quiet) - { - XPR(NT "externally compressed output: %s %s%s > %s\n", - ofile->compressor->recomp_cmdname, - ofile->compressor->recomp_options, - (option_force2 ? " -f" : ""), - ofile->filename); - } - - if ((ret = main_recompress_output (ofile))) - { - return ret; - } - } -#endif - - return 0; -} - -static usize_t -main_get_winsize (main_file *ifile) { - xoff_t file_size = 0; - usize_t size = option_winsize; - static shortbuf iszbuf; - - if (main_file_stat (ifile, &file_size) == 0) - { - size = (usize_t) xd3_min (file_size, (xoff_t) size); - } - - size = xd3_max (size, XD3_ALLOCSIZE); - - if (option_verbose > 1) - { - XPR(NT "input %s window size %s\n", - ifile->filename, - main_format_bcnt (size, &iszbuf)); - } - - return size; -} - -/********************************************************************* - Main routines - ********************************************************************/ - -/* This is a generic input function. It calls the xd3_encode_input or - * xd3_decode_input functions and makes calls to the various input - * handling routines above, which coordinate external decompression. - */ -static int -main_input (xd3_cmd cmd, - main_file *ifile, - main_file *ofile, - main_file *sfile) -{ - int ret; - xd3_stream stream; - size_t nread = 0; - usize_t winsize; - int stream_flags = 0; - xd3_config config; - xd3_source source; - xoff_t last_total_in = 0; - xoff_t last_total_out = 0; - long start_time; - int stdout_only = 0; - int (*input_func) (xd3_stream*); - int (*output_func) (xd3_stream*, main_file *); - - memset (& stream, 0, sizeof (stream)); - memset (& source, 0, sizeof (source)); - memset (& config, 0, sizeof (config)); - - config.alloc = main_alloc; - config.freef = main_free1; - - config.iopt_size = option_iopt_size; - config.sprevsz = option_sprevsz; - - do_src_fifo = 0; - - start_time = get_millisecs_now (); - - if (option_use_checksum) { stream_flags |= XD3_ADLER32; } - - /* main_input setup. */ - switch ((int) cmd) - { -#if VCDIFF_TOOLS - if (1) { case CMD_PRINTHDR: stream_flags |= XD3_JUST_HDR; } - else if (1) { case CMD_PRINTHDRS: stream_flags |= XD3_SKIP_WINDOW; } - else { case CMD_PRINTDELTA: stream_flags |= XD3_SKIP_EMIT; } - ifile->flags |= RD_NONEXTERNAL; - input_func = xd3_decode_input; - output_func = main_print_func; - stream_flags |= XD3_ADLER32_NOVER; - stdout_only = 1; - break; - - case CMD_RECODE: - case CMD_MERGE: - case CMD_MERGE_ARG: - /* No source will be read */ - stream_flags |= XD3_ADLER32_NOVER | XD3_SKIP_EMIT; - ifile->flags |= RD_NONEXTERNAL; - input_func = xd3_decode_input; - - if ((ret = main_init_recode_stream ())) - { - return EXIT_FAILURE; - } - - if (cmd == CMD_RECODE) { output_func = main_recode_func; } - else { output_func = main_merge_func; } - break; -#endif /* VCDIFF_TOOLS */ - -#if XD3_ENCODER - case CMD_ENCODE: - do_src_fifo = 1; - input_func = xd3_encode_input; - output_func = main_write_output; - - if (option_no_compress) { stream_flags |= XD3_NOCOMPRESS; } - if (option_smatch_config) - { - const char *s = option_smatch_config; - char *e; - int values[XD3_SOFTCFG_VARCNT]; - int got; - - config.smatch_cfg = XD3_SMATCH_SOFT; - - for (got = 0; got < XD3_SOFTCFG_VARCNT; got += 1, s = e + 1) - { - values[got] = strtol (s, &e, 10); - - if ((values[got] < 0) || - (e == s) || - (got < XD3_SOFTCFG_VARCNT-1 && *e == 0) || - (got == XD3_SOFTCFG_VARCNT-1 && *e != 0)) - { - XPR(NT "invalid string match specifier (-C) %d: %s\n", - got, s); - return EXIT_FAILURE; - } - } - - config.smatcher_soft.large_look = values[0]; - config.smatcher_soft.large_step = values[1]; - config.smatcher_soft.small_look = values[2]; - config.smatcher_soft.small_chain = values[3]; - config.smatcher_soft.small_lchain = values[4]; - config.smatcher_soft.max_lazy = values[5]; - config.smatcher_soft.long_enough = values[6]; - } - else - { - if (option_verbose > 2) - { - XPR(NT "compression level: %d\n", option_level); - } - if (option_level == 0) - { - stream_flags |= XD3_NOCOMPRESS; - config.smatch_cfg = XD3_SMATCH_FASTEST; - } - else if (option_level == 1) - { config.smatch_cfg = XD3_SMATCH_FASTEST; } - else if (option_level == 2) - { config.smatch_cfg = XD3_SMATCH_FASTER; } - else if (option_level <= 5) - { config.smatch_cfg = XD3_SMATCH_FAST; } - else if (option_level == 6) - { config.smatch_cfg = XD3_SMATCH_DEFAULT; } - else - { config.smatch_cfg = XD3_SMATCH_SLOW; } - } - break; -#endif - case CMD_DECODE: - if (option_use_checksum == 0) { stream_flags |= XD3_ADLER32_NOVER; } - ifile->flags |= RD_NONEXTERNAL; - input_func = xd3_decode_input; - output_func = main_write_output; - break; - default: - XPR(NT "internal error\n"); - return EXIT_FAILURE; - } - - main_bsize = winsize = main_get_winsize (ifile); - - if ((main_bdata = (uint8_t*) main_bufalloc (winsize)) == NULL) - { - return EXIT_FAILURE; - } - - config.winsize = winsize; - config.getblk = main_getblk_func; - config.flags = stream_flags; - - if ((ret = main_set_secondary_flags (&config)) || - (ret = xd3_config_stream (& stream, & config))) - { - XPR(NT XD3_LIB_ERRMSG (& stream, ret)); - return EXIT_FAILURE; - } - -#if VCDIFF_TOOLS - if ((cmd == CMD_MERGE || cmd == CMD_MERGE_ARG) && - (ret = xd3_whole_state_init (& stream))) - { - XPR(NT XD3_LIB_ERRMSG (& stream, ret)); - return EXIT_FAILURE; - } -#endif - - if (cmd != CMD_DECODE) - { - /* When not decoding, set source now. The decoder delays this - * step until XD3_GOTHEADER. */ - if (sfile && sfile->filename != NULL) - { - if ((ret = main_set_source (& stream, cmd, sfile, & source))) - { - return EXIT_FAILURE; - } - - XD3_ASSERT(stream.src != NULL); - } - } - - if (cmd == CMD_PRINTHDR || - cmd == CMD_PRINTHDRS || - cmd == CMD_PRINTDELTA || - cmd == CMD_RECODE) - { - if (sfile->filename == NULL) - { - allow_fake_source = 1; - sfile->filename = ""; - main_set_source (& stream, cmd, sfile, & source); - } - } - - /* This times each window. */ - get_millisecs_since (); - - /* Main input loop. */ - do - { - xoff_t input_offset; - xoff_t input_remain; - usize_t try_read; - - input_offset = ifile->nread; - - input_remain = XOFF_T_MAX - input_offset; - - try_read = (usize_t) xd3_min ((xoff_t) config.winsize, input_remain); - - if ((ret = main_read_primary_input (ifile, main_bdata, - try_read, & nread))) - { - return EXIT_FAILURE; - } - - /* If we've reached EOF tell the stream to flush. */ - if (nread < try_read) - { - stream.flags |= XD3_FLUSH; - } - -#if XD3_ENCODER - /* After the first main_read_primary_input completes, we know - * all the information needed to encode the application - * header. */ - if (cmd == CMD_ENCODE && - (ret = main_set_appheader (& stream, ifile, sfile))) - { - return EXIT_FAILURE; - } -#endif - xd3_avail_input (& stream, main_bdata, nread); - - /* If we read zero bytes after encoding at least one window... */ - if (nread == 0 && stream.current_window > 0) { - break; - } - - again: - ret = input_func (& stream); - - switch (ret) - { - case XD3_INPUT: - continue; - - case XD3_GOTHEADER: - { - XD3_ASSERT (stream.current_window == 0); - - /* Need to process the appheader as soon as possible. It may - * contain a suggested default filename/decompression routine for - * the ofile, and it may contain default/decompression routine for - * the sources. */ - if (cmd == CMD_DECODE) - { - /* May need to set the sfile->filename if none was given. */ - main_get_appheader (& stream, ifile, ofile, sfile); - - /* Now open the source file. */ - if ((sfile->filename != NULL) && - (ret = main_set_source (& stream, cmd, sfile, & source))) - { - return EXIT_FAILURE; - } - } - } - /* FALLTHROUGH */ - case XD3_WINSTART: - { - /* e.g., set or unset XD3_SKIP_WINDOW. */ - goto again; - } - - case XD3_OUTPUT: - { - /* Defer opening the output file until the stream produces its - * first output for both encoder and decoder, this way we - * delay long enough for the decoder to receive the - * application header. (Or longer if there are skipped - * windows, but I can't think of any reason not to delay - * open.) */ - if (ofile != NULL && - ! main_file_isopen (ofile) && - (ret = main_open_output (& stream, ofile)) != 0) - { - return EXIT_FAILURE; - } - - if ((ret = output_func (& stream, ofile)) && - (ret != PRINTHDR_SPECIAL)) - { - return EXIT_FAILURE; - } - - if (ret == PRINTHDR_SPECIAL) - { - xd3_abort_stream (& stream); - ret = EXIT_SUCCESS; - goto done; - } - - ret = 0; - - xd3_consume_output (& stream); - goto again; - } - - case XD3_WINFINISH: - { - if (IS_ENCODE (cmd) || cmd == CMD_DECODE || cmd == CMD_RECODE) - { - if (! option_quiet && IS_ENCODE (cmd) && - main_file_isopen (sfile)) - { - /* Warn when no source copies are found */ - if (option_verbose && ! xd3_encoder_used_source (& stream)) - { - XPR(NT "warning: input window %"Q"u..%"Q"u has " - "no source copies\n", - stream.current_window * winsize, - (stream.current_window+1) * winsize); - XD3_ASSERT (stream.src != NULL); - } - - /* Limited i-buffer size affects source copies - * when the sourcewin is decided early. */ - if (option_verbose > 1 && - stream.srcwin_decided_early && - stream.i_slots_used > stream.iopt_size) - { - XPR(NT "warning: input position %"Q"u overflowed " - "instruction buffer, needed %u (vs. %u), " - "consider changing -I\n", - stream.current_window * winsize, - stream.i_slots_used, stream.iopt_size); - } - } - - if (option_verbose) - { - shortbuf rrateavg, wrateavg, tm; - shortbuf rdb, wdb; - shortbuf trdb, twdb; - shortbuf srcpos; - long millis = get_millisecs_since (); - usize_t this_read = (usize_t)(stream.total_in - - last_total_in); - usize_t this_write = (usize_t)(stream.total_out - - last_total_out); - last_total_in = stream.total_in; - last_total_out = stream.total_out; - - if (option_verbose > 1) - { - XPR(NT "%"Q"u: in %s (%s): out %s (%s): " - "total in %s: out %s: %s: srcpos %s\n", - stream.current_window, - main_format_bcnt (this_read, &rdb), - main_format_rate (this_read, millis, &rrateavg), - main_format_bcnt (this_write, &wdb), - main_format_rate (this_write, millis, &wrateavg), - main_format_bcnt (stream.total_in, &trdb), - main_format_bcnt (stream.total_out, &twdb), - main_format_millis (millis, &tm), - main_format_bcnt (stream.srcwin_cksum_pos, &srcpos)); - } - else - { - XPR(NT "%"Q"u: in %s: out %s: total in %s: " - "out %s: %s\n", - stream.current_window, - main_format_bcnt (this_read, &rdb), - main_format_bcnt (this_write, &wdb), - main_format_bcnt (stream.total_in, &trdb), - main_format_bcnt (stream.total_out, &twdb), - main_format_millis (millis, &tm)); - } - } - } - goto again; - } - - default: - /* input_func() error */ - XPR(NT XD3_LIB_ERRMSG (& stream, ret)); - if (! option_quiet && ret == XD3_INVALID_INPUT && - sfile != NULL && sfile->filename != NULL) - { - XPR(NT "normally this indicates that the source file is incorrect\n"); - XPR(NT "please verify the source file with sha1sum or equivalent\n"); - } - return EXIT_FAILURE; - } - } - while (nread == config.winsize); -done: - /* Close the inputs. (ifile must be open, sfile may be open) */ - main_file_close (ifile); - if (sfile != NULL) - { - main_file_close (sfile); - } - -#if VCDIFF_TOOLS - if (cmd == CMD_MERGE && - (ret = main_merge_output (& stream, ofile))) - { - return EXIT_FAILURE; - } - - if (cmd == CMD_MERGE_ARG) - { - xd3_swap_whole_state (& stream.whole_target, - & recode_stream->whole_target); - } -#endif /* VCDIFF_TOOLS */ - - /* If output file is not open yet because of delayed-open, it means - * we never encountered a window in the delta, but it could have had - * a VCDIFF header? TODO: solve this elsewhere. For now, it prints - * "nothing to output" below, but the check doesn't happen in case - * of option_no_output. */ - if (! option_no_output && ofile != NULL) - { - if (!stdout_only && ! main_file_isopen (ofile)) - { - XPR(NT "nothing to output: %s\n", ifile->filename); - return EXIT_FAILURE; - } - - /* Have to close the output before calling - * main_external_compression_finish, or else it hangs. */ - if (main_file_close (ofile) != 0) - { - return EXIT_FAILURE; - } - } - -#if EXTERNAL_COMPRESSION - if ((ret = main_external_compression_finish ())) - { - XPR(NT "external compression commands failed\n"); - return EXIT_FAILURE; - } -#endif - - if ((ret = xd3_close_stream (& stream))) - { - XPR(NT XD3_LIB_ERRMSG (& stream, ret)); - return EXIT_FAILURE; - } - -#if XD3_ENCODER - if (option_verbose > 1 && cmd == CMD_ENCODE) - { - XPR(NT "scanner configuration: %s\n", stream.smatcher.name); - XPR(NT "target hash table size: %u\n", stream.small_hash.size); - if (sfile != NULL && sfile->filename != NULL) - { - XPR(NT "source hash table size: %u\n", stream.large_hash.size); - } - } - - if (option_verbose > 2 && cmd == CMD_ENCODE) - { - XPR(NT "source copies: %"Q"u (%"Q"u bytes)\n", - stream.n_scpy, stream.l_scpy); - XPR(NT "target copies: %"Q"u (%"Q"u bytes)\n", - stream.n_tcpy, stream.l_tcpy); - XPR(NT "adds: %"Q"u (%"Q"u bytes)\n", stream.n_add, stream.l_add); - XPR(NT "runs: %"Q"u (%"Q"u bytes)\n", stream.n_run, stream.l_run); - } -#endif - - xd3_free_stream (& stream); - - if (option_verbose) - { - shortbuf tm; - long end_time = get_millisecs_now (); - xoff_t nwrite = ofile != NULL ? ofile->nwrite : 0; - - XPR(NT "finished in %s; input %"Q"u output %"Q"u bytes (%0.2f%%)\n", - main_format_millis (end_time - start_time, &tm), - ifile->nread, nwrite, 100.0 * nwrite / ifile->nread); - } - - return EXIT_SUCCESS; -} - -/* free memory before exit, reset single-use variables. */ -static void -main_cleanup (void) -{ - if (appheader_used != NULL && - appheader_used != option_appheader) - { - main_free (appheader_used); - appheader_used = NULL; - } - - main_buffree (main_bdata); - main_bdata = NULL; - main_bsize = 0; - - main_lru_cleanup(); - - if (recode_stream != NULL) - { - xd3_free_stream (recode_stream); - main_free (recode_stream); - recode_stream = NULL; - } - - if (merge_stream != NULL) - { - xd3_free_stream (merge_stream); - main_free (merge_stream); - merge_stream = NULL; - } - - XD3_ASSERT (main_mallocs == 0); -} - -static void -setup_environment (int argc, - char **argv, - int *argc_out, - char ***argv_out, - char ***argv_free, - char **env_free) -{ - int n, i, i0; - char *p, *v = getenv("XDELTA"); - if (v == NULL) { - (*argc_out) = argc; - (*argv_out) = argv; - (*argv_free) = NULL; - (*env_free) = NULL; - return; - } - - (*env_free) = (char*) main_malloc((usize_t) strlen(v) + 1); - strcpy(*env_free, v); - - /* Space needed for extra args, at least # of spaces */ - n = argc + 1; - for (p = *env_free; *p != 0; ) { - if (*p++ == ' ') { - n++; - } - } - - (*argv_free) = (char**) main_malloc(sizeof(char*) * (n + 1)); - (*argv_out) = (*argv_free); - (*argv_out)[0] = argv[0]; - (*argv_out)[n] = NULL; - - i = 1; - for (p = *env_free; *p != 0; ) { - (*argv_out)[i++] = p; - while (*p != ' ' && *p != 0) { - p++; - } - while (*p == ' ') { - *p++ = 0; - } - } - - for (i0 = 1; i0 < argc; i0++) { - (*argv_out)[i++] = argv[i0]; - } - - /* Counting spaces is an upper bound, argv stays NULL terminated. */ - (*argc_out) = i; - while (i <= n) { - (*argv_out)[i++] = NULL; - } -} - -#if PYTHON_MODULE || SWIG_MODULE || NOT_MAIN -int xd3_main_cmdline (int argc, char **argv) -#else -int main (int argc, char **argv) -#endif -{ - static const char *flags = - "0123456789cdefhnqvDFJNORVs:m:B:C:E:I:L:O:M:P:W:A::S::"; - xd3_cmd cmd; - main_file ifile; - main_file ofile; - main_file sfile; - main_merge_list merge_order; - main_merge *merge; - int my_optind; - const char *my_optarg; - const char *my_optstr; - const char *sfilename; - int env_argc; - char **env_argv; - char **free_argv; /* malloc() in setup_environment() */ - char *free_value; /* malloc() in setup_environment() */ - int ret; - -#ifdef _WIN32 - GetStartupInfo(&winStartupInfo); - setvbuf(stderr, NULL, _IONBF, 0); /* Do not buffer stderr */ -#endif - - main_file_init (& ifile); - main_file_init (& ofile); - main_file_init (& sfile); - main_merge_list_init (& merge_order); - - reset_defaults(); - - free_argv = NULL; - free_value = NULL; - setup_environment(argc, argv, &env_argc, &env_argv, - &free_argv, &free_value); - cmd = CMD_NONE; - sfilename = NULL; - my_optind = 1; - argv = env_argv; - argc = env_argc; - program_name = env_argv[0]; - - takearg: - my_optarg = NULL; - my_optstr = argv[my_optind]; - - /* This doesn't use getopt() because it makes trouble for -P & python which - * reenter main() and thus care about freeing all memory. I never had much - * trust for getopt anyway, it's too opaque. This implements a fairly - * standard non-long-option getopt with support for named operations (e.g., - * "xdelta3 [encode|decode|printhdr...] < in > out"). */ - if (my_optstr) - { - if (*my_optstr == '-') { my_optstr += 1; } - else if (cmd == CMD_NONE) { goto nonflag; } - else { my_optstr = NULL; } - } - while (my_optstr) - { - const char *s; - my_optarg = NULL; - if ((ret = *my_optstr++) == 0) { my_optind += 1; goto takearg; } - - /* Option handling: first check for one ':' following the option in - * flags, then check for two. The syntax allows: - * - * 1. -Afoo defines optarg="foo" - * 2. -A foo defines optarg="foo" - * 3. -A "" defines optarg="" (allows empty-string) - * 4. -A [EOA or -moreargs] error (mandatory case) - * 5. -A [EOA -moreargs] defines optarg=NULL (optional case) - * 6. -A=foo defines optarg="foo" - * 7. -A= defines optarg="" (mandatory case) - * 8. -A= defines optarg=NULL (optional case) - * - * See tests in test_command_line_arguments(). - */ - s = strchr (flags, ret); - if (s && s[1] && s[1] == ':') - { - int option = s[2] && s[2] == ':'; - - /* Case 1, set optarg to the remaining characters. */ - my_optarg = my_optstr; - my_optstr = ""; - - /* Case 2-5 */ - if (*my_optarg == 0) - { - /* Condition 4-5 */ - int have_arg = (my_optind < (argc - 1) && - *argv[my_optind+1] != '-'); - - if (! have_arg) - { - if (! option) - { - /* Case 4 */ - XPR(NT "-%c: requires an argument\n", ret); - ret = EXIT_FAILURE; - goto cleanup; - } - /* Case 5. */ - my_optarg = NULL; - } - else - { - /* Case 2-3. */ - my_optarg = argv[++my_optind]; - } - } - /* Case 6-8. */ - else if (*my_optarg == '=') - { - /* Remove the = in all cases. */ - my_optarg += 1; - - if (option && *my_optarg == 0) - { - /* Case 8. */ - my_optarg = NULL; - } - } - } - - switch (ret) - { - /* case: if no '-' was found, maybe check for a command name. */ - nonflag: - if (strcmp (my_optstr, "decode") == 0) { cmd = CMD_DECODE; } - else if (strcmp (my_optstr, "encode") == 0) - { -#if XD3_ENCODER - cmd = CMD_ENCODE; -#else - XPR(NT "encoder support not compiled\n"); - return EXIT_FAILURE; -#endif - } - else if (strcmp (my_optstr, "config") == 0) { cmd = CMD_CONFIG; } -#if REGRESSION_TEST - else if (strcmp (my_optstr, "test") == 0) { cmd = CMD_TEST; } -#endif -#if VCDIFF_TOOLS - else if (strcmp (my_optstr, "printhdr") == 0) { cmd = CMD_PRINTHDR; } - else if (strcmp (my_optstr, "printhdrs") == 0) - { cmd = CMD_PRINTHDRS; } - else if (strcmp (my_optstr, "printdelta") == 0) - { cmd = CMD_PRINTDELTA; } - else if (strcmp (my_optstr, "recode") == 0) { cmd = CMD_RECODE; } - else if (strcmp (my_optstr, "merge") == 0) { cmd = CMD_MERGE; } -#endif - - /* If no option was found and still no command, let the default - * command be encode. The remaining args are treated as - * filenames. */ - if (cmd == CMD_NONE) - { - cmd = CMD_DEFAULT; - my_optstr = NULL; - break; - } - else - { - /* But if we find a command name, continue the getopt loop. */ - my_optind += 1; - goto takearg; - } - - /* gzip-like options */ - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - option_level = ret - '0'; - break; - case 'f': option_force = 1; break; - case 'F': -#if EXTERNAL_COMPRESSION - option_force2 = 1; -#else - XPR(NT "warning: -F option ignored, " - "external compression support was not compiled\n"); - break; -#endif - case 'v': option_verbose += 1; option_quiet = 0; break; - case 'q': option_quiet = 1; option_verbose = 0; break; - case 'c': option_stdout = 1; break; - case 'd': - if (cmd == CMD_NONE) { cmd = CMD_DECODE; } - else { ret = main_help (); goto exit; } - break; - case 'e': -#if XD3_ENCODER - if (cmd == CMD_NONE) { cmd = CMD_ENCODE; } - else { ret = main_help (); goto exit; } - break; -#else - XPR(NT "encoder support not compiled\n"); - return EXIT_FAILURE; -#endif - - case 'n': option_use_checksum = 0; break; - case 'N': option_no_compress = 1; break; - case 'C': option_smatch_config = my_optarg; break; - case 'J': option_no_output = 1; break; - case 'S': if (my_optarg == NULL) - { - option_use_secondary = 0; - option_secondary = NULL; - } - else - { - option_use_secondary = 1; - option_secondary = my_optarg; - } - break; - case 'A': if (my_optarg == NULL) { option_use_appheader = 0; } - else { option_appheader = (uint8_t*) my_optarg; } break; - case 'B': { - xoff_t bsize; - if ((ret = main_atoux (my_optarg, & bsize, - XD3_MINSRCWINSZ, XD3_MAXSRCWINSZ, 'B'))) - { - goto exit; - } - option_srcwinsz = bsize; - break; - } - case 'I': - if ((ret = main_atou (my_optarg, & option_iopt_size, 0, - 0, 'I'))) - { - goto exit; - } - break; - case 'P': - if ((ret = main_atou (my_optarg, & option_sprevsz, 0, - 0, 'P'))) - { - goto exit; - } - break; - case 'W': - if ((ret = main_atou (my_optarg, & option_winsize, XD3_ALLOCSIZE, - XD3_HARDMAXWINSIZE, 'W'))) - { - goto exit; - } - break; - case 'D': -#if EXTERNAL_COMPRESSION == 0 - if (option_verbose > 0) - { - XPR(NT "warning: -D option ignored, " - "external compression support was not compiled\n"); - } -#else - option_decompress_inputs = 0; -#endif - break; - case 'R': -#if EXTERNAL_COMPRESSION == 0 - if (option_verbose > 0) - { - XPR(NT "warning: -R option ignored, " - "external compression support was not compiled\n"); - } -#else - option_recompress_outputs = 0; -#endif - break; - case 's': - if (sfilename != NULL) - { - XPR(NT "specify only one source file\n"); - goto cleanup; - } - - sfilename = my_optarg; - break; - case 'm': - if ((merge = (main_merge*) - main_malloc (sizeof (main_merge))) == NULL) - { - goto cleanup; - } - main_merge_list_push_back (& merge_order, merge); - merge->filename = my_optarg; - break; - case 'V': - ret = main_version (); goto exit; - default: - ret = main_help (); goto exit; - } - } - - option_source_filename = sfilename; - - /* In case there were no arguments, set the default command. */ - if (cmd == CMD_NONE) { cmd = CMD_DEFAULT; } - - argc -= my_optind; - argv += my_optind; - - /* There may be up to two more arguments. */ - if (argc > 2) - { - XPR(NT "too many filenames: %s ...\n", argv[2]); - goto cleanup; - } - - ifile.flags = RD_FIRST | RD_MAININPUT; - sfile.flags = RD_FIRST; - sfile.filename = option_source_filename; - - /* The infile takes the next argument, if there is one. But if not, infile - * is set to stdin. */ - if (argc > 0) - { - ifile.filename = argv[0]; - - if ((ret = main_file_open (& ifile, ifile.filename, XO_READ))) - { - goto cleanup; - } - } - else - { - XSTDIN_XF (& ifile); - } - - /* The ofile takes the following argument, if there is one. But if not, it - * is left NULL until the application header is processed. It will be set - * in main_open_output. */ - if (argc > 1) - { - /* Check for conflicting arguments. */ - if (option_stdout && ! option_quiet) - { - XPR(NT "warning: -c option overrides output filename: %s\n", - argv[1]); - } - - if (! option_stdout) { ofile.filename = argv[1]; } - } - -#if VCDIFF_TOOLS - if (cmd == CMD_MERGE && - (ret = main_merge_arguments (&merge_order))) - { - goto cleanup; - } -#endif /* VCDIFF_TOOLS */ - - switch (cmd) - { - case CMD_PRINTHDR: - case CMD_PRINTHDRS: - case CMD_PRINTDELTA: -#if XD3_ENCODER - case CMD_ENCODE: - case CMD_RECODE: - case CMD_MERGE: -#endif - case CMD_DECODE: - ret = main_input (cmd, & ifile, & ofile, & sfile); - break; - -#if REGRESSION_TEST - case CMD_TEST: - main_config (); - ret = xd3_selftest (); - break; -#endif - - case CMD_CONFIG: - ret = main_config (); - break; - - default: - ret = main_help (); - break; - } - - if (0) - { - cleanup: - ret = EXIT_FAILURE; - exit: - (void)0; - } - -#if EXTERNAL_COMPRESSION - main_external_compression_cleanup (); -#endif - - main_file_cleanup (& ifile); - main_file_cleanup (& ofile); - main_file_cleanup (& sfile); - - while (! main_merge_list_empty (& merge_order)) - { - merge = main_merge_list_pop_front (& merge_order); - main_free (merge); - } - - main_free (free_argv); - main_free (free_value); - - main_cleanup (); - - fflush (stdout); - fflush (stderr); - return ret; -} - -static int -main_help (void) -{ - main_version(); - - /* Note: update wiki when command-line features change */ - XPR(NTR "usage: xdelta3 [command/options] [input [output]]\n"); - XPR(NTR "make patch:\n"); - XPR(NTR "\n"); - XPR(NTR " xdelta3.exe -e -s old_file new_file delta_file\n"); - XPR(NTR "\n"); - XPR(NTR "apply patch:\n"); - XPR(NTR "\n"); - XPR(NTR " xdelta3.exe -d -s old_file delta_file decoded_new_file\n"); - XPR(NTR "\n"); - XPR(NTR "special command names:\n"); - XPR(NTR " config prints xdelta3 configuration\n"); - XPR(NTR " decode decompress the input\n"); - XPR(NTR " encode compress the input%s\n", - XD3_ENCODER ? "" : " [Not compiled]"); -#if REGRESSION_TEST - XPR(NTR " test run the builtin tests\n"); -#endif -#if VCDIFF_TOOLS - XPR(NTR "special commands for VCDIFF inputs:\n"); - XPR(NTR " printdelta print information about the entire delta\n"); - XPR(NTR " printhdr print information about the first window\n"); - XPR(NTR " printhdrs print information about all windows\n"); - XPR(NTR " recode encode with new application/secondary settings\n"); - XPR(NTR " merge merge VCDIFF inputs (see below)\n"); -#endif - XPR(NTR "merge patches:\n"); - XPR(NTR "\n"); - XPR(NTR " xdelta3 merge -m 1.vcdiff -m 2.vcdiff 3.vcdiff merged.vcdiff\n"); - XPR(NTR "\n"); - XPR(NTR "standard options:\n"); - XPR(NTR " -0 .. -9 compression level\n"); - XPR(NTR " -c use stdout\n"); - XPR(NTR " -d decompress\n"); - XPR(NTR " -e compress%s\n", - XD3_ENCODER ? "" : " [Not compiled]"); - XPR(NTR " -f force (overwrite, ignore trailing garbage)\n"); -#if EXTERNAL_COMPRESSION - XPR(NTR " -F force the external-compression subprocess\n"); -#endif - XPR(NTR " -h show help\n"); - XPR(NTR " -q be quiet\n"); - XPR(NTR " -v be verbose (max 2)\n"); - XPR(NTR " -V show version\n"); - - XPR(NTR "memory options:\n"); - XPR(NTR " -B bytes source window size\n"); - XPR(NTR " -W bytes input window size\n"); - XPR(NTR " -P size compression duplicates window\n"); - XPR(NTR " -I size instruction buffer size (0 = unlimited)\n"); - - XPR(NTR "compression options:\n"); - XPR(NTR " -s source source file to copy from (if any)\n"); - XPR(NTR " -S [lzma|djw|fgk] enable/disable secondary compression\n"); - XPR(NTR " -N disable small string-matching compression\n"); - XPR(NTR " -D disable external decompression (encode/decode)\n"); - XPR(NTR " -R disable external recompression (decode)\n"); - XPR(NTR " -n disable checksum (encode/decode)\n"); - XPR(NTR " -C soft config (encode, undocumented)\n"); - XPR(NTR " -A [apphead] disable/provide application header (encode)\n"); - XPR(NTR " -J disable output (check/compute only)\n"); - XPR(NTR " -m arguments for \"merge\"\n"); - - XPR(NTR "the XDELTA environment variable may contain extra args:\n"); - XPR(NTR " XDELTA=\"-s source-x.y.tar.gz\" \\\n"); - XPR(NTR " tar --use-compress-program=xdelta3 \\\n"); - XPR(NTR " -cf target-x.z.tar.gz.vcdiff target-x.y\n"); - return EXIT_FAILURE; -} diff --git a/extern/xdelta3/xdelta3-merge.h b/extern/xdelta3/xdelta3-merge.h deleted file mode 100644 index a09f814..0000000 --- a/extern/xdelta3/xdelta3-merge.h +++ /dev/null @@ -1,586 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2007. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _XDELTA3_MERGE_H_ -#define _XDELTA3_MERGE_H_ - -int xd3_merge_inputs (xd3_stream *stream, - xd3_whole_state *source, - xd3_whole_state *input); - -static int -xd3_whole_state_init (xd3_stream *stream) -{ - XD3_ASSERT (stream->whole_target.adds == NULL); - XD3_ASSERT (stream->whole_target.inst == NULL); - XD3_ASSERT (stream->whole_target.wininfo == NULL); - XD3_ASSERT (stream->whole_target.length == 0); - - stream->whole_target.adds_alloc = XD3_ALLOCSIZE; - stream->whole_target.inst_alloc = XD3_ALLOCSIZE; - stream->whole_target.wininfo_alloc = XD3_ALLOCSIZE; - - if ((stream->whole_target.adds = (uint8_t*) - xd3_alloc (stream, stream->whole_target.adds_alloc, 1)) == NULL || - (stream->whole_target.inst = (xd3_winst*) - xd3_alloc (stream, stream->whole_target.inst_alloc, 1)) == NULL || - (stream->whole_target.wininfo = (xd3_wininfo*) - xd3_alloc (stream, stream->whole_target.wininfo_alloc, 1)) == NULL) - { - return ENOMEM; - } - return 0; -} - -static void -xd3_swap_whole_state (xd3_whole_state *a, - xd3_whole_state *b) -{ - xd3_whole_state tmp; - XD3_ASSERT (a->inst != NULL && a->adds != NULL); - XD3_ASSERT (b->inst != NULL && b->adds != NULL); - XD3_ASSERT (b->wininfo != NULL && b->wininfo != NULL); - memcpy (&tmp, a, sizeof (xd3_whole_state)); - memcpy (a, b, sizeof (xd3_whole_state)); - memcpy (b, &tmp, sizeof (xd3_whole_state)); -} - -static int -xd3_realloc_buffer (xd3_stream *stream, - usize_t current_units, - usize_t unit_size, - usize_t new_units, - usize_t *alloc_size, - void **alloc_ptr) -{ - usize_t needed; - usize_t new_alloc; - usize_t cur_size; - uint8_t *new_buf; - - needed = (current_units + new_units) * unit_size; - - if (needed <= *alloc_size) - { - return 0; - } - - cur_size = current_units * unit_size; - new_alloc = xd3_round_blksize (needed * 2, XD3_ALLOCSIZE); - - if ((new_buf = (uint8_t*) xd3_alloc (stream, new_alloc, 1)) == NULL) - { - return ENOMEM; - } - - if (cur_size != 0) - { - memcpy (new_buf, *alloc_ptr, cur_size); - } - - if (*alloc_ptr != NULL) - { - xd3_free (stream, *alloc_ptr); - } - - *alloc_size = new_alloc; - *alloc_ptr = new_buf; - - return 0; -} - -/* allocate one new output instruction */ -static int -xd3_whole_alloc_winst (xd3_stream *stream, - xd3_winst **winstp) -{ - int ret; - - if ((ret = xd3_realloc_buffer (stream, - stream->whole_target.instlen, - sizeof (xd3_winst), - 1, - & stream->whole_target.inst_alloc, - (void**) & stream->whole_target.inst))) - { - return ret; - } - - *winstp = &stream->whole_target.inst[stream->whole_target.instlen++]; - - return 0; -} - -static int -xd3_whole_alloc_adds (xd3_stream *stream, - usize_t count) -{ - return xd3_realloc_buffer (stream, - stream->whole_target.addslen, - 1, - count, - & stream->whole_target.adds_alloc, - (void**) & stream->whole_target.adds); -} - -static int -xd3_whole_alloc_wininfo (xd3_stream *stream, - xd3_wininfo **wininfop) -{ - int ret; - - if ((ret = xd3_realloc_buffer (stream, - stream->whole_target.wininfolen, - sizeof (xd3_wininfo), - 1, - & stream->whole_target.wininfo_alloc, - (void**) & stream->whole_target.wininfo))) - { - return ret; - } - - *wininfop = &stream->whole_target.wininfo[stream->whole_target.wininfolen++]; - - return 0; -} - -static int -xd3_whole_append_inst (xd3_stream *stream, - xd3_hinst *inst) -{ - int ret; - xd3_winst *winst; - - if ((ret = xd3_whole_alloc_winst (stream, &winst))) - { - return ret; - } - - winst->type = inst->type; - winst->mode = 0; - winst->size = inst->size; - winst->position = stream->whole_target.length; - stream->whole_target.length += inst->size; - - if (((inst->type == XD3_ADD) || (inst->type == XD3_RUN)) && - (ret = xd3_whole_alloc_adds (stream, - (inst->type == XD3_RUN ? 1 : inst->size)))) - { - return ret; - } - - switch (inst->type) - { - case XD3_RUN: - winst->addr = stream->whole_target.addslen; - stream->whole_target.adds[stream->whole_target.addslen++] = - *stream->data_sect.buf++; - break; - - case XD3_ADD: - winst->addr = stream->whole_target.addslen; - memcpy (stream->whole_target.adds + stream->whole_target.addslen, - stream->data_sect.buf, - inst->size); - stream->data_sect.buf += inst->size; - stream->whole_target.addslen += inst->size; - break; - - default: - if (inst->addr < stream->dec_cpylen) - { - winst->mode = SRCORTGT (stream->dec_win_ind); - winst->addr = stream->dec_cpyoff + inst->addr; - } - else - { - winst->addr = (stream->dec_winstart + - inst->addr - - stream->dec_cpylen); - } - break; - } - - return 0; -} - -int -xd3_whole_append_window (xd3_stream *stream) -{ - int ret; - xd3_wininfo *wininfo; - - if ((ret = xd3_whole_alloc_wininfo (stream, &wininfo))) { return ret; } - - wininfo->length = stream->dec_tgtlen; - wininfo->offset = stream->dec_winstart; - wininfo->adler32 = stream->dec_adler32; - - while (stream->inst_sect.buf < stream->inst_sect.buf_max) - { - if ((ret = xd3_decode_instruction (stream))) - { - return ret; - } - - if ((stream->dec_current1.type != XD3_NOOP) && - (ret = xd3_whole_append_inst (stream, - & stream->dec_current1))) - { - return ret; - } - - if ((stream->dec_current2.type != XD3_NOOP) && - (ret = xd3_whole_append_inst (stream, - & stream->dec_current2))) - { - return ret; - } - } - - return 0; -} - -/* xd3_merge_input_output applies *source to *stream, returns the - * result in stream. */ -int xd3_merge_input_output (xd3_stream *stream, - xd3_whole_state *source) -{ - int ret; - xd3_stream tmp_stream; - memset (& tmp_stream, 0, sizeof (tmp_stream)); - if ((ret = xd3_config_stream (& tmp_stream, NULL)) || - (ret = xd3_whole_state_init (& tmp_stream)) || - (ret = xd3_merge_inputs (& tmp_stream, - source, - & stream->whole_target))) - { - XPR(NT XD3_LIB_ERRMSG (&tmp_stream, ret)); - return ret; - } - - /* the output is in tmp_stream.whole_state, swap into input */ - xd3_swap_whole_state (& stream->whole_target, - & tmp_stream.whole_target); - /* total allocation counts are preserved */ - xd3_free_stream (& tmp_stream); - return 0; -} - -static int -xd3_merge_run (xd3_stream *stream, - xd3_whole_state *target, - xd3_winst *iinst) -{ - int ret; - xd3_winst *oinst; - - if ((ret = xd3_whole_alloc_winst (stream, &oinst)) || - (ret = xd3_whole_alloc_adds (stream, 1))) - { - return ret; - } - - oinst->type = iinst->type; - oinst->mode = iinst->mode; - oinst->size = iinst->size; - oinst->addr = stream->whole_target.addslen; - - XD3_ASSERT (stream->whole_target.length == iinst->position); - oinst->position = stream->whole_target.length; - stream->whole_target.length += iinst->size; - - stream->whole_target.adds[stream->whole_target.addslen++] = - target->adds[iinst->addr]; - - return 0; -} - -static int -xd3_merge_add (xd3_stream *stream, - xd3_whole_state *target, - xd3_winst *iinst) -{ - int ret; - xd3_winst *oinst; - - if ((ret = xd3_whole_alloc_winst (stream, &oinst)) || - (ret = xd3_whole_alloc_adds (stream, iinst->size))) - { - return ret; - } - - oinst->type = iinst->type; - oinst->mode = iinst->mode; - oinst->size = iinst->size; - oinst->addr = stream->whole_target.addslen; - - XD3_ASSERT (stream->whole_target.length == iinst->position); - oinst->position = stream->whole_target.length; - stream->whole_target.length += iinst->size; - - memcpy(stream->whole_target.adds + stream->whole_target.addslen, - target->adds + iinst->addr, - iinst->size); - - stream->whole_target.addslen += iinst->size; - - return 0; -} - -static int -xd3_merge_target_copy (xd3_stream *stream, - xd3_winst *iinst) -{ - int ret; - xd3_winst *oinst; - - if ((ret = xd3_whole_alloc_winst (stream, &oinst))) - { - return ret; - } - - XD3_ASSERT (stream->whole_target.length == iinst->position); - - memcpy (oinst, iinst, sizeof (*oinst)); - return 0; -} - -static int -xd3_merge_find_position (xd3_stream *stream, - xd3_whole_state *source, - xoff_t address, - usize_t *inst_num) -{ - usize_t low; - usize_t high; - - if (address >= source->length) - { - stream->msg = "Invalid copy offset in merge"; - return XD3_INVALID_INPUT; - } - - low = 0; - high = source->instlen; - - while (low != high) - { - xoff_t mid_lpos; - xoff_t mid_hpos; - usize_t mid = low + (high - low) / 2; - mid_lpos = source->inst[mid].position; - - if (address < mid_lpos) - { - high = mid; - continue; - } - - mid_hpos = mid_lpos + source->inst[mid].size; - - if (address >= mid_hpos) - { - low = mid + 1; - continue; - } - - *inst_num = mid; - return 0; - } - - stream->msg = "Internal error in merge"; - return XD3_INTERNAL; -} - -static int -xd3_merge_source_copy (xd3_stream *stream, - xd3_whole_state *source, - const xd3_winst *iinst_orig) -{ - int ret; - xd3_winst iinst; - usize_t sinst_num; - - memcpy (& iinst, iinst_orig, sizeof (iinst)); - - XD3_ASSERT (iinst.mode == VCD_SOURCE); - - if ((ret = xd3_merge_find_position (stream, source, - iinst.addr, &sinst_num))) - { - return ret; - } - - while (iinst.size > 0) - { - xd3_winst *sinst; - xd3_winst *minst; - usize_t sinst_offset; - usize_t sinst_left; - usize_t this_take; - - XD3_ASSERT (sinst_num < source->instlen); - - sinst = &source->inst[sinst_num]; - - XD3_ASSERT (iinst.addr >= sinst->position); - - sinst_offset = (usize_t)(iinst.addr - sinst->position); - - XD3_ASSERT (sinst->size > sinst_offset); - - sinst_left = sinst->size - sinst_offset; - this_take = xd3_min (iinst.size, sinst_left); - - XD3_ASSERT (this_take > 0); - - if ((ret = xd3_whole_alloc_winst (stream, &minst))) - { - return ret; - } - - minst->size = this_take; - minst->type = sinst->type; - minst->position = iinst.position; - minst->mode = 0; - - switch (sinst->type) - { - case XD3_RUN: - if ((ret = xd3_whole_alloc_adds (stream, 1))) - { - return ret; - } - - minst->addr = stream->whole_target.addslen; - stream->whole_target.adds[stream->whole_target.addslen++] = - source->adds[sinst->addr]; - break; - case XD3_ADD: - if ((ret = xd3_whole_alloc_adds (stream, this_take))) - { - return ret; - } - - minst->addr = stream->whole_target.addslen; - memcpy(stream->whole_target.adds + stream->whole_target.addslen, - source->adds + sinst->addr + sinst_offset, - this_take); - stream->whole_target.addslen += this_take; - break; - default: - if (sinst->mode != 0) - { - minst->mode = sinst->mode; - minst->addr = sinst->addr + sinst_offset; - } - else - { - // Note: A better implementation will construct the - // mapping of output ranges, starting from the input - // range, applying deltas in forward order, using an - // interval tree. This code uses recursion to construct - // each copied range, recursively (using binary search - // in xd3_merge_find_position). - // - // TODO: This code can cause stack overflow. Fix as - // described above. - xd3_winst tinst; - tinst.type = XD3_CPY; - tinst.mode = iinst.mode; - tinst.addr = sinst->addr + sinst_offset; - tinst.size = this_take; - tinst.position = iinst.position; - - // The instruction allocated in this frame will not be used. - stream->whole_target.instlen -= 1; - - if ((ret = xd3_merge_source_copy (stream, source, &tinst))) - { - return ret; - } - } - break; - } - - iinst.position += this_take; - iinst.addr += this_take; - iinst.size -= this_take; - sinst_num += 1; - } - - return 0; -} - -/* xd3_merge_inputs() applies *input to *source, returns its result in - * stream. */ -int xd3_merge_inputs (xd3_stream *stream, - xd3_whole_state *source, - xd3_whole_state *input) -{ - int ret = 0; - usize_t i; - size_t input_i; - - for (i = 0; i < input->wininfolen; ++i) { - xd3_wininfo *copyinfo; - - if ((ret = xd3_whole_alloc_wininfo (stream, ©info))) { return ret; } - - *copyinfo = input->wininfo[i]; - } - - /* iterate over each instruction. */ - for (input_i = 0; ret == 0 && input_i < input->instlen; ++input_i) - { - xd3_winst *iinst = &input->inst[input_i]; - - switch (iinst->type) - { - case XD3_RUN: - ret = xd3_merge_run (stream, input, iinst); - break; - case XD3_ADD: - ret = xd3_merge_add (stream, input, iinst); - break; - default: - if (iinst->mode == 0) - { - ret = xd3_merge_target_copy (stream, iinst); - } - else if (iinst->mode == VCD_TARGET) - { - ret = XD3_INVALID_INPUT; - } - else - { - ret = xd3_merge_source_copy (stream, source, iinst); - } - - /* The whole_target.length is not updated in the xd3_merge*copy - * routine because of recursion in xd3_merge_source_copy. */ - stream->whole_target.length += iinst->size; - break; - } - } - - return ret; -} - -#endif diff --git a/extern/xdelta3/xdelta3-second.h b/extern/xdelta3/xdelta3-second.h deleted file mode 100644 index e8a2c8f..0000000 --- a/extern/xdelta3/xdelta3-second.h +++ /dev/null @@ -1,324 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2002, 2003, 2006, 2007, 2013. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _XDELTA3_SECOND_H_ -#define _XDELTA3_SECOND_H_ - -static inline void xd3_bit_state_encode_init (bit_state *bits) -{ - bits->cur_byte = 0; - bits->cur_mask = 1; -} - -static inline int xd3_decode_bits (xd3_stream *stream, - bit_state *bits, - const uint8_t **input, - const uint8_t *input_max, - usize_t nbits, - usize_t *valuep) -{ - usize_t value = 0; - usize_t vmask = 1 << nbits; - - if (bits->cur_mask == 0x100) { goto next_byte; } - - for (;;) - { - do - { - vmask >>= 1; - - if (bits->cur_byte & bits->cur_mask) - { - value |= vmask; - } - - bits->cur_mask <<= 1; - - if (vmask == 1) { goto done; } - } - while (bits->cur_mask != 0x100); - - next_byte: - - if (*input == input_max) - { - stream->msg = "secondary decoder end of input"; - return XD3_INTERNAL; - } - - bits->cur_byte = *(*input)++; - bits->cur_mask = 1; - } - - done: - - IF_DEBUG2 (DP(RINT "(d) %u ", value)); - - (*valuep) = value; - return 0; -} - -#if REGRESSION_TEST -/* There may be extra bits at the end of secondary decompression, this macro - * checks for non-zero bits. This is overly strict, but helps pass the - * single-bit-error regression test. */ -static int -xd3_test_clean_bits (xd3_stream *stream, bit_state *bits) -{ - for (; bits->cur_mask != 0x100; bits->cur_mask <<= 1) - { - if (bits->cur_byte & bits->cur_mask) - { - stream->msg = "secondary decoder garbage"; - return XD3_INTERNAL; - } - } - - return 0; -} -#endif - -static int -xd3_get_secondary (xd3_stream *stream, xd3_sec_stream **sec_streamp, - int is_encode) -{ - if (*sec_streamp == NULL) - { - int ret; - - if ((*sec_streamp = stream->sec_type->alloc (stream)) == NULL) - { - stream->msg = "error initializing secondary stream"; - return XD3_INVALID; - } - - if ((ret = stream->sec_type->init (stream, *sec_streamp, is_encode)) != 0) - { - return ret; - } - } - - return 0; -} - -static int -xd3_decode_secondary (xd3_stream *stream, - xd3_desect *sect, - xd3_sec_stream **sec_streamp) -{ - uint32_t dec_size; - uint8_t *out_used; - int ret; - - if ((ret = xd3_get_secondary (stream, sec_streamp, 0)) != 0) - { - return ret; - } - - /* Decode the size, allocate the buffer. */ - if ((ret = xd3_read_size (stream, & sect->buf, - sect->buf_max, & dec_size)) || - (ret = xd3_decode_allocate (stream, dec_size, - & sect->copied2, & sect->alloc2))) - { - return ret; - } - - if (dec_size == 0) - { - stream->msg = "secondary decoder invalid output size"; - return XD3_INVALID_INPUT; - } - - out_used = sect->copied2; - - if ((ret = stream->sec_type->decode (stream, *sec_streamp, - & sect->buf, sect->buf_max, - & out_used, out_used + dec_size))) - { - return ret; - } - - if (sect->buf != sect->buf_max) - { - stream->msg = "secondary decoder finished with unused input"; - return XD3_INTERNAL; - } - - if (out_used != sect->copied2 + dec_size) - { - stream->msg = "secondary decoder short output"; - return XD3_INTERNAL; - } - - sect->buf = sect->copied2; - sect->buf_max = sect->copied2 + dec_size; - sect->size = dec_size; - - return 0; -} - -#if XD3_ENCODER -static inline int xd3_encode_bit (xd3_stream *stream, - xd3_output **output, - bit_state *bits, - usize_t bit) -{ - int ret; - - if (bit) - { - bits->cur_byte |= bits->cur_mask; - } - - /* OPT: Might help to buffer more than 8 bits at once. */ - if (bits->cur_mask == 0x80) - { - if ((ret = xd3_emit_byte (stream, output, bits->cur_byte)) != 0) - { - return ret; - } - - bits->cur_mask = 1; - bits->cur_byte = 0; - } - else - { - bits->cur_mask <<= 1; - } - - return 0; -} - -static inline int xd3_flush_bits (xd3_stream *stream, - xd3_output **output, - bit_state *bits) -{ - return (bits->cur_mask == 1) ? 0 : - xd3_emit_byte (stream, output, bits->cur_byte); -} - -static inline int xd3_encode_bits (xd3_stream *stream, - xd3_output **output, - bit_state *bits, - usize_t nbits, - usize_t value) -{ - int ret; - usize_t mask = 1 << nbits; - - XD3_ASSERT (nbits > 0); - XD3_ASSERT (nbits < sizeof (usize_t) * 8); - XD3_ASSERT (value < mask); - - do - { - mask >>= 1; - - if ((ret = xd3_encode_bit (stream, output, bits, value & mask))) - { - return ret; - } - } - while (mask != 1); - - IF_DEBUG2 (DP(RINT "(e) %u ", value)); - - return 0; -} - -static int -xd3_encode_secondary (xd3_stream *stream, - xd3_output **head, - xd3_output **tail, - xd3_sec_stream **sec_streamp, - xd3_sec_cfg *cfg, - int *did_it) -{ - xd3_output *tmp_head; - xd3_output *tmp_tail; - - usize_t comp_size; - usize_t orig_size; - - int ret; - - orig_size = xd3_sizeof_output (*head); - - if (orig_size < SECONDARY_MIN_INPUT) { return 0; } - - if ((ret = xd3_get_secondary (stream, sec_streamp, 1)) != 0) - { - return ret; - } - - tmp_head = xd3_alloc_output (stream, NULL); - - /* Encode the size, encode the data. Encoding the size makes it - * simpler, but is a little gross. Should not need the entire - * section in contiguous memory, but it is much easier this way. */ - if ((ret = xd3_emit_size (stream, & tmp_head, orig_size)) || - (ret = stream->sec_type->encode (stream, *sec_streamp, *head, - tmp_head, cfg))) - { - goto getout; - } - - /* If the secondary compressor determines it's no good, it returns - * XD3_NOSECOND. */ - - /* Setup tmp_tail, comp_size */ - tmp_tail = tmp_head; - comp_size = tmp_head->next; - - while (tmp_tail->next_page != NULL) - { - tmp_tail = tmp_tail->next_page; - comp_size += tmp_tail->next; - } - - XD3_ASSERT (comp_size == xd3_sizeof_output (tmp_head)); - XD3_ASSERT (tmp_tail != NULL); - - if (comp_size < (orig_size - SECONDARY_MIN_SAVINGS) || cfg->inefficient) - { - if (comp_size < orig_size) - { - IF_DEBUG1(DP(RINT "[encode_secondary] saved %u bytes: %u -> %u (%0.2f%%)\n", - orig_size - comp_size, orig_size, comp_size, - 100.0 * (double) comp_size / (double) orig_size)); - } - - xd3_free_output (stream, *head); - - *head = tmp_head; - *tail = tmp_tail; - *did_it = 1; - } - else - { - getout: - if (ret == XD3_NOSECOND) { ret = 0; } - xd3_free_output (stream, tmp_head); - } - - return ret; -} -#endif /* XD3_ENCODER */ -#endif /* _XDELTA3_SECOND_H_ */ diff --git a/extern/xdelta3/xdelta3-test.h b/extern/xdelta3/xdelta3-test.h deleted file mode 100644 index 6d7d85b..0000000 --- a/extern/xdelta3/xdelta3-test.h +++ /dev/null @@ -1,2977 +0,0 @@ -/* xdelta 3 - delta compression tools and library Copyright (C) 2001, - * 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. - * Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* This is public-domain Mersenne Twister code, - * attributed to Michael Brundage. Thanks! - * http://www.qbrundage.com/michaelb/pubs/essays/random_number_generation.html - */ -static const uint32_t TEST_SEED1 = 5489UL; -#define MT_LEN 624 -#define MT_IA 397 -static const uint32_t UPPER_MASK = 0x80000000; -static const uint32_t LOWER_MASK = 0x7FFFFFFF; -static const uint32_t MATRIX_A = 0x9908B0DF; - -#ifndef SHELL_TESTS -#define SHELL_TESTS 1 -#endif - -typedef struct mtrand mtrand; - -struct mtrand { - int mt_index_; - uint32_t mt_buffer_[MT_LEN]; -}; - -int test_compare_files (const char* tgt, const char *rec); -void mt_init(mtrand *mt, uint32_t seed); -uint32_t mt_random (mtrand *mt); -int test_setup (void); - -void mt_init(mtrand *mt, uint32_t seed) { - int i; - mt->mt_buffer_[0] = seed; - mt->mt_index_ = MT_LEN; - for (i = 1; i < MT_LEN; i++) { - /* See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. */ - /* In the previous versions, MSBs of the seed affect */ - /* only MSBs of the array mt[]. */ - /* 2002/01/09 modified by Makoto Matsumoto */ - mt->mt_buffer_[i] = - (1812433253UL * (mt->mt_buffer_[i-1] ^ - (mt->mt_buffer_[i-1] >> 30)) + i); - } -} - -uint32_t mt_random (mtrand *mt) { - uint32_t y; - unsigned long mag01[2]; - mag01[0] = 0; - mag01[1] = MATRIX_A; - - if (mt->mt_index_ >= MT_LEN) { - int kk; - - for (kk = 0; kk < MT_LEN - MT_IA; kk++) { - y = (mt->mt_buffer_[kk] & UPPER_MASK) | - (mt->mt_buffer_[kk + 1] & LOWER_MASK); - mt->mt_buffer_[kk] = mt->mt_buffer_[kk + MT_IA] ^ - (y >> 1) ^ mag01[y & 0x1UL]; - } - for (;kk < MT_LEN - 1; kk++) { - y = (mt->mt_buffer_[kk] & UPPER_MASK) | - (mt->mt_buffer_[kk + 1] & LOWER_MASK); - mt->mt_buffer_[kk] = mt->mt_buffer_[kk + (MT_IA - MT_LEN)] ^ - (y >> 1) ^ mag01[y & 0x1UL]; - } - y = (mt->mt_buffer_[MT_LEN - 1] & UPPER_MASK) | - (mt->mt_buffer_[0] & LOWER_MASK); - mt->mt_buffer_[MT_LEN - 1] = mt->mt_buffer_[MT_IA - 1] ^ - (y >> 1) ^ mag01[y & 0x1UL]; - mt->mt_index_ = 0; - } - - y = mt->mt_buffer_[mt->mt_index_++]; - - y ^= (y >> 11); - y ^= (y << 7) & 0x9d2c5680UL; - y ^= (y << 15) & 0xefc60000UL; - y ^= (y >> 18); - - return y; -} - -static mtrand static_mtrand; - -#include - -static uint32_t -mt_exp_rand (uint32_t mean, uint32_t max_value) -{ - double mean_d = mean; - double erand = log (1.0 / (mt_random (&static_mtrand) / - (double)UINT32_MAX)); - uint32_t x = (uint32_t) (mean_d * erand + 0.5); - - return xd3_min (x, max_value); -} - -#if SHELL_TESTS -#include -#endif - -#define MSG_IS(x) (stream->msg != NULL && strcmp ((x), stream->msg) == 0) - -static const usize_t TWO_MEGS_AND_DELTA = (3 << 20); -static const usize_t ADDR_CACHE_ROUNDS = 10000; - -static const usize_t TEST_FILE_MEAN = 16384; -static const double TEST_ADD_MEAN = 128; -static const double TEST_ADD_MAX = 512; -static const double TEST_ADD_RATIO = 0.1; -static const double TEST_EPSILON = 0.25; - -#define TESTBUFSIZE (1024 * 16) - -#define TESTFILESIZE (1024) - -static char TEST_TARGET_FILE[TESTFILESIZE]; -static char TEST_SOURCE_FILE[TESTFILESIZE]; -static char TEST_DELTA_FILE[TESTFILESIZE]; -static char TEST_RECON_FILE[TESTFILESIZE]; -static char TEST_RECON2_FILE[TESTFILESIZE]; -static char TEST_COPY_FILE[TESTFILESIZE]; -static char TEST_NOPERM_FILE[TESTFILESIZE]; - -#define CHECK(cond) if (!(cond)) { XPR(NT "check failure: " #cond); abort(); } - -#if SHELL_TESTS -/* Use a fixed soft config so that test values are fixed. See also - * test_compress_text(). */ -static const char* test_softcfg_str = "-C9,3,4,8,2,36,70"; -#endif - -/*********************************************************************** - TEST HELPERS - ***********************************************************************/ - -static void DOT (void) { XPR(NTR "."); } -static int do_cmd (xd3_stream *stream, const char *buf) -{ - int ret; - if ((ret = system (buf)) != 0) - { - if (WIFEXITED (ret)) - { - stream->msg = "command exited non-zero"; - IF_DEBUG1 (XPR(NT "command was: %s\n", buf)); - } - else - { - stream->msg = "abnormal command termination"; - } - return ret; - } - return 0; -} - -static int do_fail (xd3_stream *stream, const char *buf) -{ - int ret; - ret = system (buf); - if (! WIFEXITED (ret) || WEXITSTATUS (ret) != 1) - { - stream->msg = "command should have not succeeded"; - XPR(NT "command was %s\n", buf); - return XD3_INTERNAL; - } - return 0; -} - -/* Test that the exponential distribution actually produces its mean. */ -static int -test_random_numbers (xd3_stream *stream, int ignore) -{ - usize_t i; - usize_t sum = 0; - usize_t mean = 50; - usize_t n_rounds = 1000000; - double average, error; - double allowed_error = 0.1; - - mt_init (& static_mtrand, 0x9f73f7fe); - - for (i = 0; i < n_rounds; i += 1) - { - sum += mt_exp_rand (mean, USIZE_T_MAX); - } - - average = (double) sum / (double) n_rounds; - error = average - (double) mean; - - if (error < allowed_error && error > -allowed_error) - { - return 0; - } - - /*XPR(NT "error is %f\n", error);*/ - stream->msg = "random distribution looks broken"; - return XD3_INTERNAL; -} - -static int -test_printf_xoff (xd3_stream *stream, int ignore) -{ - char buf[64]; - xoff_t x = XOFF_T_MAX; - snprintf_func (buf, sizeof(buf), "%"Q"u", x); - const char *expect = XD3_USE_LARGEFILE64 ? - "18446744073709551615" : "4294967295"; - if (strcmp (buf, expect) == 0) { - return 0; - } - return XD3_INTERNAL; -} - -static void -test_unlink (char* file) -{ - int ret; - if (file != NULL && *file != 0 && - (ret = unlink (file)) != 0 && errno != ENOENT) - { - XPR(NT "unlink %s failed: %s\n", file, strerror(ret)); - } -} - -static void -test_cleanup (void) -{ -#if 1 - test_unlink (TEST_TARGET_FILE); - test_unlink (TEST_SOURCE_FILE); - test_unlink (TEST_DELTA_FILE); - test_unlink (TEST_RECON_FILE); - test_unlink (TEST_RECON2_FILE); - test_unlink (TEST_COPY_FILE); - test_unlink (TEST_NOPERM_FILE); -#endif -} - -int test_setup (void) -{ - static int x = 0; - pid_t pid = getpid(); - x++; - - test_cleanup(); - - snprintf_func (TEST_TARGET_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.target.%d", pid, x); - snprintf_func (TEST_SOURCE_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.source.%d", pid, x); - snprintf_func (TEST_DELTA_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.delta.%d", pid, x); - snprintf_func (TEST_RECON_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.recon.%d", pid, x); - snprintf_func (TEST_RECON2_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.recon2.%d", pid, x); - snprintf_func (TEST_COPY_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.copy.%d", pid, x); - snprintf_func (TEST_NOPERM_FILE, TESTFILESIZE, - "/tmp/xdtest.%d.noperm.%d", pid, x); - - test_cleanup(); - return 0; -} - -static int -test_make_inputs (xd3_stream *stream, xoff_t *ss_out, xoff_t *ts_out) -{ - usize_t ts = (mt_random (&static_mtrand) % TEST_FILE_MEAN) + - TEST_FILE_MEAN / 2; - usize_t ss = (mt_random (&static_mtrand) % TEST_FILE_MEAN) + - TEST_FILE_MEAN / 2; - uint8_t *buf = (uint8_t*) malloc (ts + ss), *sbuf = buf, *tbuf = buf + ss; - usize_t sadd = 0, sadd_max = (usize_t)(ss * TEST_ADD_RATIO); - FILE *tf = NULL, *sf = NULL; - usize_t i, j; - int ret; - - if (buf == NULL) { return ENOMEM; } - - if ((tf = fopen (TEST_TARGET_FILE, "w")) == NULL || - (ss_out != NULL && (sf = fopen (TEST_SOURCE_FILE, "w")) == NULL)) - { - stream->msg = "write failed"; - ret = get_errno (); - goto failure; - } - - if (ss_out != NULL) - { - for (i = 0; i < ss; ) - { - sbuf[i++] = (uint8_t) mt_random (&static_mtrand); - } - } - - /* Then modify the data to produce copies, everything not copied is - * an add. The following logic produces the TEST_ADD_RATIO. The - * variable SADD contains the number of adds so far, which should - * not exceed SADD_MAX. */ - - /* XPR(NT "ss = %u ts = %u\n", ss, ts); */ - for (i = 0; i < ts; ) - { - usize_t left = ts - i; - usize_t next = mt_exp_rand ((uint32_t) TEST_ADD_MEAN, - (uint32_t) TEST_ADD_MAX); - usize_t add_left = sadd_max - sadd; - double add_prob = (left == 0) ? 0 : (add_left / (double) left); - int do_copy; - - next = xd3_min (left, next); - do_copy = (next > add_left || - (mt_random (&static_mtrand) / \ - (double)USIZE_T_MAX) >= add_prob); - - if (ss_out == NULL) - { - do_copy &= (i > 0); - } - else - { - do_copy &= (ss - next) > 0; - } - - if (do_copy) - { - /* Copy */ - size_t offset = mt_random (&static_mtrand) % ((ss_out == NULL) ? - i : - (ss - next)); - /* XPR(NT "[%u] copy %u at %u ", i, next, offset); */ - - for (j = 0; j < next; j += 1) - { - char c = ((ss_out == NULL) ? tbuf : sbuf)[offset + j]; - /* XPR(NT "%x%x", (c >> 4) & 0xf, c & 0xf); */ - tbuf[i++] = c; - } - /* XPR(NT "\n"); */ - } - else - { - /* Add */ - /* XPR(NT "[%u] add %u ", i, next); */ - for (j = 0; j < next; j += 1) - { - char c = (char) mt_random (&static_mtrand); - /* XPR(NT "%x%x", (c >> 4) & 0xf, c & 0xf); */ - tbuf[i++] = c; - } - /* XPR(NT "\n"); */ - sadd += next; - } - } - - /* XPR(NT "sadd = %u max = %u\n", sadd, sadd_max); */ - - if ((fwrite (tbuf, 1, ts, tf) != ts) || - (ss_out != NULL && (fwrite (sbuf, 1, ss, sf) != ss))) - { - stream->msg = "write failed"; - ret = get_errno (); - goto failure; - } - - if ((ret = fclose (tf)) || (ss_out != NULL && (ret = fclose (sf)))) - { - stream->msg = "close failed"; - ret = get_errno (); - goto failure; - } - - if (ts_out) { (*ts_out) = ts; } - if (ss_out) { (*ss_out) = ss; } - - failure: - free (buf); - return ret; -} - -int -test_compare_files (const char* tgt, const char *rec) -{ - FILE *orig, *recons; - static uint8_t obuf[TESTBUFSIZE], rbuf[TESTBUFSIZE]; - xoff_t offset = 0; - size_t i; - size_t oc, rc; - xoff_t diffs = 0; - - if ((orig = fopen (tgt, "r")) == NULL) - { - XPR(NT "open %s failed\n", tgt); - return get_errno (); - } - - if ((recons = fopen (rec, "r")) == NULL) - { - XPR(NT "open %s failed\n", rec); - return get_errno (); - } - - for (;;) - { - oc = fread (obuf, 1, TESTBUFSIZE, orig); - rc = fread (rbuf, 1, TESTBUFSIZE, recons); - - if (oc != rc) - { - return XD3_INTERNAL; - } - - if (oc == 0) - { - break; - } - - for (i = 0; i < oc; i += 1) - { - if (obuf[i] != rbuf[i]) - { - XPR(NT "byte %u (read %u @ %"Q"u) %d != %d\n", - (int)i, (int)oc, offset, obuf[i], rbuf[i]); - diffs++; - return XD3_INTERNAL; - } - } - - offset += oc; - } - - fclose (orig); - fclose (recons); - if (diffs != 0) - { - return XD3_INTERNAL; - } - return 0; -} - -static int -test_copy_to (const char *from, const char *to) -{ - char buf[TESTBUFSIZE]; - int ret; - - snprintf_func (buf, TESTBUFSIZE, "cp -f %s %s", from, to); - - if ((ret = system (buf)) != 0) - { - return XD3_INTERNAL; - } - - return 0; -} - -static int -test_save_copy (const char *origname) -{ - return test_copy_to(origname, TEST_COPY_FILE); -} - -static int -test_file_size (const char* file, xoff_t *size) -{ - struct stat sbuf; - int ret; - (*size) = 0; - - if (stat (file, & sbuf) < 0) - { - ret = get_errno (); - XPR(NT "stat failed: %s: %s\n", file, strerror (ret)); - return ret; - } - - if (! S_ISREG (sbuf.st_mode)) - { - ret = XD3_INTERNAL; - XPR(NT "not a regular file: %s: %s\n", file, strerror (ret)); - return ret; - } - - (*size) = sbuf.st_size; - return 0; -} - -/*********************************************************************** - READ OFFSET - ***********************************************************************/ - -/* Common test for read_integer errors: encodes a 64-bit value and - * then attempts to read as a 32-bit value. If TRUNC is non-zero, - * attempts to get errors by shortening the input, otherwise it should - * overflow. Expects XD3_INTERNAL and MSG. */ -static int -test_read_integer_error (xd3_stream *stream, usize_t trunto, const char *msg) -{ - uint64_t eval = 1ULL << 34; - uint32_t rval; - xd3_output *buf = NULL; - const uint8_t *max; - const uint8_t *inp; - int ret; - - buf = xd3_alloc_output (stream, buf); - - if ((ret = xd3_emit_uint64_t (stream, & buf, eval))) - { - goto fail; - } - - again: - - inp = buf->base; - max = buf->base + buf->next - trunto; - - if ((ret = xd3_read_uint32_t (stream, & inp, max, & rval)) != - XD3_INVALID_INPUT || - !MSG_IS (msg)) - { - ret = XD3_INTERNAL; - } - else if (trunto && trunto < buf->next) - { - trunto += 1; - goto again; - } - else - { - ret = 0; - } - - fail: - xd3_free_output (stream, buf); - return ret; -} - -/* Test integer overflow using the above routine. */ -static int -test_decode_integer_overflow (xd3_stream *stream, int unused) -{ - return test_read_integer_error (stream, 0, "overflow in read_intger"); -} - -/* Test integer EOI using the above routine. */ -static int -test_decode_integer_end_of_input (xd3_stream *stream, int unused) -{ - return test_read_integer_error (stream, 1, "end-of-input in read_integer"); -} - -/* Test that emit_integer/decode_integer/sizeof_integer/read_integer - * work on correct inputs. Tests powers of (2^7), plus or minus, up - * to the maximum value. */ -#define TEST_ENCODE_DECODE_INTEGER(TYPE,ONE,MAX) \ - xd3_output *rbuf = NULL; \ - xd3_output *dbuf = NULL; \ - TYPE values[64]; \ - usize_t nvalues = 0; \ - usize_t i; \ - int ret = 0; \ - \ - for (i = 0; i < (sizeof (TYPE) * 8); i += 7) \ - { \ - values[nvalues++] = (ONE << i) - ONE; \ - values[nvalues++] = (ONE << i); \ - values[nvalues++] = (ONE << i) + ONE; \ - } \ - \ - values[nvalues++] = MAX-ONE; \ - values[nvalues++] = MAX; \ - \ - rbuf = xd3_alloc_output (stream, rbuf); \ - dbuf = xd3_alloc_output (stream, dbuf); \ - \ - for (i = 0; i < nvalues; i += 1) \ - { \ - const uint8_t *max; \ - const uint8_t *inp; \ - TYPE val; \ - \ - DOT (); \ - rbuf->next = 0; \ - \ - if ((ret = xd3_emit_ ## TYPE (stream, & rbuf, values[i])) || \ - (ret = xd3_emit_ ## TYPE (stream, & dbuf, values[i]))) \ - { \ - goto fail; \ - } \ - \ - inp = rbuf->base; \ - max = rbuf->base + rbuf->next; \ - \ - if (rbuf->next != xd3_sizeof_ ## TYPE (values[i])) \ - { \ - ret = XD3_INTERNAL; \ - goto fail; \ - } \ - \ - if ((ret = xd3_read_ ## TYPE (stream, & inp, max, & val))) \ - { \ - goto fail; \ - } \ - \ - if (val != values[i]) \ - { \ - ret = XD3_INTERNAL; \ - goto fail; \ - } \ - \ - DOT (); \ - } \ - \ - stream->next_in = dbuf->base; \ - stream->avail_in = dbuf->next; \ - \ - for (i = 0; i < nvalues; i += 1) \ - { \ - TYPE val; \ - \ - if ((ret = xd3_decode_ ## TYPE (stream, & val))) \ - { \ - goto fail; \ - } \ - \ - if (val != values[i]) \ - { \ - ret = XD3_INTERNAL; \ - goto fail; \ - } \ - } \ - \ - if (stream->avail_in != 0) \ - { \ - ret = XD3_INTERNAL; \ - goto fail; \ - } \ - \ - fail: \ - xd3_free_output (stream, rbuf); \ - xd3_free_output (stream, dbuf); \ - \ - return ret - -static int -test_encode_decode_uint32_t (xd3_stream *stream, int unused) -{ - TEST_ENCODE_DECODE_INTEGER(uint32_t,1U,UINT32_MAX); -} - -static int -test_encode_decode_uint64_t (xd3_stream *stream, int unused) -{ - TEST_ENCODE_DECODE_INTEGER(uint64_t,1ULL,UINT64_MAX); -} - -static int -test_usize_t_overflow (xd3_stream *stream, int unused) -{ - if (USIZE_T_OVERFLOW (USIZE_T_MAX, 0)) { goto fail; } - if (USIZE_T_OVERFLOW (0, USIZE_T_MAX)) { goto fail; } - if (USIZE_T_OVERFLOW (USIZE_T_MAX / 2, USIZE_T_MAX / 2)) { goto fail; } - if (USIZE_T_OVERFLOW (USIZE_T_MAX / 2, USIZE_T_MAX / 2 + 1)) { goto fail; } - - if (! USIZE_T_OVERFLOW (USIZE_T_MAX, 1)) { goto fail; } - if (! USIZE_T_OVERFLOW (1, USIZE_T_MAX)) { goto fail; } - if (! USIZE_T_OVERFLOW (USIZE_T_MAX / 2 + 1, USIZE_T_MAX / 2 + 1)) { goto fail; } - - return 0; - - fail: - stream->msg = "incorrect overflow computation"; - return XD3_INTERNAL; -} - -static int -test_forward_match (xd3_stream *stream, int unused) -{ - usize_t i; - uint8_t buf1[256], buf2[256]; - - memset(buf1, 0, 256); - memset(buf2, 0, 256); - - for (i = 0; i < 256; i++) - { - CHECK(xd3_forward_match(buf1, buf2, i) == (int)i); - } - - for (i = 0; i < 255; i++) - { - buf2[i] = 1; - CHECK(xd3_forward_match(buf1, buf2, 256) == (int)i); - buf2[i] = 0; - } - - return 0; -} - -/*********************************************************************** - Address cache - ***********************************************************************/ - -static int -test_address_cache (xd3_stream *stream, int unused) -{ - int ret; - usize_t i; - usize_t offset; - usize_t *addrs; - uint8_t *big_buf, *buf_max; - const uint8_t *buf; - xd3_output *outp; - uint8_t *modes; - int mode_counts[16]; - - stream->acache.s_near = stream->code_table_desc->near_modes; - stream->acache.s_same = stream->code_table_desc->same_modes; - - if ((ret = xd3_encode_init_partial (stream))) { return ret; } - - addrs = (usize_t*) xd3_alloc (stream, sizeof (usize_t), ADDR_CACHE_ROUNDS); - modes = (uint8_t*) xd3_alloc (stream, sizeof (uint8_t), ADDR_CACHE_ROUNDS); - - memset (mode_counts, 0, sizeof (mode_counts)); - memset (modes, 0, ADDR_CACHE_ROUNDS); - - addrs[0] = 0; - - mt_init (& static_mtrand, 0x9f73f7fc); - - /* First pass: encode addresses */ - xd3_init_cache (& stream->acache); - - for (offset = 1; offset < ADDR_CACHE_ROUNDS; offset += 1) - { - double p; - usize_t addr; - usize_t prev_i; - usize_t nearby; - - p = (mt_random (&static_mtrand) / (double)USIZE_T_MAX); - prev_i = mt_random (&static_mtrand) % offset; - nearby = (mt_random (&static_mtrand) % 256) % offset; - nearby = xd3_max (1U, nearby); - - if (p < 0.1) { addr = addrs[offset-nearby]; } - else if (p < 0.4) { addr = xd3_min (addrs[prev_i] + nearby, offset-1); } - else { addr = prev_i; } - - if ((ret = xd3_encode_address (stream, addr, offset, & modes[offset]))) { return ret; } - - addrs[offset] = addr; - mode_counts[modes[offset]] += 1; - } - - /* Copy addresses into a contiguous buffer. */ - big_buf = (uint8_t*) xd3_alloc (stream, xd3_sizeof_output (ADDR_HEAD (stream)), 1); - - for (offset = 0, outp = ADDR_HEAD (stream); outp != NULL; offset += outp->next, outp = outp->next_page) - { - memcpy (big_buf + offset, outp->base, outp->next); - } - - buf_max = big_buf + offset; - buf = big_buf; - - /* Second pass: decode addresses */ - xd3_init_cache (& stream->acache); - - for (offset = 1; offset < ADDR_CACHE_ROUNDS; offset += 1) - { - uint32_t addr; - - if ((ret = xd3_decode_address (stream, offset, modes[offset], & buf, buf_max, & addr))) { return ret; } - - if (addr != addrs[offset]) - { - stream->msg = "incorrect decoded address"; - return XD3_INTERNAL; - } - } - - /* Check that every byte, mode was used. */ - if (buf != buf_max) - { - stream->msg = "address bytes not used"; - return XD3_INTERNAL; - } - - for (i = 0; i < (2 + stream->acache.s_same + stream->acache.s_near); i += 1) - { - if (mode_counts[i] == 0) - { - stream->msg = "address mode not used"; - return XD3_INTERNAL; - } - } - - xd3_free (stream, modes); - xd3_free (stream, addrs); - xd3_free (stream, big_buf); - - return 0; -} - -/*********************************************************************** - Encode and decode with single bit error - ***********************************************************************/ - -/* It compresses from 256 to around 185 bytes. - * Avoids matching addresses that are a single-bit difference. - * Avoids matching address 0. */ -static const uint8_t test_text[] = -"this is a story\n" -"abouttttttttttt\n" -"- his is a stor\n" -"- about nothing " -" all. boutique -" -"his story is a -" -"about " -"what happens all" -" the time what -" -"am I ttttttt the" -" person said, so" -" what, per son -" -" gory story is -" -" about nothing -" -"tttttt to test -" -"his sto nothing"; - -static const uint8_t test_apphead[] = "header test"; - -static int -test_compress_text (xd3_stream *stream, - uint8_t *encoded, - usize_t *encoded_size) -{ - int ret; - xd3_config cfg; - int oflags = stream->flags; - int flags = stream->flags | XD3_FLUSH; - - xd3_free_stream (stream); - xd3_init_config (& cfg, flags); - - /* This configuration is fixed so that the "expected non-error" the counts in - * decompress_single_bit_errors are too. See test_coftcfg_str. */ - cfg.smatch_cfg = XD3_SMATCH_SOFT; - cfg.smatcher_soft.name = "test"; - cfg.smatcher_soft.large_look = 64; /* no source, not used */ - cfg.smatcher_soft.large_step = 64; /* no source, not used */ - cfg.smatcher_soft.small_look = 4; - cfg.smatcher_soft.small_chain = 128; - cfg.smatcher_soft.small_lchain = 16; - cfg.smatcher_soft.max_lazy = 8; - cfg.smatcher_soft.long_enough = 128; - - xd3_config_stream (stream, & cfg); - - (*encoded_size) = 0; - - xd3_set_appheader (stream, test_apphead, - (usize_t) strlen ((char*) test_apphead)); - - if ((ret = xd3_encode_stream (stream, test_text, sizeof (test_text), - encoded, encoded_size, 4*sizeof (test_text)))) { goto fail; } - - if ((ret = xd3_close_stream (stream))) { goto fail; } - - fail: - xd3_free_stream (stream); - xd3_init_config (& cfg, oflags); - xd3_config_stream (stream, & cfg); - return ret; -} - -static int -test_decompress_text (xd3_stream *stream, uint8_t *enc, usize_t enc_size, usize_t test_desize) -{ - xd3_config cfg; - char decoded[sizeof (test_text)]; - uint8_t *apphead; - usize_t apphead_size; - usize_t decoded_size; - const char *msg; - int ret; - usize_t pos = 0; - int flags = stream->flags; - usize_t take; - - input: - /* Test decoding test_desize input bytes at a time */ - take = xd3_min (enc_size - pos, test_desize); - CHECK(take > 0); - - xd3_avail_input (stream, enc + pos, take); - again: - ret = xd3_decode_input (stream); - - pos += take; - take = 0; - - switch (ret) - { - case XD3_OUTPUT: - break; - case XD3_WINSTART: - case XD3_GOTHEADER: - goto again; - case XD3_INPUT: - if (pos < enc_size) { goto input; } - /* else fallthrough */ - case XD3_WINFINISH: - default: - goto fail; - } - - CHECK(ret == XD3_OUTPUT); - CHECK(pos == enc_size); - - if (stream->avail_out != sizeof (test_text)) - { - stream->msg = "incorrect output size"; - ret = XD3_INTERNAL; - goto fail; - } - - decoded_size = stream->avail_out; - memcpy (decoded, stream->next_out, stream->avail_out); - - xd3_consume_output (stream); - - if ((ret = xd3_get_appheader (stream, & apphead, & apphead_size))) { goto fail; } - - if (apphead_size != strlen ((char*) test_apphead) || - memcmp (apphead, test_apphead, strlen ((char*) test_apphead)) != 0) - { - stream->msg = "incorrect appheader"; - ret = XD3_INTERNAL; - goto fail; - } - - if ((ret = xd3_decode_input (stream)) != XD3_WINFINISH || - (ret = xd3_close_stream (stream)) != 0) - { - goto fail; - } - - if (decoded_size != sizeof (test_text) || - memcmp (decoded, test_text, sizeof (test_text)) != 0) - { - stream->msg = "incorrect output text"; - ret = EIO; - } - - fail: - msg = stream->msg; - xd3_free_stream (stream); - xd3_init_config (& cfg, flags); - xd3_config_stream (stream, & cfg); - stream->msg = msg; - - return ret; -} - -static int -test_decompress_single_bit_error (xd3_stream *stream, int expected_non_failures) -{ - int ret; - usize_t i; - uint8_t encoded[4*sizeof (test_text)]; /* make room for alt code table */ - usize_t encoded_size; - int non_failures = 0; - int cksum = (stream->flags & XD3_ADLER32) != 0; - -//#define DEBUG_TEST_FAILURES -#ifndef DEBUG_TEST_FAILURES -#define TEST_FAILURES() -#else - /* For checking non-failure cases by hand, enable this macro and run - * xdelta printdelta with print_cpymode disabled. Every non-failure - * should change a copy address mode, which doesn't cause a failure - * because the address cache starts out with all zeros. - - ./xdelta3 test - for i in test_text.xz.*; do ./xdelta3 printdelta $i > $i.out; - diff $i.out test_text.xz.0.out; done - - */ - system ("rm -rf test_text.*"); - { - char buf[TESTBUFSIZE]; - FILE *f; - snprintf_func (buf, TESTBUFSIZE, "test_text"); - f = fopen (buf, "w"); - fwrite (test_text,1,sizeof (test_text),f); - fclose (f); - } -#define TEST_FAILURES() \ - do { \ - char buf[TESTBUFSIZE]; \ - FILE *f; \ - snprintf_func (buf, TESTBUFSIZE, "test_text.xz.%d", non_failures); \ - f = fopen (buf, "w"); \ - fwrite (encoded,1,encoded_size,f); \ - fclose (f); \ - } while (0) -#endif - - stream->sec_data.inefficient = 1; - stream->sec_inst.inefficient = 1; - stream->sec_addr.inefficient = 1; - - /* Encode text, test correct input */ - if ((ret = test_compress_text (stream, encoded, & encoded_size))) - { - /*stream->msg = "without error: encode failure";*/ - return ret; - } - - if ((ret = test_decompress_text (stream, encoded, encoded_size, - sizeof (test_text) / 4))) - { - /*stream->msg = "without error: decode failure";*/ - return ret; - } - - TEST_FAILURES(); - - for (i = 0; i < encoded_size*8; i += 1) - { - /* Single bit error. */ - encoded[i/8] ^= 1 << (i%8); - - if ((ret = test_decompress_text (stream, encoded, - encoded_size, sizeof (test_text))) == 0) - { - non_failures += 1; -#ifdef DEBUG_TEST_FAILURES - XPR(NT "%u[%u] non-failure %u\n", i/8, i%8, non_failures); -#endif - TEST_FAILURES(); - } - else - { - /*XPR(NT "%u[%u] failure: %s\n", i/8, i%8, stream->msg);*/ - } - - /* decompress_text returns EIO when the final memcmp() fails, but that - * should never happen with checksumming on. */ - if (cksum && ret == EIO) - { - /*XPR(NT "%u[%u] cksum mismatch\n", i/8, i%8);*/ - stream->msg = "checksum mismatch"; - return XD3_INTERNAL; - } - - /* Undo single bit error. */ - encoded[i/8] ^= 1 << (i%8); - } - - /* Test correct input again */ - if ((ret = test_decompress_text (stream, encoded, encoded_size, 1))) - { - /*stream->msg = "without error: decode failure";*/ - return ret; - } - - /* Check expected non-failures */ - if (non_failures > expected_non_failures) - { - XPR(NT "non-failures %u > expected %u", - non_failures, expected_non_failures); - stream->msg = "incorrect"; - return XD3_INTERNAL; - } - - DOT (); - - return 0; -} - -/*********************************************************************** - Secondary compression tests - ***********************************************************************/ - -#if SECONDARY_ANY -typedef int (*sec_dist_func) (xd3_stream *stream, xd3_output *data); - -static int sec_dist_func1 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func2 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func3 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func4 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func5 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func6 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func7 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func8 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func9 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func10 (xd3_stream *stream, xd3_output *data); -static int sec_dist_func11 (xd3_stream *stream, xd3_output *data); - -static sec_dist_func sec_dists[] = -{ - sec_dist_func1, - sec_dist_func2, - sec_dist_func3, - sec_dist_func4, - sec_dist_func5, - sec_dist_func6, - sec_dist_func7, - sec_dist_func8, - sec_dist_func9, - sec_dist_func10, - sec_dist_func11, -}; - -/* Test ditsribution: 100 bytes of the same character (13). */ -static int -sec_dist_func1 (xd3_stream *stream, xd3_output *data) -{ - int i, ret; - for (i = 0; i < 100; i += 1) - { - if ((ret = xd3_emit_byte (stream, & data, 13))) { return ret; } - } - return 0; -} - -/* Test ditsribution: uniform covering half the alphabet. */ -static int -sec_dist_func2 (xd3_stream *stream, xd3_output *data) -{ - int i, ret; - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - if ((ret = xd3_emit_byte (stream, & data, i%(ALPHABET_SIZE/2)))) { return ret; } - } - return 0; -} - -/* Test ditsribution: uniform covering the entire alphabet. */ -static int -sec_dist_func3 (xd3_stream *stream, xd3_output *data) -{ - int i, ret; - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - if ((ret = xd3_emit_byte (stream, & data, i%ALPHABET_SIZE))) { return ret; } - } - return 0; -} - -/* Test distribution: An exponential distribution covering half the alphabet */ -static int -sec_dist_func4 (xd3_stream *stream, xd3_output *data) -{ - int i, ret, x; - for (i = 0; i < ALPHABET_SIZE*20; i += 1) - { - x = mt_exp_rand (10, ALPHABET_SIZE/2); - if ((ret = xd3_emit_byte (stream, & data, x))) { return ret; } - } - return 0; -} - -/* Test distribution: An exponential distribution covering the entire alphabet */ -static int -sec_dist_func5 (xd3_stream *stream, xd3_output *data) -{ - int i, ret, x; - for (i = 0; i < ALPHABET_SIZE*20; i += 1) - { - x = mt_exp_rand (10, ALPHABET_SIZE-1); - if ((ret = xd3_emit_byte (stream, & data, x))) { return ret; } - } - return 0; -} - -/* Test distribution: An uniform random distribution covering half the alphabet */ -static int -sec_dist_func6 (xd3_stream *stream, xd3_output *data) -{ - int i, ret, x; - for (i = 0; i < ALPHABET_SIZE*20; i += 1) - { - x = mt_random (&static_mtrand) % (ALPHABET_SIZE/2); - if ((ret = xd3_emit_byte (stream, & data, x))) { return ret; } - } - return 0; -} - -/* Test distribution: An uniform random distribution covering the entire alphabet */ -static int -sec_dist_func7 (xd3_stream *stream, xd3_output *data) -{ - int i, ret, x; - for (i = 0; i < ALPHABET_SIZE*200; i += 1) - { - x = mt_random (&static_mtrand) % ALPHABET_SIZE; - if ((ret = xd3_emit_byte (stream, & data, x))) { return ret; } - } - return 0; -} - -/* Test distribution: A small number of frequent characters, difficult - * to divide into many groups */ -static int -sec_dist_func8 (xd3_stream *stream, xd3_output *data) -{ - int i, ret; - for (i = 0; i < ALPHABET_SIZE*5; i += 1) - { - if ((ret = xd3_emit_byte (stream, & data, 0))) { return ret; } - if ((ret = xd3_emit_byte (stream, & data, 64))) { return ret; } - if ((ret = xd3_emit_byte (stream, & data, 128))) { return ret; } - if ((ret = xd3_emit_byte (stream, & data, 255))) { return ret; } - } - return 0; -} - -/* Test distribution: One that causes many FGK block promotions (found a bug) */ -static int -sec_dist_func9 (xd3_stream *stream, xd3_output *data) -{ - int i, ret; - - int ramp = 0; - int rcount = 0; - int prom = 0; - int pcount = 0; - - /* 200 was long enough to trigger it--only when stricter checking - * that counted all blocks was turned on, but it seems I deleted - * this code. (missing fgk_free_block on line 398). */ - for (i = 0; i < ALPHABET_SIZE*200; i += 1) - { - repeat: - if (ramp < ALPHABET_SIZE) - { - /* Initially Nth symbol has (N+1) frequency */ - if (rcount <= ramp) - { - rcount += 1; - if ((ret = xd3_emit_byte (stream, & data, ramp))) { return ret; } - continue; - } - - ramp += 1; - rcount = 0; - goto repeat; - } - - /* Thereafter, promote least freq to max freq */ - if (pcount == ALPHABET_SIZE) - { - pcount = 0; - prom = (prom + 1) % ALPHABET_SIZE; - } - - pcount += 1; - if ((ret = xd3_emit_byte (stream, & data, prom))) { return ret; } - } - - return 0; -} - -/* Test distribution: freq[i] == i*i, creates a 21-bit code length, fixed in 3.0r. */ -static int -sec_dist_func10 (xd3_stream *stream, xd3_output *data) -{ - int i, j, ret; - for (i = 0; i < ALPHABET_SIZE; i += 1) - { - for (j = 0; j <= (i*i); j += 1) - { - if ((ret = xd3_emit_byte (stream, & data, i))) { return ret; } - } - } - return 0; -} - -/* Test distribution: fibonacci */ -static int -sec_dist_func11 (xd3_stream *stream, xd3_output *data) -{ - int sum0 = 0; - int sum1 = 1; - int i, j, ret; - for (i = 0; i < 33; ++i) - { - for (j = 0; j < (sum0 + sum1); ++j) - { - if ((ret = xd3_emit_byte (stream, & data, i))) { return ret; } - } - sum0 = sum1; - sum1 = j; - } - return 0; -} - -static int -test_secondary_decode (xd3_stream *stream, - const xd3_sec_type *sec, - usize_t input_size, - usize_t compress_size, - const uint8_t *dec_input, - const uint8_t *dec_correct, - uint8_t *dec_output) -{ - int ret; - xd3_sec_stream *dec_stream; - const uint8_t *dec_input_used, *dec_input_end; - uint8_t *dec_output_used, *dec_output_end; - - if ((dec_stream = sec->alloc (stream)) == NULL) { return ENOMEM; } - - if ((ret = sec->init (stream, dec_stream, 0)) != 0) { goto fail; } - - dec_input_used = dec_input; - dec_input_end = dec_input + compress_size; - - dec_output_used = dec_output; - dec_output_end = dec_output + input_size; - - if ((ret = sec->decode (stream, dec_stream, - & dec_input_used, dec_input_end, - & dec_output_used, dec_output_end))) - { - goto fail; - } - - if (dec_input_used != dec_input_end) - { - stream->msg = "unused input"; - ret = XD3_INTERNAL; - goto fail; - } - - if (dec_output_used != dec_output_end) - { - stream->msg = "unfinished output"; - ret = XD3_INTERNAL; - goto fail; - } - - if (memcmp (dec_output, dec_correct, input_size) != 0) - { - stream->msg = "incorrect output"; - ret = XD3_INTERNAL; - goto fail; - } - - fail: - sec->destroy (stream, dec_stream); - return ret; -} - -static int -test_secondary (xd3_stream *stream, const xd3_sec_type *sec, usize_t groups) -{ - usize_t test_i; - int ret; - xd3_output *in_head, *out_head, *p; - usize_t p_off, input_size, compress_size; - uint8_t *dec_input = NULL, *dec_output = NULL, *dec_correct = NULL; - xd3_sec_stream *enc_stream; - xd3_sec_cfg cfg; - - memset (& cfg, 0, sizeof (cfg)); - - cfg.inefficient = 1; - - for (cfg.ngroups = 1; cfg.ngroups <= groups; cfg.ngroups += 1) - { - XPR(NTR "\n..."); - for (test_i = 0; test_i < SIZEOF_ARRAY (sec_dists); test_i += 1) - { - mt_init (& static_mtrand, 0x9f73f7fc); - - in_head = xd3_alloc_output (stream, NULL); - out_head = xd3_alloc_output (stream, NULL); - enc_stream = sec->alloc (stream); - dec_input = NULL; - dec_output = NULL; - dec_correct = NULL; - - if (in_head == NULL || out_head == NULL || enc_stream == NULL) - { - goto nomem; - } - - if ((ret = sec_dists[test_i] (stream, in_head))) { goto fail; } - - if ((ret = sec->init (stream, enc_stream, 1)) != 0) { goto fail; } - - /* Encode data */ - if ((ret = sec->encode (stream, enc_stream, - in_head, out_head, & cfg))) - { - XPR(NT "test %u: encode: %s", test_i, stream->msg); - goto fail; - } - - /* Calculate sizes, allocate contiguous arrays for decoding */ - input_size = xd3_sizeof_output (in_head); - compress_size = xd3_sizeof_output (out_head); - - XPR(NTR "%.3f", 8.0 * (double) compress_size / (double) input_size); - - if ((dec_input = (uint8_t*) xd3_alloc (stream, compress_size, 1)) == NULL || - (dec_output = (uint8_t*) xd3_alloc (stream, input_size, 1)) == NULL || - (dec_correct = (uint8_t*) xd3_alloc (stream, input_size, 1)) == NULL) - { - goto nomem; - } - - /* Fill the compressed data array */ - for (p_off = 0, p = out_head; p != NULL; - p_off += p->next, p = p->next_page) - { - memcpy (dec_input + p_off, p->base, p->next); - } - - CHECK(p_off == compress_size); - - /* Fill the input data array */ - for (p_off = 0, p = in_head; p != NULL; - p_off += p->next, p = p->next_page) - { - memcpy (dec_correct + p_off, p->base, p->next); - } - - CHECK(p_off == input_size); - - if ((ret = test_secondary_decode (stream, sec, input_size, - compress_size, dec_input, - dec_correct, dec_output))) - { - XPR(NT "test %u: decode: %s", test_i, stream->msg); - goto fail; - } - - /* Single-bit error test, only cover the first 10 bytes. - * Some non-failures are expected in the Huffman case: - * Changing the clclen array, for example, may not harm the - * decoding. Really looking for faults here. */ - { - int i; - int bytes = xd3_min (compress_size, 10U); - for (i = 0; i < bytes * 8; i += 1) - { - dec_input[i/8] ^= 1 << (i%8); - - if ((ret = test_secondary_decode (stream, sec, input_size, - compress_size, dec_input, - dec_correct, dec_output)) - == 0) - { - /*XPR(NT "test %u: decode single-bit [%u/%u] - error non-failure", test_i, i/8, i%8);*/ - } - - dec_input[i/8] ^= 1 << (i%8); - - if ((i % (2*bytes)) == (2*bytes)-1) - { - DOT (); - } - } - ret = 0; - } - - if (0) { nomem: ret = ENOMEM; } - - fail: - sec->destroy (stream, enc_stream); - xd3_free_output (stream, in_head); - xd3_free_output (stream, out_head); - xd3_free (stream, dec_input); - xd3_free (stream, dec_output); - xd3_free (stream, dec_correct); - - if (ret != 0) { return ret; } - } - } - - return 0; -} - -IF_FGK (static int test_secondary_fgk (xd3_stream *stream, usize_t gp) - { return test_secondary (stream, & fgk_sec_type, gp); }) -IF_DJW (static int test_secondary_huff (xd3_stream *stream, usize_t gp) - { return test_secondary (stream, & djw_sec_type, gp); }) -IF_LZMA (static int test_secondary_lzma (xd3_stream *stream, usize_t gp) - { return test_secondary (stream, & lzma_sec_type, gp); }) - -#endif /* SECONDARY_ANY */ - -/*********************************************************************** - TEST INSTRUCTION TABLE - ***********************************************************************/ - -/* Test that xd3_choose_instruction() does the right thing for its code - * table. */ -static int -test_choose_instruction (xd3_stream *stream, int ignore) -{ - int i; - - stream->code_table = (*stream->code_table_func) (); - - for (i = 0; i < 256; i += 1) - { - const xd3_dinst *d = stream->code_table + i; - xd3_rinst prev, inst; - - CHECK(d->type1 > 0); - - memset (& prev, 0, sizeof (prev)); - memset (& inst, 0, sizeof (inst)); - - if (d->type2 == 0) - { - inst.type = d->type1; - - if ((inst.size = d->size1) == 0) - { - inst.size = TESTBUFSIZE; - } - - XD3_CHOOSE_INSTRUCTION (stream, NULL, & inst); - - if (inst.code2 != 0 || inst.code1 != i) - { - stream->msg = "wrong single instruction"; - return XD3_INTERNAL; - } - } - else - { - prev.type = d->type1; - prev.size = d->size1; - inst.type = d->type2; - inst.size = d->size2; - - XD3_CHOOSE_INSTRUCTION (stream, & prev, & inst); - - if (prev.code2 != i) - { - stream->msg = "wrong double instruction"; - return XD3_INTERNAL; - } - } - } - - return 0; -} - -/*********************************************************************** - 64BIT STREAMING - ***********************************************************************/ - -/* This test encodes and decodes a series of 1 megabyte windows, each - * containing a long run of zeros along with a single xoff_t size - * record to indicate the sequence. */ -static int -test_streaming (xd3_stream *in_stream, uint8_t *encbuf, uint8_t *decbuf, uint8_t *delbuf, usize_t megs) -{ - xd3_stream estream, dstream; - int ret; - usize_t i, delsize, decsize; - xd3_config cfg; - xd3_init_config (& cfg, in_stream->flags); - cfg.flags |= XD3_COMPLEVEL_6; - - if ((ret = xd3_config_stream (& estream, & cfg)) || - (ret = xd3_config_stream (& dstream, & cfg))) - { - goto fail; - } - - for (i = 0; i < megs; i += 1) - { - ((usize_t*) encbuf)[0] = i; - - if ((i % 200) == 199) { DOT (); } - - if ((ret = xd3_process_stream (1, & estream, xd3_encode_input, 0, - encbuf, 1 << 20, - delbuf, & delsize, 1 << 20))) - { - in_stream->msg = estream.msg; - goto fail; - } - - if ((ret = xd3_process_stream (0, & dstream, xd3_decode_input, 0, - delbuf, delsize, - decbuf, & decsize, 1 << 20))) - { - in_stream->msg = dstream.msg; - goto fail; - } - - if (decsize != 1 << 20 || - memcmp (encbuf, decbuf, 1 << 20) != 0) - { - in_stream->msg = "wrong result"; - ret = XD3_INTERNAL; - goto fail; - } - } - - if ((ret = xd3_close_stream (& estream)) || - (ret = xd3_close_stream (& dstream))) - { - goto fail; - } - - fail: - xd3_free_stream (& estream); - xd3_free_stream (& dstream); - return ret; -} - -/* Run tests of data streaming of over and around 4GB of data. */ -static int -test_compressed_stream_overflow (xd3_stream *stream, int ignore) -{ - int ret; - int i; - uint8_t *buf; - - if ((buf = (uint8_t*) malloc (TWO_MEGS_AND_DELTA)) == NULL) { return ENOMEM; } - - memset (buf, 0, TWO_MEGS_AND_DELTA); - for (i = 0; i < (2 << 20); i += 256) - { - int j; - int off = mt_random(& static_mtrand) % 10; - for (j = 0; j < 256; j++) - { - buf[i + j] = j + off; - } - } - - /* Test overflow of a 32-bit file offset. */ - if (SIZEOF_XOFF_T == 4) - { - ret = test_streaming (stream, buf, buf + (1 << 20), buf + (2 << 20), (1 << 12) + 1); - - if (ret == XD3_INVALID_INPUT && MSG_IS ("decoder file offset overflow")) - { - ret = 0; - } - else - { - XPR(NT XD3_LIB_ERRMSG (stream, ret)); - stream->msg = "expected overflow condition"; - ret = XD3_INTERNAL; - goto fail; - } - } - - /* Test transfer of exactly 32bits worth of data. */ - if ((ret = test_streaming (stream, - buf, - buf + (1 << 20), - buf + (2 << 20), - 1 << 12))) - { - goto fail; - } - fail: - free (buf); - return ret; -} - -/*********************************************************************** - COMMAND LINE - ***********************************************************************/ - -#if SHELL_TESTS - -/* For each pair of command templates in the array below, test that - * encoding and decoding commands work. Also check for the expected - * size delta, which should be approximately TEST_ADD_RATIO times the - * file size created by test_make_inputs. Due to differences in the - * application header, it is suppressed (-A) so that all delta files - * are the same. */ -static int -test_command_line_arguments (xd3_stream *stream, int ignore) -{ - int i, ret; - - static const char* cmdpairs[] = - { - /* standard input, output */ - "%s %s -A < %s > %s", "%s -d < %s > %s", - "%s %s -A -e < %s > %s", "%s -d < %s > %s", - "%s %s -A= encode < %s > %s", "%s decode < %s > %s", - "%s %s -A -q encode < %s > %s", "%s -qdq < %s > %s", - - /* file input, standard output */ - "%s %s -A= %s > %s", "%s -d %s > %s", - "%s %s -A -e %s > %s", "%s -d %s > %s", - "%s %s encode -A= %s > %s", "%s decode %s > %s", - - /* file input, output */ - "%s %s -A= %s %s", "%s -d %s %s", - "%s %s -A -e %s %s", "%s -d %s %s", - "%s %s -A= encode %s %s", "%s decode %s %s", - - /* option placement */ - "%s %s -A -f %s %s", "%s -f -d %s %s", - "%s %s -e -A= %s %s", "%s -d -f %s %s", - "%s %s -f encode -A= %s %s", "%s -f decode -f %s %s", - }; - - char ecmd[TESTBUFSIZE], dcmd[TESTBUFSIZE]; - int pairs = SIZEOF_ARRAY (cmdpairs) / 2; - xoff_t tsize; - xoff_t dsize; - double ratio; - - mt_init (& static_mtrand, 0x9f73f7fc); - - for (i = 0; i < pairs; i += 1) - { - test_setup (); - if ((ret = test_make_inputs (stream, NULL, & tsize))) { return ret; } - - snprintf_func (ecmd, TESTBUFSIZE, cmdpairs[2*i], program_name, - test_softcfg_str, TEST_TARGET_FILE, TEST_DELTA_FILE); - snprintf_func (dcmd, TESTBUFSIZE, cmdpairs[2*i+1], program_name, - TEST_DELTA_FILE, TEST_RECON_FILE); - - /* Encode and decode. */ - if ((ret = system (ecmd)) != 0) - { - XPR(NT "encode command: %s\n", ecmd); - stream->msg = "encode cmd failed"; - return XD3_INTERNAL; - } - - if ((ret = system (dcmd)) != 0) - { - XPR(NT "decode command: %s\n", dcmd); - stream->msg = "decode cmd failed"; - return XD3_INTERNAL; - } - - /* Compare the target file. */ - if ((ret = test_compare_files (TEST_TARGET_FILE, TEST_RECON_FILE))) - { - return ret; - } - - if ((ret = test_file_size (TEST_DELTA_FILE, & dsize))) - { - return ret; - } - - ratio = (double) dsize / (double) tsize; - - /* Check that it is not too small, not too large. */ - if (ratio >= TEST_ADD_RATIO + TEST_EPSILON) - { - XPR(NT "test encode with size ratio %.4f, " - "expected < %.4f (%"Q"u, %"Q"u)\n", - ratio, TEST_ADD_RATIO + TEST_EPSILON, dsize, tsize); - stream->msg = "strange encoding"; - return XD3_INTERNAL; - } - - if (ratio <= TEST_ADD_RATIO * (1.0 - 2 * TEST_EPSILON)) - { - XPR(NT "test encode with size ratio %.4f, " - "expected > %.4f\n", - ratio, TEST_ADD_RATIO - TEST_EPSILON); - stream->msg = "strange encoding"; - return XD3_INTERNAL; - } - - /* Also check that test_compare_files works. The delta and original should - * not be identical. */ - if ((ret = test_compare_files (TEST_DELTA_FILE, - TEST_TARGET_FILE)) == 0) - { - stream->msg = "broken test_compare_files"; - return XD3_INTERNAL; - } - - test_cleanup (); - DOT (); - } - - return 0; -} - -static int -check_vcdiff_header (xd3_stream *stream, - const char *input, - const char *line_start, - const char *matches, - int yes_or_no) -{ - int ret; - char vcmd[TESTBUFSIZE], gcmd[TESTBUFSIZE]; - - snprintf_func (vcmd, TESTBUFSIZE, "%s printhdr -f %s %s", - program_name, input, TEST_RECON2_FILE); - - if ((ret = system (vcmd)) != 0) - { - XPR(NT "printhdr command: %s\n", vcmd); - stream->msg = "printhdr cmd failed"; - return XD3_INTERNAL; - } - - snprintf_func (gcmd, TESTBUFSIZE, "grep \"%s.*%s.*\" %s > /dev/null", - line_start, matches, TEST_RECON2_FILE); - - if (yes_or_no) - { - if ((ret = do_cmd (stream, gcmd))) - { - XPR(NT "%s\n", gcmd); - return ret; - } - } - else - { - if ((ret = do_fail (stream, gcmd))) - { - XPR(NT "%s\n", gcmd); - return ret; - } - } - - return 0; -} - -static int -test_recode_command2 (xd3_stream *stream, int has_source, - int variant, int change) -{ - int has_adler32 = (variant & 0x1) != 0; - int has_apphead = (variant & 0x2) != 0; - int has_secondary = (variant & 0x4) != 0; - - int change_adler32 = (change & 0x1) != 0; - int change_apphead = (change & 0x2) != 0; - int change_secondary = (change & 0x4) != 0; - - int recoded_adler32 = change_adler32 ? !has_adler32 : has_adler32; - int recoded_apphead = change_apphead ? !has_apphead : has_apphead; - int recoded_secondary = change_secondary ? !has_secondary : has_secondary; - - char ecmd[TESTBUFSIZE], recmd[TESTBUFSIZE], dcmd[TESTBUFSIZE]; - xoff_t tsize, ssize; - int ret; - - test_setup (); - - if ((ret = test_make_inputs (stream, has_source ? & ssize : NULL, & tsize))) - { - return ret; - } - - /* First encode */ - snprintf_func (ecmd, TESTBUFSIZE, "%s %s -f %s %s %s %s %s %s %s", - program_name, test_softcfg_str, - has_adler32 ? "" : "-n ", - has_apphead ? "-A=encode_apphead " : "-A= ", - has_secondary ? "-S djw " : "-S none ", - has_source ? "-s " : "", - has_source ? TEST_SOURCE_FILE : "", - TEST_TARGET_FILE, - TEST_DELTA_FILE); - - if ((ret = system (ecmd)) != 0) - { - XPR(NT "encode command: %s\n", ecmd); - stream->msg = "encode cmd failed"; - return XD3_INTERNAL; - } - - /* Now recode */ - snprintf_func (recmd, TESTBUFSIZE, - "%s recode %s -f %s %s %s %s %s", program_name, test_softcfg_str, - recoded_adler32 ? "" : "-n ", - !change_apphead ? "" : - (recoded_apphead ? "-A=recode_apphead " : "-A= "), - recoded_secondary ? "-S djw " : "-S= ", - TEST_DELTA_FILE, - TEST_COPY_FILE); - - if ((ret = system (recmd)) != 0) - { - XPR(NT "recode command: %s\n", recmd); - stream->msg = "recode cmd failed"; - return XD3_INTERNAL; - } - - /* Check recode changes. */ - - if ((ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF window indicator", - "VCD_SOURCE", - has_source))) { return ret; } - - if ((ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF header indicator", - "VCD_SECONDARY", - recoded_secondary))) { return ret; } - - if ((ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF window indicator", - "VCD_ADLER32", - /* Recode can't generate an adler32 - * checksum, it can only preserve it or - * remove it. */ - has_adler32 && recoded_adler32))) - { - return ret; - } - - if (!change_apphead) - { - if ((ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF header indicator", - "VCD_APPHEADER", - has_apphead))) - { - return ret; - } - if ((ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF application header", - "encode_apphead", - has_apphead))) - { - return ret; - } - } - else - { - if ((ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF header indicator", - "VCD_APPHEADER", - recoded_apphead))) - { - return ret; - } - if (recoded_apphead && - (ret = check_vcdiff_header (stream, - TEST_COPY_FILE, - "VCDIFF application header", - "recode_apphead", - 1))) - { - return ret; - } - } - - /* Now decode */ - snprintf_func (dcmd, TESTBUFSIZE, "%s -fd %s %s %s %s ", program_name, - has_source ? "-s " : "", - has_source ? TEST_SOURCE_FILE : "", - TEST_COPY_FILE, - TEST_RECON_FILE); - - if ((ret = system (dcmd)) != 0) - { - XPR(NT "decode command: %s\n", dcmd); - stream->msg = "decode cmd failed"; - return XD3_INTERNAL; - } - - /* Now compare. */ - if ((ret = test_compare_files (TEST_TARGET_FILE, TEST_RECON_FILE))) - { - return ret; - } - test_cleanup (); - - return 0; -} - -static int -test_recode_command (xd3_stream *stream, int ignore) -{ - /* Things to test: - * - with and without a source file (recode does not change) - * - * (recode may or may not change -- 8 variations) - * - with and without adler32 - * - with and without app header - * - with and without secondary - */ - int has_source; - int variant; - int change; - int ret; - - for (has_source = 0; has_source < 2; has_source++) - { - for (variant = 0; variant < 8; variant++) - { - for (change = 0; change < 8; change++) - { - if ((ret = test_recode_command2 (stream, has_source, - variant, change))) - { - return ret; - } - } - DOT (); - } - } - - return 0; -} - -#if SECONDARY_LZMA -int test_secondary_lzma_default (xd3_stream *stream, int ignore) -{ - char ecmd[TESTBUFSIZE]; - int ret; - - test_setup (); - - if ((ret = test_make_inputs (stream, NULL, NULL))) - { - return ret; - } - - /* First encode */ - snprintf_func (ecmd, TESTBUFSIZE, "%s -e %s %s", - program_name, - TEST_TARGET_FILE, - TEST_DELTA_FILE); - - if ((ret = system (ecmd)) != 0) - { - return XD3_INTERNAL; - } - - if ((ret = check_vcdiff_header (stream, - TEST_DELTA_FILE, - "VCDIFF secondary compressor", - "lzma", - 1))) - { - return ret; - } - - test_cleanup (); - return 0; -} - -#endif /* SECONDARY_LZMA */ -#endif /* SHELL_TESTS */ - -/*********************************************************************** - EXTERNAL I/O DECOMPRESSION/RECOMPRESSION - ***********************************************************************/ - -#if EXTERNAL_COMPRESSION -/* This performs one step of the test_externally_compressed_io - * function described below. It builds a pipe containing both Xdelta - * and external compression/decompression that should not modify the - * data passing through. */ -static int -test_compressed_pipe (xd3_stream *stream, main_extcomp *ext, char* buf, - const char* comp_options, const char* decomp_options, - int do_ext_recomp, const char* msg) -{ - int ret; - char decomp_buf[TESTBUFSIZE]; - - if (do_ext_recomp) - { - snprintf_func (decomp_buf, TESTBUFSIZE, - " | %s %s", ext->decomp_cmdname, ext->decomp_options); - } - else - { - decomp_buf[0] = 0; - } - - snprintf_func (buf, TESTBUFSIZE, "%s %s < %s | %s %s | %s %s%s > %s", - ext->recomp_cmdname, ext->recomp_options, - TEST_TARGET_FILE, - program_name, comp_options, - program_name, decomp_options, - decomp_buf, - TEST_RECON_FILE); - - if ((ret = system (buf)) != 0) - { - stream->msg = msg; - return XD3_INTERNAL; - } - - if ((ret = test_compare_files (TEST_TARGET_FILE, TEST_RECON_FILE))) - { - return XD3_INTERNAL; - } - - DOT (); - return 0; -} - -/* We want to test that a pipe such as: - * - * --> | gzip -cf | xdelta3 -cf | xdelta3 -dcf | gzip -dcf | --> - * - * is transparent, i.e., does not modify the stream of data. However, - * we also want to verify that at the center the data is properly - * compressed, i.e., that we do not just have a re-compressed gzip - * format, that we have an VCDIFF format. We do this in two steps. - * First test the above pipe, then test with suppressed output - * recompression (-D). The result should be the original input: - * - * --> | gzip -cf | xdelta3 -cf | xdelta3 -Ddcf | --> - * - * Finally we want to test that -D also disables input decompression: - * - * --> | gzip -cf | xdelta3 -Dcf | xdelta3 -Ddcf | gzip -dcf | --> - */ -static int -test_externally_compressed_io (xd3_stream *stream, int ignore) -{ - usize_t i; - int ret; - char buf[TESTBUFSIZE]; - - mt_init (& static_mtrand, 0x9f73f7fc); - - if ((ret = test_make_inputs (stream, NULL, NULL))) { return ret; } - - for (i = 0; i < SIZEOF_ARRAY (extcomp_types); i += 1) - { - main_extcomp *ext = & extcomp_types[i]; - - /* Test for the existence of the external command first, if not skip. */ - snprintf_func (buf, TESTBUFSIZE, "%s %s < /dev/null > /dev/null", ext->recomp_cmdname, ext->recomp_options); - - if ((ret = system (buf)) != 0) - { - XPR(NT "%s=0", ext->recomp_cmdname); - continue; - } - - if ((ret = test_compressed_pipe (stream, ext, buf, "-cfq", "-dcfq", 1, - "compression failed: identity pipe")) || - (ret = test_compressed_pipe (stream, ext, buf, "-cfq", "-Rdcfq", 0, - "compression failed: without recompression")) || - (ret = test_compressed_pipe (stream, ext, buf, "-Dcfq", "-Rdcfq", 1, - "compression failed: without decompression"))) - { - return ret; - } - } - - return 0; -} - -/* This tests the proper functioning of external decompression for - * source files. The source and target files are identical and - * compressed by gzip. Decoding such a delta with recompression - * disbaled (-R) should produce the original, uncompressed - * source/target file. Then it checks with output recompression - * enabled--in this case the output should be a compressed copy of the - * original source/target file. Then it checks that encoding with - * decompression disabled works--the compressed files are identical - * and decoding them should always produce a compressed output, - * regardless of -R since the encoded delta file had decompression - * disabled.. - */ -static int -test_source_decompression (xd3_stream *stream, int ignore) -{ - int ret; - char buf[TESTBUFSIZE]; - const main_extcomp *ext; - xoff_t dsize; - - mt_init (& static_mtrand, 0x9f73f7fc); - - test_setup (); - if ((ret = test_make_inputs (stream, NULL, NULL))) { return ret; } - - /* Use gzip. */ - if ((ext = main_get_compressor ("G")) == NULL) - { - XPR(NT "skipped"); - return 0; - } - - /* Save an uncompressed copy. */ - if ((ret = test_save_copy (TEST_TARGET_FILE))) { return ret; } - - /* Compress the source. */ - snprintf_func (buf, TESTBUFSIZE, "%s -1 %s < %s > %s", ext->recomp_cmdname, - ext->recomp_options, TEST_COPY_FILE, TEST_SOURCE_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - /* Compress the target. */ - snprintf_func (buf, TESTBUFSIZE, "%s -9 %s < %s > %s", ext->recomp_cmdname, - ext->recomp_options, TEST_COPY_FILE, TEST_TARGET_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Now the two identical files are compressed. Delta-encode the target, - * with decompression. */ - snprintf_func (buf, TESTBUFSIZE, "%s -e -vfq -s%s %s %s", program_name, TEST_SOURCE_FILE, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Check that the compressed file is small (b/c inputs are - * identical). */ - if ((ret = test_file_size (TEST_DELTA_FILE, & dsize))) { return ret; } - /* Deltas for identical files should be very small. */ - if (dsize > 200) - { - XPR(NT "external compression did not happen\n"); - stream->msg = "external compression did not happen"; - return XD3_INTERNAL; - } - - /* Decode the delta file with recompression disabled, should get an - * uncompressed file out. */ - snprintf_func (buf, TESTBUFSIZE, "%s -v -dq -R -s%s %s %s", program_name, - TEST_SOURCE_FILE, TEST_DELTA_FILE, TEST_RECON_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - if ((ret = test_compare_files (TEST_COPY_FILE, - TEST_RECON_FILE))) { return ret; } - - /* Decode the delta file with recompression, should get a compressed file - * out. But we can't compare compressed files directly. */ - snprintf_func (buf, TESTBUFSIZE, "%s -v -dqf -s%s %s %s", program_name, - TEST_SOURCE_FILE, TEST_DELTA_FILE, TEST_RECON_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - snprintf_func (buf, TESTBUFSIZE, "%s %s < %s > %s", ext->decomp_cmdname, ext->decomp_options, - TEST_RECON_FILE, TEST_RECON2_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - if ((ret = test_compare_files (TEST_COPY_FILE, - TEST_RECON2_FILE))) { return ret; } - - /* Encode with decompression disabled */ - snprintf_func (buf, TESTBUFSIZE, "%s -e -D -vfq -s%s %s %s", program_name, - TEST_SOURCE_FILE, TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Decode the delta file with decompression disabled, should get the - * identical compressed file out. */ - snprintf_func (buf, TESTBUFSIZE, "%s -d -D -vfq -s%s %s %s", program_name, - TEST_SOURCE_FILE, TEST_DELTA_FILE, TEST_RECON_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - if ((ret = test_compare_files (TEST_TARGET_FILE, - TEST_RECON_FILE))) { return ret; } - - test_cleanup(); - return 0; -} -#endif - -/*********************************************************************** - FORCE, STDOUT - ***********************************************************************/ - -/* This tests that output will not overwrite an existing file unless - * -f was specified. The test is for encoding (the same code handles - * it for decoding). */ -static int -test_force_behavior (xd3_stream *stream, int ignore) -{ - int ret; - char buf[TESTBUFSIZE]; - - /* Create empty target file */ - test_setup (); - snprintf_func (buf, TESTBUFSIZE, "cp /dev/null %s", TEST_TARGET_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Encode to delta file */ - snprintf_func (buf, TESTBUFSIZE, "%s -e %s %s", program_name, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Encode again, should fail. */ - snprintf_func (buf, TESTBUFSIZE, "%s -q -e %s %s ", program_name, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_fail (stream, buf))) { return ret; } - - /* Force it, should succeed. */ - snprintf_func (buf, TESTBUFSIZE, "%s -f -e %s %s", program_name, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - test_cleanup(); - return 0; -} - -/* This checks the proper operation of the -c flag. When specified - * the default output becomes stdout, otherwise the input must be - * provided (encode) or it may be defaulted (decode w/ app header). */ -static int -test_stdout_behavior (xd3_stream *stream, int ignore) -{ - int ret; - char buf[TESTBUFSIZE]; - - test_setup(); - snprintf_func (buf, TESTBUFSIZE, "cp /dev/null %s", TEST_TARGET_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Without -c, encode writes to delta file */ - snprintf_func (buf, TESTBUFSIZE, "%s -e %s %s", program_name, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* With -c, encode writes to stdout */ - snprintf_func (buf, TESTBUFSIZE, "%s -e -c %s > %s", program_name, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Without -c, decode writes to target file name, but it fails because the - * file exists. */ - snprintf_func (buf, TESTBUFSIZE, "%s -q -d %s ", program_name, TEST_DELTA_FILE); - if ((ret = do_fail (stream, buf))) { return ret; } - - /* With -c, decode writes to stdout */ - snprintf_func (buf, TESTBUFSIZE, "%s -d -c %s > /dev/null", program_name, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - test_cleanup(); - - return 0; -} - -/* This tests that the no-output flag (-J) works. */ -static int -test_no_output (xd3_stream *stream, int ignore) -{ - int ret; - char buf[TESTBUFSIZE]; - - test_setup (); - - snprintf_func (buf, TESTBUFSIZE, "touch %s && chmod 0000 %s", - TEST_NOPERM_FILE, TEST_NOPERM_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - if ((ret = test_make_inputs (stream, NULL, NULL))) { return ret; } - - /* Try no_output encode w/out unwritable output file */ - snprintf_func (buf, TESTBUFSIZE, "%s -q -f -e %s %s", program_name, - TEST_TARGET_FILE, TEST_NOPERM_FILE); - if ((ret = do_fail (stream, buf))) { return ret; } - snprintf_func (buf, TESTBUFSIZE, "%s -J -e %s %s", program_name, - TEST_TARGET_FILE, TEST_NOPERM_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - /* Now really write the delta to test decode no-output */ - snprintf_func (buf, TESTBUFSIZE, "%s -e %s %s", program_name, - TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - snprintf_func (buf, TESTBUFSIZE, "%s -q -f -d %s %s", program_name, - TEST_DELTA_FILE, TEST_NOPERM_FILE); - if ((ret = do_fail (stream, buf))) { return ret; } - snprintf_func (buf, TESTBUFSIZE, "%s -J -d %s %s", program_name, - TEST_DELTA_FILE, TEST_NOPERM_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - test_cleanup (); - return 0; -} - -/* This tests that the default appheader works */ -static int -test_appheader (xd3_stream *stream, int ignore) -{ - int i; - int ret; - char buf[TESTBUFSIZE]; - char bogus[TESTBUFSIZE]; - xoff_t ssize, tsize; - test_setup (); - - if ((ret = test_make_inputs (stream, &ssize, &tsize))) { return ret; } - - snprintf_func (buf, TESTBUFSIZE, "%s -q -f -e -s %s %s %s", program_name, - TEST_SOURCE_FILE, TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - if ((ret = test_copy_to (program_name, TEST_RECON2_FILE))) { return ret; } - - snprintf_func (buf, TESTBUFSIZE, "chmod 0700 %s", TEST_RECON2_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - if ((ret = test_save_copy (TEST_TARGET_FILE))) { return ret; } - if ((ret = test_copy_to (TEST_SOURCE_FILE, TEST_TARGET_FILE))) { return ret; } - - if ((ret = test_compare_files (TEST_TARGET_FILE, TEST_COPY_FILE)) == 0) - { - return XD3_INVALID; // I.e., files are different! - } - - // Test that the target file is restored. - snprintf_func (buf, TESTBUFSIZE, "(cd /tmp && %s -q -f -d %s)", - TEST_RECON2_FILE, - TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - - if ((ret = test_compare_files (TEST_TARGET_FILE, TEST_COPY_FILE)) != 0) - { - return ret; - } - - // Test a malicious string w/ entries > 4 in the appheader by having - // the encoder write it: - for (i = 0; i < TESTBUFSIZE / 4; ++i) - { - bogus[2*i] = 'G'; - bogus[2*i+1] = '/'; - } - bogus[TESTBUFSIZE/2-1] = 0; - - snprintf_func (buf, TESTBUFSIZE, - "%s -q -f -A=%s -e -s %s %s %s", program_name, bogus, - TEST_SOURCE_FILE, TEST_TARGET_FILE, TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf))) { return ret; } - // Then read it: - snprintf_func (buf, TESTBUFSIZE, "(cd /tmp && %s -q -f -d %s)", - TEST_RECON2_FILE, - TEST_DELTA_FILE); - if ((ret = do_cmd (stream, buf)) == 0) - { - return XD3_INVALID; // Impossible - } - if (!WIFEXITED(ret)) - { - return XD3_INVALID; // Must have crashed! - } - - test_cleanup (); - return 0; -} - -/*********************************************************************** - Source identical optimization - ***********************************************************************/ - -/* Computing a delta should be fastest when the two inputs are - * identical, this checks it. The library is called to compute a - * delta between a 10000 byte file, 1000 byte winsize, 500 byte source - * blocksize. The same buffer is used for both source and target. */ -static int -test_identical_behavior (xd3_stream *stream, int ignore) -{ -#define IDB_TGTSZ 10000 /* Not a power of two b/c of hard-coded expectations below. */ -#define IDB_BLKSZ 512 -#define IDB_WINSZ 1000 -#define IDB_DELSZ 1000 -#define IDB_WINCNT (IDB_TGTSZ / IDB_WINSZ) - - int ret, i; - uint8_t buf[IDB_TGTSZ]; - uint8_t del[IDB_DELSZ]; - uint8_t rec[IDB_TGTSZ]; - xd3_source source; - int nextencwin = 0; - int winstarts = 0, winfinishes = 0; - usize_t delpos = 0, recsize; - xd3_config config; - memset(&source, 0, sizeof(source)); - - for (i = 0; i < IDB_TGTSZ; i += 1) - { - buf[i] = (uint8_t) mt_random (&static_mtrand); - } - - stream->winsize = IDB_WINSZ; - - source.blksize = IDB_BLKSZ; - source.name = ""; - source.curblk = NULL; - source.curblkno = 0; - - if ((ret = xd3_set_source (stream, & source))) { goto fail; } - - /* Compute an delta between identical source and targets. */ - for (;;) - { - ret = xd3_encode_input (stream); - - if (ret == XD3_INPUT) - { - xd3_avail_input (stream, buf + (IDB_WINSZ * nextencwin), IDB_WINSZ); - nextencwin += 1; - continue; - } - - if (ret == XD3_GETSRCBLK) - { - source.curblkno = source.getblkno; - source.onblk = IDB_BLKSZ; - source.curblk = buf + source.getblkno * IDB_BLKSZ; - continue; - } - - if (ret == XD3_WINSTART) - { - winstarts++; - continue; - } - if (ret == XD3_WINFINISH) - { - winfinishes++; - if (winfinishes == IDB_WINCNT) - { - break; - } - continue; - } - - if (ret != XD3_OUTPUT) { goto fail; } - - CHECK(delpos + stream->avail_out <= IDB_DELSZ); - - memcpy (del + delpos, stream->next_out, stream->avail_out); - - delpos += stream->avail_out; - - xd3_consume_output (stream); - } - - CHECK(winfinishes == IDB_WINCNT); - CHECK(winstarts == IDB_WINCNT); - CHECK(nextencwin == IDB_WINCNT); - - /* Reset. */ - memset(&source, 0, sizeof(source)); - source.blksize = IDB_TGTSZ; - source.onblk = IDB_TGTSZ; - source.curblk = buf; - source.curblkno = 0; - - if ((ret = xd3_close_stream (stream))) { goto fail; } - xd3_free_stream (stream); - xd3_init_config (& config, 0); - if ((ret = xd3_config_stream (stream, & config))) { goto fail; } - if ((ret = xd3_set_source_and_size (stream, & source, IDB_TGTSZ))) { goto fail; } - - /* Decode. */ - if ((ret = xd3_decode_stream (stream, del, delpos, rec, & recsize, IDB_TGTSZ))) { goto fail; } - - /* Check result size and data. */ - if (recsize != IDB_TGTSZ) { stream->msg = "wrong size reconstruction"; goto fail; } - if (memcmp (rec, buf, IDB_TGTSZ) != 0) { stream->msg = "wrong data reconstruction"; goto fail; } - - /* Check that there was one copy per window. */ - IF_DEBUG (if (stream->n_scpy != IDB_WINCNT || - stream->n_add != 0 || - stream->n_run != 0) { stream->msg = "wrong copy count"; goto fail; }); - - /* Check that no checksums were computed because the initial match - was presumed. */ - IF_DEBUG (if (stream->large_ckcnt != 0) { stream->msg = "wrong checksum behavior"; goto fail; }); - - ret = 0; - fail: - return ret; -} - -/*********************************************************************** - String matching test - ***********************************************************************/ - -/* Check particular matching behaviors by calling - * xd3_string_match_soft directly with specific arguments. */ -typedef struct _string_match_test string_match_test; - -typedef enum -{ - SM_NONE = 0, - SM_LAZY = (1 << 1), -} string_match_flags; - -struct _string_match_test -{ - const char *input; - int flags; - const char *result; -}; - -static const string_match_test match_tests[] = -{ - /* nothing */ - { "1234567890", SM_NONE, "" }, - - /* basic run, copy */ - { "11111111112323232323", SM_NONE, "R0/10 C12/8@10" }, - - /* no run smaller than MIN_RUN=8 */ - { "1111111", SM_NONE, "C1/6@0" }, - { "11111111", SM_NONE, "R0/8" }, - - /* simple promotion: the third copy address depends on promotion */ - { "ABCDEF_ABCDEF^ABCDEF", SM_NONE, "C7/6@0 C14/6@7" }, - /* { "ABCDEF_ABCDEF^ABCDEF", SM_PROMOTE, "C7/6@0 C14/6@0" }, forgotten */ - - /* simple lazy: there is a better copy starting with "23 X" than "123 " */ - { "123 23 XYZ 123 XYZ", SM_NONE, "C11/4@0" }, - { "123 23 XYZ 123 XYZ", SM_LAZY, "C11/4@0 C12/6@4" }, - - /* trylazy: no lazy matches unless there are at least two characters beyond - * the first match */ - { "2123_121212", SM_LAZY, "C7/4@5" }, - { "2123_1212123", SM_LAZY, "C7/4@5" }, - { "2123_1212123_", SM_LAZY, "C7/4@5 C8/5@0" }, - - /* trylazy: no lazy matches if the copy is >= MAXLAZY=10 */ - { "2123_121212123_", SM_LAZY, "C7/6@5 C10/5@0" }, - { "2123_12121212123_", SM_LAZY, "C7/8@5 C12/5@0" }, - { "2123_1212121212123_", SM_LAZY, "C7/10@5" }, - - /* lazy run: check a run overlapped by a longer copy */ - { "11111112 111111112 1", SM_LAZY, "C1/6@0 R9/8 C10/10@0" }, - - /* lazy match: match_length,run_l >= min_match tests, shouldn't get any - * copies within the run, no run within the copy */ - { "^________^________ ", SM_LAZY, "R1/8 C9/9@0" }, - - /* chain depth: it only goes back 10. this checks that the 10th match hits - * and the 11th misses. */ - { "1234 1234_1234-1234=1234+1234[1234]1234{1234}1234<1234 ", SM_NONE, - "C5/4@0 C10/4@5 C15/4@10 C20/4@15 C25/4@20 C30/4@25 C35/4@30 C40/4@35 C45/4@40 C50/5@0" }, - { "1234 1234_1234-1234=1234+1234[1234]1234{1234}1234<1234>1234 ", SM_NONE, - "C5/4@0 C10/4@5 C15/4@10 C20/4@15 C25/4@20 C30/4@25 C35/4@30 C40/4@35 C45/4@40 C50/4@45 C55/4@50" }, - - /* ssmatch test */ - { "ABCDE___ABCDE*** BCDE***", SM_NONE, "C8/5@0 C17/4@1" }, - /*{ "ABCDE___ABCDE*** BCDE***", SM_SSMATCH, "C8/5@0 C17/7@9" }, forgotten */ -}; - -static int -test_string_matching (xd3_stream *stream, int ignore) -{ - usize_t i; - int ret; - xd3_config config; - char rbuf[TESTBUFSIZE]; - - for (i = 0; i < SIZEOF_ARRAY (match_tests); i += 1) - { - const string_match_test *test = & match_tests[i]; - char *rptr = rbuf; - usize_t len = (usize_t) strlen (test->input); - - xd3_free_stream (stream); - xd3_init_config (& config, 0); - - config.smatch_cfg = XD3_SMATCH_SOFT; - config.smatcher_soft.large_look = 4; - config.smatcher_soft.large_step = 4; - config.smatcher_soft.small_look = 4; - config.smatcher_soft.small_chain = 10; - config.smatcher_soft.small_lchain = 10; - config.smatcher_soft.max_lazy = (test->flags & SM_LAZY) ? 10 : 0; - config.smatcher_soft.long_enough = 10; - - if ((ret = xd3_config_stream (stream, & config))) { return ret; } - if ((ret = xd3_encode_init_full (stream))) { return ret; } - - xd3_avail_input (stream, (uint8_t*)test->input, len); - - if ((ret = stream->smatcher.string_match (stream))) { return ret; } - - *rptr = 0; - while (! xd3_rlist_empty (& stream->iopt_used)) - { - xd3_rinst *inst = xd3_rlist_pop_front (& stream->iopt_used); - - switch (inst->type) - { - case XD3_RUN: *rptr++ = 'R'; break; - case XD3_CPY: *rptr++ = 'C'; break; - default: CHECK(0); - } - - snprintf_func (rptr, rbuf+TESTBUFSIZE-rptr, "%d/%d", - inst->pos, inst->size); - rptr += strlen (rptr); - - if (inst->type == XD3_CPY) - { - *rptr++ = '@'; - snprintf_func (rptr, rbuf+TESTBUFSIZE-rptr, "%"Q"d", inst->addr); - rptr += strlen (rptr); - } - - *rptr++ = ' '; - - xd3_rlist_push_back (& stream->iopt_free, inst); - } - - if (rptr != rbuf) - { - rptr -= 1; *rptr = 0; - } - - if (strcmp (rbuf, test->result) != 0) - { - XPR(NT "test %u: expected %s: got %s", i, test->result, rbuf); - stream->msg = "wrong result"; - return XD3_INTERNAL; - } - } - - return 0; -} - -/* - * This is a test for many overlapping instructions. It must be a lazy - * matcher. - */ -static int -test_iopt_flush_instructions (xd3_stream *stream, int ignore) -{ - int ret, i; - usize_t tpos = 0; - usize_t delta_size, recon_size; - xd3_config config; - uint8_t target[TESTBUFSIZE]; - uint8_t delta[TESTBUFSIZE]; - uint8_t recon[TESTBUFSIZE]; - - xd3_free_stream (stream); - xd3_init_config (& config, 0); - - config.smatch_cfg = XD3_SMATCH_SOFT; - config.smatcher_soft.large_look = 16; - config.smatcher_soft.large_step = 16; - config.smatcher_soft.small_look = 4; - config.smatcher_soft.small_chain = 128; - config.smatcher_soft.small_lchain = 16; - config.smatcher_soft.max_lazy = 8; - config.smatcher_soft.long_enough = 128; - - if ((ret = xd3_config_stream (stream, & config))) { return ret; } - - for (i = 1; i < 250; i++) - { - target[tpos++] = i; - target[tpos++] = i+1; - target[tpos++] = i+2; - target[tpos++] = i+3; - target[tpos++] = 0; - } - for (i = 1; i < 253; i++) - { - target[tpos++] = i; - } - - if ((ret = xd3_encode_stream (stream, target, tpos, - delta, & delta_size, sizeof (delta)))) - { - return ret; - } - - xd3_free_stream(stream); - if ((ret = xd3_config_stream (stream, & config))) { return ret; } - - if ((ret = xd3_decode_stream (stream, delta, delta_size, - recon, & recon_size, sizeof (recon)))) - { - return ret; - } - - CHECK(tpos == recon_size); - CHECK(memcmp(target, recon, recon_size) == 0); - - return 0; -} - -/* - * This tests the 32/64bit ambiguity for source-window matching. - */ -static int -test_source_cksum_offset (xd3_stream *stream, int ignore) -{ - xd3_source source; - - // Inputs are: - struct { - xoff_t cpos; // stream->srcwin_cksum_pos; - xoff_t ipos; // stream->total_in; - xoff_t size; // stream->src->size; - - usize_t input; // input 32-bit offset - xoff_t output; // output 64-bit offset - - } cksum_test[] = { - // If cpos is <= 2^32 - { 1, 1, 1, 1, 1 }, - -#if XD3_USE_LARGEFILE64 -// cpos ipos size input output -// 0x____xxxxxULL, 0x____xxxxxULL, 0x____xxxxxULL, 0x___xxxxxUL, 0x____xxxxxULL - { 0x100100000ULL, 0x100000000ULL, 0x100200000ULL, 0x00000000UL, 0x100000000ULL }, - { 0x100100000ULL, 0x100000000ULL, 0x100200000ULL, 0xF0000000UL, 0x0F0000000ULL }, - - { 0x100200000ULL, 0x100100000ULL, 0x100200000ULL, 0x00300000UL, 0x000300000ULL }, - - { 25771983104ULL, 25770000000ULL, 26414808769ULL, 2139216707UL, 23614053187ULL }, - -#endif - - { 0, 0, 0, 0, 0 }, - }, *test_ptr; - - stream->src = &source; - - for (test_ptr = cksum_test; test_ptr->cpos; test_ptr++) { - xoff_t r; - stream->srcwin_cksum_pos = test_ptr->cpos; - stream->total_in = test_ptr->ipos; - - r = xd3_source_cksum_offset(stream, test_ptr->input); - CHECK(r == test_ptr->output); - } - return 0; -} - -static int -test_in_memory (xd3_stream *stream, int ignore) -{ - // test_text is 256 bytes - uint8_t ibuf[sizeof(test_text)]; - uint8_t dbuf[sizeof(test_text)]; - uint8_t obuf[sizeof(test_text)]; - usize_t size = sizeof(test_text); - usize_t dsize, osize; - int r1, r2; - int eflags = SECONDARY_DJW ? XD3_SEC_DJW : 0; - - memcpy(ibuf, test_text, size); - memset(ibuf + 128, 0, 16); - - r1 = xd3_encode_memory(ibuf, size, - test_text, size, - dbuf, &dsize, size, eflags); - - r2 = xd3_decode_memory(dbuf, dsize, - test_text, size, - obuf, &osize, size, 0); - - if (r1 != 0 || r2 != 0 || dsize >= (size/2) || dsize < 1 || - osize != size) { - stream->msg = "encode/decode size error"; - return XD3_INTERNAL; - } - - if (memcmp(obuf, ibuf, size) != 0) { - stream->msg = "encode/decode data error"; - return XD3_INTERNAL; - } - - return 0; -} - -/*********************************************************************** - TEST MAIN - ***********************************************************************/ - -static int -xd3_selftest (void) -{ -#define DO_TEST(fn,flags,arg) \ - do { \ - xd3_stream stream; \ - xd3_config config; \ - xd3_init_config (& config, flags); \ - XPR(NT "testing " #fn "%s...", \ - flags ? (" (" #flags ")") : ""); \ - if ((ret = xd3_config_stream (& stream, & config) == 0) && \ - (ret = test_ ## fn (& stream, arg)) == 0) { \ - XPR(NTR " success\n"); \ - } else { \ - XPR(NTR " failed: %s: %s\n", xd3_errstring (& stream), \ - xd3_mainerror (ret)); } \ - xd3_free_stream (& stream); \ - if (ret != 0) { goto failure; } \ - } while (0) - - int ret; - DO_TEST (random_numbers, 0, 0); - DO_TEST (printf_xoff, 0, 0); - - DO_TEST (decode_integer_end_of_input, 0, 0); - DO_TEST (decode_integer_overflow, 0, 0); - DO_TEST (encode_decode_uint32_t, 0, 0); - DO_TEST (encode_decode_uint64_t, 0, 0); - DO_TEST (usize_t_overflow, 0, 0); - DO_TEST (forward_match, 0, 0); - - DO_TEST (address_cache, 0, 0); - - DO_TEST (string_matching, 0, 0); - DO_TEST (choose_instruction, 0, 0); - DO_TEST (identical_behavior, 0, 0); - DO_TEST (in_memory, 0, 0); - - DO_TEST (iopt_flush_instructions, 0, 0); - DO_TEST (source_cksum_offset, 0, 0); - - DO_TEST (decompress_single_bit_error, 0, 3); - DO_TEST (decompress_single_bit_error, XD3_ADLER32, 3); - - IF_LZMA (DO_TEST (decompress_single_bit_error, XD3_SEC_LZMA, 54)); - IF_FGK (DO_TEST (decompress_single_bit_error, XD3_SEC_FGK, 3)); - IF_DJW (DO_TEST (decompress_single_bit_error, XD3_SEC_DJW, 8)); - -#if SHELL_TESTS - DO_TEST (force_behavior, 0, 0); - DO_TEST (stdout_behavior, 0, 0); - DO_TEST (no_output, 0, 0); - DO_TEST (appheader, 0, 0); - DO_TEST (command_line_arguments, 0, 0); - -#if EXTERNAL_COMPRESSION - DO_TEST (source_decompression, 0, 0); - DO_TEST (externally_compressed_io, 0, 0); -#endif - - DO_TEST (recode_command, 0, 0); - IF_LZMA (DO_TEST (secondary_lzma_default, 0, 0)); -#endif - - IF_LZMA (DO_TEST (secondary_lzma, 0, 1)); - IF_DJW (DO_TEST (secondary_huff, 0, DJW_MAX_GROUPS)); - IF_FGK (DO_TEST (secondary_fgk, 0, 1)); - - DO_TEST (compressed_stream_overflow, 0, 0); - IF_LZMA (DO_TEST (compressed_stream_overflow, XD3_SEC_LZMA, 0)); - -failure: - test_cleanup (); - return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; -#undef DO_TEST -} diff --git a/extern/xdelta3/xdelta3.1 b/extern/xdelta3/xdelta3.1 deleted file mode 100644 index 693171e..0000000 --- a/extern/xdelta3/xdelta3.1 +++ /dev/null @@ -1,153 +0,0 @@ -.TH XDELTA3 "1" "August 2009" "Xdelta3" -.SH NAME -xdelta3 \- VCDIFF (RFC 3284) binary diff tool -.SH SYNOPSIS -.B xdelta3 -.RI [ command ] -.RI [ options ] -.RI [ input -.RI [ output ]] -.SH DESCRIPTION -.B xdelta3 -is a binary diff tool that uses the VCDIFF (RFC 3284) format and compression. -.SH COMMANDS -.TP -.BI config -prints xdelta3 configuration -.TP -.BI decode -decompress the input, also set by -d -.TP -.BI encode -compress the input, also set by -e (default) -.TP -.BI test -run the builtin tests -.TP -.BI printdelta -print information about the entire delta -.TP -.BI printhdr -print information about the first window -.TP -.BI printhdrs -print information about all windows -.TP -.BI recode -encode with new application/secondary settings - -.SH OPTIONS -standard options: -.TP -.BI "\-0 .. \-9" -compression level -.TP -.BI "\-c" -use stdout -.TP -.BI "\-d" -decompress -.TP -.BI \-e -compress -.TP -.BI \-f -force overwrite -.TP -.BI \-h -show help -.TP -.BI \-q -be quiet -.TP -.BI \-v -be verbose (max 2) -.TP -.BI \-V -show version - -.TP -memory options: -.TP -.BI \-B -.RI bytes -source window size -.TP -.BI \-W -.RI bytes -input window size -.TP -.BI \-P -.RI size -compression duplicates window -.TP -.BI \-I -.RI size -instruction buffer size (0 = unlimited) - -.TP -compression options: -.TP -.BI \-s -.RI source -source file to copy from (if any) -.TP -.BI "\-S " [djw|fgk] -enable/disable secondary compression -.TP -.BI \-N -disable small string-matching compression -.TP -.BI \-D -disable external decompression (encode/decode) -.TP -.BI \-R -disable external recompression (decode) -.TP -.BI \-n -disable checksum (encode/decode) -.TP -.BI \-C -soft config (encode, undocumented) -.TP -.BI "\-A " [apphead] -disable/provide application header (encode) -.TP -.BI \-J -disable output (check/compute only) -.TP -.BI \-T -use alternate code table (test) - -.SH NOTES -The -.B XDELTA -environment variable may contain extra args: - -.RS -XDELTA="-s source-x.y.tar.gz" \\ -.br -tar --use-compress-program=xdelta3 -cf \\ -.br -target-x.z.tar.gz.vcdiff target-x.y/ - -.SH EXAMPLES - -Compress the differences between SOURCE and TARGET, yielding OUT, -using "djw" secondary compression: - -xdelta3 -S djw -s SOURCE TARGET OUT - -Do the same, using standard input and output: - -xdelta3 -S djw -s SOURCE < TARGET > OUT - -To decompress OUT, using SOURCE, yielding TARGET: - -xdelta3 -d -s SOURCE OUT TARGET - -.SH AUTHOR -xdelta3 was written by Josh MacDonald . -.PP -This manual page was written by Leo 'costela' Antunes -for the Debian project (but may be used by others). diff --git a/extern/xdelta3/xdelta3.c b/extern/xdelta3/xdelta3.c deleted file mode 100644 index 976b219..0000000 --- a/extern/xdelta3/xdelta3.c +++ /dev/null @@ -1,4838 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, - * 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015. Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - ------------------------------------------------------------------- - - Xdelta 3 - - The goal of this library is to to implement both the (stand-alone) - data-compression and delta-compression aspects of VCDIFF encoding, and - to support a programming interface that works like Zlib - (http://www.gzip.org/zlib.html). See RFC3284: The VCDIFF Generic - Differencing and Compression Data Format. - - VCDIFF is a unified encoding that combines data-compression and - delta-encoding ("differencing"). - - VCDIFF has a detailed byte-code instruction set with many features. - The instruction format supports an immediate size operand for small - COPYs and ADDs (e.g., under 18 bytes). There are also instruction - "modes", which are used to compress COPY addresses by using two - address caches. An instruction mode refers to slots in the NEAR - and SAME caches for recent addresses. NEAR remembers the - previous 4 (by default) COPY addresses, and SAME catches - frequent re-uses of the same address using a 3-way (by default) - 256-entry associative cache of [ADDR mod 256], the encoded byte. - A hit in the NEAR/SAME cache requires 0/1 ADDR bytes. - - VCDIFF has a default instruction table, but an alternate - instruction tables may themselves be be delta-compressed and - included in the encoding header. This allows even more freedom. - There are 9 instruction modes in the default code table, 4 near, 3 - same, VCD_SELF (absolute encoding) and VCD_HERE (relative to the - current position). - - ---------------------------------------------------------------------- - - Algorithms - - Aside from the details of encoding and decoding, there are a bunch - of algorithms needed. - - 1. STRING-MATCH. A two-level fingerprinting approach is used. A - single loop computes the two checksums -- small and large -- at - successive offsets in the TARGET file. The large checksum is more - accurate and is used to discover SOURCE matches, which are - potentially very long. The small checksum is used to discover - copies within the TARGET. Small matching, which is more expensive, - usually dominates the large STRING-MATCH costs in this code - the - more exhaustive the search, the better the results. Either of the - two string-matching mechanisms may be disabled. - - 2. INSTRUCTION SELECTION. The IOPT buffer here represents a queue - used to store overlapping copy instructions. There are two possible - optimizations that go beyond a greedy search. Both of these fall - into the category of "non-greedy matching" optimizations. - - The first optimization stems from backward SOURCE-COPY matching. - When a new SOURCE-COPY instruction covers a previous instruction in - the target completely, it is erased from the queue. Randal Burns - originally analyzed these algorithms and did a lot of related work - (\cite the 1.5-pass algorithm). - - The second optimization comes by the encoding of common very-small - COPY and ADD instructions, for which there are special DOUBLE-code - instructions, which code two instructions in a single byte. - - The cost of bad instruction-selection overhead is relatively high - for data-compression, relative to delta-compression, so this second - optimization is fairly important. With "lazy" matching (the name - used in Zlib for a similar optimization), the string-match - algorithm searches after a match for potential overlapping copy - instructions. In Xdelta and by default, VCDIFF, the minimum match - size is 4 bytes, whereas Zlib searches with a 3-byte minimum. This - feature, combined with double instructions, provides a nice - challenge. Search in this file for "black magic", a heuristic. - - 3. STREAM ALIGNMENT. Stream alignment is needed to compress large - inputs in constant space. See xd3_srcwin_move_point(). - - 4. WINDOW SELECTION. When the IOPT buffer flushes, in the first call - to xd3_iopt_finish_encoding containing any kind of copy instruction, - the parameters of the source window must be decided: the offset into - the source and the length of the window. Since the IOPT buffer is - finite, the program may be forced to fix these values before knowing - the best offset/length. - - 5. SECONDARY COMPRESSION. VCDIFF supports a secondary encoding to - be applied to the individual sections of the data format, which are - ADDRess, INSTruction, and DATA. Several secondary compressor - variations are implemented here, although none is standardized yet. - - One is an adaptive huffman algorithm -- the FGK algorithm (Faller, - Gallager, and Knuth, 1985). This compressor is extremely slow. - - The other is a simple static Huffman routine, which is the base - case of a semi-adaptive scheme published by D.J. Wheeler and first - widely used in bzip2 (by Julian Seward). This is a very - interesting algorithm, originally published in nearly cryptic form - by D.J. Wheeler. !!!NOTE!!! Because these are not standardized, - secondary compression remains off by default. - ftp://ftp.cl.cam.ac.uk/users/djw3/bred3.{c,ps} - -------------------------------------------------------------------- - - Other Features - - 1. USER CONVENIENCE - - For user convenience, it is essential to recognize Gzip-compressed - files and automatically Gzip-decompress them prior to - delta-compression (or else no delta-compression will be achieved - unless the user manually decompresses the inputs). The compressed - represention competes with Xdelta, and this must be hidden from the - command-line user interface. The Xdelta-1.x encoding was simple, not - compressed itself, so Xdelta-1.x uses Zlib internally to compress the - representation. - - This implementation supports external compression, which implements - the necessary fork() and pipe() mechanics. There is a tricky step - involved to support automatic detection of a compressed input in a - non-seekable input. First you read a bit of the input to detect - magic headers. When a compressed format is recognized, exec() the - external compression program and create a second child process to - copy the original input stream. [Footnote: There is a difficulty - related to using Gzip externally. It is not possible to decompress - and recompress a Gzip file transparently. If FILE.GZ had a - cryptographic signature, then, after: (1) Gzip-decompression, (2) - Xdelta-encoding, (3) Gzip-compression the signature could be - broken. The only way to solve this problem is to guess at Gzip's - compression level or control it by other means. I recommend that - specific implementations of any compression scheme store - information needed to exactly re-compress the input, that way - external compression is transparent - however, this won't happen - here until it has stabilized.] - - 2. APPLICATION-HEADER - - This feature was introduced in RFC3284. It allows any application - to include a header within the VCDIFF file format. This allows - general inter-application data exchange with support for - application-specific extensions to communicate metadata. - - 3. VCDIFF CHECKSUM - - An optional checksum value is included with each window, which can - be used to validate the final result. This verifies the correct source - file was used for decompression as well as the obvious advantage: - checking the implementation (and underlying) correctness. - - 4. LIGHT WEIGHT - - The code makes efforts to avoid copying data more than necessary. - The code delays many initialization tasks until the first use, it - optimizes for identical (perfectly matching) inputs. It does not - compute any checksums until the first lookup misses. Memory usage - is reduced. String-matching is templatized (by slightly gross use - of CPP) to hard-code alternative compile-time defaults. The code - has few outside dependencies. - ---------------------------------------------------------------------- - - The default rfc3284 instruction table: - (see RFC for the explanation) - - TYPE SIZE MODE TYPE SIZE MODE INDEX - -------------------------------------------------------------------- - 1. Run 0 0 Noop 0 0 0 - 2. Add 0, [1,17] 0 Noop 0 0 [1,18] - 3. Copy 0, [4,18] 0 Noop 0 0 [19,34] - 4. Copy 0, [4,18] 1 Noop 0 0 [35,50] - 5. Copy 0, [4,18] 2 Noop 0 0 [51,66] - 6. Copy 0, [4,18] 3 Noop 0 0 [67,82] - 7. Copy 0, [4,18] 4 Noop 0 0 [83,98] - 8. Copy 0, [4,18] 5 Noop 0 0 [99,114] - 9. Copy 0, [4,18] 6 Noop 0 0 [115,130] - 10. Copy 0, [4,18] 7 Noop 0 0 [131,146] - 11. Copy 0, [4,18] 8 Noop 0 0 [147,162] - 12. Add [1,4] 0 Copy [4,6] 0 [163,174] - 13. Add [1,4] 0 Copy [4,6] 1 [175,186] - 14. Add [1,4] 0 Copy [4,6] 2 [187,198] - 15. Add [1,4] 0 Copy [4,6] 3 [199,210] - 16. Add [1,4] 0 Copy [4,6] 4 [211,222] - 17. Add [1,4] 0 Copy [4,6] 5 [223,234] - 18. Add [1,4] 0 Copy 4 6 [235,238] - 19. Add [1,4] 0 Copy 4 7 [239,242] - 20. Add [1,4] 0 Copy 4 8 [243,246] - 21. Copy 4 [0,8] Add 1 0 [247,255] - -------------------------------------------------------------------- - - Reading the source: Overview - - This file includes itself in several passes to macro-expand certain - sections with variable forms. Just read ahead, there's only a - little confusion. I know this sounds ugly, but hard-coding some of - the string-matching parameters results in a 10-15% increase in - string-match performance. The only time this hurts is when you have - unbalanced #if/endifs. - - A single compilation unit tames the Makefile. In short, this is to - allow the above-described hack without an explodingMakefile. The - single compilation unit includes the core library features, - configurable string-match templates, optional main() command-line - tool, misc optional features, and a regression test. Features are - controled with CPP #defines, see Makefile.am. - - The initial __XDELTA3_C_HEADER_PASS__ starts first, the _INLINE_ and - _TEMPLATE_ sections follow. Easy stuff first, hard stuff last. - - Optional features include: - - xdelta3-main.h The command-line interface, external compression - support, POSIX-specific, info & VCDIFF-debug tools. - xdelta3-second.h The common secondary compression routines. - xdelta3-decoder.h All decoding routines. - xdelta3-djw.h The semi-adaptive huffman secondary encoder. - xdelta3-fgk.h The adaptive huffman secondary encoder. - xdelta3-test.h The unit test covers major algorithms, - encoding and decoding. There are single-bit - error decoding tests. There are 32/64-bit file size - boundary tests. There are command-line tests. - There are compression tests. There are external - compression tests. There are string-matching tests. - There should be more tests... - - Additional headers include: - - xdelta3.h The public header file. - xdelta3-cfgs.h The default settings for default, built-in - encoders. These are hard-coded at - compile-time. There is also a single - soft-coded string matcher for experimenting - with arbitrary values. - xdelta3-list.h A cyclic list template - - Misc little debug utilities: - - badcopy.c Randomly modifies an input file based on two - parameters: (1) the probability that a byte in - the file is replaced with a pseudo-random value, - and (2) the mean change size. Changes are - generated using an expoential distribution - which approximates the expected error_prob - distribution. - -------------------------------------------------------------------- - - This file itself is unusually large. I hope to defend this layout - with lots of comments. Everything in this file is related to - encoding and decoding. I like it all together - the template stuff - is just a hack. */ - -#ifndef __XDELTA3_C_HEADER_PASS__ -#define __XDELTA3_C_HEADER_PASS__ - -#include "xdelta3.h" -#include "xdelta3-internal.h" - -/*********************************************************************** - STATIC CONFIGURATION - ***********************************************************************/ - -#ifndef XD3_MAIN /* the main application */ -#define XD3_MAIN 0 -#endif - -#ifndef VCDIFF_TOOLS -#define VCDIFF_TOOLS XD3_MAIN -#endif - -#ifndef SECONDARY_FGK /* one from the algorithm preservation department: */ -#define SECONDARY_FGK 0 /* adaptive Huffman routines */ -#endif - -#ifndef SECONDARY_DJW /* semi-adaptive/static Huffman for the eventual */ -#define SECONDARY_DJW 0 /* standardization, off by default until such time. */ -#endif - -#ifndef SECONDARY_LZMA -#ifdef HAVE_LZMA_H -#define SECONDARY_LZMA 1 -#else -#define SECONDARY_LZMA 0 -#endif -#endif - -#if XD3_ENCODER -#define IF_ENCODER(x) x -#else -#define IF_ENCODER(x) -#endif - -/***********************************************************************/ - - /* header indicator bits */ -#define VCD_SECONDARY (1U << 0) /* uses secondary compressor */ -#define VCD_CODETABLE (1U << 1) /* supplies code table data */ -#define VCD_APPHEADER (1U << 2) /* supplies application data */ -#define VCD_INVHDR (~0x7U) - - /* window indicator bits */ -#define VCD_SOURCE (1U << 0) /* copy window in source file */ -#define VCD_TARGET (1U << 1) /* copy window in target file */ -#define VCD_ADLER32 (1U << 2) /* has adler32 checksum */ -#define VCD_INVWIN (~0x7U) - -#define VCD_SRCORTGT (VCD_SOURCE | VCD_TARGET) - - /* delta indicator bits */ -#define VCD_DATACOMP (1U << 0) -#define VCD_INSTCOMP (1U << 1) -#define VCD_ADDRCOMP (1U << 2) -#define VCD_INVDEL (~0x7U) - -typedef enum { - VCD_DJW_ID = 1, - VCD_LZMA_ID = 2, - VCD_FGK_ID = 16 /* Note: these are not standard IANA-allocated IDs! */ -} xd3_secondary_ids; - -typedef enum { - SEC_NOFLAGS = 0, - - /* Note: SEC_COUNT_FREQS Not implemented (to eliminate 1st Huffman pass) */ - SEC_COUNT_FREQS = (1 << 0) -} xd3_secondary_flags; - -typedef enum { - DATA_SECTION, /* These indicate which section to the secondary - * compressor. */ - INST_SECTION, /* The header section is not compressed, therefore not - * listed here. */ - ADDR_SECTION -} xd3_section_type; - -typedef unsigned int xd3_rtype; - -/***********************************************************************/ - -#include "xdelta3-list.h" - -XD3_MAKELIST(xd3_rlist, xd3_rinst, link); - -/***********************************************************************/ - -#define SECONDARY_MIN_SAVINGS 2 /* Secondary compression has to save - at least this many bytes. */ -#define SECONDARY_MIN_INPUT 10 /* Secondary compression needs at - least this many bytes. */ - -#define VCDIFF_MAGIC1 0xd6 /* 1st file byte */ -#define VCDIFF_MAGIC2 0xc3 /* 2nd file byte */ -#define VCDIFF_MAGIC3 0xc4 /* 3rd file byte */ -#define VCDIFF_VERSION 0x00 /* 4th file byte */ - -#define VCD_SELF 0 /* 1st address mode */ -#define VCD_HERE 1 /* 2nd address mode */ - -#define CODE_TABLE_STRING_SIZE (6 * 256) /* Should fit a code table string. */ -#define CODE_TABLE_VCDIFF_SIZE (6 * 256) /* Should fit a compressed code - * table string */ - -#define SECONDARY_ANY (SECONDARY_DJW || SECONDARY_FGK || SECONDARY_LZMA) - -#define ALPHABET_SIZE 256 /* Used in test code--size of the secondary - * compressor alphabet. */ - -#define HASH_PERMUTE 1 /* The input is permuted by random nums */ -#define ADLER_LARGE_CKSUM 1 /* Adler checksum vs. RK checksum */ - -#define HASH_CKOFFSET 1U /* Table entries distinguish "no-entry" from - * offset 0 using this offset. */ - -#define MIN_SMALL_LOOK 2U /* Match-optimization stuff. */ -#define MIN_LARGE_LOOK 2U -#define MIN_MATCH_OFFSET 1U -#define MAX_MATCH_SPLIT 18U /* VCDIFF code table: 18 is the default limit - * for direct-coded ADD sizes */ - -#define LEAST_MATCH_INCR 0 /* The least number of bytes an overlapping - * match must beat the preceding match by. This - * is a bias for the lazy match optimization. A - * non-zero value means that an adjacent match - * has to be better by more than the step - * between them. 0. */ - -#define MIN_MATCH 4U /* VCDIFF code table: MIN_MATCH=4 */ -#define MIN_ADD 1U /* 1 */ -#define MIN_RUN 8U /* The shortest run, if it is shorter than this - * an immediate add/copy will be just as good. - * ADD1/COPY6 = 1I+1D+1A bytes, RUN18 = - * 1I+1D+1A. */ - -#define MAX_MODES 9 /* Maximum number of nodes used for - * compression--does not limit decompression. */ - -#define ENC_SECTS 4 /* Number of separate output sections. */ - -#define HDR_TAIL(s) ((s)->enc_tails[0]) -#define DATA_TAIL(s) ((s)->enc_tails[1]) -#define INST_TAIL(s) ((s)->enc_tails[2]) -#define ADDR_TAIL(s) ((s)->enc_tails[3]) - -#define HDR_HEAD(s) ((s)->enc_heads[0]) -#define DATA_HEAD(s) ((s)->enc_heads[1]) -#define INST_HEAD(s) ((s)->enc_heads[2]) -#define ADDR_HEAD(s) ((s)->enc_heads[3]) - -#define TOTAL_MODES(x) (2+(x)->acache.s_same+(x)->acache.s_near) - -/* Template instances. */ -#if XD3_BUILD_SLOW -#define IF_BUILD_SLOW(x) x -#else -#define IF_BUILD_SLOW(x) -#endif -#if XD3_BUILD_FAST -#define IF_BUILD_FAST(x) x -#else -#define IF_BUILD_FAST(x) -#endif -#if XD3_BUILD_FASTER -#define IF_BUILD_FASTER(x) x -#else -#define IF_BUILD_FASTER(x) -#endif -#if XD3_BUILD_FASTEST -#define IF_BUILD_FASTEST(x) x -#else -#define IF_BUILD_FASTEST(x) -#endif -#if XD3_BUILD_SOFT -#define IF_BUILD_SOFT(x) x -#else -#define IF_BUILD_SOFT(x) -#endif -#if XD3_BUILD_DEFAULT -#define IF_BUILD_DEFAULT(x) x -#else -#define IF_BUILD_DEFAULT(x) -#endif - -/* Update the run-length state */ -#define NEXTRUN(c) do { if ((c) == run_c) { run_l += 1; } \ - else { run_c = (c); run_l = 1; } } while (0) - -/* This CPP-conditional stuff can be cleaned up... */ -#if REGRESSION_TEST -#define IF_REGRESSION(x) x -#else -#define IF_REGRESSION(x) -#endif - -/***********************************************************************/ - -#if XD3_ENCODER -static void* xd3_alloc0 (xd3_stream *stream, - usize_t elts, - usize_t size); - - -static int xd3_alloc_iopt (xd3_stream *stream, usize_t elts); - -static void xd3_free_output (xd3_stream *stream, - xd3_output *output); - -static int xd3_emit_double (xd3_stream *stream, xd3_rinst *first, - xd3_rinst *second, usize_t code); -static int xd3_emit_single (xd3_stream *stream, xd3_rinst *single, - usize_t code); - -static usize_t xd3_sizeof_output (xd3_output *output); -static void xd3_encode_reset (xd3_stream *stream); - -static int xd3_source_match_setup (xd3_stream *stream, xoff_t srcpos); -static int xd3_source_extend_match (xd3_stream *stream); -static int xd3_srcwin_setup (xd3_stream *stream); -static usize_t xd3_iopt_last_matched (xd3_stream *stream); -static int xd3_emit_uint32_t (xd3_stream *stream, xd3_output **output, - uint32_t num); - -static usize_t xd3_smatch (xd3_stream *stream, - usize_t base, - usize_t scksum, - usize_t *match_offset); -static int xd3_string_match_init (xd3_stream *stream); -static uint32_t xd3_scksum (uint32_t *state, const uint8_t *seg, - const usize_t ln); -static usize_t xd3_comprun (const uint8_t *seg, usize_t slook, uint8_t *run_cp); -static int xd3_srcwin_move_point (xd3_stream *stream, - usize_t *next_move_point); - -static int xd3_emit_run (xd3_stream *stream, usize_t pos, - usize_t size, uint8_t *run_c); -static usize_t xd3_checksum_hash (const xd3_hash_cfg *cfg, - const usize_t cksum); -static xoff_t xd3_source_cksum_offset(xd3_stream *stream, usize_t low); -static void xd3_scksum_insert (xd3_stream *stream, - usize_t inx, - usize_t scksum, - usize_t pos); - - -#if XD3_DEBUG -static void xd3_verify_run_state (xd3_stream *stream, - const uint8_t *inp, - usize_t x_run_l, - uint8_t *x_run_c); -static void xd3_verify_large_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum); -static void xd3_verify_small_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum); - -#endif /* XD3_DEBUG */ -#endif /* XD3_ENCODER */ - -static int xd3_decode_allocate (xd3_stream *stream, usize_t size, - uint8_t **copied1, usize_t *alloc1); - -static void* xd3_alloc (xd3_stream *stream, usize_t elts, usize_t size); -static void xd3_free (xd3_stream *stream, void *ptr); - -static int xd3_read_uint32_t (xd3_stream *stream, const uint8_t **inpp, - const uint8_t *max, uint32_t *valp); - -#if REGRESSION_TEST -static int xd3_selftest (void); -#endif - -/***********************************************************************/ - -const char* xd3_strerror (int ret) -{ - switch (ret) - { - case XD3_INPUT: return "XD3_INPUT"; - case XD3_OUTPUT: return "XD3_OUTPUT"; - case XD3_GETSRCBLK: return "XD3_GETSRCBLK"; - case XD3_GOTHEADER: return "XD3_GOTHEADER"; - case XD3_WINSTART: return "XD3_WINSTART"; - case XD3_WINFINISH: return "XD3_WINFINISH"; - case XD3_TOOFARBACK: return "XD3_TOOFARBACK"; - case XD3_INTERNAL: return "XD3_INTERNAL"; - case XD3_INVALID: return "XD3_INVALID"; - case XD3_INVALID_INPUT: return "XD3_INVALID_INPUT"; - case XD3_NOSECOND: return "XD3_NOSECOND"; - case XD3_UNIMPLEMENTED: return "XD3_UNIMPLEMENTED"; - } - return NULL; -} - -/***********************************************************************/ - -#define xd3_sec_data(s) ((s)->sec_stream_d) -#define xd3_sec_inst(s) ((s)->sec_stream_i) -#define xd3_sec_addr(s) ((s)->sec_stream_a) - -struct _xd3_sec_type -{ - int id; - const char *name; - xd3_secondary_flags flags; - - /* xd3_sec_stream is opaque to the generic code */ - xd3_sec_stream* (*alloc) (xd3_stream *stream); - void (*destroy) (xd3_stream *stream, - xd3_sec_stream *sec); - int (*init) (xd3_stream *stream, - xd3_sec_stream *sec_stream, - int is_encode); - int (*decode) (xd3_stream *stream, - xd3_sec_stream *sec_stream, - const uint8_t **input, - const uint8_t *input_end, - uint8_t **output, - const uint8_t *output_end); -#if XD3_ENCODER - int (*encode) (xd3_stream *stream, - xd3_sec_stream *sec_stream, - xd3_output *input, - xd3_output *output, - xd3_sec_cfg *cfg); -#endif -}; - -#define BIT_STATE_ENCODE_INIT { 0, 1 } -#define BIT_STATE_DECODE_INIT { 0, 0x100 } - -typedef struct _bit_state bit_state; -struct _bit_state -{ - usize_t cur_byte; - usize_t cur_mask; -}; - -#if SECONDARY_ANY == 0 -#define IF_SEC(x) -#define IF_NSEC(x) x -#else /* yuck */ -#define IF_SEC(x) x -#define IF_NSEC(x) -static int -xd3_decode_secondary (xd3_stream *stream, - xd3_desect *sect, - xd3_sec_stream **sec_streamp); -#if XD3_ENCODER -static int -xd3_encode_secondary (xd3_stream *stream, - xd3_output **head, - xd3_output **tail, - xd3_sec_stream **sec_streamp, - xd3_sec_cfg *cfg, - int *did_it); -#endif -#endif /* SECONDARY_ANY */ - -#if SECONDARY_FGK -extern const xd3_sec_type fgk_sec_type; -#define IF_FGK(x) x -#define FGK_CASE(s) \ - s->sec_type = & fgk_sec_type; \ - break; -#else -#define IF_FGK(x) -#define FGK_CASE(s) \ - s->msg = "unavailable secondary compressor: FGK Adaptive Huffman"; \ - return XD3_INTERNAL; -#endif - -#if SECONDARY_DJW -extern const xd3_sec_type djw_sec_type; -#define IF_DJW(x) x -#define DJW_CASE(s) \ - s->sec_type = & djw_sec_type; \ - break; -#else -#define IF_DJW(x) -#define DJW_CASE(s) \ - s->msg = "unavailable secondary compressor: DJW Static Huffman"; \ - return XD3_INTERNAL; -#endif - -#if SECONDARY_LZMA -extern const xd3_sec_type lzma_sec_type; -#define IF_LZMA(x) x -#define LZMA_CASE(s) \ - s->sec_type = & lzma_sec_type; \ - break; -#else -#define IF_LZMA(x) -#define LZMA_CASE(s) \ - s->msg = "unavailable secondary compressor: LZMA"; \ - return XD3_INTERNAL; -#endif - -/***********************************************************************/ - -#include "xdelta3-hash.h" - -/* Process template passes - this includes xdelta3.c several times. */ -#define __XDELTA3_C_TEMPLATE_PASS__ -#include "xdelta3-cfgs.h" -#undef __XDELTA3_C_TEMPLATE_PASS__ - -/* Process the inline pass. */ -#define __XDELTA3_C_INLINE_PASS__ -#include "xdelta3.c" -#undef __XDELTA3_C_INLINE_PASS__ - -/* Secondary compression */ -#if SECONDARY_ANY -#include "xdelta3-second.h" -#endif - -#if SECONDARY_FGK -#include "xdelta3-fgk.h" -const xd3_sec_type fgk_sec_type = -{ - VCD_FGK_ID, - "FGK Adaptive Huffman", - SEC_NOFLAGS, - (xd3_sec_stream* (*)(xd3_stream*)) fgk_alloc, - (void (*)(xd3_stream*, xd3_sec_stream*)) fgk_destroy, - (int (*)(xd3_stream*, xd3_sec_stream*, int)) fgk_init, - (int (*)(xd3_stream*, xd3_sec_stream*, const uint8_t**, const uint8_t*, - uint8_t**, const uint8_t*)) xd3_decode_fgk, - IF_ENCODER((int (*)(xd3_stream*, xd3_sec_stream*, xd3_output*, - xd3_output*, xd3_sec_cfg*)) xd3_encode_fgk) -}; -#endif - -#if SECONDARY_DJW -#include "xdelta3-djw.h" -const xd3_sec_type djw_sec_type = -{ - VCD_DJW_ID, - "Static Huffman", - SEC_COUNT_FREQS, - (xd3_sec_stream* (*)(xd3_stream*)) djw_alloc, - (void (*)(xd3_stream*, xd3_sec_stream*)) djw_destroy, - (int (*)(xd3_stream*, xd3_sec_stream*, int)) djw_init, - (int (*)(xd3_stream*, xd3_sec_stream*, const uint8_t**, const uint8_t*, - uint8_t**, const uint8_t*)) xd3_decode_huff, - IF_ENCODER((int (*)(xd3_stream*, xd3_sec_stream*, xd3_output*, - xd3_output*, xd3_sec_cfg*)) xd3_encode_huff) -}; -#endif - -#if SECONDARY_LZMA -#include "xdelta3-lzma.h" -const xd3_sec_type lzma_sec_type = -{ - VCD_LZMA_ID, - "lzma", - SEC_NOFLAGS, - (xd3_sec_stream* (*)(xd3_stream*)) xd3_lzma_alloc, - (void (*)(xd3_stream*, xd3_sec_stream*)) xd3_lzma_destroy, - (int (*)(xd3_stream*, xd3_sec_stream*, int)) xd3_lzma_init, - (int (*)(xd3_stream*, xd3_sec_stream*, const uint8_t**, const uint8_t*, - uint8_t**, const uint8_t*)) xd3_decode_lzma, - IF_ENCODER((int (*)(xd3_stream*, xd3_sec_stream*, xd3_output*, - xd3_output*, xd3_sec_cfg*)) xd3_encode_lzma) -}; -#endif - -#if XD3_MAIN || PYTHON_MODULE || SWIG_MODULE || NOT_MAIN -#include "xdelta3-main.h" -#endif - -#if REGRESSION_TEST -#include "xdelta3-test.h" -#endif - -#endif /* __XDELTA3_C_HEADER_PASS__ */ -#ifdef __XDELTA3_C_INLINE_PASS__ - -const uint16_t __single_hash[256] = -{ - /* Random numbers generated using SLIB's pseudo-random number generator. - * This hashes the input alphabet. */ - 0xbcd1, 0xbb65, 0x42c2, 0xdffe, 0x9666, 0x431b, 0x8504, 0xeb46, - 0x6379, 0xd460, 0xcf14, 0x53cf, 0xdb51, 0xdb08, 0x12c8, 0xf602, - 0xe766, 0x2394, 0x250d, 0xdcbb, 0xa678, 0x02af, 0xa5c6, 0x7ea6, - 0xb645, 0xcb4d, 0xc44b, 0xe5dc, 0x9fe6, 0x5b5c, 0x35f5, 0x701a, - 0x220f, 0x6c38, 0x1a56, 0x4ca3, 0xffc6, 0xb152, 0x8d61, 0x7a58, - 0x9025, 0x8b3d, 0xbf0f, 0x95a3, 0xe5f4, 0xc127, 0x3bed, 0x320b, - 0xb7f3, 0x6054, 0x333c, 0xd383, 0x8154, 0x5242, 0x4e0d, 0x0a94, - 0x7028, 0x8689, 0x3a22, 0x0980, 0x1847, 0xb0f1, 0x9b5c, 0x4176, - 0xb858, 0xd542, 0x1f6c, 0x2497, 0x6a5a, 0x9fa9, 0x8c5a, 0x7743, - 0xa8a9, 0x9a02, 0x4918, 0x438c, 0xc388, 0x9e2b, 0x4cad, 0x01b6, - 0xab19, 0xf777, 0x365f, 0x1eb2, 0x091e, 0x7bf8, 0x7a8e, 0x5227, - 0xeab1, 0x2074, 0x4523, 0xe781, 0x01a3, 0x163d, 0x3b2e, 0x287d, - 0x5e7f, 0xa063, 0xb134, 0x8fae, 0x5e8e, 0xb7b7, 0x4548, 0x1f5a, - 0xfa56, 0x7a24, 0x900f, 0x42dc, 0xcc69, 0x02a0, 0x0b22, 0xdb31, - 0x71fe, 0x0c7d, 0x1732, 0x1159, 0xcb09, 0xe1d2, 0x1351, 0x52e9, - 0xf536, 0x5a4f, 0xc316, 0x6bf9, 0x8994, 0xb774, 0x5f3e, 0xf6d6, - 0x3a61, 0xf82c, 0xcc22, 0x9d06, 0x299c, 0x09e5, 0x1eec, 0x514f, - 0x8d53, 0xa650, 0x5c6e, 0xc577, 0x7958, 0x71ac, 0x8916, 0x9b4f, - 0x2c09, 0x5211, 0xf6d8, 0xcaaa, 0xf7ef, 0x287f, 0x7a94, 0xab49, - 0xfa2c, 0x7222, 0xe457, 0xd71a, 0x00c3, 0x1a76, 0xe98c, 0xc037, - 0x8208, 0x5c2d, 0xdfda, 0xe5f5, 0x0b45, 0x15ce, 0x8a7e, 0xfcad, - 0xaa2d, 0x4b5c, 0xd42e, 0xb251, 0x907e, 0x9a47, 0xc9a6, 0xd93f, - 0x085e, 0x35ce, 0xa153, 0x7e7b, 0x9f0b, 0x25aa, 0x5d9f, 0xc04d, - 0x8a0e, 0x2875, 0x4a1c, 0x295f, 0x1393, 0xf760, 0x9178, 0x0f5b, - 0xfa7d, 0x83b4, 0x2082, 0x721d, 0x6462, 0x0368, 0x67e2, 0x8624, - 0x194d, 0x22f6, 0x78fb, 0x6791, 0xb238, 0xb332, 0x7276, 0xf272, - 0x47ec, 0x4504, 0xa961, 0x9fc8, 0x3fdc, 0xb413, 0x007a, 0x0806, - 0x7458, 0x95c6, 0xccaa, 0x18d6, 0xe2ae, 0x1b06, 0xf3f6, 0x5050, - 0xc8e8, 0xf4ac, 0xc04c, 0xf41c, 0x992f, 0xae44, 0x5f1b, 0x1113, - 0x1738, 0xd9a8, 0x19ea, 0x2d33, 0x9698, 0x2fe9, 0x323f, 0xcde2, - 0x6d71, 0xe37d, 0xb697, 0x2c4f, 0x4373, 0x9102, 0x075d, 0x8e25, - 0x1672, 0xec28, 0x6acb, 0x86cc, 0x186e, 0x9414, 0xd674, 0xd1a5 -}; - -/**************************************************************** - Instruction tables - *****************************************************************/ - -/* The following code implements a parametrized description of the - * code table given above for a few reasons. It is not necessary for - * implementing the standard, to support compression with variable - * tables, so an implementation is only required to know the default - * code table to begin decompression. (If the encoder uses an - * alternate table, the table is included in compressed form inside - * the VCDIFF file.) - * - * Before adding variable-table support there were two functions which - * were hard-coded to the default table above. - * xd3_compute_default_table() would create the default table by - * filling a 256-elt array of xd3_dinst values. The corresponding - * function, xd3_choose_instruction(), would choose an instruction - * based on the hard-coded parameters of the default code table. - * - * Notes: The parametrized code table description here only generates - * tables of a certain regularity similar to the default table by - * allowing to vary the distribution of single- and - * double-instructions and change the number of near and same copy - * modes. More exotic tables are only possible by extending this - * code. - * - * For performance reasons, both the parametrized and non-parametrized - * versions of xd3_choose_instruction remain. The parametrized - * version is only needed for testing multi-table decoding support. - * If ever multi-table encoding is required, this can be optimized by - * compiling static functions for each table. - */ - -/* The XD3_CHOOSE_INSTRUCTION calls xd3_choose_instruction with the - * table description when GENERIC_ENCODE_TABLES are in use. The - * IF_GENCODETBL macro enables generic-code-table specific code - * (removed 10/2014). */ -#define XD3_CHOOSE_INSTRUCTION(stream,prev,inst) \ - xd3_choose_instruction (prev, inst) - -/* This structure maintains information needed by - * xd3_choose_instruction to compute the code for a double instruction - * by first indexing an array of code_table_sizes by copy mode, then - * using (offset + (muliplier * X)) */ -struct _xd3_code_table_sizes { - uint8_t cpy_max; - uint8_t offset; - uint8_t mult; -}; - -/* This contains a complete description of a code table. */ -struct _xd3_code_table_desc -{ - /* Assumes a single RUN instruction */ - /* Assumes that MIN_MATCH is 4 */ - - uint8_t add_sizes; /* Number of immediate-size single adds (default 17) */ - uint8_t near_modes; /* Number of near copy modes (default 4) */ - uint8_t same_modes; /* Number of same copy modes (default 3) */ - uint8_t cpy_sizes; /* Number of immediate-size single copies (default 15) */ - - uint8_t addcopy_add_max; /* Maximum add size for an add-copy double instruction, - all modes (default 4) */ - uint8_t addcopy_near_cpy_max; /* Maximum cpy size for an add-copy double instruction, - up through VCD_NEAR modes (default 6) */ - uint8_t addcopy_same_cpy_max; /* Maximum cpy size for an add-copy double instruction, - VCD_SAME modes (default 4) */ - - uint8_t copyadd_add_max; /* Maximum add size for a copy-add double instruction, - all modes (default 1) */ - uint8_t copyadd_near_cpy_max; /* Maximum cpy size for a copy-add double instruction, - up through VCD_NEAR modes (default 4) */ - uint8_t copyadd_same_cpy_max; /* Maximum cpy size for a copy-add double instruction, - VCD_SAME modes (default 4) */ - - xd3_code_table_sizes addcopy_max_sizes[MAX_MODES]; - xd3_code_table_sizes copyadd_max_sizes[MAX_MODES]; -}; - -/* The rfc3284 code table is represented: */ -static const xd3_code_table_desc __rfc3284_code_table_desc = { - 17, /* add sizes */ - 4, /* near modes */ - 3, /* same modes */ - 15, /* copy sizes */ - - 4, /* add-copy max add */ - 6, /* add-copy max cpy, near */ - 4, /* add-copy max cpy, same */ - - 1, /* copy-add max add */ - 4, /* copy-add max cpy, near */ - 4, /* copy-add max cpy, same */ - - /* addcopy */ - { {6,163,3},{6,175,3},{6,187,3},{6,199,3},{6,211,3},{6,223,3},{4,235,1},{4,239,1},{4,243,1} }, - /* copyadd */ - { {4,247,1},{4,248,1},{4,249,1},{4,250,1},{4,251,1},{4,252,1},{4,253,1},{4,254,1},{4,255,1} }, -}; - -/* Computes code table entries of TBL using the specified description. */ -static void -xd3_build_code_table (const xd3_code_table_desc *desc, xd3_dinst *tbl) -{ - usize_t size1, size2, mode; - usize_t cpy_modes = 2 + desc->near_modes + desc->same_modes; - xd3_dinst *d = tbl; - - (d++)->type1 = XD3_RUN; - (d++)->type1 = XD3_ADD; - - for (size1 = 1; size1 <= desc->add_sizes; size1 += 1, d += 1) - { - d->type1 = XD3_ADD; - d->size1 = size1; - } - - for (mode = 0; mode < cpy_modes; mode += 1) - { - (d++)->type1 = XD3_CPY + mode; - - for (size1 = MIN_MATCH; size1 < MIN_MATCH + desc->cpy_sizes; size1 += 1, d += 1) - { - d->type1 = XD3_CPY + mode; - d->size1 = size1; - } - } - - for (mode = 0; mode < cpy_modes; mode += 1) - { - for (size1 = 1; size1 <= desc->addcopy_add_max; size1 += 1) - { - usize_t max = (mode < 2U + desc->near_modes) ? - desc->addcopy_near_cpy_max : - desc->addcopy_same_cpy_max; - - for (size2 = MIN_MATCH; size2 <= max; size2 += 1, d += 1) - { - d->type1 = XD3_ADD; - d->size1 = size1; - d->type2 = XD3_CPY + mode; - d->size2 = size2; - } - } - } - - for (mode = 0; mode < cpy_modes; mode += 1) - { - usize_t max = (mode < 2U + desc->near_modes) ? - desc->copyadd_near_cpy_max : - desc->copyadd_same_cpy_max; - - for (size1 = MIN_MATCH; size1 <= max; size1 += 1) - { - for (size2 = 1; size2 <= desc->copyadd_add_max; size2 += 1, d += 1) - { - d->type1 = XD3_CPY + mode; - d->size1 = size1; - d->type2 = XD3_ADD; - d->size2 = size2; - } - } - } - - XD3_ASSERT (d - tbl == 256); -} - -/* This function generates the static default code table. */ -static const xd3_dinst* -xd3_rfc3284_code_table (void) -{ - static xd3_dinst __rfc3284_code_table[256]; - - if (__rfc3284_code_table[0].type1 != XD3_RUN) - { - xd3_build_code_table (& __rfc3284_code_table_desc, __rfc3284_code_table); - } - - return __rfc3284_code_table; -} - -#if XD3_ENCODER -/* This version of xd3_choose_instruction is hard-coded for the default - table. */ -static void -xd3_choose_instruction (xd3_rinst *prev, xd3_rinst *inst) -{ - switch (inst->type) - { - case XD3_RUN: - inst->code1 = 0; - break; - - case XD3_ADD: - inst->code1 = 1; - - if (inst->size <= 17) - { - inst->code1 += inst->size; - - if ( (inst->size == 1) && - (prev != NULL) && - (prev->size == 4) && - (prev->type >= XD3_CPY) ) - { - prev->code2 = 247 + (prev->type - XD3_CPY); - } - } - - break; - - default: - { - int mode = inst->type - XD3_CPY; - - XD3_ASSERT (inst->type >= XD3_CPY && inst->type < 12); - - inst->code1 = 19 + 16 * mode; - - if (inst->size <= 18 && inst->size >= 4) - { - inst->code1 += inst->size - 3; - - if ( (prev != NULL) && - (prev->type == XD3_ADD) && - (prev->size <= 4) ) - { - if ( (inst->size <= 6) && - (mode <= 5) ) - { - prev->code2 = 163 + (mode * 12) + (3 * (prev->size - 1)) + (inst->size - 4); - - XD3_ASSERT (prev->code2 <= 234); - } - else if ( (inst->size == 4) && - (mode >= 6) ) - { - prev->code2 = 235 + ((mode - 6) * 4) + (prev->size - 1); - - XD3_ASSERT (prev->code2 <= 246); - } - } - } - - XD3_ASSERT (inst->code1 <= 162); - } - break; - } -} -#endif /* XD3_ENCODER */ - -/***********************************************************************/ - -static inline void -xd3_swap_uint8p (uint8_t** p1, uint8_t** p2) -{ - uint8_t *t = (*p1); - (*p1) = (*p2); - (*p2) = t; -} - -static inline void -xd3_swap_usize_t (usize_t* p1, usize_t* p2) -{ - usize_t t = (*p1); - (*p1) = (*p2); - (*p2) = t; -} - -/* It's not constant time, but it computes the log. */ -static int -xd3_check_pow2 (xoff_t value, usize_t *logof) -{ - xoff_t x = 1; - usize_t nolog; - if (logof == NULL) { - logof = &nolog; - } - - *logof = 0; - - for (; x != 0; x <<= 1, *logof += 1) - { - if (x == value) - { - return 0; - } - } - - return XD3_INTERNAL; -} - -size_t -xd3_pow2_roundup (size_t x) -{ - size_t i = 1; - while (x > i) { - i <<= 1U; - } - return i; -} - -static xoff_t -xd3_xoff_roundup (xoff_t x) -{ - xoff_t i = 1; - while (x > i) { - i <<= 1U; - } - return i; -} - -static usize_t -xd3_round_blksize (usize_t sz, usize_t blksz) -{ - usize_t mod = sz & (blksz-1); - - XD3_ASSERT (xd3_check_pow2 (blksz, NULL) == 0); - - if (mod == 0) - { - return sz; - } - - if (sz > USIZE_T_MAXBLKSZ) - { - return USIZE_T_MAXBLKSZ; - } - - return sz + (blksz - mod); -} - -/*********************************************************************** - Adler32 stream function: code copied from Zlib, defined in RFC1950 - ***********************************************************************/ - -#define A32_BASE 65521L /* Largest prime smaller than 2^16 */ -#define A32_NMAX 5552 /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#define A32_DO1(buf,i) {s1 += buf[i]; s2 += s1;} -#define A32_DO2(buf,i) A32_DO1(buf,i); A32_DO1(buf,i+1); -#define A32_DO4(buf,i) A32_DO2(buf,i); A32_DO2(buf,i+2); -#define A32_DO8(buf,i) A32_DO4(buf,i); A32_DO4(buf,i+4); -#define A32_DO16(buf) A32_DO8(buf,0); A32_DO8(buf,8); - -static unsigned long adler32 (unsigned long adler, const uint8_t *buf, - usize_t len) -{ - unsigned long s1 = adler & 0xffff; - unsigned long s2 = (adler >> 16) & 0xffff; - int k; - - while (len > 0) - { - k = (len < A32_NMAX) ? len : A32_NMAX; - len -= k; - - while (k >= 16) - { - A32_DO16(buf); - buf += 16; - k -= 16; - } - - if (k != 0) - { - do - { - s1 += *buf++; - s2 += s1; - } - while (--k); - } - - s1 %= A32_BASE; - s2 %= A32_BASE; - } - - return (s2 << 16) | s1; -} - -/*********************************************************************** - Run-length function - ***********************************************************************/ - -#if XD3_ENCODER -static usize_t -xd3_comprun (const uint8_t *seg, usize_t slook, uint8_t *run_cp) -{ - usize_t i; - usize_t run_l = 0; - uint8_t run_c = 0; - - for (i = 0; i < slook; i += 1) - { - NEXTRUN(seg[i]); - } - - (*run_cp) = run_c; - - return run_l; -} -#endif - -/*********************************************************************** - Basic encoder/decoder functions - ***********************************************************************/ - -#if XD3_ENCODER -inline int -xd3_emit_byte (xd3_stream *stream, - xd3_output **outputp, - uint8_t code) -{ - xd3_output *output = (*outputp); - - if (output->next == output->avail) - { - xd3_output *aoutput; - - if ((aoutput = xd3_alloc_output (stream, output)) == NULL) - { - return ENOMEM; - } - - output = (*outputp) = aoutput; - } - - output->base[output->next++] = code; - - return 0; -} - -inline int -xd3_emit_bytes (xd3_stream *stream, - xd3_output **outputp, - const uint8_t *base, - usize_t size) -{ - xd3_output *output = (*outputp); - - do - { - usize_t take; - - if (output->next == output->avail) - { - xd3_output *aoutput; - - if ((aoutput = xd3_alloc_output (stream, output)) == NULL) - { - return ENOMEM; - } - - output = (*outputp) = aoutput; - } - - take = xd3_min (output->avail - output->next, size); - - memcpy (output->base + output->next, base, (size_t) take); - - output->next += take; - size -= take; - base += take; - } - while (size > 0); - - return 0; -} -#endif /* XD3_ENCODER */ - -/*********************************************************************** - Address cache stuff - ***********************************************************************/ - -static int -xd3_alloc_cache (xd3_stream *stream) -{ - if (stream->acache.near_array != NULL) - { - xd3_free (stream, stream->acache.near_array); - } - - if (stream->acache.same_array != NULL) - { - xd3_free (stream, stream->acache.same_array); - } - - if (((stream->acache.s_near > 0) && - (stream->acache.near_array = (usize_t*) - xd3_alloc (stream, stream->acache.s_near, - (usize_t) sizeof (usize_t))) - == NULL) || - ((stream->acache.s_same > 0) && - (stream->acache.same_array = (usize_t*) - xd3_alloc (stream, stream->acache.s_same * 256, - (usize_t) sizeof (usize_t))) - == NULL)) - { - return ENOMEM; - } - - return 0; -} - -void -xd3_init_cache (xd3_addr_cache* acache) -{ - if (acache->s_near > 0) - { - memset (acache->near_array, 0, acache->s_near * sizeof (usize_t)); - acache->next_slot = 0; - } - - if (acache->s_same > 0) - { - memset (acache->same_array, 0, acache->s_same * 256 * sizeof (usize_t)); - } -} - -static void -xd3_update_cache (xd3_addr_cache* acache, usize_t addr) -{ - if (acache->s_near > 0) - { - acache->near_array[acache->next_slot] = addr; - acache->next_slot = (acache->next_slot + 1) % acache->s_near; - } - - if (acache->s_same > 0) - { - acache->same_array[addr % (acache->s_same*256)] = addr; - } -} - -#if XD3_ENCODER -/* OPT: this gets called a lot, can it be optimized? */ -static int -xd3_encode_address (xd3_stream *stream, - usize_t addr, - usize_t here, - uint8_t* mode) -{ - usize_t d, bestd; - usize_t i, bestm, ret; - xd3_addr_cache* acache = & stream->acache; - -#define SMALLEST_INT(x) do { if (((x) & ~127U) == 0) { goto good; } } while (0) - - /* Attempt to find the address mode that yields the smallest integer value - * for "d", the encoded address value, thereby minimizing the encoded size - * of the address. */ - bestd = addr; - bestm = VCD_SELF; - - XD3_ASSERT (addr < here); - - SMALLEST_INT (bestd); - - if ((d = here-addr) < bestd) - { - bestd = d; - bestm = VCD_HERE; - - SMALLEST_INT (bestd); - } - - for (i = 0; i < acache->s_near; i += 1) - { - /* Note: If we used signed computation here, we'd could compte d - * and then check (d >= 0 && d < bestd). */ - if (addr >= acache->near_array[i]) - { - d = addr - acache->near_array[i]; - - if (d < bestd) - { - bestd = d; - bestm = i+2; /* 2 counts the VCD_SELF, VCD_HERE modes */ - - SMALLEST_INT (bestd); - } - } - } - - if (acache->s_same > 0 && - acache->same_array[d = addr%(acache->s_same*256)] == addr) - { - bestd = d%256; - /* 2 + s_near offsets past the VCD_NEAR modes */ - bestm = acache->s_near + 2 + d/256; - - if ((ret = xd3_emit_byte (stream, & ADDR_TAIL (stream), bestd))) - { - return ret; - } - } - else - { - good: - - if ((ret = xd3_emit_size (stream, & ADDR_TAIL (stream), bestd))) - { - return ret; - } - } - - xd3_update_cache (acache, addr); - - (*mode) += bestm; - - return 0; -} -#endif - -static int -xd3_decode_address (xd3_stream *stream, usize_t here, - usize_t mode, const uint8_t **inpp, - const uint8_t *max, uint32_t *valp) -{ - int ret; - usize_t same_start = 2 + stream->acache.s_near; - - if (mode < same_start) - { - if ((ret = xd3_read_size (stream, inpp, max, valp))) { return ret; } - - switch (mode) - { - case VCD_SELF: - break; - case VCD_HERE: - (*valp) = here - (*valp); - break; - default: - (*valp) += stream->acache.near_array[mode - 2]; - break; - } - } - else - { - if (*inpp == max) - { - stream->msg = "address underflow"; - return XD3_INVALID_INPUT; - } - - mode -= same_start; - - (*valp) = stream->acache.same_array[mode*256 + (**inpp)]; - - (*inpp) += 1; - } - - xd3_update_cache (& stream->acache, *valp); - - return 0; -} - -/*********************************************************************** - Alloc/free -***********************************************************************/ - -static void* -__xd3_alloc_func (void* opaque, size_t items, usize_t size) -{ - return malloc (items * (size_t) size); -} - -static void -__xd3_free_func (void* opaque, void* address) -{ - free (address); -} - -static void* -xd3_alloc (xd3_stream *stream, - usize_t elts, - usize_t size) -{ - void *a = stream->alloc (stream->opaque, elts, size); - - if (a != NULL) - { - IF_DEBUG (stream->alloc_cnt += 1); - IF_DEBUG2 (DP(RINT "[stream %p malloc] size %u ptr %p\n", - stream, elts * size, a)); - } - else - { - stream->msg = "out of memory"; - } - - return a; -} - -static void -xd3_free (xd3_stream *stream, - void *ptr) -{ - if (ptr != NULL) - { - IF_DEBUG (stream->free_cnt += 1); - XD3_ASSERT (stream->free_cnt <= stream->alloc_cnt); - IF_DEBUG2 (DP(RINT "[stream %p free] %p\n", - stream, ptr)); - stream->free (stream->opaque, ptr); - } -} - -#if XD3_ENCODER -static void* -xd3_alloc0 (xd3_stream *stream, - usize_t elts, - usize_t size) -{ - void *a = xd3_alloc (stream, elts, size); - - if (a != NULL) - { - memset (a, 0, (size_t) (elts * size)); - } - - return a; -} - -xd3_output* -xd3_alloc_output (xd3_stream *stream, - xd3_output *old_output) -{ - xd3_output *output; - uint8_t *base; - - if (stream->enc_free != NULL) - { - output = stream->enc_free; - stream->enc_free = output->next_page; - } - else - { - if ((output = (xd3_output*) xd3_alloc (stream, 1, - (usize_t) sizeof (xd3_output))) - == NULL) - { - return NULL; - } - - if ((base = (uint8_t*) xd3_alloc (stream, XD3_ALLOCSIZE, - sizeof (uint8_t))) == NULL) - { - xd3_free (stream, output); - return NULL; - } - - output->base = base; - output->avail = XD3_ALLOCSIZE; - } - - output->next = 0; - - if (old_output) - { - old_output->next_page = output; - } - - output->next_page = NULL; - - return output; -} - -static usize_t -xd3_sizeof_output (xd3_output *output) -{ - usize_t s = 0; - - for (; output; output = output->next_page) - { - s += output->next; - } - - return s; -} - -static void -xd3_freelist_output (xd3_stream *stream, - xd3_output *output) -{ - xd3_output *tmp; - - while (output) - { - tmp = output; - output = output->next_page; - - tmp->next = 0; - tmp->next_page = stream->enc_free; - stream->enc_free = tmp; - } -} - -static void -xd3_free_output (xd3_stream *stream, - xd3_output *output) -{ - xd3_output *next; - - again: - if (output == NULL) - { - return; - } - - next = output->next_page; - - xd3_free (stream, output->base); - xd3_free (stream, output); - - output = next; - goto again; -} -#endif /* XD3_ENCODER */ - -void -xd3_free_stream (xd3_stream *stream) -{ - xd3_iopt_buflist *blist = stream->iopt_alloc; - - while (blist != NULL) - { - xd3_iopt_buflist *tmp = blist; - blist = blist->next; - xd3_free (stream, tmp->buffer); - xd3_free (stream, tmp); - } - - xd3_free (stream, stream->large_table); - xd3_free (stream, stream->small_table); - xd3_free (stream, stream->small_prev); - -#if XD3_ENCODER - { - int i; - for (i = 0; i < ENC_SECTS; i += 1) - { - xd3_free_output (stream, stream->enc_heads[i]); - } - xd3_free_output (stream, stream->enc_free); - } -#endif - - xd3_free (stream, stream->acache.near_array); - xd3_free (stream, stream->acache.same_array); - - xd3_free (stream, stream->inst_sect.copied1); - xd3_free (stream, stream->addr_sect.copied1); - xd3_free (stream, stream->data_sect.copied1); - - if (stream->dec_lastwin != stream->dec_buffer) - { - xd3_free (stream, (uint8_t*) stream->dec_lastwin); - } - xd3_free (stream, stream->dec_buffer); - - xd3_free (stream, stream->buf_in); - xd3_free (stream, stream->dec_appheader); - xd3_free (stream, stream->dec_codetbl); - xd3_free (stream, stream->code_table_alloc); - -#if SECONDARY_ANY - xd3_free (stream, stream->inst_sect.copied2); - xd3_free (stream, stream->addr_sect.copied2); - xd3_free (stream, stream->data_sect.copied2); - - if (stream->sec_type != NULL) - { - stream->sec_type->destroy (stream, stream->sec_stream_d); - stream->sec_type->destroy (stream, stream->sec_stream_i); - stream->sec_type->destroy (stream, stream->sec_stream_a); - } -#endif - - xd3_free (stream, stream->whole_target.adds); - xd3_free (stream, stream->whole_target.inst); - xd3_free (stream, stream->whole_target.wininfo); - - XD3_ASSERT (stream->alloc_cnt == stream->free_cnt); - - memset (stream, 0, sizeof (xd3_stream)); -} - -#if (XD3_DEBUG > 1 || VCDIFF_TOOLS) -static const char* -xd3_rtype_to_string (xd3_rtype type, int print_mode) -{ - switch (type) - { - case XD3_NOOP: - return "NOOP "; - case XD3_RUN: - return "RUN "; - case XD3_ADD: - return "ADD "; - default: break; - } - if (! print_mode) - { - return "CPY "; - } - switch (type) - { - case XD3_CPY + 0: return "CPY_0"; - case XD3_CPY + 1: return "CPY_1"; - case XD3_CPY + 2: return "CPY_2"; - case XD3_CPY + 3: return "CPY_3"; - case XD3_CPY + 4: return "CPY_4"; - case XD3_CPY + 5: return "CPY_5"; - case XD3_CPY + 6: return "CPY_6"; - case XD3_CPY + 7: return "CPY_7"; - case XD3_CPY + 8: return "CPY_8"; - case XD3_CPY + 9: return "CPY_9"; - default: return "CPY>9"; - } -} -#endif - -/**************************************************************** - Stream configuration - ******************************************************************/ - -int -xd3_config_stream(xd3_stream *stream, - xd3_config *config) -{ - int ret; - xd3_config defcfg; - xd3_smatcher *smatcher = &stream->smatcher; - - if (config == NULL) - { - config = & defcfg; - memset (config, 0, sizeof (*config)); - } - - /* Initial setup: no error checks yet */ - memset (stream, 0, sizeof (*stream)); - - stream->winsize = config->winsize ? config->winsize : XD3_DEFAULT_WINSIZE; - stream->sprevsz = config->sprevsz ? config->sprevsz : XD3_DEFAULT_SPREVSZ; - - if (config->iopt_size == 0) - { - stream->iopt_size = XD3_ALLOCSIZE / sizeof(xd3_rinst); - stream->iopt_unlimited = 1; - } - else - { - stream->iopt_size = config->iopt_size; - } - - stream->getblk = config->getblk; - stream->alloc = config->alloc ? config->alloc : __xd3_alloc_func; - stream->free = config->freef ? config->freef : __xd3_free_func; - stream->opaque = config->opaque; - stream->flags = config->flags; - - /* Secondary setup. */ - stream->sec_data = config->sec_data; - stream->sec_inst = config->sec_inst; - stream->sec_addr = config->sec_addr; - - stream->sec_data.data_type = DATA_SECTION; - stream->sec_inst.data_type = INST_SECTION; - stream->sec_addr.data_type = ADDR_SECTION; - - /* Check static sizes. */ - if (sizeof (usize_t) != SIZEOF_USIZE_T || - sizeof (xoff_t) != SIZEOF_XOFF_T || - (ret = xd3_check_pow2(XD3_ALLOCSIZE, NULL))) - { - stream->msg = "incorrect compilation: wrong integer sizes"; - return XD3_INTERNAL; - } - - /* Check/set secondary compressor. */ - switch (stream->flags & XD3_SEC_TYPE) - { - case 0: - if (stream->flags & XD3_SEC_NOALL) - { - stream->msg = "XD3_SEC flags require a secondary compressor type"; - return XD3_INTERNAL; - } - break; - case XD3_SEC_FGK: - FGK_CASE (stream); - case XD3_SEC_DJW: - DJW_CASE (stream); - case XD3_SEC_LZMA: - LZMA_CASE (stream); - default: - stream->msg = "too many secondary compressor types set"; - return XD3_INTERNAL; - } - - stream->code_table_desc = & __rfc3284_code_table_desc; - stream->code_table_func = xd3_rfc3284_code_table; - - /* Check sprevsz */ - if (smatcher->small_chain == 1 && - smatcher->small_lchain == 1) - { - stream->sprevsz = 0; - } - else - { - if ((ret = xd3_check_pow2 (stream->sprevsz, NULL))) - { - stream->msg = "sprevsz is required to be a power of two"; - return XD3_INTERNAL; - } - - stream->sprevmask = stream->sprevsz - 1; - } - - /* Default scanner settings. */ -#if XD3_ENCODER - switch (config->smatch_cfg) - { - IF_BUILD_SOFT(case XD3_SMATCH_SOFT: - { - *smatcher = config->smatcher_soft; - smatcher->string_match = __smatcher_soft.string_match; - smatcher->name = __smatcher_soft.name; - if (smatcher->large_look < MIN_MATCH || - smatcher->large_step < 1 || - smatcher->small_look < MIN_MATCH) - { - stream->msg = "invalid soft string-match config"; - return XD3_INVALID; - } - break; - }) - - IF_BUILD_DEFAULT(case XD3_SMATCH_DEFAULT: - *smatcher = __smatcher_default; - break;) - IF_BUILD_SLOW(case XD3_SMATCH_SLOW: - *smatcher = __smatcher_slow; - break;) - IF_BUILD_FASTEST(case XD3_SMATCH_FASTEST: - *smatcher = __smatcher_fastest; - break;) - IF_BUILD_FASTER(case XD3_SMATCH_FASTER: - *smatcher = __smatcher_faster; - break;) - IF_BUILD_FAST(case XD3_SMATCH_FAST: - *smatcher = __smatcher_fast; - break;) - default: - stream->msg = "invalid string match config type"; - return XD3_INTERNAL; - } - - if (config->smatch_cfg == XD3_SMATCH_DEFAULT && - (stream->flags & XD3_COMPLEVEL_MASK) != 0) - { - int level = (stream->flags & XD3_COMPLEVEL_MASK) >> XD3_COMPLEVEL_SHIFT; - - switch (level) - { - case 1: - IF_BUILD_FASTEST(*smatcher = __smatcher_fastest; - break;) - case 2: - IF_BUILD_FASTER(*smatcher = __smatcher_faster; - break;) - case 3: case 4: case 5: - IF_BUILD_FAST(*smatcher = __smatcher_fast; - break;) - case 6: - IF_BUILD_DEFAULT(*smatcher = __smatcher_default; - break;) - default: - IF_BUILD_SLOW(*smatcher = __smatcher_slow; - break;) - IF_BUILD_DEFAULT(*smatcher = __smatcher_default; - break;) - IF_BUILD_FAST(*smatcher = __smatcher_fast; - break;) - IF_BUILD_FASTER(*smatcher = __smatcher_faster; - break;) - IF_BUILD_FASTEST(*smatcher = __smatcher_fastest; - break;) - } - } -#endif - - return 0; -} - -/*********************************************************** - Getblk interface - ***********************************************************/ - -inline -xoff_t xd3_source_eof(const xd3_source *src) -{ - xoff_t r = (src->max_blkno << src->shiftby) + (xoff_t)src->onlastblk; - return r; -} - -inline -usize_t xd3_bytes_on_srcblk (xd3_source *src, xoff_t blkno) -{ - usize_t r = (blkno == src->max_blkno ? - src->onlastblk : - src->blksize); - return r; -} - -/* This function interfaces with the client getblk function, checks - * its results, updates max_blkno, onlastblk, eof_known. */ -static int -xd3_getblk (xd3_stream *stream, xoff_t blkno) -{ - int ret; - xd3_source *source = stream->src; - - if (source->curblk == NULL || blkno != source->curblkno) - { - source->getblkno = blkno; - - if (stream->getblk == NULL) - { - IF_DEBUG2 (DP(RINT "[getblk] XD3_GETSRCBLK %"Q"u\n", blkno)); - stream->msg = "getblk source input"; - return XD3_GETSRCBLK; - } - - ret = stream->getblk (stream, source, blkno); - if (ret != 0) - { - IF_DEBUG2 (DP(RINT "[getblk] app error blkno %"Q"u: %s\n", - blkno, xd3_strerror (ret))); - return ret; - } - - IF_DEBUG2 (DP(RINT "[getblk] read source block %"Q"u onblk " - "%u blksize %u max_blkno %"Q"u\n", blkno, source->onblk, - source->blksize, source->max_blkno)); - } - - if (blkno > source->max_blkno) - { - source->max_blkno = blkno; - - if (source->onblk == source->blksize) - { - IF_DEBUG1 (DP(RINT "[getblk] full source blkno %"Q"u: " - "source length unknown %"Q"u\n", - blkno, - xd3_source_eof (source))); - } - else if (!source->eof_known) - { - IF_DEBUG1 (DP(RINT "[getblk] eof block has %d bytes; " - "source length known %"Q"u\n", - xd3_bytes_on_srcblk (source, blkno), - xd3_source_eof (source))); - source->eof_known = 1; - } - } - - XD3_ASSERT (source->curblk != NULL); - - if (blkno == source->max_blkno) - { - /* In case the application sets the source as 1 block w/ a - * preset buffer. */ - source->onlastblk = source->onblk; - } - return 0; -} - -/*********************************************************** - Stream open/close - ***************************************************************/ - -int -xd3_set_source (xd3_stream *stream, - xd3_source *src) -{ - usize_t shiftby; - - stream->src = src; - src->srclen = 0; - src->srcbase = 0; - - /* Enforce power-of-two blocksize so that source-block number - * calculations are cheap. */ - if (xd3_check_pow2 (src->blksize, &shiftby) != 0) - { - src->blksize = xd3_pow2_roundup(src->blksize); - xd3_check_pow2 (src->blksize, &shiftby); - IF_DEBUG1 (DP(RINT "raising src_blksz to %u\n", src->blksize)); - } - - src->shiftby = shiftby; - src->maskby = (1 << shiftby) - 1; - - if (xd3_check_pow2 (src->max_winsize, NULL) != 0) - { - src->max_winsize = xd3_xoff_roundup(src->max_winsize); - IF_DEBUG1 (DP(RINT "raising src_maxsize to %u\n", src->blksize)); - } - src->max_winsize = xd3_max (src->max_winsize, XD3_ALLOCSIZE); - return 0; -} - -int -xd3_set_source_and_size (xd3_stream *stream, - xd3_source *user_source, - xoff_t source_size) { - int ret = xd3_set_source (stream, user_source); - if (ret == 0) - { - stream->src->eof_known = 1; - - xd3_blksize_div(source_size, - stream->src, - &stream->src->max_blkno, - &stream->src->onlastblk); - - IF_DEBUG1 (DP(RINT "[set source] size known %"Q"u max_blkno %"Q"u\n", - source_size, stream->src->max_blkno)); - } - return ret; -} - -void -xd3_abort_stream (xd3_stream *stream) -{ - stream->dec_state = DEC_ABORTED; - stream->enc_state = ENC_ABORTED; -} - -int -xd3_close_stream (xd3_stream *stream) -{ - if (stream->enc_state != 0 && stream->enc_state != ENC_ABORTED) - { - if (stream->buf_leftover != NULL) - { - stream->msg = "encoding is incomplete"; - return XD3_INTERNAL; - } - - if (stream->enc_state == ENC_POSTWIN) - { -#if XD3_ENCODER - xd3_encode_reset (stream); -#endif - stream->current_window += 1; - stream->enc_state = ENC_INPUT; - } - - /* If encoding, should be ready for more input but not actually - have any. */ - if (stream->enc_state != ENC_INPUT || stream->avail_in != 0) - { - stream->msg = "encoding is incomplete"; - return XD3_INTERNAL; - } - } - else - { - switch (stream->dec_state) - { - case DEC_VCHEAD: - case DEC_WININD: - /* TODO: Address the zero-byte ambiguity. Does the encoder - * emit a window or not? If so, then catch an error here. - * If not, need another routine to say - * decode_at_least_one_if_empty. */ - case DEC_ABORTED: - break; - default: - /* If decoding, should be ready for the next window. */ - stream->msg = "eof in decode"; - return XD3_INVALID_INPUT; - } - } - - return 0; -} - -/************************************************************** - Application header - ****************************************************************/ - -int -xd3_get_appheader (xd3_stream *stream, - uint8_t **data, - usize_t *size) -{ - if (stream->dec_state < DEC_WININD) - { - stream->msg = "application header not available"; - return XD3_INTERNAL; - } - - (*data) = stream->dec_appheader; - (*size) = stream->dec_appheadsz; - return 0; -} - -/********************************************************** - Decoder stuff - *************************************************/ - -#include "xdelta3-decode.h" - -/**************************************************************** - Encoder stuff - *****************************************************************/ - -#if XD3_ENCODER -void -xd3_set_appheader (xd3_stream *stream, - const uint8_t *data, - usize_t size) -{ - stream->enc_appheader = data; - stream->enc_appheadsz = size; -} - -#if XD3_DEBUG -static int -xd3_iopt_check (xd3_stream *stream) -{ - usize_t ul = xd3_rlist_length (& stream->iopt_used); - usize_t fl = xd3_rlist_length (& stream->iopt_free); - - return (ul + fl + (stream->iout ? 1 : 0)) == stream->iopt_size; -} -#endif - -static xd3_rinst* -xd3_iopt_free (xd3_stream *stream, xd3_rinst *i) -{ - xd3_rinst *n = xd3_rlist_remove (i); - xd3_rlist_push_back (& stream->iopt_free, i); - return n; -} - -static void -xd3_iopt_free_nonadd (xd3_stream *stream, xd3_rinst *i) -{ - if (i->type != XD3_ADD) - { - xd3_rlist_push_back (& stream->iopt_free, i); - } -} - -/* When an instruction is ready to flush from the iopt buffer, this - * function is called to produce an encoding. It writes the - * instruction plus size, address, and data to the various encoding - * sections. */ -static int -xd3_iopt_finish_encoding (xd3_stream *stream, xd3_rinst *inst) -{ - int ret; - - /* Check for input overflow. */ - XD3_ASSERT (inst->pos + inst->size <= stream->avail_in); - - switch (inst->type) - { - case XD3_CPY: - { - /* the address may have an offset if there is a source window. */ - usize_t addr; - xd3_source *src = stream->src; - - if (src != NULL) - { - /* If there is a source copy, the source must have its - * source window decided before we can encode. This can - * be bad -- we have to make this decision even if no - * source matches have been found. */ - if (stream->srcwin_decided == 0) - { - if ((ret = xd3_srcwin_setup (stream))) { return ret; } - } - else - { - stream->srcwin_decided_early = (!stream->src->eof_known || - (stream->srcwin_cksum_pos < - xd3_source_eof (stream->src))); - } - - /* xtra field indicates the copy is from the source */ - if (inst->xtra) - { - XD3_ASSERT (inst->addr >= src->srcbase); - XD3_ASSERT (inst->addr + inst->size <= - src->srcbase + src->srclen); - addr = (usize_t)(inst->addr - src->srcbase); - stream->n_scpy += 1; - stream->l_scpy += (xoff_t) inst->size; - } - else - { - /* with source window: target copy address is offset - * by taroff. */ - addr = stream->taroff + (usize_t) inst->addr; - stream->n_tcpy += 1; - stream->l_tcpy += (xoff_t) inst->size; - } - } - else - { - addr = (usize_t) inst->addr; - stream->n_tcpy += 1; - stream->l_tcpy += inst->size; - } - - /* Note: used to assert inst->size >= MIN_MATCH, but not true - * for merge operations & identical match heuristics. */ - /* the "here" position is always offset by taroff */ - if ((ret = xd3_encode_address (stream, addr, inst->pos + stream->taroff, - & inst->type))) - { - return ret; - } - - IF_DEBUG2 ({ - static int cnt; - DP(RINT "[iopt copy:%d] pos %"Q"u-%"Q"u addr %"Q"u-%"Q"u size %u\n", - cnt++, - stream->total_in + inst->pos, - stream->total_in + inst->pos + inst->size, - inst->addr, inst->addr + inst->size, inst->size); - }); - break; - } - case XD3_RUN: - { - if ((ret = xd3_emit_byte (stream, & DATA_TAIL (stream), inst->xtra))) { return ret; } - - stream->n_run += 1; - stream->l_run += inst->size; - - IF_DEBUG2 ({ - static int cnt; - DP(RINT "[iopt run:%d] pos %"Q"u size %u\n", cnt++, stream->total_in + inst->pos, inst->size); - }); - break; - } - case XD3_ADD: - { - if ((ret = xd3_emit_bytes (stream, & DATA_TAIL (stream), - stream->next_in + inst->pos, inst->size))) { return ret; } - - stream->n_add += 1; - stream->l_add += inst->size; - - IF_DEBUG2 ({ - static int cnt; - DP(RINT "[iopt add:%d] pos %"Q"u size %u\n", cnt++, stream->total_in + inst->pos, inst->size); - }); - - break; - } - } - - /* This is the only place stream->unencoded_offset is incremented. */ - XD3_ASSERT (stream->unencoded_offset == inst->pos); - stream->unencoded_offset += inst->size; - - inst->code2 = 0; - - XD3_CHOOSE_INSTRUCTION (stream, stream->iout, inst); - - if (stream->iout != NULL) - { - if (stream->iout->code2 != 0) - { - if ((ret = xd3_emit_double (stream, stream->iout, inst, stream->iout->code2))) { return ret; } - - xd3_iopt_free_nonadd (stream, stream->iout); - xd3_iopt_free_nonadd (stream, inst); - stream->iout = NULL; - return 0; - } - else - { - if ((ret = xd3_emit_single (stream, stream->iout, stream->iout->code1))) { return ret; } - - xd3_iopt_free_nonadd (stream, stream->iout); - } - } - - stream->iout = inst; - - return 0; -} - -/* This possibly encodes an add instruction, iadd, which must remain - * on the stack until the following call to - * xd3_iopt_finish_encoding. */ -static int -xd3_iopt_add (xd3_stream *stream, usize_t pos, xd3_rinst *iadd) -{ - int ret; - usize_t off = stream->unencoded_offset; - - if (pos > off) - { - iadd->type = XD3_ADD; - iadd->pos = off; - iadd->size = pos - off; - - if ((ret = xd3_iopt_finish_encoding (stream, iadd))) { return ret; } - } - - return 0; -} - -/* This function calls xd3_iopt_finish_encoding to finish encoding an - * instruction, and it may also produce an add instruction for an - * unmatched region. */ -static int -xd3_iopt_add_encoding (xd3_stream *stream, xd3_rinst *inst) -{ - int ret; - xd3_rinst iadd; - - if ((ret = xd3_iopt_add (stream, inst->pos, & iadd))) { return ret; } - - if ((ret = xd3_iopt_finish_encoding (stream, inst))) { return ret; } - - return 0; -} - -/* Generates a final add instruction to encode the remaining input. */ -static int -xd3_iopt_add_finalize (xd3_stream *stream) -{ - int ret; - xd3_rinst iadd; - - if ((ret = xd3_iopt_add (stream, stream->avail_in, & iadd))) { return ret; } - - if (stream->iout) - { - if ((ret = xd3_emit_single (stream, stream->iout, stream->iout->code1))) { return ret; } - - xd3_iopt_free_nonadd (stream, stream->iout); - stream->iout = NULL; - } - - return 0; -} - -/* Compact the instruction buffer by choosing the best non-overlapping - * instructions when lazy string-matching. There are no ADDs in the - * iopt buffer because those are synthesized in xd3_iopt_add_encoding - * and during xd3_iopt_add_finalize. */ -static int -xd3_iopt_flush_instructions (xd3_stream *stream, int force) -{ - xd3_rinst *r1 = xd3_rlist_front (& stream->iopt_used); - xd3_rinst *r2; - xd3_rinst *r3; - usize_t r1end; - usize_t r2end; - usize_t r2off; - usize_t r2moff; - usize_t gap; - usize_t flushed; - int ret; - - XD3_ASSERT (xd3_iopt_check (stream)); - - /* Note: once tried to skip this step if it's possible to assert - * there are no overlapping instructions. Doesn't work because - * xd3_opt_erase leaves overlapping instructions. */ - while (! xd3_rlist_end (& stream->iopt_used, r1) && - ! xd3_rlist_end (& stream->iopt_used, r2 = xd3_rlist_next (r1))) - { - r1end = r1->pos + r1->size; - - /* If the instructions do not overlap, continue. */ - if (r1end <= r2->pos) - { - r1 = r2; - continue; - } - - r2end = r2->pos + r2->size; - - /* The min_match adjustments prevent this. */ - XD3_ASSERT (r2end > (r1end + LEAST_MATCH_INCR)); - - /* If r3 is available... */ - if (! xd3_rlist_end (& stream->iopt_used, r3 = xd3_rlist_next (r2))) - { - /* If r3 starts before r1 finishes or just about, r2 is irrelevant */ - if (r3->pos <= r1end + 1) - { - xd3_iopt_free (stream, r2); - continue; - } - } - else if (! force) - { - /* Unless force, end the loop when r3 is not available. */ - break; - } - - r2off = r2->pos - r1->pos; - r2moff = r2end - r1end; - gap = r2end - r1->pos; - - /* If the two matches overlap almost entirely, choose the better match - * and discard the other. The else branch can still create inefficient - * copies, e.g., a 4-byte copy that takes 4 bytes to encode, which - * xd3_smatch() wouldn't allow by its crude efficiency check. However, - * in this case there are adjacent copies which mean the add would cost - * one extra byte. Allow the inefficiency here. */ - if (gap < 2*MIN_MATCH || r2moff <= 2 || r2off <= 2) - { - /* Only one match should be used, choose the longer one. */ - if (r1->size < r2->size) - { - xd3_iopt_free (stream, r1); - r1 = r2; - } - else - { - /* We are guaranteed that r1 does not overlap now, so advance past r2 */ - r1 = xd3_iopt_free (stream, r2); - } - continue; - } - else - { - /* Shorten one of the instructions -- could be optimized - * based on the address cache. */ - usize_t average; - usize_t newsize; - usize_t adjust1; - - XD3_ASSERT (r1end > r2->pos && r2end > r1->pos); - - /* Try to balance the length of both instructions, but avoid - * making both longer than MAX_MATCH_SPLIT . */ - average = gap / 2; - newsize = xd3_min (MAX_MATCH_SPLIT, gap - average); - - /* Should be possible to simplify this code. */ - if (newsize > r1->size) - { - /* shorten r2 */ - adjust1 = r1end - r2->pos; - } - else if (newsize > r2->size) - { - /* shorten r1 */ - adjust1 = r1end - r2->pos; - - XD3_ASSERT (r1->size > adjust1); - - r1->size -= adjust1; - - /* don't shorten r2 */ - adjust1 = 0; - } - else - { - /* shorten r1 */ - adjust1 = r1->size - newsize; - - if (r2->pos > r1end - adjust1) - { - adjust1 -= r2->pos - (r1end - adjust1); - } - - XD3_ASSERT (r1->size > adjust1); - - r1->size -= adjust1; - - /* shorten r2 */ - XD3_ASSERT (r1->pos + r1->size >= r2->pos); - - adjust1 = r1->pos + r1->size - r2->pos; - } - - /* Fallthrough above if-else, shorten r2 */ - XD3_ASSERT (r2->size > adjust1); - - r2->size -= adjust1; - r2->pos += adjust1; - r2->addr += adjust1; - - XD3_ASSERT (r1->size >= MIN_MATCH); - XD3_ASSERT (r2->size >= MIN_MATCH); - - r1 = r2; - } - } - - XD3_ASSERT (xd3_iopt_check (stream)); - - /* If forcing, pick instructions until the list is empty, otherwise - * this empties 50% of the queue. */ - for (flushed = 0; ! xd3_rlist_empty (& stream->iopt_used); ) - { - xd3_rinst *renc = xd3_rlist_pop_front (& stream->iopt_used); - if ((ret = xd3_iopt_add_encoding (stream, renc))) - { - return ret; - } - - if (! force) - { - if (++flushed > stream->iopt_size / 2) - { - break; - } - - /* If there are only two instructions remaining, break, - * because they were not optimized. This means there were - * more than 50% eliminated by the loop above. */ - r1 = xd3_rlist_front (& stream->iopt_used); - if (xd3_rlist_end(& stream->iopt_used, r1) || - xd3_rlist_end(& stream->iopt_used, r2 = xd3_rlist_next (r1)) || - xd3_rlist_end(& stream->iopt_used, r3 = xd3_rlist_next (r2))) - { - break; - } - } - } - - XD3_ASSERT (xd3_iopt_check (stream)); - - XD3_ASSERT (!force || xd3_rlist_length (& stream->iopt_used) == 0); - - return 0; -} - -static int -xd3_iopt_get_slot (xd3_stream *stream, xd3_rinst** iptr) -{ - xd3_rinst *i; - int ret; - - if (xd3_rlist_empty (& stream->iopt_free)) - { - if (stream->iopt_unlimited) - { - usize_t elts = XD3_ALLOCSIZE / sizeof(xd3_rinst); - - if ((ret = xd3_alloc_iopt (stream, elts))) - { - return ret; - } - - stream->iopt_size += elts; - } - else - { - if ((ret = xd3_iopt_flush_instructions (stream, 0))) { return ret; } - - XD3_ASSERT (! xd3_rlist_empty (& stream->iopt_free)); - } - } - - i = xd3_rlist_pop_back (& stream->iopt_free); - - xd3_rlist_push_back (& stream->iopt_used, i); - - (*iptr) = i; - - ++stream->i_slots_used; - - return 0; -} - -/* A copy is about to be emitted that extends backwards to POS, - * therefore it may completely cover some existing instructions in the - * buffer. If an instruction is completely covered by this new match, - * erase it. If the new instruction is covered by the previous one, - * return 1 to skip it. */ -static void -xd3_iopt_erase (xd3_stream *stream, usize_t pos, usize_t size) -{ - while (! xd3_rlist_empty (& stream->iopt_used)) - { - xd3_rinst *r = xd3_rlist_back (& stream->iopt_used); - - /* Verify that greedy is working. The previous instruction - * should end before the new one begins. */ - XD3_ASSERT ((stream->flags & XD3_BEGREEDY) == 0 || (r->pos + r->size <= pos)); - /* Verify that min_match is working. The previous instruction - * should end before the new one ends. */ - XD3_ASSERT ((stream->flags & XD3_BEGREEDY) != 0 || (r->pos + r->size < pos + size)); - - /* See if the last instruction starts before the new - * instruction. If so, there is nothing to erase. */ - if (r->pos < pos) - { - return; - } - - /* Otherwise, the new instruction covers the old one, delete it - and repeat. */ - xd3_rlist_remove (r); - xd3_rlist_push_back (& stream->iopt_free, r); - --stream->i_slots_used; - } -} - -/* This function tells the last matched input position. */ -static usize_t -xd3_iopt_last_matched (xd3_stream *stream) -{ - xd3_rinst *r; - - if (xd3_rlist_empty (& stream->iopt_used)) - { - return 0; - } - - r = xd3_rlist_back (& stream->iopt_used); - - return r->pos + r->size; -} - -/********************************************************* - Emit routines - ***********************************************************/ - -static int -xd3_emit_single (xd3_stream *stream, xd3_rinst *single, usize_t code) -{ - int has_size = stream->code_table[code].size1 == 0; - int ret; - - IF_DEBUG2 (DP(RINT "[emit1] %u %s (%u) code %u\n", - single->pos, - xd3_rtype_to_string ((xd3_rtype) single->type, 0), - single->size, - code)); - - if ((ret = xd3_emit_byte (stream, & INST_TAIL (stream), code))) - { - return ret; - } - - if (has_size) - { - if ((ret = xd3_emit_size (stream, & INST_TAIL (stream), single->size))) - { - return ret; - } - } - - return 0; -} - -static int -xd3_emit_double (xd3_stream *stream, xd3_rinst *first, - xd3_rinst *second, usize_t code) -{ - int ret; - - /* All double instructions use fixed sizes, so all we need to do is - * output the instruction code, no sizes. */ - XD3_ASSERT (stream->code_table[code].size1 != 0 && - stream->code_table[code].size2 != 0); - - if ((ret = xd3_emit_byte (stream, & INST_TAIL (stream), code))) - { - return ret; - } - - IF_DEBUG2 (DP(RINT "[emit2]: %u %s (%u) %s (%u) code %u\n", - first->pos, - xd3_rtype_to_string ((xd3_rtype) first->type, 0), - first->size, - xd3_rtype_to_string ((xd3_rtype) second->type, 0), - second->size, - code)); - - return 0; -} - -/* This enters a potential run instruction into the iopt buffer. The - * position argument is relative to the target window. */ -static int -xd3_emit_run (xd3_stream *stream, usize_t pos, usize_t size, uint8_t *run_c) -{ - xd3_rinst* ri; - int ret; - - if ((ret = xd3_iopt_get_slot (stream, & ri))) { return ret; } - - ri->type = XD3_RUN; - ri->xtra = *run_c; - ri->pos = pos; - ri->size = size; - - return 0; -} - -/* This enters a potential copy instruction into the iopt buffer. The - * position argument is relative to the target window.. */ -int -xd3_found_match (xd3_stream *stream, usize_t pos, - usize_t size, xoff_t addr, int is_source) -{ - xd3_rinst* ri; - int ret; - - if ((ret = xd3_iopt_get_slot (stream, & ri))) { return ret; } - - ri->type = XD3_CPY; - ri->xtra = is_source; - ri->pos = pos; - ri->size = size; - ri->addr = addr; - - return 0; -} - -static int -xd3_emit_hdr (xd3_stream *stream) -{ - int ret; - int use_secondary = stream->sec_type != NULL; - int use_adler32 = stream->flags & (XD3_ADLER32 | XD3_ADLER32_RECODE); - int vcd_source = xd3_encoder_used_source (stream); - usize_t win_ind = 0; - usize_t del_ind = 0; - usize_t enc_len; - usize_t tgt_len; - usize_t data_len; - usize_t inst_len; - usize_t addr_len; - - if (stream->current_window == 0) - { - usize_t hdr_ind = 0; - int use_appheader = stream->enc_appheader != NULL; - - if (use_secondary) { hdr_ind |= VCD_SECONDARY; } - if (use_appheader) { hdr_ind |= VCD_APPHEADER; } - - if ((ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_MAGIC1)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_MAGIC2)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_MAGIC3)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - VCDIFF_VERSION)) != 0 || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), hdr_ind)) != 0) - { - return ret; - } - - /* Secondary compressor ID */ -#if SECONDARY_ANY - if (use_secondary && - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), - stream->sec_type->id))) - { - return ret; - } -#endif - - /* Application header */ - if (use_appheader) - { - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), - stream->enc_appheadsz)) || - (ret = xd3_emit_bytes (stream, & HDR_TAIL (stream), - stream->enc_appheader, - stream->enc_appheadsz))) - { - return ret; - } - } - } - - /* try to compress this window */ -#if SECONDARY_ANY - if (use_secondary) - { - int data_sec = 0; - int inst_sec = 0; - int addr_sec = 0; - -# define ENCODE_SECONDARY_SECTION(UPPER,LOWER) \ - ((stream->flags & XD3_SEC_NO ## UPPER) == 0 && \ - (ret = xd3_encode_secondary (stream, \ - & UPPER ## _HEAD (stream), \ - & UPPER ## _TAIL (stream), \ - & xd3_sec_ ## LOWER (stream), \ - & stream->sec_ ## LOWER, \ - & LOWER ## _sec))) - - if (ENCODE_SECONDARY_SECTION (DATA, data) || - ENCODE_SECONDARY_SECTION (INST, inst) || - ENCODE_SECONDARY_SECTION (ADDR, addr)) - { - return ret; - } - - del_ind |= (data_sec ? VCD_DATACOMP : 0); - del_ind |= (inst_sec ? VCD_INSTCOMP : 0); - del_ind |= (addr_sec ? VCD_ADDRCOMP : 0); - } -#endif - - /* if (vcd_target) { win_ind |= VCD_TARGET; } */ - if (vcd_source) { win_ind |= VCD_SOURCE; } - if (use_adler32) { win_ind |= VCD_ADLER32; } - - /* window indicator */ - if ((ret = xd3_emit_byte (stream, & HDR_TAIL (stream), win_ind))) - { - return ret; - } - - /* source window */ - if (vcd_source) - { - /* or (vcd_target) { ... } */ - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), - stream->src->srclen)) || - (ret = xd3_emit_offset (stream, & HDR_TAIL (stream), - stream->src->srcbase))) { return ret; } - } - - tgt_len = stream->avail_in; - data_len = xd3_sizeof_output (DATA_HEAD (stream)); - inst_len = xd3_sizeof_output (INST_HEAD (stream)); - addr_len = xd3_sizeof_output (ADDR_HEAD (stream)); - - /* The enc_len field is a redundency for future extensions.*/ - enc_len = (1 + (xd3_sizeof_size (tgt_len) + - xd3_sizeof_size (data_len) + - xd3_sizeof_size (inst_len) + - xd3_sizeof_size (addr_len)) + - data_len + - inst_len + - addr_len + - (use_adler32 ? 4 : 0)); - - if ((ret = xd3_emit_size (stream, & HDR_TAIL (stream), enc_len)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), tgt_len)) || - (ret = xd3_emit_byte (stream, & HDR_TAIL (stream), del_ind)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), data_len)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), inst_len)) || - (ret = xd3_emit_size (stream, & HDR_TAIL (stream), addr_len))) - { - return ret; - } - - if (use_adler32) - { - uint8_t send[4]; - uint32_t a32; - - if (stream->flags & XD3_ADLER32) - { - a32 = adler32 (1L, stream->next_in, stream->avail_in); - } - else - { - a32 = stream->recode_adler32; - } - - /* Four bytes. */ - send[0] = (uint8_t) (a32 >> 24); - send[1] = (uint8_t) (a32 >> 16); - send[2] = (uint8_t) (a32 >> 8); - send[3] = (uint8_t) (a32 & 0x000000FFU); - - if ((ret = xd3_emit_bytes (stream, & HDR_TAIL (stream), send, 4))) - { - return ret; - } - } - - return 0; -} - -/**************************************************************** - Encode routines - ****************************************************************/ - -static int -xd3_encode_buffer_leftover (xd3_stream *stream) -{ - usize_t take; - usize_t room; - - /* Allocate the buffer. */ - if (stream->buf_in == NULL && - (stream->buf_in = (uint8_t*) xd3_alloc (stream, stream->winsize, 1)) == NULL) - { - return ENOMEM; - } - - IF_DEBUG2 (DP(RINT "[leftover] flush?=%s\n", (stream->flags & XD3_FLUSH) ? "yes" : "no")); - - /* Take leftover input first. */ - if (stream->buf_leftover != NULL) - { - XD3_ASSERT (stream->buf_avail == 0); - XD3_ASSERT (stream->buf_leftavail < stream->winsize); - - IF_DEBUG2 (DP(RINT "[leftover] previous %u avail %u\n", stream->buf_leftavail, stream->avail_in)); - - memcpy (stream->buf_in, stream->buf_leftover, stream->buf_leftavail); - - stream->buf_leftover = NULL; - stream->buf_avail = stream->buf_leftavail; - } - - /* Copy into the buffer. */ - room = stream->winsize - stream->buf_avail; - take = xd3_min (room, stream->avail_in); - - memcpy (stream->buf_in + stream->buf_avail, stream->next_in, take); - - stream->buf_avail += take; - - if (take < stream->avail_in) - { - /* Buffer is full */ - stream->buf_leftover = stream->next_in + take; - stream->buf_leftavail = stream->avail_in - take; - } - else if ((stream->buf_avail < stream->winsize) && !(stream->flags & XD3_FLUSH)) - { - /* Buffer has space */ - IF_DEBUG2 (DP(RINT "[leftover] emptied %u\n", take)); - return XD3_INPUT; - } - - /* Use the buffer: */ - IF_DEBUG2 (DP(RINT "[leftover] take %u remaining %u\n", take, stream->buf_leftavail)); - stream->next_in = stream->buf_in; - stream->avail_in = stream->buf_avail; - stream->buf_avail = 0; - - return 0; -} - -/* Allocates one block of xd3_rlist elements */ -static int -xd3_alloc_iopt (xd3_stream *stream, usize_t elts) -{ - usize_t i; - xd3_iopt_buflist* last = - (xd3_iopt_buflist*) xd3_alloc (stream, sizeof (xd3_iopt_buflist), 1); - - if (last == NULL || - (last->buffer = (xd3_rinst*) xd3_alloc (stream, sizeof (xd3_rinst), elts)) == NULL) - { - return ENOMEM; - } - - last->next = stream->iopt_alloc; - stream->iopt_alloc = last; - - for (i = 0; i < elts; i += 1) - { - xd3_rlist_push_back (& stream->iopt_free, & last->buffer[i]); - } - - return 0; -} - -/* This function allocates all memory initially used by the encoder. */ -static int -xd3_encode_init (xd3_stream *stream, int full_init) -{ - int i; - - if (full_init) - { - int large_comp = (stream->src != NULL); - int small_comp = ! (stream->flags & XD3_NOCOMPRESS); - - /* Memory allocations for checksum tables are delayed until - * xd3_string_match_init in the first call to string_match--that way - * identical or short inputs require no table allocation. */ - if (large_comp) - { - usize_t hash_values = stream->src->max_winsize / - stream->smatcher.large_step; - - xd3_size_hashtable (stream, - hash_values, - & stream->large_hash); - } - - if (small_comp) - { - /* TODO: This is under devel: used to have min (sprevsz) here, which sort - * of makes sense, but observed fast performance w/ larger tables, which - * also sort of makes sense. @@@ */ - usize_t hash_values = stream->winsize; - - xd3_size_hashtable (stream, - hash_values, - & stream->small_hash); - } - } - - /* data buffers */ - for (i = 0; i < ENC_SECTS; i += 1) - { - if ((stream->enc_heads[i] = - stream->enc_tails[i] = - xd3_alloc_output (stream, NULL)) == NULL) - { - return ENOMEM; - } - } - - /* iopt buffer */ - xd3_rlist_init (& stream->iopt_used); - xd3_rlist_init (& stream->iopt_free); - - if (xd3_alloc_iopt (stream, stream->iopt_size) != 0) { goto fail; } - - XD3_ASSERT (xd3_rlist_length (& stream->iopt_free) == stream->iopt_size); - XD3_ASSERT (xd3_rlist_length (& stream->iopt_used) == 0); - - /* address cache, code table */ - stream->acache.s_near = stream->code_table_desc->near_modes; - stream->acache.s_same = stream->code_table_desc->same_modes; - stream->code_table = stream->code_table_func (); - - return xd3_alloc_cache (stream); - - fail: - - return ENOMEM; -} - -int -xd3_encode_init_full (xd3_stream *stream) -{ - return xd3_encode_init (stream, 1); -} - -int -xd3_encode_init_partial (xd3_stream *stream) -{ - return xd3_encode_init (stream, 0); -} - -/* Called after the ENC_POSTOUT state, this puts the output buffers - * back into separate lists and re-initializes some variables. (The - * output lists were spliced together during the ENC_FLUSH state.) */ -static void -xd3_encode_reset (xd3_stream *stream) -{ - int i; - xd3_output *olist; - - stream->avail_in = 0; - stream->small_reset = 1; - stream->i_slots_used = 0; - - if (stream->src != NULL) - { - stream->src->srcbase = 0; - stream->src->srclen = 0; - stream->srcwin_decided = 0; - stream->srcwin_decided_early = 0; - stream->match_minaddr = 0; - stream->match_maxaddr = 0; - stream->taroff = 0; - } - - /* Reset output chains. */ - olist = stream->enc_heads[0]; - - for (i = 0; i < ENC_SECTS; i += 1) - { - XD3_ASSERT (olist != NULL); - - stream->enc_heads[i] = olist; - stream->enc_tails[i] = olist; - olist = olist->next_page; - - stream->enc_heads[i]->next = 0; - stream->enc_heads[i]->next_page = NULL; - - stream->enc_tails[i]->next_page = NULL; - stream->enc_tails[i] = stream->enc_heads[i]; - } - - xd3_freelist_output (stream, olist); -} - -/* The main encoding routine. */ -int -xd3_encode_input (xd3_stream *stream) -{ - int ret, i; - - if (stream->dec_state != 0) - { - stream->msg = "encoder/decoder transition"; - return XD3_INTERNAL; - } - - switch (stream->enc_state) - { - case ENC_INIT: - /* Only reached on first time through: memory setup. */ - if ((ret = xd3_encode_init_full (stream))) { return ret; } - - stream->enc_state = ENC_INPUT; - - case ENC_INPUT: - - /* If there is no input yet, just return. This checks for - * next_in == NULL, not avail_in == 0 since zero bytes is a - * valid input. There is an assertion in xd3_avail_input() that - * next_in != NULL for this reason. By returning right away we - * avoid creating an input buffer before the caller has supplied - * its first data. It is possible for xd3_avail_input to be - * called both before and after the first call to - * xd3_encode_input(). */ - if (stream->next_in == NULL) - { - return XD3_INPUT; - } - - enc_flush: - /* See if we should buffer the input: either if there is already - * a leftover buffer, or if the input is short of winsize - * without flush. The label at this point is reached by a goto - * below, when there is leftover input after postout. */ - if ((stream->buf_leftover != NULL) || - (stream->buf_avail != 0) || - (stream->avail_in < stream->winsize && ! (stream->flags & XD3_FLUSH))) - { - if ((ret = xd3_encode_buffer_leftover (stream))) { return ret; } - } - - /* Initalize the address cache before each window. */ - xd3_init_cache (& stream->acache); - - stream->input_position = 0; - stream->min_match = MIN_MATCH; - stream->unencoded_offset = 0; - - stream->enc_state = ENC_SEARCH; - - IF_DEBUG2 (DP(RINT "[WINSTART:%"Q"u] input bytes %u offset %"Q"u\n", - stream->current_window, stream->avail_in, - stream->total_in)); - return XD3_WINSTART; - - case ENC_SEARCH: - IF_DEBUG2 (DP(RINT "[SEARCH] match_state %d avail_in %u %s\n", - stream->match_state, stream->avail_in, - stream->src ? "source" : "no source")); - - /* Reentrant matching. */ - if (stream->src != NULL) - { - switch (stream->match_state) - { - case MATCH_TARGET: - /* Try matching forward at the start of the target. - * This is entered the first time through, to check for - * a perfect match, and whenever there is a source match - * that extends to the end of the previous window. The - * match_srcpos field is initially zero and later set - * during xd3_source_extend_match. */ - - if (stream->avail_in > 0) - { - /* This call can't fail because the source window is - * unrestricted. */ - ret = xd3_source_match_setup (stream, stream->match_srcpos); - XD3_ASSERT (ret == 0); - stream->match_state = MATCH_FORWARD; - } - else - { - stream->match_state = MATCH_SEARCHING; - stream->match_fwd = 0; - } - XD3_ASSERT (stream->match_fwd == 0); - - case MATCH_FORWARD: - case MATCH_BACKWARD: - if (stream->avail_in != 0) - { - if ((ret = xd3_source_extend_match (stream)) != 0) - { - return ret; - } - - /* The search has to make forward progress here - * or else it can get stuck in a match-backward - * (getsrcblk) then match-forward (getsrcblk), - * find insufficient match length, then repeat - - * exactly the same search. - */ - stream->input_position += stream->match_fwd; - } - - case MATCH_SEARCHING: - /* Continue string matching. (It's possible that the - * initial match continued through the entire input, in - * which case we're still in MATCH_FORWARD and should - * remain so for the next input window.) */ - break; - } - } - - /* String matching... */ - if (stream->avail_in != 0 && - (ret = stream->smatcher.string_match (stream))) - { - return ret; - } - - stream->enc_state = ENC_INSTR; - - case ENC_INSTR: - /* Note: Jump here to encode VCDIFF deltas w/o using this - * string-matching code. Merging code enters here. */ - - /* Flush the instrution buffer, then possibly add one more - * instruction, then emit the header. */ - if ((ret = xd3_iopt_flush_instructions (stream, 1)) || - (ret = xd3_iopt_add_finalize (stream))) - { - return ret; - } - - stream->enc_state = ENC_FLUSH; - - case ENC_FLUSH: - /* Note: main_recode_func() bypasses string-matching by setting - * ENC_FLUSH. */ - if ((ret = xd3_emit_hdr (stream))) - { - return ret; - } - - /* Begin output. */ - stream->enc_current = HDR_HEAD (stream); - - /* Chain all the outputs together. After doing this, it looks - * as if there is only one section. The other enc_heads are set - * to NULL to avoid freeing them more than once. */ - for (i = 1; i < ENC_SECTS; i += 1) - { - stream->enc_tails[i-1]->next_page = stream->enc_heads[i]; - stream->enc_heads[i] = NULL; - } - - enc_output: - - stream->enc_state = ENC_POSTOUT; - stream->next_out = stream->enc_current->base; - stream->avail_out = stream->enc_current->next; - stream->total_out += (xoff_t) stream->avail_out; - - /* If there is any output in this buffer, return it, otherwise - * fall through to handle the next buffer or finish the window - * after all buffers have been output. */ - if (stream->avail_out > 0) - { - /* This is the only place xd3_encode returns XD3_OUTPUT */ - return XD3_OUTPUT; - } - - case ENC_POSTOUT: - - if (stream->avail_out != 0) - { - stream->msg = "missed call to consume output"; - return XD3_INTERNAL; - } - - /* Continue outputting one buffer at a time, until the next is NULL. */ - if ((stream->enc_current = stream->enc_current->next_page) != NULL) - { - goto enc_output; - } - - stream->total_in += (xoff_t) stream->avail_in; - stream->enc_state = ENC_POSTWIN; - - IF_DEBUG2 (DP(RINT "[WINFINISH:%"Q"u] in=%"Q"u\n", - stream->current_window, - stream->total_in)); - return XD3_WINFINISH; - - case ENC_POSTWIN: - - xd3_encode_reset (stream); - - stream->current_window += 1; - stream->enc_state = ENC_INPUT; - - /* If there is leftover input to flush, repeat. */ - if (stream->buf_leftover != NULL) - { - goto enc_flush; - } - - /* Ready for more input. */ - return XD3_INPUT; - - default: - stream->msg = "invalid state"; - return XD3_INTERNAL; - } -} -#endif /* XD3_ENCODER */ - -/***************************************************************** - Client convenience functions - ******************************************************************/ - -int -xd3_process_stream (int is_encode, - xd3_stream *stream, - int (*func) (xd3_stream *), - int close_stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max) -{ - usize_t ipos = 0; - usize_t n = xd3_min (stream->winsize, input_size); - - (*output_size) = 0; - - stream->flags |= XD3_FLUSH; - - xd3_avail_input (stream, input + ipos, n); - ipos += n; - - for (;;) - { - int ret; - switch ((ret = func (stream))) - { - case XD3_OUTPUT: { /* memcpy below */ break; } - case XD3_INPUT: { - n = xd3_min(stream->winsize, input_size - ipos); - if (n == 0) - { - goto done; - } - xd3_avail_input (stream, input + ipos, n); - ipos += n; - continue; - } - case XD3_GOTHEADER: { /* ignore */ continue; } - case XD3_WINSTART: { /* ignore */ continue; } - case XD3_WINFINISH: { /* ignore */ continue; } - case XD3_GETSRCBLK: - { - /* When the getblk function is NULL, it is necessary to - * provide the complete source as a single block using - * xd3_set_source_and_size, otherwise this error. The - * library should never ask for another source block. */ - stream->msg = "library requested source block"; - return XD3_INTERNAL; - } - case 0: - { - /* xd3_encode_input/xd3_decode_input never return 0 */ - stream->msg = "invalid return: 0"; - return XD3_INTERNAL; - } - default: - return ret; - } - - if (*output_size + stream->avail_out > output_size_max) - { - stream->msg = "insufficient output space"; - return ENOSPC; - } - - memcpy (output + *output_size, stream->next_out, stream->avail_out); - - *output_size += stream->avail_out; - - xd3_consume_output (stream); - } - done: - return (close_stream == 0) ? 0 : xd3_close_stream (stream); -} - -static int -xd3_process_memory (int is_encode, - int (*func) (xd3_stream *), - const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - xd3_stream stream; - xd3_config config; - xd3_source src; - int ret; - - memset (& stream, 0, sizeof (stream)); - memset (& config, 0, sizeof (config)); - - if (input == NULL || output == NULL) { - stream.msg = "invalid input/output buffer"; - ret = XD3_INTERNAL; - goto exit; - } - - config.flags = flags; - - if (is_encode) - { - config.winsize = xd3_min(input_size, (usize_t) XD3_DEFAULT_WINSIZE); - config.sprevsz = xd3_pow2_roundup (config.winsize); - } - - if ((ret = xd3_config_stream (&stream, &config)) != 0) - { - goto exit; - } - - if (source != NULL) - { - memset (& src, 0, sizeof (src)); - - src.blksize = source_size; - src.onblk = source_size; - src.curblk = source; - src.curblkno = 0; - src.max_winsize = source_size; - - if ((ret = xd3_set_source_and_size (&stream, &src, source_size)) != 0) - { - goto exit; - } - } - - if ((ret = xd3_process_stream (is_encode, - & stream, - func, 1, - input, input_size, - output, - output_size, - output_size_max)) != 0) - { - goto exit; - } - - exit: - if (ret != 0) - { - IF_DEBUG2 (DP(RINT "process_memory: %d: %s\n", ret, stream.msg)); - } - xd3_free_stream(&stream); - return ret; -} - -int -xd3_decode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max) -{ - return xd3_process_stream (0, stream, & xd3_decode_input, 1, - input, input_size, - output, output_size, output_size_max); -} - -int -xd3_decode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - return xd3_process_memory (0, & xd3_decode_input, - input, input_size, - source, source_size, - output, output_size, output_size_max, - flags); -} - - -#if XD3_ENCODER -int -xd3_encode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max) -{ - return xd3_process_stream (1, stream, & xd3_encode_input, 1, - input, input_size, - output, output_size, output_size_max); -} - -int -xd3_encode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output, - usize_t *output_size, - usize_t output_size_max, - int flags) { - return xd3_process_memory (1, & xd3_encode_input, - input, input_size, - source, source_size, - output, output_size, output_size_max, - flags); -} -#endif - - -/************************************************************* - String matching helpers - *************************************************************/ - -#if XD3_ENCODER -/* Do the initial xd3_string_match() checksum table setup. - * Allocations are delayed until first use to avoid allocation - * sometimes (e.g., perfect matches, zero-length inputs). */ -static int -xd3_string_match_init (xd3_stream *stream) -{ - const int DO_SMALL = ! (stream->flags & XD3_NOCOMPRESS); - const int DO_LARGE = (stream->src != NULL); - - if (DO_LARGE && stream->large_table == NULL) - { - if ((stream->large_table = - (usize_t*) xd3_alloc0 (stream, stream->large_hash.size, sizeof (usize_t))) == NULL) - { - return ENOMEM; - } - } - - if (DO_SMALL) - { - /* Subsequent calls can return immediately after checking reset. */ - if (stream->small_table != NULL) - { - /* The target hash table is reinitialized once per window. */ - /* TODO: This would not have to be reinitialized if absolute - * offsets were being stored. */ - if (stream->small_reset) - { - stream->small_reset = 0; - memset (stream->small_table, 0, - sizeof (usize_t) * stream->small_hash.size); - } - - return 0; - } - - if ((stream->small_table = - (usize_t*) xd3_alloc0 (stream, - stream->small_hash.size, - sizeof (usize_t))) == NULL) - { - return ENOMEM; - } - - /* If there is a previous table needed. */ - if (stream->smatcher.small_lchain > 1 || - stream->smatcher.small_chain > 1) - { - if ((stream->small_prev = - (xd3_slist*) xd3_alloc (stream, - stream->sprevsz, - sizeof (xd3_slist))) == NULL) - { - return ENOMEM; - } - } - } - - return 0; -} - -#if XD3_USE_LARGEFILE64 -/* This function handles the 32/64bit ambiguity -- file positions are 64bit - * but the hash table for source-offsets is 32bit. */ -static xoff_t -xd3_source_cksum_offset(xd3_stream *stream, usize_t low) -{ - xoff_t scp = stream->srcwin_cksum_pos; - xoff_t s0 = scp >> 32; - - usize_t sr = (usize_t) scp; - - if (s0 == 0) { - return low; - } - - /* This should not be >= because srcwin_cksum_pos is the next - * position to index. */ - if (low > sr) { - return (--s0 << 32) | low; - } - - return (s0 << 32) | low; -} -#else -static xoff_t -xd3_source_cksum_offset(xd3_stream *stream, usize_t low) -{ - return (xoff_t) low; -} -#endif - -/* This function sets up the stream->src fields srcbase, srclen. The - * call is delayed until these values are needed to encode a copy - * address. At this point the decision has to be made. */ -static int -xd3_srcwin_setup (xd3_stream *stream) -{ - xd3_source *src = stream->src; - xoff_t length, x; - - /* Check the undecided state. */ - XD3_ASSERT (src->srclen == 0 && src->srcbase == 0); - - /* Avoid repeating this call. */ - stream->srcwin_decided = 1; - - /* If the stream is flushing, then the iopt buffer was able to - * contain the complete encoding. If no copies were issued no - * source window is actually needed. This prevents the VCDIFF - * header from including source base/len. xd3_emit_hdr checks for - * srclen == 0. */ - if (stream->enc_state == ENC_INSTR && stream->match_maxaddr == 0) - { - goto done; - } - - /* Check for overflow, srclen is usize_t - this can't happen unless - * XD3_DEFAULT_SRCBACK and related parameters are extreme - should - * use smaller windows. */ - length = stream->match_maxaddr - stream->match_minaddr; - - x = (xoff_t) USIZE_T_MAX; - if (length > x) - { - stream->msg = "source window length overflow (not 64bit)"; - return XD3_INTERNAL; - } - - /* If ENC_INSTR, then we know the exact source window to use because - * no more copies can be issued. */ - if (stream->enc_state == ENC_INSTR) - { - src->srcbase = stream->match_minaddr; - src->srclen = (usize_t) length; - XD3_ASSERT (src->srclen); - goto done; - } - - /* Otherwise, we have to make a guess. More copies may still be - * issued, but we have to decide the source window base and length - * now. */ - /* TODO: This may not working well in practice, more testing needed. */ - src->srcbase = stream->match_minaddr; - src->srclen = xd3_max ((usize_t) length, - stream->avail_in + (stream->avail_in >> 2)); - - if (src->eof_known) - { - /* Note: if the source size is known, we must reduce srclen or - * code that expects to pass a single block w/ getblk == NULL - * will not function, as the code will return GETSRCBLK asking - * for the second block. */ - src->srclen = xd3_min (src->srclen, xd3_source_eof(src) - src->srcbase); - } - - IF_DEBUG1 (DP(RINT "[srcwin_setup_constrained] base %"Q"u len %u\n", - src->srcbase, src->srclen)); - - XD3_ASSERT (src->srclen); - done: - /* Set the taroff. This convenience variable is used even when - stream->src == NULL. */ - stream->taroff = src->srclen; - return 0; -} - -/* Sets the bounding region for a newly discovered source match, prior - * to calling xd3_source_extend_match(). This sets the match_maxfwd, - * match_maxback variables. Note: srcpos is an absolute position - * (xoff_t) but the match_maxfwd, match_maxback variables are usize_t. - * Returns 0 if the setup succeeds, or 1 if the source position lies - * outside an already-decided srcbase/srclen window. */ -static int -xd3_source_match_setup (xd3_stream *stream, xoff_t srcpos) -{ - xd3_source *const src = stream->src; - usize_t greedy_or_not; - - stream->match_maxback = 0; - stream->match_maxfwd = 0; - stream->match_back = 0; - stream->match_fwd = 0; - - /* This avoids a non-blocking endless loop caused by scanning - * backwards across a block boundary, only to find not enough - * matching bytes to beat the current min_match due to a better lazy - * target match: the re-entry to xd3_string_match() repeats the same - * long match because the input position hasn't changed. TODO: if - * ever duplicates are added to the source hash table, this logic - * won't suffice to avoid loops. See testing/regtest.cc's - * TestNonBlockingProgress test! */ - if (srcpos != 0 && srcpos == stream->match_last_srcpos) - { - IF_DEBUG2(DP(RINT "[match_setup] looping failure\n")); - goto bad; - } - - /* Implement src->max_winsize, which prevents the encoder from seeking - * back further than the LRU cache maintaining FIFO discipline, (to - * avoid seeking). */ - if (srcpos < stream->srcwin_cksum_pos && - stream->srcwin_cksum_pos - srcpos > src->max_winsize) - { - IF_DEBUG2(DP(RINT "[match_setup] rejected due to src->max_winsize " - "distance eof=%"Q"u srcpos=%"Q"u max_winsz=%"Q"u\n", - xd3_source_eof (src), - srcpos, src->max_winsize)); - goto bad; - } - - /* There are cases where the above test does not reject a match that - * will experience XD3_TOOFARBACK at the first xd3_getblk call - * because the input may have advanced up to one block beyond the - * actual EOF. */ - IF_DEBUG2(DP(RINT "[match_setup] %"Q"u srcpos %"Q"u, " - "src->max_winsize %"Q"u\n", - stream->total_in + stream->input_position, - srcpos, src->max_winsize)); - - /* Going backwards, the 1.5-pass algorithm allows some - * already-matched input may be covered by a longer source match. - * The greedy algorithm does not allow this. */ - if (stream->flags & XD3_BEGREEDY) - { - /* The greedy algorithm allows backward matching to the last - matched position. */ - greedy_or_not = xd3_iopt_last_matched (stream); - } - else - { - /* The 1.5-pass algorithm allows backward matching to go back as - * far as the unencoded offset, which is updated as instructions - * pass out of the iopt buffer. If this (default) is chosen, it - * means xd3_iopt_erase may be called to eliminate instructions - * when a covering source match is found. */ - greedy_or_not = stream->unencoded_offset; - } - - /* Backward target match limit. */ - XD3_ASSERT (stream->input_position >= greedy_or_not); - stream->match_maxback = stream->input_position - greedy_or_not; - - /* Forward target match limit. */ - XD3_ASSERT (stream->avail_in > stream->input_position); - stream->match_maxfwd = stream->avail_in - stream->input_position; - - /* Now we take the source position into account. It depends whether - * the srclen/srcbase have been decided yet. */ - if (stream->srcwin_decided == 0) - { - /* Unrestricted case: the match can cover the entire source, - * 0--src->size. We compare the usize_t - * match_maxfwd/match_maxback against the xoff_t - * src->size/srcpos values and take the min. */ - if (srcpos < (xoff_t) stream->match_maxback) - { - stream->match_maxback = (usize_t) srcpos; - } - - if (src->eof_known) - { - xoff_t srcavail = xd3_source_eof (src) - srcpos; - - if (srcavail < (xoff_t) stream->match_maxfwd) - { - stream->match_maxfwd = (usize_t) srcavail; - } - } - - IF_DEBUG2(DP(RINT - "[match_setup] srcpos %"Q"u (tgtpos %"Q"u) " - "unrestricted maxback %u maxfwd %u\n", - srcpos, - stream->total_in + stream->input_position, - stream->match_maxback, - stream->match_maxfwd)); - goto good; - } - - /* Decided some source window. */ - XD3_ASSERT (src->srclen > 0); - - /* Restricted case: fail if the srcpos lies outside the source window */ - if ((srcpos < src->srcbase) || - (srcpos > (src->srcbase + (xoff_t) src->srclen))) - { - IF_DEBUG1(DP(RINT "[match_setup] restricted source window failure\n")); - goto bad; - } - else - { - usize_t srcavail; - - srcavail = (usize_t) (srcpos - src->srcbase); - if (srcavail < stream->match_maxback) - { - stream->match_maxback = srcavail; - } - - srcavail = (usize_t) (src->srcbase + (xoff_t) src->srclen - srcpos); - if (srcavail < stream->match_maxfwd) - { - stream->match_maxfwd = srcavail; - } - - IF_DEBUG2(DP(RINT - "[match_setup] srcpos %"Q"u (tgtpos %"Q"u) " - "restricted maxback %u maxfwd %u\n", - srcpos, - stream->total_in + stream->input_position, - stream->match_maxback, - stream->match_maxfwd)); - goto good; - } - - good: - stream->match_state = MATCH_BACKWARD; - stream->match_srcpos = srcpos; - stream->match_last_srcpos = srcpos; - return 0; - - bad: - stream->match_state = MATCH_SEARCHING; - stream->match_last_srcpos = srcpos; - return 1; -} - -static inline int -xd3_forward_match(const uint8_t *s1c, const uint8_t *s2c, int n) -{ - int i = 0; -#if UNALIGNED_OK - int nint = n / sizeof(int); - - if (nint >> 3) - { - int j = 0; - const int *s1 = (const int*)s1c; - const int *s2 = (const int*)s2c; - int nint_8 = nint - 8; - - while (i <= nint_8 && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++] && - s1[i++] == s2[j++]) { } - - i = (i - 1) * sizeof(int); - } -#endif - - while (i < n && s1c[i] == s2c[i]) - { - i++; - } - return i; -} - -/* This function expands the source match backward and forward. It is - * reentrant, since xd3_getblk may return XD3_GETSRCBLK, so most - * variables are kept in xd3_stream. There are two callers of this - * function, the string_matching routine when a checksum match is - * discovered, and xd3_encode_input whenever a continuing (or initial) - * match is suspected. The two callers do different things with the - * input_position, thus this function leaves that variable untouched. - * If a match is taken the resulting stream->match_fwd is left - * non-zero. */ -static int -xd3_source_extend_match (xd3_stream *stream) -{ - int ret; - xd3_source *const src = stream->src; - xoff_t matchoff; /* matchoff is the current right/left-boundary of - the source match being tested. */ - usize_t streamoff; /* streamoff is the current right/left-boundary - of the input match being tested. */ - xoff_t tryblk; /* tryblk, tryoff are the block, offset position - of matchoff */ - usize_t tryoff; - usize_t tryrem; /* tryrem is the number of matchable bytes */ - usize_t matched; - - XD3_ASSERT (src != NULL); - - /* Does it make sense to compute backward match AFTER forward match? */ - if (stream->match_state == MATCH_BACKWARD) - { - /* Note: this code is practically duplicated below, substituting - * match_fwd/match_back and direction. */ - matchoff = stream->match_srcpos - stream->match_back; - streamoff = stream->input_position - stream->match_back; - xd3_blksize_div (matchoff, src, &tryblk, &tryoff); - - /* this loops backward over source blocks */ - while (stream->match_back < stream->match_maxback) - { - /* see if we're backing across a source block boundary */ - if (tryoff == 0) - { - tryoff = src->blksize; - tryblk -= 1; - } - - if ((ret = xd3_getblk (stream, tryblk))) - { - if (ret == XD3_TOOFARBACK) - { - IF_DEBUG2(DP(RINT "[maxback] %"Q"u TOOFARBACK: %u INP %"Q"u CKSUM %"Q"u\n", - tryblk, stream->match_back, - stream->total_in + stream->input_position, - stream->srcwin_cksum_pos)); - - /* the starting position is too far back. */ - if (stream->match_back == 0) - { - XD3_ASSERT(stream->match_fwd == 0); - goto donefwd; - } - - /* search went too far back, continue forward. */ - goto doneback; - } - - /* could be a XD3_GETSRCBLK failure. */ - return ret; - } - - tryrem = xd3_min (tryoff, stream->match_maxback - stream->match_back); - - IF_DEBUG2(DP(RINT "[maxback] maxback %u trysrc %"Q"u/%u tgt %u tryrem %u\n", - stream->match_maxback, tryblk, tryoff, streamoff, tryrem)); - - /* TODO: This code can be optimized similar to xd3_match_forward() */ - for (; tryrem != 0; tryrem -= 1, stream->match_back += 1) - { - if (src->curblk[tryoff-1] != stream->next_in[streamoff-1]) - { - goto doneback; - } - - tryoff -= 1; - streamoff -= 1; - } - } - - doneback: - stream->match_state = MATCH_FORWARD; - } - - XD3_ASSERT (stream->match_state == MATCH_FORWARD); - - matchoff = stream->match_srcpos + stream->match_fwd; - streamoff = stream->input_position + stream->match_fwd; - xd3_blksize_div (matchoff, src, & tryblk, & tryoff); - - /* Note: practically the same code as backwards case above: same comments */ - while (stream->match_fwd < stream->match_maxfwd) - { - if (tryoff == src->blksize) - { - tryoff = 0; - tryblk += 1; - } - - if ((ret = xd3_getblk (stream, tryblk))) - { - if (ret == XD3_TOOFARBACK) - { - IF_DEBUG2(DP(RINT "[maxfwd] %"Q"u TOOFARBACK: %u INP %"Q"u CKSUM %"Q"u\n", - tryblk, stream->match_fwd, - stream->total_in + stream->input_position, - stream->srcwin_cksum_pos)); - goto donefwd; - } - - /* could be a XD3_GETSRCBLK failure. */ - return ret; - } - - tryrem = xd3_min(stream->match_maxfwd - stream->match_fwd, - src->onblk - tryoff); - - if (tryrem == 0) - { - /* Generally, this means we have a power-of-two size source - * and we just found the end-of-file, in this case it's an - * empty block. */ - XD3_ASSERT (src->onblk < src->blksize); - break; - } - - matched = xd3_forward_match(src->curblk + tryoff, - stream->next_in + streamoff, - tryrem); - tryoff += matched; - streamoff += matched; - stream->match_fwd += matched; - - if (tryrem != matched) - { - break; - } - } - - donefwd: - stream->match_state = MATCH_SEARCHING; - - IF_DEBUG2(DP(RINT "[extend match] input %"Q"u srcpos %"Q"u len %u\n", - stream->input_position + stream->total_in, - stream->match_srcpos, - stream->match_fwd)); - - /* If the match ends short of the last instruction end, we probably - * don't want it. There is the possibility that a copy ends short - * of the last copy but also goes further back, in which case we - * might want it. This code does not implement such: if so we would - * need more complicated xd3_iopt_erase logic. */ - if (stream->match_fwd < stream->min_match) - { - stream->match_fwd = 0; - } - else - { - usize_t total = stream->match_fwd + stream->match_back; - - /* Correct the variables to remove match_back from the equation. */ - usize_t target_position = stream->input_position - stream->match_back; - usize_t match_length = stream->match_back + stream->match_fwd; - xoff_t match_position = stream->match_srcpos - stream->match_back; - xoff_t match_end = stream->match_srcpos + stream->match_fwd; - - /* At this point we may have to erase any iopt-buffer - * instructions that are fully covered by a backward-extending - * copy. */ - if (stream->match_back > 0) - { - xd3_iopt_erase (stream, target_position, total); - } - - stream->match_back = 0; - - /* Update ranges. The first source match occurs with both - values set to 0. */ - if (stream->match_maxaddr == 0 || - match_position < stream->match_minaddr) - { - stream->match_minaddr = match_position; - } - - if (match_end > stream->match_maxaddr) - { - /* Note: per-window */ - stream->match_maxaddr = match_end; - } - - if (match_end > stream->maxsrcaddr) - { - /* Note: across windows */ - stream->maxsrcaddr = match_end; - } - - IF_DEBUG2 ({ - static int x = 0; - DP(RINT "[source match:%d] length %u (%s) [ %u bytes ]\n", - x++, - match_length, - stream->total_in + target_position, - stream->total_in + target_position + match_length, - match_position, - match_position + match_length, - (stream->total_in + target_position == match_position) ? "same" : "diff", - match_length); - }); - - if ((ret = xd3_found_match (stream, - /* decoder position */ target_position, - /* length */ match_length, - /* address */ match_position, - /* is_source */ 1))) - { - return ret; - } - - /* If the match ends with the available input: */ - if (target_position + match_length == stream->avail_in) - { - /* Setup continuing match for the next window. */ - stream->match_state = MATCH_TARGET; - stream->match_srcpos = match_end; - } - } - - return 0; -} - -/* Update the small hash. Values in the small_table are offset by - * HASH_CKOFFSET (1) to distinguish empty buckets from real offsets. */ -static void -xd3_scksum_insert (xd3_stream *stream, - usize_t inx, - usize_t scksum, - usize_t pos) -{ - /* If we are maintaining previous duplicates. */ - if (stream->small_prev) - { - usize_t last_pos = stream->small_table[inx]; - xd3_slist *pos_list = & stream->small_prev[pos & stream->sprevmask]; - - /* Note last_pos is offset by HASH_CKOFFSET. */ - pos_list->last_pos = last_pos; - } - - /* Enter the new position into the hash bucket. */ - stream->small_table[inx] = pos + HASH_CKOFFSET; -} - -#if XD3_DEBUG -static int -xd3_check_smatch (const uint8_t *ref0, const uint8_t *inp0, - const uint8_t *inp_max, usize_t cmp_len) -{ - usize_t i; - - for (i = 0; i < cmp_len; i += 1) - { - XD3_ASSERT (ref0[i] == inp0[i]); - } - - if (inp0 + cmp_len < inp_max) - { - XD3_ASSERT (inp0[i] != ref0[i]); - } - - return 1; -} -#endif /* XD3_DEBUG */ - -/* When the hash table indicates a possible small string match, it - * calls this routine to find the best match. The first matching - * position is taken from the small_table, HASH_CKOFFSET is subtracted - * to get the actual position. After checking that match, if previous - * linked lists are in use (because stream->smatcher.small_chain > 1), - * previous matches are tested searching for the longest match. If - * (stream->min_match > MIN_MATCH) then a lazy match is in effect. - */ -static usize_t -xd3_smatch (xd3_stream *stream, - usize_t base, - usize_t scksum, - usize_t *match_offset) -{ - usize_t cmp_len; - usize_t match_length = 0; - usize_t chain = (stream->min_match == MIN_MATCH ? - stream->smatcher.small_chain : - stream->smatcher.small_lchain); - const uint8_t *inp_max = stream->next_in + stream->avail_in; - const uint8_t *inp; - const uint8_t *ref; - - SMALL_HASH_DEBUG1 (stream, stream->next_in + stream->input_position); - - XD3_ASSERT (stream->min_match + stream->input_position <= stream->avail_in); - - base -= HASH_CKOFFSET; - - again: - - IF_DEBUG2 (DP(RINT "smatch at base=%u inp=%u cksum=%u\n", base, - stream->input_position, scksum)); - - /* For small matches, we can always go to the end-of-input because - * the matching position must be less than the input position. */ - XD3_ASSERT (base < stream->input_position); - - ref = stream->next_in + base; - inp = stream->next_in + stream->input_position; - - SMALL_HASH_DEBUG2 (stream, ref); - - /* Expand potential match forward. */ - while (inp < inp_max && *inp == *ref) - { - ++inp; - ++ref; - } - - cmp_len = (usize_t)(inp - (stream->next_in + stream->input_position)); - - /* Verify correctness */ - XD3_ASSERT (xd3_check_smatch (stream->next_in + base, - stream->next_in + stream->input_position, - inp_max, cmp_len)); - - /* Update longest match */ - if (cmp_len > match_length) - { - ( match_length) = cmp_len; - (*match_offset) = base; - - /* Stop if we match the entire input or have a long_enough match. */ - if (inp == inp_max || cmp_len >= stream->smatcher.long_enough) - { - goto done; - } - } - - /* If we have not reached the chain limit, see if there is another - previous position. */ - while (--chain != 0) - { - /* Calculate the previous offset. */ - usize_t prev_pos = stream->small_prev[base & stream->sprevmask].last_pos; - usize_t diff_pos; - - if (prev_pos == 0) - { - break; - } - - prev_pos -= HASH_CKOFFSET; - - if (prev_pos > base) - { - break; - } - - base = prev_pos; - - XD3_ASSERT (stream->input_position > base); - diff_pos = stream->input_position - base; - - /* Stop searching if we go beyond sprevsz, since those entries - * are for unrelated checksum entries. */ - if (diff_pos & ~stream->sprevmask) - { - break; - } - - goto again; - } - - done: - /* Crude efficiency test: if the match is very short and very far back, it's - * unlikely to help, but the exact calculation requires knowing the state of - * the address cache and adjacent instructions, which we can't do here. - * Rather than encode a probably inefficient copy here and check it later - * (which complicates the code a lot), do this: - */ - if (match_length == 4 && stream->input_position - (*match_offset) >= 1<<14) - { - /* It probably takes >2 bytes to encode an address >= 2^14 from here */ - return 0; - } - if (match_length == 5 && stream->input_position - (*match_offset) >= 1<<21) - { - /* It probably takes >3 bytes to encode an address >= 2^21 from here */ - return 0; - } - - /* It's unlikely that a window is large enough for the (match_length == 6 && - * address >= 2^28) check */ - return match_length; -} - -#if XD3_DEBUG -static void -xd3_verify_small_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum) -{ - uint32_t state; - uint32_t cksum = xd3_scksum (&state, inp, stream->smatcher.small_look); - - XD3_ASSERT (cksum == x_cksum); -} - -static void -xd3_verify_large_state (xd3_stream *stream, - const uint8_t *inp, - uint32_t x_cksum) -{ - uint32_t cksum = xd3_lcksum (inp, stream->smatcher.large_look); - XD3_ASSERT (cksum == x_cksum); -} -static void -xd3_verify_run_state (xd3_stream *stream, - const uint8_t *inp, - usize_t x_run_l, - uint8_t *x_run_c) -{ - usize_t slook = stream->smatcher.small_look; - uint8_t run_c; - usize_t run_l = xd3_comprun (inp, slook, &run_c); - - XD3_ASSERT (run_l == 0 || run_c == *x_run_c); - XD3_ASSERT (x_run_l > slook || run_l == x_run_l); -} -#endif /* XD3_DEBUG */ - -/* This function computes more source checksums to advance the window. - * Called at every entrance to the string-match loop and each time - * stream->input_position reaches the value returned as - * *next_move_point. NB: this is one of the most expensive functions - * in this code and also the most critical for good compression. - */ -static int -xd3_srcwin_move_point (xd3_stream *stream, usize_t *next_move_point) -{ - /* the source file is indexed until this point */ - xoff_t target_cksum_pos; - /* the absolute target file input position */ - xoff_t absolute_input_pos; - - if (stream->src->eof_known) - { - xoff_t source_size = xd3_source_eof (stream->src); - XD3_ASSERT(stream->srcwin_cksum_pos <= source_size); - - if (stream->srcwin_cksum_pos == source_size) - { - *next_move_point = USIZE_T_MAX; - return 0; - } - } - - absolute_input_pos = stream->total_in + stream->input_position; - - /* Immediately read the entire window. - * - * Note: this reverses a long held policy, at this point in the - * code, of advancing relatively slowly as the input is read, which - * results in better compression for very-similar inputs, but worse - * compression where data is deleted near the beginning of the file. - * - * The new policy is simpler, somewhat slower and can benefit, or - * slightly worsen, compression performance. */ - if (absolute_input_pos < stream->src->max_winsize / 2) - { - target_cksum_pos = stream->src->max_winsize; - } - else - { - /* TODO: The addition of 2 blocks here is arbitrary. Do a - * better job of stream alignment based on observed source copy - * addresses, and when both input sizes are known, the - * difference in size. */ - target_cksum_pos = absolute_input_pos + - stream->src->max_winsize / 2 + - stream->src->blksize * 2; - target_cksum_pos &= ~stream->src->maskby; - } - - /* A long match may have extended past srcwin_cksum_pos. Don't - * start checksumming already-matched source data. */ - if (stream->maxsrcaddr > stream->srcwin_cksum_pos) - { - stream->srcwin_cksum_pos = stream->maxsrcaddr; - } - - if (target_cksum_pos < stream->srcwin_cksum_pos) - { - target_cksum_pos = stream->srcwin_cksum_pos; - } - - while (stream->srcwin_cksum_pos < target_cksum_pos && - (!stream->src->eof_known || - stream->srcwin_cksum_pos < xd3_source_eof (stream->src))) - { - xoff_t blkno; - xoff_t blkbaseoffset; - usize_t blkrem; - ssize_t oldpos; /* Using ssize_t because of a */ - ssize_t blkpos; /* do { blkpos-- } - while (blkpos >= oldpos); */ - int ret; - xd3_blksize_div (stream->srcwin_cksum_pos, - stream->src, &blkno, &blkrem); - oldpos = blkrem; - - if ((ret = xd3_getblk (stream, blkno))) - { - /* TOOFARBACK should never occur here, since we read forward. */ - if (ret == XD3_TOOFARBACK) - { - ret = XD3_INTERNAL; - } - - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] async getblk return for %"Q"u: %s\n", - blkno, xd3_strerror (ret))); - return ret; - } - - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] block %"Q"u T=%"Q"u S=%"Q"u L=%"Q"u EOF=%"Q"u %s\n", - blkno, - stream->total_in + stream->input_position, - stream->srcwin_cksum_pos, - target_cksum_pos, - xd3_source_eof (stream->src), - stream->src->eof_known ? "known" : "unknown")); - - blkpos = xd3_bytes_on_srcblk (stream->src, blkno); - - if (blkpos < (ssize_t) stream->smatcher.large_look) - { - stream->srcwin_cksum_pos = (blkno + 1) * stream->src->blksize; - IF_DEBUG2 (DP(RINT "[srcwin_move_point] continue (end-of-block): %"Q"u\n", blkpos)); - continue; - } - - /* This inserts checksums for the entire block, in reverse, - * starting from the end of the block. This logic does not test - * stream->srcwin_cksum_pos because it always advances it to the - * start of the next block. - * - * oldpos is the srcwin_cksum_pos within this block. blkpos is - * the number of bytes available. Each iteration inspects - * large_look bytes then steps back large_step bytes. The - * if-stmt above ensures at least one large_look of data. */ - blkpos -= stream->smatcher.large_look; - blkbaseoffset = stream->src->blksize * blkno; - - do - { - uint32_t cksum = xd3_lcksum (stream->src->curblk + blkpos, - stream->smatcher.large_look); - usize_t hval = xd3_checksum_hash (& stream->large_hash, cksum); - - stream->large_table[hval] = - (usize_t) (blkbaseoffset + - (xoff_t)(blkpos + HASH_CKOFFSET)); - - IF_DEBUG (stream->large_ckcnt += 1); - - blkpos -= stream->smatcher.large_step; - } - while (blkpos >= oldpos); - - stream->srcwin_cksum_pos = (blkno + 1) * stream->src->blksize; - } - - if (stream->src->eof_known) - { - xoff_t source_size = xd3_source_eof (stream->src); - if (stream->srcwin_cksum_pos >= source_size) - { - /* This invariant is needed for xd3_source_cksum_offset() */ - stream->srcwin_cksum_pos = source_size; - *next_move_point = USIZE_T_MAX; - IF_DEBUG1 (DP(RINT - "[srcwin_move_point] finished with source input\n")); - return 0; - } - } - - /* How long until this function should be called again. */ - XD3_ASSERT(stream->srcwin_cksum_pos >= target_cksum_pos); - - *next_move_point = stream->input_position + - stream->src->blksize - - ((stream->srcwin_cksum_pos - target_cksum_pos) & stream->src->maskby); - - IF_DEBUG2 (DP(RINT - "[srcwin_move_point] finished T=%"Q"u " - "S=%"Q"u L=%"Q"u EOF=%"Q"u %s again in %u\n", - stream->total_in + stream->input_position, - stream->srcwin_cksum_pos, - target_cksum_pos, - xd3_source_eof (stream->src), - stream->src->eof_known ? "known" : "unknown", - *next_move_point - stream->input_position)); - - return 0; -} - -#endif /* XD3_ENCODER */ - -/******************************************************************** - TEMPLATE pass - *********************************************************************/ - -#endif /* __XDELTA3_C_INLINE_PASS__ */ -#ifdef __XDELTA3_C_TEMPLATE_PASS__ - -#if XD3_ENCODER - -/******************************************************************** - Templates - *******************************************************************/ - -/* Template macros */ -#define XD3_TEMPLATE(x) XD3_TEMPLATE2(x,TEMPLATE) -#define XD3_TEMPLATE2(x,n) XD3_TEMPLATE3(x,n) -#define XD3_TEMPLATE3(x,n) x ## n -#define XD3_STRINGIFY(x) XD3_STRINGIFY2(x) -#define XD3_STRINGIFY2(x) #x - -static int XD3_TEMPLATE(xd3_string_match_) (xd3_stream *stream); - -static const xd3_smatcher XD3_TEMPLATE(__smatcher_) = -{ - XD3_STRINGIFY(TEMPLATE), - XD3_TEMPLATE(xd3_string_match_), -#if SOFTCFG == 1 - 0, 0, 0, 0, 0, 0, 0 -#else - LLOOK, LSTEP, SLOOK, SCHAIN, SLCHAIN, MAXLAZY, LONGENOUGH -#endif -}; - -static int -XD3_TEMPLATE(xd3_string_match_) (xd3_stream *stream) -{ - const int DO_SMALL = ! (stream->flags & XD3_NOCOMPRESS); - const int DO_LARGE = (stream->src != NULL); - const int DO_RUN = (1); - - const uint8_t *inp; - uint32_t scksum = 0; - uint32_t scksum_state = 0; - uint32_t lcksum = 0; - usize_t sinx; - usize_t linx; - uint8_t run_c; - usize_t run_l; - int ret; - usize_t match_length; - usize_t match_offset = 0; - usize_t next_move_point; - - IF_DEBUG2(DP(RINT "[string_match] initial entry %u\n", stream->input_position)); - - /* If there will be no compression due to settings or short input, - * skip it entirely. */ - if (! (DO_SMALL || DO_LARGE || DO_RUN) || - stream->input_position + SLOOK > stream->avail_in) { goto loopnomore; } - - if ((ret = xd3_string_match_init (stream))) { return ret; } - - /* The restartloop label is reached when the incremental loop state - * needs to be reset. */ - restartloop: - - IF_DEBUG2(DP(RINT "[string_match] restartloop %u\n", stream->input_position)); - - /* If there is not enough input remaining for any kind of match, - skip it. */ - if (stream->input_position + SLOOK > stream->avail_in) { goto loopnomore; } - - /* Now reset the incremental loop state: */ - - /* The min_match variable is updated to avoid matching the same lazy - * match over and over again. For example, if you find a (small) - * match of length 9 at one position, you will likely find a match - * of length 8 at the next position. */ - if (xd3_iopt_last_matched (stream) > stream->input_position) - { - stream->min_match = xd3_max (MIN_MATCH, - 1 + xd3_iopt_last_matched(stream) - - stream->input_position); - } - else - { - stream->min_match = MIN_MATCH; - } - - /* The current input byte. */ - inp = stream->next_in + stream->input_position; - - /* Small match state. */ - if (DO_SMALL) - { - scksum = xd3_scksum (&scksum_state, inp, SLOOK); - } - - /* Run state. */ - if (DO_RUN) - { - run_l = xd3_comprun (inp, SLOOK, & run_c); - } - - /* Large match state. We continue the loop even after not enough - * bytes for LLOOK remain, so always check stream->input_position in - * DO_LARGE code. */ - if (DO_LARGE && (stream->input_position + LLOOK <= stream->avail_in)) - { - /* Source window: next_move_point is the point that - * stream->input_position must reach before computing more - * source checksum. Note: this is called unconditionally - * the first time after reentry, subsequent calls will be - * avoided if next_move_point is > input_position */ - if ((ret = xd3_srcwin_move_point (stream, & next_move_point))) - { - return ret; - } - - lcksum = xd3_lcksum (inp, LLOOK); - } - - /* TRYLAZYLEN: True if a certain length match should be followed by - * lazy search. This checks that LEN is shorter than MAXLAZY and - * that there is enough leftover data to consider lazy matching. - * "Enough" is set to 2 since the next match will start at the next - * offset, it must match two extra characters. */ -#define TRYLAZYLEN(LEN,POS,MAX) ((MAXLAZY) > 0 && (LEN) < (MAXLAZY) \ - && (POS) + (LEN) <= (MAX) - 2) - - /* HANDLELAZY: This statement is called each time an instruciton is - * emitted (three cases). If the instruction is large enough, the - * loop is restarted, otherwise lazy matching may ensue. */ -#define HANDLELAZY(mlen) \ - if (TRYLAZYLEN ((mlen), (stream->input_position), (stream->avail_in))) \ - { stream->min_match = (mlen) + LEAST_MATCH_INCR; goto updateone; } \ - else \ - { stream->input_position += (mlen); goto restartloop; } - - /* Now loop over one input byte at a time until a match is found... */ - for (;; inp += 1, stream->input_position += 1) - { - /* Now we try three kinds of string match in order of expense: - * run, large match, small match. */ - - /* Expand the start of a RUN. The test for (run_l == SLOOK) - * avoids repeating this check when we pass through a run area - * performing lazy matching. The run is only expanded once when - * the min_match is first reached. If lazy matching is - * performed, the run_l variable will remain inconsistent until - * the first non-running input character is reached, at which - * time the run_l may then again grow to SLOOK. */ - if (DO_RUN && run_l == SLOOK) - { - usize_t max_len = stream->avail_in - stream->input_position; - - IF_DEBUG (xd3_verify_run_state (stream, inp, run_l, &run_c)); - - while (run_l < max_len && inp[run_l] == run_c) { run_l += 1; } - - /* Output a RUN instruction. */ - if (run_l >= stream->min_match && run_l >= MIN_RUN) - { - if ((ret = xd3_emit_run (stream, stream->input_position, - run_l, &run_c))) { return ret; } - - HANDLELAZY (run_l); - } - } - - /* If there is enough input remaining. */ - if (DO_LARGE && (stream->input_position + LLOOK <= stream->avail_in)) - { - if ((stream->input_position >= next_move_point) && - (ret = xd3_srcwin_move_point (stream, & next_move_point))) - { - return ret; - } - - linx = xd3_checksum_hash (& stream->large_hash, lcksum); - - IF_DEBUG (xd3_verify_large_state (stream, inp, lcksum)); - - if (stream->large_table[linx] != 0) - { - /* the match_setup will fail if the source window has - * been decided and the match lies outside it. - * OPT: Consider forcing a window at this point to - * permit a new source window. */ - xoff_t adj_offset = - xd3_source_cksum_offset(stream, - stream->large_table[linx] - - HASH_CKOFFSET); - if (xd3_source_match_setup (stream, adj_offset) == 0) - { - if ((ret = xd3_source_extend_match (stream))) - { - return ret; - } - - /* Update stream position. match_fwd is zero if no - * match. */ - if (stream->match_fwd > 0) - { - HANDLELAZY (stream->match_fwd); - } - } - } - } - - /* Small matches. */ - if (DO_SMALL) - { - sinx = xd3_checksum_hash (& stream->small_hash, scksum); - - /* Verify incremental state in debugging mode. */ - IF_DEBUG (xd3_verify_small_state (stream, inp, scksum)); - - /* Search for the longest match */ - if (stream->small_table[sinx] != 0) - { - match_length = xd3_smatch (stream, - stream->small_table[sinx], - scksum, - & match_offset); - } - else - { - match_length = 0; - } - - /* Insert a hash for this string. */ - xd3_scksum_insert (stream, sinx, scksum, stream->input_position); - - /* Maybe output a COPY instruction */ - if (match_length >= stream->min_match) - { - IF_DEBUG2 ({ - static int x = 0; - DP(RINT "[target match:%d] " - "(-%d) [ %u bytes ]\n", - x++, - stream->input_position, - stream->input_position + match_length, - match_offset, - match_offset + match_length, - stream->input_position - match_offset, - match_length); - }); - - if ((ret = xd3_found_match (stream, - /* decoder position */ - stream->input_position, - /* length */ match_length, - /* address */ (xoff_t) match_offset, - /* is_source */ 0))) - { - return ret; - } - - /* Copy instruction. */ - HANDLELAZY (match_length); - } - } - - /* The logic above prevents excess work during lazy matching by - * increasing min_match to avoid smaller matches. Each time we - * advance stream->input_position by one, the minimum match - * shortens as well. */ - if (stream->min_match > MIN_MATCH) - { - stream->min_match -= 1; - } - - updateone: - - /* See if there are no more incremental cksums to compute. */ - if (stream->input_position + SLOOK == stream->avail_in) - { - goto loopnomore; - } - - /* Compute next RUN, CKSUM */ - if (DO_RUN) - { - NEXTRUN (inp[SLOOK]); - } - - if (DO_SMALL) - { - scksum = xd3_small_cksum_update (&scksum_state, inp, SLOOK); - } - - if (DO_LARGE && (stream->input_position + LLOOK < stream->avail_in)) - { - lcksum = xd3_large_cksum_update (lcksum, inp, LLOOK); - } - } - - loopnomore: - return 0; -} - -#endif /* XD3_ENCODER */ -#endif /* __XDELTA3_C_TEMPLATE_PASS__ */ diff --git a/extern/xdelta3/xdelta3.h b/extern/xdelta3/xdelta3.h deleted file mode 100644 index 6d7d524..0000000 --- a/extern/xdelta3/xdelta3.h +++ /dev/null @@ -1,1401 +0,0 @@ -/* xdelta 3 - delta compression tools and library - * Copyright (C) Joshua P. MacDonald - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* To know more about Xdelta, start by reading xdelta3.c. If you are - * ready to use the API, continue reading here. There are two - * interfaces -- xd3_encode_input and xd3_decode_input -- plus a dozen - * or so related calls. This interface is styled after Zlib. */ - -#ifndef _XDELTA3_H_ -#define _XDELTA3_H_ - -//#define _POSIX_SOURCE -//#define _ISOC99_SOURCE -//#define _C99_SOURCE - -#include "config.h" - -#include -#include -#include -#include -#include -#include -#include - -/****************************************************************/ - -/* Default configured value of stream->winsize. If the program - * supplies xd3_encode_input() with data smaller than winsize the - * stream will automatically buffer the input, otherwise the input - * buffer is used directly. - */ -#ifndef XD3_DEFAULT_WINSIZE -#define XD3_DEFAULT_WINSIZE (1U << 23) -#endif - -/* Default total size of the source window used in xdelta3-main.h */ -#ifndef XD3_DEFAULT_SRCWINSZ -#define XD3_DEFAULT_SRCWINSZ (1U << 26) -#endif - -/* When Xdelta requests a memory allocation for certain buffers, it - * rounds up to units of at least this size. The code assumes (and - * asserts) that this is a power-of-two. */ -#ifndef XD3_ALLOCSIZE -#define XD3_ALLOCSIZE (1U<<14) -#endif - -/* The XD3_HARDMAXWINSIZE parameter is a safety mechanism to protect - * decoders against malicious files. The decoder will never decode a - * window larger than this. If the file specifies VCD_TARGET the - * decoder may require two buffers of this size. - * - * 8-16MB is reasonable, probably don't need to go larger. */ -#ifndef XD3_HARDMAXWINSIZE -#define XD3_HARDMAXWINSIZE (1U<<24) -#endif -/* The IOPT_SIZE value sets the size of a buffer used to batch - * overlapping copy instructions before they are optimized by picking - * the best non-overlapping ranges. The larger this buffer, the - * longer a forced xd3_srcwin_setup() decision is held off. Setting - * this value to 0 causes an unlimited buffer to be used. */ -#ifndef XD3_DEFAULT_IOPT_SIZE -#define XD3_DEFAULT_IOPT_SIZE (1U<<15) -#endif - -/* The maximum distance backward to search for small matches */ -#ifndef XD3_DEFAULT_SPREVSZ -#define XD3_DEFAULT_SPREVSZ (1U<<18) -#endif - -/* The default compression level - */ -#ifndef XD3_DEFAULT_LEVEL -#define XD3_DEFAULT_LEVEL 0 -#endif - -#ifndef XD3_DEFAULT_SECONDARY_LEVEL -#define XD3_DEFAULT_SECONDARY_LEVEL 0 -#endif - -#ifndef XD3_USE_LARGEFILE64 -#define XD3_USE_LARGEFILE64 0 -#endif - -/* Sizes and addresses within VCDIFF windows are represented as usize_t - * - * For source-file offsets and total file sizes, total input and - * output counts, the xoff_t type is used. The decoder and encoder - * generally check for overflow of the xoff_t size (this is tested at - * the 32bit boundary [xdelta3-test.h]). - */ -#ifndef _WIN32 -#include -#else /* WIN32 case */ -#define WIN32_LEAN_AND_MEAN - -#ifndef WINVER -#if XD3_USE_LARGEFILE64 -/* 64 bit file offsets: uses GetFileSizeEx and SetFilePointerEx. - * requires Win2000 or newer version of WinNT */ -#define WINVER 0x0500 -#define _WIN32_WINNT 0x0500 -#else /* xoff_t is 32bit */ -/* 32 bit (DWORD) file offsets: uses GetFileSize and - * SetFilePointer. compatible with win9x-me and WinNT4 */ -#define WINVER 0x0400 -#define _WIN32_WINNT 0x0400 -#endif /* if XD3_USE_LARGEFILE64 */ -#endif /* ifndef WINVER */ - -#include - -/* _MSV_VER is defined by Microsoft tools, not by mingw32 */ -#ifdef _MSC_VER -/*#define inline*/ -typedef signed int ssize_t; -#if _MSC_VER < 1600 -typedef unsigned char uint8_t; -typedef unsigned short uint16_t; -typedef unsigned long uint32_t; -typedef ULONGLONG uint64_t; -#else /* _MSC_VER >= 1600 */ -/* For MSVC10 and above */ -#include -#endif /* _MSC_VER < 1600 */ -#else /* _MSC_VER not defined */ -/* mingw32, lcc and watcom provide a proper header */ -#include -#endif /* _MSC_VER defined */ -#endif /* _WIN32 defined */ - -typedef uint32_t usize_t; - -#if XD3_USE_LARGEFILE64 -/* xoff_t is a 64-bit type */ -#define __USE_FILE_OFFSET64 1 /* GLIBC: for 64bit fileops, ... ? */ - -#ifndef _LARGEFILE_SOURCE -#define _LARGEFILE_SOURCE -#endif - -#ifndef _FILE_OFFSET_BITS -#define _FILE_OFFSET_BITS 64 -#endif - -#if defined(_WIN32) -typedef uint64_t xoff_t; -/* Note: The following generates benign warnings in a mingw - * cross-compiler */ -#define Q "I64" -#elif SIZEOF_UNSIGNED_LONG == 8 -typedef unsigned long xoff_t; -#define Q "l" -#elif SIZEOF_SIZE_T == 8 -typedef size_t xoff_t; -#define Q "z" -#elif SIZEOF_UNSIGNED_LONG_LONG == 8 -typedef unsigned long long xoff_t; -#define Q "ll" -#endif /* #define Q */ - -#define SIZEOF_XOFF_T 8 - -#else /* XD3_USE_LARGEFILE64 == 0 */ - -#if SIZEOF_UNSIGNED_INT == 4 -typedef unsigned int xoff_t; -#elif SIZEOF_UNSIGNED_LONG == 4 -typedef unsigned long xoff_t; -#else -typedef uint32_t xoff_t; -#endif /* xoff_t is 32 bits */ - -#define SIZEOF_XOFF_T 4 -#define Q -#endif /* 64 vs 32 bit xoff_t */ - -/* Note: This gets modified in the 64bithash branch. */ -#define SIZEOF_USIZE_T 4 - -#if SIZEOF_SIZE_T == 4 -#define _Z_TYPE_ "z" -#elif SIZEOF_SIZE_T == 8 -#ifdef _WIN32 -#define _Z_TYPE_ "I64" -#else /* !_WIN32 */ -#define _Z_TYPE_ "z" -#endif /* Windows or not */ -#else -#error Bad configure script -#endif /* size_t printf flags */ - -#define USE_UINT32 (SIZEOF_USIZE_T == 4 || \ - SIZEOF_XOFF_T == 4 || REGRESSION_TEST) -#define USE_UINT64 (SIZEOF_USIZE_T == 8 || \ - SIZEOF_XOFF_T == 8 || REGRESSION_TEST) - -#ifndef UNALIGNED_OK -#ifdef HAVE_ALIGNED_ACCESS_REQUIRED -#define UNALIGNED_OK 0 -#else -/* This generally includes all Windows builds. */ -#define UNALIGNED_OK 1 -#endif -#endif - -/**********************************************************************/ - -/* Whether to build the encoder, otherwise only build the decoder. */ -#define XD3_ENCODER 1 - -/* The code returned when main() fails, also defined in system - includes. */ -#ifndef EXIT_FAILURE -#define EXIT_FAILURE 1 -#endif - -/* REGRESSION TEST enables the "xdelta3 test" command, which runs a - series of self-tests. */ -#ifndef REGRESSION_TEST -#define REGRESSION_TEST 0 -#endif - -/* XD3_DEBUG=1 enables assertions and various statistics. Levels > 1 - * enable some additional output only useful during development and - * debugging. */ -#ifndef XD3_DEBUG -#define XD3_DEBUG 0 -#endif - -#ifndef PYTHON_MODULE -#define PYTHON_MODULE 0 -#endif - -#ifndef SWIG_MODULE -#define SWIG_MODULE 0 -#endif - -/* There are three string matching functions supplied: one fast, one - * slow (default), and one soft-configurable. To disable any of - * these, use the following definitions. */ -#ifndef XD3_BUILD_SLOW -#define XD3_BUILD_SLOW 1 -#endif -#ifndef XD3_BUILD_FAST -#define XD3_BUILD_FAST 1 -#endif -#ifndef XD3_BUILD_FASTER -#define XD3_BUILD_FASTER 1 -#endif -#ifndef XD3_BUILD_FASTEST -#define XD3_BUILD_FASTEST 1 -#endif -#ifndef XD3_BUILD_SOFT -#define XD3_BUILD_SOFT 1 -#endif -#ifndef XD3_BUILD_DEFAULT -#define XD3_BUILD_DEFAULT 1 -#endif - -#if XD3_DEBUG -#include -#endif - -/* XPRINT. Debug output and VCDIFF_TOOLS functions report to stderr. - * I have used an irregular style to abbreviate [fprintf(stderr, "] as - * [DP(RINT "]. */ -#define DP fprintf -#define RINT stderr, - -typedef struct _xd3_stream xd3_stream; -typedef struct _xd3_source xd3_source; -typedef struct _xd3_hash_cfg xd3_hash_cfg; -typedef struct _xd3_smatcher xd3_smatcher; -typedef struct _xd3_rinst xd3_rinst; -typedef struct _xd3_dinst xd3_dinst; -typedef struct _xd3_hinst xd3_hinst; -typedef struct _xd3_winst xd3_winst; -typedef struct _xd3_rpage xd3_rpage; -typedef struct _xd3_addr_cache xd3_addr_cache; -typedef struct _xd3_output xd3_output; -typedef struct _xd3_desect xd3_desect; -typedef struct _xd3_iopt_buflist xd3_iopt_buflist; -typedef struct _xd3_rlist xd3_rlist; -typedef struct _xd3_sec_type xd3_sec_type; -typedef struct _xd3_sec_cfg xd3_sec_cfg; -typedef struct _xd3_sec_stream xd3_sec_stream; -typedef struct _xd3_config xd3_config; -typedef struct _xd3_code_table_desc xd3_code_table_desc; -typedef struct _xd3_code_table_sizes xd3_code_table_sizes; -typedef struct _xd3_slist xd3_slist; -typedef struct _xd3_whole_state xd3_whole_state; -typedef struct _xd3_wininfo xd3_wininfo; - -/* The stream configuration has three callbacks functions, all of - * which may be supplied with NULL values. If config->getblk is - * provided as NULL, the stream returns XD3_GETSRCBLK. */ - -typedef void* (xd3_alloc_func) (void *opaque, - size_t items, - usize_t size); -typedef void (xd3_free_func) (void *opaque, - void *address); - -typedef int (xd3_getblk_func) (xd3_stream *stream, - xd3_source *source, - xoff_t blkno); - -/* These are internal functions to delay construction of encoding - * tables and support alternate code tables. See the comments & code - * enabled by GENERIC_ENCODE_TABLES. */ - -typedef const xd3_dinst* (xd3_code_table_func) (void); -typedef int (xd3_comp_table_func) (xd3_stream *stream, - const uint8_t **data, - usize_t *size); - - - -#if XD3_DEBUG -#define XD3_ASSERT(x) \ - do { if (! (x)) { DP(RINT "%s:%d: XD3 assertion failed: %s\n", __FILE__, __LINE__, #x); \ - abort (); } } while (0) -#else -#define XD3_ASSERT(x) (void)0 -#endif /* XD3_DEBUG */ - -#define xd3_max(x,y) ((x) < (y) ? (y) : (x)) -#define xd3_min(x,y) ((x) < (y) ? (x) : (y)) - -/**************************************************************** - PUBLIC ENUMS - ******************************************************************/ - -/* These are the five ordinary status codes returned by the - * xd3_encode_input() and xd3_decode_input() state machines. */ -typedef enum { - - /* An application must be prepared to handle these five return - * values from either xd3_encode_input or xd3_decode_input, except - * in the case of no-source compression, in which case XD3_GETSRCBLK - * is never returned. More detailed comments for these are given in - * xd3_encode_input and xd3_decode_input comments, below. */ - XD3_INPUT = -17703, /* need input */ - XD3_OUTPUT = -17704, /* have output */ - XD3_GETSRCBLK = -17705, /* need a block of source input (with no - * xd3_getblk function), a chance to do - * non-blocking read. */ - XD3_GOTHEADER = -17706, /* (decode-only) after the initial VCDIFF & - first window header */ - XD3_WINSTART = -17707, /* notification: returned before a window is - * processed, giving a chance to - * XD3_SKIP_WINDOW or not XD3_SKIP_EMIT that - * window. */ - XD3_WINFINISH = -17708, /* notification: returned after - encode/decode & output for a window */ - XD3_TOOFARBACK = -17709, /* (encoder only) may be returned by - getblk() if the block is too old */ - XD3_INTERNAL = -17710, /* internal error */ - XD3_INVALID = -17711, /* invalid config */ - XD3_INVALID_INPUT = -17712, /* invalid input/decoder error */ - XD3_NOSECOND = -17713, /* when secondary compression finds no - improvement. */ - XD3_UNIMPLEMENTED = -17714 /* currently VCD_TARGET, VCD_CODETABLE */ -} xd3_rvalues; - -/* special values in config->flags */ -typedef enum -{ - XD3_JUST_HDR = (1 << 1), /* used by VCDIFF tools, see - xdelta3-main.h. */ - XD3_SKIP_WINDOW = (1 << 2), /* used by VCDIFF tools, see - xdelta3-main.h. */ - XD3_SKIP_EMIT = (1 << 3), /* used by VCDIFF tools, see - xdelta3-main.h. */ - XD3_FLUSH = (1 << 4), /* flush the stream buffer to - prepare for - xd3_stream_close(). */ - - XD3_SEC_DJW = (1 << 5), /* use DJW static huffman */ - XD3_SEC_FGK = (1 << 6), /* use FGK adaptive huffman */ - XD3_SEC_LZMA = (1 << 24), /* use LZMA secondary */ - - XD3_SEC_TYPE = (XD3_SEC_DJW | XD3_SEC_FGK | XD3_SEC_LZMA), - - XD3_SEC_NODATA = (1 << 7), /* disable secondary compression of - the data section. */ - XD3_SEC_NOINST = (1 << 8), /* disable secondary compression of - the inst section. */ - XD3_SEC_NOADDR = (1 << 9), /* disable secondary compression of - the addr section. */ - - XD3_SEC_NOALL = (XD3_SEC_NODATA | XD3_SEC_NOINST | XD3_SEC_NOADDR), - - XD3_ADLER32 = (1 << 10), /* enable checksum computation in - the encoder. */ - XD3_ADLER32_NOVER = (1 << 11), /* disable checksum verification in - the decoder. */ - - XD3_NOCOMPRESS = (1 << 13), /* disable ordinary data - * compression feature, only search - * the source, not the target. */ - XD3_BEGREEDY = (1 << 14), /* disable the "1.5-pass - * algorithm", instead use greedy - * matching. Greedy is off by - * default. */ - XD3_ADLER32_RECODE = (1 << 15), /* used by "recode". */ - - /* 4 bits to set the compression level the same as the command-line - * setting -1 through -9 (-0 corresponds to the XD3_NOCOMPRESS flag, - * and is independent of compression level). This is for - * convenience, especially with xd3_encode_memory(). */ - - XD3_COMPLEVEL_SHIFT = 20, /* 20 - 23 */ - XD3_COMPLEVEL_MASK = (0xF << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_1 = (1 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_2 = (2 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_3 = (3 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_6 = (6 << XD3_COMPLEVEL_SHIFT), - XD3_COMPLEVEL_9 = (9 << XD3_COMPLEVEL_SHIFT) - -} xd3_flags; - -/* The values of this enumeration are set in xd3_config using the - * smatch_cfg variable. It can be set to default, slow, fast, etc., - * and soft. */ -typedef enum -{ - XD3_SMATCH_DEFAULT = 0, /* Flags may contain XD3_COMPLEVEL bits, - else default. */ - XD3_SMATCH_SLOW = 1, - XD3_SMATCH_FAST = 2, - XD3_SMATCH_FASTER = 3, - XD3_SMATCH_FASTEST = 4, - XD3_SMATCH_SOFT = 5 -} xd3_smatch_cfg; - -/********************************************************************* - PRIVATE ENUMS -**********************************************************************/ - -/* stream->match_state is part of the xd3_encode_input state machine - * for source matching: - * - * 1. the XD3_GETSRCBLK block-read mechanism means reentrant matching - * 2. this state spans encoder windows: a match and end-of-window - * will continue in the next 3. the initial target byte and source - * byte are a presumed match, to avoid some computation in case the - * inputs are identical. - */ -typedef enum { - - MATCH_TARGET = 0, /* in this state, attempt to match the start of - * the target with the previously set source - * address (initially 0). */ - MATCH_BACKWARD = 1, /* currently expanding a match backward in the - source/target. */ - MATCH_FORWARD = 2, /* currently expanding a match forward in the - source/target. */ - MATCH_SEARCHING = 3 /* currently searching for a match. */ - -} xd3_match_state; - -/* The xd3_encode_input state machine steps through these states in - * the following order. The matcher is reentrant and returns - * XD3_INPUT whenever it requires more data. After receiving - * XD3_INPUT, if the application reads EOF it should call - * xd3_stream_close(). - */ -typedef enum { - - ENC_INIT = 0, /* xd3_encode_input has never been called. */ - ENC_INPUT = 1, /* waiting for xd3_avail_input () to be called. */ - ENC_SEARCH = 2, /* currently searching for matches. */ - ENC_INSTR = 3, /* currently formatting output. */ - ENC_FLUSH = 4, /* currently emitting output. */ - ENC_POSTOUT = 5, /* after an output section. */ - ENC_POSTWIN = 6, /* after all output sections. */ - ENC_ABORTED = 7 /* abort. */ -} xd3_encode_state; - -/* The xd3_decode_input state machine steps through these states in - * the following order. The matcher is reentrant and returns - * XD3_INPUT whenever it requires more data. After receiving - * XD3_INPUT, if the application reads EOF it should call - * xd3_stream_close(). - * - * 0-8: the VCDIFF header - * 9-18: the VCDIFF window header - * 19-21: the three primary sections: data, inst, addr - * 22: producing output: returns XD3_OUTPUT, possibly XD3_GETSRCBLK, - * 23: return XD3_WINFINISH, set state=9 to decode more input - */ -typedef enum { - - DEC_VCHEAD = 0, /* VCDIFF header */ - DEC_HDRIND = 1, /* header indicator */ - - DEC_SECONDID = 2, /* secondary compressor ID */ - - DEC_TABLEN = 3, /* code table length */ - DEC_NEAR = 4, /* code table near */ - DEC_SAME = 5, /* code table same */ - DEC_TABDAT = 6, /* code table data */ - - DEC_APPLEN = 7, /* application data length */ - DEC_APPDAT = 8, /* application data */ - - DEC_WININD = 9, /* window indicator */ - - DEC_CPYLEN = 10, /* copy window length */ - DEC_CPYOFF = 11, /* copy window offset */ - - DEC_ENCLEN = 12, /* length of delta encoding */ - DEC_TGTLEN = 13, /* length of target window */ - DEC_DELIND = 14, /* delta indicator */ - - DEC_DATALEN = 15, /* length of ADD+RUN data */ - DEC_INSTLEN = 16, /* length of instruction data */ - DEC_ADDRLEN = 17, /* length of address data */ - - DEC_CKSUM = 18, /* window checksum */ - - DEC_DATA = 19, /* data section */ - DEC_INST = 20, /* instruction section */ - DEC_ADDR = 21, /* address section */ - - DEC_EMIT = 22, /* producing data */ - - DEC_FINISH = 23, /* window finished */ - - DEC_ABORTED = 24 /* xd3_abort_stream */ -} xd3_decode_state; - -/************************************************************ - internal types - ************************************************************/ - -/* instruction lists used in the IOPT buffer */ -struct _xd3_rlist -{ - xd3_rlist *next; - xd3_rlist *prev; -}; - -/* the raw encoding of an instruction used in the IOPT buffer */ -struct _xd3_rinst -{ - uint8_t type; - uint8_t xtra; - uint8_t code1; - uint8_t code2; - usize_t pos; - usize_t size; - xoff_t addr; - xd3_rlist link; -}; - -/* the code-table form of an single- or double-instruction */ -struct _xd3_dinst -{ - uint8_t type1; - uint8_t size1; - uint8_t type2; - uint8_t size2; -}; - -/* the decoded form of a single (half) instruction. */ -struct _xd3_hinst -{ - uint8_t type; - uint32_t size; /* TODO: why decode breaks if this is usize_t? */ - uint32_t addr; /* TODO: why decode breaks if this is usize_t? */ -}; - -/* the form of a whole-file instruction */ -struct _xd3_winst -{ - uint8_t type; /* RUN, ADD, COPY */ - uint8_t mode; /* 0, VCD_SOURCE, VCD_TARGET */ - usize_t size; - xoff_t addr; - xoff_t position; /* absolute position of this inst */ -}; - -/* used by the encoder to buffer output in sections. list of blocks. */ -struct _xd3_output -{ - uint8_t *base; - usize_t next; - usize_t avail; - xd3_output *next_page; -}; - -/* used by the decoder to buffer input in sections. */ -struct _xd3_desect -{ - const uint8_t *buf; - const uint8_t *buf_max; - uint32_t size; /* TODO: why decode breaks if this is usize_t? */ - usize_t pos; - - /* used in xdelta3-decode.h */ - uint8_t *copied1; - usize_t alloc1; - - /* used in xdelta3-second.h */ - uint8_t *copied2; - usize_t alloc2; -}; - -/* the VCDIFF address cache, see the RFC */ -struct _xd3_addr_cache -{ - usize_t s_near; - usize_t s_same; - usize_t next_slot; /* the circular index for near */ - usize_t *near_array; /* array of size s_near */ - usize_t *same_array; /* array of size s_same*256 */ -}; - -/* the IOPT buffer list is just a list of buffers, which may be allocated - * during encode when using an unlimited buffer. */ -struct _xd3_iopt_buflist -{ - xd3_rinst *buffer; - xd3_iopt_buflist *next; -}; - -/* This is the record of a pre-compiled configuration, a subset of - xd3_config. */ -struct _xd3_smatcher -{ - const char *name; - int (*string_match) (xd3_stream *stream); - usize_t large_look; - usize_t large_step; - usize_t small_look; - usize_t small_chain; - usize_t small_lchain; - usize_t max_lazy; - usize_t long_enough; -}; - -/* hash table size & power-of-two hash function. */ -struct _xd3_hash_cfg -{ - usize_t size; - usize_t shift; - usize_t mask; -}; - -/* the sprev list */ -struct _xd3_slist -{ - usize_t last_pos; -}; - -/* window info (for whole state) */ -struct _xd3_wininfo { - xoff_t offset; - usize_t length; - uint32_t adler32; -}; - -/* whole state for, e.g., merge */ -struct _xd3_whole_state { - usize_t addslen; - uint8_t *adds; - usize_t adds_alloc; - - usize_t instlen; - xd3_winst *inst; - usize_t inst_alloc; - - usize_t wininfolen; - xd3_wininfo *wininfo; - usize_t wininfo_alloc; - - xoff_t length; -}; - -/******************************************************************** - public types - *******************************************************************/ - -/* Settings for the secondary compressor. */ -struct _xd3_sec_cfg -{ - int data_type; /* Which section. (set automatically) */ - usize_t ngroups; /* Number of DJW Huffman groups. */ - usize_t sector_size; /* Sector size. */ - int inefficient; /* If true, ignore efficiency check [avoid XD3_NOSECOND]. */ -}; - -/* This is the user-visible stream configuration. */ -struct _xd3_config -{ - usize_t winsize; /* The encoder window size. */ - usize_t sprevsz; /* How far back small string - matching goes */ - usize_t iopt_size; /* entries in the - instruction-optimizing - buffer */ - - xd3_getblk_func *getblk; /* The three callbacks. */ - xd3_alloc_func *alloc; - xd3_free_func *freef; - void *opaque; /* Not used. */ - int flags; /* stream->flags are initialized - * from xd3_config & never - * modified by the library. Use - * xd3_set_flags to modify flags - * settings mid-stream. */ - - xd3_sec_cfg sec_data; /* Secondary compressor config: data */ - xd3_sec_cfg sec_inst; /* Secondary compressor config: inst */ - xd3_sec_cfg sec_addr; /* Secondary compressor config: addr */ - - xd3_smatch_cfg smatch_cfg; /* See enum: use fields below for - soft config */ - xd3_smatcher smatcher_soft; -}; - -/* The primary source file object. You create one of these objects and - * initialize the first four fields. This library maintains the next - * 5 fields. The configured getblk implementation is responsible for - * setting the final 3 fields when called (and/or when XD3_GETSRCBLK - * is returned). - */ -struct _xd3_source -{ - /* you set */ - usize_t blksize; /* block size */ - const char *name; /* its name, for debug/print - purposes */ - void *ioh; /* opaque handle */ - xoff_t max_winsize; /* maximum visible buffer */ - - /* getblk sets */ - xoff_t curblkno; /* current block number: client - sets after getblk request */ - usize_t onblk; /* number of bytes on current - block: client sets, must be >= 0 - and <= blksize */ - const uint8_t *curblk; /* current block array: client - sets after getblk request */ - - /* xd3 sets */ - usize_t srclen; /* length of this source window */ - xoff_t srcbase; /* offset of this source window - in the source itself */ - int shiftby; /* for power-of-two blocksizes */ - int maskby; /* for power-of-two blocksizes */ - xoff_t cpyoff_blocks; /* offset of dec_cpyoff in blocks */ - usize_t cpyoff_blkoff; /* offset of copy window in - blocks, remainder */ - xoff_t getblkno; /* request block number: xd3 sets - current getblk request */ - - /* See xd3_getblk() */ - xoff_t max_blkno; /* Maximum block, if eof is known, - * otherwise, equals frontier_blkno - * (initially 0). */ - usize_t onlastblk; /* Number of bytes on max_blkno */ - int eof_known; /* Set to true when the first - * partial block is read. */ -}; - -/* The primary xd3_stream object, used for encoding and decoding. You - * may access only two fields: avail_out, next_out. Use the methods - * above to operate on xd3_stream. */ -struct _xd3_stream -{ - /* input state */ - const uint8_t *next_in; /* next input byte */ - usize_t avail_in; /* number of bytes available at - next_in */ - xoff_t total_in; /* how many bytes in */ - - /* output state */ - uint8_t *next_out; /* next output byte */ - usize_t avail_out; /* number of bytes available at - next_out */ - usize_t space_out; /* total out space */ - xoff_t current_window; /* number of windows encoded/decoded */ - xoff_t total_out; /* how many bytes out */ - - /* to indicate an error, xd3 sets */ - const char *msg; /* last error message, NULL if - no error */ - - /* source configuration */ - xd3_source *src; /* source array */ - - /* encoder memory configuration */ - usize_t winsize; /* suggested window size */ - usize_t sprevsz; /* small string, previous window - size (power of 2) */ - usize_t sprevmask; /* small string, previous window - size mask */ - usize_t iopt_size; - usize_t iopt_unlimited; - - /* general configuration */ - xd3_getblk_func *getblk; /* set nxtblk, nxtblkno to scanblkno */ - xd3_alloc_func *alloc; /* malloc function */ - xd3_free_func *free; /* free function */ - void* opaque; /* private data object passed to - alloc, free, and getblk */ - int flags; /* various options */ - - /* secondary compressor configuration */ - xd3_sec_cfg sec_data; /* Secondary compressor config: data */ - xd3_sec_cfg sec_inst; /* Secondary compressor config: inst */ - xd3_sec_cfg sec_addr; /* Secondary compressor config: addr */ - - xd3_smatcher smatcher; - - usize_t *large_table; /* table of large checksums */ - xd3_hash_cfg large_hash; /* large hash config */ - - usize_t *small_table; /* table of small checksums */ - xd3_slist *small_prev; /* table of previous offsets, - circular linked list */ - int small_reset; /* true if small table should - be reset */ - - xd3_hash_cfg small_hash; /* small hash config */ - xd3_addr_cache acache; /* the vcdiff address cache */ - xd3_encode_state enc_state; /* state of the encoder */ - - usize_t taroff; /* base offset of the target input */ - usize_t input_position; /* current input position */ - usize_t min_match; /* current minimum match - length, avoids redundent - matches */ - usize_t unencoded_offset; /* current input, first - * unencoded offset. this value - * is <= the first instruction's - * position in the iopt buffer, - * if there is at least one - * match in the buffer. */ - - /* SRCWIN */ - int srcwin_decided; /* boolean: true if srclen and - srcbase have been - decided. */ - int srcwin_decided_early; /* boolean: true if srclen - and srcbase were - decided early. */ - xoff_t srcwin_cksum_pos; /* Source checksum position */ - - /* MATCH */ - xd3_match_state match_state; /* encoder match state */ - xoff_t match_srcpos; /* current match source - position relative to - srcbase */ - xoff_t match_last_srcpos; /* previously attempted - * srcpos, to avoid loops. */ - xoff_t match_minaddr; /* smallest matching address to - * set window params (reset each - * window xd3_encode_reset) */ - xoff_t match_maxaddr; /* largest matching address to - * set window params (reset each - * window xd3_encode_reset) */ - usize_t match_back; /* match extends back so far */ - usize_t match_maxback; /* match extends back maximum */ - usize_t match_fwd; /* match extends forward so far */ - usize_t match_maxfwd; /* match extends forward maximum */ - - xoff_t maxsrcaddr; /* address of the last source - match (across windows) */ - - uint8_t *buf_in; /* for saving buffered input */ - usize_t buf_avail; /* amount of saved input */ - const uint8_t *buf_leftover; /* leftover content of next_in - (i.e., user's buffer) */ - usize_t buf_leftavail; /* amount of leftover content */ - - xd3_output *enc_current; /* current output buffer */ - xd3_output *enc_free; /* free output buffers */ - xd3_output *enc_heads[4]; /* array of encoded outputs: - head of chain */ - xd3_output *enc_tails[4]; /* array of encoded outputs: - tail of chain */ - uint32_t recode_adler32; /* set the adler32 checksum - * during "recode". */ - - xd3_rlist iopt_used; /* instruction optimizing buffer */ - xd3_rlist iopt_free; - xd3_rinst *iout; /* next single instruction */ - xd3_iopt_buflist *iopt_alloc; - - const uint8_t *enc_appheader; /* application header to encode */ - usize_t enc_appheadsz; /* application header size */ - - /* decoder stuff */ - xd3_decode_state dec_state; /* current DEC_XXX value */ - usize_t dec_hdr_ind; /* VCDIFF header indicator */ - usize_t dec_win_ind; /* VCDIFF window indicator */ - usize_t dec_del_ind; /* VCDIFF delta indicator */ - - uint8_t dec_magic[4]; /* First four bytes */ - usize_t dec_magicbytes; /* Magic position. */ - - usize_t dec_secondid; /* Optional secondary compressor ID. */ - - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_codetblsz; /* Optional code table: length. */ - uint8_t *dec_codetbl; /* Optional code table: storage. */ - usize_t dec_codetblbytes; /* Optional code table: position. */ - - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_appheadsz; /* Optional application header: - size. */ - uint8_t *dec_appheader; /* Optional application header: - storage */ - usize_t dec_appheadbytes; /* Optional application header: - position. */ - - usize_t dec_cksumbytes; /* Optional checksum: position. */ - uint8_t dec_cksum[4]; /* Optional checksum: storage. */ - uint32_t dec_adler32; /* Optional checksum: value. */ - - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_cpylen; /* length of copy window - (VCD_SOURCE or VCD_TARGET) */ - xoff_t dec_cpyoff; /* offset of copy window - (VCD_SOURCE or VCD_TARGET) */ - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_enclen; /* length of delta encoding */ - /* TODO: why decode breaks if this is usize_t? */ - uint32_t dec_tgtlen; /* length of target window */ - -#if USE_UINT64 - uint64_t dec_64part; /* part of a decoded uint64_t */ -#endif -#if USE_UINT32 - uint32_t dec_32part; /* part of a decoded uint32_t */ -#endif - - xoff_t dec_winstart; /* offset of the start of - current target window */ - xoff_t dec_window_count; /* == current_window + 1 in - DEC_FINISH */ - usize_t dec_winbytes; /* bytes of the three sections - so far consumed */ - usize_t dec_hdrsize; /* VCDIFF + app header size */ - - const uint8_t *dec_tgtaddrbase; /* Base of decoded target - addresses (addr >= - dec_cpylen). */ - const uint8_t *dec_cpyaddrbase; /* Base of decoded copy - addresses (addr < - dec_cpylen). */ - - usize_t dec_position; /* current decoder position - counting the cpylen - offset */ - usize_t dec_maxpos; /* maximum decoder position - counting the cpylen - offset */ - xd3_hinst dec_current1; /* current instruction */ - xd3_hinst dec_current2; /* current instruction */ - - uint8_t *dec_buffer; /* Decode buffer */ - uint8_t *dec_lastwin; /* In case of VCD_TARGET, the - last target window. */ - usize_t dec_lastlen; /* length of the last target - window */ - xoff_t dec_laststart; /* offset of the start of last - target window */ - usize_t dec_lastspace; /* allocated space of last - target window, for reuse */ - - xd3_desect inst_sect; /* staging area for decoding - window sections */ - xd3_desect addr_sect; - xd3_desect data_sect; - - xd3_code_table_func *code_table_func; - xd3_comp_table_func *comp_table_func; - const xd3_dinst *code_table; - const xd3_code_table_desc *code_table_desc; - xd3_dinst *code_table_alloc; - - /* secondary compression */ - const xd3_sec_type *sec_type; - xd3_sec_stream *sec_stream_d; - xd3_sec_stream *sec_stream_i; - xd3_sec_stream *sec_stream_a; - - /* state for reconstructing whole files (e.g., for merge), this only - * supports loading USIZE_T_MAX instructions, adds, etc. */ - xd3_whole_state whole_target; - - /* statistics */ - xoff_t n_scpy; - xoff_t n_tcpy; - xoff_t n_add; - xoff_t n_run; - - xoff_t l_scpy; - xoff_t l_tcpy; - xoff_t l_add; - xoff_t l_run; - - usize_t i_slots_used; - -#if XD3_DEBUG - usize_t large_ckcnt; - - /* memory usage */ - usize_t alloc_cnt; - usize_t free_cnt; -#endif -}; - -/************************************************************************** - PUBLIC FUNCTIONS - **************************************************************************/ - -#ifdef __cplusplus -extern "C" { -#endif -/* This function configures an xd3_stream using the provided in-memory - * input buffer, source buffer, output buffer, and flags. The output - * array must be large enough or else ENOSPC will be returned. This - * is the simplest in-memory encoding interface. */ -int xd3_encode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output_buffer, - usize_t *output_size, - usize_t avail_output, - int flags); - -/* The reverse of xd3_encode_memory. */ -int xd3_decode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output_buf, - usize_t *output_size, - usize_t avail_output, - int flags); - -/* This function encodes an in-memory input using a pre-configured - * xd3_stream. This allows the caller to set a variety of options - * which are not available in the xd3_encode/decode_memory() - * functions. - * - * The output array must be large enough to hold the output or else - * ENOSPC is returned. The source (if any) should be set using - * xd3_set_source_and_size() with a single-block xd3_source. This - * calls the underlying non-blocking interfaces, - * xd3_encode/decode_input(), handling the necessary input/output - * states. This method may be considered a reference for any - * application using xd3_encode_input() directly. - * - * xd3_stream stream; - * xd3_config config; - * xd3_source src; - * - * memset (& src, 0, sizeof (src)); - * memset (& stream, 0, sizeof (stream)); - * memset (& config, 0, sizeof (config)); - * - * if (source != NULL) - * { - * src.size = source_size; - * src.blksize = source_size; - * src.curblkno = 0; - * src.onblk = source_size; - * src.curblk = source; - * src.max_winsize = source_size; - * xd3_set_source(&stream, &src); - * } - * - * config.flags = flags; - * config.winsize = input_size; - * - * ... set smatcher, appheader, encoding-table, compression-level, etc. - * - * xd3_config_stream(&stream, &config); - * xd3_encode_stream(&stream, ...); - * xd3_free_stream(&stream); - */ -int xd3_encode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t avail_output); - -/* The reverse of xd3_encode_stream. */ -int xd3_decode_stream (xd3_stream *stream, - const uint8_t *input, - usize_t input_size, - uint8_t *output, - usize_t *output_size, - usize_t avail_size); - -/* This is the non-blocking interface. - * - * Handling input and output states is the same for encoding or - * decoding using the xd3_avail_input() and xd3_consume_output() - * routines, inlined below. - * - * Return values: - * - * XD3_INPUT: the process requires more input: call - * xd3_avail_input() then repeat - * - * XD3_OUTPUT: the process has more output: read stream->next_out, - * stream->avail_out, then call xd3_consume_output(), - * then repeat - * - * XD3_GOTHEADER: (decoder-only) notification returned following the - * VCDIFF header and first window header. the decoder - * may use the header to configure itself. - * - * XD3_WINSTART: a general notification returned once for each - * window except the 0-th window, which is implied by - * XD3_GOTHEADER. It is recommended to use a - * switch-stmt such as: - * - * ... - * again: - * switch ((ret = xd3_decode_input (stream))) { - * case XD3_GOTHEADER: { - * assert(stream->current_window == 0); - * stuff; - * } - * // fallthrough - * case XD3_WINSTART: { - * something(stream->current_window); - * goto again; - * } - * ... - * - * XD3_WINFINISH: a general notification, following the complete - * input & output of a window. at this point, - * stream->total_in and stream->total_out are consistent - * for either encoding or decoding. - * - * XD3_GETSRCBLK: If the xd3_getblk() callback is NULL, this value - * is returned to initiate a non-blocking source read. - */ -int xd3_decode_input (xd3_stream *stream); -int xd3_encode_input (xd3_stream *stream); - -/* The xd3_config structure is used to initialize a stream - all data - * is copied into stream so config may be a temporary variable. See - * the [documentation] or comments on the xd3_config structure. */ -int xd3_config_stream (xd3_stream *stream, - xd3_config *config); - -/* Since Xdelta3 doesn't open any files, xd3_close_stream is just an - * error check that the stream is in a proper state to be closed: this - * means the encoder is flushed and the decoder is at a window - * boundary. The application is responsible for freeing any of the - * resources it supplied. */ -int xd3_close_stream (xd3_stream *stream); - -/* This arranges for closes the stream to succeed. Does not free the - * stream.*/ -void xd3_abort_stream (xd3_stream *stream); - -/* xd3_free_stream frees all memory allocated for the stream. The - * application is responsible for freeing any of the resources it - * supplied. */ -void xd3_free_stream (xd3_stream *stream); - -/* This function informs the encoder or decoder that source matching - * (i.e., delta-compression) is possible. For encoding, this should - * be called before the first xd3_encode_input. A NULL source is - * ignored. For decoding, this should be called before the first - * window is decoded, but the appheader may be read first - * (XD3_GOTHEADER). After decoding the header, call xd3_set_source() - * if you have a source file. Note: if (stream->dec_win_ind & VCD_SOURCE) - * is true, it means the first window expects there to be a source file. - */ -int xd3_set_source (xd3_stream *stream, - xd3_source *source); - -/* If the source size is known, call this instead of xd3_set_source(). - * to avoid having stream->getblk called (and/or to avoid XD3_GETSRCBLK). - * - * Follow these steps: - xd3_source source; - memset(&source, 0, sizeof(source)); - source.blksize = size; - source.onblk = size; - source.curblk = buf; - source.curblkno = 0; - int ret = xd3_set_source_and_size(&stream, &source, size); - ... - */ -int xd3_set_source_and_size (xd3_stream *stream, - xd3_source *source, - xoff_t source_size); - -/* This should be called before the first call to xd3_encode_input() - * to include application-specific data in the VCDIFF header. */ -void xd3_set_appheader (xd3_stream *stream, - const uint8_t *data, - usize_t size); - -/* xd3_get_appheader may be called in the decoder after XD3_GOTHEADER. - * For convenience, the decoder always adds a single byte padding to - * the end of the application header, which is set to zero in case the - * application header is a string. */ -int xd3_get_appheader (xd3_stream *stream, - uint8_t **data, - usize_t *size); - -/* To generate a VCDIFF encoded delta with xd3_encode_init() from - * another format, use: - * - * xd3_encode_init_partial() -- initialze encoder state (w/o hash tables) - * xd3_init_cache() -- reset VCDIFF address cache - * xd3_found_match() -- to report a copy instruction - * - * set stream->enc_state to ENC_INSTR and call xd3_encode_input as usual. - */ -int xd3_encode_init_partial (xd3_stream *stream); -void xd3_init_cache (xd3_addr_cache* acache); -int xd3_found_match (xd3_stream *stream, - usize_t pos, usize_t size, - xoff_t addr, int is_source); - -/* Gives an error string for xdelta3-speficic errors, returns NULL for - system errors */ -const char* xd3_strerror (int ret); - -/* For convenience, zero & initialize the xd3_config structure with - specified flags. */ -static inline -void xd3_init_config (xd3_config *config, - int flags) -{ - memset (config, 0, sizeof (*config)); - config->flags = flags; -} - -/* This supplies some input to the stream. - * - * For encoding, if the input is larger than the configured window - * size (xd3_config.winsize), the entire input will be consumed and - * encoded anyway. If you wish to strictly limit the window size, - * limit the buffer passed to xd3_avail_input to the window size. - * - * For encoding, if the input is smaller than the configured window - * size (xd3_config.winsize), the library will create a window-sized - * buffer and accumulate input until a full-sized window can be - * encoded. XD3_INPUT will be returned. The input must remain valid - * until the next time xd3_encode_input() returns XD3_INPUT. - * - * For decoding, the input will be consumed entirely before XD3_INPUT - * is returned again. - */ -static inline -void xd3_avail_input (xd3_stream *stream, - const uint8_t *idata, - usize_t isize) -{ - /* Even if isize is zero, the code expects a non-NULL idata. Why? - * It uses this value to determine whether xd3_avail_input has ever - * been called. If xd3_encode_input is called before - * xd3_avail_input it will return XD3_INPUT right away without - * allocating a stream->winsize buffer. This is to avoid an - * unwanted allocation. */ - XD3_ASSERT (idata != NULL || isize == 0); - - stream->next_in = idata; - stream->avail_in = isize; -} - -/* This acknowledges receipt of output data, must be called after any - * XD3_OUTPUT return. */ -static inline -void xd3_consume_output (xd3_stream *stream) -{ - stream->avail_out = 0; -} - -/* These are set for each XD3_WINFINISH return. */ -static inline -int xd3_encoder_used_source (xd3_stream *stream) { - return stream->src != NULL && stream->src->srclen > 0; -} -static inline -xoff_t xd3_encoder_srcbase (xd3_stream *stream) { - return stream->src->srcbase; -} -static inline -usize_t xd3_encoder_srclen (xd3_stream *stream) { - return stream->src->srclen; -} - -/* Checks for legal flag changes. */ -static inline -void xd3_set_flags (xd3_stream *stream, int flags) -{ - /* The bitwise difference should contain only XD3_FLUSH or - XD3_SKIP_WINDOW */ - XD3_ASSERT(((flags ^ stream->flags) & ~(XD3_FLUSH | XD3_SKIP_WINDOW)) == 0); - stream->flags = flags; -} - -/* Gives some extra information about the latest library error, if any - * is known. */ -static inline -const char* xd3_errstring (xd3_stream *stream) -{ - return stream->msg ? stream->msg : ""; -} - - -/* 64-bit divisions are expensive, which is why we require a - * power-of-two source->blksize. To relax this restriction is - * relatively easy, see the history for xd3_blksize_div(). */ -static inline -void xd3_blksize_div (const xoff_t offset, - const xd3_source *source, - xoff_t *blkno, - usize_t *blkoff) { - *blkno = (xoff_t) (offset >> source->shiftby); - *blkoff = (usize_t) (offset & source->maskby); - XD3_ASSERT (*blkoff < source->blksize); -} - -static inline -void xd3_blksize_add (xoff_t *blkno, - usize_t *blkoff, - const xd3_source *source, - const usize_t add) -{ - usize_t blkdiff; - - /* Does not check for overflow, checked in xdelta3-decode.h. */ - *blkoff += add; - blkdiff = *blkoff >> source->shiftby; - - if (blkdiff) - { - *blkno += blkdiff; - *blkoff &= source->maskby; - } - - XD3_ASSERT (*blkoff < source->blksize); -} - -#ifdef __cplusplus -} -#endif - -#define XD3_NOOP 0U -#define XD3_ADD 1U -#define XD3_RUN 2U -#define XD3_CPY 3U /* XD3_CPY rtypes are represented as (XD3_CPY + - * copy-mode value) */ - -#if XD3_DEBUG -#define IF_DEBUG(x) x -#else -#define IF_DEBUG(x) -#endif -#if XD3_DEBUG > 1 -#define IF_DEBUG1(x) x -#else -#define IF_DEBUG1(x) -#endif -#if XD3_DEBUG > 2 -#define IF_DEBUG2(x) x -#else -#define IF_DEBUG2(x) -#endif - -#define SIZEOF_ARRAY(x) (sizeof(x) / sizeof(x[0])) - -#endif /* _XDELTA3_H_ */ diff --git a/extern/xdelta3/xdelta3.i b/extern/xdelta3/xdelta3.i deleted file mode 100644 index 2fea015..0000000 --- a/extern/xdelta3/xdelta3.i +++ /dev/null @@ -1,85 +0,0 @@ -%module xdelta3 -%import cstring.i -%import argcargv.i -%{ -#include "xdelta3.h" - -int xd3_main_cmdline (int ARGC, char **ARGV); -%} - -%cstring_input_binary(const char *input, unsigned int input_size); -%cstring_input_binary(const char *source, unsigned int source_size); - -%define %max_output_withsize(TYPEMAP, SIZE, MAXSIZE) -%typemap(in) MAXSIZE (unsigned int alloc_size) { - $1 = alloc_size = PyInt_AsLong(obj2); -} -%typemap(in,numinputs=0) (TYPEMAP, SIZE) { -} -%typemap(check) (TYPEMAP, SIZE) { - // alloc_size input is #7th position in xd3_xxcode_memory() - $1 = malloc(alloc_size7); - $2 = &alloc_size7; -} -%typemap(argout,fragment="t_output_helper") (TYPEMAP, SIZE) { - if (result == 0) { - PyObject *o; - // alloc_size7 now carries actual size - o = PyString_FromStringAndSize($1,alloc_size7); - $result = t_output_helper($result,o); - } else { - $result = t_output_helper($result,Py_None); - } - free($1); -} -%typemap(default) int flags { - $1 = 0; -} -%enddef - -%max_output_withsize(char *output_buf, unsigned int *output_size, unsigned int max_output); - -int xd3_encode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output_buffer, - usize_t *output_size, - usize_t avail_output, - int flags); - -int xd3_decode_memory (const uint8_t *input, - usize_t input_size, - const uint8_t *source, - usize_t source_size, - uint8_t *output_buf, - usize_t *output_size, - usize_t avail_output, - int flags); - -int xd3_main_cmdline (int ARGC, char **ARGV); - -/* Is this the right way? */ -enum { - /*XD3_JUST_HDR,*/ - /*XD3_SKIP_WINDOW,*/ - /*XD3_SKIP_EMIT,*/ - /*XD3_FLUSH,*/ - XD3_SEC_DJW, - XD3_SEC_FGK, - /*XD3_SEC_TYPE,*/ - XD3_SEC_NODATA, - XD3_SEC_NOINST, - XD3_SEC_NOADDR, - /*XD3_SEC_OTHER,*/ - XD3_ADLER32, - XD3_ADLER32_NOVER, - XD3_NOCOMPRESS, - XD3_BEGREEDY, - XD3_COMPLEVEL_SHIFT, - XD3_COMPLEVEL_MASK, - XD3_COMPLEVEL_1, - XD3_COMPLEVEL_3, - XD3_COMPLEVEL_6, - XD3_COMPLEVEL_9, -}; diff --git a/extern/xdelta3/xdelta3.vcxproj b/extern/xdelta3/xdelta3.vcxproj deleted file mode 100755 index 1bff06b..0000000 --- a/extern/xdelta3/xdelta3.vcxproj +++ /dev/null @@ -1,339 +0,0 @@ - - - - - Debug - Itanium - - - Debug - Win32 - - - Debug - x64 - - - Release - Itanium - - - Release - Win32 - - - Release - x64 - - - xdelta3-64 - Itanium - - - xdelta3-64 - Win32 - - - xdelta3-64 - x64 - - - - - %(PreprocessorDefinitions) - %(PreprocessorDefinitions) - %(PreprocessorDefinitions) - /DXD3_DEBUG=0 /DXD3_USE_LARGEFILE64=1 /DREGRESSION_TEST=1 /DSECONDARY_DJW=1 /DSECONDARY_FGK=1 /DXD3_MAIN=1 /DXD3_WIN32=1 /DEXTERNAL_COMPRESSION=0 /DXD3_STDIO=0 /DXD3_POSIX=0;%(PreprocessorDefinitions) - /DXD3_DEBUG=0 /DXD3_USE_LARGEFILE64=1 /DREGRESSION_TEST=1 /DSECONDARY_DJW=1 /DSECONDARY_FGK=1 /DXD3_MAIN=1 /DXD3_WIN32=1 /DEXTERNAL_COMPRESSION=0 /DXD3_STDIO=0 /DXD3_POSIX=0;%(PreprocessorDefinitions) - /DXD3_DEBUG=0 /DXD3_USE_LARGEFILE64=1 /DREGRESSION_TEST=1 /DSECONDARY_DJW=1 /DSECONDARY_FGK=1 /DXD3_MAIN=1 /DXD3_WIN32=1 /DEXTERNAL_COMPRESSION=0 /DXD3_STDIO=0 /DXD3_POSIX=0;%(PreprocessorDefinitions) - /DXD3_DEBUG=0 /DXD3_USE_LARGEFILE64=1 /DREGRESSION_TEST=1 /DSECONDARY_DJW=1 /DSECONDARY_FGK=1 /DXD3_MAIN=1 /DXD3_WIN32=1 /DEXTERNAL_COMPRESSION=0 /DXD3_STDIO=0 /DXD3_POSIX=0;%(PreprocessorDefinitions) - /DXD3_DEBUG=0 /DXD3_USE_LARGEFILE64=1 /DREGRESSION_TEST=1 /DSECONDARY_DJW=1 /DSECONDARY_FGK=1 /DXD3_MAIN=1 /DXD3_WIN32=1 /DEXTERNAL_COMPRESSION=0 /DXD3_STDIO=0 /DXD3_POSIX=0;%(PreprocessorDefinitions) - /DXD3_DEBUG=0 /DXD3_USE_LARGEFILE64=1 /DREGRESSION_TEST=1 /DSECONDARY_DJW=1 /DSECONDARY_FGK=1 /DXD3_MAIN=1 /DXD3_WIN32=1 /DEXTERNAL_COMPRESSION=0 /DXD3_STDIO=0 /DXD3_POSIX=0;%(PreprocessorDefinitions) - - - - - - - - - - - - - - - - - - - - {8F9D37B5-B78E-4816-BE61-AEF679DBF3BC} - Win32Proj - xdelta3 - - - - Application - true - MultiByte - - - Application - true - MultiByte - - - Application - true - MultiByte - - - Application - false - true - MultiByte - - - Application - false - true - MultiByte - - - Application - false - true - MultiByte - Windows7.1SDK - - - Application - false - true - MultiByte - - - Application - false - true - MultiByte - - - Application - false - true - MultiByte - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - true - - - true - - - true - - - false - - - false - - - false - $(WindowsSdkDir)\include;$(VCInstallDir)include;..\xz\include - $(LibraryPath);$(VSInstallDir);$(VSInstallDir)lib\amd64;..\xz\bin_x86-64 - - - false - - - false - - - false - - - - NotUsing - Level3 - Disabled - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;SECONDARY_LZMA=1;LZMA_API_STATIC;%(PreprocessorDefinitions) - MultiThreaded - ../xz/include - - - Console - true - kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;..\..\..\..\src\xz\bin_i486\liblzma_static.lib;%(AdditionalDependencies) - - - - - NotUsing - Level3 - Disabled - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) - MultiThreaded - - - Console - true - - - - - NotUsing - Level3 - Disabled - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) - MultiThreaded - - - Console - true - kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;..\..\..\..\src\xz\bin_x86-64\liblzma_static.lib;%(AdditionalDependencies) - - - - - Level3 - NotUsing - MaxSpeed - true - true - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;SECONDARY_LZMA=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;LZMA_API_STATIC;%(PreprocessorDefinitions) - MultiThreaded - ..\..\..\..\src\xz\include - - - Console - true - true - true - kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;..\..\..\..\src\xz\bin_i486\liblzma_static.lib;%(AdditionalDependencies) - - - - - Level3 - NotUsing - MaxSpeed - true - true - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) - MultiThreaded - - - Console - true - true - true - - - - - Level3 - NotUsing - MaxSpeed - true - true - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;SECONDARY_LZMA=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;LZMA_API_STATIC;%(PreprocessorDefinitions) - MultiThreaded - ..\..\..\..\src\xz\include - - - Console - true - true - true - kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies);..\..\..\..\src\xz\bin_x86-64\liblzma_static.lib - - - - - Level3 - NotUsing - MaxSpeed - true - true - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) - MultiThreaded - - - Console - true - true - true - - - - - Level3 - NotUsing - MaxSpeed - true - true - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) - MultiThreaded - - - Console - true - true - true - - - - - Level3 - NotUsing - MaxSpeed - true - true - WIN32;XD3_MAIN=1;XD3_DEBUG=0;XD3_USE_LARGEFILE64=1;REGRESSION_TEST=1;SECONDARY_DJW=1;SECONDARY_FGK=1;XD3_WIN32=1;EXTERNAL_COMPRESSION=0;SHELL_TESTS=0;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) - MultiThreaded - - - Console - true - true - true - - - - - - \ No newline at end of file diff --git a/extern/xdelta3/xdelta3.wxi b/extern/xdelta3/xdelta3.wxi deleted file mode 100644 index 2ef8426..0000000 --- a/extern/xdelta3/xdelta3.wxi +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/extern/xdelta3/xdelta3.wxs b/extern/xdelta3/xdelta3.wxs deleted file mode 100644 index 5e2d05c..0000000 --- a/extern/xdelta3/xdelta3.wxs +++ /dev/null @@ -1,131 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/meson.build b/meson.build index 36913f5..4982bc7 100644 --- a/meson.build +++ b/meson.build @@ -29,7 +29,6 @@ if meson.is_subproject() == false 'source/player.cpp', cpp_args : [ commonCompileArgs, '-DNCURSES' ], dependencies : [ quickerNESDependency, toolDependency, dependency('sdl2'), dependency('SDL2_image') ], - include_directories : include_directories(['source']), link_args : [ '-lncurses' ], sources : quickerNESPlayerSrc ) @@ -41,7 +40,6 @@ if meson.is_subproject() == false 'source/tester.cpp', cpp_args : [ commonCompileArgs, '-Werror' ], dependencies : [ quickerNESDependency, toolDependency ], - include_directories : include_directories(['../extern/json']) ) # Building tester tool for the original QuickNES @@ -50,7 +48,6 @@ if meson.is_subproject() == false 'source/tester.cpp', cpp_args : [ commonCompileArgs, '-w', '-DDISABLE_AUTO_FILE', '-D__LIBRETRO__', '-DNDEBUG', '-DBLARGG_NONPORTABLE' ], dependencies : [ quickNESDependency, toolDependency ], - include_directories : include_directories(['../extern/json']) ) # Building tests diff --git a/source/logger.hpp b/source/logger.hpp deleted file mode 100644 index 1ad1098..0000000 --- a/source/logger.hpp +++ /dev/null @@ -1,39 +0,0 @@ -#pragma once - -#include -#include -#include - -// If we use NCurses, we need to use the appropriate printing function -#ifndef LOG - #ifdef NCURSES - #include - #define LOG printw - #else - #define LOG printf - #endif -#endif - -#ifndef EXIT_WITH_ERROR - #define EXIT_WITH_ERROR(...) exitWithError(__FILE__, __LINE__, __VA_ARGS__) -#endif - -inline void exitWithError [[noreturn]] (const char *fileName, const int lineNumber, const char *format, ...) -{ - char *outstr = 0; - va_list ap; - va_start(ap, format); - int ret = vasprintf(&outstr, format, ap); - if (ret < 0) exit(-1); - - std::string outString = outstr; - free(outstr); - - char info[1024]; - - snprintf(info, sizeof(info) - 1, " + From %s:%d\n", fileName, lineNumber); - outString += info; - - throw std::runtime_error(outString.c_str()); -} - diff --git a/source/meson.build b/source/meson.build index e8dec14..5cb3e14 100644 --- a/source/meson.build +++ b/source/meson.build @@ -7,7 +7,7 @@ subdir('quickerNES') toolDependency = declare_dependency( include_directories : include_directories(['.', '../extern']), sources : [ - '../extern/metrohash128/metrohash128.cpp', - '../extern/xdelta3/xdelta3.c', + '../extern/jaffarCommon/extern/metrohash128/metrohash128.cpp', + '../extern/jaffarCommon/extern/xdelta3/xdelta3.c', ] ) diff --git a/source/nesInstanceBase.hpp b/source/nesInstanceBase.hpp index d46e4b8..9368576 100644 --- a/source/nesInstanceBase.hpp +++ b/source/nesInstanceBase.hpp @@ -1,6 +1,6 @@ #pragma once -#include "logger.hpp" +#include "jaffarCommon/include/logger.hpp" #include "controller.hpp" // Size of image generated in graphics buffer @@ -98,8 +98,24 @@ class NESInstanceBase virtual void deserializeState(const uint8_t *state) = 0; virtual size_t getStateSize() const = 0; - virtual void serializeDifferentialState(uint8_t *differentialData, size_t* differentialDataPos, const uint8_t* referenceData, size_t* referenceDataPos, const size_t maxSize, const bool useZlib) const = 0; - virtual void deserializeDifferentialState(const uint8_t *differentialData, size_t* differentialDataPos, const uint8_t* referenceData, size_t* referenceDataPos, const bool useZlib) = 0; + virtual void serializeDifferentialState( + uint8_t *outputData, + size_t* outputDataPos, + const size_t outputDataMaxSize, + const uint8_t* referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib) const = 0; + + virtual void deserializeDifferentialState( + const uint8_t *inputData, + size_t* inputDataPos, + const size_t inputDataMaxSize, + const uint8_t* referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib) = 0; + virtual size_t getDifferentialStateSize() const = 0; virtual void doSoftReset() = 0; diff --git a/source/playbackInstance.hpp b/source/playbackInstance.hpp index d0e5a67..fc9fe36 100644 --- a/source/playbackInstance.hpp +++ b/source/playbackInstance.hpp @@ -1,13 +1,13 @@ #pragma once -#include "nesInstance.hpp" +#include +#include #include #include #include #include -#include -#include -#include +#include +#include "nesInstance.hpp" #define _INVERSE_FRAME_RATE 16667 @@ -15,7 +15,7 @@ struct stepData_t { std::string input; uint8_t *stateData; - hash_t hash; + jaffarCommon::hash_t hash; }; class PlaybackInstance @@ -30,7 +30,7 @@ class PlaybackInstance step.input = input; step.stateData = (uint8_t *)malloc(_emu->getStateSize()); _emu->serializeState(step.stateData); - step.hash = calculateStateHash(_emu); + step.hash = jaffarCommon::calculateMetroHash(_emu->getLowMem(), _emu->getLowMemSize()); // Adding the step into the sequence _stepSequence.push_back(step); @@ -205,7 +205,7 @@ class PlaybackInstance return step.stateData; } - const hash_t getStateHash(const size_t stepId) const + const jaffarCommon::hash_t getStateHash(const size_t stepId) const { // Checking the required step id does not exceed contents of the sequence if (stepId > _stepSequence.size()) EXIT_WITH_ERROR("[Error] Attempting to render a step larger than the step sequence"); diff --git a/source/player.cpp b/source/player.cpp index 970edeb..666ee00 100644 --- a/source/player.cpp +++ b/source/player.cpp @@ -1,8 +1,10 @@ -#include "argparse/argparse.hpp" +#include +#include "jaffarCommon/extern/argparse/argparse.hpp" +#include "jaffarCommon/include/file.hpp" +#include "jaffarCommon/include/logger.hpp" +#include "jaffarCommon/include/string.hpp" #include "nesInstance.hpp" #include "playbackInstance.hpp" -#include "utils.hpp" -#include int main(int argc, char *argv[]) { @@ -72,14 +74,14 @@ int main(int argc, char *argv[]) // Loading sequence file std::string inputSequence; - auto status = loadStringFromFile(inputSequence, sequenceFilePath.c_str()); + auto status = jaffarCommon::loadStringFromFile(inputSequence, sequenceFilePath.c_str()); if (status == false) EXIT_WITH_ERROR("[ERROR] Could not find or read from sequence file: %s\n", sequenceFilePath.c_str()); // Building sequence information - const auto sequence = split(inputSequence, ' '); + const auto sequence = jaffarCommon::split(inputSequence, ' '); // Initializing terminal - initializeTerminal(); + jaffarCommon::initializeTerminal(); // Printing provided parameters printw("[] Rom File Path: '%s'\n", romFilePath.c_str()); @@ -88,7 +90,7 @@ int main(int argc, char *argv[]) printw("[] State File Path: '%s'\n", stateFilePath.empty() ? "" : stateFilePath.c_str()); printw("[] Generating Sequence...\n"); - refreshTerminal(); + jaffarCommon::refreshTerminal(); // Creating emulator instance NESInstance e; @@ -99,14 +101,14 @@ int main(int argc, char *argv[]) // Loading ROM File std::string romFileData; - if (loadStringFromFile(romFileData, romFilePath) == false) EXIT_WITH_ERROR("Could not rom file: %s\n", romFilePath.c_str()); + if (jaffarCommon::loadStringFromFile(romFileData, romFilePath) == false) EXIT_WITH_ERROR("Could not rom file: %s\n", romFilePath.c_str()); e.loadROM((uint8_t*)romFileData.data(), romFileData.size()); // If an initial state is provided, load it now if (stateFilePath != "") { std::string stateFileData; - if (loadStringFromFile(stateFileData, stateFilePath) == false) EXIT_WITH_ERROR("Could not initial state file: %s\n", stateFilePath.c_str()); + if (jaffarCommon::loadStringFromFile(stateFileData, stateFilePath) == false) EXIT_WITH_ERROR("Could not initial state file: %s\n", stateFilePath.c_str()); e.deserializeState((uint8_t*)stateFileData.data()); } @@ -144,7 +146,7 @@ int main(int argc, char *argv[]) // Printing data and commands if (showFrameInfo) { - clearTerminal(); + jaffarCommon::clearTerminal(); printw("[] ----------------------------------------------------------------\n"); printw("[] Current Step #: %lu / %lu\n", currentStep + 1, sequenceLength); @@ -154,14 +156,14 @@ int main(int argc, char *argv[]) // Only print commands if not in reproduce mode if (isReproduce == false) printw("[] Commands: n: -1 m: +1 | h: -10 | j: +10 | y: -100 | u: +100 | k: -1000 | i: +1000 | s: quicksave | p: play | q: quit\n"); - refreshTerminal(); + jaffarCommon::refreshTerminal(); } // Resetting show frame info flag showFrameInfo = true; // Get command - auto command = getKeyPress(); + auto command = jaffarCommon::getKeyPress(); // Advance/Rewind commands if (command == 'n') currentStep = currentStep - 1; @@ -186,7 +188,7 @@ int main(int argc, char *argv[]) std::string saveData; saveData.resize(stateSize); memcpy(saveData.data(), stateData, stateSize); - if (saveStringToFile(saveData, saveFileName.c_str()) == false) EXIT_WITH_ERROR("[ERROR] Could not save state file: %s\n", saveFileName.c_str()); + if (jaffarCommon::saveStringToFile(saveData, saveFileName.c_str()) == false) EXIT_WITH_ERROR("[ERROR] Could not save state file: %s\n", saveFileName.c_str()); printw("[] Saved state to %s\n", saveFileName.c_str()); // Do no show frame info again after this action @@ -201,5 +203,5 @@ int main(int argc, char *argv[]) } // Ending ncurses window - finalizeTerminal(); + jaffarCommon::finalizeTerminal(); } diff --git a/source/quickNES/nesInstance.hpp b/source/quickNES/nesInstance.hpp index 391ffec..0cd559a 100644 --- a/source/quickNES/nesInstance.hpp +++ b/source/quickNES/nesInstance.hpp @@ -50,11 +50,25 @@ class NESInstance final : public NESInstanceBase return w.size(); } - void serializeDifferentialState(uint8_t *differentialData, size_t* differentialDataPos, const uint8_t* referenceData, size_t* referenceDataPos, const size_t maxSize, const bool useZlib) const override - { serializeState(differentialData); } + void serializeDifferentialState( + uint8_t *outputData, + size_t* outputDataPos, + const size_t outputDataMaxSize, + const uint8_t* referenceData, + size_t* referenceDataPos, + const size_t maxSize, + const bool useZlib) const override + { serializeState(outputData); } - void deserializeDifferentialState(const uint8_t *differentialData, size_t* differentialDataPos, const uint8_t* referenceData, size_t* referenceDataPos, const bool useZlib) override - { deserializeState(differentialData); } + void deserializeDifferentialState( + const uint8_t *inputData, + size_t* inputDataPos, + const size_t inputDataMaxSize, + const uint8_t* referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib) override + { deserializeState(inputData); } size_t getDifferentialStateSize() const override { return getStateSize(); } diff --git a/source/quickerNES/core/core.hpp b/source/quickerNES/core/core.hpp index becfa5a..518f562 100644 --- a/source/quickerNES/core/core.hpp +++ b/source/quickerNES/core/core.hpp @@ -22,7 +22,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "ppu/ppu.hpp" #include #include -#include +#include namespace quickerNES { @@ -153,26 +153,6 @@ class Core : private Cpu reset(true, true); } - static inline void serializeContiguousData(const uint8_t* __restrict__ inputData, const size_t inputDataSize, uint8_t* __restrict__ outputData, size_t* outputDataPos, size_t* referenceDataPos) - { - // Only perform memcpy if the input block is not null - if (outputData != nullptr) memcpy(&outputData[*outputDataPos], inputData, inputDataSize); - - // Moving pointer positions - *outputDataPos += inputDataSize; - if (referenceDataPos != nullptr) *referenceDataPos += inputDataSize; - } - - static inline void deserializeContiguousData(uint8_t* __restrict__ outputData, const size_t outputDataSize, const uint8_t* __restrict__ inputData, size_t* inputDataPos, size_t* referenceDataPos) - { - // Only perform memcpy if the input block is not null - if (outputData != nullptr) memcpy(outputData, &inputData[*inputDataPos], outputDataSize); - - // Moving pointer positions - *inputDataPos += outputDataSize; - if (referenceDataPos != nullptr) *referenceDataPos += outputDataSize; - } - static inline void serializeBlockHead( uint8_t* __restrict__ outputData, size_t* outputDataPos, @@ -197,125 +177,21 @@ class Core : private Cpu if (referenceDataPos != nullptr) *referenceDataPos += 8; } - static inline void serializeDifferentialData( - const uint8_t* __restrict__ inputData, - const size_t inputDataSize, - uint8_t* __restrict__ outputData, - size_t* outputDataPos, - const uint8_t* __restrict__ referenceData = nullptr, - size_t* referenceDataPos = 0, - const size_t outputMaxSize = 0, - const bool useZlib = false - ) - { - // Only perform compression if input is not null - if (outputData != nullptr) - { - // Variable to store difference count - auto diffCount = (usize_t*)&outputData[*outputDataPos]; - - // Advancing position pointer to store the difference counter - *outputDataPos += sizeof(usize_t); - - // If we reached maximum output, stop here - if (*outputDataPos >= outputMaxSize) - { - fprintf(stderr, "[Error] Maximum output data position reached before differential encode (%lu)\n", outputMaxSize); - std::runtime_error("Error while serializing"); - } - - // Encoding differential - int ret = xd3_encode_memory( - inputData, - inputDataSize, - &referenceData[*referenceDataPos], - inputDataSize, - &outputData[*outputDataPos], - diffCount, - outputMaxSize - *outputDataPos, - useZlib ? 0 : XD3_NOCOMPRESS - ); - - // If an error happened, print it here - if (ret != 0) - { - fprintf(stderr, "[Error] unexpected error while encoding differential compression. Diff count: %u\n", *diffCount); - std::runtime_error("Error while serializing"); - } - - // Increasing output data position pointer - *outputDataPos += *diffCount; - - // If exceeded size, report it - if ((usize_t)*outputDataPos > outputMaxSize) - { - fprintf(stderr, "[Error] Differential compression size (%u) exceeded output maximum size (%lu).\n", *diffCount, outputMaxSize); - std::runtime_error("Error while serializing"); - } - } - - // Finally, increasing reference data position pointer - *referenceDataPos += inputDataSize; - } - - static inline void deserializeDifferentialData( - uint8_t* __restrict__ outputData, - const size_t outputDataSize, - const uint8_t* __restrict__ inputData, - size_t* inputDataPos, - const uint8_t* __restrict__ referenceData = nullptr, - size_t* referenceDataPos = 0, - const bool useZlib = false - ) - { - // Reading differential count - usize_t diffCount; - memcpy(&diffCount, &inputData[*inputDataPos], sizeof(usize_t)); - - // Advancing position pointer to store the difference counter - *inputDataPos += sizeof(usize_t); - - // Encoding differential - usize_t output_size; - int ret = xd3_decode_memory( - &inputData[*inputDataPos], - diffCount, - &referenceData[*referenceDataPos], - outputDataSize, - outputData, - &output_size, - outputDataSize, - useZlib ? 0 : XD3_NOCOMPRESS - ); - - // If an error happened, print it here - if (ret != 0) - { - fprintf(stderr, "[Error] unexpected error while decoding differential compression. Diff count: %u\n", diffCount); - std::runtime_error("Error while deserializing"); - } - - // Increasing output data position pointer - *inputDataPos += diffCount; - - // Finally, increasing reference data position pointer - *referenceDataPos += outputDataSize; - } - inline void serializeState( uint8_t* __restrict__ outputData, - size_t* outputDataPos = nullptr, + size_t* outputDataPos, + const size_t outputDataMaxSize, const uint8_t* __restrict__ referenceData = nullptr, size_t* referenceDataPos = nullptr, - const size_t outputMaxSize = 0, + const size_t referenceDataMaxSize = 0, const bool useZlib = false) const { size_t tmpIOutputDataPos = 0; if (outputDataPos == nullptr) outputDataPos = &tmpIOutputDataPos; // NESS Block - if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "NESS", 0xFFFFFFFF, referenceDataPos); + if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "NESS", 0xFFFFFFFF, referenceDataPos); // TIME Block if (TIMEBlockEnabled == true) @@ -326,8 +202,8 @@ class Core : private Cpu const auto inputDataSize = sizeof(nes_state_t); const auto inputData = (uint8_t *)&state; - if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "TIME", inputDataSize, referenceDataPos); - serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); + if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "TIME", inputDataSize, referenceDataPos); + jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // CPUR Block @@ -346,7 +222,7 @@ class Core : private Cpu const auto inputData = (uint8_t *)&s; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "CPUR", inputDataSize, referenceDataPos); - serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); + jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); } if (PPURBlockEnabled == true) @@ -355,7 +231,7 @@ class Core : private Cpu const auto inputData = (const uint8_t *)&ppu; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "PPUR", inputDataSize, referenceDataPos); - serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); + jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // APUR Block @@ -368,7 +244,7 @@ class Core : private Cpu const auto inputData = (uint8_t *)&apuState; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "APUR", inputDataSize, referenceDataPos); - serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); + jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // CTRL Block @@ -378,7 +254,7 @@ class Core : private Cpu const auto inputData = (uint8_t *)&joypad; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "CTRL", inputDataSize, referenceDataPos); - serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); + jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // MAPR Block @@ -388,7 +264,7 @@ class Core : private Cpu const auto inputData = (uint8_t *)mapper->state; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "MAPR", inputDataSize, referenceDataPos); - serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); + jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // LRAM Block @@ -398,8 +274,8 @@ class Core : private Cpu const auto inputData = (uint8_t *)low_mem; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "LRAM", inputDataSize, referenceDataPos); - if (referenceDataPos == nullptr) serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, referenceData, referenceDataPos, outputMaxSize, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize,useZlib); } // SPRT Block @@ -409,8 +285,8 @@ class Core : private Cpu const auto inputData = (uint8_t *)ppu.spr_ram; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "SPRT", inputDataSize, referenceDataPos); - if (referenceDataPos == nullptr) serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, referenceData, referenceDataPos, outputMaxSize, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize,useZlib); } // NTAB Block @@ -423,8 +299,8 @@ class Core : private Cpu const auto inputData = (uint8_t *)ppu.impl->nt_ram; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "NTAB", inputDataSize, referenceDataPos); - if (referenceDataPos == nullptr) serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, referenceData, referenceDataPos, outputMaxSize, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize,useZlib); } // CHRR Block @@ -436,8 +312,8 @@ class Core : private Cpu const auto inputData = (uint8_t *)ppu.impl->chr_ram; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "CHRR", inputDataSize, referenceDataPos); - if (referenceDataPos == nullptr) serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, referenceData, referenceDataPos, outputMaxSize, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize,useZlib); } } @@ -450,8 +326,8 @@ class Core : private Cpu const auto inputData = (uint8_t *)impl->sram; if (HEADBlockEnabled == true) serializeBlockHead(outputData, outputDataPos, "SRAM", inputDataSize, referenceDataPos); - if (referenceDataPos == nullptr) serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, referenceData, referenceDataPos, outputMaxSize, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::serializeContiguousData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::serializeDifferentialData(inputData, inputDataSize, outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize,useZlib); } } @@ -461,9 +337,11 @@ class Core : private Cpu inline void deserializeState( const uint8_t* __restrict__ inputData, - size_t* inputDataPos = nullptr, + size_t* inputDataPos, + const size_t inputDataMaxSize, const uint8_t* __restrict__ referenceData = nullptr, size_t* referenceDataPos = nullptr, + const size_t referenceDataMaxSize = 0, const bool useZlib = false) { disable_rendering(); @@ -485,7 +363,7 @@ class Core : private Cpu const auto inputDataSize = sizeof(nes_state_t); if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); + jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); nes = nesState; nes.timestamp /= 5; @@ -500,7 +378,7 @@ class Core : private Cpu const auto inputDataSize = sizeof(cpu_state_t); if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); + jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); r.pc = s.pc; r.sp = s.s; @@ -517,7 +395,7 @@ class Core : private Cpu const auto inputDataSize = sizeof(ppu_state_t); if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); + jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // APUR Block @@ -529,7 +407,7 @@ class Core : private Cpu const auto inputDataSize = sizeof(Apu::apu_state_t); if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); + jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); impl->apu.load_state(apuState); impl->apu.end_frame(-(int)nes.timestamp / ppu_overclock); @@ -542,7 +420,7 @@ class Core : private Cpu const auto inputDataSize = sizeof(joypad_state_t); if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); + jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); } // MAPR Block @@ -554,7 +432,7 @@ class Core : private Cpu const auto inputDataSize = mapper->state_size; if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); + jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); mapper->apply_mapping(); } @@ -566,8 +444,8 @@ class Core : private Cpu const auto inputDataSize = low_ram_size; if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - if (referenceDataPos == nullptr) deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, referenceData, referenceDataPos, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } // SPRT Block @@ -577,8 +455,8 @@ class Core : private Cpu const auto inputDataSize = Ppu::spr_ram_size; if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - if (referenceDataPos == nullptr) deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, referenceData, referenceDataPos, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } // NTAB Block @@ -591,8 +469,8 @@ class Core : private Cpu const auto inputDataSize = nametable_size; if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - if (referenceDataPos == nullptr) deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, referenceData, referenceDataPos, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } // CHRR Block @@ -604,8 +482,8 @@ class Core : private Cpu const auto inputDataSize = ppu.chr_size; if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - if (referenceDataPos == nullptr) deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, referenceData, referenceDataPos, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); ppu.all_tiles_modified(); } @@ -620,8 +498,8 @@ class Core : private Cpu const auto inputDataSize = impl->sram_size; if (HEADBlockEnabled == true) deserializeBlockHead(inputDataPos, referenceDataPos); - if (referenceDataPos == nullptr) deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, referenceDataPos); - if (referenceDataPos != nullptr) deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, referenceData, referenceDataPos, useZlib); + if (referenceDataPos == nullptr) jaffarCommon::deserializeContiguousData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceDataPos, referenceDataMaxSize); + if (referenceDataPos != nullptr) jaffarCommon::deserializeDifferentialData(outputData, inputDataSize, inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } } diff --git a/source/quickerNES/core/emu.hpp b/source/quickerNES/core/emu.hpp index 8a12231..6dd59b7 100644 --- a/source/quickerNES/core/emu.hpp +++ b/source/quickerNES/core/emu.hpp @@ -4,6 +4,7 @@ // Emu 0.7.0 +#include #include "cart.hpp" #include "core.hpp" #include "apu/multiBuffer.hpp" @@ -45,25 +46,44 @@ class Emu const uint8_t *getHostPixels() const { return emu.ppu.host_pixels; } // Save emulator state variants - void serializeState(uint8_t *buffer) const { emu.serializeState(buffer); } - void deserializeState(const uint8_t *buffer) { emu.deserializeState(buffer); } - size_t getStateSize() const { size_t outputDataPos = 0; emu.serializeState(nullptr, &outputDataPos); return outputDataPos; } + void serializeState(uint8_t *buffer) const { emu.serializeState(buffer, nullptr, std::numeric_limits::max()); } + void deserializeState(const uint8_t *buffer) { emu.deserializeState(buffer, nullptr, std::numeric_limits::max()); } + size_t getStateSize() const { size_t outputDataPos = 0; emu.serializeState(nullptr, &outputDataPos, std::numeric_limits::max()); return outputDataPos; } - void serializeDifferentialState(uint8_t* __restrict__ outputData, size_t* outputDataPos, const uint8_t* __restrict__ referenceData, size_t* referenceDataPos, const size_t outputMaxSize, const bool useZlib) const + void serializeDifferentialState( + uint8_t* __restrict__ outputData, + size_t* outputDataPos, + const size_t outputDataMaxSize, + const uint8_t* __restrict__ referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib) const { - emu.serializeState(outputData, outputDataPos, referenceData, referenceDataPos, outputMaxSize, useZlib); + emu.serializeState(outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } - void deserializeDifferentialState(const uint8_t* __restrict__ inputData, size_t* inputDataPos, const uint8_t* __restrict__ referenceData, size_t* referenceDataPos, const bool useZlib) + void deserializeDifferentialState( + const uint8_t* __restrict__ inputData, + size_t* inputDataPos, + const size_t inputDataMaxSize, + const uint8_t* __restrict__ referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib) { - emu.deserializeState(inputData, inputDataPos, referenceData, referenceDataPos, useZlib); + emu.deserializeState(inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } size_t getDifferentialStateSize() const { + uint8_t* outputDataPtr = nullptr; size_t outputDataPos = 0; + uint8_t* referenceDataPtr = nullptr; size_t referenceDataPos = 0; - emu.serializeState(nullptr, &outputDataPos, nullptr, &referenceDataPos, 0, false); + uint32_t outputDataMaxSize = std::numeric_limits::max(); + uint32_t referenceDataMaxSize = std::numeric_limits::max(); + + emu.serializeState(outputDataPtr, &outputDataPos, outputDataMaxSize, referenceDataPtr, &referenceDataPos, referenceDataMaxSize, false); return outputDataPos; } diff --git a/source/quickerNES/nesInstance.hpp b/source/quickerNES/nesInstance.hpp index 2b4e887..d36f18f 100644 --- a/source/quickerNES/nesInstance.hpp +++ b/source/quickerNES/nesInstance.hpp @@ -28,11 +28,26 @@ class NESInstance final : public NESInstanceBase void deserializeState(const uint8_t *state) override { _nes.deserializeState(state); } size_t getStateSize() const override { return _nes.getStateSize(); } - void serializeDifferentialState(uint8_t *differentialData, size_t* differentialDataPos, const uint8_t* referenceData, size_t* referenceDataPos, const size_t maxSize, const bool useZlib) const override - { _nes.serializeDifferentialState(differentialData, differentialDataPos, referenceData, referenceDataPos, maxSize, useZlib); } + void serializeDifferentialState( + uint8_t *outputData, + size_t* outputDataPos, + const size_t outputDataMaxSize, + const uint8_t* referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib) const override + { _nes.serializeDifferentialState(outputData, outputDataPos, outputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } - void deserializeDifferentialState(const uint8_t *differentialData, size_t* differentialDataPos, const uint8_t* referenceData, size_t* referenceDataPos, const bool useZlib) override - { _nes.deserializeDifferentialState(differentialData, differentialDataPos, referenceData, referenceDataPos, useZlib); } + void deserializeDifferentialState( + const uint8_t *inputData, + size_t* inputDataPos, + const size_t inputDataMaxSize, + const uint8_t* referenceData, + size_t* referenceDataPos, + const size_t referenceDataMaxSize, + const bool useZlib + ) override + { _nes.deserializeDifferentialState(inputData, inputDataPos, inputDataMaxSize, referenceData, referenceDataPos, referenceDataMaxSize, useZlib); } size_t getDifferentialStateSize() const override { return _nes.getDifferentialStateSize(); } diff --git a/source/tester.cpp b/source/tester.cpp index 4d59222..53938d1 100644 --- a/source/tester.cpp +++ b/source/tester.cpp @@ -1,7 +1,8 @@ -#include "argparse/argparse.hpp" -#include "nlohmann/json.hpp" -#include "sha1/sha1.hpp" -#include "utils.hpp" +#include +#include +#include +#include +#include #include "nesInstance.hpp" #include #include @@ -46,7 +47,7 @@ int main(int argc, char *argv[]) // Loading script file std::string scriptJsonRaw; - if (loadStringFromFile(scriptJsonRaw, scriptFilePath) == false) EXIT_WITH_ERROR("Could not find/read script file: %s\n", scriptFilePath.c_str()); + if (jaffarCommon::loadStringFromFile(scriptJsonRaw, scriptFilePath) == false) EXIT_WITH_ERROR("Could not find/read script file: %s\n", scriptFilePath.c_str()); // Parsing script const auto scriptJson = nlohmann::json::parse(scriptJsonRaw); @@ -119,7 +120,7 @@ int main(int argc, char *argv[]) // Loading ROM File std::string romFileData; - if (loadStringFromFile(romFileData, romFilePath) == false) EXIT_WITH_ERROR("Could not rom file: %s\n", romFilePath.c_str()); + if (jaffarCommon::loadStringFromFile(romFileData, romFilePath) == false) EXIT_WITH_ERROR("Could not rom file: %s\n", romFilePath.c_str()); e.loadROM((uint8_t*)romFileData.data(), romFileData.size()); // Calculating ROM SHA1 @@ -129,7 +130,7 @@ int main(int argc, char *argv[]) if (initialStateFilePath != "") { std::string stateFileData; - if (loadStringFromFile(stateFileData, initialStateFilePath) == false) EXIT_WITH_ERROR("Could not initial state file: %s\n", initialStateFilePath.c_str()); + if (jaffarCommon::loadStringFromFile(stateFileData, initialStateFilePath) == false) EXIT_WITH_ERROR("Could not initial state file: %s\n", initialStateFilePath.c_str()); e.deserializeState((uint8_t*)stateFileData.data()); } @@ -151,10 +152,10 @@ int main(int argc, char *argv[]) // Loading sequence file std::string sequenceRaw; - if (loadStringFromFile(sequenceRaw, sequenceFilePath) == false) EXIT_WITH_ERROR("[ERROR] Could not find or read from input sequence file: %s\n", sequenceFilePath.c_str()); + if (jaffarCommon::loadStringFromFile(sequenceRaw, sequenceFilePath) == false) EXIT_WITH_ERROR("[ERROR] Could not find or read from input sequence file: %s\n", sequenceFilePath.c_str()); // Building sequence information - const auto sequence = split(sequenceRaw, ' '); + const auto sequence = jaffarCommon::split(sequenceRaw, ' '); // Getting sequence lenght const auto sequenceLength = sequence.size(); @@ -172,7 +173,7 @@ int main(int argc, char *argv[]) printf("[] ROM Hash: 'SHA1: %s'\n", romSHA1.c_str()); printf("[] Sequence File: '%s'\n", sequenceFilePath.c_str()); printf("[] Sequence Length: %lu\n", sequenceLength); - printf("[] State Size: %lu bytes - Disabled Blocks: [ %s ]\n", e.getStateSize(), stateDisabledBlocksOutput.c_str()); + printf("[] State Size: %lu bytes - Disabled Blocks: [ %s ]\n", stateSize, stateDisabledBlocksOutput.c_str()); printf("[] Use Differential Compression: %s\n", differentialCompressionEnabled ? "true" : "false"); if (differentialCompressionEnabled == true) { @@ -197,7 +198,7 @@ int main(int argc, char *argv[]) differentialStateData = (uint8_t *)malloc(fullDifferentialStateSize); size_t differentialDataPos = 0; size_t referenceDataPos = 0; - e.serializeDifferentialState(differentialStateData, &differentialDataPos, currentState, &referenceDataPos, fullDifferentialStateSize, differentialCompressionUseZlib); + e.serializeDifferentialState(differentialStateData, &differentialDataPos, fullDifferentialStateSize, currentState, &referenceDataPos, stateSize, differentialCompressionUseZlib); differentialStateMaxSizeDetected = differentialDataPos; } @@ -218,7 +219,7 @@ int main(int argc, char *argv[]) { size_t differentialDataPos = 0; size_t referenceDataPos = 0; - e.deserializeDifferentialState(differentialStateData, &differentialDataPos, currentState, &referenceDataPos, differentialCompressionUseZlib); + e.deserializeDifferentialState(differentialStateData, &differentialDataPos, fullDifferentialStateSize, currentState, &referenceDataPos, stateSize, differentialCompressionUseZlib); } if (differentialCompressionEnabled == false) e.deserializeState(currentState); @@ -232,7 +233,7 @@ int main(int argc, char *argv[]) { size_t differentialDataPos = 0; size_t referenceDataPos = 0; - e.serializeDifferentialState(differentialStateData, &differentialDataPos, currentState, &referenceDataPos, fullDifferentialStateSize, differentialCompressionUseZlib); + e.serializeDifferentialState(differentialStateData, &differentialDataPos, fullDifferentialStateSize, currentState, &referenceDataPos, stateSize, differentialCompressionUseZlib); differentialStateMaxSizeDetected = std::max(differentialStateMaxSizeDetected, differentialDataPos); } @@ -246,7 +247,7 @@ int main(int argc, char *argv[]) double elapsedTimeSeconds = (double)dt * 1.0e-9; // Calculating final state hash - auto result = calculateStateHash(&e); + auto result = jaffarCommon::calculateMetroHash(e.getLowMem(), e.getLowMemSize()); // Creating hash string char hashStringBuffer[256]; @@ -261,7 +262,7 @@ int main(int argc, char *argv[]) printf("[] Differential State Max Size Detected: %lu\n", differentialStateMaxSizeDetected); } // If saving hash, do it now - if (hashOutputFile != "") saveStringToFile(std::string(hashStringBuffer), hashOutputFile.c_str()); + if (hashOutputFile != "") jaffarCommon::saveStringToFile(std::string(hashStringBuffer), hashOutputFile.c_str()); // If reached this point, everything ran ok return 0; diff --git a/source/utils.hpp b/source/utils.hpp deleted file mode 100644 index 97903ad..0000000 --- a/source/utils.hpp +++ /dev/null @@ -1,173 +0,0 @@ -#pragma once - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "nesInstance.hpp" - -// If we use NCurses, define the following useful functions -#ifdef NCURSES - -#include - -// Function to check for keypress taken from https://github.com/ajpaulson/learning-ncurses/blob/master/kbhit.c -inline int kbhit() -{ - int ch, r; - - // turn off getch() blocking and echo - nodelay(stdscr, TRUE); - noecho(); - - // check for input - ch = getch(); - if (ch == ERR) // no input - r = FALSE; - else // input - { - r = TRUE; - ungetch(ch); - } - - // restore block and echo - echo(); - nodelay(stdscr, FALSE); - - return (r); -} - -inline int getKeyPress() -{ - while (!kbhit()) - { - usleep(100000ul); - refresh(); - } - return getch(); -} - -inline void initializeTerminal() -{ - // Initializing ncurses screen - initscr(); - cbreak(); - noecho(); - nodelay(stdscr, TRUE); - scrollok(stdscr, TRUE); -} - -inline void clearTerminal() -{ - clear(); -} - -inline void finalizeTerminal() -{ - endwin(); -} - -inline void refreshTerminal() -{ - refresh(); -} - -#endif // NCURSES - -// Function to split a string into a sub-strings delimited by a character -// Taken from stack overflow answer to https://stackoverflow.com/questions/236129/how-do-i-iterate-over-the-words-of-a-string -// By Evan Teran - -template -inline void split(const std::string &s, char delim, Out result) -{ - std::istringstream iss(s); - std::string item; - while (std::getline(iss, item, delim)) - { - *result++ = item; - } -} - -inline std::vector split(const std::string &s, char delim) -{ - std::string newString = s; - std::replace(newString.begin(), newString.end(), '\n', ' '); - std::vector elems; - split(newString, delim, std::back_inserter(elems)); - return elems; -} - -// Taken from https://stackoverflow.com/questions/116038/how-do-i-read-an-entire-file-into-a-stdstring-in-c/116220#116220 -inline std::string slurp(std::ifstream &in) -{ - std::ostringstream sstr; - sstr << in.rdbuf(); - return sstr.str(); -} - -// Loads a string from a given file -inline bool loadStringFromFile(std::string &dst, const std::string path) -{ - std::ifstream fi(path); - - // If file not found or open, return false - if (fi.good() == false) return false; - - // Reading entire file - dst = slurp(fi); - - // Closing file - fi.close(); - - return true; -} - -// Save string to a file -inline bool saveStringToFile(const std::string &src, const char *fileName) -{ - FILE *fid = fopen(fileName, "w"); - if (fid != NULL) - { - fwrite(src.c_str(), 1, src.size(), fid); - fclose(fid); - return true; - } - return false; -} - -// Function to split a vector into n mostly fair chunks -template -inline std::vector splitVector(const T size, const T n) -{ - std::vector subSizes(n); - - T length = size / n; - T remain = size % n; - - for (T i = 0; i < n; i++) - subSizes[i] = i < remain ? length + 1 : length; - - return subSizes; -} - -typedef _uint128_t hash_t; - -inline hash_t calculateMetroHash(uint8_t *data, size_t size) -{ - MetroHash128 hash; - hash.Update(data, size); - hash_t result; - hash.Finalize(reinterpret_cast(&result)); - return result; -} - -inline hash_t calculateStateHash(NESInstance* nes) -{ - return calculateMetroHash(nes->getLowMem(), nes->getLowMemSize()); -} \ No newline at end of file