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Log: Enable virtual terminal processing on Win32 

This way we don't need to set the registry value.
This commit is contained in:
Connor McLaughlin 2021-01-09 00:32:44 +10:00
parent b0398f5aa7
commit 9951921a6d
1 changed files with 75 additions and 43 deletions
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72
src/common/log.cpp
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@ -158,7 +158,8 @@ static void StandardOutputLogCallback(void* pUserParam, const char* channelName,
"\033[0;34m", // TRACE
};
if (int outputFd = (level <= LOGLEVEL_WARNING) ? STDERR_FILENO : STDOUT_FILENO; outputFd >= 0) {
if (int outputFd = (level <= LOGLEVEL_WARNING) ? STDERR_FILENO : STDOUT_FILENO; outputFd >= 0)
{
write(outputFd, colorCodes[level], std::strlen(colorCodes[level]));
Log::FormatLogMessageForDisplay(
@ -171,7 +172,6 @@ static void StandardOutputLogCallback(void* pUserParam, const char* channelName,
}
}
#if defined(_WIN32)
static bool s_msw_console_allocated = false;
static HANDLE s_msw_prev_stdin = {};
@ -180,7 +180,7 @@ static HANDLE s_msw_prev_stderr = {};
#include <fcntl.h>
void msw_ReopenStandardPipes()
static void msw_ReopenStandardPipes()
{
if (s_msw_console_allocated)
return;
@ -195,9 +195,18 @@ void msw_ReopenStandardPipes()
// open outputs as binary to suppress Windows newline corruption (\r mess)
std::FILE* fp;
if (!s_msw_prev_stdin ) { freopen_s(&fp, "CONIN$", "r" , stdin ); }
if (!s_msw_prev_stdout ) { freopen_s(&fp, "CONOUT$", "wb", stdout); }
if (!s_msw_prev_stderr ) { freopen_s(&fp, "CONOUT$", "wb", stderr); }
if (!s_msw_prev_stdin)
{
freopen_s(&fp, "CONIN$", "r", stdin);
}
if (!s_msw_prev_stdout)
{
freopen_s(&fp, "CONOUT$", "wb", stdout);
}
if (!s_msw_prev_stderr)
{
freopen_s(&fp, "CONOUT$", "wb", stderr);
}
// Windows Console Oddities - The only way to get windows built-in console is to render UTF chars from
// the correct alt. fonts is to set either _O_U8TEXT or _O_U16TEXT. However, this imposes a requirement
@ -213,7 +222,7 @@ void msw_ReopenStandardPipes()
//_setmode(_fileno(stderr), _O_U8TEXT);
}
void msw_FreeLegacyConsole()
static void msw_FreeLegacyConsole()
{
if (!s_msw_console_allocated)
return;
@ -228,20 +237,38 @@ void msw_FreeLegacyConsole()
::FreeConsole();
}
bool msw_AttachLegacyConsole()
static bool msw_AttachLegacyConsole()
{
if (::AttachConsole(ATTACH_PARENT_PROCESS))
return true;
// ERROR_ACCESS_DENIED means a windows Console is already attached.
if (auto err = ::GetLastError(); err == ERROR_ACCESS_DENIED) {
if (auto err = ::GetLastError(); err == ERROR_ACCESS_DENIED)
{
return true;
}
return false;
}
static bool msw_EnableVirtualTerminalProcessing()
{
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
if (!hConsole)
return false;
DWORD old_mode;
if (!GetConsoleMode(hConsole, &old_mode))
return false;
// already enabled?
if (old_mode & ENABLE_VIRTUAL_TERMINAL_PROCESSING)
return true;
return SetConsoleMode(hConsole, old_mode | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
}
// Creates an old-fashioned console window.
bool msw_AllocLegacyConsole()
static bool msw_AllocLegacyConsole()
{
// A potentially fancy solution which I haven't had time to experiment with yet is to spawn our own
// terminal application and bind our standard pipes to it, instead of using AllocConsole(). This would
@ -249,13 +276,15 @@ bool msw_AllocLegacyConsole()
// than the windows legacy console (but would also depend on the user having them installed and PATH
// accessible, so definitely not without annoying caveats) --jstine
if (!::AllocConsole()) {
if (!::AllocConsole())
{
// Console could fail to allocate on an Appveyor/Jenkins environment, for example, because
// when being run as a service the console may be unable to bind itself to a user login session.
// It may also fail if a console is already allocated <-- this is a problem since in this case
// we still want to set
if (auto err = ::GetLastError(); err == ERROR_ACCESS_DENIED) {
if (auto err = ::GetLastError(); err == ERROR_ACCESS_DENIED)
{
// ERROR_ACCESS_DENIED means a windows Console is already attached.
// whatever the console is, who knows, so let's early-out, and not mess with its font settings.
return true;
@ -265,8 +294,8 @@ bool msw_AllocLegacyConsole()
return true;
}
static void msw_DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName, LOGLEVEL level,
const char* message)
static void msw_DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName,
LOGLEVEL level, const char* message)
{
FormatLogMessageForDisplay(
channelName, functionName, level, message, [](const char* text, void*) { OutputDebugStringA(text); }, nullptr);
@ -276,8 +305,8 @@ static void msw_DebugOutputLogCallback(void* pUserParam, const char* channelName
#endif
#if defined(__ANDROID__)
static void android_DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName, LOGLEVEL level,
const char* message)
static void android_DebugOutputLogCallback(void* pUserParam, const char* channelName, const char* functionName,
LOGLEVEL level, const char* message)
{
static const int logPriority[LOGLEVEL_COUNT] = {
ANDROID_LOG_INFO, // NONE
@ -311,7 +340,6 @@ static void DebugOutputLogCallback(void* pUserParam, const char* channelName, co
#endif
}
void SetConsoleOutputParams(bool Enabled, const char* ChannelFilter, LOGLEVEL LevelFilter)
{
s_consoleOutputChannelFilter = (ChannelFilter != NULL) ? ChannelFilter : "";
@ -328,7 +356,8 @@ void SetConsoleOutputParams(bool Enabled, const char* ChannelFilter, LOGLEVEL Le
UnregisterCallback(StandardOutputLogCallback, NULL);
#if defined(_WIN32) && !defined(_CONSOLE)
if (Enabled) {
if (Enabled)
{
// Windows Console behavior is very tricky, and depends on:
// - Whether the application is built with defined(_CONSOLE) or not.
// - Whether the application is started via a Microsoft shell (Cmd.exe) or a Unix'y shell
@ -360,8 +389,11 @@ void SetConsoleOutputParams(bool Enabled, const char* ChannelFilter, LOGLEVEL Le
s_msw_prev_stdout = ::GetStdHandle(STD_OUTPUT_HANDLE);
s_msw_prev_stderr = ::GetStdHandle(STD_ERROR_HANDLE);
if (!s_msw_prev_stdout || !s_msw_prev_stdin) {
if (msw_AttachLegacyConsole() || msw_AllocLegacyConsole()) {
if (!s_msw_prev_stdout || !s_msw_prev_stdin)
{
if (msw_AttachLegacyConsole() || msw_AllocLegacyConsole())
{
msw_EnableVirtualTerminalProcessing();
msw_ReopenStandardPipes();
}
}