mirror of https://github.com/PCSX2/pcsx2.git
144 lines
3.6 KiB
C++
144 lines
3.6 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2022 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common/PrecompiledHeader.h"
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#include "common/DynamicLibrary.h"
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#include "common/Assertions.h"
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#include "common/Console.h"
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#include "common/StringUtil.h"
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#include <cstring>
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#include "fmt/format.h"
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#ifdef _WIN32
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#include "common/RedtapeWindows.h"
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#else
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#include <dlfcn.h>
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#endif
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using namespace Common;
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DynamicLibrary::DynamicLibrary() = default;
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DynamicLibrary::DynamicLibrary(const char* filename)
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{
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Open(filename);
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}
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DynamicLibrary::DynamicLibrary(DynamicLibrary&& move)
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: m_handle(move.m_handle)
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{
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move.m_handle = nullptr;
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}
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DynamicLibrary::~DynamicLibrary()
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{
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Close();
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}
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std::string DynamicLibrary::GetUnprefixedFilename(const char* filename)
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{
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#if defined(_WIN32)
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return std::string(filename) + ".dll";
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#elif defined(__APPLE__)
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return std::string(filename) + ".dylib";
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#else
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return std::string(filename) + ".so";
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#endif
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}
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std::string DynamicLibrary::GetVersionedFilename(const char* libname, int major, int minor)
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{
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#if defined(_WIN32)
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if (major >= 0 && minor >= 0)
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return fmt::format("{}-{}-{}.dll", libname, major, minor);
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else if (major >= 0)
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return fmt::format("{}-{}.dll", libname, major);
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else
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return fmt::format("{}.dll", libname);
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#elif defined(__APPLE__)
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const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
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if (major >= 0 && minor >= 0)
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return fmt::format("{}{}.{}.{}.dylib", prefix, libname, major, minor);
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else if (major >= 0)
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return fmt::format("{}{}.{}.dylib", prefix, libname, major);
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else
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return fmt::format("{}{}.dylib", prefix, libname);
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#else
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const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
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if (major >= 0 && minor >= 0)
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return fmt::format("{}{}.so.{}.{}", prefix, libname, major, minor);
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else if (major >= 0)
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return fmt::format("{}{}.so.{}", prefix, libname, major);
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else
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return fmt::format("{}{}.so", prefix, libname);
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#endif
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}
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bool DynamicLibrary::Open(const char* filename)
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{
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#ifdef _WIN32
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m_handle = reinterpret_cast<void*>(LoadLibraryW(StringUtil::UTF8StringToWideString(filename).c_str()));
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if (!m_handle)
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{
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Console.Error(fmt::format("(DynamicLibrary) Loading {} failed: {}", filename, GetLastError()));
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return false;
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}
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return true;
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#else
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m_handle = dlopen(filename, RTLD_NOW);
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if (!m_handle)
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{
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const char* err = dlerror();
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Console.Error(fmt::format("(DynamicLibrary) Loading {} failed: {}", filename, err ? err : ""));
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return false;
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}
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return true;
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#endif
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}
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void DynamicLibrary::Close()
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{
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if (!IsOpen())
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return;
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#ifdef _WIN32
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FreeLibrary(reinterpret_cast<HMODULE>(m_handle));
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#else
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dlclose(m_handle);
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#endif
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m_handle = nullptr;
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}
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void* DynamicLibrary::GetSymbolAddress(const char* name) const
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{
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#ifdef _WIN32
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return reinterpret_cast<void*>(GetProcAddress(reinterpret_cast<HMODULE>(m_handle), name));
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#else
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return reinterpret_cast<void*>(dlsym(m_handle, name));
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#endif
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}
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DynamicLibrary& DynamicLibrary::operator=(DynamicLibrary&& move)
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{
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Close();
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m_handle = move.m_handle;
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move.m_handle = nullptr;
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return *this;
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}
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