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114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
// Copyright 2019 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "Common/DynamicLibrary.h"
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#include <cstring>
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#include <fmt/format.h>
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#include "Common/Assert.h"
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#ifdef _WIN32
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#include <Windows.h>
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#else
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#include <dlfcn.h>
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#endif
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namespace Common
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{
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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(void* handle)
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{
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m_handle = handle;
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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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DynamicLibrary& DynamicLibrary::operator=(void* handle)
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{
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m_handle = handle;
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return *this;
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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*>(LoadLibraryA(filename));
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#else
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m_handle = dlopen(filename, RTLD_NOW);
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#endif
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return m_handle != nullptr;
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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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} // namespace Common
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