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// Copyright 2019 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <string>
#include <utility>
#include <fmt/format.h>
#include "common/dynamic_library.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <dlfcn.h>
#endif
namespace Common {
DynamicLibrary::DynamicLibrary() = default;
DynamicLibrary::DynamicLibrary(const char* filename) {
void(Open(filename));
}
DynamicLibrary::DynamicLibrary(DynamicLibrary&& rhs) noexcept
: handle{std::exchange(rhs.handle, nullptr)} {}
DynamicLibrary& DynamicLibrary::operator=(DynamicLibrary&& rhs) noexcept {
Close();
handle = std::exchange(rhs.handle, nullptr);
return *this;
}
DynamicLibrary::~DynamicLibrary() {
Close();
}
std::string DynamicLibrary::GetUnprefixedFilename(const char* filename) {
#if defined(_WIN32)
return std::string(filename) + ".dll";
#elif defined(__APPLE__)
return std::string(filename) + ".dylib";
#else
return std::string(filename) + ".so";
#endif
}
std::string DynamicLibrary::GetVersionedFilename(const char* libname, int major, int minor) {
#if defined(_WIN32)
if (major >= 0 && minor >= 0)
return fmt::format("{}-{}-{}.dll", libname, major, minor);
else if (major >= 0)
return fmt::format("{}-{}.dll", libname, major);
else
return fmt::format("{}.dll", libname);
#elif defined(__APPLE__)
const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
if (major >= 0 && minor >= 0)
return fmt::format("{}{}.{}.{}.dylib", prefix, libname, major, minor);
else if (major >= 0)
return fmt::format("{}{}.{}.dylib", prefix, libname, major);
else
return fmt::format("{}{}.dylib", prefix, libname);
#else
const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
if (major >= 0 && minor >= 0)
return fmt::format("{}{}.so.{}.{}", prefix, libname, major, minor);
else if (major >= 0)
return fmt::format("{}{}.so.{}", prefix, libname, major);
else
return fmt::format("{}{}.so", prefix, libname);
#endif
}
bool DynamicLibrary::Open(const char* filename) {
#ifdef _WIN32
handle = reinterpret_cast<void*>(LoadLibraryA(filename));
#else
handle = dlopen(filename, RTLD_NOW);
#endif
return handle != nullptr;
}
void DynamicLibrary::Close() {
if (!IsOpen())
return;
#ifdef _WIN32
FreeLibrary(reinterpret_cast<HMODULE>(handle));
#else
dlclose(handle);
#endif
handle = nullptr;
}
void* DynamicLibrary::GetSymbolAddress(const char* name) const {
#ifdef _WIN32
return reinterpret_cast<void*>(GetProcAddress(reinterpret_cast<HMODULE>(handle), name));
#else
return reinterpret_cast<void*>(dlsym(handle, name));
#endif
}
} // namespace Common
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