diff options
| author | ReinUsesLisp <reinuseslisp@airmail.cc> | 2020-03-16 17:48:53 -0300 |
|---|---|---|
| committer | ReinUsesLisp <reinuseslisp@airmail.cc> | 2020-04-07 02:23:23 -0300 |
| commit | 7104e01bb3405369fc74a9c747c9038fc93cf6e3 (patch) | |
| tree | 42a2e12f870cd6b02d11a0cd0593ca7220ef02aa /src/common/dynamic_library.cpp | |
| parent | 27f122c48c2f12d53e13349b61e4c52fc9cb8b9b (diff) | |
common/dynamic_library: Import and adapt helper from Dolphin
Diffstat (limited to 'src/common/dynamic_library.cpp')
| -rw-r--r-- | src/common/dynamic_library.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/common/dynamic_library.cpp b/src/common/dynamic_library.cpp new file mode 100644 index 0000000000..7ab54e9e44 --- /dev/null +++ b/src/common/dynamic_library.cpp @@ -0,0 +1,106 @@ +// Copyright 2019 Dolphin Emulator Project +// Licensed under GPLv2+ +// Refer to the license.txt file included. + +#include <cstring> +#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) { + 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 |