mirror of https://github.com/bsnes-emu/bsnes.git
128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
#pragma once
|
|
|
|
//dynamic linking support
|
|
|
|
#include <nall/intrinsics.hpp>
|
|
#include <nall/path.hpp>
|
|
#include <nall/stdint.hpp>
|
|
#include <nall/string.hpp>
|
|
#include <nall/utility.hpp>
|
|
|
|
#if defined(PLATFORM_WINDOWS)
|
|
#include <windows.h>
|
|
#include <nall/windows/utf8.hpp>
|
|
#else
|
|
#include <dlfcn.h>
|
|
#endif
|
|
|
|
namespace nall {
|
|
|
|
struct library {
|
|
library() = default;
|
|
~library() { close(); }
|
|
|
|
library& operator=(const library&) = delete;
|
|
library(const library&) = delete;
|
|
|
|
explicit operator bool() const { return open(); }
|
|
auto open() const -> bool { return handle; }
|
|
auto open(const string&, const string& = "") -> bool;
|
|
auto openAbsolute(const string&) -> bool;
|
|
auto sym(const string&) -> void*;
|
|
auto close() -> void;
|
|
|
|
private:
|
|
uintptr handle = 0;
|
|
};
|
|
|
|
#if defined(PLATFORM_LINUX) || defined(PLATFORM_BSD)
|
|
inline auto library::open(const string& name, const string& path) -> bool {
|
|
if(handle) close();
|
|
if(path) handle = (uintptr)dlopen(string(path, "lib", name, ".so"), RTLD_LAZY);
|
|
if(!handle) handle = (uintptr)dlopen(string(Path::user(), ".local/lib/lib", name, ".so"), RTLD_LAZY);
|
|
if(!handle) handle = (uintptr)dlopen(string("/usr/local/lib/lib", name, ".so"), RTLD_LAZY);
|
|
if(!handle) handle = (uintptr)dlopen(string("lib", name, ".so"), RTLD_LAZY);
|
|
return handle;
|
|
}
|
|
|
|
inline auto library::openAbsolute(const string& name) -> bool {
|
|
if(handle) close();
|
|
handle = (uintptr)dlopen(name, RTLD_LAZY);
|
|
return handle;
|
|
}
|
|
|
|
inline auto library::sym(const string& name) -> void* {
|
|
if(!handle) return nullptr;
|
|
return dlsym((void*)handle, name);
|
|
}
|
|
|
|
inline auto library::close() -> void {
|
|
if(!handle) return;
|
|
dlclose((void*)handle);
|
|
handle = 0;
|
|
}
|
|
#elif defined(PLATFORM_MACOS)
|
|
inline auto library::open(const string& name, const string& path) -> bool {
|
|
if(handle) close();
|
|
if(path) handle = (uintptr)dlopen(string(path, "lib", name, ".dylib"), RTLD_LAZY);
|
|
if(!handle) handle = (uintptr)dlopen(string(Path::user(), ".local/lib/lib", name, ".dylib"), RTLD_LAZY);
|
|
if(!handle) handle = (uintptr)dlopen(string("/usr/local/lib/lib", name, ".dylib"), RTLD_LAZY);
|
|
if(!handle) handle = (uintptr)dlopen(string("lib", name, ".dylib"), RTLD_LAZY);
|
|
return handle;
|
|
}
|
|
|
|
inline auto library::openAbsolute(const string& name) -> bool {
|
|
if(handle) close();
|
|
handle = (uintptr)dlopen(name, RTLD_LAZY);
|
|
return handle;
|
|
}
|
|
|
|
inline auto library::sym(const string& name) -> void* {
|
|
if(!handle) return nullptr;
|
|
return dlsym((void*)handle, name);
|
|
}
|
|
|
|
inline auto library::close() -> void {
|
|
if(!handle) return;
|
|
dlclose((void*)handle);
|
|
handle = 0;
|
|
}
|
|
#elif defined(PLATFORM_WINDOWS)
|
|
inline auto library::open(const string& name, const string& path) -> bool {
|
|
if(handle) close();
|
|
if(path) {
|
|
string filepath = {path, name, ".dll"};
|
|
handle = (uintptr)LoadLibraryW(utf16_t(filepath));
|
|
}
|
|
if(!handle) {
|
|
string filepath = {name, ".dll"};
|
|
handle = (uintptr)LoadLibraryW(utf16_t(filepath));
|
|
}
|
|
return handle;
|
|
}
|
|
|
|
inline auto library::openAbsolute(const string& name) -> bool {
|
|
if(handle) close();
|
|
handle = (uintptr)LoadLibraryW(utf16_t(name));
|
|
return handle;
|
|
}
|
|
|
|
inline auto library::sym(const string& name) -> void* {
|
|
if(!handle) return nullptr;
|
|
return (void*)GetProcAddress((HMODULE)handle, name);
|
|
}
|
|
|
|
inline auto library::close() -> void {
|
|
if(!handle) return;
|
|
FreeLibrary((HMODULE)handle);
|
|
handle = 0;
|
|
}
|
|
#else
|
|
inline auto library::open(const string&, const string&) -> bool { return false; }
|
|
inline auto library::openAbsolute(const string&) -> bool { return false; }
|
|
inline auto library::sym(const string&) -> void* { return nullptr; }
|
|
inline auto library::close() -> void {}
|
|
#endif
|
|
|
|
}
|