78 lines
1.6 KiB
C++
78 lines
1.6 KiB
C++
#include "matador/utils/library.hpp"
|
|
#include "matador/utils/os.hpp"
|
|
|
|
#include <utility>
|
|
|
|
namespace matador::utils {
|
|
|
|
library::library(std::string lib)
|
|
: lib_(std::move(lib))
|
|
{}
|
|
|
|
library::~library()
|
|
{
|
|
unload();
|
|
}
|
|
|
|
bool library::load()
|
|
{
|
|
auto path = os::getenv("MATADOR_BACKENDS_PATH");
|
|
#if defined(_MSC_VER) || defined(__MINGW32__)
|
|
auto cookie = AddDllDirectory(std::wstring(path.begin(), path.end()).c_str());
|
|
handle_ = LoadLibraryExA((lib_ + ".dll").c_str(), nullptr, LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
|
|
RemoveDllDirectory(cookie);
|
|
#elif defined(__APPLE__)
|
|
handle_ = dlopen(std::string("lib" + lib_ + ".dylib").c_str(), RTLD_LAZY);
|
|
#else
|
|
handle_ = dlopen((path + "/lib" + lib_ + ".so").c_str(), RTLD_LAZY);
|
|
#endif
|
|
if (!handle_) {
|
|
#if defined(_MSC_VER) || defined(__MINGW32__)
|
|
DWORD errorMessageID = ::GetLastError();
|
|
auto errstr = utils::os::error_string(errorMessageID);
|
|
#else
|
|
// TODO: handle win32 and linux error
|
|
fprintf(stdout, "dlopen error: %s", dlerror());
|
|
#endif
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool library::load(const std::string &lib)
|
|
{
|
|
if (handle_) {
|
|
return false;
|
|
}
|
|
lib_ = lib;
|
|
return load();
|
|
}
|
|
|
|
bool library::unload()
|
|
{
|
|
bool ret(true);
|
|
if (handle_) {
|
|
#if defined(_MSC_VER) || defined(__MINGW32__)
|
|
ret = FreeLibrary(handle_) == TRUE;
|
|
#else
|
|
ret = dlclose(handle_) == 0;
|
|
#endif
|
|
if (!ret) {
|
|
} else {
|
|
handle_ = nullptr;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
func_ptr library::function(const std::string &f) const
|
|
{
|
|
#if defined(_MSC_VER) || defined(__MINGW32__)
|
|
return GetProcAddress(handle_, f.c_str());
|
|
#else
|
|
return dlsym(handle_, f.c_str());
|
|
#endif
|
|
}
|
|
|
|
}
|