OpenTTD/src/os/unix/library_loader_unix.cpp

65 lines
1.6 KiB
C++

/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file library_loader_unix.cpp Implementation of the LibraryLoader for Linux / MacOS */
#include "../../stdafx.h"
#include <dlfcn.h>
#include "../../library_loader.h"
#include "../../safeguards.h"
/* Emscripten cannot dynamically load other files. */
#if defined(__EMSCRIPTEN__)
void *LibraryLoader::OpenLibrary(const std::string &)
{
this->error = "Dynamic loading is not supported on this platform.";
return nullptr;
}
void LibraryLoader::CloseLibrary()
{
}
void *LibraryLoader::GetSymbol(const std::string &)
{
this->error = "Dynamic loading is not supported on this platform.";
return nullptr;
}
#else
void *LibraryLoader::OpenLibrary(const std::string &filename)
{
void *h = dlopen(filename.c_str(), RTLD_NOW | RTLD_LOCAL);
if (h == nullptr) {
this->error = dlerror();
}
return h;
}
void LibraryLoader::CloseLibrary()
{
dlclose(this->handle);
}
void *LibraryLoader::GetSymbol(const std::string &symbol_name)
{
void *p = dlsym(this->handle, symbol_name.c_str());
if (p == nullptr) {
this->error = dlerror();
}
return p;
}
#endif /* __EMSCRIPTEN__ */