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// * This file is part of the COLOBOT source code
// * Copyright (C) 2012 Polish Portal of Colobot (PPC)
// *
// * This program 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, either version 3 of the License, or
// * (at your option) any later version.
// *
// * This program 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 this program. If not, see http://www.gnu.org/licenses/.
// pluginloader.cpp
#include "pluginloader.h"
CPluginLoader::CPluginLoader(std::string filename)
{
mInterface = nullptr;
mFilename = filename;
mLoaded = false;
}
std::string CPluginLoader::GetName()
{
if (mLoaded)
return mInterface->PluginName();
return "(not loaded)";
}
int CPluginLoader::GetVersion()
{
if (mLoaded)
return mInterface->PluginVersion();
return 0;
}
bool CPluginLoader::IsLoaded()
{
return mLoaded;
}
bool CPluginLoader::UnloadPlugin()
{
if (!mLoaded) {
GetLogger()->Warn("Plugin %s is not loaded.\n");
return true;
}
bool (*uninstall)(std::string &) = (bool (*)(std::string &)) lt_dlsym(mHandle, "UninstallPluginEntry");
if (!uninstall) {
GetLogger()->Error("Error getting UninstallPluginEntry for plugin %s: %s\n", mFilename.c_str(), lt_dlerror());
return false;
}
std::string reason;
if (!uninstall(reason)) {
GetLogger()->Error("Could not unload plugin %s: %s\n", mFilename.c_str(), reason.c_str());
return false;
}
lt_dlclose(mHandle);
mLoaded = false;
return true;
}
bool CPluginLoader::LoadPlugin()
{
if (mFilename.length() == 0) {
GetLogger()->Warn("No plugin filename specified.\n");
return false;
}
mHandle = lt_dlopenext(mFilename.c_str());
if (!mHandle) {
GetLogger()->Error("Error loading plugin %s: %s\n", mFilename.c_str(), lt_dlerror());
return false;
}
void (*install)() = (void (*)()) lt_dlsym(mHandle, "InstallPluginEntry");
if (!install) {
GetLogger()->Error("Error getting InstallPluginEntry for plugin %s: %s\n", mFilename.c_str(), lt_dlerror());
return false;
}
CPluginInterface* (*getInterface)() = (CPluginInterface* (*)()) lt_dlsym(mHandle, "GetPluginInterfaceEntry");
if (!getInterface) {
GetLogger()->Error("Error getting GetPluginInterfaceEntry for plugin %s: %s\n", mFilename.c_str(), lt_dlerror());
return false;
}
install();
mInterface = getInterface();
mLoaded = true;
return true;
}
bool CPluginLoader::SetFilename(std::string filename)
{
bool ok = true;
if (mLoaded)
ok = UnloadPlugin();
if (ok)
mFilename = filename;
return ok;
}
std::string CPluginLoader::GetFilename()
{
return mFilename;
}
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