diff options
Diffstat (limited to 'src/plugins/pluginloader.cpp')
-rw-r--r-- | src/plugins/pluginloader.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/plugins/pluginloader.cpp b/src/plugins/pluginloader.cpp new file mode 100644 index 0000000..fd8ce74 --- /dev/null +++ b/src/plugins/pluginloader.cpp @@ -0,0 +1,126 @@ +// * 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; +} |