1 files changed, 97 insertions, 0 deletions
diff --git a/src/plugins/pluginloader.cpp b/src/plugins/pluginloader.cpp
new file mode 100644
index 0000000..adceb6b
--- /dev/null
+++ b/src/plugins/pluginloader.cpp
@@ -0,0 +1,97 @@
+// * 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;
+}
+
+
+char* CPluginLoader::GetName()
+{
+    if (mLoaded)
+        return mInterface->PluginName();
+    return nullptr;
+}
+
+
+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;
+    }
+    
+    void (*uninstall)() = (void (*)()) lt_dlsym(mHandle, "UninstallPluginEntry");
+    if (!uninstall) {
+        GetLogger()->Error("Error getting UninstallPluginEntry for plugin %s: %s\n", mFilename.c_str(), lt_dlerror());
+        return false;
+    }
+    
+    lt_dlclose(mHandle);
+    mLoaded = false;
+    return true;
+}
+
+
+bool CPluginLoader::LoadPlugin()
+{
+    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;
+}