ModuleManager angefangen; libltdl zum Projekt hinzugefuegt

1 files changed, 89 insertions, 0 deletions

diff --git a/src/Common/ModuleManager.cpp b/src/Common/ModuleManager.cpp
new file mode 100644
index 0000000..2df1078
--- /dev/null
+++ b/src/Common/ModuleManager.cpp
@@ -0,0 +1,89 @@
+/*
+ * ModuleManager.cpp
+ *
+ * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
+ *
+ * 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/>.
+ */
+
+#include "ModuleManager.h"
+
+#include "ConfigEntry.h"
+#include "Logger.h"
+
+namespace Mad {
+namespace Common {
+
+ModuleManager ModuleManager::moduleManager;
+
+
+void ModuleManager::doInit() {
+  lt_dlinit();
+}
+
+void ModuleManager::doDeinit() {
+  while(!moduleOrder.empty()) {
+    unloadModule(moduleOrder.top());
+    moduleOrder.pop();
+  }
+
+  lt_dlexit();
+}
+
+bool ModuleManager::handleConfigEntry(const ConfigEntry &entry, bool handled) {
+  if(handled)
+    return false;
+
+  if(entry[0].getKey().matches("LoadModule")) {
+    if(!loadModule(entry[0][0].c_str()))
+      Logger::logf(Logger::ERROR, "Can't load module '%s'.", entry[0][0].c_str());
+
+    return true;
+  }
+
+  return false;
+}
+
+bool ModuleManager::loadModule(const std::string &name) {
+  lt_dlhandle handle = lt_dlopen(name.c_str());
+
+  if(!handle)
+    return false;
+
+  void (*initFun)();
+  initFun = (void(*)())lt_dlsym(handle, "init");
+
+  if(initFun)
+    (*initFun)();
+
+  modules.insert(std::make_pair(name, handle));
+  moduleOrder.push(name);
+
+  return true;
+}
+
+void ModuleManager::unloadModule(const std::string &name) {
+  void (*deinitFun)();
+  deinitFun = (void(*)())lt_dlsym(modules[name], "deinit");
+
+  if(deinitFun)
+    (*deinitFun)();
+
+  lt_dlclose(modules[name]);
+
+  modules.erase(name);
+}
+
+}
+}