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+/*
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef TRINITY_SINGLETON_H
+#define TRINITY_SINGLETON_H
+
+/**
+ * @brief class Singleton
+ */
+
+#include "CreationPolicy.h"
+#include "ThreadingModel.h"
+#include "ObjectLifeTime.h"
+
+namespace Trinity
+{
+ template
+ <
+ typename T,
+ class ThreadingModel = Trinity::SingleThreaded<T>,
+ class CreatePolicy = Trinity::OperatorNew<T>,
+ class LifeTimePolicy = Trinity::ObjectLifeTime<T>
+ >
+ class Singleton
+ {
+ public:
+ static T& Instance();
+
+ protected:
+ Singleton() {};
+
+ private:
+
+ // Prohibited actions...this does not prevent hijacking.
+ Singleton(const Singleton &);
+ Singleton& operator=(const Singleton &);
+
+ // Singleton Helpers
+ static void DestroySingleton();
+
+ // data structure
+ typedef typename ThreadingModel::Lock Guard;
+ static T *si_instance;
+ static bool si_destroyed;
+ };
+}
+#endif
+