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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_SINGLETONIMPL_H
+#define TRINITY_SINGLETONIMPL_H
+
+#include "Singleton.h"
+
+// avoid the using namespace here cuz
+// its a .h file afterall
+
+template
+<
+typename T,
+class ThreadingModel,
+class CreatePolicy,
+class LifeTimePolicy
+>
+T&
+Trinity::Singleton<T, ThreadingModel, CreatePolicy, LifeTimePolicy >::Instance()
+{
+ if( !si_instance )
+ {
+ // double-checked Locking pattern
+ Guard();
+ if( !si_instance )
+ {
+ if( si_destroyed )
+ {
+ si_destroyed = false;
+ LifeTimePolicy::OnDeadReference();
+ }
+ si_instance = CreatePolicy::Create();
+ LifeTimePolicy::ScheduleCall(&DestroySingleton);
+ }
+ }
+
+ return *si_instance;
+}
+
+template
+<
+typename T,
+class ThreadingModel,
+class CreatePolicy,
+class LifeTimePolicy
+>
+void
+Trinity::Singleton<T, ThreadingModel, CreatePolicy, LifeTimePolicy>::DestroySingleton()
+{
+ CreatePolicy::Destroy(si_instance);
+ si_instance = NULL;
+ si_destroyed = true;
+}
+
+#define INSTANTIATE_SINGLETON_1(TYPE) \
+ template class Trinity::Singleton<TYPE, Trinity::SingleThreaded<TYPE>, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >; \
+ template<> TYPE* Trinity::Singleton<TYPE, Trinity::SingleThreaded<TYPE>, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_instance = 0; \
+ template<> bool Trinity::Singleton<TYPE, Trinity::SingleThreaded<TYPE>, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_destroyed = false
+
+#define INSTANTIATE_SINGLETON_2(TYPE, THREADINGMODEL) \
+ template class Trinity::Singleton<TYPE, THREADINGMODEL, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >; \
+ template<> TYPE* Trinity::Singleton<TYPE, THREADINGMODEL, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_instance = 0; \
+ template<> bool Trinity::Singleton<TYPE, THREADINGMODEL, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_destroyed = false
+
+#define INSTANTIATE_SINGLETON_3(TYPE, THREADINGMODEL, CREATIONPOLICY ) \
+ template class Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, Trinity::ObjectLifeTime<TYPE> >; \
+ template<> TYPE* Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, Trinity::ObjectLifeTime<TYPE> >::si_instance = 0; \
+ template<> bool Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, Trinity::ObjectLifeType<TYPE> >::si_destroyed = false
+
+#define INSTANTIATE_SINGLETON_4(TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME) \
+ template class Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >; \
+ template<> TYPE* Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >::si_instance = 0; \
+ template<> bool Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >::si_destroyed = false
+#endif
+