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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_THREADINGMODEL_H
+#define TRINITY_THREADINGMODEL_H
+
+/**
+ * @class ThreadingModel<T>
+ *
+ */
+
+#include "Platform/Define.h"
+
+namespace Trinity
+{
+ inline void Guard(void *) {}
+
+ template<typename MUTEX> class GeneralLock
+ {
+ public:
+ GeneralLock(MUTEX &m) : i_mutex(m)
+ {
+ i_mutex.acquire();
+ }
+
+ ~GeneralLock()
+ {
+ i_mutex.release();
+ }
+ private:
+ GeneralLock(const GeneralLock &);
+ GeneralLock& operator=(const GeneralLock &);
+ MUTEX &i_mutex;
+ };
+
+ template <class T>
+ class SingleThreaded
+ {
+ public:
+
+ struct Lock // empty object
+ {
+ Lock() {}
+ Lock(const T &) {}
+ Lock(const SingleThreaded<T> &) // for single threaded we ignore this
+ {
+ }
+ };
+
+ typedef T VolatileType;
+ };
+
+ // object level lockable
+ template<class T, class MUTEX>
+ class ObjectLevelLockable
+ {
+ public:
+ ObjectLevelLockable() : i_mtx() {}
+
+ friend class Lock;
+
+ class Lock
+ {
+ public:
+ Lock(ObjectLevelLockable<T, MUTEX> &host) : i_lock(host.i_mtx)
+ {
+ }
+
+ private:
+ GeneralLock<MUTEX> i_lock;
+ };
+
+ typedef volatile T VolatileType;
+
+ private:
+ // prevent the compiler creating a copy construct
+ ObjectLevelLockable(const ObjectLevelLockable<T, MUTEX> &);
+ ObjectLevelLockable<T, MUTEX>& operator=(const ObjectLevelLockable<T, MUTEX> &);
+
+ MUTEX i_mtx;
+ };
+
+ template<class T, class MUTEX>
+ class ClassLevelLockable
+ {
+ public:
+ class Lock;
+ friend class Lock;
+ typedef volatile T VolatileType;
+
+ ClassLevelLockable() {}
+
+ class Lock
+ {
+ public:
+ Lock(T& /*host*/) { ClassLevelLockable<T, MUTEX>::si_mtx.acquire(); }
+ Lock(ClassLevelLockable<T, MUTEX> &) { ClassLevelLockable<T, MUTEX>::si_mtx.acquire(); }
+ Lock() { ClassLevelLockable<T, MUTEX>::si_mtx.acquire(); }
+ ~Lock() { ClassLevelLockable<T, MUTEX>::si_mtx.release(); }
+ };
+
+ private:
+ static MUTEX si_mtx;
+ };
+
+}
+
+template<class T, class MUTEX> MUTEX Trinity::ClassLevelLockable<T, MUTEX>::si_mtx;
+
+#define INSTANTIATE_CLASS_MUTEX(CTYPE,MUTEX) \
+ template class Trinity::ClassLevelLockable<CTYPE, MUTEX >
+#endif
+