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/*
* Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
*
* Copyright (C) 2008 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 TRINITY_DLL_DECL 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 TRINITY_DLL_DECL 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 TRINITY_DLL_DECL 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 TRINITY_DLL_DECL 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_DLL_DECL Trinity::ClassLevelLockable<CTYPE, MUTEX >
#endif
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