// -*-c++-*-
//
// OpenThreads library, Copyright (C) 2002 - 2003  The Open Thread Group
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

//
// ScopedLock and ReverseScopedLock templates
// ~~~~~~~
// 
#ifndef _ScopedLock_
#define _ScopedLock_

namespace OpenThreads{

template <class M> class ScopedLock
{
    private:
        M& m_lock;
        ScopedLock(const ScopedLock&); // prevent copy
        ScopedLock& operator=(const ScopedLock&); // prevent assign
    public:
        explicit ScopedLock(M& m):m_lock(m) {m_lock.lock();}
        ~ScopedLock(){m_lock.unlock();}
};

template <class M> class ReverseScopedLock
{
    private:
        M& m_lock;
        ReverseScopedLock(const ReverseScopedLock&); // prevent copy
        ReverseScopedLock& operator=(const ReverseScopedLock&); // prevent assign
    public:
        explicit ReverseScopedLock(M& m):m_lock(m) {m_lock.unlock();}
        ~ReverseScopedLock(){m_lock.lock();}
};

}
#endif
