lib-during/utils/big-lock.h

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/********************************************************************
 * Copyright (C) 2012 by Verimag                                    *
 * Initial author: Matthieu Moy                                     *
 * This file must not be distributed outside Verimag                *
 ********************************************************************/

#ifndef BIG_LOCK_H
#define BIG_LOCK_H

#include <boost/thread.hpp>

template<int dummy>
struct big_lock {
        big_lock() {
                m_big_lock.lock();
                m_unlocked = false;
        }
        ~big_lock() {
                if (!m_unlocked) {
                        m_unlocked = true;
                        m_big_lock.unlock();
                }
        }
        void unlock() {
                m_unlocked = true;
                m_big_lock.unlock();
        }
private:
        static boost::mutex m_big_lock;
        bool m_unlocked;
};

template<int dummy>
boost::mutex big_lock<dummy>::m_big_lock;

#endif // BIG_LOCK_H