lib-during/utils/atomic-variable.h

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/********************************************************************
 * Copyright (C) 2011 by Verimag                                    *
 * Initial author: Matthieu Moy                                     *
 * This file must not be distributed outside Verimag                *
 ********************************************************************/

#ifndef ATOMIC_VARIABLE_H
#define ATOMIC_VARIABLE_H

template<typename T>
class atomic_variable {
public:
        atomic_variable(T t) : v(t) {}
        atomic_variable() {}

        T read() {
                boost::unique_lock<boost::mutex> lock(m_mut);
                return v;
        }

        void write(T t) {
                boost::unique_lock<boost::mutex> lock(m_mut);
                v = t;
        }
        
        T operator++(int) {
                boost::unique_lock<boost::mutex> lock(m_mut);
                return v++;
        }
        T operator--(int) {
                boost::unique_lock<boost::mutex> lock(m_mut);
                return v--;
        }
private:
        T v;
        boost::mutex m_mut;
};

#endif // ATOMIC_VARIABLE_H