TuttleOFX/libraries/tuttle/src/tuttle/common/atomic.hpp

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#ifndef _TUTTLE_ATOMIC_HPP_
#define _TUTTLE_ATOMIC_HPP_

#ifndef WITHOUT_BOOST_ATOMIC

#include <boost/atomic/atomic.hpp>

#else
// For compatibility with boost versions without boost.atomic (added in 1.53).
// Use mutex instead of atomic.

#define BOOST_ATOMIC_HPP
#include <boost/thread/mutex.hpp>
#include <boost/memory_order.hpp>

namespace boost
{

// Fake atomic class using mutex to work without boost.atomic.
template<typename T>
class atomic
{
public:
    typedef T value_type;
        atomic(const T v)
        : _value(v)
        {}

        void store( const T v, const memory_order unused )
        {
                boost::mutex::scoped_lock locker( _mutex );
                _value = v;
        }

        value_type load( const memory_order unused ) const
        {
                boost::mutex::scoped_lock locker( _mutex );
                return _value;
        }

private:
        T _value;
        mutable boost::mutex _mutex;
};

typedef atomic<bool> atomic_bool;

}

#endif

#endif