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boost/thread/barrier.hpp

// Copyright (C) 2002-2003
// David Moore, William E. Kempf
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  William E. Kempf makes no representations
// about the suitability of this software for any purpose.
// It is provided "as is" without express or implied warranty.

#ifndef BOOST_BARRIER_JDM030602_HPP
#define BOOST_BARRIER_JDM030602_HPP

#include <boost/thread/detail/config.hpp>

#include <boost/thread/mutex.hpp>
#include <boost/thread/condition.hpp>

namespace boost {

class BOOST_THREAD_DECL barrier
{
public:
    barrier(unsigned int count);
    ~barrier();

    bool wait();

private:
    mutex m_mutex;
    condition m_cond;
    unsigned int m_threshold;
    unsigned int m_count;
    unsigned int m_generation;
};

}   // namespace boost

#endif