1 // Copyright (C) 2002-2003

     2 // David Moore, William E. Kempf

     3 //

     4 //  Distributed under the Boost Software License, Version 1.0. (See accompanying 

     5 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

     6 

     7 #ifndef BOOST_BARRIER_JDM030602_HPP

     8 #define BOOST_BARRIER_JDM030602_HPP

     9 

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

    11 

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

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

    14 

    15 namespace boost {

    16 

    17 class BOOST_THREAD_DECL barrier

    18 {

    19 public:

    20     barrier(unsigned int count);

    21     ~barrier();

    22 

    23     bool wait();

    24 

    25 private:

    26     mutex m_mutex;

    27 // disable warnings about non dll import

    28 // see: http://www.boost.org/more/separate_compilation.html#dlls

    29 #ifdef BOOST_MSVC

    30 #   pragma warning(push)

    31 #   pragma warning(disable: 4251 4231 4660 4275)

    32 #endif

    33     condition m_cond;

    34 #ifdef BOOST_MSVC

    35 #   pragma warning(pop)

    36 #endif

    37     unsigned int m_threshold;

    38     unsigned int m_count;

    39     unsigned int m_generation;

    40 };

    41 

    42 }   // namespace boost

    43 

    44 #endif