46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2006. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#include<boost/interprocess/exceptions.hpp>
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#include <boost/interprocess/detail/posix_time_types_wrk.hpp>
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#include <boost/assert.hpp>
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namespace boost {
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namespace interprocess {
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inline barrier::barrier(unsigned int count)
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{
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if (count == 0)
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throw std::invalid_argument("count cannot be zero.");
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ipcdetail::barrierattr_wrapper barrier_attr;
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ipcdetail::barrier_initializer barrier
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(m_barrier, barrier_attr, static_cast<int>(count));
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barrier.release();
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}
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inline barrier::~barrier()
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{
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int res = pthread_barrier_destroy(&m_barrier);
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BOOST_ASSERT(res == 0);(void)res;
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}
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inline bool barrier::wait()
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{
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int res = pthread_barrier_wait(&m_barrier);
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if (res != PTHREAD_BARRIER_SERIAL_THREAD && res != 0){
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throw interprocess_exception(res);
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}
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return res == PTHREAD_BARRIER_SERIAL_THREAD;
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}
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} //namespace interprocess {
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} //namespace boost {
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