68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2012. 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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#ifndef BOOST_INTERPROCESS_POSIX_SEMAPHORE_HPP
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#define BOOST_INTERPROCESS_POSIX_SEMAPHORE_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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#include <boost/interprocess/sync/posix/semaphore_wrapper.hpp>
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namespace boost {
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namespace interprocess {
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namespace ipcdetail {
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class posix_semaphore
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{
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posix_semaphore();
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posix_semaphore(const posix_semaphore&);
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posix_semaphore &operator= (const posix_semaphore &);
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public:
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posix_semaphore(unsigned int initialCount)
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{ semaphore_init(&m_sem, initialCount); }
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~posix_semaphore()
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{ semaphore_destroy(&m_sem); }
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void post()
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{ semaphore_post(&m_sem); }
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void wait()
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{ semaphore_wait(&m_sem); }
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bool try_wait()
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{ return semaphore_try_wait(&m_sem); }
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template<class TimePoint>
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bool timed_wait(const TimePoint &abs_time)
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{ return semaphore_timed_wait(&m_sem, abs_time); }
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private:
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sem_t m_sem;
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};
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} //namespace ipcdetail {
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} //namespace interprocess {
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} //namespace boost {
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#include <boost/interprocess/detail/config_end.hpp>
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#endif //#ifndef BOOST_INTERPROCESS_POSIX_SEMAPHORE_HPP
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