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68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
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/*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* Copyright (c) 2011 Helge Bahmann
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* Copyright (c) 2013 Tim Blechmann
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* Copyright (c) 2014 Andrey Semashev
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*/
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/*!
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* \file atomic/fences.hpp
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*
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* This header contains definition of \c atomic_thread_fence and \c atomic_signal_fence functions.
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*/
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#ifndef BOOST_ATOMIC_FENCES_HPP_INCLUDED_
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#define BOOST_ATOMIC_FENCES_HPP_INCLUDED_
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#include <boost/memory_order.hpp>
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#include <boost/atomic/capabilities.hpp>
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#include <boost/atomic/detail/operations.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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/*
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* IMPLEMENTATION NOTE: All interface functions MUST be declared with BOOST_FORCEINLINE,
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* see comment for convert_memory_order_to_gcc in ops_gcc_atomic.hpp.
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*/
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namespace boost {
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namespace atomics {
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#if BOOST_ATOMIC_THREAD_FENCE > 0
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BOOST_FORCEINLINE void atomic_thread_fence(memory_order order) BOOST_NOEXCEPT
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{
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detail::thread_fence(order);
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}
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#else
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BOOST_FORCEINLINE void atomic_thread_fence(memory_order) BOOST_NOEXCEPT
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{
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detail::lockpool::thread_fence();
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}
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#endif
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#if BOOST_ATOMIC_SIGNAL_FENCE > 0
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BOOST_FORCEINLINE void atomic_signal_fence(memory_order order) BOOST_NOEXCEPT
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{
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detail::signal_fence(order);
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}
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#else
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BOOST_FORCEINLINE void atomic_signal_fence(memory_order) BOOST_NOEXCEPT
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{
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detail::lockpool::signal_fence();
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}
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#endif
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} // namespace atomics
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using atomics::atomic_thread_fence;
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using atomics::atomic_signal_fence;
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} // namespace boost
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#endif // BOOST_ATOMIC_FENCES_HPP_INCLUDED_
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