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