68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
|
/*
|
||
|
|
* 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_
|