1 /* 2 * Distributed under the Boost Software License, Version 1.0. 3 * (See accompanying file LICENSE_1_0.txt or copy at 4 * http://www.boost.org/LICENSE_1_0.txt) 5 * 6 * Copyright (c) 2011 Helge Bahmann 7 * Copyright (c) 2013 Tim Blechmann 8 * Copyright (c) 2014 Andrey Semashev 9 */ 10 /*! 11 * \file atomic/fences.hpp 12 * 13 * This header contains definition of \c atomic_thread_fence and \c atomic_signal_fence functions. 14 */ 15 16 #ifndef BOOST_ATOMIC_FENCES_HPP_INCLUDED_ 17 #define BOOST_ATOMIC_FENCES_HPP_INCLUDED_ 18 19 #include <boost/memory_order.hpp> 20 #include <boost/atomic/capabilities.hpp> 21 #include <boost/atomic/detail/fence_operations.hpp> 22 #include <boost/atomic/detail/header.hpp> 23 24 #ifdef BOOST_HAS_PRAGMA_ONCE 25 #pragma once 26 #endif 27 28 /* 29 * IMPLEMENTATION NOTE: All interface functions MUST be declared with BOOST_FORCEINLINE, 30 * see comment for convert_memory_order_to_gcc in gcc_atomic_memory_order_utils.hpp. 31 */ 32 33 namespace boost { 34 35 namespace atomics { 36 atomic_thread_fence(memory_order order)37BOOST_FORCEINLINE void atomic_thread_fence(memory_order order) BOOST_NOEXCEPT 38 { 39 atomics::detail::fence_operations::thread_fence(order); 40 } 41 atomic_signal_fence(memory_order order)42BOOST_FORCEINLINE void atomic_signal_fence(memory_order order) BOOST_NOEXCEPT 43 { 44 atomics::detail::fence_operations::signal_fence(order); 45 } 46 47 } // namespace atomics 48 49 using atomics::atomic_thread_fence; 50 using atomics::atomic_signal_fence; 51 52 } // namespace boost 53 54 #include <boost/atomic/detail/footer.hpp> 55 56 #endif // BOOST_ATOMIC_FENCES_HPP_INCLUDED_ 57