44 lines
1.3 KiB
C++
44 lines
1.3 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) 2009 Helge Bahmann
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* Copyright (c) 2012 Tim Blechmann
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* Copyright (c) 2014, 2019 Andrey Semashev
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*/
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/*!
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* \file atomic/detail/ops_msvc_common.hpp
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*
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* This header contains common tools for MSVC implementation of the atomic operations.
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*/
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#ifndef BOOST_ATOMIC_DETAIL_OPS_MSVC_COMMON_HPP_INCLUDED_
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#define BOOST_ATOMIC_DETAIL_OPS_MSVC_COMMON_HPP_INCLUDED_
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#include <boost/atomic/detail/config.hpp>
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#include <boost/atomic/detail/header.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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// Define compiler barriers
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#if defined(__INTEL_COMPILER)
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#define BOOST_ATOMIC_DETAIL_COMPILER_BARRIER() __memory_barrier()
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#elif defined(__clang__)
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#define BOOST_ATOMIC_DETAIL_COMPILER_BARRIER() __atomic_signal_fence(__ATOMIC_SEQ_CST)
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#elif defined(_MSC_VER) && !defined(_WIN32_WCE)
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extern "C" void _ReadWriteBarrier(void);
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#pragma intrinsic(_ReadWriteBarrier)
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#define BOOST_ATOMIC_DETAIL_COMPILER_BARRIER() _ReadWriteBarrier()
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#endif
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#ifndef BOOST_ATOMIC_DETAIL_COMPILER_BARRIER
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#define BOOST_ATOMIC_DETAIL_COMPILER_BARRIER()
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#endif
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#include <boost/atomic/detail/footer.hpp>
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#endif // BOOST_ATOMIC_DETAIL_OPS_MSVC_COMMON_HPP_INCLUDED_
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