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3rdparty/boost_1_81_0/boost/atomic/fences.hpp 1.42 KB
63e88f80   Hu Chunming   提交三方库
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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/fence_operations.hpp>
  #include <boost/atomic/detail/header.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 gcc_atomic_memory_order_utils.hpp.
   */
  
  namespace boost {
  
  namespace atomics {
  
  BOOST_FORCEINLINE void atomic_thread_fence(memory_order order) BOOST_NOEXCEPT
  {
      atomics::detail::fence_operations::thread_fence(order);
  }
  
  BOOST_FORCEINLINE void atomic_signal_fence(memory_order order) BOOST_NOEXCEPT
  {
      atomics::detail::fence_operations::signal_fence(order);
  }
  
  } // namespace atomics
  
  using atomics::atomic_thread_fence;
  using atomics::atomic_signal_fence;
  
  } // namespace boost
  
  #include <boost/atomic/detail/footer.hpp>
  
  #endif // BOOST_ATOMIC_FENCES_HPP_INCLUDED_