asio/detail/fenced_block.hpp

0001 //
0002 // detail/fenced_block.hpp
0003 // ~~~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_DETAIL_FENCED_BLOCK_HPP
0012 #define BOOST_ASIO_DETAIL_FENCED_BLOCK_HPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019
0020 #if !defined(BOOST_ASIO_HAS_THREADS) \
0021   || defined(BOOST_ASIO_DISABLE_FENCED_BLOCK)
0022 # include <boost/asio/detail/null_fenced_block.hpp>
0023 #else
0024 # include <boost/asio/detail/std_fenced_block.hpp>
0025 #endif
0026
0027 namespace boost {
0028 namespace asio {
0029 namespace detail {
0030
0031 #if !defined(BOOST_ASIO_HAS_THREADS) \
0032   || defined(BOOST_ASIO_DISABLE_FENCED_BLOCK)
0033 typedef null_fenced_block fenced_block;
0034 #else
0035 typedef std_fenced_block fenced_block;
0036 #endif
0037
0038 } // namespace detail
0039 } // namespace asio
0040 } // namespace boost
0041
0042 #endif // BOOST_ASIO_DETAIL_FENCED_BLOCK_HPP