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//
// macos_fenced_block.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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)
//
#ifndef BOOST_ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
#define BOOST_ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/push_options.hpp>
#include <boost/asio/detail/push_options.hpp>
#include <boost/config.hpp>
#include <boost/asio/detail/pop_options.hpp>
#if defined(__MACH__) && defined(__APPLE__)
#include <boost/asio/detail/push_options.hpp>
#include <libkern/OSAtomic.h>
#include <boost/asio/detail/pop_options.hpp>
namespace boost {
namespace asio {
namespace detail {
class macos_fenced_block
: private noncopyable
{
public:
// Constructor.
macos_fenced_block()
{
OSMemoryBarrier();
}
// Destructor.
~macos_fenced_block()
{
OSMemoryBarrier();
}
};
} // namespace detail
} // namespace asio
} // namespace boost
#endif // defined(__MACH__) && defined(__APPLE__)
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
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