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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef ASIO_DETAIL_NULL_MUTEX_HPP
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#define ASIO_DETAIL_NULL_MUTEX_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/config.hpp>
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#include "asio/detail/pop_options.hpp"
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#if !defined(BOOST_HAS_THREADS)
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#include "asio/detail/noncopyable.hpp"
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#include "asio/detail/scoped_lock.hpp"
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typedef asio::detail::scoped_lock<null_mutex> scoped_lock;
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#endif // !defined(BOOST_HAS_THREADS)
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_NULL_MUTEX_HPP