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//
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// detail/null_static_mutex.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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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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//
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#ifndef BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
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#define BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if !defined(BOOST_ASIO_HAS_THREADS)
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#include <boost/asio/detail/scoped_lock.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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struct null_static_mutex
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{
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  typedef boost::asio::detail::scoped_lock<null_static_mutex> scoped_lock;
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  // Initialise the mutex.
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  void init()
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  {
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  }
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  // Lock the mutex.
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  void lock()
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  {
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  }
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  // Unlock the mutex.
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  void unlock()
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  {
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  }
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  int unused_;
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};
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#define BOOST_ASIO_NULL_STATIC_MUTEX_INIT { 0 }
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // !defined(BOOST_ASIO_HAS_THREADS)
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#endif // BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP