#ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED

#define BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED

// MS compatible compilers support #pragma once

#if defined(_MSC_VER) && (_MSC_VER >= 1020)

# pragma once

#endif

//

//  boost/detail/lightweight_mutex.hpp - lightweight mutex

//

//  Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.

//

// 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)

//

//  typedef <unspecified> boost::detail::lightweight_mutex;

//

//  boost::detail::lightweight_mutex is a header-only implementation of

//  a subset of the Mutex concept requirements:

//

//  http://www.boost.org/doc/html/threads/concepts.html#threads.concepts.Mutex

//

//  It maps to a CRITICAL_SECTION on Windows or a pthread_mutex on POSIX.

//

#include <boost/config.hpp>

#if !defined(BOOST_HAS_THREADS)

# include <boost/detail/lwm_nop.hpp>

#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)

#  include <boost/detail/lwm_win32_cs.hpp>

#elif defined(BOOST_HAS_PTHREADS)

#  include <boost/detail/lwm_pthreads.hpp>

#else

// Use #define BOOST_DISABLE_THREADS to avoid the error

#  error Unrecognized threading platform

#endif

#endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED