sl@0: #ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
sl@0: #define BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
sl@0: 
sl@0: // MS compatible compilers support #pragma once
sl@0: 
sl@0: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
sl@0: # pragma once
sl@0: #endif
sl@0: 
sl@0: //
sl@0: //  boost/detail/lwm_pthreads.hpp
sl@0: //
sl@0: //  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
sl@0: //
sl@0: // Distributed under the Boost Software License, Version 1.0. (See
sl@0: // accompanying file LICENSE_1_0.txt or copy at
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: //
sl@0: 
sl@0: #include <pthread.h>
sl@0: 
sl@0: namespace boost
sl@0: {
sl@0: 
sl@0: namespace detail
sl@0: {
sl@0: 
sl@0: class lightweight_mutex
sl@0: {
sl@0: private:
sl@0: 
sl@0:     pthread_mutex_t m_;
sl@0: 
sl@0:     lightweight_mutex(lightweight_mutex const &);
sl@0:     lightweight_mutex & operator=(lightweight_mutex const &);
sl@0: 
sl@0: public:
sl@0: 
sl@0:     lightweight_mutex()
sl@0:     {
sl@0: 
sl@0: // HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
sl@0: 
sl@0: #if defined(__hpux) && defined(_DECTHREADS_)
sl@0:         pthread_mutex_init(&m_, pthread_mutexattr_default);
sl@0: #else
sl@0:         pthread_mutex_init(&m_, 0);
sl@0: #endif
sl@0:     }
sl@0: 
sl@0:     ~lightweight_mutex()
sl@0:     {
sl@0:         pthread_mutex_destroy(&m_);
sl@0:     }
sl@0: 
sl@0:     class scoped_lock;
sl@0:     friend class scoped_lock;
sl@0: 
sl@0:     class scoped_lock
sl@0:     {
sl@0:     private:
sl@0: 
sl@0:         pthread_mutex_t & m_;
sl@0: 
sl@0:         scoped_lock(scoped_lock const &);
sl@0:         scoped_lock & operator=(scoped_lock const &);
sl@0: 
sl@0:     public:
sl@0: 
sl@0:         scoped_lock(lightweight_mutex & m): m_(m.m_)
sl@0:         {
sl@0:             pthread_mutex_lock(&m_);
sl@0:         }
sl@0: 
sl@0:         ~scoped_lock()
sl@0:         {
sl@0:             pthread_mutex_unlock(&m_);
sl@0:         }
sl@0:     };
sl@0: };
sl@0: 
sl@0: } // namespace detail
sl@0: 
sl@0: } // namespace boost
sl@0: 
sl@0: #endif // #ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED