#ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED #define BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED // MS compatible compilers support #pragma once #if defined(_MSC_VER) && (_MSC_VER >= 1020) # pragma once #endif // // boost/detail/lwm_pthreads.hpp // // Copyright (c) 2002 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) // #include <pthread.h> namespace boost { namespace detail { class lightweight_mutex { private: pthread_mutex_t m_; lightweight_mutex(lightweight_mutex const &); lightweight_mutex & operator=(lightweight_mutex const &); public: lightweight_mutex() { // HPUX 10.20 / DCE has a nonstandard pthread_mutex_init #if defined(__hpux) && defined(_DECTHREADS_) pthread_mutex_init(&m_, pthread_mutexattr_default); #else pthread_mutex_init(&m_, 0); #endif } ~lightweight_mutex() { pthread_mutex_destroy(&m_); } class scoped_lock; friend class scoped_lock; class scoped_lock { private: pthread_mutex_t & m_; scoped_lock(scoped_lock const &); scoped_lock & operator=(scoped_lock const &); public: scoped_lock(lightweight_mutex & m): m_(m.m_) { pthread_mutex_lock(&m_); } ~scoped_lock() { pthread_mutex_unlock(&m_); } }; }; } // namespace detail } // namespace boost #endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED