| #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 <boost/assert.hpp> |
| #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_) |
| BOOST_VERIFY( pthread_mutex_init( &m_, pthread_mutexattr_default ) == 0 ); |
| #else |
| BOOST_VERIFY( pthread_mutex_init( &m_, 0 ) == 0 ); |
| #endif |
| } |
| |
| ~lightweight_mutex() |
| { |
| BOOST_VERIFY( pthread_mutex_destroy( &m_ ) == 0 ); |
| } |
| |
| 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_) |
| { |
| BOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 ); |
| } |
| |
| ~scoped_lock() |
| { |
| BOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 ); |
| } |
| }; |
| }; |
| |
| } // namespace detail |
| |
| } // namespace boost |
| |
| #endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED |