#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 |