// | |
// boost/signals2/detail/lwm_pthreads.hpp | |
// | |
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd. | |
// Copyright (c) 2008 Frank Mori Hess | |
// | |
// 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) | |
// | |
#ifndef BOOST_SIGNALS2_LWM_PTHREADS_HPP | |
#define BOOST_SIGNALS2_LWM_PTHREADS_HPP | |
// MS compatible compilers support #pragma once | |
#if defined(_MSC_VER) && (_MSC_VER >= 1020) | |
# pragma once | |
#endif | |
#include <pthread.h> | |
namespace boost | |
{ | |
namespace signals2 | |
{ | |
class mutex | |
{ | |
private: | |
pthread_mutex_t m_; | |
mutex(mutex const &); | |
mutex & operator=(mutex const &); | |
public: | |
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 | |
} | |
~mutex() | |
{ | |
pthread_mutex_destroy(&m_); | |
} | |
void lock() | |
{ | |
pthread_mutex_lock(&m_); | |
} | |
bool try_lock() | |
{ | |
return pthread_mutex_trylock(&m_) == 0; | |
} | |
void unlock() | |
{ | |
pthread_mutex_unlock(&m_); | |
} | |
}; | |
} // namespace signals2 | |
} // namespace boost | |
#endif // #ifndef BOOST_SIGNALS2_LWM_PTHREADS_HPP |