Chris@16: //
Chris@16: // detail/posix_mutex.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_POSIX_MUTEX_HPP
Chris@16: #define BOOST_ASIO_DETAIL_POSIX_MUTEX_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_PTHREADS)
Chris@16: 
Chris@16: #include <pthread.h>
Chris@16: #include <boost/asio/detail/noncopyable.hpp>
Chris@16: #include <boost/asio/detail/scoped_lock.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: class posix_event;
Chris@16: 
Chris@16: class posix_mutex
Chris@16:   : private noncopyable
Chris@16: {
Chris@16: public:
Chris@16:   typedef boost::asio::detail::scoped_lock<posix_mutex> scoped_lock;
Chris@16: 
Chris@16:   // Constructor.
Chris@16:   BOOST_ASIO_DECL posix_mutex();
Chris@16: 
Chris@16:   // Destructor.
Chris@16:   ~posix_mutex()
Chris@16:   {
Chris@16:     ::pthread_mutex_destroy(&mutex_); // Ignore EBUSY.
Chris@16:   }
Chris@16: 
Chris@16:   // Lock the mutex.
Chris@16:   void lock()
Chris@16:   {
Chris@16:     (void)::pthread_mutex_lock(&mutex_); // Ignore EINVAL.
Chris@16:   }
Chris@16: 
Chris@16:   // Unlock the mutex.
Chris@16:   void unlock()
Chris@16:   {
Chris@16:     (void)::pthread_mutex_unlock(&mutex_); // Ignore EINVAL.
Chris@16:   }
Chris@16: 
Chris@16: private:
Chris@16:   friend class posix_event;
Chris@16:   ::pthread_mutex_t mutex_;
Chris@16: };
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HEADER_ONLY)
Chris@16: # include <boost/asio/detail/impl/posix_mutex.ipp>
Chris@16: #endif // defined(BOOST_ASIO_HEADER_ONLY)
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_HAS_PTHREADS)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_POSIX_MUTEX_HPP