posix_mutex.hpp
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//
// detail/posix_mutex.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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 ASIO_DETAIL_POSIX_MUTEX_HPP
#define ASIO_DETAIL_POSIX_MUTEX_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#if defined(ASIO_HAS_PTHREADS)
#include <pthread.h>
#include "asio/detail/noncopyable.hpp"
#include "asio/detail/scoped_lock.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace detail {
class posix_event;
class posix_mutex
: private noncopyable
{
public:
typedef asio::detail::scoped_lock<posix_mutex> scoped_lock;
// Constructor.
ASIO_DECL posix_mutex();
// Destructor.
~posix_mutex()
{
::pthread_mutex_destroy(&mutex_); // Ignore EBUSY.
}
// Lock the mutex.
void lock()
{
(void)::pthread_mutex_lock(&mutex_); // Ignore EINVAL.
}
// Unlock the mutex.
void unlock()
{
(void)::pthread_mutex_unlock(&mutex_); // Ignore EINVAL.
}
private:
friend class posix_event;
::pthread_mutex_t mutex_;
};
} // namespace detail
} // namespace asio
#include "asio/detail/pop_options.hpp"
#if defined(ASIO_HEADER_ONLY)
# include "asio/detail/impl/posix_mutex.ipp"
#endif // defined(ASIO_HEADER_ONLY)
#endif // defined(ASIO_HAS_PTHREADS)
#endif // ASIO_DETAIL_POSIX_MUTEX_HPP