| // |
| // detail/posix_mutex.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2016 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 |