asio/detail/std_mutex.hpp

0001 //
0002 // detail/std_mutex.hpp
0003 // ~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2025 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_DETAIL_STD_MUTEX_HPP
0012 #define BOOST_ASIO_DETAIL_STD_MUTEX_HPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019 #include <mutex>
0020 #include <boost/asio/detail/noncopyable.hpp>
0021 #include <boost/asio/detail/scoped_lock.hpp>
0022
0023 #include <boost/asio/detail/push_options.hpp>
0024
0025 namespace boost {
0026 namespace asio {
0027 namespace detail {
0028
0029 class std_event;
0030
0031 class std_mutex
0032   : private noncopyable
0033 {
0034 public:
0035   typedef boost::asio::detail::scoped_lock<std_mutex> scoped_lock;
0036
0037   // Constructor.
0038   std_mutex()
0039   {
0040   }
0041
0042   // Destructor.
0043   ~std_mutex()
0044   {
0045   }
0046
0047   // Try to lock the mutex.
0048   bool try_lock()
0049   {
0050     return mutex_.try_lock();
0051   }
0052
0053   // Lock the mutex.
0054   void lock()
0055   {
0056     mutex_.lock();
0057   }
0058
0059   // Unlock the mutex.
0060   void unlock()
0061   {
0062     mutex_.unlock();
0063   }
0064
0065 private:
0066   friend class std_event;
0067   std::mutex mutex_;
0068 };
0069
0070 } // namespace detail
0071 } // namespace asio
0072 } // namespace boost
0073
0074 #include <boost/asio/detail/pop_options.hpp>
0075
0076 #endif // BOOST_ASIO_DETAIL_STD_MUTEX_HPP