1 //
2 // detail/std_mutex.hpp
3 // ~~~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
6 //
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
9 //
10 
11 #ifndef BOOST_ASIO_DETAIL_STD_MUTEX_HPP
12 #define BOOST_ASIO_DETAIL_STD_MUTEX_HPP
13 
14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
15 # pragma once
16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
17 
18 #include <boost/asio/detail/config.hpp>
19 
20 #if defined(BOOST_ASIO_HAS_STD_MUTEX_AND_CONDVAR)
21 
22 #include <mutex>
23 #include <boost/asio/detail/noncopyable.hpp>
24 #include <boost/asio/detail/scoped_lock.hpp>
25 
26 #include <boost/asio/detail/push_options.hpp>
27 
28 namespace boost {
29 namespace asio {
30 namespace detail {
31 
32 class std_event;
33 
34 class std_mutex
35   : private noncopyable
36 {
37 public:
38   typedef boost::asio::detail::scoped_lock<std_mutex> scoped_lock;
39 
40   // Constructor.
std_mutex()41   std_mutex()
42   {
43   }
44 
45   // Destructor.
~std_mutex()46   ~std_mutex()
47   {
48   }
49 
50   // Lock the mutex.
lock()51   void lock()
52   {
53     mutex_.lock();
54   }
55 
56   // Unlock the mutex.
unlock()57   void unlock()
58   {
59     mutex_.unlock();
60   }
61 
62 private:
63   friend class std_event;
64   std::mutex mutex_;
65 };
66 
67 } // namespace detail
68 } // namespace asio
69 } // namespace boost
70 
71 #include <boost/asio/detail/pop_options.hpp>
72 
73 #endif // defined(BOOST_ASIO_HAS_STD_MUTEX_AND_CONDVAR)
74 
75 #endif // BOOST_ASIO_DETAIL_STD_MUTEX_HPP
76