1 //
2 // detail/std_static_mutex.hpp
3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2019 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_STATIC_MUTEX_HPP
12 #define BOOST_ASIO_DETAIL_STD_STATIC_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_static_mutex
35   : private noncopyable
36 {
37 public:
38   typedef boost::asio::detail::scoped_lock<std_static_mutex> scoped_lock;
39 
40   // Constructor.
std_static_mutex(int)41   std_static_mutex(int)
42   {
43   }
44 
45   // Destructor.
~std_static_mutex()46   ~std_static_mutex()
47   {
48   }
49 
50   // Initialise the mutex.
init()51   void init()
52   {
53     // Nothing to do.
54   }
55 
56   // Lock the mutex.
lock()57   void lock()
58   {
59     mutex_.lock();
60   }
61 
62   // Unlock the mutex.
unlock()63   void unlock()
64   {
65     mutex_.unlock();
66   }
67 
68 private:
69   friend class std_event;
70   std::mutex mutex_;
71 };
72 
73 #define BOOST_ASIO_STD_STATIC_MUTEX_INIT 0
74 
75 } // namespace detail
76 } // namespace asio
77 } // namespace boost
78 
79 #include <boost/asio/detail/pop_options.hpp>
80 
81 #endif // defined(BOOST_ASIO_HAS_STD_MUTEX_AND_CONDVAR)
82 
83 #endif // BOOST_ASIO_DETAIL_STD_STATIC_MUTEX_HPP
84