/Src/Dependencies/Boost/boost/asio/detail/win_mutex.hpp

 1//
 2// detail/win_mutex.hpp
 3// ~~~~~~~~~~~~~~~~~~~~
 4//
 5// Copyright (c) 2003-2011 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_WIN_MUTEX_HPP
12#define BOOST_ASIO_DETAIL_WIN_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_WINDOWS)
21
22#include <boost/asio/detail/noncopyable.hpp>
23#include <boost/asio/detail/scoped_lock.hpp>
24#include <boost/asio/detail/socket_types.hpp>
25
26#include <boost/asio/detail/push_options.hpp>
27
28namespace boost {
29namespace asio {
30namespace detail {
31
32class win_mutex
33  : private noncopyable
34{
35public:
36  typedef boost::asio::detail::scoped_lock<win_mutex> scoped_lock;
37
38  // Constructor.
39  BOOST_ASIO_DECL win_mutex();
40
41  // Destructor.
42  ~win_mutex()
43  {
44    ::DeleteCriticalSection(&crit_section_);
45  }
46
47  // Lock the mutex.
48  void lock()
49  {
50    ::EnterCriticalSection(&crit_section_);
51  }
52
53  // Unlock the mutex.
54  void unlock()
55  {
56    ::LeaveCriticalSection(&crit_section_);
57  }
58
59private:
60  // Initialisation must be performed in a separate function to the constructor
61  // since the compiler does not support the use of structured exceptions and
62  // C++ exceptions in the same function.
63  BOOST_ASIO_DECL int do_init();
64
65  ::CRITICAL_SECTION crit_section_;
66};
67
68} // namespace detail
69} // namespace asio
70} // namespace boost
71
72#include <boost/asio/detail/pop_options.hpp>
73
74#if defined(BOOST_ASIO_HEADER_ONLY)
75# include <boost/asio/detail/impl/win_mutex.ipp>
76#endif // defined(BOOST_ASIO_HEADER_ONLY)
77
78#endif // defined(BOOST_WINDOWS)
79
80#endif // BOOST_ASIO_DETAIL_WIN_MUTEX_HPP