ceph/src/boost/boost/asio/detail/win_mutex.hpp

   1 //
   2 // detail/win_mutex.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2020 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_ASIO_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
  28 namespace boost {
  29 namespace asio {
  30 namespace detail {
  31
  32 class win_mutex
  33   : private noncopyable
  34 {
  35 public:
  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
  59 private:
  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_ASIO_WINDOWS)
  79
  80 #endif // BOOST_ASIO_DETAIL_WIN_MUTEX_HPP