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

   1 //
   2 // detail/win_static_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_STATIC_MUTEX_HPP
  12 #define BOOST_ASIO_DETAIL_WIN_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_WINDOWS)
  21
  22 #include <boost/asio/detail/scoped_lock.hpp>
  23
  24 #include <boost/asio/detail/push_options.hpp>
  25
  26 namespace boost {
  27 namespace asio {
  28 namespace detail {
  29
  30 struct win_static_mutex
  31 {
  32   typedef boost::asio::detail::scoped_lock<win_static_mutex> scoped_lock;
  33
  34   // Initialise the mutex.
  35   BOOST_ASIO_DECL void init();
  36
  37   // Initialisation must be performed in a separate function to the "public"
  38   // init() function since the compiler does not support the use of structured
  39   // exceptions and C++ exceptions in the same function.
  40   BOOST_ASIO_DECL int do_init();
  41
  42   // Lock the mutex.
  43   void lock()
  44   {
  45     ::EnterCriticalSection(&crit_section_);
  46   }
  47
  48   // Unlock the mutex.
  49   void unlock()
  50   {
  51     ::LeaveCriticalSection(&crit_section_);
  52   }
  53
  54   bool initialised_;
  55   ::CRITICAL_SECTION crit_section_;
  56 };
  57
  58 #if defined(UNDER_CE)
  59 # define BOOST_ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0 } }
  60 #else // defined(UNDER_CE)
  61 # define BOOST_ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0, 0 } }
  62 #endif // defined(UNDER_CE)
  63
  64 } // namespace detail
  65 } // namespace asio
  66 } // namespace boost
  67
  68 #include <boost/asio/detail/pop_options.hpp>
  69
  70 #if defined(BOOST_ASIO_HEADER_ONLY)
  71 # include <boost/asio/detail/impl/win_static_mutex.ipp>
  72 #endif // defined(BOOST_ASIO_HEADER_ONLY)
  73
  74 #endif // defined(BOOST_ASIO_WINDOWS)
  75
  76 #endif // BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP