Chris@16: //
Chris@16: // detail/win_mutex.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_WIN_MUTEX_HPP
Chris@16: #define BOOST_ASIO_DETAIL_WIN_MUTEX_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_WINDOWS)
Chris@16: 
Chris@16: #include <boost/asio/detail/noncopyable.hpp>
Chris@16: #include <boost/asio/detail/scoped_lock.hpp>
Chris@16: #include <boost/asio/detail/socket_types.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: class win_mutex
Chris@16:   : private noncopyable
Chris@16: {
Chris@16: public:
Chris@16:   typedef boost::asio::detail::scoped_lock<win_mutex> scoped_lock;
Chris@16: 
Chris@16:   // Constructor.
Chris@16:   BOOST_ASIO_DECL win_mutex();
Chris@16: 
Chris@16:   // Destructor.
Chris@16:   ~win_mutex()
Chris@16:   {
Chris@16:     ::DeleteCriticalSection(&crit_section_);
Chris@16:   }
Chris@16: 
Chris@16:   // Lock the mutex.
Chris@16:   void lock()
Chris@16:   {
Chris@16:     ::EnterCriticalSection(&crit_section_);
Chris@16:   }
Chris@16: 
Chris@16:   // Unlock the mutex.
Chris@16:   void unlock()
Chris@16:   {
Chris@16:     ::LeaveCriticalSection(&crit_section_);
Chris@16:   }
Chris@16: 
Chris@16: private:
Chris@16:   // Initialisation must be performed in a separate function to the constructor
Chris@16:   // since the compiler does not support the use of structured exceptions and
Chris@16:   // C++ exceptions in the same function.
Chris@16:   BOOST_ASIO_DECL int do_init();
Chris@16: 
Chris@16:   ::CRITICAL_SECTION crit_section_;
Chris@16: };
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HEADER_ONLY)
Chris@16: # include <boost/asio/detail/impl/win_mutex.ipp>
Chris@16: #endif // defined(BOOST_ASIO_HEADER_ONLY)
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_WINDOWS)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_WIN_MUTEX_HPP