//
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// detail/win_static_mutex.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
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#define BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_WINDOWS)
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#include <boost/asio/detail/scoped_lock.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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struct win_static_mutex
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{
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typedef boost::asio::detail::scoped_lock<win_static_mutex> scoped_lock;
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// Initialise the mutex.
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BOOST_ASIO_DECL void init();
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// Initialisation must be performed in a separate function to the "public"
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// init() function since the compiler does not support the use of structured
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// exceptions and C++ exceptions in the same function.
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BOOST_ASIO_DECL int do_init();
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// Lock the mutex.
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void lock()
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{
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::EnterCriticalSection(&crit_section_);
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}
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// Unlock the mutex.
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void unlock()
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{
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::LeaveCriticalSection(&crit_section_);
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}
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bool initialised_;
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::CRITICAL_SECTION crit_section_;
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};
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#if defined(UNDER_CE)
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# define BOOST_ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0 } }
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#else // defined(UNDER_CE)
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# define BOOST_ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0, 0 } }
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#endif // defined(UNDER_CE)
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#if defined(BOOST_ASIO_HEADER_ONLY)
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# include <boost/asio/detail/impl/win_static_mutex.ipp>
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#endif // defined(BOOST_ASIO_HEADER_ONLY)
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#endif // defined(BOOST_ASIO_WINDOWS)
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#endif // BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
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