ext-boost/boost/asio/detail/win_static_mutex.hpp
2019-08-24 15:39:04 +02:00

77 lines
1.9 KiB
C++

//
// detail/win_static_mutex.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
#define BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_WINDOWS)
#include <boost/asio/detail/scoped_lock.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct win_static_mutex
{
typedef boost::asio::detail::scoped_lock<win_static_mutex> scoped_lock;
// Initialise the mutex.
BOOST_ASIO_DECL void init();
// Initialisation must be performed in a separate function to the "public"
// init() function since the compiler does not support the use of structured
// exceptions and C++ exceptions in the same function.
BOOST_ASIO_DECL int do_init();
// Lock the mutex.
void lock()
{
::EnterCriticalSection(&crit_section_);
}
// Unlock the mutex.
void unlock()
{
::LeaveCriticalSection(&crit_section_);
}
bool initialised_;
::CRITICAL_SECTION crit_section_;
};
#if defined(UNDER_CE)
# define BOOST_ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0 } }
#else // defined(UNDER_CE)
# define BOOST_ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0, 0 } }
#endif // defined(UNDER_CE)
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/detail/impl/win_static_mutex.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // defined(BOOST_ASIO_WINDOWS)
#endif // BOOST_ASIO_DETAIL_WIN_STATIC_MUTEX_HPP