| // |
| // detail/null_static_mutex.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2011 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_NULL_STATIC_MUTEX_HPP |
| #define BOOST_ASIO_DETAIL_NULL_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_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS) |
| |
| #include <boost/asio/detail/scoped_lock.hpp> |
| |
| #include <boost/asio/detail/push_options.hpp> |
| |
| namespace boost { |
| namespace asio { |
| namespace detail { |
| |
| struct null_static_mutex |
| { |
| typedef boost::asio::detail::scoped_lock<null_static_mutex> scoped_lock; |
| |
| // Initialise the mutex. |
| void init() |
| { |
| } |
| |
| // Lock the mutex. |
| void lock() |
| { |
| } |
| |
| // Unlock the mutex. |
| void unlock() |
| { |
| } |
| |
| int unused_; |
| }; |
| |
| #define BOOST_ASIO_NULL_STATIC_MUTEX_INIT { 0 } |
| |
| } // namespace detail |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS) |
| |
| #endif // BOOST_ASIO_DETAIL_NULL_STATIC_MUTEX_HPP |