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66 lines
1.3 KiB
66 lines
1.3 KiB
// |
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// detail/null_mutex.hpp |
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// ~~~~~~~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2003-2011 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_NULL_MUTEX_HPP |
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#define BOOST_ASIO_DETAIL_NULL_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_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS) |
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#include <boost/asio/detail/noncopyable.hpp> |
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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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class null_mutex |
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: private noncopyable |
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{ |
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public: |
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typedef boost::asio::detail::scoped_lock<null_mutex> scoped_lock; |
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// Constructor. |
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null_mutex() |
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{ |
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} |
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// Destructor. |
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~null_mutex() |
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{ |
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} |
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// Lock the mutex. |
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void lock() |
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{ |
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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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} |
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}; |
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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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#endif // !defined(BOOST_HAS_THREADS) || defined(BOOST_ASIO_DISABLE_THREADS) |
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#endif // BOOST_ASIO_DETAIL_NULL_MUTEX_HPP
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