64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
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//
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// null_signal_blocker.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 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 ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
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#define ASIO_DETAIL_NULL_SIGNAL_BLOCKER_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 "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/config.hpp>
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#include "asio/detail/pop_options.hpp"
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#if !defined(BOOST_HAS_THREADS)
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#include "asio/detail/noncopyable.hpp"
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namespace asio {
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namespace detail {
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class null_signal_blocker
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: private noncopyable
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{
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public:
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// Constructor blocks all signals for the calling thread.
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null_signal_blocker()
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{
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}
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// Destructor restores the previous signal mask.
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~null_signal_blocker()
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{
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}
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// Block all signals for the calling thread.
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void block()
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{
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}
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// Restore the previous signal mask.
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void unblock()
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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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#endif // !defined(BOOST_HAS_THREADS)
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
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