Chris@16: //
Chris@16: // detail/null_signal_blocker.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
Chris@16: #define BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if !defined(BOOST_ASIO_HAS_THREADS) \
Chris@16:   || defined(BOOST_ASIO_WINDOWS) \
Chris@16:   || defined(BOOST_ASIO_WINDOWS_RUNTIME) \
Chris@16:   || defined(__CYGWIN__) \
Chris@16:   || defined(__SYMBIAN32__)
Chris@16: 
Chris@16: #include <boost/asio/detail/noncopyable.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: class null_signal_blocker
Chris@16:   : private noncopyable
Chris@16: {
Chris@16: public:
Chris@16:   // Constructor blocks all signals for the calling thread.
Chris@16:   null_signal_blocker()
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Destructor restores the previous signal mask.
Chris@16:   ~null_signal_blocker()
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Block all signals for the calling thread.
Chris@16:   void block()
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Restore the previous signal mask.
Chris@16:   void unblock()
Chris@16:   {
Chris@16:   }
Chris@16: };
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // !defined(BOOST_ASIO_HAS_THREADS)
Chris@16:        // || defined(BOOST_ASIO_WINDOWS)
Chris@16:        // || defined(BOOST_ASIO_WINDOWS_RUNTIME)
Chris@16:        // || defined(__CYGWIN__)
Chris@16:        // || defined(__SYMBIAN32__)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP