// | |
// detail/null_signal_blocker.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_SIGNAL_BLOCKER_HPP | |
#define BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_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) \ | |
|| defined(BOOST_WINDOWS) \ | |
|| defined(__CYGWIN__) \ | |
|| defined(__SYMBIAN32__) | |
#include <boost/asio/detail/noncopyable.hpp> | |
#include <boost/asio/detail/push_options.hpp> | |
namespace boost { | |
namespace asio { | |
namespace detail { | |
class null_signal_blocker | |
: private noncopyable | |
{ | |
public: | |
// Constructor blocks all signals for the calling thread. | |
null_signal_blocker() | |
{ | |
} | |
// Destructor restores the previous signal mask. | |
~null_signal_blocker() | |
{ | |
} | |
// Block all signals for the calling thread. | |
void block() | |
{ | |
} | |
// Restore the previous signal mask. | |
void unblock() | |
{ | |
} | |
}; | |
} // namespace detail | |
} // namespace asio | |
} // namespace boost | |
#include <boost/asio/detail/pop_options.hpp> | |
#endif // !defined(BOOST_HAS_THREADS) | |
// || defined(BOOST_ASIO_DISABLE_THREADS) | |
// || defined(BOOST_WINDOWS) | |
// || defined(__CYGWIN__) | |
// || defined(__SYMBIAN32__) | |
#endif // BOOST_ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP |