Chris@16: //
Chris@16: // ip/v6_only.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_IP_V6_ONLY_HPP
Chris@16: #define BOOST_ASIO_IP_V6_ONLY_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: #include <boost/asio/detail/socket_option.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 ip {
Chris@16: 
Chris@16: /// Socket option for determining whether an IPv6 socket supports IPv6
Chris@16: /// communication only.
Chris@16: /**
Chris@16:  * Implements the IPPROTO_IPV6/IP_V6ONLY socket option.
Chris@16:  *
Chris@16:  * @par Examples
Chris@16:  * Setting the option:
Chris@16:  * @code
Chris@16:  * boost::asio::ip::tcp::socket socket(io_service); 
Chris@16:  * ...
Chris@16:  * boost::asio::ip::v6_only option(true);
Chris@16:  * socket.set_option(option);
Chris@16:  * @endcode
Chris@16:  *
Chris@16:  * @par
Chris@16:  * Getting the current option value:
Chris@16:  * @code
Chris@16:  * boost::asio::ip::tcp::socket socket(io_service); 
Chris@16:  * ...
Chris@16:  * boost::asio::ip::v6_only option;
Chris@16:  * socket.get_option(option);
Chris@16:  * bool v6_only = option.value();
Chris@16:  * @endcode
Chris@16:  *
Chris@16:  * @par Concepts:
Chris@16:  * GettableSocketOption, SettableSocketOption.
Chris@16:  */
Chris@16: #if defined(GENERATING_DOCUMENTATION)
Chris@16: typedef implementation_defined v6_only;
Chris@16: #elif defined(IPV6_V6ONLY)
Chris@16: typedef boost::asio::detail::socket_option::boolean<
Chris@16:     IPPROTO_IPV6, IPV6_V6ONLY> v6_only;
Chris@16: #else
Chris@16: typedef boost::asio::detail::socket_option::boolean<
Chris@16:     boost::asio::detail::custom_socket_option_level,
Chris@16:     boost::asio::detail::always_fail_option> v6_only;
Chris@16: #endif
Chris@16: 
Chris@16: } // namespace ip
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // BOOST_ASIO_IP_V6_ONLY_HPP