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- //
- // ip/v6_only.hpp
- // ~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 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 ASIO_IP_V6_ONLY_HPP
- #define ASIO_IP_V6_ONLY_HPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include "asio/detail/config.hpp"
- #include "asio/detail/socket_option.hpp"
-
- #include "asio/detail/push_options.hpp"
-
- namespace asio {
- namespace ip {
-
- /// Socket option for determining whether an IPv6 socket supports IPv6
- /// communication only.
- /**
- * Implements the IPPROTO_IPV6/IP_V6ONLY socket option.
- *
- * @par Examples
- * Setting the option:
- * @code
- * asio::ip::tcp::socket socket(my_context);
- * ...
- * asio::ip::v6_only option(true);
- * socket.set_option(option);
- * @endcode
- *
- * @par
- * Getting the current option value:
- * @code
- * asio::ip::tcp::socket socket(my_context);
- * ...
- * asio::ip::v6_only option;
- * socket.get_option(option);
- * bool v6_only = option.value();
- * @endcode
- *
- * @par Concepts:
- * GettableSocketOption, SettableSocketOption.
- */
- #if defined(GENERATING_DOCUMENTATION)
- typedef implementation_defined v6_only;
- #elif defined(IPV6_V6ONLY)
- typedef asio::detail::socket_option::boolean<
- IPPROTO_IPV6, IPV6_V6ONLY> v6_only;
- #else
- typedef asio::detail::socket_option::boolean<
- asio::detail::custom_socket_option_level,
- asio::detail::always_fail_option> v6_only;
- #endif
-
- } // namespace ip
- } // namespace asio
-
- #include "asio/detail/pop_options.hpp"
-
- #endif // ASIO_IP_V6_ONLY_HPP
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