//
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// ip/udp.hpp
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// ~~~~~~~~~~
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//
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// Copyright (c) 2003-2020 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 BOOST_ASIO_IP_UDP_HPP
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#define BOOST_ASIO_IP_UDP_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 <boost/asio/detail/config.hpp>
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#include <boost/asio/basic_datagram_socket.hpp>
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#include <boost/asio/detail/socket_types.hpp>
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#include <boost/asio/ip/basic_endpoint.hpp>
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#include <boost/asio/ip/basic_resolver.hpp>
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#include <boost/asio/ip/basic_resolver_iterator.hpp>
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#include <boost/asio/ip/basic_resolver_query.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace ip {
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/// Encapsulates the flags needed for UDP.
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/**
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* The boost::asio::ip::udp class contains flags necessary for UDP sockets.
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*
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* @par Thread Safety
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* @e Distinct @e objects: Safe.@n
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* @e Shared @e objects: Safe.
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*
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* @par Concepts:
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* Protocol, InternetProtocol.
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*/
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class udp
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{
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public:
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/// The type of a UDP endpoint.
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typedef basic_endpoint<udp> endpoint;
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/// Construct to represent the IPv4 UDP protocol.
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static udp v4() BOOST_ASIO_NOEXCEPT
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{
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return udp(BOOST_ASIO_OS_DEF(AF_INET));
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}
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/// Construct to represent the IPv6 UDP protocol.
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static udp v6() BOOST_ASIO_NOEXCEPT
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{
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return udp(BOOST_ASIO_OS_DEF(AF_INET6));
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}
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/// Obtain an identifier for the type of the protocol.
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int type() const BOOST_ASIO_NOEXCEPT
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{
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return BOOST_ASIO_OS_DEF(SOCK_DGRAM);
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}
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/// Obtain an identifier for the protocol.
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int protocol() const BOOST_ASIO_NOEXCEPT
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{
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return BOOST_ASIO_OS_DEF(IPPROTO_UDP);
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}
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/// Obtain an identifier for the protocol family.
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int family() const BOOST_ASIO_NOEXCEPT
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{
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return family_;
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}
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/// The UDP socket type.
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typedef basic_datagram_socket<udp> socket;
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/// The UDP resolver type.
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typedef basic_resolver<udp> resolver;
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/// Compare two protocols for equality.
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friend bool operator==(const udp& p1, const udp& p2)
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{
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return p1.family_ == p2.family_;
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}
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/// Compare two protocols for inequality.
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friend bool operator!=(const udp& p1, const udp& p2)
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{
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return p1.family_ != p2.family_;
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}
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private:
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// Construct with a specific family.
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explicit udp(int protocol_family) BOOST_ASIO_NOEXCEPT
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: family_(protocol_family)
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{
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}
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int family_;
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};
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} // namespace ip
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // BOOST_ASIO_IP_UDP_HPP
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