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-//
-// generic/datagram_protocol.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2014 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_GENERIC_DATAGRAM_PROTOCOL_HPP
-#define BOOST_ASIO_GENERIC_DATAGRAM_PROTOCOL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include <boost/asio/detail/config.hpp>
-
-#include <typeinfo>
-#include <boost/asio/basic_datagram_socket.hpp>
-#include <boost/asio/detail/socket_types.hpp>
-#include <boost/asio/detail/throw_exception.hpp>
-#include <boost/asio/generic/basic_endpoint.hpp>
-
-#include <boost/asio/detail/push_options.hpp>
-
-namespace boost {
-namespace asio {
-namespace generic {
-
-/// Encapsulates the flags needed for a generic datagram-oriented socket.
-/**
- * The boost::asio::generic::datagram_protocol class contains flags necessary
- * for datagram-oriented sockets of any address family and protocol.
- *
- * @par Examples
- * Constructing using a native address family and socket protocol:
- * @code datagram_protocol p(AF_INET, IPPROTO_UDP); @endcode
- * Constructing from a specific protocol type:
- * @code datagram_protocol p(boost::asio::ip::udp::v4()); @endcode
- *
- * @par Thread Safety
- * @e Distinct @e objects: Safe.@n
- * @e Shared @e objects: Safe.
- *
- * @par Concepts:
- * Protocol.
- */
-class datagram_protocol
-{
-public:
- /// Construct a protocol object for a specific address family and protocol.
- datagram_protocol(int address_family, int socket_protocol)
- : family_(address_family),
- protocol_(socket_protocol)
- {
- }
-
- /// Construct a generic protocol object from a specific protocol.
- /**
- * @throws @c bad_cast Thrown if the source protocol is not datagram-oriented.
- */
- template <typename Protocol>
- datagram_protocol(const Protocol& source_protocol)
- : family_(source_protocol.family()),
- protocol_(source_protocol.protocol())
- {
- if (source_protocol.type() != type())
- {
- std::bad_cast ex;
- boost::asio::detail::throw_exception(ex);
- }
- }
-
- /// Obtain an identifier for the type of the protocol.
- int type() const
- {
- return BOOST_ASIO_OS_DEF(SOCK_DGRAM);
- }
-
- /// Obtain an identifier for the protocol.
- int protocol() const
- {
- return protocol_;
- }
-
- /// Obtain an identifier for the protocol family.
- int family() const
- {
- return family_;
- }
-
- /// Compare two protocols for equality.
- friend bool operator==(const datagram_protocol& p1,
- const datagram_protocol& p2)
- {
- return p1.family_ == p2.family_ && p1.protocol_ == p2.protocol_;
- }
-
- /// Compare two protocols for inequality.
- friend bool operator!=(const datagram_protocol& p1,
- const datagram_protocol& p2)
- {
- return !(p1 == p2);
- }
-
- /// The type of an endpoint.
- typedef basic_endpoint<datagram_protocol> endpoint;
-
- /// The generic socket type.
- typedef basic_datagram_socket<datagram_protocol> socket;
-
-private:
- int family_;
- int protocol_;
-};
-
-} // namespace generic
-} // namespace asio
-} // namespace boost
-
-#include <boost/asio/detail/pop_options.hpp>
-
-#endif // BOOST_ASIO_GENERIC_DATAGRAM_PROTOCOL_HPP