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124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
//
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// generic/raw_protocol.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2016 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_GENERIC_RAW_PROTOCOL_HPP
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#define BOOST_ASIO_GENERIC_RAW_PROTOCOL_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 <typeinfo>
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#include <boost/asio/basic_raw_socket.hpp>
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#include <boost/asio/detail/socket_types.hpp>
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#include <boost/asio/detail/throw_exception.hpp>
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#include <boost/asio/generic/basic_endpoint.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 generic {
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/// Encapsulates the flags needed for a generic raw socket.
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/**
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* The boost::asio::generic::raw_protocol class contains flags necessary for
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* raw sockets of any address family and protocol.
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*
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* @par Examples
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* Constructing using a native address family and socket protocol:
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* @code raw_protocol p(AF_INET, IPPROTO_ICMP); @endcode
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* Constructing from a specific protocol type:
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* @code raw_protocol p(boost::asio::ip::icmp::v4()); @endcode
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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.
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*/
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class raw_protocol
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{
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public:
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/// Construct a protocol object for a specific address family and protocol.
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raw_protocol(int address_family, int socket_protocol)
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: family_(address_family),
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protocol_(socket_protocol)
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{
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}
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/// Construct a generic protocol object from a specific protocol.
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/**
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* @throws @c bad_cast Thrown if the source protocol is not raw-oriented.
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*/
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template <typename Protocol>
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raw_protocol(const Protocol& source_protocol)
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: family_(source_protocol.family()),
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protocol_(source_protocol.protocol())
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{
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if (source_protocol.type() != type())
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{
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std::bad_cast ex;
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boost::asio::detail::throw_exception(ex);
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}
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}
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/// Obtain an identifier for the type of the protocol.
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int type() const
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{
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return BOOST_ASIO_OS_DEF(SOCK_RAW);
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}
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/// Obtain an identifier for the protocol.
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int protocol() const
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{
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return protocol_;
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}
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/// Obtain an identifier for the protocol family.
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int family() const
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{
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return family_;
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}
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/// Compare two protocols for equality.
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friend bool operator==(const raw_protocol& p1, const raw_protocol& p2)
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{
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return p1.family_ == p2.family_ && p1.protocol_ == p2.protocol_;
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}
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/// Compare two protocols for inequality.
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friend bool operator!=(const raw_protocol& p1, const raw_protocol& p2)
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{
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return !(p1 == p2);
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}
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/// The type of an endpoint.
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typedef basic_endpoint<raw_protocol> endpoint;
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/// The generic socket type.
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typedef basic_raw_socket<raw_protocol> socket;
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private:
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int family_;
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int protocol_;
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};
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} // namespace generic
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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_GENERIC_RAW_PROTOCOL_HPP
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