| // |
| // generic/seq_packet_protocol.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2015 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_SEQ_PACKET_PROTOCOL_HPP |
| #define BOOST_ASIO_GENERIC_SEQ_PACKET_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_seq_packet_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 sequenced packet socket. |
| /** |
| * The boost::asio::generic::seq_packet_protocol class contains flags necessary |
| * for seq_packet-oriented sockets of any address family and protocol. |
| * |
| * @par Examples |
| * Constructing using a native address family and socket protocol: |
| * @code seq_packet_protocol p(AF_INET, IPPROTO_SCTP); @endcode |
| * |
| * @par Thread Safety |
| * @e Distinct @e objects: Safe.@n |
| * @e Shared @e objects: Safe. |
| * |
| * @par Concepts: |
| * Protocol. |
| */ |
| class seq_packet_protocol |
| { |
| public: |
| /// Construct a protocol object for a specific address family and protocol. |
| seq_packet_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 based around |
| * sequenced packets. |
| */ |
| template <typename Protocol> |
| seq_packet_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_SEQPACKET); |
| } |
| |
| /// 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 seq_packet_protocol& p1, |
| const seq_packet_protocol& p2) |
| { |
| return p1.family_ == p2.family_ && p1.protocol_ == p2.protocol_; |
| } |
| |
| /// Compare two protocols for inequality. |
| friend bool operator!=(const seq_packet_protocol& p1, |
| const seq_packet_protocol& p2) |
| { |
| return !(p1 == p2); |
| } |
| |
| /// The type of an endpoint. |
| typedef basic_endpoint<seq_packet_protocol> endpoint; |
| |
| /// The generic socket type. |
| typedef basic_seq_packet_socket<seq_packet_protocol> socket; |
| |
| private: |
| int family_; |
| int protocol_; |
| }; |
| |
| } // namespace generic |
| } // namespace asio |
| } // namespace boost |
| |
| #include <boost/asio/detail/pop_options.hpp> |
| |
| #endif // BOOST_ASIO_GENERIC_SEQ_PACKET_PROTOCOL_HPP |