multicast-udp-transport.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014-2023,  Regents of the University of California,
 *                           Arizona Board of Regents,
 *                           Colorado State University,
 *                           University Pierre & Marie Curie, Sorbonne University,
 *                           Washington University in St. Louis,
 *                           Beijing Institute of Technology,
 *                           The University of Memphis.
 *
 * This file is part of NFD (Named Data Networking Forwarding Daemon).
 * See AUTHORS.md for complete list of NFD authors and contributors.
 *
 * NFD is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef NFD_DAEMON_FACE_MULTICAST_UDP_TRANSPORT_HPP
#define NFD_DAEMON_FACE_MULTICAST_UDP_TRANSPORT_HPP
 
#include "datagram-transport.hpp"
 
#include <boost/asio/ip/udp.hpp>
#include <ndn-cxx/net/network-interface.hpp>
 
namespace nfd::face {
 
NFD_LOG_MEMBER_DECL_SPECIALIZED((DatagramTransport<boost::asio::ip::udp, Multicast>));
 
class MulticastUdpTransport final : public DatagramTransport<boost::asio::ip::udp, Multicast>
{
public:
  class Error : public std::runtime_error
  {
  public:
    using std::runtime_error::runtime_error;
  };
 
  MulticastUdpTransport(const boost::asio::ip::udp::endpoint& multicastGroup,
                        boost::asio::ip::udp::socket&& recvSocket,
                        boost::asio::ip::udp::socket&& sendSocket,
                        ndn::nfd::LinkType linkType);
 
  ssize_t
  getSendQueueLength() final;
 
  static void
  openRxSocket(boost::asio::ip::udp::socket& sock,
               const boost::asio::ip::udp::endpoint& multicastGroup,
               const boost::asio::ip::address& localAddress = {},
               const ndn::net::NetworkInterface* netif = nullptr);
 
  static void
  openTxSocket(boost::asio::ip::udp::socket& sock,
               const boost::asio::ip::udp::endpoint& localEndpoint,
               const ndn::net::NetworkInterface* netif = nullptr,
               bool enableLoopback = false);
 
private:
  void
  doSend(const Block& packet) final;
 
  void
  doClose() final;
 
private:
  boost::asio::ip::udp::endpoint m_multicastGroup;
  boost::asio::ip::udp::socket m_sendSocket;
};
 
} // namespace nfd::face
 
#endif // NFD_DAEMON_FACE_MULTICAST_UDP_TRANSPORT_HPP