GroupEId.hh

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/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
 
This library 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 Lesser General Public License for
more details.
 
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "multikit" Multicast Application Shell
// Copyright (c) 1996-2024, Live Networks, Inc.  All rights reserved
// "Group Endpoint Id"
// C++ header
 
#ifndef _GROUPEID_HH
#define _GROUPEID_HH
 
#ifndef _BOOLEAN_HH
#include "Boolean.hh"
#endif
 
#ifndef _NET_ADDRESS_HH
#include "NetAddress.hh"
#endif
 
class GroupEId {
public:
  GroupEId(struct sockaddr_storage const& groupAddr,
           portNumBits portNum, u_int8_t ttl);
      // used for a 'source-independent multicast' group
  GroupEId(struct sockaddr_storage const& groupAddr,
           struct sockaddr_storage const& sourceFilterAddr,
           portNumBits portNum);
      // used for a 'source-specific multicast' group
  GroupEId(); // tmp default constructor, until "Groupsock" interface uses "sockaddr_storage"
 
  struct sockaddr_storage const& groupAddress() const { return fGroupAddress; }
  struct sockaddr_storage const& sourceFilterAddress() const { return fSourceFilterAddress; }
 
  Boolean isSSM() const;
 
  portNumBits portNum() const;
 
  u_int8_t ttl() const { return fTTL; }
 
private:
  void init(struct sockaddr_storage const& groupAddr,
            struct sockaddr_storage const& sourceFilterAddr,
            portNumBits portNum,
            u_int8_t ttl);
 
private:
  struct sockaddr_storage fGroupAddress; // also includes port number (in network byte order)
  struct sockaddr_storage fSourceFilterAddress;
  u_int8_t fTTL;
};
 
#endif