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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 2.1 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.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**********/
// "multikit" Multicast Application Shell
// Copyright (c) 1996-1997, 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
const u_int8_t MAX_TTL = 255;
class Scope {
public:
Scope(u_int8_t ttl = 0, const char* publicKey = NULL);
Scope(const Scope& orig);
Scope& operator=(const Scope& rightSide);
~Scope();
u_int8_t ttl() const
{ return fTTL; }
const char* publicKey() const
{ return fPublicKey; }
unsigned publicKeySize() const;
private:
void assign(u_int8_t ttl, const char* publicKey);
void clean();
u_int8_t fTTL;
char* fPublicKey;
};
class GroupEId {
public:
GroupEId(struct in_addr const& groupAddr,
portNumBits portNum, Scope const& scope,
unsigned numSuccessiveGroupAddrs = 1);
// used for a 'source-independent multicast' group
GroupEId(struct in_addr const& groupAddr,
struct in_addr const& sourceFilterAddr,
portNumBits portNum,
unsigned numSuccessiveGroupAddrs = 1);
// used for a 'source-specific multicast' group
GroupEId(); // used only as a temp constructor prior to initialization
struct in_addr const& groupAddress() const { return fGroupAddress; }
struct in_addr const& sourceFilterAddress() const { return fSourceFilterAddress; }
Boolean isSSM() const;
unsigned numSuccessiveGroupAddrs() const {
// could be >1 for hier encoding
return fNumSuccessiveGroupAddrs;
}
portNumBits portNum() const { return fPortNum; }
const Scope& scope() const { return fScope; }
private:
void init(struct in_addr const& groupAddr,
struct in_addr const& sourceFilterAddr,
portNumBits portNum,
Scope const& scope,
unsigned numSuccessiveGroupAddrs);
private:
struct in_addr fGroupAddress;
struct in_addr fSourceFilterAddress;
unsigned fNumSuccessiveGroupAddrs;
portNumBits fPortNum;
Scope fScope;
};
#endif
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