omni_mcast.h
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- /*
- * omni_mcast.h
- * Copyright (C) 2000 by the University of Southern California
- * $Id: omni_mcast.h,v 1.4 2005/08/25 18:58:04 johnh Exp $
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- *
- *
- * The copyright of this module includes the following
- * linking-with-specific-other-licenses addition:
- *
- * In addition, as a special exception, the copyright holders of
- * this module give you permission to combine (via static or
- * dynamic linking) this module with free software programs or
- * libraries that are released under the GNU LGPL and with code
- * included in the standard release of ns-2 under the Apache 2.0
- * license or under otherwise-compatible licenses with advertising
- * requirements (or modified versions of such code, with unchanged
- * license). You may copy and distribute such a system following the
- * terms of the GNU GPL for this module and the licenses of the
- * other code concerned, provided that you include the source code of
- * that other code when and as the GNU GPL requires distribution of
- * source code.
- *
- * Note that people who make modified versions of this module
- * are not obligated to grant this special exception for their
- * modified versions; it is their choice whether to do so. The GNU
- * General Public License gives permission to release a modified
- * version without this exception; this exception also makes it
- * possible to release a modified version which carries forward this
- * exception.
- *
- */
- /****************************************************************/
- /* omni_mcast.h : Chalermek Intanagonwiwat (USC/ISI) 08/16/99 */
- /****************************************************************/
- // Share api with diffusion and flooding
- // Using diffusion packet header
- #ifndef ns_omni_mcast_h
- #define ns_omni_mcast_h
- #include <assert.h>
- #include <math.h>
- #include <stdio.h>
- #include <signal.h>
- #include <float.h>
- #include <stdlib.h>
- #include <tcl.h>
- #include "diff_header.h"
- #include "agent.h"
- #include "tclcl.h"
- #include "ip.h"
- #include "config.h"
- #include "packet.h"
- #include "trace.h"
- #include "random.h"
- #include "classifier.h"
- #include "node.h"
- #include "iflist.h"
- #include "hash_table.h"
- #include "arp.h"
- #include "mac.h"
- #include "ll.h"
- #include "dsr/path.h"
- #define THIS_NODE here_.addr_
- #define MAC_RETRY_ 0 // 0 or 1
- #define JITTER 0.11 // (sec) to jitter broadcast
- #define ARP_BUFFER_CHECK 0.03 // (sec) between buffer checks
- #define ARP_MAX_ATTEMPT 3 // (times)
- #define ARP_BUF_SIZE 64 // (slots)
- #define SEND_BUFFER_CHECK 0.03 // (sec) between buffer checks
- #define SEND_TIMEOUT 30.0 // (sec) a packet can live in sendbuf
- #define SEND_BUF_SIZE 64 // (slots)
- #define SEND_MESSAGE(x,y,z) send_to_dmux(prepare_message(x,y,z), 0)
- class OmniMcastAgent;
- class OmniMcastArpBufEntry {
- public:
- Time t; // Insertion Time
- int attempt; // number of attempts
- Packet *p;
- OmniMcastArpBufEntry() { t=0; attempt=0; p=NULL; }
- };
- class OmniMcastArpBufferTimer : public TimerHandler {
- public:
- OmniMcastArpBufferTimer(OmniMcastAgent *a) : TimerHandler() { a_ = a; }
- void expire(Event *e);
- protected:
- OmniMcastAgent *a_;
- };
- class OmniMcastSendBufferEntry {
- public:
- Time t; // Insertion Time
- Packet *p;
- OmniMcastSendBufferEntry() { t=0; p=NULL; }
- };
- class OmniMcastSendBufTimer : public TimerHandler {
- public:
- OmniMcastSendBufTimer(OmniMcastAgent *a) : TimerHandler() { a_ = a; }
- void expire(Event *e);
- protected:
- OmniMcastAgent *a_;
- };
- // Omnicient Multicast Entry
- class OmniMcast_Entry {
- public:
- Agent_List *source;
- Agent_List *sink;
- OmniMcast_Entry() {
- source = NULL;
- sink = NULL;
- }
- void reset();
- void clear_agentlist(Agent_List *);
- };
- class OmniMcastAgent : public Agent {
- public:
- OmniMcastAgent();
- int command(int argc, const char*const* argv);
- void recv(Packet*, Handler*);
- OmniMcast_Entry routing_table[MAX_DATA_TYPE];
- protected:
- // Variables start here.
- int pk_count;
- Pkt_Hash_Table PktTable;
- Node *node;
- Trace *tracetarget; // Trace Target
- NsObject *ll;
- NsObject *port_dmux;
- ARPTable *arp_table;
- OmniMcastArpBufferTimer arp_buf_timer;
- OmniMcastArpBufEntry arp_buf[ARP_BUF_SIZE];
- OmniMcastSendBufTimer send_buf_timer;
- OmniMcastSendBufferEntry send_buf[SEND_BUF_SIZE];
- // Methods start here.
- inline void send_to_dmux(Packet *pkt, Handler *h) {
- port_dmux->recv(pkt, h);
- }
- void clear_arp_buf();
- void clear_send_buf();
- void reset();
- void ConsiderNew(Packet *);
- void Start();
- void Terminate();
- Packet *create_packet();
- Packet *prepare_message(unsigned int dtype, ns_addr_t to_addr, int msg_type);
- void DataForSink(Packet *);
- void GodForwardData(Packet *);
- void StopSource();
- void MACprepare(Packet *pkt, nsaddr_t next_hop, unsigned int type,
- bool lk_dtct);
- void MACsend(Packet *pkt, Time delay=0);
- void xmitFailed(Packet *pkt);
- void StickPacketInArpBuffer(Packet *pkt);
- void ArpBufferCheck();
- void SendBufferCheck();
- void StickPacketInSendBuffer(Packet *p);
- void trace(char *fmt,...);
- friend void OmniMcastXmitFailedCallback(Packet *pkt, void *data);
- friend class OmniMcastArpBufferTimer;
- friend class OmniMcastSendBufTimer;
- };
- #endif