rtProtoDV.cc

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/* -*-  Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
/*
 * rtProtoDV.cc
 *
 * Copyright (C) 1997 by USC/ISI
 * All rights reserved.                                            
 *                                                                
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation, advertising
 * materials, and other materials related to such distribution and use
 * acknowledge that the software was developed by the University of
 * Southern California, Information Sciences Institute.  The name of the
 * University may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 * 
 */

#ifndef lint
static const char rcsid[] =
    "@(#) $Header: /nfs/jade/vint/CVSROOT/ns-2/routing/rtProtoDV.cc,v 1.8 2000/09/01 03:04:06 haoboy Exp $ (USC/ISI)";
#endif

#include "agent.h"
#include "rtProtoDV.h"

int hdr_DV::offset_;

static class rtDVHeaderClass : public PacketHeaderClass {
public:
        rtDVHeaderClass() : PacketHeaderClass("PacketHeader/rtProtoDV",
                                              sizeof(hdr_DV)) {
                bind_offset(&hdr_DV::offset_);
        } 
} class_rtProtoDV_hdr;

static class rtProtoDVclass : public TclClass {
public:
        rtProtoDVclass() : TclClass("Agent/rtProto/DV") {}
        TclObject* create(int, const char*const*) {
                return (new rtProtoDV);
        }
} class_rtProtoDV;


int rtProtoDV::command(int argc, const char*const* argv)
{
        if (strcmp(argv[1], "send-update") == 0) {
                ns_addr_t dst;
                dst.addr_ = atoi(argv[2]);
                dst.port_ = atoi(argv[3]);
                u_int32_t mtvar = atoi(argv[4]);
                u_int32_t size  = atoi(argv[5]);
                sendpkt(dst, mtvar, size);
                return TCL_OK;
        }
        return Agent::command(argc, argv);
}

void rtProtoDV::sendpkt(ns_addr_t dst, u_int32_t mtvar, u_int32_t size)
{
        daddr() = dst.addr_;
        dport() = dst.port_;
        size_ = size;
        
        Packet* p = Agent::allocpkt();
        hdr_DV *rh = hdr_DV::access(p);
        rh->metricsVar() = mtvar;

        target_->recv(p);
}

void rtProtoDV::recv(Packet* p, Handler*)
{
        hdr_DV* rh = hdr_DV::access(p);
        hdr_ip* ih = hdr_ip::access(p);
        Tcl::instance().evalf("%s recv-update %d %d", name(),
                              ih->saddr(), rh->metricsVar());
        Packet::free(p);
}

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