//
// This file is part of an OMNeT++/OMNEST simulation example.
//
// Copyright (C) 2003 Ahmet Sekercioglu
// Copyright (C) 2003-2015 Andras Varga
//
// This file is distributed WITHOUT ANY WARRANTY. See the file
// `license' for details on this and other legal matters.
//
#include <stdio.h>
#include <string.h>
#include <omnetpp.h>
#include "tictoc14_m.h"
using namespace omnetpp;
class Txc14 : public cSimpleModule
{
private:
long numSent;
long numReceived;
protected:
virtual TicTocMsg14 *generateMessage();
virtual void forwardMessage(TicTocMsg14 *msg);
virtual void refreshDisplay() const override;
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
};
{
// Initialize variables
numSent = 0;
numReceived = 0;
WATCH(numSent);
WATCH(numReceived);
// Module 0 sends the first message
if (getIndex() == 0) {
// Boot the process scheduling the initial message as a self-message.
TicTocMsg14 *msg = generateMessage();
numSent++;
scheduleAt(0.0, msg);
}
}
{
TicTocMsg14 *ttmsg = check_and_cast<TicTocMsg14 *>(msg);
if (ttmsg->getDestination() == getIndex()) {
// Message arrived
int hopcount = ttmsg->getHopCount();
EV << "Message " << ttmsg << " arrived after " << hopcount << " hops.\n";
numReceived++;
delete ttmsg;
bubble("ARRIVED, starting new one!");
// Generate another one.
EV << "Generating another message: ";
TicTocMsg14 *newmsg = generateMessage();
EV << newmsg << endl;
forwardMessage(newmsg);
numSent++;
}
else {
// We need to forward the message.
forwardMessage(ttmsg);
}
}
TicTocMsg14 *Txc14::generateMessage()
{
// Produce source and destination addresses.
int src = getIndex(); // our module index
int n = getVectorSize(); // module vector size
int dest = intuniform(0, n-2);
if (dest >= src)
dest++;
char msgname[20];
sprintf(msgname, "tic-%d-to-%d", src, dest);
// Create message object and set source and destination field.
TicTocMsg14 *msg = new TicTocMsg14(msgname);
msg->setSource(src);
msg->setDestination(dest);
return msg;
}
void Txc14::forwardMessage(TicTocMsg14 *msg)
{
// Increment hop count.
msg->setHopCount(msg->getHopCount()+1);
// Same routing as before: random gate.
int n = gateSize("gate");
int k = intuniform(0, n-1);
EV << "Forwarding message " << msg << " on gate[" << k << "]\n";
send(msg, "gate$o", k);
}
{
char buf[40];
sprintf(buf, "rcvd: %ld sent: %ld", numReceived, numSent);
getDisplayString().setTagArg("t", 0, buf);
}