txc11.cc

//
// This file is part of an OMNeT++/OMNEST simulation example.
//
// Copyright (C) 2003 Ahmet Sekercioglu
// Copyright (C) 2003-2008 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>


class Txc11 : public cSimpleModule
{
  protected:
    virtual void forwardMessage(cMessage *msg);
    virtual void initialize();
    virtual void handleMessage(cMessage *msg);
};

Define_Module(Txc11);

void Txc11::initialize()
{
    if (getIndex()==0)
    {
        // Boot the process scheduling the initial message as a self-message.
        char msgname[20];
        sprintf(msgname, "tic-%d", getIndex());
        cMessage *msg = new cMessage(msgname);
        scheduleAt(0.0, msg);
    }
}

void Txc11::handleMessage(cMessage *msg)
{
    if (getIndex()==3)
    {
        // Message arrived.
        EV << "Message " << msg << " arrived.\n";
        delete msg;
    }
    else
    {
        // We need to forward the message.
        forwardMessage(msg);
    }
}

void Txc11::forwardMessage(cMessage *msg)
{
    // In this example, we just pick a random gate to send it on.
    // We draw a random number between 0 and the size of gate `out[]'.
    int n = gateSize("out");
    int k = intuniform(0,n-1);

    EV << "Forwarding message " << msg << " on port out[" << k << "]\n";
    send(msg, "out", k);
}

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