// // This file is part of an OMNeT++/OMNEST simulation example. // // 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 Txc3 : public cSimpleModule { private: int counter; // Note the counter here protected: virtual void initialize(); virtual void handleMessage(cMessage *msg); }; Define_Module(Txc3); void Txc3::initialize() { // Initialize counter to ten. We'll decrement it every time and delete // the message when it reaches zero. counter = 10; // The WATCH() statement below will let you examine the variable under // Tkenv. After doing a few steps in the simulation, double-click either // `tic' or `toc', select the Contents tab in the dialog that pops up, // and you'll find "counter" in the list. WATCH(counter); if (strcmp("tic", getName()) == 0) { EV << "Sending initial message\n"; cMessage *msg = new cMessage("tictocMsg"); send(msg, "out"); } } void Txc3::handleMessage(cMessage *msg) { // Increment counter and check value. counter--; if (counter==0) { // If counter is zero, delete message. If you run the model, you'll // find that the simulation will stop at this point with the message // "no more events". EV << getName() << "'s counter reached zero, deleting message\n"; delete msg; } else { EV << getName() << "'s counter is " << counter << ", sending back message\n"; send(msg, "out"); } }