CODEWITHSUNDEEP
omnet++
arandomuser
arandomuser

Reputation: 571

OMNeT emit complex signals

I'm having trouble emitting some signals from my modules in OMNeT. In particular, one of my module has an array of signals to emit, something like:

simsignal_t* signalInputInterarrivalTime;
...
signalInputInterarrivalTime = new simsignal_t[N];

and then I registerSignal each element in the array with a different name. This way works, however in my .ned file I have to use as many @statistic rows as the maximum size of the array. This is of course not the best way, being nor parametric neither readable. Is it possible to declare a vector of signals to emit, something that fits better my case?

Upvotes: 2

Views: 1232

Answers (1)

Jerzy D.
Jerzy D.

Reputation: 7002

Yes, it is possible to dynamically create statistics in OMNeT++.
Add these lines to your NED file:

@signal[interarrivalTime*](type=simtime_t); // note an asterisk and the type of emitted values
@statisticTemplate[interarrivalTimeTemplate](record=vector);

Then declare in your C++ class:

simsignal_t interarrivalTimeSignals[10];

and create multiple instances of statistics:

for (int i = 0; i < 10; ++i) {
    char signalName[32];
    sprintf(signalName, "interarrivalTime%d", i);
    simsignal_t signal = registerSignal(signalName);
    cProperty *statisticTemplate = getProperties()->get("statisticTemplate", "interarrivalTimeTemplate");
    getEnvir()->addResultRecorders(this, signal, signalName,  statisticTemplate);
    interarrivalTimeSignals[i] = signal;
}

An example of using it:

simtime_t delay = simTime() - msg->getSendingTime();
emit(interarrivalTimeSignals[3], delay);

Note that the type of emitting value has to match the type declared in NED.

Upvotes: 6

Related Questions