#include <ConnectivityProbeApp.h>

Public Member Functions
void	initialize ()
void	handleMessage (cMessage *msg)
	~ConnectivityProbeApp ()
Private Member Functions
void	extractTopology ()
Private Attributes
simtime_t	probeIntervall
cMessage *	probeTimer
GlobalStatistics *	globalStatistics
std::map< NodeHandle, SimpleGameClient * >	Topology
cOutVector	cOV_NodeCount
cOutVector	cOV_ZeroMissingNeighbors
cOutVector	cOV_AverageMissingNeighbors
cOutVector	cOV_MaxMissingNeighbors
cOutVector	cOV_AverageDrift

Detailed Description

Definition at line 34 of file ConnectivityProbeApp.h.

Constructor & Destructor Documentation

ConnectivityProbeApp::~ConnectivityProbeApp ( )

Definition at line 124 of file ConnectivityProbeApp.cc.

{
    // destroy self timer messages
    cancelAndDelete(probeTimer);
}

Member Function Documentation

void ConnectivityProbeApp::extractTopology ( ) [private]

Definition at line 110 of file ConnectivityProbeApp.cc.

Referenced by handleMessage().

{
    for(int i=0; i<=simulation.getLastModuleId(); i++) {
        cModule* module = simulation.getModule(i);
        SimpleGameClient* client;
        if((client = dynamic_cast<SimpleGameClient*>(module))) {

            if(client->isOverlayReady()) {
                Topology.insert(std::make_pair(client->getThisNode(), client));
            }
        }
    }
}

void ConnectivityProbeApp::handleMessage ( cMessage * msg )

Definition at line 47 of file ConnectivityProbeApp.cc.

{
    // fill topology with all modules
    extractTopology();

    if(Topology.size() == 0) {
        return;
    }

    // catch self timer messages
    if(msg->isName("probeTimer")) {
        //reset timer
        cancelEvent(probeTimer);
        scheduleAt(simTime() + probeIntervall, msg);

        int mnMax = 0;
        int mnZero = 0;
        int driftCount = 0;
        double mnAverage = 0.0;
        double drift = 0.0;

        for(std::map<NodeHandle, SimpleGameClient*>::iterator itTopology = Topology.begin(); itTopology != Topology.end(); ++itTopology) {
            int missing = 0;
            Vector2D pos = itTopology->second->getPosition();
            double AOIWidth = itTopology->second->getAOI();
            for(std::map<NodeHandle, SimpleGameClient*>::iterator itI = Topology.begin(); itI != Topology.end(); ++itI) {
                if(itI != itTopology && pos.distanceSqr(itI->second->getPosition()) <= AOIWidth*AOIWidth) {
                    NeighborMap::iterator currentSite = itTopology->second->Neighbors.find(itI->second->getThisNode());
                    if(currentSite == itTopology->second->Neighbors.end()) {
                        ++missing;
                    }
                    else {
                        drift += sqrt(currentSite->second.position.distanceSqr(itI->second->getPosition()));
                        ++driftCount;
                    }
                }
            }

            mnAverage += missing;
            if(mnMax < missing) {
                mnMax = missing;
            }
            if(missing == 0) {
                ++mnZero;
            }
        }
        mnAverage /= (double)Topology.size();
        if(driftCount > 0) {
            drift /= (double)driftCount;
        }

        cOV_ZeroMissingNeighbors.record((double)mnZero);
        RECORD_STATS (
            globalStatistics->addStdDev("ConnectivityProbe: percentage zero missing neighbors", (double)mnZero * 100.0 / (double)Topology.size());
            globalStatistics->addStdDev("ConnectivityProbe: average drift", drift);
        );
        cOV_AverageMissingNeighbors.record(mnAverage);
        cOV_MaxMissingNeighbors.record((double)mnMax);
        cOV_AverageDrift.record(drift);
    }
    Topology.clear();
}

void ConnectivityProbeApp::initialize ( )

Definition at line 29 of file ConnectivityProbeApp.cc.

{
    globalStatistics = GlobalStatisticsAccess().get();
    probeIntervall = par("connectivityProbeIntervall");
    probeTimer = new cMessage("probeTimer");

    if(probeIntervall > 0.0) {
        scheduleAt(simTime() + probeIntervall, probeTimer);

        cOV_NodeCount.setName("total node count");
        cOV_ZeroMissingNeighbors.setName("neighbor-error free nodes");
        cOV_AverageMissingNeighbors.setName("average missing neighbors per node");
        cOV_MaxMissingNeighbors.setName("largest missing neighbors count");
        cOV_AverageDrift.setName("average drift");
    }

}