inet::UDPEchoApp Class Reference

UDP application. More...

#include <UDPEchoApp.h>

Inheritance diagram for inet::UDPEchoApp:

Protected Member Functions
virtual int	numInitStages () const override
virtual void	initialize (int stage) override
virtual void	handleMessageWhenUp (cMessage *msg) override
virtual void	finish () override
virtual void	refreshDisplay () const override
virtual bool	handleNodeStart (IDoneCallback *doneCallback) override
virtual bool	handleNodeShutdown (IDoneCallback *doneCallback) override
virtual void	handleNodeCrash () override
Protected Member Functions inherited from inet::ApplicationBase
virtual bool	isInitializeStage (int stage) override
virtual bool	isNodeStartStage (int stage) override
virtual bool	isNodeShutdownStage (int stage) override
Protected Member Functions inherited from inet::OperationalBase
virtual void	handleMessage (cMessage *msg) override
virtual void	handleMessageWhenDown (cMessage *msg)
virtual bool	handleOperationStage (LifecycleOperation *operation, int stage, IDoneCallback *doneCallback) override
	Perform one stage of a lifecycle operation. More...
virtual void	setOperational (bool isOperational)

Protected Attributes
UDPSocket	socket
int	numEchoed
Protected Attributes inherited from inet::OperationalBase
bool	isOperational
simtime_t	lastChange

Static Protected Attributes
static simsignal_t	pkSignal = registerSignal("pk")

Additional Inherited Members
Public Member Functions inherited from inet::ApplicationBase
	ApplicationBase ()
Public Member Functions inherited from inet::OperationalBase
	OperationalBase ()
Public Member Functions inherited from inet::ILifecycle
virtual	~ILifecycle ()

Detailed Description

UDP application.

See NED for more info.

Member Function Documentation

void inet::UDPEchoApp::finish ( )

overrideprotectedvirtual

{
    ApplicationBase::finish();
}

void inet::UDPEchoApp::handleMessageWhenUp ( cMessage *  msg )

overrideprotectedvirtual

Implements inet::OperationalBase.

{
    if (msg->getKind() == UDP_I_ERROR) {
        // ICMP error report -- discard it
        delete msg;
    }
    else if (msg->getKind() == UDP_I_DATA) {
        cPacket *pk = PK(msg);
        // statistics
        numEchoed++;
        emit(pkSignal, pk);

        // determine its source address/port
        UDPDataIndication *ctrl = check_and_cast<UDPDataIndication *>(pk->removeControlInfo());
        L3Address srcAddress = ctrl->getSrcAddr();
        int srcPort = ctrl->getSrcPort();
        delete ctrl;

        // send back
        socket.sendTo(pk, srcAddress, srcPort);
    }
    else {
        throw cRuntimeError("Message received with unexpected message kind = %d", msg->getKind());
    }
}

void inet::UDPEchoApp::handleNodeCrash ( )

overrideprotectedvirtual

Reimplemented from inet::OperationalBase.

{
}

bool inet::UDPEchoApp::handleNodeShutdown ( IDoneCallback *  doneCallback )

overrideprotectedvirtual

Reimplemented from inet::OperationalBase.

{
    //TODO if(socket.isOpened()) socket.close();
    return true;
}

bool inet::UDPEchoApp::handleNodeStart ( IDoneCallback *  doneCallback )

overrideprotectedvirtual

Reimplemented from inet::OperationalBase.

{
    socket.setOutputGate(gate("udpOut"));
    int localPort = par("localPort");
    socket.bind(localPort);
    MulticastGroupList mgl = getModuleFromPar<IInterfaceTable>(par("interfaceTableModule"), this)->collectMulticastGroups();
    socket.joinLocalMulticastGroups(mgl);
    return true;
}

void inet::UDPEchoApp::initialize ( int  stage )

overrideprotectedvirtual

Reimplemented from inet::OperationalBase.

{
    ApplicationBase::initialize(stage);

    if (stage == INITSTAGE_LOCAL) {
        // init statistics
        numEchoed = 0;
        WATCH(numEchoed);
    }
}

virtual int inet::UDPEchoApp::numInitStages ( ) const

inlineoverrideprotectedvirtual

Reimplemented from inet::OperationalBase.

{ return NUM_INIT_STAGES; }

void inet::UDPEchoApp::refreshDisplay ( ) const

overrideprotectedvirtual

{
    char buf[40];
    sprintf(buf, "echoed: %d pks", numEchoed);
    getDisplayString().setTagArg("t", 0, buf);
}

Member Data Documentation

int inet::UDPEchoApp::numEchoed

protected

Referenced by handleMessageWhenUp(), initialize(), and refreshDisplay().

simsignal_t inet::UDPEchoApp::pkSignal = registerSignal("pk")

staticprotected

Referenced by handleMessageWhenUp().

UDPSocket inet::UDPEchoApp::socket

protected

Referenced by handleMessageWhenUp(), and handleNodeStart().

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The documentation for this class was generated from the following files:

• UDPEchoApp.h
• UDPEchoApp.cc