inet::EchoProtocol Class Reference

TODO. More...

#include <EchoProtocol.h>

Inheritance diagram for inet::EchoProtocol:

Protected Member Functions
virtual void	processPacket (Packet *packet)
virtual void	processEchoRequest (Packet *packet)
virtual void	processEchoReply (Packet *packet)
virtual int	numInitStages () const override
virtual void	initialize (int stage) override
virtual void	handleMessage (cMessage *msg) override

Detailed Description

TODO.

Member Function Documentation

handleMessage()

void inet::EchoProtocol::handleMessage ( cMessage *  msg )

overrideprotectedvirtual

{
    cGate *arrivalGate = msg->getArrivalGate();
    if (!strcmp(arrivalGate->getName(), "ipIn"))
        processPacket(check_and_cast<Packet *>(msg));
}

initialize()

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

overrideprotectedvirtual

{
    cSimpleModule::initialize(stage);
    if (stage == INITSTAGE_NETWORK_LAYER) {
        registerProtocol(Protocol::echo, gate("ipOut"), gate("ipIn"));
    }
}

numInitStages()

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

inlineoverrideprotectedvirtual

{ return NUM_INIT_STAGES; }

processEchoReply()

void inet::EchoProtocol::processEchoReply ( Packet *  packet )

protectedvirtual

{
    delete reply;
}

Referenced by processPacket().

processEchoRequest()

void inet::EchoProtocol::processEchoRequest ( Packet *  packet )

protectedvirtual

{
    // turn request into a reply
    const auto& echoReq = request->popAtFront<EchoPacket>();
    Packet *reply = new Packet((std::string(request->getName()) + "-reply").c_str());
    const auto& echoReply = makeShared<EchoPacket>();
    echoReply->setChunkLength(echoReq->getChunkLength());
    echoReply->setType(ECHO_PROTOCOL_REPLY);
    echoReply->setIdentifier(echoReq->getIdentifier());
    echoReply->setSeqNumber(echoReq->getSeqNumber());
    reply->insertAtBack(echoReply);
    reply->insertAtBack(request->peekData());
    auto addressInd = request->getTag<L3AddressInd>();
 
    // swap src and dest
    // TODO check what to do if dest was multicast etc?
    auto addressReq = reply->addTag<L3AddressReq>();
    addressReq->setSrcAddress(addressInd->getDestAddress());
    addressReq->setDestAddress(addressInd->getSrcAddress());
 
    reply->addTag<DispatchProtocolReq>()->setProtocol(request->getTag<NetworkProtocolInd>()->getProtocol());
    reply->addTag<PacketProtocolTag>()->setProtocol(&Protocol::echo);
    send(reply, "ipOut");
    delete request;
}

Referenced by processPacket().

processPacket()

void inet::EchoProtocol::processPacket ( Packet *  packet )

protectedvirtual

{
    const auto& echoHdr = msg->peekAtFront<EchoPacket>();
    switch (echoHdr->getType()) {
        case ECHO_PROTOCOL_REQUEST:
            processEchoRequest(msg);
            break;
 
        case ECHO_PROTOCOL_REPLY:
            processEchoReply(msg);
            break;
 
        default:
            throw cRuntimeError("Unknown type %d", echoHdr->getType());
    }
}

Referenced by handleMessage().

---

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

• EchoProtocol.h
• EchoProtocol.cc