EtherHub Class Reference

List of all members.

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Detailed Description

Models a wiring hub. It simply broadcasts the received message on all other ports.

Protected Member Functions
virtual void	initialize ()
virtual void	handleMessage (cMessage *)
virtual void	finish ()
Private Attributes
int	ports
long	numMessages

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Member Function Documentation

void EtherHub::finish (   )  [protected, virtual]

{ if (par("writeScalars").boolValue()) { double t = simTime(); recordScalar("simulated time", t); recordScalar("messages handled", numMessages); if (t>0) recordScalar("messages/sec", numMessages/t); } }

void EtherHub::handleMessage (  cMessage *   )  [protected, virtual]

{ // Handle frame sent down from the network entity: send out on every other port int arrivalPort = msg->arrivalGate()->index(); EV << "Frame " << msg << " arrived on port " << arrivalPort << ", broadcasting on all other ports\n"; numMessages++; if (ports<=1) { delete msg; return; } for (int i=0; i<ports; i++) { if (i!=arrivalPort) { bool isLast = (arrivalPort==ports-1) ? (i==ports-2) : (i==ports-1); cMessage *msg2 = isLast ? msg : (cMessage*) msg->dup(); send(msg2,"out",i); } } }

void EtherHub::initialize (   )  [protected, virtual]

{ numMessages = 0; WATCH(numMessages); ports = gate("in",0)->size(); if (gate("out",0)->size()!=ports) error("the sizes of the in[] and out[] gate vectors must be the same"); // autoconfig: tell everyone that full duplex is not possible over shared media EV << "Autoconfig: advertising that we only support half-duplex operation\n"; for (int i=0; i<ports; i++) { EtherAutoconfig *autoconf = new EtherAutoconfig("autoconf-halfduplex"); autoconf->setHalfDuplex(true); send(autoconf,"out",i); } }

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Member Data Documentation

long EtherHub::numMessages [private]

int EtherHub::ports [private]

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

• EtherHub.cc

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