RealworldApp Class Reference

Applicaton that communicates with a realword application via a socket. More...

#include <RealworldApp.h>

Inheritance diagram for RealworldApp:

Protected Member Functions
virtual char *	encapsulate (cPacket *msg, unsigned int *length, sockaddr **addr, socklen_t *addrlen)
	Converts an IP datagram to a data block for sending it to the (realworld) network.
virtual cPacket *	decapsulate (char *buf, uint32_t length, sockaddr *addr, socklen_t addrlen)
	Parses data received from the (realworld) network and converts it into a cMessage.
virtual bool	isApp ()
	The Connector connects to an application, so this method to returns "true".
Protected Member Functions inherited from RealworldConnector
virtual void	transmitToNetwork (cPacket *msg)
	Send a message to the (realworld) network.
virtual void	updateDisplayString ()

Additional Inherited Members
Public Member Functions inherited from RealworldConnector
	RealworldConnector ()
virtual	~RealworldConnector ()
virtual int	numInitStages () const
virtual void	initialize (int stage)
	Initialization of the module.
virtual void	handleMessage (cMessage *msg)
	The "main loop".
Protected Attributes inherited from RealworldConnector
int	gateIndexNetwOut
unsigned int	mtu
long	numSent
long	numSendError
long	numRcvdOK
long	numRcvError
cMessage *	packetNotification
PacketBuffer	packetBuffer
RealtimeScheduler *	scheduler
PacketParser *	parser

Detailed Description

Applicaton that communicates with a realword application via a socket.

Definition at line 33 of file RealworldApp.h.

Member Function Documentation

cPacket * RealworldApp::decapsulate ( char *  buf, uint32_t  length, sockaddr *  addr, socklen_t  addrlen  )

protectedvirtual

Parses data received from the (realworld) network and converts it into a cMessage.

Parameters

buf	A pointer to the data to be parsed
length	The lenght of the buffer in bytes
addr	Ignored (deleted)
addrlen	Ignored

Returns

The parsed message

Implements RealworldConnector.

Definition at line 52 of file RealworldApp.cc.

{
    cPacket* payload = 0;
    // "Decode" packet: 16bit payload length|payload
    payload = parser->decapsulatePayload( buf, length );
    if (!payload) {
        EV << "[RealworldApp::decapsulate()]\n"
           << "    Parsing of Payload failed, dropping packet"
           << endl;
    }

    delete buf;
    return payload;
    delete addr; // FIXME: unreachable
}

char * RealworldApp::encapsulate ( cPacket *  msg, unsigned int *  length, sockaddr **  addr, socklen_t *  addrlen  )

protectedvirtual

Converts an IP datagram to a data block for sending it to the (realworld) network.

Parameters

msg	A pointer to the message to be converted
length	A pointer to an int that will hold the length of the converted data
addr	Ignored (set to 0)
addrlen	Ignored (set to 0)

Returns

A pointer to the converted data

Implements RealworldConnector.

Definition at line 30 of file RealworldApp.cc.

{
    unsigned int payloadLen;
    *addr = 0;
    *addrlen = 0;

    // parse payload
    char* payload = parser->encapsulatePayload(msg, &payloadLen);
    if (!payload )
        return NULL;

    if(payloadLen > 0xffff) {
        opp_error("RealworldApp: Encapsulating packet failed: packet too long");
    }
    *length = payloadLen;

    return payload;
}

virtual bool RealworldApp::isApp ( )

inlineprotectedvirtual

The Connector connects to an application, so this method to returns "true".

Returns

true

Reimplemented from RealworldConnector.

Definition at line 69 of file RealworldApp.h.

{return true;}

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

• RealworldApp.h
• RealworldApp.cc