INET Framework for OMNeT++/OMNEST
TCP_NSC_VirtualDataSendQueue Class Reference

#include <TCP_NSC_VirtualDataQueues.h>

Inheritance diagram for TCP_NSC_VirtualDataSendQueue:
TCP_NSC_SendQueue

List of all members.

Public Member Functions

 TCP_NSC_VirtualDataSendQueue ()
virtual ~TCP_NSC_VirtualDataSendQueue ()
virtual void setConnection (TCP_NSC_Connection *connP)
virtual void enqueueAppData (cPacket *msgP)
virtual int getNscMsg (void *bufferP, int bufferLengthP)
virtual void dequeueNscMsg (int msgLengthP)
ulong getBytesAvailable ()
virtual TCPSegmentcreateSegmentWithBytes (const void *tcpDataP, int tcpLengthP)
virtual void discardUpTo (uint32 seqNumP)

Protected Attributes

long int unsentNscBytesM

Detailed Description

Send/Receive queue that manages "virtual bytes", that is, byte counts only.


Constructor & Destructor Documentation

TCP_NSC_VirtualDataSendQueue::TCP_NSC_VirtualDataSendQueue ( )

Ctor.

virtual TCP_NSC_VirtualDataSendQueue::~TCP_NSC_VirtualDataSendQueue ( ) [virtual]

Virtual dtor.


Member Function Documentation

virtual TCPSegment* TCP_NSC_VirtualDataSendQueue::createSegmentWithBytes ( const void *  tcpDataP,
int  tcpLengthP 
) [virtual]

Called when the TCP wants to send or retransmit data, it constructs a TCP segment which contains the data from the requested sequence number range. The actually returned segment may contain less then maxNumBytes bytes if the subclass wants to reproduce the original segment boundaries when retransmitting.

called from inside of send_callback() called before called the send() to IP layer

Implements TCP_NSC_SendQueue.

virtual void TCP_NSC_VirtualDataSendQueue::dequeueNscMsg ( int  msgLengthP) [virtual]

Remove msgLengthP bytes from NSCqueue

called with return value of socket->send_data() if larger than 0

Implements TCP_NSC_SendQueue.

virtual void TCP_NSC_VirtualDataSendQueue::discardUpTo ( uint32  seqNumP) [virtual]

Tells the queue that bytes up to (but NOT including) seqNum have been transmitted and ACKed, so they can be removed from the queue.

Implements TCP_NSC_SendQueue.

virtual void TCP_NSC_VirtualDataSendQueue::enqueueAppData ( cPacket *  msgP) [virtual]

Called on SEND app command, it inserts in the queue the data the user wants to send. Implementations of this abstract class will decide what this means: copying actual bytes, just increasing the "last byte queued" variable, or storing cMessage object(s). The msg object should not be referenced after this point (sendQueue may delete it.)

Implements TCP_NSC_SendQueue.

ulong TCP_NSC_VirtualDataSendQueue::getBytesAvailable ( ) [virtual]

Utility function: returns how many bytes are available in the queue.

Implements TCP_NSC_SendQueue.

virtual int TCP_NSC_VirtualDataSendQueue::getNscMsg ( void *  bufferP,
int  bufferLengthP 
) [virtual]

Copy data to the buffer for send to NSC. returns lengh of copied data. create msg for socket->send_data()

called before called socket->send_data()

Implements TCP_NSC_SendQueue.

virtual void TCP_NSC_VirtualDataSendQueue::setConnection ( TCP_NSC_Connection connP) [virtual]

set connection queue.

Reimplemented from TCP_NSC_SendQueue.


Member Data Documentation


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