TCPMsgBasedRcvQueue Class Reference

#include <TCPMsgBasedRcvQueue.h>

Inheritance diagram for TCPMsgBasedRcvQueue:

List of all members.

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Detailed Description

FIXME

See also:

TCPMsgBasedSendQueue

Public Member Functions
	TCPMsgBasedRcvQueue ()
virtual	~TCPMsgBasedRcvQueue ()
virtual void	init (uint32 startSeq)
virtual std::string	info () const
virtual uint32	insertBytesFromSegment (TCPSegment *tcpseg)
virtual cMessage *	extractBytesUpTo (uint32 seq)
Protected Types
typedef std::map< uint32, cMessage * >	PayloadList
Protected Attributes
PayloadList	payloadList

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Member Typedef Documentation

typedef std::map<uint32, cMessage *> TCPMsgBasedRcvQueue::PayloadList [protected]

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Constructor & Destructor Documentation

TCPMsgBasedRcvQueue::TCPMsgBasedRcvQueue (   )

Ctor. : TCPVirtualDataRcvQueue() { }

TCPMsgBasedRcvQueue::~TCPMsgBasedRcvQueue (   )  [virtual]

Virtual dtor. { }

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Member Function Documentation

cMessage * TCPMsgBasedRcvQueue::extractBytesUpTo (  uint32  seq  )  [virtual]

Should create a packet to be passed up to the app, up to (but NOT including) the given sequence no (usually rcv_nxt). It should return NULL if there's no more data to be passed up -- this method is called several times until it returns NULL. Reimplemented from TCPVirtualDataRcvQueue. { extractTo(seq); // pass up payload messages, in sequence number order if (payloadList.empty() || seqGreater(payloadList.begin()->first, seq)) return NULL; cMessage *msg = payloadList.begin()->second; payloadList.erase(payloadList.begin()); return msg; }

std::string TCPMsgBasedRcvQueue::info (   )  const [virtual]

Returns a string with region stored. Reimplemented from TCPVirtualDataRcvQueue. { std::string res; char buf[32]; sprintf(buf, "rcv_nxt=%u ", rcv_nxt); res = buf; for (RegionList::const_iterator i=regionList.begin(); i!=regionList.end(); ++i) { sprintf(buf, "[%u..%u) ", i->begin, i->end); res+=buf; } sprintf(buf, "%u msgs", payloadList.size()); res+=buf; return res; }

void TCPMsgBasedRcvQueue::init (  uint32  startSeq  )  [virtual]

Set initial receive sequence number. Reimplemented from TCPVirtualDataRcvQueue. { TCPVirtualDataRcvQueue::init(startSeq); }

uint32 TCPMsgBasedRcvQueue::insertBytesFromSegment (  TCPSegment *  tcpseg  )  [virtual]

Called when a TCP segment arrives. Returns sequence number for ACK. Reimplemented from TCPVirtualDataRcvQueue. { TCPVirtualDataRcvQueue::insertBytesFromSegment(tcpseg); cMessage *msg; uint32 endSeqNo; while ((msg=tcpseg->removeFirstPayloadMessage(endSeqNo))!=NULL) { // insert, avoiding duplicates PayloadList::iterator i = payloadList.find(endSeqNo); if (i!=payloadList.end()) {delete msg; continue;} payloadList[endSeqNo] = msg; } return rcv_nxt; }

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Member Data Documentation

PayloadList TCPMsgBasedRcvQueue::payloadList [protected]

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

• TCPMsgBasedRcvQueue.h
• TCPMsgBasedRcvQueue.cc

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