TCP_NSC_VirtualDataQueues.h

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//
// Copyright (C) 2004 Andras Varga
//               2009 Zoltan Bojthe
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program; if not, see <http://www.gnu.org/licenses/>.
//

#ifndef __INET_TCP_NSC_VIRTUALDATAQUEUES_H
#define __INET_TCP_NSC_VIRTUALDATAQUEUES_H

#include <omnetpp.h>

#include "TCP_NSC_Queues.h"

#include "TCPConnection.h"

class INET_API TCP_NSC_VirtualDataSendQueue : public TCP_NSC_SendQueue
{
  public:
    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 TCPSegment * createSegmentWithBytes(const void* tcpDataP, int tcpLengthP);

    virtual void discardUpTo(uint32 seqNumP);

  protected:
    long int unsentNscBytesM;
};

class INET_API TCP_NSC_VirtualDataReceiveQueue : public TCP_NSC_ReceiveQueue
{
  public:
    TCP_NSC_VirtualDataReceiveQueue();

    virtual ~TCP_NSC_VirtualDataReceiveQueue();

    virtual void setConnection(TCP_NSC_Connection *connP);

    virtual uint32 insertBytesFromSegment(const TCPSegment *tcpsegP, void* bufferP, size_t bufferLengthP);

    virtual void enqueueNscData(void* dataP, int dataLengthP);

    virtual cPacket *extractBytesUpTo();

    virtual uint32 getAmountOfBufferedBytes();

    virtual uint32 getQueueLength();

    virtual void getQueueStatus();

    virtual void notifyAboutSending(const TCPSegment *tcpsegP);

  protected:
    long int bytesInQueueM;
};

#endif