TCP_NSC_Queues.h

Go to the documentation of this file.

//
// 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_QUEUES_H
#define __INET_TCP_NSC_QUEUES_H

#include <omnetpp.h>
//#include "TCPConnection.h"
#include "TCPSegment.h"

// forward declarations:
class TCP_NSC_Connection;

class INET_API TCP_NSC_SendQueue : public cPolymorphic
{
  public:
    TCP_NSC_SendQueue() : connM(NULL) {}

    virtual ~TCP_NSC_SendQueue() {}

    virtual void setConnection(TCP_NSC_Connection *connP) {connM = connP; }

    virtual void enqueueAppData(cPacket *msgP) = 0;

    virtual int getNscMsg(void* bufferP, int bufferLengthP) = 0;

    virtual void dequeueNscMsg(int msgLengthP) = 0;

    virtual ulong getBytesAvailable() = 0;

    virtual TCPSegment * createSegmentWithBytes(const void* tcpDataP, int tcpLengthP) = 0;

    virtual void discardUpTo(uint32 seqNumP) = 0;

  protected:
    TCP_NSC_Connection *connM;
};

class INET_API TCP_NSC_ReceiveQueue : public cPolymorphic
{
  public:
    TCP_NSC_ReceiveQueue() : connM(NULL) {};

    virtual ~TCP_NSC_ReceiveQueue() {}

    virtual void setConnection(TCP_NSC_Connection *connP) { connM = connP; }

    virtual uint32 insertBytesFromSegment(const TCPSegment *tcpsegP, void* bufferP, size_t bufferLengthP) = 0;

    virtual void enqueueNscData(void* dataP, int dataLengthP) = 0;

    virtual cPacket *extractBytesUpTo() = 0;

    virtual uint32 getAmountOfBufferedBytes() = 0;

    virtual uint32 getQueueLength() = 0;

    virtual void getQueueStatus() = 0;

    virtual void notifyAboutSending(const TCPSegment *tcpsegP) = 0;

  protected:
    TCP_NSC_Connection *connM;
};

#endif