tcp-int.h

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/* -*-  Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
/*
 * Copyright (c) 1997 Regents of the University of California.
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 *    must display the following acknowledgement:
 *  This product includes software developed by the Daedalus Research
 *  Group at the University of California Berkeley.
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#ifndef TCPINT_H
#define TCPINT_H

#include "tcp.h"
#include "nilist.h"

/*class CorresHost;*/
class CorresHost;
class TcpSessionAgent;
class Segment;

class IntTcpAgent : public TcpAgent, public slink {
    friend class CorresHost;
    friend class TcpSessionAgent;
  public:
    IntTcpAgent();
    int command(int argc, const char*const* argv);
    void createTcpSession();
    void send_much(int force, int reason, int maxburst = 0);
    void send_one(int sessionSeqno);
    void recv(Packet *pkt, Handler *);
    void opencwnd();
    void closecwnd(int how);
    Segment *rxmit_last(int reason, int seqno, int sessionSeqno, double ts);
    void output(int seqno, int reason = 0);
    void output_helper(Packet *p);
    int data_left_to_send();
    void newack(Packet* pkt);
    
  protected:
    class TcpSessionAgent *session_;
    int uniqTS_;
    int rightEdge_;
    double closecwTS_;
    double lastTS_;
    double winMult_;
    int winInc_;
    int count_;     /* used in window increment algorithms */
    int daddr_;
    int dport_;
    int sport_;
    int shift_;
    int mask_;
    int wt_;
    int dynWt_;
    int wndIncSeqno_;       /* used to mark RTTs for window inc. algorithm */
    int num_thresh_dupack_segs_;
};
#endif

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