/* -*-	Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- *//* * Copyright (c) 1997 The Regents of the University of California. * All rights reserved. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *      This product includes software developed by the Network Research *      Group at Lawrence Berkeley National Laboratory. * 4. Neither the name of the University nor of the Laboratory may be used *    to endorse or promote products derived from this software without *    specific prior written permission. *  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#) /home/ctk21/cvsroot//hssstcp/ns/ns-2.1b9/tcp/tcp-fack.h,v 1.2 2002/08/12 10:44:38 ctk21 Exp (LBL) */#ifndef ns_tcp_fack_h#define ns_tcp_fack_h#include "tcp.h"#include "scoreboard.h"#define TRUE    1#define FALSE   0#define RECOVER_DUPACK  1#define RECOVER_TIMEOUT 2#define RECOVER_QUENCH  3/* TCP Fack */class FackTcpAgent : public TcpAgent { public:	FackTcpAgent();	virtual ~FackTcpAgent();	virtual void recv(Packet *pkt, Handler*);	virtual void timeout(int tno);	virtual void opencwnd();	virtual int window();	void oldack (Packet* pkt);	int maxsack (Packet* pkt); 	void plot();	void reset();	virtual void send_much(int force, int reason, int maxburst = 0);	virtual void recv_newack_helper(Packet* pkt); protected:	u_char timeout_;	/* flag: sent pkt from timeout; */	u_char fastrecov_;	/* flag: in fast recovery */	double wintrim_;	double wintrimmult_;	int rampdown_;	int fack_;	int retran_data_;	int ss_div4_;	ScoreBoard* scb_;	static const int SBSIZE=1024;};#endif