/* -*-	Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- *//* * Copyright (c) 1996-1997 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. * * @(#) $Header: /nfs/jade/vint/CVSROOT/ns-2/link/delay.h,v 1.16 2003/04/01 01:15:01 sfloyd Exp $ (LBL) */#ifndef ns_delay_h#define ns_delay_h#include <assert.h>#include "packet.h"#include "queue.h"#include "ip.h"#include "connector.h"class LinkDelay : public Connector { public:	LinkDelay();	void recv(Packet* p, Handler*);	void send(Packet* p, Handler*);	void handle(Event* e);	double delay() { return delay_; }	inline double txtime(Packet* p) {		return (8. * hdr_cmn::access(p)->size() / bandwidth_);	}	double bandwidth() const { return bandwidth_; }	void pktintran(int src, int group); protected:	int command(int argc, const char*const* argv);	void reset();	double bandwidth_;	/* bandwidth of underlying link (bits/sec) */	double delay_;		/* line latency */	Event intr_;	int dynamic_;		/* indicates whether or not link is ~ */	double latest_time_;	/* latest scheduled packet time, for use				 *  with avoidReordering_ */	PacketQueue* itq_;	int total_[4];	int avoidReordering_;	/* indicates whether or not to avoid				 *  reordering when link bandwidth or delay 				 *  changes */};#endif