trafgen.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) Xerox Corporation 1997. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linking this file statically or dynamically with other modules is making
- * a combined work based on this file. Thus, the terms and conditions of
- * the GNU General Public License cover the whole combination.
- *
- * In addition, as a special exception, the copyright holders of this file
- * give you permission to combine this file with free software programs or
- * libraries that are released under the GNU LGPL and with code included in
- * the standard release of ns-2 under the Apache 2.0 license or under
- * otherwise-compatible licenses with advertising requirements (or modified
- * versions of such code, with unchanged license). You may copy and
- * distribute such a system following the terms of the GNU GPL for this
- * file and the licenses of the other code concerned, provided that you
- * include the source code of that other code when and as the GNU GPL
- * requires distribution of source code.
- *
- * Note that people who make modified versions of this file are not
- * obligated to grant this special exception for their modified versions;
- * it is their choice whether to do so. The GNU General Public License
- * gives permission to release a modified version without this exception;
- * this exception also makes it possible to release a modified version
- * which carries forward this exception.
- *
- * Changes by the Daedalus group, http://daedalus.cs.berkeley.edu
- * Add Application interface
- *
- * @(#) $Header: /cvsroot/nsnam/ns-2/tools/trafgen.h,v 1.7 2005/08/26 05:05:31 tomh Exp $ (Xerox)
- */
- #ifndef ns_trafgen_h
- #define ns_trafgen_h
- #include "app.h"
- #include "timer-handler.h"
- class TrafficGenerator;
- class TrafficTimer : public TimerHandler {
- public:
- TrafficTimer(TrafficGenerator* tg) : tgen_(tg) {}
- protected:
- void expire(Event*);
- TrafficGenerator* tgen_;
- };
- /* abstract class for traffic generation modules. derived classes
- * must define the next_interval() function. the traffic generation
- * module schedules an event for a UDP_Agent when it is time to
- * generate a new packet. it passes the packet size with the event
- * (to accommodate traffic generation modules that may not use fixed
- * size packets).
- */
- /* abstract class for traffic generation modules. derived classes
- * must define the next_interva() function that is invoked by
- * UDP_Agent. This function returns the time to the next packet
- * is generated and sets the size of the packet (which is passed
- * by reference). The init() method is called from the start()
- * method of the UDP_Agent. It can do any one-time initialization
- * needed by the traffic generation process.
- */
- class TrafficGenerator : public Application {
- public:
- TrafficGenerator();
- virtual double next_interval(int &) = 0;
- virtual void init() {}
- virtual double interval() { return 0; }
- virtual int on() { return 0; }
- virtual void timeout();
- virtual void recv() {}
- virtual void resume() {}
- protected:
- virtual void start();
- virtual void stop();
- double nextPkttime_;
- int size_;
- int running_;
- TrafficTimer timer_;
- };
- #endif