timewindow-est.cc
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- /*
- * 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.
- */
- #ifndef lint
- static const char rcsid[] =
- "@(#) $Header: /cvsroot/nsnam/ns-2/adc/timewindow-est.cc,v 1.7 2005/08/26 05:05:28 tomh Exp $";
- #endif
- //Time Window estimation
- #include "estimator.h"
- #include <stdlib.h>
- class TimeWindow_Est : public Estimator {
- public:
- TimeWindow_Est() :scnt(1),maxp(0){bind("T_",&T_);};
- inline void change_avload(double incr) { avload_ += incr; if (incr >0) scnt=0;}
- protected:
- void estimate();
- int scnt;
- double maxp;//maximum of previous interval
- int T_;
- };
- void TimeWindow_Est::estimate() {
- measload_ = meas_mod_->bitcnt()/period_;
- if (meas_mod_->bitcnt()/period_ >avload_)
- avload_=meas_mod_->bitcnt()/period_;
- if (maxp < meas_mod_->bitcnt()/period_)
- maxp=meas_mod_->bitcnt()/period_;
- if (scnt == T_)
- {
- scnt-=T_;
- avload_=maxp;
- maxp=0;
- }
- //printf("%f %f %fn",Scheduler::instance().clock(),avload_,meas_mod_->bitcnt()/period_);
-
- fflush(stdout);
- meas_mod_->resetbitcnt();
- scnt++;
- }
- static class TimeWindow_EstClass : public TclClass {
- public:
- TimeWindow_EstClass() : TclClass ("Est/TimeWindow") {}
- TclObject* create(int,const char*const*) {
- return (new TimeWindow_Est());
- }
- }class_timewindow_est;