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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.
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /cvsroot/nsnam/ns-2/adc/ms-adc.cc,v 1.7 2005/08/26 05:05:27 tomh Exp $";
#endif
//Measured Sum Admission control
#include "adc.h"
#include <stdlib.h>
class MS_ADC : public ADC {
public:
MS_ADC();
void rej_action(int, double,int);
protected:
int admit_flow(int,double,int);
inline virtual double get_rate(int /*cl*/, double r,int /*b*/)
{ return r ; };
double utilization_;
};
MS_ADC::MS_ADC()
{
bind("utilization_",&utilization_);
type_ = new char[5];
strcpy(type_, "MSAC");
}
void MS_ADC::rej_action(int cl,double r,int b)
{
double rate = get_rate(cl,r,b);
est_[cl]->change_avload(-rate);
}
int MS_ADC::admit_flow(int cl,double r,int b)
{
double rate = get_rate(cl,r,b);
if (rate+est_[cl]->avload() < utilization_* bandwidth_) {
est_[cl]->change_avload(rate);
return 1;
}
return 0;
}
static class MS_ADCClass : public TclClass {
public:
MS_ADCClass() : TclClass("ADC/MS") {}
TclObject* create(int,const char*const*) {
return (new MS_ADC());
}
}class_ms_adc;
/* a measured sum algorithm that uses peak rather than token rate
*/
class MSPK_ADC : public MS_ADC {
public:
MSPK_ADC() { };
protected:
inline virtual double get_rate(int cl,double r,int b){
return(peak_rate(cl,r,b));};
};
static class MSPK_ADCClass : public TclClass {
public:
MSPK_ADCClass() : TclClass("ADC/MSPK") {}
TclObject* create(int,const char*const*) {
return (new MSPK_ADC());
}
} class_mspk_adc;
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