acto-adc.cc

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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.
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 * 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
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 * General Public License for more details.
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 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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#ifndef lint
static const char rcsid[] =
    "@(#) $Header: /nfs/jade/vint/CVSROOT/ns-2/adc/acto-adc.cc,v 1.7 2005/08/26 05:05:27 tomh Exp $";
#endif


//Acceptance region Tangent at Origin Admission Control

#include "adc.h"
#include <stdlib.h>
#include <math.h>

class ACTO_ADC : public ADC {
public:
    ACTO_ADC();
    void teardown_action(int,double,int);
protected:
    int admit_flow(int,double,int);
    int rejected_; 
    double s_;
};

ACTO_ADC::ACTO_ADC() : rejected_(0)
{
    bind("s_", &s_);
    type_ = new char[5];
    strcpy(type_, "ACTO");

}


int ACTO_ADC::admit_flow(int cl,double r,int b)
{
    double p=peak_rate(cl,r,b);
    if (backoff_) {
        if (rejected_)
            return 0;
    }
    
    if (exp(p*s_)*est_[cl]->avload() <= bandwidth_) {
        if (dobump_) {
            est_[cl]->change_avload(p);
        }
        return 1;
    }
    else {
        rejected_=1;
        return 0;
    }
}

void ACTO_ADC::teardown_action(int /*cl*/,double /*r*/,int /*b*/)
{
    rejected_=0;
}

static class ACTO_ADCClass : public TclClass {
    public :
    ACTO_ADCClass() : TclClass("ADC/ACTO") {}
    TclObject* create(int,const char*const*) {
        return (new ACTO_ADC());
    }
}class_acto_adc;

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