wfqclassifier.h

c＋＋编写的ns环境下关于wfq算法的仿真源代码

/*
 * Copyright (c) 1999-2000 Paolo Losi ([e-mail])
 *
 * Copyright (c) 2001-2004 Paolo Losi ([e-mail])
 *                         Alexander Sayenko ([e-mail])
 *
 * 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.
 */


#ifndef WFQ_CLASSIFIER_H
#define WFQ_CLASSIFIER_H

#include "packet.h"
#include "queue.h"

#include <map>

class WFQClass {
 public:
   WFQClass::WFQClass (unsigned int ID);

   unsigned int mID;        /* ID of a class */

   unsigned int mPackets;   /* current number of packets in a class */
   unsigned int mMaxLength; /* maximum number of packets in a class */

   unsigned int B;
   
   double mFinishTime; /* finish time of the last packet in a class */
   double mWeight;     /* weight associated with a class */
    
};


class WFQClassifier : public TclObject {
  public:
    virtual WFQClass* get_queue (Packet *p) = 0;
    virtual double get_safe_limit() { return min_weight/1000; }
  protected:
    double min_weight;
};


class WFQDefaultClassifier : public WFQClassifier {
  public:
    WFQDefaultClassifier(); 

    WFQClass* get_queue (Packet *p); // da modificare
};


class WFQAggregClassifier : public WFQClassifier {
  public:
    WFQAggregClassifier();
    ~WFQAggregClassifier ();

    virtual int command(int argc, const char*const* argv);
    WFQClass* get_queue(Packet *p); 

    std::map<unsigned int, unsigned int> mFlowToClass;
    std::map<unsigned int, WFQClass*> mWFQClasses;

};


#endif // end of WFQ_CLASSIFIER_H