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/*
* Copyright (c) 2000-2002, by the Rector and Board of Visitors of the
* University of Virginia.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* Neither the name of the University of Virginia nor the names
* of its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
*
* Marker module for JoBS (and WTP).
*
* Authors: Constantinos Dovrolis <dovrolis@mail.eecis.udel.edu>,
* Nicolas Christin <nicolas@cs.virginia.edu>, 2000-2002
*
* $Id: marker.h,v 1.1 2003/02/02 22:18:22 xuanc Exp $
*/
#ifndef MARKER_H
#define MARKER_H
#define NO_CLASSES 4 // This number cannot be changed
// w/o modifying the code.
// This is, again, a prototype
// implementation...
#define DETERM 1 // Deterministic marker: all traffic is marked with
// given class (marker_class_)
#define STATIS 2 // Probabilistic marker: class-marking follow given
// (cumulative) distribution
class Marker: public Queue {
public:
Marker();
virtual int command(int argc, const char*const* argv);
void enque(Packet*);
Packet* deque();
double marker_arrvs_[NO_CLASSES+1]; // For monitoring purposes
protected:
int marker_type_; // Marker type
double marker_frc_[NO_CLASSES+1]; // Class-marking fractions
// (STATIS)
// marker_frc_ represent the
// *cumulative* marking distribution
int marker_class_; // Fixed class marking (DETERM)
PacketQueue *q_; // Underlying FIFO queue
int rn_seed_; // Random seed
};
#endif /* MARKER_H */
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