RateEstimator Class Reference

#include <rate-estimator.h>

Collaboration diagram for RateEstimator:

[legend]List of all members.

Public Member Functions
	RateEstimator ()
	RateEstimator (double estimate)
void	estimateRate (Packet *p)
void	reset ()
Public Attributes
double	k_
double	estRate_
double	bytesArr_
Protected Attributes
int	temp_size_
double	prevTime_
double	reset_time_

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Constructor & Destructor Documentation

RateEstimator::RateEstimator (   )

Definition at line 4 of file rate-estimator.cc. References Scheduler::clock(), Scheduler::instance(), prevTime_, and reset_time_. : k_(0.1), estRate_(0.0), bytesArr_(0.0), temp_size_(0) { prevTime_ = Scheduler::instance().clock(); reset_time_ = Scheduler::instance().clock(); }

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RateEstimator::RateEstimator (  double  estimate  )

Definition at line 9 of file rate-estimator.cc. References Scheduler::clock(), estRate_, Scheduler::instance(), prevTime_, and reset_time_. : k_(0.1), bytesArr_(0.0), temp_size_(0) { prevTime_ = Scheduler::instance().clock(); reset_time_ = Scheduler::instance().clock(); estRate_ = estimate; }

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Member Function Documentation

void RateEstimator::estimateRate (  Packet *  p  )

Definition at line 16 of file rate-estimator.cc. References bytesArr_, Scheduler::clock(), estRate_, HDR_CMN, Scheduler::instance(), k_, prevTime_, hdr_cmn::size(), and temp_size_. Referenced by PushbackQueue::enque(), LoggingDataStructNode::log(), LoggingDataStruct::log(), and RateLimitStrategy::process(). { hdr_cmn* hdr = HDR_CMN(pkt); bytesArr_+= hdr->size(); int pktSize = hdr->size() << 3; /* length of the packet in bits */ double now = Scheduler::instance().clock(); double timeGap = ( now - prevTime_); if (timeGap == 0) { temp_size_ += pktSize; return; } else { pktSize+= temp_size_; temp_size_ = 0; } prevTime_ = now; estRate_ = (1 - exp(-timeGap/k_))*((double)pktSize)/timeGap + exp(-timeGap/k_)*estRate_; }

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void RateEstimator::reset (   )

Definition at line 40 of file rate-estimator.cc. References bytesArr_, Scheduler::clock(), Scheduler::instance(), and reset_time_. Referenced by RateLimitStrategy::reset(). { reset_time_ = Scheduler::instance().clock(); bytesArr_ = 0; //shoule the rate estimate be reset? // estRate_=0.0; // prevTime_= Scheduler::instance().clock(); // temp_size_=0; }

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Member Data Documentation

double RateEstimator::bytesArr_

Definition at line 11 of file rate-estimator.h. Referenced by estimateRate(), LoggingDataStructNode::log(), LoggingDataStruct::log(), and reset().

double RateEstimator::estRate_

Definition at line 10 of file rate-estimator.h. Referenced by estimateRate(), RateLimitStrategy::getArrivalRate(), RateLimitStrategy::getDropRate(), PushbackQueue::getDropRate(), PushbackQueue::getRate(), LoggingDataStructNode::log(), LoggingDataStruct::log(), RateLimitSession::merge(), RateLimitStrategy::process(), PushbackAgent::pushbackCheck(), RateEstimator(), RateLimitStrategy::restrictPacketType(), and PushbackQueue::timeout().

double RateEstimator::k_

Definition at line 9 of file rate-estimator.h. Referenced by estimateRate().

double RateEstimator::prevTime_ [protected]

Definition at line 20 of file rate-estimator.h. Referenced by estimateRate(), and RateEstimator().

double RateEstimator::reset_time_ [protected]

Definition at line 21 of file rate-estimator.h. Referenced by RateEstimator(), and reset().

int RateEstimator::temp_size_ [protected]

Definition at line 19 of file rate-estimator.h. Referenced by estimateRate().

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The documentation for this class was generated from the following files:

• rate-estimator.h
• rate-estimator.cc

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