inet::AlgorithmicDropperBase Class Reference

Base class for algorithmic droppers (RED, DropTail, etc.). More...

#include <AlgorithmicDropperBase.h>

Inheritance diagram for inet::AlgorithmicDropperBase:

Public Member Functions
	AlgorithmicDropperBase ()
virtual	~AlgorithmicDropperBase ()
Public Member Functions inherited from inet::IQueueAccess
virtual	~IQueueAccess ()

Protected Member Functions
virtual void	initialize () override
virtual void	handleMessage (cMessage *msg) override
virtual bool	shouldDrop (cPacket *packet)=0
virtual void	dropPacket (cPacket *packet)
virtual void	sendOut (cPacket *packet)
virtual int	getLength () const override
	Returns the number of frames in the queue. More...
virtual int	getByteLength () const override
	Returns the number of bytes in the queue. More...

Protected Attributes
int	numGates
std::vector< IQueueAccess * >	outQueues
std::set< IQueueAccess * >	outQueueSet

Detailed Description

Base class for algorithmic droppers (RED, DropTail, etc.).

Constructor & Destructor Documentation

inet::AlgorithmicDropperBase::AlgorithmicDropperBase ( )

inline

: numGates(0) {};

virtual inet::AlgorithmicDropperBase::~AlgorithmicDropperBase ( )

inlinevirtual

{};

Member Function Documentation

void inet::AlgorithmicDropperBase::dropPacket ( cPacket *  packet )

protectedvirtual

Referenced by handleMessage().

{
    // TODO statistics
    delete packet;
}

int inet::AlgorithmicDropperBase::getByteLength ( ) const

overrideprotectedvirtual

Returns the number of bytes in the queue.

Implements inet::IQueueAccess.

Referenced by inet::ThresholdDropper::shouldDrop().

{
    int len = 0;
    for (const auto & elem : outQueueSet)
        len += (elem)->getByteLength();
    return len;
}

int inet::AlgorithmicDropperBase::getLength ( ) const

overrideprotectedvirtual

Returns the number of frames in the queue.

Implements inet::IQueueAccess.

Referenced by inet::REDDropper::sendOut(), inet::ThresholdDropper::shouldDrop(), and inet::REDDropper::shouldDrop().

{
    int len = 0;
    for (const auto & elem : outQueueSet)
        len += (elem)->getLength();
    return len;
}

void inet::AlgorithmicDropperBase::handleMessage ( cMessage *  msg )

overrideprotectedvirtual

{
    cPacket *packet = check_and_cast<cPacket *>(msg);
    if (shouldDrop(packet))
        dropPacket(packet);
    else
        sendOut(packet);
}

void inet::AlgorithmicDropperBase::initialize ( )

overrideprotectedvirtual

Reimplemented in inet::REDDropper, and inet::ThresholdDropper.

Referenced by inet::ThresholdDropper::initialize(), and inet::REDDropper::initialize().

{
    numGates = gateSize("out");
    for (int i = 0; i < numGates; ++i) {
        cGate *outGate = gate("out", i);
        cGate *connectedGate = outGate->getPathEndGate();
        if (!connectedGate)
            throw cRuntimeError("ThresholdDropper out gate %d is not connected", i);
        IQueueAccess *outModule = dynamic_cast<IQueueAccess *>(connectedGate->getOwnerModule());
        if (!outModule)
            throw cRuntimeError("ThresholdDropper out gate %d should be connected a simple module implementing IQueueAccess", i);
        outQueues.push_back(outModule);
        outQueueSet.insert(outModule);
    }
}

void inet::AlgorithmicDropperBase::sendOut ( cPacket *  packet )

protectedvirtual

Reimplemented in inet::REDDropper.

Referenced by handleMessage(), and inet::REDDropper::sendOut().

{
    int index = packet->getArrivalGate()->getIndex();
    send(packet, "out", index);
}

virtual bool inet::AlgorithmicDropperBase::shouldDrop ( cPacket *  packet )

protectedpure virtual

Implemented in inet::REDDropper, and inet::ThresholdDropper.

Referenced by handleMessage().

Member Data Documentation

int inet::AlgorithmicDropperBase::numGates

protected

Referenced by initialize(), inet::REDDropper::initialize(), and inet::REDDropper::shouldDrop().

std::vector<IQueueAccess *> inet::AlgorithmicDropperBase::outQueues

protected

Referenced by initialize().

std::set<IQueueAccess *> inet::AlgorithmicDropperBase::outQueueSet

protected

Referenced by getByteLength(), getLength(), and initialize().

---

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

• AlgorithmicDropperBase.h
• AlgorithmicDropperBase.cc