#include <EthernetCutthroughSink.h>

Inheritance diagram for inet::EthernetCutthroughSink:

Public Member Functions
virtual bool	canPushPacket (Packet packet, cGate gate) const override
	Returns true if the given packet can be pushed at the given gate into the packet sink without raising an error. More...

virtual void	pushPacketStart (Packet packet, cGate gate, bps datarate) override
	Starts pushing the packet into the packet sink at the given gate. More...

virtual void	pushPacketEnd (Packet packet, cGate gate) override
	Ends pushing the packet into the packet sink at the given gate. More...

virtual void	handlePushPacketProcessed (Packet packet, cGate gate, bool successful) override
	Notifies about the completion of the packet processing for a packet that was pushed earlier independently whether the packet is passed or streamed. More...

Public Member Functions inherited from inet::PacketStreamer
virtual	~PacketStreamer ()

virtual IPassivePacketSink *	getConsumer (cGate *gate) override
	Returns the passive packet sink where packets are pushed or nullptr if the connected module doesn't implement the interface. More...

virtual IPassivePacketSource *	getProvider (cGate *gate) override
	Returns the passive packet source from where packets are pulled or nullptr if the connected module doesn't implement the interface. More...

virtual bool	supportsPacketPushing (cGate *gate) const override
	Returns true if the processor supports pushing packets at the given gate. More...

virtual bool	supportsPacketPulling (cGate *gate) const override
	Returns true if the processor supports pulling packets at the given gate. More...

virtual bool	supportsPacketPassing (cGate *gate) const override
	Returns true if the processor supports passing packets as a whole at the given gate. More...

virtual bool	supportsPacketStreaming (cGate *gate) const override
	Returns true if the processor supports streaming packets at the given gate. More...

virtual bool	canPushSomePacket (cGate *gate) const override
	Returns false if the packet sink is full at the given gate and no more packets can be pushed into it without raising an error. More...

virtual void	pushPacket (Packet packet, cGate gate) override
	Pushes the packet into the packet sink at the given gate. More...

virtual void	pushPacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength=b(0)) override
	Progresses pushing the packet into the packet sink at the given gate. More...

virtual void	handleCanPushPacketChanged (cGate *gate) override
	Notifies about a change in the possibility of pushing some packet into the passive packet sink at the given gate. More...

virtual bool	canPullSomePacket (cGate *gate) const override
	Returns false if the packet source is empty at the given gate and no more packets can be pulled from it without raising an error. More...

virtual Packet *	canPullPacket (cGate *gate) const override
	Returns the packet that can be pulled at the given gate. More...

virtual Packet *	pullPacket (cGate *gate) override
	Pulls the packet from the packet source at the given gate. More...

virtual Packet *	pullPacketStart (cGate *gate, bps datarate) override
	Starts pulling the packet from the packet source at the given gate. More...

virtual Packet *	pullPacketEnd (cGate *gate) override
	Ends pulling the packet from the packet source at the given gate. More...

virtual Packet *	pullPacketProgress (cGate *gate, bps datarate, b position, b extraProcessableLength) override
	Progresses pulling the packet from the packet source at the given gate. More...

virtual void	handleCanPullPacketChanged (cGate *gate) override
	Notifies about a change in the possibility of pulling some packet from the passive packet source at the given gate. More...

virtual void	handlePullPacketProcessed (Packet packet, cGate gate, bool successful) override
	Notifies about the completion of the packet processing for a packet that was pulled earlier independently whether the packet is passed or streamed. More...

Public Member Functions inherited from inet::ClockUserModuleMixin< PacketProcessorBase >
virtual void	scheduleClockEventAt (clocktime_t time, ClockEvent *msg)

virtual void	scheduleClockEventAfter (clocktime_t delay, ClockEvent *msg)

virtual cMessage *	cancelClockEvent (ClockEvent *msg)

virtual void	cancelAndDeleteClockEvent (ClockEvent *msg)

virtual void	rescheduleClockEventAt (clocktime_t time, ClockEvent *msg)

virtual void	rescheduleClockEventAfter (clocktime_t time, ClockEvent *msg)

virtual clocktime_t	computeClockTimeFromSimTime (simtime_t time) const

virtual simtime_t	computeSimTimeFromClockTime (clocktime_t time) const

virtual clocktime_t	getClockTime () const

virtual clocktime_t	getArrivalClockTime (ClockEvent *msg) const

Public Member Functions inherited from inet::queueing::PacketProcessorBase
virtual bool	supportsPacketSending (cGate *gate) const override
	Returns true if the processor supports sending packets at the given gate. More...

virtual const char *	resolveDirective (char directive) const override

Public Member Functions inherited from inet::queueing::IPacketProcessor
virtual	~IPacketProcessor ()

Public Member Functions inherited from inet::queueing::IPassivePacketSink
virtual	~IPassivePacketSink ()

Public Member Functions inherited from inet::queueing::IActivePacketSink
virtual	~IActivePacketSink ()

Public Member Functions inherited from inet::queueing::IPassivePacketSource
virtual	~IPassivePacketSource ()

Public Member Functions inherited from inet::queueing::IActivePacketSource
virtual	~IActivePacketSource ()

Protected Member Functions
virtual void	initialize (int stage) override

Protected Member Functions inherited from inet::PacketStreamer
virtual void	handleMessage (cMessage *message) override

virtual bool	isStreaming () const

virtual void	endStreaming ()

Protected Member Functions inherited from inet::queueing::PacketProcessorBase
virtual int	numInitStages () const override

virtual void	refreshDisplay () const override

virtual void	handlePacketProcessed (Packet *packet)

virtual void	checkPacketOperationSupport (cGate *gate) const

virtual void	checkPacketOperationSupport (cGate startGate, cGate endGate) const

virtual void	animate (Packet packet, cGate gate, const SendOptions &sendOptions, Action action) const

virtual void	animatePacket (Packet packet, cGate gate, Action action) const

virtual void	animatePacketStart (Packet packet, cGate gate, bps datarate, long transmissionId, Action action) const

virtual void	animatePacketStart (Packet packet, cGate gate, bps datarate, const SendOptions &sendOptions, Action action) const

virtual void	animatePacketEnd (Packet packet, cGate gate, long transmissionId, Action action) const

virtual void	animatePacketEnd (Packet packet, cGate gate, const SendOptions &sendOptions, Action action) const

virtual void	animatePacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength, long transmissionId, Action action) const

virtual void	animatePacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength, const SendOptions &sendOptions, Action action) const

virtual void	pushOrSendPacket (Packet packet, cGate gate, IPassivePacketSink *consumer)

virtual void	pushOrSendPacketStart (Packet packet, cGate gate, IPassivePacketSink *consumer, bps datarate, int transmissionId)

virtual void	pushOrSendPacketEnd (Packet packet, cGate gate, IPassivePacketSink *consumer, int transmissionId)

virtual void	pushOrSendPacketProgress (Packet packet, cGate gate, IPassivePacketSink *consumer, bps datarate, b position, b extraProcessableLength, int transmissionId)

virtual void	animatePush (Packet packet, cGate gate, const SendOptions &sendOptions) const

virtual void	animatePushPacket (Packet packet, cGate gate) const

virtual void	animatePushPacketStart (Packet packet, cGate gate, bps datarate, long transmissionId) const

virtual void	animatePushPacketStart (Packet packet, cGate gate, bps datarate, const SendOptions &sendOptions) const

virtual void	animatePushPacketEnd (Packet packet, cGate gate, long transmissionId) const

virtual void	animatePushPacketEnd (Packet packet, cGate gate, const SendOptions &sendOptions) const

virtual void	animatePushPacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength, long transmissionId) const

virtual void	animatePushPacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength, const SendOptions &sendOptions) const

virtual void	animatePull (Packet packet, cGate gate, const SendOptions &sendOptions) const

virtual void	animatePullPacket (Packet packet, cGate gate) const

virtual void	animatePullPacketStart (Packet packet, cGate gate, bps datarate, long transmissionId) const

virtual void	animatePullPacketStart (Packet packet, cGate gate, bps datarate, const SendOptions &sendOptions) const

virtual void	animatePullPacketEnd (Packet packet, cGate gate, long transmissionId) const

virtual void	animatePullPacketEnd (Packet packet, cGate gate, const SendOptions &sendOptions) const

virtual void	animatePullPacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength, long transmissionId) const

virtual void	animatePullPacketProgress (Packet packet, cGate gate, bps datarate, b position, b extraProcessableLength, const SendOptions &sendOptions) const

virtual void	dropPacket (Packet *packet, PacketDropReason reason, int limit=-1)

virtual void	updateDisplayString () const

Protected Attributes
cGate *	cutthroughInputGate = nullptr

IActivePacketSource *	cutthroughProducer = nullptr

bool	cutthrough = false

Protected Attributes inherited from inet::PacketStreamer
bps	datarate = bps(NaN)

cGate *	inputGate = nullptr

IActivePacketSource *	producer = nullptr

IPassivePacketSource *	provider = nullptr

cGate *	outputGate = nullptr

IPassivePacketSink *	consumer = nullptr

IActivePacketSink *	collector = nullptr

bps	streamDatarate = bps(NaN)

Packet *	streamedPacket = nullptr

ClockEvent *	endStreamingTimer = nullptr

Protected Attributes inherited from inet::queueing::PacketProcessorBase
const char *	displayStringTextFormat = nullptr

int	numProcessedPackets = -1

b	processedTotalLength = b(-1)

Additional Inherited Members
Protected Types inherited from inet::queueing::PacketProcessorBase
enum	Action { PUSH, PULL }

Member Function Documentation

◆ canPushPacket()

bool inet::EthernetCutthroughSink::canPushPacket	(	Packet *	packet,
		cGate *	gate
	)		const

overridevirtual

Returns true if the given packet can be pushed at the given gate into the packet sink without raising an error.

The packet must not be nullptr. The gate must be a valid gate of this module and it must support pushing packets.

Reimplemented from inet::PacketStreamer.

 {
     if (gate == cutthroughInputGate)
         return !isStreaming() && !provider->canPullSomePacket(inputGate->getPathStartGate()) && consumer->canPushPacket(packet, outputGate->getPathEndGate());
     else
         return PacketStreamer::canPushPacket(packet, gate);
 }

◆ handlePushPacketProcessed()

void inet::EthernetCutthroughSink::handlePushPacketProcessed	(	Packet *	packet,
		cGate *	gate,
		bool	successful
	)

overridevirtual

Notifies about the completion of the packet processing for a packet that was pushed earlier independently whether the packet is passed or streamed.

This method is called, for example, when a previously pushed packet is failed to be processed successfully. It allows the source to retry the operation.

The gate parameter must be a valid gate of this module. The packet must not be nullptr.

Reimplemented from inet::PacketStreamer.

 {
     Enter_Method("handlePushPacketProcessed");
     if (!cutthrough && producer != nullptr)
         producer->handlePushPacketProcessed(packet, inputGate->getPathStartGate(), successful);
     else if (cutthrough && cutthroughProducer != nullptr)
         cutthroughProducer->handlePushPacketProcessed(packet, cutthroughInputGate->getPathStartGate(), successful);
 }

◆ initialize()

void inet::EthernetCutthroughSink::initialize ( int stage )

overrideprotectedvirtual

Reimplemented from inet::PacketStreamer.

 {
     PacketStreamer::initialize(stage);
     if (stage == INITSTAGE_LOCAL) {
         cutthroughInputGate = gate("cutthroughIn");
         cutthroughProducer = findConnectedModule<IActivePacketSource>(cutthroughInputGate);
     }
 }

◆ pushPacketEnd()

void inet::EthernetCutthroughSink::pushPacketEnd	(	Packet *	packet,
		cGate *	gate
	)

overridevirtual

Ends pushing the packet into the packet sink at the given gate.

This is a packet streaming operation. The onwership of the packet is transferred to the sink.

Packet streaming can be started with any of the streaming operations, and ends when the streaming position plus the extra processable packet length equals to the total packet length.

This method is called, for example, when a preemption supporting server module ends streaming a packet to the sink.

The sink must not be full at the gate and no other packet streaming can be in progress. The packet must not be nullptr. The gate must be a valid gate of this module and it must support pushing and streaming packets.

Reimplemented from inet::PacketStreamer.

 {
     if (gate == cutthroughInputGate) {
         Enter_Method("pushPacketEnd");
         take(packet);
         delete streamedPacket;
         streamedPacket = packet;
         EV_INFO << "Ending streaming packet " << streamedPacket->getName() << "." << std::endl;
         pushOrSendPacketEnd(streamedPacket, outputGate, consumer, streamedPacket->getTransmissionId());
         streamedPacket = nullptr;
         updateDisplayString();
     }
     else
         PacketStreamer::pushPacketEnd(packet, gate);
 }

◆ pushPacketStart()

void inet::EthernetCutthroughSink::pushPacketStart	(	Packet *	packet,
		cGate *	gate,
		bps	datarate
	)

overridevirtual

Starts pushing the packet into the packet sink at the given gate.

This is a packet streaming operation. The onwership of the packet is transferred to the sink.

Packet streaming can be started with any of the streaming operations, and ends when the streaming position plus the extra processable packet length equals to the total packet length.

This method is called, for example, when a preemption supporting server module starts streaming a packet to the sink.

The sink must not be full at the gate and no other packet streaming can be in progress. The packet must not be nullptr. The gate must be a valid gate of this module and it must support pushing and streaming packets.

Reimplemented from inet::PacketStreamer.

 {
     if (gate == cutthroughInputGate) {
         Enter_Method("pushPacketStart");
         take(packet);
         delete streamedPacket;
         streamedPacket = packet;
         cutthrough = true;
         EV_INFO << "Starting streaming packet " << streamedPacket->getName() << "." << std::endl;
         pushOrSendPacketStart(streamedPacket, outputGate, consumer, datarate, streamedPacket->getTransmissionId());
         streamedPacket = nullptr;
         updateDisplayString();
     }
     else {
         cutthrough = false;
         PacketStreamer::pushPacketStart(packet, gate, datarate);
     }
 }

Member Data Documentation

◆ cutthrough

bool inet::EthernetCutthroughSink::cutthrough = false

protected

Referenced by handlePushPacketProcessed(), and pushPacketStart().

◆ cutthroughInputGate

cGate* inet::EthernetCutthroughSink::cutthroughInputGate = nullptr

protected

Referenced by canPushPacket(), handlePushPacketProcessed(), initialize(), pushPacketEnd(), and pushPacketStart().

◆ cutthroughProducer

IActivePacketSource* inet::EthernetCutthroughSink::cutthroughProducer = nullptr

protected

Referenced by handlePushPacketProcessed(), and initialize().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Member Function Documentation

◆ canPushPacket()

◆ handlePushPacketProcessed()

◆ initialize()

◆ pushPacketEnd()

◆ pushPacketStart()

Member Data Documentation

◆ cutthrough

◆ cutthroughInputGate

◆ cutthroughProducer