inet::ieee80211::RecipientQosAckPolicy Class Reference

#include <RecipientQosAckPolicy.h>

Inheritance diagram for inet::ieee80211::RecipientQosAckPolicy:

Public Member Functions
virtual bool	isAckNeeded (const Ptr< const Ieee80211DataOrMgmtHeader > &header) const override
virtual bool	isBlockAckNeeded (const Ptr< const Ieee80211BlockAckReq > &blockAckReq, RecipientBlockAckAgreement *agreement) const override
virtual simtime_t	computeAckDurationField (Packet *packet, const Ptr< const Ieee80211DataOrMgmtHeader > &header) const override
virtual simtime_t	computeBasicBlockAckDurationField (Packet *packet, const Ptr< const Ieee80211BasicBlockAckReq > &basicBlockAckReq) const override
Public Member Functions inherited from inet::ieee80211::IRecipientAckPolicy
virtual	~IRecipientAckPolicy ()
Public Member Functions inherited from inet::ieee80211::IRecipientQosAckPolicy
virtual	~IRecipientQosAckPolicy ()

Protected Member Functions
virtual int	numInitStages () const override
virtual void	initialize (int stage) override
simtime_t	computeBasicBlockAckDuration (Packet *packet, const Ptr< const Ieee80211BlockAckReq > &blockAckReq) const
simtime_t	computeAckDuration (Packet *packet, const Ptr< const Ieee80211DataOrMgmtHeader > &dataOrMgmtHeader) const
Protected Member Functions inherited from inet::ieee80211::ModeSetListener
virtual void	receiveSignal (cComponent *source, simsignal_t signalID, cObject *obj, cObject *details) override

Protected Attributes
IQosRateSelection *	rateSelection = nullptr
Protected Attributes inherited from inet::ieee80211::ModeSetListener
physicallayer::Ieee80211ModeSet *	modeSet = nullptr

Member Function Documentation

computeAckDuration()

simtime_t inet::ieee80211::RecipientQosAckPolicy::computeAckDuration ( Packet *  packet, const Ptr< const Ieee80211DataOrMgmtHeader > &  dataOrMgmtHeader  ) const

protected

{
    return rateSelection->computeResponseAckFrameMode(packet, dataOrMgmtHeader)->getDuration(LENGTH_ACK);
}

Referenced by computeAckDurationField().

computeAckDurationField()

simtime_t inet::ieee80211::RecipientQosAckPolicy::computeAckDurationField ( Packet *  packet, const Ptr< const Ieee80211DataOrMgmtHeader > &  header  ) const

overridevirtual

Implements inet::ieee80211::IRecipientAckPolicy.

{
    simtime_t duration = header->getDurationField() - modeSet->getSifsTime() - computeAckDuration(packet, header);
    return duration < 0 ? 0 : duration;
}

computeBasicBlockAckDuration()

simtime_t inet::ieee80211::RecipientQosAckPolicy::computeBasicBlockAckDuration ( Packet *  packet, const Ptr< const Ieee80211BlockAckReq > &  blockAckReq  ) const

protected

{
    return rateSelection->computeResponseBlockAckFrameMode(packet, blockAckReq)->getDuration(LENGTH_BASIC_BLOCKACK);
}

Referenced by computeBasicBlockAckDurationField().

computeBasicBlockAckDurationField()

simtime_t inet::ieee80211::RecipientQosAckPolicy::computeBasicBlockAckDurationField ( Packet *  packet, const Ptr< const Ieee80211BasicBlockAckReq > &  basicBlockAckReq  ) const

overridevirtual

Implements inet::ieee80211::IRecipientQosAckPolicy.

{
    return basicBlockAckReq->getDurationField() - modeSet->getSifsTime() - computeBasicBlockAckDuration(packet, basicBlockAckReq);
}

initialize()

void inet::ieee80211::RecipientQosAckPolicy::initialize ( int  stage )

overrideprotectedvirtual

Reimplemented from inet::ieee80211::ModeSetListener.

{
    ModeSetListener::initialize(stage);
    if (stage == INITSTAGE_LOCAL) {
        rateSelection = check_and_cast<IQosRateSelection *>(getModuleByPath(par("rateSelectionModule")));
    }
}

isAckNeeded()

bool inet::ieee80211::RecipientQosAckPolicy::isAckNeeded ( const Ptr< const Ieee80211DataOrMgmtHeader > &  header ) const

overridevirtual

Implements inet::ieee80211::IRecipientAckPolicy.

{
    // TODO add mgmt frame NoAck check
    if (auto dataHeader = dynamicPtrCast<const Ieee80211DataHeader>(header))
        if (dataHeader->getAckPolicy() != NORMAL_ACK)
            return false;
    return !header->getReceiverAddress().isMulticast();
}

isBlockAckNeeded()

bool inet::ieee80211::RecipientQosAckPolicy::isBlockAckNeeded ( const Ptr< const Ieee80211BlockAckReq > &  blockAckReq, RecipientBlockAckAgreement *  agreement  ) const

overridevirtual

Implements inet::ieee80211::IRecipientQosAckPolicy.

{
    if (dynamicPtrCast<const Ieee80211BasicBlockAckReq>(blockAckReq)) {
        return agreement != nullptr;
        // TODO The Basic BlockAckReq frame shall be discarded if all MSDUs referenced by this
        // frame have been discarded from the transmit buffer due to expiry of their lifetime limit.
    }
    else
        throw cRuntimeError("Unsupported BlockAckReq");
}

numInitStages()

virtual int inet::ieee80211::RecipientQosAckPolicy::numInitStages ( ) const

inlineoverrideprotectedvirtual

Reimplemented from inet::ieee80211::ModeSetListener.

{ return NUM_INIT_STAGES; }

Member Data Documentation

rateSelection

IQosRateSelection* inet::ieee80211::RecipientQosAckPolicy::rateSelection = nullptr

protected

Referenced by computeAckDuration(), computeBasicBlockAckDuration(), and initialize().

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

• RecipientQosAckPolicy.h
• RecipientQosAckPolicy.cc