inet::ieee80211::HcfFs Class Reference

#include <HcfFs.h>

Inheritance diagram for inet::ieee80211::HcfFs:

Public Member Functions
	HcfFs ()
virtual	~HcfFs ()
virtual int	selectHcfSequence (AlternativesFs *frameSequence, FrameSequenceContext *context)
virtual int	selectDataOrManagementSequence (AlternativesFs *frameSequence, FrameSequenceContext *context)
virtual bool	isSelfCtsNeeded (OptionalFs *frameSequence, FrameSequenceContext *context)
virtual bool	hasMoreTxOps (RepeatingFs *frameSequence, FrameSequenceContext *context)
virtual bool	hasMoreTxOpsAndMulticast (RepeatingFs *frameSequence, FrameSequenceContext *context)
Public Member Functions inherited from inet::ieee80211::AlternativesFs
virtual	~AlternativesFs ()
	AlternativesFs (std::vector< IFrameSequence * > elements, std::function< int(AlternativesFs *, FrameSequenceContext *)> selector)
virtual int	getStep ()
virtual int	selectSequence (FrameSequenceContext *context)
virtual void	startSequence (FrameSequenceContext *context, int firstStep) override
virtual IFrameSequenceStep *	prepareStep (FrameSequenceContext *context) override
virtual bool	completeStep (FrameSequenceContext *context) override
virtual std::string	getHistory () override
Public Member Functions inherited from inet::ieee80211::IFrameSequence
virtual	~IFrameSequence ()

Additional Inherited Members
Protected Attributes inherited from inet::ieee80211::AlternativesFs
int	firstStep = -1
int	step = -1
int	elementIndex = -1
std::vector< IFrameSequence * >	elements
std::function< int(AlternativesFs *, FrameSequenceContext *)>	selector

Constructor & Destructor Documentation

inet::ieee80211::HcfFs::HcfFs

(

)

             :
    // G.3 EDCA and HCCA sequences
    // hcf-sequence =
    //   ( [ CTS ] 1{( Data + group [+ QoS ] ) | Management + broadcast ) +pifs} |
    //   ( [ CTS ] 1{txop-sequence} ) |
    //   (* HC only, polled TXOP delivery *)
    //   ( [ RTS CTS ] non-cf-ack-piggybacked-qos-poll-sequence )
    //   (* HC only, polled TXOP delivery *)
    //   cf-ack-piggybacked-qos-poll-sequence |
    //   (* HC only, self TXOP delivery or termination *)
    //   Data + self + null + CF-Poll + QoS;
    AlternativesFs({new SequentialFs({new OptionalFs(new SelfCtsFs(), OPTIONALFS_PREDICATE(isSelfCtsNeeded)),
                                      new RepeatingFs(new AlternativesFs({new DataFs(), new ManagementFs()}, ALTERNATIVESFS_SELECTOR(selectDataOrManagementSequence)),
                                                      REPEATINGFS_PREDICATE(hasMoreTxOpsAndMulticast))}),
                    new SequentialFs({new OptionalFs(new SelfCtsFs(), OPTIONALFS_PREDICATE(isSelfCtsNeeded)),
                                      new RepeatingFs(new TxOpFs(), REPEATINGFS_PREDICATE(hasMoreTxOps))})},
                   ALTERNATIVESFS_SELECTOR(selectHcfSequence))
{
}

virtual inet::ieee80211::HcfFs::~HcfFs ( )

inlinevirtual

{ }

Member Function Documentation

bool inet::ieee80211::HcfFs::hasMoreTxOps ( RepeatingFs *  frameSequence, FrameSequenceContext *  context  )

virtual

Referenced by hasMoreTxOpsAndMulticast(), and HcfFs().

{
    bool hasFrameToTransmit = context->getInProgressFrames()->hasInProgressFrames();
    if (hasFrameToTransmit) {
        auto nextFrameToTransmit = context->getInProgressFrames()->getFrameToTransmit();
        return frameSequence->getCount() == 0 || (!nextFrameToTransmit->getReceiverAddress().isMulticast() && context->getQoSContext()->txopProcedure->getRemaining() > 0);
    }
    return false;
}

bool inet::ieee80211::HcfFs::hasMoreTxOpsAndMulticast ( RepeatingFs *  frameSequence, FrameSequenceContext *  context  )

virtual

Referenced by HcfFs().

{
    return hasMoreTxOps(frameSequence, context) && context->getInProgressFrames()->getFrameToTransmit()->getReceiverAddress().isMulticast();
}

bool inet::ieee80211::HcfFs::isSelfCtsNeeded ( OptionalFs *  frameSequence, FrameSequenceContext *  context  )

virtual

Referenced by HcfFs().

{
    return false;
}

int inet::ieee80211::HcfFs::selectDataOrManagementSequence ( AlternativesFs *  frameSequence, FrameSequenceContext *  context  )

virtual

Referenced by HcfFs().

{
    auto frameToTransmit = context->getInProgressFrames()->getFrameToTransmit();
    if (dynamic_cast<Ieee80211DataFrame*>(frameToTransmit))
        return 0;
    else if (dynamic_cast<Ieee80211ManagementFrame*>(frameToTransmit))
        return 1;
    else
        throw cRuntimeError("frameToTransmit must be either a Data or a Management frame");
}

int inet::ieee80211::HcfFs::selectHcfSequence ( AlternativesFs *  frameSequence, FrameSequenceContext *  context  )

virtual

Referenced by HcfFs().

{
    auto frameToTransmit = context->getInProgressFrames()->getFrameToTransmit();
    return frameToTransmit->getReceiverAddress().isMulticast() ? 0 : 1;
}

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

• HcfFs.h
• HcfFs.cc