inet::ieee80211::EdcaTransmitLifetimeHandler Class Reference

#include <EdcaTransmitLifetimeHandler.h>

Inheritance diagram for inet::ieee80211::EdcaTransmitLifetimeHandler:

Public Member Functions
	EdcaTransmitLifetimeHandler (simtime_t bkLifetime, simtime_t beLifetime, simtime_t viLifetime, simtime_t voLifetime)
virtual void	frameGotInProgess (const Ptr< const Ieee80211DataHeader > &header)
virtual void	frameTransmitted (const Ptr< const Ieee80211DataHeader > &header)
virtual bool	isLifetimeExpired (const Ptr< const Ieee80211DataHeader > &header)
Public Member Functions inherited from inet::ieee80211::ITransmitLifetimeHandler
virtual	~ITransmitLifetimeHandler ()

Public Attributes
simtime_t	msduLifetime [4]
std::map< SequenceNumber, simtime_t >	lifetimes

Protected Member Functions
AccessCategory	mapTidToAc (int tid)

Constructor & Destructor Documentation

EdcaTransmitLifetimeHandler()

inet::ieee80211::EdcaTransmitLifetimeHandler::EdcaTransmitLifetimeHandler	(	simtime_t	bkLifetime,
		simtime_t	beLifetime,
		simtime_t	viLifetime,
		simtime_t	voLifetime
	)

{
    msduLifetime[0] = bkLifetime;
    msduLifetime[1] = beLifetime;
    msduLifetime[2] = viLifetime;
    msduLifetime[3] = voLifetime;
}

Member Function Documentation

frameGotInProgess()

void inet::ieee80211::EdcaTransmitLifetimeHandler::frameGotInProgess ( const Ptr< const Ieee80211DataHeader > &  header )

virtual

Implements inet::ieee80211::ITransmitLifetimeHandler.

{
    if (header->getFragmentNumber() == 0)
        lifetimes[header->getSequenceNumber().get()] = simTime();
}

frameTransmitted()

void inet::ieee80211::EdcaTransmitLifetimeHandler::frameTransmitted ( const Ptr< const Ieee80211DataHeader > &  header )

virtual

Implements inet::ieee80211::ITransmitLifetimeHandler.

{
    // don't care
}

isLifetimeExpired()

bool inet::ieee80211::EdcaTransmitLifetimeHandler::isLifetimeExpired ( const Ptr< const Ieee80211DataHeader > &  header )

virtual

Implements inet::ieee80211::ITransmitLifetimeHandler.

{
    ASSERT(header->getType() == ST_DATA_WITH_QOS);
    AccessCategory ac = mapTidToAc(header->getTid());
    auto it = lifetimes.find(header->getSequenceNumber().get());
    if (it == lifetimes.end())
        throw cRuntimeError("There is no lifetime entry for frame = %s", header->getName());
    return (simTime() - it->second) >= msduLifetime[ac];
}

mapTidToAc()

AccessCategory inet::ieee80211::EdcaTransmitLifetimeHandler::mapTidToAc ( int  tid )

protected

{
    // standard static mapping (see "UP-to-AC mappings" table in the 802.11 spec.)
    switch (tid) {
        case 1: case 2: return AC_BK;
        case 0: case 3: return AC_BE;
        case 4: case 5: return AC_VI;
        case 6: case 7: return AC_VO;
        default: throw cRuntimeError("No mapping from TID=%d to AccessCategory (must be in the range 0..7)", tid);
    }
}

Referenced by isLifetimeExpired().

Member Data Documentation

lifetimes

std::map<SequenceNumber, simtime_t> inet::ieee80211::EdcaTransmitLifetimeHandler::lifetimes

Referenced by frameGotInProgess(), and isLifetimeExpired().

msduLifetime

simtime_t inet::ieee80211::EdcaTransmitLifetimeHandler::msduLifetime[4]

Referenced by EdcaTransmitLifetimeHandler(), and isLifetimeExpired().

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

• EdcaTransmitLifetimeHandler.h
• EdcaTransmitLifetimeHandler.cc