Method recvReservation

GPRS/MAC.cpp:1165–1198

See if this block the MS sent to us corresponds to a reservation, and if so, update the counters in the corresponding TBF.

// See if this block the MS sent to us corresponds to a reservation,
// and if so, update the counters in the corresponding TBF.
RLCBlockReservation::type L1UplinkReservation::recvReservation(
	RLCBSN_t bsn,	// The BSN of a received block.
	TBF**restbf,		// Return tbf specified by reservation here, just for debugging.
	RadData *prd,	// Return radio data here.
	PDCHL1FEC *ch)	// Implicit in this pointer, but easier to pass it.
{
	ScopedLock lock(mLock);	// This lock is probably no longer necessary.
	RLCBlockReservation::type result = RLCBlockReservation::None;
	RLCBlockReservation *rp = &mReservations[bsn % mReservationSize];
	*restbf = 0;
	if (rp->mrBSN == bsn) {
		result = rp->mrType;
		if (prd) { *prd = rp->mrRadData; }
		if (rp->mrTBF) {
			devassert(rp->mrType != RLCBlockReservation::ForRACH);
			TBF *rtbf = rp->mrTBF;
			GPRSLOG(1) << "recvReservation " <<rp->mrType <<LOGVAR2("ttype",rp->mrSubType)
				<<rtbf <<rtbf->mtMS <<LOGVAR(bsn) <<" "<<ch;
			*restbf = rtbf;
			rtbf->mtRecvAck(rp->mrSubType);
			switch (rp->mrType) {
			case RLCBlockReservation::ForPoll: rtbf->mtMS->msCountCcchReservations.addGood(); break;
			case RLCBlockReservation::ForRRBP: rtbf->mtMS->msCountRbbpReservations.addGood(); break;
			default: break;
			}
		} else {
			GPRSLOG(1) << "recvReservation"<<rp->mrType<<" tbf=null" <<LOGVAR(bsn)<<" "<<ch;
		}
	} else {
		//GPRSLOG(1) << "recvReservation unrecognized"<<LOGVAR(bsn)<<"\n";
	}
	clearReservation(bsn,NULL); // Be tidy.
	return result;
}

void L1UplinkReservation::dumpReservations(std::ostream&os)
{