Function csl3HandleFrame

Control/L3StateMachine.cpp:580–625

}

static void csl3HandleFrame(const GSM::L3Frame *frame, L3LogicalChannel *lch)
{
	L3Message *l3msg = NULL;
	// The primitives apply directly to the L3LogicalChannel and a specific SAPI, rather than to the MMContext.
	if (! checkPrimitive(frame->primitive(), lch, frame->getSAPI())) { return; }
	// Everything else runs on the MMContext.
	MMContext *mmchan = lch->chanGetContext(true);
	if (frame->isData()) {
		l3msg = parseL3(*frame);
		if (l3msg) {
			WATCHINFO(lch <<" received L3 message "<<*l3msg);
		} else {
			LOG(ERR) <<lch<< " received unparseable Layer3 frame "<<*frame;
			// We pass unparseable messages through to machineRunState1 to provide an error indication to
			// any state machine that uses that function, but the default machrineRunState1 eliminates them
			// so machineRunState never sees them.
		}
		bool deleteit;
		if (l3msg && handleCommonMessages(l3msg, mmchan, &deleteit)) {
			LOG(DEBUG) << "message handled by handleCommonMessagse"<<LOGVAR(l3msg);
			if (deleteit) { delete l3msg; }
			return;
		}
	}
	mmchan->mmDispatchL3Frame(frame,l3msg);
	if (l3msg) delete l3msg;
#if UNUSED
	L3Message *msg = NULL;
	try {
		// Even through parseL3 catches L3ReadError, looks to me like this can still throw SMS_READ_ERROR, so catch it:
		msg = parseL3(*frame);
	} catch (...) {
		msg = NULL;
	}
	if (msg) {
		LOG(DEBUG) <<lch <<" received L3 message "<<*msg;
		csl3HandleLCHMsg(msg,lch);
	} else {
		L3PD PD = frame->PD();
		int MTI = frame->MTI();
		LOG(ERR) << "unparseable Layer3 message with"<<LOGVAR(PD)<<LOGVAR(MTI);
		// Give the state machine a chance to do something about an error:
		lch->chanGetContext(true)->mmDispatchError(PD,MTI,lch);
	}
#endif
}

#if UNUSED
// Handle timeouts.  Return the next timeout or -1 if no timeout is pending.