Hi everyone,
In CTP router, I have the following questions regarding the adaptive
beaconing, please see comments inline.
void chooseAdvertiseTime() {
t = currentInterval;
t /= 2;
t += call Random.rand32() % t; * // t is within [currentInterval
/ 2, currentInterval * 3 / 2]*
tHasPassed = FALSE;
call BeaconTimer.stop();
call BeaconTimer.startOneShot(t);
}
void remainingInterval() {
uint32_t remaining = currentInterval;
remaining -= t; * //overflow if t is
within (currentInterval, currentInterval * 3 / 2]. **Will this overflow
occur? Is it desired?*
tHasPassed = TRUE;
call BeaconTimer.startOneShot(remaining);
}
*
*
event void BeaconTimer.fired() {
if (radioOn && running) {
if (!tHasPassed) { *//What does "tHasPassed"
mean? What's it's function?*
post updateRouteTask(); //always send the most up to date info
post sendBeaconTask();
dbg("RoutingTimer", "Beacon timer fired at %s\n",
sim_time_string());
remainingInterval();
}
else {
decayInterval();
}
}
}
Thanks in advance.
--
-Xiaohui Liu
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