Реферат: Алгоритми маршрутизації в мережах

* 30 seconds after the previous one was

* secheduled, instead of 30 seconds after

* the previous update was finished.

* Even if we just started after discovering

* a 2nd interface or were otherwise delayed,

* pick a 30-second aniversary of the

* original broadcast time.

*/

n = 1 + (0-t2.tv_sec)/SUPPLY_INTERVAL;

next_bcast.tv_sec += n*SUPPLY_INTERVAL;

continue;

}

if (timercmp(&t2, &wtime, <))

wtime = t2;

}

/* If we need a flash update, either do it now or

* set the delay to end when it is time.

*

* If we are within MIN_WAITTIME seconds of a full update,

* do not bother.

*/

if (need_flash

&& supplier

&& no_flash.tv_sec+MIN_WAITTIME < next_bcast.tv_sec) {

/* accurate to the millisecond */

if (!timercmp(&no_flash, &now, >))

rip_bcast(1);

timevalsub(&t2, &no_flash, &now);

if (timercmp(&t2, &wtime, <))