/** Process any expired timers.
* Calls the functions of expired timers and removes them
* from the timer list.
* Reschedules the interval timer for the earliest expiring timer
* (if any).
*
* Should not be called from within the SIGALRM handler - set
* a flag there and call it later.
*
* @return 0 on success, error code otherwise.
*/
int process_timers(void) {
double now = time_now();
Timer *curr, *next;
for(curr = timers; curr; curr = next) {
next = curr->next;
if(curr->expiry > now) break;
if(curr->fn) curr->fn(curr->data);
}
timers = curr;
itimer_set((curr ? curr->expiry : 0));
return 0;
}
void Timer_add(Timer *timer) {
// Insert timer in list ordered by (increasing) expiry time.
Timer *prev, *curr, *next;
prev = NULL;
for(curr = timers; curr; prev = curr, curr = next) {
next = curr->next;
if(timer->expiry < curr->expiry) break;
}
if(prev) {
prev->next = timer;
} else {
timers = timer;
}
timer->next = curr;
// Set interval timer to go off for earliest expiry time.
itimer_set(timer->expiry);
}
int do_itimer (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
itimer_set();
return OK;
}
