bool test_alarm(void) {
const int INTERVAL = 10000;
const int ITERATIONS = 100;
void alarm_handler(struct alarm_waiter *waiter)
{
__sync_fetch_and_add((int*)waiter->data, 1);
set_awaiter_inc(waiter, INTERVAL);
set_alarm(waiter);
}
/* RKM alarm, to run the scheduler tick (not in interrupt context) and reset the
* alarm. Note that interrupts will be disabled, but this is not the same as
* interrupt context. We're a routine kmsg, which means the core is in a
* quiescent state. */
static void __ksched_tick(struct alarm_waiter *waiter)
{
/* TODO: imagine doing some accounting here */
run_scheduler();
/* Set our alarm to go off, incrementing from our last tick (instead of
* setting it relative to now, since some time has passed since the alarm
* first went off. Note, this may be now or in the past! */
set_awaiter_inc(&ksched_waiter, TIMER_TICK_USEC);
set_alarm(&per_cpu_info[core_id()].tchain, &ksched_waiter);
}
