/*
* Cancel the timer 'tp'. The timer object must have been initialized with
* init_timer(3) first. If the timer was not set before, the call is a no-op.
*/
void
cancel_timer(minix_timer_t * tp)
{
clock_t next_time, prev_time;
int r, have_timers;
if (!tmr_is_set(tp))
return;
have_timers = tmrs_clrtimer(&timers, tp, &prev_time, &next_time);
/*
* If the earliest timer has been removed, we have to set the alarm to
* the next timer, or cancel the alarm altogether if the last timer
* has been canceled.
*/
if (!expiring) {
if (!have_timers)
r = sys_setalarm(0, FALSE /*abs_time*/);
else if (prev_time != next_time)
r = sys_setalarm(next_time, TRUE /*abs_time*/);
else
r = OK;
if (r != OK)
panic("cancel_timer: couldn't set alarm: %d", r);
}
}
/*===========================================================================*
* cancel_timer *
*===========================================================================*/
void cancel_timer(timer_t *tp)
{
clock_t next_time, prev_time;
prev_time = tmrs_clrtimer(&timers, tp, &next_time);
/* If the earliest timer has been removed, we have to set the alarm to
* the next timer, or cancel the alarm altogether if the last timer
* has been cancelled (next_time will be 0 then).
*/
if (expiring == 0 && (prev_time < next_time || ! next_time)) {
if (sys_setalarm(next_time, 1) != OK)
panic("cancel_timer: couldn't set alarm");
}
}
/*===========================================================================*
* pm_cancel_timer *
*===========================================================================*/
PUBLIC void pm_cancel_timer(timer_t *tp)
{
clock_t next_time, prev_time;
prev_time = tmrs_clrtimer(&pm_timers, tp, &next_time);
/* If the earliest timer has been removed, we have to set the alarm to
* the next timer, or cancel the alarm altogether if the last timer has
* been cancelled (next_time will be 0 then).
*/
if (prev_time < next_time || ! next_time) {
if (sys_setalarm(next_time, 1) != OK)
panic(__FILE__, "PM expire timer couldn't set alarm.", NO_NUM);
}
}
