/*===========================================================================*
* set_timer *
*===========================================================================*/
void set_timer(timer_t *tp, int ticks, tmr_func_t watchdog, int arg)
{
int r;
clock_t now, prev_time = 0, next_time;
if ((r = getuptime(&now)) != OK)
panic("set_timer: couldn't get uptime");
/* Set timer argument and add timer to the list. */
tmr_arg(tp)->ta_int = arg;
prev_time = tmrs_settimer(&timers, tp, now+ticks, watchdog, &next_time);
/* Reschedule our synchronous alarm if necessary. */
if (expiring == 0 && (! prev_time || prev_time > next_time)) {
if (sys_setalarm(next_time, 1) != OK)
panic("set_timer: couldn't set alarm");
}
}
/*
* Set the timer 'tp' to trigger 'ticks' clock ticks in the future. When it
* triggers, call function 'watchdog' with argument 'arg'. The given timer
* object must have been initialized with init_timer(3) already. The given
* number of ticks must be between 0 and TMRDIFF_MAX inclusive. A ticks value
* of zero will cause the alarm to trigger on the next clock tick. If the
* timer was already set, it will be canceled first.
*/
void
set_timer(minix_timer_t *tp, clock_t ticks, tmr_func_t watchdog, int arg)
{
clock_t prev_time, next_time;
int r, had_timers;
if (ticks > TMRDIFF_MAX)
panic("set_timer: ticks value too large: %u", (int)ticks);
/* Add the timer to the list. */
had_timers = tmrs_settimer(&timers, tp, getticks() + ticks, watchdog,
arg, &prev_time, &next_time);
/* Reschedule our synchronous alarm if necessary. */
if (!expiring && (!had_timers || next_time != prev_time)) {
if ((r = sys_setalarm(next_time, TRUE /*abs_time*/)) != OK)
panic("set_timer: couldn't set alarm: %d", r);
}
}
/*===========================================================================*
* pm_set_timer *
*===========================================================================*/
PUBLIC void pm_set_timer(timer_t *tp, int ticks, tmr_func_t watchdog, int arg)
{
int r;
clock_t now, prev_time = 0, next_time;
if ((r = getuptime(&now)) != OK)
panic(__FILE__, "PM couldn't get uptime", NO_NUM);
/* Set timer argument and add timer to the list. */
tmr_arg(tp)->ta_int = arg;
prev_time = tmrs_settimer(&pm_timers,tp,now+ticks,watchdog,&next_time);
/* Reschedule our synchronous alarm if necessary. */
if (! prev_time || prev_time > next_time) {
if (sys_setalarm(next_time, 1) != OK)
panic(__FILE__, "PM set timer couldn't set alarm.", NO_NUM);
}
return;
}
