source: trunk/minix/lib/timers/tmrs_exp.c@ 10

#include "timers.h"

/*===========================================================================*
 *                              tmrs_exptimers                               *
 *===========================================================================*/
void tmrs_exptimers(tmrs, now, new_head)
timer_t **tmrs;                         /* pointer to timers queue */
clock_t now;                            /* current time */
clock_t *new_head;
{
/* Use the current time to check the timers queue list for expired timers. 
 * Run the watchdog functions for all expired timers and deactivate them.
 * The caller is responsible for scheduling a new alarm if needed.
 */
  timer_t *tp;

  while ((tp = *tmrs) != NULL && tp->tmr_exp_time <= now) {
        *tmrs = tp->tmr_next;
        tp->tmr_exp_time = TMR_NEVER;
        (*tp->tmr_func)(tp);
  }

  if(new_head) {
        if(*tmrs)
                *new_head = (*tmrs)->tmr_exp_time;
        else
                *new_head = 0;
  }
}