text: #include "timers.h"
  
  /*===========================================================================*
   *				tmrs_clrtimer				     *
   *===========================================================================*/
  clock_t tmrs_clrtimer(tmrs, tp, next_time)
  timer_t **tmrs;				/* pointer to timers queue */
  timer_t *tp;				/* timer to be removed */
  clock_t *next_time;
  {
  /* Deactivate a timer and remove it from the timers queue. 
   */
    timer_t **atp;
    clock_t prev_time;
  
    if(*tmrs)
    	prev_time = (*tmrs)->tmr_exp_time;
    else
    	prev_time = 0;
  
    tp->tmr_exp_time = TMR_NEVER;
  
    for (atp = tmrs; *atp != NULL; atp = &(*atp)->tmr_next) {
  	if (*atp == tp) {
  		*atp = tp->tmr_next;
  		break;
  	}
    }
  
    if(next_time) {
    	if(*tmrs)
    		*next_time = (*tmrs)->tmr_exp_time;
    	else	
    		*next_time = 0;
    }
  
    return prev_time;
  }
  
  