static int get_minimum ( int  deltat )

static

Definition at line 555 of file dtq.c.

References dll_get_next(), MAX_TIMER_QUEUES, QUEUE_ENT::queue_head, queue_id, SPECIAL_QUEUE, timer_entry::time, timer_entry::time_left, and WRITE_QUEUE.

Referenced by dtq_add_entry(), and stop_it().

{
        TIMR_ENT *auxp, *queue_head;
        int queue_id;
        int min_time = 100000;

        queue_head = timer_queues[WRITE_QUEUE].queue_head;
        if( dll_get_next((DLL *)queue_head,(DLL *)queue_head))
                min_time = -10;
        if((min_time != -10) || deltat)
        {
                if( (queue_head = timer_queues[SPECIAL_QUEUE].queue_head) != NULL)
                {
                        auxp = queue_head;
                        while( (auxp = (TIMR_ENT *)dll_get_next((DLL *)queue_head,(DLL *)auxp)) )
                        {
                                auxp->time_left -= deltat;
                                if(auxp->time_left > 0)
                                {
                                        if(auxp->time_left < min_time)
                                        {
                                                min_time = auxp->time_left;
                                        }
                                }
                        }
                }
                for( queue_id = 0; queue_id < MAX_TIMER_QUEUES; queue_id++ ) 
                {
                        if( (queue_head = timer_queues[queue_id].queue_head) == NULL )
                                continue;
                        auxp = queue_head;
                        while( (auxp = (TIMR_ENT *)dll_get_next((DLL *)queue_head,(DLL *)auxp)) )
                        {
                                auxp->time_left -= deltat;
                                if(auxp->time_left > 0)
                                {
                                        if(auxp->time_left < min_time)
                                        {
                                                min_time = auxp->time_left;
                                        }
                                }
                                else
                                {
                                        if(auxp->time < min_time)
                                        {
                                                min_time = auxp->time;
                                        }
                                }
                                if((!deltat) && (min_time <= 1))
                                        break;
                        }
                }
        }
        if(min_time == 100000)
                min_time = 0;
        return min_time;
}

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