services/cache/infra.c

2  * services/cache/infra.c - infrastructure cache, server rtt and capabilities
59  * even if another type has completely rtt maxed it, the different type
385 	rtt_init(&data->rtt);
449 		int old = ((struct infra_data*)e->data)->rtt.rto;
464 				((struct infra_data*)e->data)->rtt.rto
480 		*to = rtt_timeout(&data->rtt);
488 	*to = rtt_timeout(&data->rtt);
490 		rtt_notimeout(&data->rtt)*4 <= *to)) {
559 	if(data->rtt.rto >= RTT_MAX_TIMEOUT)
562 		data->rtt.rto = RTT_MAX_TIMEOUT-1000;
586 	/* have an entry, update the rtt */
592 			data->rtt.rto = orig_rtt;
595 		rtt_lost(&data->rtt, orig_rtt);
610 		if(rtt_unclamped(&data->rtt) >= USEFUL_SERVER_TOP_TIMEOUT)
611 			rtt_init(&data->rtt);
612 		rtt_update(&data->rtt, roundtrip);
620 	if(data->rtt.rto > 0)
621 		rto = data->rtt.rto;
631 	size_t nmlen, struct rtt_info* rtt, int* delay, time_t timenow,
642 		memmove(rtt, &data->rtt, sizeof(*rtt));
670 	/* have an entry, update the rtt, and the ttl */
689 	int* lame, int* dnsseclame, int* reclame, int* rtt, time_t timenow)
697 	*rtt = rtt_unclamped(&host->rtt);
698 	if(host->rtt.rto >= PROBE_MAXRTO && timenow >= host->probedelay
701 		if(*rtt >= USEFUL_SERVER_TOP_TIMEOUT)
702 			*rtt = USEFUL_SERVER_TOP_TIMEOUT-1000;
703 	} else if(host->rtt.rto >= PROBE_MAXRTO && timenow < host->probedelay
704 		&& rtt_notimeout(&host->rtt)*4 <= host->rtt.rto) {
709 				*rtt = USEFUL_SERVER_TOP_TIMEOUT;
710 			else	*rtt = USEFUL_SERVER_TOP_TIMEOUT-1000;
713 				*rtt = USEFUL_SERVER_TOP_TIMEOUT;
714 			else	*rtt = USEFUL_SERVER_TOP_TIMEOUT-1000;
717 				*rtt = USEFUL_SERVER_TOP_TIMEOUT;
718 			else	*rtt = USEFUL_SERVER_TOP_TIMEOUT-1000;
726 		if(host->rtt.rto >= USEFUL_SERVER_TOP_TIMEOUT ||
729 			*rtt = USEFUL_SERVER_TOP_TIMEOUT-1000;