1782 bandwidth_limit_init(struct bwlimit *bw, u_int64_t kbps, size_t buflen)  in bandwidth_limit_init()  argument
1784 	bw->buflen = buflen;  in bandwidth_limit_init()
1785 	bw->rate = kbps;  in bandwidth_limit_init()
1786 	bw->thresh = buflen;  in bandwidth_limit_init()
1787 	bw->lamt = 0;  in bandwidth_limit_init()
1788 	timerclear(&bw->bwstart);  in bandwidth_limit_init()
1789 	timerclear(&bw->bwend);  in bandwidth_limit_init()
1794 bandwidth_limit(struct bwlimit *bw, size_t read_len)  in bandwidth_limit()  argument
1799 	bw->lamt += read_len;  in bandwidth_limit()
1800 	if (!timerisset(&bw->bwstart)) {  in bandwidth_limit()
1801 		monotime_tv(&bw->bwstart);  in bandwidth_limit()
1804 	if (bw->lamt < bw->thresh)  in bandwidth_limit()
1807 	monotime_tv(&bw->bwend);  in bandwidth_limit()
1808 	timersub(&bw->bwend, &bw->bwstart, &bw->bwend);  in bandwidth_limit()
1809 	if (!timerisset(&bw->bwend))  in bandwidth_limit()
1812 	bw->lamt *= 8;  in bandwidth_limit()
1813 	waitlen = (double)1000000L * bw->lamt / bw->rate;  in bandwidth_limit()
1815 	bw->bwstart.tv_sec = waitlen / 1000000L;  in bandwidth_limit()
1816 	bw->bwstart.tv_usec = waitlen % 1000000L;  in bandwidth_limit()
1818 	if (timercmp(&bw->bwstart, &bw->bwend, >)) {  in bandwidth_limit()
1819 		timersub(&bw->bwstart, &bw->bwend, &bw->bwend);  in bandwidth_limit()
1822 		if (bw->bwend.tv_sec) {  in bandwidth_limit()
1823 			bw->thresh /= 2;  in bandwidth_limit()
1824 			if (bw->thresh < bw->buflen / 4)  in bandwidth_limit()
1825 				bw->thresh = bw->buflen / 4;  in bandwidth_limit()
1826 		} else if (bw->bwend.tv_usec < 10000) {  in bandwidth_limit()
1827 			bw->thresh *= 2;  in bandwidth_limit()
1828 			if (bw->thresh > bw->buflen * 8)  in bandwidth_limit()
1829 				bw->thresh = bw->buflen * 8;  in bandwidth_limit()
1832 		TIMEVAL_TO_TIMESPEC(&bw->bwend, &ts);  in bandwidth_limit()
1840 	bw->lamt = 0;  in bandwidth_limit()
1841 	monotime_tv(&bw->bwstart);  in bandwidth_limit()