165 	boff_t tail = (data + datalen - 1) % rb->len;  in buf_try_resize()  local
168 	tcpbufseg_t *tailseg = buf_getbuf(rb, tail);  in buf_try_resize()
179 		if (head > tail && headseg == tailseg) {  in buf_try_resize()
221 				if (f->tail <= eh)  in buf_try_resize()
224 				if (f->tail > et) {  in buf_try_resize()
227 					new->tail = f->tail;  in buf_try_resize()
230 					f->tail = et;  in buf_try_resize()
233 				if (f->head >= eh && f->tail <= et) {  in buf_try_resize()
241 					new->tail = f->tail;  in buf_try_resize()
244 					f->tail = eh;  in buf_try_resize()
270 				assert((tail % UNITBUFSIZE) < (head % UNITBUFSIZE));  in buf_try_resize()
425 	if (new > cf->tail)  in tcprb_setpile()
442 	int cflen = cf->tail - rb->pile; /* length of cf */  in tcprb_cflen()
463 	int cflen = cf->tail - cf->head; /* length of cf */  in tcprb_ffhead()
503 	int cflen = cf->tail - cf->head; /* length of cf */  in tcprb_fflen()
516 	return lastfrag ? (int)(lastfrag->tail - rb->head) : 0;  in tcprb_get_datalen()
615 		if (off >= f->head && off < f->tail) {  in tcprb_ppeek()
624 	int plen = MIN(len, f->tail - off);  in tcprb_ppeek()
680 				if (f->tail > off + uoff) {  in tcprb_pwrite()
682 					wrlen = f->tail - (off + uoff);  in tcprb_pwrite()
684 				} else if (f->tail == off + uoff) {  in tcprb_pwrite()
689 						 ef && ef->empty && ef->head < f->tail + len - uoff;  in tcprb_pwrite()
693 						if (ef->tail <= f->tail + len - uoff) {  in tcprb_pwrite()
696 							ef->head = f->tail + len - uoff;  in tcprb_pwrite()
705 					f->tail += wrlen;  in tcprb_pwrite()
706 					if (fnext && (f->tail == fnext->head)) {  in tcprb_pwrite()
708 						f->tail = fnext->tail;  in tcprb_pwrite()
721 					 ef && ef->empty && ef->tail < f->head;  in tcprb_pwrite()
728 						ef->tail = f->head;  in tcprb_pwrite()
751 			new->tail = off + len;  in tcprb_pwrite()
775 		new->tail = efhead + eflen;  in tcprb_pwrite()
808 		printf("[%lu - %lu]:'", walk->head, walk->tail - 1);  in tcprb_printfrags()
814 			for (i = walk->head; i < walk->tail; i++) {  in tcprb_printfrags()
907 			if (DOESOVERLAP(f->head, f->tail, off, off + pctx->p.payloadlen)) {  in tcp_rb_overlapchk()