31 	int woff = loff - rb->head; /* window offset */  in loff2boff()
56 		if (walk->head > f->head) {  in frags_insert()
145 #define TAILQ_LOOP_NEXT(head, headname, elm, field) \  argument
146 	((*(((struct headname *)((head)->tqh_last))->tqh_last)) == (elm) ? \
147 	 ((head)->tqh_first) : ((elm)->field.tqe_next))
164 	boff_t head = loff2boff(rb, data);  in buf_try_resize()  local
167 	tcpbufseg_t *headseg = buf_getbuf(rb, head);  in buf_try_resize()
174 		rb->corr = (rb->corr + (segdiff * UNITBUFSIZE) - (new_head - head))  in buf_try_resize()
179 		if (head > tail && headseg == tailseg) {  in buf_try_resize()
182 			memcpy(&seg->buf[head % UNITBUFSIZE],  in buf_try_resize()
183 				   &headseg->buf[head % UNITBUFSIZE],  in buf_try_resize()
184 				   UNITBUFSIZE - (head % UNITBUFSIZE));  in buf_try_resize()
206 						(new_head - head)) % rb->len;  in buf_try_resize()
226 					new->head = et;  in buf_try_resize()
233 				if (f->head >= eh && f->tail <= et) {  in buf_try_resize()
238 				if (f->head < eh) {  in buf_try_resize()
240 					new->head = eh;  in buf_try_resize()
270 				assert((tail % UNITBUFSIZE) < (head % UNITBUFSIZE));  in buf_try_resize()
271 				memcpy(&tailseg->buf[head % UNITBUFSIZE],  in buf_try_resize()
272 						&headseg->buf[head % UNITBUFSIZE],  in buf_try_resize()
273 						UNITBUFSIZE - (head % UNITBUFSIZE));  in buf_try_resize()
348 	while (off < rb->head)  in FUNCDEF_BUF_RW()
414 	if (!rb || new > (rb->head + rb->len) || new < rb->head)  in tcprb_setpile()
419 	if (!cf || (cf->head != rb->head)) {  in tcprb_setpile()
421 		assert(rb->pile == rb->head);  in tcprb_setpile()
438 	if (!cf || (cf->head != rb->head))  in tcprb_cflen()
459 	if (!cf || (cf->head != rb->head))  in tcprb_ffhead()
463 	int cflen = cf->tail - cf->head; /* length of cf */  in tcprb_ffhead()
467 	ff = MIN(ff, rb->pile - rb->head); /* head cannot go further than pile */  in tcprb_ffhead()
474 		cf->head += ff;  in tcprb_ffhead()
477 	rb->head += ff;  in tcprb_ffhead()
487 		off < rb->head || off >= rb->pile + rb->metalen)  in tcprb_fflen()
493 	int ff = (off + len) - (rb->head + MIN(rb->len, rb->metalen));  in tcprb_fflen()
499 	if (!cf || (cf->head != rb->head))  in tcprb_fflen()
503 	int cflen = cf->tail - cf->head; /* length of cf */  in tcprb_fflen()
507 	fflen = MIN(ff, rb->pile - rb->head); /* head cannot go further than pile */  in tcprb_fflen()
516 	return lastfrag ? (int)(lastfrag->tail - rb->head) : 0;  in tcprb_get_datalen()
599 	return buf_try_resize(rb, len, rb->head,  in tcprb_resize()
615 		if (off >= f->head && off < f->tail) {  in tcprb_ppeek()
643 		off < rb->head || off >= rb->pile + rb->metalen)  in tcprb_pwrite()
652 	if ((ff = (off + len) - (rb->head + MIN(rb->len, rb->metalen))) > 0)  in tcprb_pwrite()
679 			if (f->head <= off + uoff) {  in tcprb_pwrite()
689 						 ef && ef->empty && ef->head < f->tail + len - uoff;  in tcprb_pwrite()
696 							ef->head = f->tail + len - uoff;  in tcprb_pwrite()
703 					wrlen = fnext ? MIN(fnext->head - (off + uoff), len - uoff)  in tcprb_pwrite()
706 					if (fnext && (f->tail == fnext->head)) {  in tcprb_pwrite()
714 			} else if (f->head <= off + len) {  in tcprb_pwrite()
716 				wrlen = MIN(f->head - (off + uoff), len - uoff);  in tcprb_pwrite()
717 				f->head -= wrlen;  in tcprb_pwrite()
721 					 ef && ef->empty && ef->tail < f->head;  in tcprb_pwrite()
725 					if (ef->head <= f->head) {  in tcprb_pwrite()
728 						ef->tail = f->head;  in tcprb_pwrite()
750 			new->head = off;  in tcprb_pwrite()
774 		new->head = efhead;  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()
886 			rb->len, rb->metalen, rb->head, rb->pile, rb->head + rb->metalen);  in tcprb_printrb()
907 			if (DOESOVERLAP(f->head, f->tail, off, off + pctx->p.payloadlen)) {  in tcp_rb_overlapchk()