bsd/kern/tty_ptmx.c

938 			if (tp->t_outq.c_cc && (tp->t_state&TS_TTSTOP) == 0)
954 		cc = q_to_b(&tp->t_outq, (u_char *)buf, MIN(uio_resid(uio), BUFSIZ));
1082 		if ((tp->t_outq.c_cc <= tp->t_lowat) &&
1084 			retval = tp->t_hiwat - tp->t_outq.c_cc;
1118 		     tp->t_outq.c_cc && (tp->t_state&TS_TTSTOP) == 0) {
1119 			retval = tp->t_outq.c_cc;
1393 			ndflush(&tp->t_outq, tp->t_outq.c_cc);
1627 			if ((tp->t_outq.c_cc <= tp->t_lowat) &&
1629 				kn->kn_data = tp->t_outq.c_cn - tp->t_outq.c_cc;