sys/kern/tty_pts.c

113 	struct pts_softc *psc = tty_softc(tp);
128 		if (psc->pts_flags & PTS_PKT && psc->pts_pkt) {
129 			pkt = psc->pts_pkt;
130 			psc->pts_pkt = 0;
146 			if (psc->pts_flags & PTS_PKT) {
164 		if (psc->pts_flags & PTS_FINISHED)
172 		error = cv_wait_sig(&psc->pts_outwait, tp->t_mtx);
187 	struct pts_softc *psc = tty_softc(tp);
221 			if (psc->pts_flags & PTS_FINISHED) {
234 			error = cv_wait_sig(&psc->pts_inwait, tp->t_mtx);
268 	struct pts_softc *psc = tty_softc(tp);
280 		if (psc->pts_flags & PTS_FINISHED) {
334 		if (psc->pts_unit < 0)
336 		*(unsigned int *)data = psc->pts_unit;
374 			psc->pts_flags |= PTS_PKT;
376 			psc->pts_flags &= ~PTS_PKT;
396 	struct pts_softc *psc = tty_softc(tp);
401 	if (psc->pts_flags & PTS_FINISHED) {
410 		    (psc->pts_flags & PTS_PKT && psc->pts_pkt))
432 			selrecord(td, &psc->pts_outpoll);
434 			selrecord(td, &psc->pts_inpoll);
451 	struct pts_softc *psc = tty_softc(tp);
453 	knlist_remove(&psc->pts_outpoll.si_note, kn, 0);
461 	struct pts_softc *psc = tty_softc(tp);
463 	if (psc->pts_flags & PTS_FINISHED) {
477 	struct pts_softc *psc = tty_softc(tp);
479 	knlist_remove(&psc->pts_inpoll.si_note, kn, 0);
487 	struct pts_softc *psc = tty_softc(tp);
489 	if (psc->pts_flags & PTS_FINISHED) {
513 	struct pts_softc *psc = tty_softc(tp);
521 		knlist_add(&psc->pts_outpoll.si_note, kn, 1);
525 		knlist_add(&psc->pts_inpoll.si_note, kn, 1);
542 	struct pts_softc *psc = tty_softc(tp);
557 	if (psc->pts_cdev != NULL)
558 		sb->st_ino = sb->st_rdev = dev2udev(psc->pts_cdev);
616 	struct pts_softc *psc = tty_softc(tp);
618 	cv_broadcast(&psc->pts_outwait);
619 	selwakeup(&psc->pts_outpoll);
620 	KNOTE_LOCKED(&psc->pts_outpoll.si_note, 0);
626 	struct pts_softc *psc = tty_softc(tp);
628 	cv_broadcast(&psc->pts_inwait);
629 	selwakeup(&psc->pts_inpoll);
630 	KNOTE_LOCKED(&psc->pts_inpoll.si_note, 0);
636 	struct pts_softc *psc = tty_softc(tp);
638 	psc->pts_flags &= ~PTS_FINISHED;
646 	struct pts_softc *psc = tty_softc(tp);
649 	psc->pts_flags |= PTS_FINISHED;
657 	struct pts_softc *psc = tty_softc(tp);
665 		psc->pts_pkt &= ~TIOCPKT_START;
668 		psc->pts_pkt &= ~TIOCPKT_STOP;
671 		psc->pts_pkt &= ~TIOCPKT_DOSTOP;
674 		psc->pts_pkt &= ~TIOCPKT_NOSTOP;
678 	psc->pts_pkt |= event;
685 	struct pts_softc *psc = softc;
688 	if (psc->pts_unit >= 0)
689 		free_unr(pts_pool, psc->pts_unit);
691 	chgptscnt(psc->pts_cred->cr_ruidinfo, -1, 0);
692 	racct_sub_cred(psc->pts_cred, RACCT_NPTS, 1);
693 	crfree(psc->pts_cred);
695 	seldrain(&psc->pts_inpoll);
696 	seldrain(&psc->pts_outpoll);
697 	knlist_destroy(&psc->pts_inpoll.si_note);
698 	knlist_destroy(&psc->pts_outpoll.si_note);
702 	if (psc->pts_cdev != NULL)
703 		destroy_dev_sched(psc->pts_cdev);
706 	free(psc, M_PTS);
727 	struct pts_softc *psc;
755 	psc = malloc(sizeof(struct pts_softc), M_PTS, M_WAITOK|M_ZERO);
756 	cv_init(&psc->pts_inwait, "ptsin");
757 	cv_init(&psc->pts_outwait, "ptsout");
759 	psc->pts_unit = unit;
760 	psc->pts_cred = crhold(cred);
762 	tp = tty_alloc(&pts_class, psc);
763 	knlist_init_mtx(&psc->pts_inpoll.si_note, tp->t_mtx);
764 	knlist_init_mtx(&psc->pts_outpoll.si_note, tp->t_mtx);
767 	tty_makedev(tp, td->td_ucred, "pts/%u", psc->pts_unit);
781 	struct pts_softc *psc;
801 	psc = malloc(sizeof(struct pts_softc), M_PTS, M_WAITOK|M_ZERO);
802 	cv_init(&psc->pts_inwait, "ptsin");
803 	cv_init(&psc->pts_outwait, "ptsout");
805 	psc->pts_unit = -1;
806 	psc->pts_cdev = dev;
807 	psc->pts_cred = crhold(cred);
809 	tp = tty_alloc(&pts_class, psc);
810 	knlist_init_mtx(&psc->pts_inpoll.si_note, tp->t_mtx);
811 	knlist_init_mtx(&psc->pts_outpoll.si_note, tp->t_mtx);