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Lines 420-431
tty_is_ctty(struct tty *tp, struct proc *p)
Link Here
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| 420 |
} |
420 |
} |
| 421 |
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421 |
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| 422 |
int |
422 |
int |
| 423 |
tty_wait_background(struct tty *tp, struct thread *td, int sig) |
423 |
tty_wait_background(struct tty *tp, struct thread *td, int sigx) |
| 424 |
{ |
424 |
{ |
| 425 |
struct proc *p; |
425 |
struct proc *p; |
| 426 |
struct pgrp *pg; |
426 |
struct pgrp *pg; |
| 427 |
ksiginfo_t ksi; |
427 |
ksiginfo_t ksi; |
| 428 |
int error; |
428 |
int error, sig; |
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|
429 |
bool nonblock; |
| 430 |
|
| 431 |
sig = sigx & ~TTY_WB_NONBLOCK; |
| 432 |
nonblock = (sigx & TTY_WB_NONBLOCK) != 0; |
| 429 |
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433 |
|
| 430 |
MPASS(sig == SIGTTIN || sig == SIGTTOU); |
434 |
MPASS(sig == SIGTTIN || sig == SIGTTOU); |
| 431 |
tty_assert_locked(tp); |
435 |
tty_assert_locked(tp); |
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Lines 493-498
tty_wait_background(struct tty *tp, struct thread *td, int sig)
Link Here
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| 493 |
pgsignal(pg, ksi.ksi_signo, 1, &ksi); |
497 |
pgsignal(pg, ksi.ksi_signo, 1, &ksi); |
| 494 |
PGRP_UNLOCK(pg); |
498 |
PGRP_UNLOCK(pg); |
| 495 |
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499 |
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|
500 |
if (nonblock) |
| 501 |
return (EINTR); |
| 502 |
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| 496 |
error = tty_wait(tp, &tp->t_bgwait); |
503 |
error = tty_wait(tp, &tp->t_bgwait); |
| 497 |
if (error) |
504 |
if (error) |
| 498 |
return (error); |
505 |
return (error); |
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Lines 606-612
ttydev_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
Link Here
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| 606 |
* If the ioctl() causes the TTY to be modified, let it |
613 |
* If the ioctl() causes the TTY to be modified, let it |
| 607 |
* wait in the background. |
614 |
* wait in the background. |
| 608 |
*/ |
615 |
*/ |
| 609 |
error = tty_wait_background(tp, curthread, SIGTTOU); |
616 |
error = tty_wait_background(tp, curthread, SIGTTOU | |
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617 |
TTY_WB_NONBLOCK); |
| 610 |
if (error) |
618 |
if (error) |
| 611 |
goto done; |
619 |
goto done; |
| 612 |
} |
620 |
} |