| pty.c (85844) | pty.c (90831) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)tty_pty.c 8.4 (Berkeley) 2/20/95 | 1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)tty_pty.c 8.4 (Berkeley) 2/20/95 |
| 34 * $FreeBSD: head/sys/kern/tty_pty.c 85844 2001-11-01 20:56:57Z rwatson $ | 34 * $FreeBSD: head/sys/kern/tty_pty.c 90831 2002-02-18 06:07:11Z dillon $ |
| 35 */ 36 37/* 38 * Pseudo-teletype Driver 39 * (Actually two drivers, requiring two entries in 'cdevsw') 40 */ 41#include "opt_compat.h" 42#include <sys/param.h> --- 456 unchanged lines hidden (view full) --- 499 ((pti->pt_flags & PF_UCNTL) && pti->pt_ucntl))) 500 revents |= events & (POLLIN | POLLRDNORM); 501 502 if (events & (POLLOUT | POLLWRNORM)) 503 if (tp->t_state & TS_ISOPEN && 504 ((pti->pt_flags & PF_REMOTE) ? 505 (tp->t_canq.c_cc == 0) : 506 ((tp->t_rawq.c_cc + tp->t_canq.c_cc < TTYHOG - 2) || | 35 */ 36 37/* 38 * Pseudo-teletype Driver 39 * (Actually two drivers, requiring two entries in 'cdevsw') 40 */ 41#include "opt_compat.h" 42#include <sys/param.h> --- 456 unchanged lines hidden (view full) --- 499 ((pti->pt_flags & PF_UCNTL) && pti->pt_ucntl))) 500 revents |= events & (POLLIN | POLLRDNORM); 501 502 if (events & (POLLOUT | POLLWRNORM)) 503 if (tp->t_state & TS_ISOPEN && 504 ((pti->pt_flags & PF_REMOTE) ? 505 (tp->t_canq.c_cc == 0) : 506 ((tp->t_rawq.c_cc + tp->t_canq.c_cc < TTYHOG - 2) || |
| 507 (tp->t_canq.c_cc == 0 && (tp->t_iflag & ICANON))))) | 507 (tp->t_canq.c_cc == 0 && (tp->t_lflag & ICANON))))) |
| 508 revents |= events & (POLLOUT | POLLWRNORM); 509 510 if (events & POLLHUP) 511 if ((tp->t_state & TS_CARR_ON) == 0) 512 revents |= POLLHUP; 513 514 if (revents == 0) { 515 if (events & (POLLIN | POLLRDNORM)) --- 75 unchanged lines hidden (view full) --- 591 if ((tp->t_state & TS_ISOPEN) == 0) { 592 /* adjust for data copied in but not written */ 593 uio->uio_resid += cc; 594 return (EIO); 595 } 596 } 597 while (cc > 0) { 598 if ((tp->t_rawq.c_cc + tp->t_canq.c_cc) >= TTYHOG - 2 && | 508 revents |= events & (POLLOUT | POLLWRNORM); 509 510 if (events & POLLHUP) 511 if ((tp->t_state & TS_CARR_ON) == 0) 512 revents |= POLLHUP; 513 514 if (revents == 0) { 515 if (events & (POLLIN | POLLRDNORM)) --- 75 unchanged lines hidden (view full) --- 591 if ((tp->t_state & TS_ISOPEN) == 0) { 592 /* adjust for data copied in but not written */ 593 uio->uio_resid += cc; 594 return (EIO); 595 } 596 } 597 while (cc > 0) { 598 if ((tp->t_rawq.c_cc + tp->t_canq.c_cc) >= TTYHOG - 2 && |
| 599 (tp->t_canq.c_cc > 0 || !(tp->t_iflag&ICANON))) { | 599 (tp->t_canq.c_cc > 0 || !(tp->t_lflag&ICANON))) { |
| 600 wakeup(TSA_HUP_OR_INPUT(tp)); 601 goto block; 602 } 603 (*linesw[tp->t_line].l_rint)(*cp++, tp); 604 cnt++; 605 cc--; 606 } 607 cc = 0; --- 251 unchanged lines hidden --- | 600 wakeup(TSA_HUP_OR_INPUT(tp)); 601 goto block; 602 } 603 (*linesw[tp->t_line].l_rint)(*cp++, tp); 604 cnt++; 605 cc--; 606 } 607 cc = 0; --- 251 unchanged lines hidden --- |