| jobs.c (45916) | jobs.c (46684) |
|---|---|
| 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 25 unchanged lines hidden (view full) --- 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38#if 0 39static char sccsid[] = "@(#)jobs.c 8.5 (Berkeley) 5/4/95"; 40#endif 41static const char rcsid[] = | 1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 25 unchanged lines hidden (view full) --- 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38#if 0 39static char sccsid[] = "@(#)jobs.c 8.5 (Berkeley) 5/4/95"; 40#endif 41static const char rcsid[] = |
| 42 "$Id: jobs.c,v 1.23 1998/09/08 13:16:52 cracauer Exp $"; | 42 "$Id: jobs.c,v 1.24 1999/04/21 11:52:39 cracauer Exp $"; |
| 43#endif /* not lint */ 44 45#include <fcntl.h> 46#include <signal.h> 47#include <errno.h> 48#include <unistd.h> 49#include <stdlib.h> 50#include <sys/param.h> --- 637 unchanged lines hidden (view full) --- 688 * Under job control we have the problem that while a child process is 689 * running interrupts generated by the user are sent to the child but not 690 * to the shell. This means that an infinite loop started by an inter- 691 * active user may be hard to kill. With job control turned off, an 692 * interactive user may place an interactive program inside a loop. If 693 * the interactive program catches interrupts, the user doesn't want 694 * these interrupts to also abort the loop. The approach we take here 695 * is to have the shell ignore interrupt signals while waiting for a | 43#endif /* not lint */ 44 45#include <fcntl.h> 46#include <signal.h> 47#include <errno.h> 48#include <unistd.h> 49#include <stdlib.h> 50#include <sys/param.h> --- 637 unchanged lines hidden (view full) --- 688 * Under job control we have the problem that while a child process is 689 * running interrupts generated by the user are sent to the child but not 690 * to the shell. This means that an infinite loop started by an inter- 691 * active user may be hard to kill. With job control turned off, an 692 * interactive user may place an interactive program inside a loop. If 693 * the interactive program catches interrupts, the user doesn't want 694 * these interrupts to also abort the loop. The approach we take here 695 * is to have the shell ignore interrupt signals while waiting for a |
| 696 * forground process to terminate, and then send itself an interrupt | 696 * foreground process to terminate, and then send itself an interrupt |
| 697 * signal if the child process was terminated by an interrupt signal. 698 * Unfortunately, some programs want to do a bit of cleanup and then 699 * exit on interrupt; unless these processes terminate themselves by 700 * sending a signal to themselves (instead of calling exit) they will 701 * confuse this approach. 702 */ 703 704int --- 449 unchanged lines hidden --- | 697 * signal if the child process was terminated by an interrupt signal. 698 * Unfortunately, some programs want to do a bit of cleanup and then 699 * exit on interrupt; unless these processes terminate themselves by 700 * sending a signal to themselves (instead of calling exit) they will 701 * confuse this approach. 702 */ 703 704int --- 449 unchanged lines hidden --- |