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 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ 34 #define FORK_FG 0 35 #define FORK_BG 1 36 #define FORK_NOJOB 2 37 38 #include <signal.h> /* for sig_atomic_t */ 39 40 struct job; 41 42 enum { 43 SHOWJOBS_DEFAULT, /* job number, status, command */ 44 SHOWJOBS_VERBOSE, /* job number, PID, status, command */ 45 SHOWJOBS_PIDS, /* PID only */ 46 SHOWJOBS_PGIDS /* PID of the group leader only */ 47 }; 48 49 extern int job_warning; /* user was warned about stopped jobs */ 50 51 void setjobctl(int); 52 void showjobs(int, int); 53 struct job *makejob(union node *, int); 54 pid_t forkshell(struct job *, union node *, int); 55 pid_t vforkexecshell(struct job *, char **, char **, const char *, int, int [2]); 56 int waitforjob(struct job *, int *); 57 int stoppedjobs(void); 58 int backgndpidset(void); 59 pid_t backgndpidval(void); 60 char *commandtext(union node *); 61 62 #if ! JOBS 63 #define setjobctl(on) /* do nothing */ 64 #endif 65