bin/sh/jobs.h

   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  *      @(#)jobs.h      8.2 (Berkeley) 5/4/95
  33  * $FreeBSD: head/bin/sh/jobs.h 327475 2018-01-01 22:31:52Z jilles $
  34  */
  35
  36 /* Mode argument to forkshell.  Don't change FORK_FG or FORK_BG. */
  37 #define FORK_FG 0
  38 #define FORK_BG 1
  39 #define FORK_NOJOB 2
  40
  41 #include <signal.h>             /* for sig_atomic_t */
  42
  43 struct job;
  44
  45 enum {
  46         SHOWJOBS_DEFAULT,       /* job number, status, command */
  47         SHOWJOBS_VERBOSE,       /* job number, PID, status, command */
  48         SHOWJOBS_PIDS,          /* PID only */
  49         SHOWJOBS_PGIDS          /* PID of the group leader only */
  50 };
  51
  52 extern int job_warning;         /* user was warned about stopped jobs */
  53
  54 void setjobctl(int);
  55 void showjobs(int, int);
  56 struct job *makejob(union node *, int);
  57 pid_t forkshell(struct job *, union node *, int);
  58 pid_t vforkexecshell(struct job *, char **, char **, const char *, int, int []);
  59 int waitforjob(struct job *, int *);
  60 int stoppedjobs(void);
  61 int backgndpidset(void);
  62 pid_t backgndpidval(void);
  63 char *commandtext(union node *);
  64
  65 #if ! JOBS
  66 #define setjobctl(on)   /* do nothing */
  67 #endif