0,0 → 1,98 |
/* $NetBSD: jobs.h,v 1.12 2000/05/22 10:18:47 elric Exp $ */ |
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/*- |
* Copyright (c) 1991, 1993 |
* The Regents of the University of California. All rights reserved. |
* |
* This code is derived from software contributed to Berkeley by |
* Kenneth Almquist. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* 1. Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* must display the following acknowledgement: |
* This product includes software developed by the University of |
* California, Berkeley and its contributors. |
* 4. Neither the name of the University nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* |
* @(#)jobs.h 8.2 (Berkeley) 5/4/95 |
*/ |
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/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ |
#define FORK_FG 0 |
#define FORK_BG 1 |
#define FORK_NOJOB 2 |
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/* |
* A job structure contains information about a job. A job is either a |
* single process or a set of processes contained in a pipeline. In the |
* latter case, pidlist will be non-NULL, and will point to a -1 terminated |
* array of pids. |
*/ |
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struct procstat { |
pid_t pid; /* process id */ |
int status; /* status flags (defined above) */ |
char *cmd; /* text of command being run */ |
}; |
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/* states */ |
#define JOBSTOPPED 1 /* all procs are stopped */ |
#define JOBDONE 2 /* all procs are completed */ |
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struct job { |
struct procstat ps0; /* status of process */ |
struct procstat *ps; /* status or processes when more than one */ |
short nprocs; /* number of processes */ |
short pgrp; /* process group of this job */ |
char state; /* true if job is finished */ |
char used; /* true if this entry is in used */ |
char changed; /* true if status has changed */ |
#if JOBS |
char jobctl; /* job running under job control */ |
#endif |
}; |
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extern short backgndpid; /* pid of last background process */ |
extern int job_warning; /* user was warned about stopped jobs */ |
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void setjobctl (int); |
int killcmd (int, char **); |
int fgcmd (int, char **); |
int bgcmd (int, char **); |
int jobscmd (int, char **); |
void showjobs (int); |
int waitcmd (int, char **); |
int jobidcmd (int, char **); |
struct job *makejob (union node *, int); |
int forkshell (struct job *, union node *, int); |
int waitforjob (struct job *); |
int stoppedjobs (void); |
char *commandtext (union node *); |
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#if ! JOBS |
#define setjobctl(on) /* do nothing */ |
#endif |