103 lines
3.8 KiB
C
103 lines
3.8 KiB
C
/*-
|
|
* 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
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */
|
|
#define FORK_FG 0
|
|
#define FORK_BG 1
|
|
#define FORK_NOJOB 2
|
|
|
|
#include <signal.h> /* for sig_atomic_t */
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
struct procstat {
|
|
pid_t pid; /* process id */
|
|
int status; /* status flags (defined above) */
|
|
char *cmd; /* text of command being run */
|
|
};
|
|
|
|
|
|
/* states */
|
|
#define JOBSTOPPED 1 /* all procs are stopped */
|
|
#define JOBDONE 2 /* all procs are completed */
|
|
|
|
|
|
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 */
|
|
char foreground; /* true if running in the foreground */
|
|
#if JOBS
|
|
char jobctl; /* job running under job control */
|
|
struct job *next; /* job used after this one */
|
|
#endif
|
|
};
|
|
|
|
extern pid_t backgndpid; /* pid of last background process */
|
|
extern int job_warning; /* user was warned about stopped jobs */
|
|
extern int in_waitcmd; /* are we in waitcmd()? */
|
|
extern int in_dowait; /* are we in dowait()? */
|
|
extern volatile sig_atomic_t breakwaitcmd; /* break wait to process traps? */
|
|
|
|
void setjobctl(int);
|
|
int fgcmd(int, char **);
|
|
int bgcmd(int, char **);
|
|
int jobscmd(int, char **);
|
|
void showjobs(int, int, 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 *);
|
|
int stoppedjobs(void);
|
|
char *commandtext(union node *);
|
|
|
|
#if ! JOBS
|
|
#define setjobctl(on) /* do nothing */
|
|
#endif
|