usr/dash/jobs.h

/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1997-2005
 *	Herbert Xu <herbert@gondor.apana.org.au>.  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. 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
 */

#include <stdint.h>
#include <sys/types.h>

/* Mode argument to forkshell.  Don't change FORK_FG or FORK_BG. */
#define FORK_FG 0
#define FORK_BG 1
#define FORK_NOJOB 2

/* mode flags for showjob(s) */
#define	SHOW_PGID	0x01	/* only show pgid - for jobs -p */
#define	SHOW_PID	0x04	/* include process pid */
#define	SHOW_CHANGED	0x08	/* only jobs whose state has changed */


/*
 * 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;		/* last process status from wait() */
 	char	*cmd;		/* text of command being run */
};

struct job {
	struct procstat ps0;	/* status of process */
	struct procstat *ps;	/* status or processes when more than one */
#if JOBS
	int stopstatus;		/* status of a stopped job */
#endif
	uint32_t
		nprocs: 16,	/* number of processes */
		state: 8,
#define	JOBRUNNING	0	/* at least one proc running */
#define	JOBSTOPPED	1	/* all procs are stopped */
#define	JOBDONE		2	/* all procs are completed */
#if JOBS
		sigint: 1,	/* job was killed by SIGINT */
		jobctl: 1,	/* job running under job control */
#endif
		waited: 1,	/* true if this entry has been waited for */
		used: 1,	/* true if this entry is in used */
		changed: 1;	/* true if status has changed */
	struct job *prev_job;	/* previous job */
};

extern pid_t backgndpid;	/* pid of last background process */
extern int job_warning;		/* user was warned about stopped jobs */
#if JOBS
extern int jobctl;		/* true if doing job control */
#else
#define jobctl 0
#endif

void setjobctl(int);
int killcmd(int, char **);
int fgcmd(int, char **);
int bgcmd(int, char **);
int jobscmd(int, char **);
struct output;
void showjobs(struct output *, int);
int waitcmd(int, char **);
struct job *makejob(union node *, int);
int forkshell(struct job *, union node *, int);
int waitforjob(struct job *);
int stoppedjobs(void);

#if ! JOBS
#define setjobctl(on) ((void)(on))	/* do nothing */
#endif
1	niro	532	/*-
2			* Copyright (c) 1991, 1993
3			* The Regents of the University of California. All rights reserved.
4			* Copyright (c) 1997-2005
5			* Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved.
6			*
7			* This code is derived from software contributed to Berkeley by
8			* Kenneth Almquist.
9			*
10			* Redistribution and use in source and binary forms, with or without
11			* modification, are permitted provided that the following conditions
12			* are met:
13			* 1. Redistributions of source code must retain the above copyright
14			* notice, this list of conditions and the following disclaimer.
15			* 2. Redistributions in binary form must reproduce the above copyright
16			* notice, this list of conditions and the following disclaimer in the
17			* documentation and/or other materials provided with the distribution.
18			* 3. Neither the name of the University nor the names of its contributors
19			* may be used to endorse or promote products derived from this software
20			* without specific prior written permission.
21			*
22			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32			* SUCH DAMAGE.
33			*
34			* @(#)jobs.h 8.2 (Berkeley) 5/4/95
35			*/
36
37			#include <stdint.h>
38			#include <sys/types.h>
39
40			/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */
41			#define FORK_FG 0
42			#define FORK_BG 1
43			#define FORK_NOJOB 2
44
45			/* mode flags for showjob(s) */
46			#define SHOW_PGID 0x01 /* only show pgid - for jobs -p */
47			#define SHOW_PID 0x04 /* include process pid */
48			#define SHOW_CHANGED 0x08 /* only jobs whose state has changed */
49
50
51			/*
52			* A job structure contains information about a job. A job is either a
53			* single process or a set of processes contained in a pipeline. In the
54			* latter case, pidlist will be non-NULL, and will point to a -1 terminated
55			* array of pids.
56			*/
57
58			struct procstat {
59			pid_t pid; /* process id */
60			int status; /* last process status from wait() */
61			char cmd; / text of command being run */
62			};
63
64			struct job {
65			struct procstat ps0; /* status of process */
66			struct procstat ps; / status or processes when more than one */
67			#if JOBS
68			int stopstatus; /* status of a stopped job */
69			#endif
70			uint32_t
71			nprocs: 16, /* number of processes */
72			state: 8,
73			#define JOBRUNNING 0 /* at least one proc running */
74			#define JOBSTOPPED 1 /* all procs are stopped */
75			#define JOBDONE 2 /* all procs are completed */
76			#if JOBS
77			sigint: 1, /* job was killed by SIGINT */
78			jobctl: 1, /* job running under job control */
79			#endif
80			waited: 1, /* true if this entry has been waited for */
81			used: 1, /* true if this entry is in used */
82			changed: 1; /* true if status has changed */
83			struct job prev_job; / previous job */
84			};
85
86			extern pid_t backgndpid; /* pid of last background process */
87			extern int job_warning; /* user was warned about stopped jobs */
88			#if JOBS
89			extern int jobctl; /* true if doing job control */
90			#else
91			#define jobctl 0
92			#endif
93
94			void setjobctl(int);
95			int killcmd(int, char **);
96			int fgcmd(int, char **);
97			int bgcmd(int, char **);
98			int jobscmd(int, char **);
99			struct output;
100			void showjobs(struct output *, int);
101			int waitcmd(int, char **);
102			struct job makejob(union node , int);
103			int forkshell(struct job , union node , int);
104			int waitforjob(struct job *);
105			int stoppedjobs(void);
106
107			#if ! JOBS
108	niro	1122	#define setjobctl(on) ((void)(on)) /* do nothing */
109	niro	532	#endif