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1 | /* $NetBSD: jobs.h,v 1.12 2000/05/22 10:18:47 elric Exp $ */ |
1 | /* $NetBSD: jobs.h,v 1.12 2000/05/22 10:18:47 elric Exp $ */ |
2 | 2 | ||
3 | /*- |
3 | /*- |
4 | * Copyright (c) 1991, 1993 |
4 | * Copyright (c) 1991, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
6 | * |
7 | * This code is derived from software contributed to Berkeley by |
7 | * This code is derived from software contributed to Berkeley by |
8 | * Kenneth Almquist. |
8 | * Kenneth Almquist. |
9 | * |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. All advertising materials mentioning features or use of this software |
18 | * 3. All advertising materials mentioning features or use of this software |
19 | * must display the following acknowledgement: |
19 | * must display the following acknowledgement: |
20 | * This product includes software developed by the University of |
20 | * This product includes software developed by the University of |
21 | * California, Berkeley and its contributors. |
21 | * California, Berkeley and its contributors. |
22 | * 4. Neither the name of the University nor the names of its contributors |
22 | * 4. Neither the name of the University nor the names of its contributors |
23 | * may be used to endorse or promote products derived from this software |
23 | * may be used to endorse or promote products derived from this software |
24 | * without specific prior written permission. |
24 | * without specific prior written permission. |
25 | * |
25 | * |
26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
36 | * SUCH DAMAGE. |
36 | * SUCH DAMAGE. |
37 | * |
37 | * |
38 | * @(#)jobs.h 8.2 (Berkeley) 5/4/95 |
38 | * @(#)jobs.h 8.2 (Berkeley) 5/4/95 |
39 | */ |
39 | */ |
40 | 40 | ||
41 | /* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ |
41 | /* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */ |
42 | #define FORK_FG 0 |
42 | #define FORK_FG 0 |
43 | #define FORK_BG 1 |
43 | #define FORK_BG 1 |
44 | #define FORK_NOJOB 2 |
44 | #define FORK_NOJOB 2 |
45 | 45 | ||
46 | 46 | ||
47 | /* |
47 | /* |
48 | * A job structure contains information about a job. A job is either a |
48 | * A job structure contains information about a job. A job is either a |
49 | * single process or a set of processes contained in a pipeline. In the |
49 | * single process or a set of processes contained in a pipeline. In the |
50 | * latter case, pidlist will be non-NULL, and will point to a -1 terminated |
50 | * latter case, pidlist will be non-NULL, and will point to a -1 terminated |
51 | * array of pids. |
51 | * array of pids. |
52 | */ |
52 | */ |
53 | 53 | ||
54 | struct procstat { |
54 | struct procstat { |
55 | pid_t pid; /* process id */ |
55 | pid_t pid; /* process id */ |
56 | int status; /* status flags (defined above) */ |
56 | int status; /* status flags (defined above) */ |
57 | char *cmd; /* text of command being run */ |
57 | char *cmd; /* text of command being run */ |
58 | }; |
58 | }; |
59 | 59 | ||
60 | 60 | ||
61 | /* states */ |
61 | /* states */ |
62 | #define JOBSTOPPED 1 /* all procs are stopped */ |
62 | #define JOBSTOPPED 1 /* all procs are stopped */ |
63 | #define JOBDONE 2 /* all procs are completed */ |
63 | #define JOBDONE 2 /* all procs are completed */ |
64 | 64 | ||
65 | 65 | ||
66 | struct job { |
66 | struct job { |
67 | struct procstat ps0; /* status of process */ |
67 | struct procstat ps0; /* status of process */ |
68 | struct procstat *ps; /* status or processes when more than one */ |
68 | struct procstat *ps; /* status or processes when more than one */ |
69 | short nprocs; /* number of processes */ |
69 | short nprocs; /* number of processes */ |
70 | short pgrp; /* process group of this job */ |
70 | short pgrp; /* process group of this job */ |
71 | char state; /* true if job is finished */ |
71 | char state; /* true if job is finished */ |
72 | char used; /* true if this entry is in used */ |
72 | char used; /* true if this entry is in used */ |
73 | char changed; /* true if status has changed */ |
73 | char changed; /* true if status has changed */ |
74 | #if JOBS |
74 | #if JOBS |
75 | char jobctl; /* job running under job control */ |
75 | char jobctl; /* job running under job control */ |
76 | #endif |
76 | #endif |
77 | }; |
77 | }; |
78 | 78 | ||
79 | extern short backgndpid; /* pid of last background process */ |
79 | extern short backgndpid; /* pid of last background process */ |
80 | extern int job_warning; /* user was warned about stopped jobs */ |
80 | extern int job_warning; /* user was warned about stopped jobs */ |
81 | 81 | ||
82 | void setjobctl (int); |
82 | void setjobctl (int); |
83 | int killcmd (int, char **); |
83 | int killcmd (int, char **); |
84 | int fgcmd (int, char **); |
84 | int fgcmd (int, char **); |
85 | int bgcmd (int, char **); |
85 | int bgcmd (int, char **); |
86 | int jobscmd (int, char **); |
86 | int jobscmd (int, char **); |
87 | void showjobs (int); |
87 | void showjobs (int); |
88 | int waitcmd (int, char **); |
88 | int waitcmd (int, char **); |
89 | int jobidcmd (int, char **); |
89 | int jobidcmd (int, char **); |
90 | struct job *makejob (union node *, int); |
90 | struct job *makejob (union node *, int); |
91 | int forkshell (struct job *, union node *, int); |
91 | int forkshell (struct job *, union node *, int); |
92 | int waitforjob (struct job *); |
92 | int waitforjob (struct job *); |
93 | int stoppedjobs (void); |
93 | int stoppedjobs (void); |
94 | char *commandtext (union node *); |
94 | char *commandtext (union node *); |
95 | 95 | ||
96 | #if ! JOBS |
96 | #if ! JOBS |
97 | #define setjobctl(on) /* do nothing */ |
97 | #define setjobctl(on) /* do nothing */ |
98 | #endif |
98 | #endif |
99 | 99 |