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43626ea4 | 1 | /* Define wait system call interface for Emacs. |
f8c25f1b | 2 | Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. |
43626ea4 RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
43626ea4 RS |
20 | |
21 | /* Define the structure that the wait system call stores. | |
22 | On many systems, there is a structure defined for this. | |
23 | But on vanilla-ish USG systems there is not. */ | |
24 | ||
25 | #ifndef VMS | |
26 | #ifndef WAITTYPE | |
da149a8f RS |
27 | |
28 | #ifdef WAIT_USE_INT | |
29 | /* Some systems have union wait in their header, but we should use | |
30 | int regardless of that. */ | |
31 | #include <sys/wait.h> | |
32 | #define WAITTYPE int | |
33 | #define WRETCODE(w) WEXITSTATUS (w) | |
34 | ||
35 | #else /* not WAIT_USE_INT */ | |
36 | ||
14206c20 | 37 | #if (!defined (BSD) && !defined (UNIPLUS) && !defined (STRIDE) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER)) |
43626ea4 RS |
38 | #define WAITTYPE int |
39 | #define WIFSTOPPED(w) ((w&0377) == 0177) | |
40 | #define WIFSIGNALED(w) ((w&0377) != 0177 && (w&~0377) == 0) | |
41 | #define WIFEXITED(w) ((w&0377) == 0) | |
42 | #define WRETCODE(w) (w >> 8) | |
43 | #define WSTOPSIG(w) (w >> 8) | |
44 | #define WTERMSIG(w) (w & 0377) | |
45 | #ifndef WCOREDUMP | |
46 | #define WCOREDUMP(w) ((w&0200) != 0) | |
47 | #endif | |
da149a8f | 48 | |
43626ea4 | 49 | #else |
da149a8f | 50 | |
43626ea4 RS |
51 | #ifdef BSD4_1 |
52 | #include <wait.h> | |
53 | #else | |
54 | #include <sys/wait.h> | |
55 | #endif /* not BSD 4.1 */ | |
56 | ||
57 | #define WAITTYPE union wait | |
58 | #define WRETCODE(w) w.w_retcode | |
4f480b74 | 59 | #undef WCOREDUMP /* Later BSDs define this name differently. */ |
43626ea4 RS |
60 | #define WCOREDUMP(w) w.w_coredump |
61 | ||
b01b093a | 62 | #if defined (HPUX) || defined (convex) |
43626ea4 | 63 | /* HPUX version 7 has broken definitions of these. */ |
b01b093a | 64 | /* pvogel@convex.com says the convex does too. */ |
43626ea4 RS |
65 | #undef WTERMSIG |
66 | #undef WSTOPSIG | |
67 | #undef WIFSTOPPED | |
68 | #undef WIFSIGNALED | |
69 | #undef WIFEXITED | |
b01b093a | 70 | #endif /* HPUX | convex */ |
43626ea4 RS |
71 | |
72 | #ifndef WTERMSIG | |
73 | #define WTERMSIG(w) w.w_termsig | |
74 | #endif | |
75 | #ifndef WSTOPSIG | |
76 | #define WSTOPSIG(w) w.w_stopsig | |
77 | #endif | |
78 | #ifndef WIFSTOPPED | |
79 | #define WIFSTOPPED(w) (WTERMSIG (w) == 0177) | |
80 | #endif | |
81 | #ifndef WIFSIGNALED | |
82 | #define WIFSIGNALED(w) (WTERMSIG (w) != 0177 && (WSTOPSIG (w)) == 0) | |
83 | #endif | |
84 | #ifndef WIFEXITED | |
85 | #define WIFEXITED(w) (WTERMSIG (w) == 0) | |
86 | #endif | |
87 | #endif /* BSD or UNIPLUS or STRIDE */ | |
da149a8f | 88 | #endif /* not WAIT_USE_INT */ |
43626ea4 | 89 | #endif /* no WAITTYPE */ |
da149a8f | 90 | |
43626ea4 | 91 | #else /* VMS */ |
da149a8f | 92 | |
43626ea4 RS |
93 | #define WAITTYPE int |
94 | #define WIFSTOPPED(w) 0 | |
95 | #define WIFSIGNALED(w) 0 | |
96 | #define WIFEXITED(w) ((w) != -1) | |
97 | #define WRETCODE(w) (w) | |
98 | #define WSTOPSIG(w) (w) | |
99 | #define WCOREDUMP(w) 0 | |
100 | #define WTERMSIG(w) (w) | |
101 | #include <ssdef.h> | |
102 | #include <iodef.h> | |
103 | #include <clidef.h> | |
104 | #include "vmsproc.h" | |
da149a8f | 105 | |
43626ea4 | 106 | #endif /* VMS */ |