Commit | Line | Data |
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43626ea4 | 1 | /* Define wait system call interface for Emacs. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1995, 2000, 2002, 2003, 2004, |
aaef169d | 3 | 2005, 2006 Free Software Foundation, Inc. |
43626ea4 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
43626ea4 RS |
21 | |
22 | /* Define the structure that the wait system call stores. | |
23 | On many systems, there is a structure defined for this. | |
24 | But on vanilla-ish USG systems there is not. */ | |
25 | ||
d72c1cad DL |
26 | #ifndef EMACS_SYSWAIT_H |
27 | #define EMACS_SYSWAIT_H | |
28 | ||
43626ea4 | 29 | #ifndef VMS |
d72c1cad | 30 | |
557713d8 RS |
31 | /* This is now really the approach recommended by Autoconf. If this |
32 | doesn't cause trouble anywhere, remove the original code, which is | |
33 | #if'd out below. */ | |
d72c1cad DL |
34 | |
35 | #if 1 | |
d72c1cad | 36 | #include <sys/types.h> |
1f0bb0ab | 37 | |
3bddb272 | 38 | #ifdef HAVE_SYS_WAIT_H /* We have sys/wait.h with POSIXoid definitions. */ |
d72c1cad | 39 | #include <sys/wait.h> |
557713d8 RS |
40 | #endif /* !HAVE_SYS_WAIT_H */ |
41 | ||
1f0bb0ab DL |
42 | #ifndef WCOREDUMP /* not POSIX */ |
43 | #define WCOREDUMP(status) ((status) & 0x80) | |
d72c1cad | 44 | #endif |
557713d8 | 45 | #ifndef WEXITSTATUS |
1f0bb0ab | 46 | #define WEXITSTATUS(status) (((status) & 0xff00) >> 8) |
557713d8 RS |
47 | #endif |
48 | #ifndef WIFEXITED | |
1f0bb0ab | 49 | #define WIFEXITED(status) (WTERMSIG(status) == 0) |
557713d8 RS |
50 | #endif |
51 | #ifndef WIFSTOPPED | |
1f0bb0ab | 52 | #define WIFSTOPPED(status) (((status) & 0xff) == 0x7f) |
557713d8 RS |
53 | #endif |
54 | #ifndef WIFSIGNALED | |
1f0bb0ab | 55 | #define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status)) |
557713d8 RS |
56 | #endif |
57 | #ifndef WSTOPSIG | |
1f0bb0ab | 58 | #define WSTOPSIG(status) WEXITSTATUS(status) |
557713d8 RS |
59 | #endif |
60 | #ifndef WTERMSIG | |
1f0bb0ab | 61 | #define WTERMSIG(status) ((status) & 0x7f) |
557713d8 | 62 | #endif |
d72c1cad | 63 | |
1f0bb0ab DL |
64 | #undef WAITTYPE |
65 | #define WAITTYPE int | |
66 | #undef WRETCODE | |
67 | #define WRETCODE(status) WEXITSTATUS (status) | |
d72c1cad | 68 | |
557713d8 | 69 | #else /* 0 */ |
d72c1cad | 70 | |
43626ea4 | 71 | #ifndef WAITTYPE |
da149a8f RS |
72 | |
73 | #ifdef WAIT_USE_INT | |
74 | /* Some systems have union wait in their header, but we should use | |
75 | int regardless of that. */ | |
76 | #include <sys/wait.h> | |
77 | #define WAITTYPE int | |
78 | #define WRETCODE(w) WEXITSTATUS (w) | |
79 | ||
80 | #else /* not WAIT_USE_INT */ | |
81 | ||
6df54671 | 82 | #if (!defined (BSD_SYSTEM) && !defined (UNIPLUS) && !defined (STRIDE) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER)) |
43626ea4 RS |
83 | #define WAITTYPE int |
84 | #define WIFSTOPPED(w) ((w&0377) == 0177) | |
85 | #define WIFSIGNALED(w) ((w&0377) != 0177 && (w&~0377) == 0) | |
86 | #define WIFEXITED(w) ((w&0377) == 0) | |
87 | #define WRETCODE(w) (w >> 8) | |
88 | #define WSTOPSIG(w) (w >> 8) | |
1f0bb0ab | 89 | #define WTERMSIG(w) (w & 0177) |
43626ea4 RS |
90 | #ifndef WCOREDUMP |
91 | #define WCOREDUMP(w) ((w&0200) != 0) | |
92 | #endif | |
da149a8f | 93 | |
177c0ea7 | 94 | #else |
da149a8f | 95 | |
43626ea4 RS |
96 | #ifdef BSD4_1 |
97 | #include <wait.h> | |
98 | #else | |
99 | #include <sys/wait.h> | |
100 | #endif /* not BSD 4.1 */ | |
101 | ||
102 | #define WAITTYPE union wait | |
103 | #define WRETCODE(w) w.w_retcode | |
4f480b74 | 104 | #undef WCOREDUMP /* Later BSDs define this name differently. */ |
43626ea4 RS |
105 | #define WCOREDUMP(w) w.w_coredump |
106 | ||
b01b093a | 107 | #if defined (HPUX) || defined (convex) |
43626ea4 | 108 | /* HPUX version 7 has broken definitions of these. */ |
b01b093a | 109 | /* pvogel@convex.com says the convex does too. */ |
43626ea4 RS |
110 | #undef WTERMSIG |
111 | #undef WSTOPSIG | |
112 | #undef WIFSTOPPED | |
113 | #undef WIFSIGNALED | |
114 | #undef WIFEXITED | |
b01b093a | 115 | #endif /* HPUX | convex */ |
43626ea4 RS |
116 | |
117 | #ifndef WTERMSIG | |
118 | #define WTERMSIG(w) w.w_termsig | |
119 | #endif | |
120 | #ifndef WSTOPSIG | |
121 | #define WSTOPSIG(w) w.w_stopsig | |
122 | #endif | |
123 | #ifndef WIFSTOPPED | |
124 | #define WIFSTOPPED(w) (WTERMSIG (w) == 0177) | |
125 | #endif | |
126 | #ifndef WIFSIGNALED | |
127 | #define WIFSIGNALED(w) (WTERMSIG (w) != 0177 && (WSTOPSIG (w)) == 0) | |
128 | #endif | |
129 | #ifndef WIFEXITED | |
130 | #define WIFEXITED(w) (WTERMSIG (w) == 0) | |
131 | #endif | |
6df54671 | 132 | #endif /* BSD_SYSTEM || UNIPLUS || STRIDE || HPUX */ |
da149a8f | 133 | #endif /* not WAIT_USE_INT */ |
43626ea4 | 134 | #endif /* no WAITTYPE */ |
da149a8f | 135 | |
557713d8 | 136 | #endif /* 0 */ |
d72c1cad | 137 | |
43626ea4 | 138 | #else /* VMS */ |
da149a8f | 139 | |
43626ea4 RS |
140 | #define WAITTYPE int |
141 | #define WIFSTOPPED(w) 0 | |
142 | #define WIFSIGNALED(w) 0 | |
143 | #define WIFEXITED(w) ((w) != -1) | |
144 | #define WRETCODE(w) (w) | |
145 | #define WSTOPSIG(w) (w) | |
146 | #define WCOREDUMP(w) 0 | |
147 | #define WTERMSIG(w) (w) | |
148 | #include <ssdef.h> | |
149 | #include <iodef.h> | |
150 | #include <clidef.h> | |
151 | #include "vmsproc.h" | |
da149a8f | 152 | |
43626ea4 | 153 | #endif /* VMS */ |
d72c1cad DL |
154 | |
155 | #endif /* EMACS_SYSWAIT_H */ | |
ab5796a9 MB |
156 | |
157 | /* arch-tag: 7e5d9719-ec66-4b6f-89bb-563eea16a899 | |
158 | (do not change this comment) */ |