Commit | Line | Data |
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43626ea4 | 1 | /* Define wait system call interface for Emacs. |
429ab54e | 2 | Copyright (C) 1993, 1994, 1995, 2000, 2001, 2002, 2003, 2004, |
8cabe764 | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
43626ea4 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
b9b1cc14 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
43626ea4 | 8 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
43626ea4 RS |
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 | |
b9b1cc14 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
43626ea4 RS |
19 | |
20 | /* Define the structure that the wait system call stores. | |
21 | On many systems, there is a structure defined for this. | |
22 | But on vanilla-ish USG systems there is not. */ | |
23 | ||
d72c1cad DL |
24 | #ifndef EMACS_SYSWAIT_H |
25 | #define EMACS_SYSWAIT_H | |
26 | ||
43626ea4 | 27 | #ifndef VMS |
d72c1cad | 28 | |
557713d8 RS |
29 | /* This is now really the approach recommended by Autoconf. If this |
30 | doesn't cause trouble anywhere, remove the original code, which is | |
31 | #if'd out below. */ | |
d72c1cad DL |
32 | |
33 | #if 1 | |
d72c1cad | 34 | #include <sys/types.h> |
1f0bb0ab | 35 | |
3bddb272 | 36 | #ifdef HAVE_SYS_WAIT_H /* We have sys/wait.h with POSIXoid definitions. */ |
d72c1cad | 37 | #include <sys/wait.h> |
557713d8 RS |
38 | #endif /* !HAVE_SYS_WAIT_H */ |
39 | ||
1f0bb0ab DL |
40 | #ifndef WCOREDUMP /* not POSIX */ |
41 | #define WCOREDUMP(status) ((status) & 0x80) | |
d72c1cad | 42 | #endif |
557713d8 | 43 | #ifndef WEXITSTATUS |
1f0bb0ab | 44 | #define WEXITSTATUS(status) (((status) & 0xff00) >> 8) |
557713d8 RS |
45 | #endif |
46 | #ifndef WIFEXITED | |
1f0bb0ab | 47 | #define WIFEXITED(status) (WTERMSIG(status) == 0) |
557713d8 RS |
48 | #endif |
49 | #ifndef WIFSTOPPED | |
1f0bb0ab | 50 | #define WIFSTOPPED(status) (((status) & 0xff) == 0x7f) |
557713d8 RS |
51 | #endif |
52 | #ifndef WIFSIGNALED | |
1f0bb0ab | 53 | #define WIFSIGNALED(status) (!WIFSTOPPED(status) && !WIFEXITED(status)) |
557713d8 RS |
54 | #endif |
55 | #ifndef WSTOPSIG | |
1f0bb0ab | 56 | #define WSTOPSIG(status) WEXITSTATUS(status) |
557713d8 RS |
57 | #endif |
58 | #ifndef WTERMSIG | |
1f0bb0ab | 59 | #define WTERMSIG(status) ((status) & 0x7f) |
557713d8 | 60 | #endif |
d72c1cad | 61 | |
1f0bb0ab DL |
62 | #undef WAITTYPE |
63 | #define WAITTYPE int | |
64 | #undef WRETCODE | |
65 | #define WRETCODE(status) WEXITSTATUS (status) | |
d72c1cad | 66 | |
557713d8 | 67 | #else /* 0 */ |
d72c1cad | 68 | |
43626ea4 | 69 | #ifndef WAITTYPE |
da149a8f RS |
70 | |
71 | #ifdef WAIT_USE_INT | |
72 | /* Some systems have union wait in their header, but we should use | |
73 | int regardless of that. */ | |
74 | #include <sys/wait.h> | |
75 | #define WAITTYPE int | |
76 | #define WRETCODE(w) WEXITSTATUS (w) | |
77 | ||
78 | #else /* not WAIT_USE_INT */ | |
79 | ||
e39a993c | 80 | #if (!defined (BSD_SYSTEM) && !(defined (HPUX) && !defined (NOMULTIPLEJOBS)) && !defined (HAVE_WAIT_HEADER)) |
43626ea4 RS |
81 | #define WAITTYPE int |
82 | #define WIFSTOPPED(w) ((w&0377) == 0177) | |
83 | #define WIFSIGNALED(w) ((w&0377) != 0177 && (w&~0377) == 0) | |
84 | #define WIFEXITED(w) ((w&0377) == 0) | |
85 | #define WRETCODE(w) (w >> 8) | |
86 | #define WSTOPSIG(w) (w >> 8) | |
1f0bb0ab | 87 | #define WTERMSIG(w) (w & 0177) |
43626ea4 RS |
88 | #ifndef WCOREDUMP |
89 | #define WCOREDUMP(w) ((w&0200) != 0) | |
90 | #endif | |
da149a8f | 91 | |
177c0ea7 | 92 | #else |
da149a8f | 93 | |
43626ea4 RS |
94 | #ifdef BSD4_1 |
95 | #include <wait.h> | |
96 | #else | |
97 | #include <sys/wait.h> | |
98 | #endif /* not BSD 4.1 */ | |
99 | ||
100 | #define WAITTYPE union wait | |
101 | #define WRETCODE(w) w.w_retcode | |
4f480b74 | 102 | #undef WCOREDUMP /* Later BSDs define this name differently. */ |
43626ea4 RS |
103 | #define WCOREDUMP(w) w.w_coredump |
104 | ||
b01b093a | 105 | #if defined (HPUX) || defined (convex) |
43626ea4 | 106 | /* HPUX version 7 has broken definitions of these. */ |
b01b093a | 107 | /* pvogel@convex.com says the convex does too. */ |
43626ea4 RS |
108 | #undef WTERMSIG |
109 | #undef WSTOPSIG | |
110 | #undef WIFSTOPPED | |
111 | #undef WIFSIGNALED | |
112 | #undef WIFEXITED | |
b01b093a | 113 | #endif /* HPUX | convex */ |
43626ea4 RS |
114 | |
115 | #ifndef WTERMSIG | |
116 | #define WTERMSIG(w) w.w_termsig | |
117 | #endif | |
118 | #ifndef WSTOPSIG | |
119 | #define WSTOPSIG(w) w.w_stopsig | |
120 | #endif | |
121 | #ifndef WIFSTOPPED | |
122 | #define WIFSTOPPED(w) (WTERMSIG (w) == 0177) | |
123 | #endif | |
124 | #ifndef WIFSIGNALED | |
125 | #define WIFSIGNALED(w) (WTERMSIG (w) != 0177 && (WSTOPSIG (w)) == 0) | |
126 | #endif | |
127 | #ifndef WIFEXITED | |
128 | #define WIFEXITED(w) (WTERMSIG (w) == 0) | |
129 | #endif | |
e39a993c | 130 | #endif /* BSD_SYSTEM || HPUX */ |
da149a8f | 131 | #endif /* not WAIT_USE_INT */ |
43626ea4 | 132 | #endif /* no WAITTYPE */ |
da149a8f | 133 | |
557713d8 | 134 | #endif /* 0 */ |
d72c1cad | 135 | |
43626ea4 | 136 | #else /* VMS */ |
da149a8f | 137 | |
43626ea4 RS |
138 | #define WAITTYPE int |
139 | #define WIFSTOPPED(w) 0 | |
140 | #define WIFSIGNALED(w) 0 | |
141 | #define WIFEXITED(w) ((w) != -1) | |
142 | #define WRETCODE(w) (w) | |
143 | #define WSTOPSIG(w) (w) | |
144 | #define WCOREDUMP(w) 0 | |
145 | #define WTERMSIG(w) (w) | |
146 | #include <ssdef.h> | |
147 | #include <iodef.h> | |
148 | #include <clidef.h> | |
149 | #include "vmsproc.h" | |
da149a8f | 150 | |
43626ea4 | 151 | #endif /* VMS */ |
d72c1cad DL |
152 | |
153 | #endif /* EMACS_SYSWAIT_H */ | |
ab5796a9 MB |
154 | |
155 | /* arch-tag: 7e5d9719-ec66-4b6f-89bb-563eea16a899 | |
156 | (do not change this comment) */ |