1 /* posixwait.h -- job control definitions from POSIX 1003.1 */
3 /* Copyright (C) 1997 Free Software Foundation, Inc.
5 This file is part of GNU Bash, the Bourne Again SHell.
7 Bash is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Bash is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License along
18 with Bash; see the file COPYING. If not, write to the Free Software
19 Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
21 #if !defined (_POSIXWAIT_H_)
22 # define _POSIXWAIT_H_
24 /* If _POSIX_VERSION is not defined, we assume that <sys/wait.h> defines
25 a `union wait' and various macros used to manipulate it. Look in
26 unionwait.h for the things we expect to find. */
27 #if defined (HAVE_SYS_WAIT_H)
28 # include <sys/wait.h>
29 #else /* !HAVE_SYS_WAIT_H */
30 # if !defined (_POSIX_VERSION)
31 # include "unionwait.h"
33 #endif /* !HAVE_SYS_WAIT_H */
35 /* How to get the status of a job. For Posix, this is just an
36 int, but for other systems we have to crack the union wait. */
37 #if !defined (_POSIX_VERSION)
38 typedef union wait WAIT;
39 # define WSTATUS(t) (t.w_status)
40 #else /* _POSIX_VERSION */
42 # define WSTATUS(t) (t)
43 #endif /* _POSIX_VERSION */
45 /* Make sure that parameters to wait3 are defined. */
46 #if !defined (WNOHANG)
51 /* More Posix P1003.1 definitions. In the POSIX versions, the parameter is
52 passed as an `int', in the non-POSIX version, as `union wait'. */
53 #if defined (_POSIX_VERSION)
55 # if !defined (WSTOPSIG)
56 # define WSTOPSIG(s) ((s) >> 8)
57 # endif /* !WSTOPSIG */
59 # if !defined (WTERMSIG)
60 # define WTERMSIG(s) ((s) & 0177)
61 # endif /* !WTERMSIG */
63 # if !defined (WEXITSTATUS)
64 # define WEXITSTATUS(s) ((s) >> 8)
65 # endif /* !WEXITSTATUS */
67 # if !defined (WIFSTOPPED)
68 # define WIFSTOPPED(s) (((s) & 0177) == 0177)
69 # endif /* !WIFSTOPPED */
71 # if !defined (WIFEXITED)
72 # define WIFEXITED(s) (((s) & 0377) == 0)
73 # endif /* !WIFEXITED */
75 # if !defined (WIFSIGNALED)
76 # define WIFSIGNALED(s) (!WIFSTOPPED(s) && !WIFEXITED(s))
77 # endif /* !WIFSIGNALED */
79 # if !defined (WIFCORED)
80 # define WIFCORED(s) ((s) & 0200)
81 # endif /* !WIFCORED */
83 #else /* !_POSIX_VERSION */
85 # if !defined (WSTOPSIG)
86 # define WSTOPSIG(s) ((s).w_stopsig)
87 # endif /* !WSTOPSIG */
89 # if !defined (WTERMSIG)
90 # define WTERMSIG(s) ((s).w_termsig)
91 # endif /* !WTERMSIG */
93 # if !defined (WEXITSTATUS)
94 # define WEXITSTATUS(s) ((s).w_retcode)
95 # endif /* !WEXITSTATUS */
97 # if !defined (WIFCORED)
98 # define WIFCORED(s) ((s).w_coredump)
99 # endif /* !WIFCORED */
101 #endif /* !_POSIX_VERSION */
103 #endif /* !_POSIXWAIT_H_ */