bsd-waitpid.h revision 323134 
1/*
2 * Copyright (c) 2000 Ben Lindstrom.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 */
25
26#ifndef _BSD_WAITPID_H
27#define _BSD_WAITPID_H
28
29#ifndef HAVE_WAITPID
30/* Clean out any potental issues */
31#undef WIFEXITED
32#undef WIFSTOPPED
33#undef WIFSIGNALED
34
35/* Define required functions to mimic a POSIX look and feel */
36#define _W_INT(w)	(*(int*)&(w))	/* convert union wait to int */
37#define WIFEXITED(w)	(!((_W_INT(w)) & 0377))
38#define WIFSTOPPED(w)	((_W_INT(w)) & 0100)
39#define WIFSIGNALED(w)	(!WIFEXITED(w) && !WIFSTOPPED(w))
40#define WEXITSTATUS(w)	(int)(WIFEXITED(w) ? ((_W_INT(w) >> 8) & 0377) : -1)
41#define WTERMSIG(w)	(int)(WIFSIGNALED(w) ? (_W_INT(w) & 0177) : -1)
42#define WCOREFLAG	0x80
43#define WCOREDUMP(w) 	((_W_INT(w)) & WCOREFLAG)
44
45/* Prototype */
46pid_t waitpid(int, int *, int);
47
48#endif /* !HAVE_WAITPID */
49#endif /* _BSD_WAITPID_H */
50