wait.h revision 8229ae46f4fb165a18da4dca1be74c4c099c3ee7 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28#ifndef _SYS_WAIT_H_
29#define _SYS_WAIT_H_
30
31#include <sys/cdefs.h>
32#include <sys/types.h>
33#include <sys/resource.h>
34#include <linux/wait.h>
35#include <signal.h>
36
37__BEGIN_DECLS
38
39#define WEXITSTATUS(s)  (((s) & 0xff00) >> 8)
40#define WCOREDUMP(s)    ((s) & 0x80)
41#define WTERMSIG(s)     ((s) & 0x7f)
42#define WSTOPSIG(s)     WEXITSTATUS(s)
43
44#define WIFEXITED(s)    (WTERMSIG(s) == 0)
45#define WIFSTOPPED(s)   (WTERMSIG(s) == 0x7f)
46#define WIFSIGNALED(s)  (WTERMSIG((s)+1) >= 2)
47
48extern pid_t  wait(int *);
49extern pid_t  waitpid(pid_t, int *, int);
50extern pid_t  wait4(pid_t, int *, int, struct rusage *);
51
52/* Posix states that idtype_t should be an enumeration type, but
53 * the kernel headers define P_ALL, P_PID and P_PGID as constant macros
54 * instead.
55 */
56typedef int idtype_t;
57
58extern int  waitid(idtype_t which, id_t id, siginfo_t *info, int options);
59
60__END_DECLS
61
62#endif /* _SYS_WAIT_H_ */
63