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 
48 #define W_EXITCODE(ret, sig)    ((ret) << 8 | (sig))
49 #define W_STOPCODE(sig)         ((sig) << 8 | 0x7f)
50 
51 extern pid_t  wait(int *);
52 extern pid_t  waitpid(pid_t, int *, int);
53 extern pid_t  wait4(pid_t, int *, int, struct rusage *);
54 
55 /* Posix states that idtype_t should be an enumeration type, but
56  * the kernel headers define P_ALL, P_PID and P_PGID as constant macros
57  * instead.
58  */
59 typedef int idtype_t;
60 
61 extern int  waitid(idtype_t which, id_t id, siginfo_t *info, int options);
62 
63 __END_DECLS
64 
65 #endif /* _SYS_WAIT_H_ */
66