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 #define WIFCONTINUED(s) ((s) == 0xffff)
48 
49 #define W_EXITCODE(ret, sig)    ((ret) << 8 | (sig))
50 #define W_STOPCODE(sig)         ((sig) << 8 | 0x7f)
51 
52 pid_t wait(int*);
53 pid_t waitpid(pid_t, int*, int);
54 #if __ANDROID_API__ >= __ANDROID_API_J_MR2__
55 pid_t wait4(pid_t, int*, int, struct rusage*) __INTRODUCED_IN(18);
56 #else
57 // Implemented as a static inline before 18.
58 #endif
59 
60 /* Posix states that idtype_t should be an enumeration type, but
61  * the kernel headers define P_ALL, P_PID and P_PGID as constant macros
62  * instead.
63  */
64 typedef int idtype_t;
65 
66 int waitid(idtype_t which, id_t id, siginfo_t* info, int options);
67 
68 __END_DECLS
69 
70 #include <android/legacy_sys_wait_inlines.h>
71 
72 #endif /* _SYS_WAIT_H_ */
73