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 #include <sys/wait.h>
29 #include <stddef.h>
30
31 extern pid_t __wait4 (pid_t pid, int *status, int options, struct rusage *rusage);
32 extern int __waitid(idtype_t which, id_t id, siginfo_t *info, int options, struct rusage *ru);
33
wait(int * status)34 pid_t wait( int* status )
35 {
36 return __wait4( (pid_t)-1, status, 0, NULL );
37 }
38
wait3(int * status,int options,struct rusage * rusage)39 pid_t wait3(int* status, int options, struct rusage* rusage)
40 {
41 return __wait4( (pid_t)-1, status, options, rusage );
42 }
43
waitpid(pid_t pid,int * status,int options)44 pid_t waitpid(pid_t pid, int* status, int options)
45 {
46 return __wait4( pid, status, options, NULL );
47 }
48
waitid(idtype_t which,id_t id,siginfo_t * info,int options)49 int waitid(idtype_t which, id_t id, siginfo_t *info, int options)
50 {
51 /* the system call takes an option struct rusage that we don't need */
52 return __waitid(which, id, info, options, NULL);
53 }
54