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
31extern pid_t  __wait4 (pid_t pid, int *status, int options, struct rusage *rusage);
32extern int    __waitid(idtype_t which, id_t id, siginfo_t *info, int options, struct rusage *ru);
33
34pid_t  wait( int*  status )
35{
36    return __wait4( (pid_t)-1, status, 0, NULL );
37}
38
39pid_t  wait3(int*  status, int options, struct rusage*  rusage)
40{
41    return __wait4( (pid_t)-1, status, options, rusage );
42}
43
44pid_t  waitpid(pid_t  pid, int*  status, int  options)
45{
46    return __wait4( pid, status, options, NULL );
47}
48
49int  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