| /* | 
 |  * Copyright (C) 2008 The Android Open Source Project | 
 |  * All rights reserved. | 
 |  * | 
 |  * Redistribution and use in source and binary forms, with or without | 
 |  * modification, are permitted provided that the following conditions | 
 |  * are met: | 
 |  *  * Redistributions of source code must retain the above copyright | 
 |  *    notice, this list of conditions and the following disclaimer. | 
 |  *  * Redistributions in binary form must reproduce the above copyright | 
 |  *    notice, this list of conditions and the following disclaimer in | 
 |  *    the documentation and/or other materials provided with the | 
 |  *    distribution. | 
 |  * | 
 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 
 |  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 
 |  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | 
 |  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | 
 |  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | 
 |  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | 
 |  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS | 
 |  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | 
 |  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | 
 |  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | 
 |  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 
 |  * SUCH DAMAGE. | 
 |  */ | 
 |  | 
 | #include <sys/wait.h> | 
 | #include <stddef.h> | 
 |  | 
 | extern "C" int __waitid(idtype_t which, id_t id, siginfo_t* info, int options, struct rusage* ru); | 
 |  | 
 | pid_t wait(int* status) { | 
 |   return wait4(-1, status, 0, NULL); | 
 | } | 
 |  | 
 | pid_t waitpid(pid_t pid, int* status, int options) { | 
 |   return wait4(pid, status, options, NULL); | 
 | } | 
 |  | 
 | int waitid(idtype_t which, id_t id, siginfo_t* info, int options) { | 
 |   // The system call takes an optional struct rusage that we don't need. | 
 |   return __waitid(which, id, info, options, NULL); | 
 | } |