platform_bionic/libc/bionic/wait.cpp
Elliott Hughes 17a8b0db63 Expose wait4 as wait4 rather than __wait4.
This helps strace(1) compile with one fewer hack.

Change-Id: I5296d0cfec5546709cda990abd705ad33d7c4626
2013-03-21 16:14:06 -07:00

54 lines
2.2 KiB
C++

/*
* 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 wait3(int* status, int options, struct rusage* rusage) {
return wait4(-1, status, options, rusage);
}
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 option struct rusage that we don't need */
return __waitid(which, id, info, options, NULL);
}
// TODO: remove this backward compatibility hack (for jb-mr1 strace binaries).
extern "C" pid_t __wait4(pid_t pid, int* status, int options, struct rusage* rusage) {
return wait4(pid, status, options, rusage);
}