cosmopolitan/libc/calls/wait3.c

41 lines
2.5 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/dce.h"
#include "libc/sysv/errfuns.h"
/**
* Waits for status to change on any child process.
*
* @param opt_out_wstatus optionally returns status code, and *wstatus
* may be inspected using WEEXITSTATUS(), etc.
* @param options can have WNOHANG, WUNTRACED, WCONTINUED, etc.
* @param opt_out_rusage optionally returns accounting data
* @return process id of terminated child or -1 w/ errno
* @asyncsignalsafe
*/
int wait3(int *opt_out_wstatus, int options, struct rusage *opt_out_rusage) {
if (!IsWindows()) {
return wait4$sysv(-1, opt_out_wstatus, options, opt_out_rusage);
} else {
return enosys(); /* TODO(jart) */
}
}