glibc/sysdeps/mach/hurd/wait4.c

/* Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <hurd.h>
#include <hurd/port.h>

pid_t
__wait4 (pid_t pid, __WAIT_STATUS_DEFN stat_loc, int options,
	 struct rusage *usage)
{
  pid_t dead;
  error_t err;
  struct rusage ignored;
  natural_t sigcode;
  int dummy;

  err = __USEPORT (PROC, __proc_wait (port, pid, options,
				      stat_loc ?: &dummy, &sigcode,
				      usage ?: &ignored, &dead));

  return err ? (pid_t) __hurd_fail (err) : dead;
}

weak_alias (__wait4, wait4)