sysdeps/posix/wait3.c

   1 /* Copyright (C) 1992, 93, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <sys/wait.h>
  21 #include <sys/types.h>
  22 #include <stddef.h>
  23
  24 /* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
  25    return its process ID.  For errors return (pid_t) -1.  If USAGE is not nil,
  26    store information about the child's resource usage (as a `struct rusage')
  27    there.  If the WUNTRACED bit is set in OPTIONS, return status for stopped
  28    children; otherwise don't.  */
  29 pid_t
  30 __wait3 (__WAIT_STATUS stat_loc, int options, struct rusage *usage)
  31 {
  32   if (usage != NULL)
  33     {
  34       __set_errno (ENOSYS);
  35       return (pid_t) -1;
  36     }
  37   return __waitpid (WAIT_ANY, stat_loc.__iptr, options);
  38 }
  39
  40 weak_alias (__wait3, wait3)