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glibc  2.9
wait3.c
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00001 /* Copyright (C) 1991, 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <errno.h>
00020 #include <sys/wait.h>
00021 #include <sys/types.h>
00022 
00023 /* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
00024    return its process ID.  For errors return (pid_t) -1.  If USAGE is not nil,
00025    store information about the child's resource usage (as a `struct rusage')
00026    there.  If the WUNTRACED bit is set in OPTIONS, return status for stopped
00027    children; otherwise don't.  */
00028 pid_t
00029 __wait3 (__WAIT_STATUS_DEFN stat_loc, int options, struct rusage *usage)
00030 {
00031   if ((options & ~(WNOHANG|WUNTRACED)) != 0)
00032     {
00033       __set_errno (EINVAL);
00034       return (pid_t) -1;
00035     }
00036 
00037   __set_errno (ENOSYS);
00038   return (pid_t) -1;
00039 }
00040 stub_warning (wait3)
00041 
00042 weak_alias (__wait3, wait3)
00043 #include <stub-tag.h>