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glibc  2.9
wait3.c
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00001 /* Copyright (C) 1992, 93, 1995-1999, 2000 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 #include <stddef.h>
00023 
00024 extern pid_t kwaitpid (int *stat_loc, pid_t pid, int options,
00025                      struct rusage *ru_loc, siginfo_t *infop);
00026 
00027 /* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
00028    return its process ID.  For errors return (pid_t) -1.  If USAGE is not nil,
00029    store information about the child's resource usage (as a `struct rusage')
00030    there.  If the WUNTRACED bit is set in OPTIONS, return status for stopped
00031    children; otherwise don't.  */
00032 pid_t
00033 __wait3 (__WAIT_STATUS stat_loc, int options, struct rusage *usage)
00034 {
00035   if (usage != NULL)
00036     {
00037       __set_errno (ENOSYS);
00038       return (pid_t) -1;
00039     }
00040   return kwaitpid (stat_loc.__iptr, WAIT_ANY, options, usage, NULL);
00041 }
00042 strong_alias (__wait3, wait3)