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glibc  2.9
closedir.c
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00001 /* Copyright (C) 1991,1993,1995,1996,1998,2002,2003, 2007
00002    Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <errno.h>
00021 #include <stddef.h>
00022 #include <stdlib.h>
00023 #include <dirent.h>
00024 #include <unistd.h>
00025 #include <dirstream.h>
00026 #include <not-cancel.h>
00027 
00028 
00029 /* Close the directory stream DIRP.
00030    Return 0 if successful, -1 if not.  */
00031 int
00032 __closedir (DIR *dirp)
00033 {
00034   int fd;
00035 
00036   if (dirp == NULL)
00037     {
00038       __set_errno (EINVAL);
00039       return -1;
00040     }
00041 
00042   /* We do not try to synchronize access here.  If some other thread
00043      still uses this handle it is a big mistake and that thread
00044      deserves all the bad data it gets.  */
00045 
00046   fd = dirp->fd;
00047 
00048 #ifndef NOT_IN_libc
00049   __libc_lock_fini (dirp->lock);
00050 #endif
00051 
00052   free ((void *) dirp);
00053 
00054   return close_not_cancel (fd);
00055 }
00056 weak_alias (__closedir, closedir)