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/* gdbmclose.c - Close a previously opened dbm file. */
/* This file is part of GDBM, the GNU data base manager.
Copyright (C) 1990-2021 Free Software Foundation, Inc.
GDBM is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GDBM 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GDBM. If not, see <http://www.gnu.org/licenses/>. */
/* Include system configuration before all else. */
#include "autoconf.h"
#include "gdbmdefs.h"
/* Close the dbm file and free all memory associated with the file DBF.
Before freeing members of DBF, check and make sure that they were
allocated. */
int
gdbm_close (GDBM_FILE dbf)
{
int index; /* For freeing the bucket cache. */
int syserrno;
gdbm_set_errno (dbf, GDBM_NO_ERROR, FALSE);
if (dbf->desc != -1)
{
/* Make sure the database is all on disk. */
if (dbf->read_write != GDBM_READER)
gdbm_file_sync (dbf);
/* Close the file and free all malloced memory. */
#if HAVE_MMAP
_gdbm_mapped_unmap (dbf);
#endif
if (dbf->file_locking)
_gdbm_unlock_file (dbf);
if (close (dbf->desc))
GDBM_SET_ERRNO (dbf, GDBM_FILE_CLOSE_ERROR, FALSE);
}
syserrno = gdbm_last_syserr (dbf);
gdbm_clear_error (dbf);
free (dbf->name);
free (dbf->dir);
if (dbf->bucket_cache != NULL)
{
for (index = 0; index < dbf->cache_size; index++)
{
free (dbf->bucket_cache[index].ca_bucket);
free (dbf->bucket_cache[index].ca_data.dptr);
}
free (dbf->bucket_cache);
}
free (dbf->header);
free (dbf);
if (gdbm_errno)
{
errno = syserrno;
return -1;
}
return 0;
}
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