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Diffstat (limited to 'src/gdbmclose.c')
-rw-r--r-- | src/gdbmclose.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/gdbmclose.c b/src/gdbmclose.c new file mode 100644 index 0000000..f711a8f --- /dev/null +++ b/src/gdbmclose.c @@ -0,0 +1,61 @@ +/* gdbmclose.c - Close a previously opened dbm file. */ + +/* This file is part of GDBM, the GNU data base manager. + Copyright (C) 1990, 1991, 1993, 2007, 2011, 2013 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. */ + +void +gdbm_close (GDBM_FILE dbf) +{ + int index; /* For freeing the bucket cache. */ + + /* Make sure the database is all on disk. */ + if (dbf->read_write != GDBM_READER) + __fsync (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); + } + close (dbf->desc); + free (dbf->name); + if (dbf->dir != NULL) free (dbf->dir); + + if (dbf->bucket_cache != NULL) { + for (index = 0; index < dbf->cache_size; index++) { + if (dbf->bucket_cache[index].ca_bucket != NULL) + free (dbf->bucket_cache[index].ca_bucket); + if (dbf->bucket_cache[index].ca_data.dptr != NULL) + free (dbf->bucket_cache[index].ca_data.dptr); + } + free (dbf->bucket_cache); + } + if ( dbf->header != NULL ) free (dbf->header); + free (dbf); +} |