/* ndbm.h - The include file for ndbm users. */

/* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
Copyright (C) 1990-2011 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 2, 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/>.

You may contact the author by:
e-mail: [email protected]
us-mail: Philip A. Nelson
Computer Science Department
Western Washington University
Bellingham, WA 98226

*************************************************************************/

#include <gdbm.h>

/* Parameters to dbm_store for simple insertion or replacement. */
#define DBM_INSERT GDBM_INSERT
#define DBM_REPLACE GDBM_REPLACE

/* The file information header. */
typedef struct
{
GDBM_FILE file; /* Actual gdbm file (held in the .pag file */
int dirfd; /* Descriptor of the .dir file */
datum _dbm_memory; /* Keeps the last returned key */
char *_dbm_fetch_val; /* Keeps the dptr of the last fetched datum */
gdbm_error _dbm_errno; /* Error code from the last failed call */
} DBM;

/* Used internally by the library */
#define __gdbm_error_to_ndbm(dbm) \
do \
{ \
if (gdbm_errno && gdbm_errno != GDBM_ITEM_NOT_FOUND) \
(dbm)->_dbm_errno = gdbm_errno; \
} \
while (0)

/* These are the routines */

extern DBM *dbm_open (char *file, int flags, int mode);
extern void dbm_close (DBM *dbf);
extern datum dbm_fetch (DBM *dbf, datum key);
extern int dbm_store (DBM *dbf, datum key, datum content, int flags);
extern int dbm_delete (DBM *dbf, datum key);
extern datum dbm_firstkey (DBM *dbf);
extern datum dbm_nextkey (DBM *dbf);
extern int dbm_error (DBM *dbf);
extern void dbm_clearerr (DBM *dbf);
extern int dbm_dirfno (DBM *dbf);
extern int dbm_pagfno (DBM *dbf);
extern int dbm_rdonly (DBM *dbf);