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

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/* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.

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Copyright (C) 1990-2022 Free Software Foundation, Inc.

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GDBM is free software; you can redistribute it and/or modify

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it under the terms of the GNU General Public License as published by

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the Free Software Foundation; either version 2, or (at your option)

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any later version.

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GDBM is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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GNU General Public License for more details.

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You should have received a copy of the GNU General Public License

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along with GDBM. If not, see <http://www.gnu.org/licenses/>.

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You may contact the author by:

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e-mail: phil@cs.wwu.edu

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us-mail: Philip A. Nelson

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Computer Science Department

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Western Washington University

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Bellingham, WA 98226

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

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#include <gdbm.h>

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/* Parameters to dbm_store for simple insertion or replacement. */

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#define DBM_INSERT GDBM_INSERT

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#define DBM_REPLACE GDBM_REPLACE

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/* The file information header. */

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typedef struct

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{

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GDBM_FILE file; /* Actual gdbm file (held in the .pag file */

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int dirfd; /* Descriptor of the .dir file */

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datum _dbm_memory; /* Keeps the last returned key */

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char *_dbm_fetch_val; /* Keeps the dptr of the last fetched datum */

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gdbm_error _dbm_errno; /* Error code from the last failed call */

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} DBM;

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/* Used internally by the library */

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#define __gdbm_error_to_ndbm(dbm) \

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do \

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{ \

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if (gdbm_errno && gdbm_errno != GDBM_ITEM_NOT_FOUND) \

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(dbm)->_dbm_errno = gdbm_errno; \

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} \

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while (0)

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/* These are the routines */

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extern DBM *dbm_open (char *file, int flags, int mode);

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extern void dbm_close (DBM *dbf);

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extern datum dbm_fetch (DBM *dbf, datum key);

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extern int dbm_store (DBM *dbf, datum key, datum content, int flags);

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extern int dbm_delete (DBM *dbf, datum key);

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extern datum dbm_firstkey (DBM *dbf);

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extern datum dbm_nextkey (DBM *dbf);

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extern int dbm_error (DBM *dbf);

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extern void dbm_clearerr (DBM *dbf);

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extern int dbm_dirfno (DBM *dbf);

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extern int dbm_pagfno (DBM *dbf);

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extern int dbm_rdonly (DBM *dbf);

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