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/* GNU DBM - DataBase Manager include file

   Copyright 1989, 1991  Free Software Foundation, Inc.

   Written by Philip A. Nelson.

This program 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 of the License, or

(at your option) any later version.

This program 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 this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */

/* You may contact the author by:

       e-mail:  phil@wwu.edu

      us-mail:  Philip A. Nelson

                Computer Science Department

                Western Washington University

                Bellingham, WA 98226

        phone:  (206) 676-3035

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

/* Parameters to gdbm_open for READERS, WRITERS, and WRITERS who

   can create the database. */

#define  GDBM_READER  0

#define  GDBM_WRITER  1

#define  GDBM_WRCREAT 2

#define  GDBM_NEWDB   3

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

#define  GDBM_INSERT  0

#define  GDBM_REPLACE 1

/* The data and key structure.  This structure is defined for compatibility. */

typedef struct {

        char *dptr;

        int   dsize;

      } datum;

/* The file information header. This is good enough for most applications. */

typedef struct {int dummy[10];} *GDBM_FILE;

/* These are the routines! */

extern GDBM_FILE gdbm_open ();

extern void      gdbm_close ();

extern datum     gdbm_fetch ();

extern int       gdbm_store ();

extern int       gdbm_delete ();

extern datum     gdbm_firstkey ();

extern datum     gdbm_nextkey ();

extern int       gdbm_reorganize ();

/* gdbm sends back the following error codes in the variable gdbm_errno. */

typedef enum {  NO_ERROR,

                MALLOC_ERROR,

                BLOCK_SIZE_ERROR,

                FILE_OPEN_ERROR,

                FILE_WRITE_ERROR,

                FILE_SEEK_ERROR,

                FILE_READ_ERROR,

                BAD_MAGIC_NUMBER,

                EMPTY_DATABASE,

                CANT_BE_READER,

                CANT_BE_WRITER,

                READER_CANT_RECOVER,

                READER_CANT_DELETE,

                READER_CANT_STORE,

                READER_CANT_REORGANIZE,

                UNKNOWN_UPDATE,

                ITEM_NOT_FOUND,

                REORGANIZE_FAILED,

                CANNOT_REPLACE}

        gdbm_error;