gdbm.h
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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;