1999-05-03 07:29:11 +00:00
|
|
|
/* 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
|
2005-05-10 10:21:13 +00:00
|
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
/* 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;
|
