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- /* gdbm.h - The include file for dbm users. */
-
- /* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
- Copyright (C) 1990, 1991, 1993 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; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- You may contact the author by:
- e-mail: phil@cs.wwu.edu
- us-mail: Philip A. Nelson
- Computer Science Department
- Western Washington University
- Bellingham, WA 98226
-
- *************************************************************************/
-
- /* Protection for multiple includes. */
- #ifndef _GDBM_H_
- #define _GDBM_H_
-
- /* Parameters to gdbm_open for READERS, WRITERS, and WRITERS who
- can create the database. */
- #define GDBM_READER 0 /* A reader. */
- #define GDBM_WRITER 1 /* A writer. */
- #define GDBM_WRCREAT 2 /* A writer. Create the db if needed. */
- #define GDBM_NEWDB 3 /* A writer. Always create a new db. */
- #define GDBM_FAST 16 /* Write fast! => No fsyncs. */
-
- /* Parameters to gdbm_store for simple insertion or replacement in the
- case that the key is already in the database. */
- #define GDBM_INSERT 0 /* Never replace old data with new. */
- #define GDBM_REPLACE 1 /* Always replace old data with new. */
-
- /* Parameters to gdbm_setopt, specifing the type of operation to perform. */
- #define GDBM_CACHESIZE 1 /* Set the cache size. */
-
- /* 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;
-
- /* Determine if the C(++) compiler requires complete function prototype */
- #if __STDC__ || defined(__cplusplus) || defined(c_plusplus)
- #define GDBM_Proto(x) x
- #else
- #define GDBM_Proto(x) ()
- #endif /* NeedFunctionPrototypes */
-
- /* External variable, the gdbm build release string. */
- extern char *gdbm_version;
-
-
- /* GDBM C++ support */
- #if defined(__cplusplus) || defined(c_plusplus)
- extern "C" {
- #endif
-
- /* These are the routines! */
-
- extern GDBM_FILE gdbm_open GDBM_Proto((
- char *file,
- int block_size,
- int flags,
- int mode,
- void (*fatal_func)()
- ));
-
- extern void gdbm_close GDBM_Proto((
- GDBM_FILE dbf
- ));
-
- extern int gdbm_store GDBM_Proto((
- GDBM_FILE dbf,
- datum key,
- datum content,
- int flags
- ));
-
- extern datum gdbm_fetch GDBM_Proto((
- GDBM_FILE dbf,
- datum key
- ));
-
- extern int gdbm_delete GDBM_Proto((
- GDBM_FILE dbf,
- datum key
- ));
-
- extern datum gdbm_firstkey GDBM_Proto((
- GDBM_FILE dbf
- ));
-
- extern datum gdbm_nextkey GDBM_Proto((
- GDBM_FILE dbf,
- datum key
- ));
-
- extern int gdbm_reorganize GDBM_Proto((
- GDBM_FILE dbf
- ));
-
- extern void gdbm_sync GDBM_Proto((
- GDBM_FILE dbf
- ));
-
- extern int gdbm_exists GDBM_Proto((
- GDBM_FILE dbf,
- datum key
- ));
-
- extern int gdbm_setopt GDBM_Proto((
- GDBM_FILE dbf,
- int optflag,
- int *optval,
- int optlen
- ));
-
- #if defined(__cplusplus) || defined(c_plusplus)
- }
- #endif
-
- /* gdbm sends back the following error codes in the variable gdbm_errno. */
- typedef enum { GDBM_NO_ERROR,
- GDBM_MALLOC_ERROR,
- GDBM_BLOCK_SIZE_ERROR,
- GDBM_FILE_OPEN_ERROR,
- GDBM_FILE_WRITE_ERROR,
- GDBM_FILE_SEEK_ERROR,
- GDBM_FILE_READ_ERROR,
- GDBM_BAD_MAGIC_NUMBER,
- GDBM_EMPTY_DATABASE,
- GDBM_CANT_BE_READER,
- GDBM_CANT_BE_WRITER,
- GDBM_READER_CANT_DELETE,
- GDBM_READER_CANT_STORE,
- GDBM_READER_CANT_REORGANIZE,
- GDBM_UNKNOWN_UPDATE,
- GDBM_ITEM_NOT_FOUND,
- GDBM_REORGANIZE_FAILED,
- GDBM_CANNOT_REPLACE,
- GDBM_ILLEGAL_DATA,
- GDBM_OPT_ALREADY_SET,
- GDBM_OPT_ILLEGAL}
- gdbm_error;
- extern gdbm_error gdbm_errno;
-
- /* extra prototypes */
-
- /* GDBM C++ support */
- #if defined(__cplusplus) || defined(c_plusplus)
- extern "C" {
- #endif
-
- extern char *gdbm_strerror GDBM_Proto((
- gdbm_error error
- ));
-
- #if defined(__cplusplus) || defined(c_plusplus)
- }
- #endif
-
- #endif
-