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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 0x10 /* Write fast! => No fsyncs. OBSOLETE. */
- #define GDBM_SYNC 0x20 /* Sync operations to the disk. */
- #define GDBM_NOLOCK 0x40 /* Don't do file locking operations. */
- /* 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. */
- #define GDBM_FASTMODE 2 /* Toggle fast mode. OBSOLETE. */
- #define GDBM_SYNCMODE 3 /* Turn on or off sync operations. */
- #define GDBM_CENTFREE 4 /* Keep all free blocks in the header. */
- #define GDBM_COALESCEBLKS 5 /* Attempt to coalesce free blocks. */
- /* 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 */
- #ifndef __P
- #if defined(__STDC__) || defined(__cplusplus) || defined(c_plusplus)
- #define __P(x) x
- #else
- #define __P(x) ()
- #endif
- #endif
- /* 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 __P((char *, int, int, int, void (*)()));
- extern void gdbm_close __P((GDBM_FILE));
- extern int gdbm_store __P((GDBM_FILE, datum, datum, int));
- extern datum gdbm_fetch __P((GDBM_FILE, datum));
- extern int gdbm_delete __P((GDBM_FILE, datum));
- extern datum gdbm_firstkey __P((GDBM_FILE));
- extern datum gdbm_nextkey __P((GDBM_FILE, datum));
- extern int gdbm_reorganize __P((GDBM_FILE));
- extern void gdbm_sync __P((GDBM_FILE));
- extern int gdbm_exists __P((GDBM_FILE, datum));
- extern int gdbm_setopt __P((GDBM_FILE, int, int *, int));
- extern int gdbm_fdesc __P((GDBM_FILE));
- #if defined(__cplusplus) || defined(c_plusplus)
- }
- #endif
- #define GDBM_NO_ERROR 0
- #define GDBM_MALLOC_ERROR 1
- #define GDBM_BLOCK_SIZE_ERROR 2
- #define GDBM_FILE_OPEN_ERROR 3
- #define GDBM_FILE_WRITE_ERROR 4
- #define GDBM_FILE_SEEK_ERROR 5
- #define GDBM_FILE_READ_ERROR 6
- #define GDBM_BAD_MAGIC_NUMBER 7
- #define GDBM_EMPTY_DATABASE 8
- #define GDBM_CANT_BE_READER 9
- #define GDBM_CANT_BE_WRITER 10
- #define GDBM_READER_CANT_DELETE 11
- #define GDBM_READER_CANT_STORE 12
- #define GDBM_READER_CANT_REORGANIZE 13
- #define GDBM_UNKNOWN_UPDATE 14
- #define GDBM_ITEM_NOT_FOUND 15
- #define GDBM_REORGANIZE_FAILED 16
- #define GDBM_CANNOT_REPLACE 17
- #define GDBM_ILLEGAL_DATA 18
- #define GDBM_OPT_ALREADY_SET 19
- #define GDBM_OPT_ILLEGAL 20
- typedef int gdbm_error; /* For compatibilities sake. */
- extern gdbm_error gdbm_errno;
- /* extra prototypes */
- /* GDBM C++ support */
- #if defined(__cplusplus) || defined(c_plusplus)
- extern "C" {
- #endif
- extern char *gdbm_strerror __P((gdbm_error));
- #if defined(__cplusplus) || defined(c_plusplus)
- }
- #endif
- #endif
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