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authorSergey Poznyakoff <gray@gnu.org.ua>2011-08-03 14:34:31 +0000
committerSergey Poznyakoff <gray@gnu.org.ua>2011-08-03 14:34:31 +0000
commit08f5082e136af01d94e301e74a24b04e41193b6f (patch)
tree4e9ad3cb7fc219a0214eaaf6dc2de7d103d19958 /src/gdbm.h.in
parentaf33ca8d32eff17cb6cd20f68c9d643eda91ba7c (diff)
downloadgdbm-08f5082e136af01d94e301e74a24b04e41193b6f.tar.gz
gdbm-08f5082e136af01d94e301e74a24b04e41193b6f.tar.bz2
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+/* gdbm.h - The include file for dbm users. -*- c -*- */
+
+/* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
+ Copyright (C) 1990, 1991, 1993, 2011 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. If not, see <http://www.gnu.org/licenses/>.
+
+ 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. */
+#define GDBM_NOMMAP 0x80 /* Don't use mmap(). */
+
+/* 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. */
+typedef struct {
+ char *dptr;
+ int dsize;
+ } datum;
+
+
+/* The file information header. This is good enough for most applications. */
+typedef struct gdbm_file_info *GDBM_FILE;
+
+/* External variable, the gdbm build release string. */
+extern const char *gdbm_version;
+
+#define GDBM_VERSION_MAJOR @GDBM_VERSION_MAJOR@
+#define GDBM_VERSION_MINOR @GDBM_VERSION_MINOR@
+#define GDBM_VERSION_PATCH @GDBM_VERSION_PATCH@
+
+extern int const gdbm_version_number[3];
+
+/* GDBM C++ support */
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+/* GDBM external functions. */
+
+extern GDBM_FILE gdbm_open (const char *, int, int, int,
+ void (*)(const char *));
+extern void gdbm_close (GDBM_FILE);
+extern int gdbm_store (GDBM_FILE, datum, datum, int);
+extern datum gdbm_fetch (GDBM_FILE, datum);
+extern int gdbm_delete (GDBM_FILE, datum);
+extern datum gdbm_firstkey (GDBM_FILE);
+extern datum gdbm_nextkey (GDBM_FILE, datum);
+extern int gdbm_reorganize (GDBM_FILE);
+extern void gdbm_sync (GDBM_FILE);
+extern int gdbm_exists (GDBM_FILE, datum);
+extern int gdbm_setopt (GDBM_FILE, int, int *, int);
+extern int gdbm_fdesc (GDBM_FILE);
+extern int gdbm_export (GDBM_FILE, const char *, int, int);
+extern int gdbm_import (GDBM_FILE, const char *, int);
+
+#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
+#define GDBM_BYTE_SWAPPED 21
+#define GDBM_BAD_FILE_OFFSET 22
+#define GDBM_BAD_OPEN_FLAGS 23
+#define _GDBM_MIN_ERRNO 0
+#define _GDBM_MAX_ERRNO GDBM_BAD_OPEN_FLAGS
+typedef int gdbm_error; /* For compatibilities sake. */
+extern gdbm_error gdbm_errno;
+extern const char * const gdbm_errlist[];
+
+/* extra prototypes */
+
+/* GDBM C++ support */
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+extern const char *gdbm_strerror (gdbm_error);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif

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