-/*
- * Copyright (C) 1994-1997, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: bfile.h,v $
- * Revision 1.14 1997-09-05 15:29:58 adam
- * Changed prototype for chr_map_input - added const.
- * Added support for C++, headers uses extern "C" for public definitions.
- *
- * Revision 1.13 1996/10/29 13:43:07 adam
- * Added a few comments.
- *
- * Revision 1.12 1996/03/26 16:00:44 adam
- * The directory of the shadow table can be specified by the new
- * bf_lockDir call.
- *
- * Revision 1.11 1995/12/08 16:20:39 adam
- * New commit utilities - used for 'save' update.
- *
- * Revision 1.10 1995/12/01 16:24:33 adam
- * Commit files use separate meta file area.
- *
- * Revision 1.9 1995/12/01 11:37:46 adam
- * Cached/commit files implemented as meta-files.
- *
- * Revision 1.8 1995/11/30 08:33:29 adam
- * Started work on commit facility.
- *
- * Revision 1.7 1995/09/04 12:33:35 adam
- * Various cleanup. YAZ util used instead.
- *
- * Revision 1.6 1994/09/14 13:10:35 quinn
- * Small changes
- *
- * Revision 1.5 1994/08/24 08:45:52 quinn
- * Using mfile.
- *
- * Revision 1.4 1994/08/17 15:38:28 adam
- * Include of util.h.
- *
- * Revision 1.3 1994/08/17 14:09:47 quinn
- * Small changes
- *
- */
+/* $Id: bfile.h,v 1.21 2002-08-02 19:26:55 adam Exp $
+ Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+ Index Data Aps
+
+This file is part of the Zebra server.
+
+Zebra 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.
+
+Zebra 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 Zebra; see the file LICENSE.zebra. If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+*/
+
+
#ifndef BFILE_H
#define BFILE_H
#define bf_blocksize(bf) mf_blocksize(bf->mf)
+typedef struct BFiles_struct *BFiles;
+
+BFiles bfs_create (const char *spec, const char *base);
+void bfs_destroy (BFiles bfiles);
+
typedef struct BFile_struct
{
MFile mf;
+ Zebra_lock_rdwr rdwr_lock;
struct CFile_struct *cf;
} *BFile, BFile_struct;
opens bfile with name 'name' and with 'block_size' as block size.
returns bfile handle is successful; NULL otherwise
*/
-BFile bf_open (const char *name, int block_size, int wflag);
+BFile bf_open (BFiles bfs, const char *name, int block_size, int wflag);
/* bf_read: reads bytes from bfile 'bf'.
- reads 'num' bytes (or whole block if 0) from offset 'offset' from
+ reads 'nbytes' bytes (or whole block if 0) from offset 'offset' from
block 'no'. stores contents in buffer 'buf'.
returns 1 if whole block could be read; 0 otherwise.
*/
-int bf_read (BFile bf, int no, int offset, int num, void *buf);
+int bf_read (BFile bf, int no, int offset, int nbytes, void *buf);
/* bf_write: writes bytes to bfile 'bf'.
- writes 'num' bytes (or whole block if 0) at offset 'offset' to
+ writes 'nbytes' bytes (or whole block if 0) at offset 'offset' to
block 'no'. retrieves contents from buffer 'buf'.
returns 0 if successful; non-zero otherwise.
*/
-int bf_write (BFile bf, int no, int offset, int num, const void *buf);
+int bf_write (BFile bf, int no, int offset, int nbytes, const void *buf);
-/* bf_cache: enables/disables bfile cache */
-void bf_cache (int enableFlag);
-
-/* bf_lockDir: specifies locking directory for the cache system */
-void bf_lockDir (const char *lockDir);
+/* bf_cache: enables bfile cache if spec is not NULL */
+void bf_cache (BFiles bfs, const char *spec);
/* bf_commitExists: returns 1 if commit is pending; 0 otherwise */
-int bf_commitExists (void);
+int bf_commitExists (BFiles bfs);
/* bf_commitExec: executes commit */
-void bf_commitExec (void);
+void bf_commitExec (BFiles bfs);
/* bf_commitClean: cleans commit files, etc */
-void bf_commitClean (void);
+void bf_commitClean (BFiles bfs, const char *spec);
+
+/* bf_reset: delete register and shadow completely */
+void bf_reset (BFiles bfs);
#ifdef __cplusplus
}