-/*
- * Copyright (C) 1994, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: mfile.h,v $
- * Revision 1.3 1995-09-04 12:33:35 adam
- * Various cleanup. YAZ util used instead.
- *
- * Revision 1.2 1994/09/14 13:10:36 quinn
- * Small changes
- *
- * Revision 1.1 1994/08/23 14:41:46 quinn
- * First functional version of mfile.
- *
- */
+/* $Id: mfile.h,v 1.18 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 MFILE_H
#define MFILE_H
#include <stdio.h>
+#include <yaz/yconfig.h>
-#include <alexutil.h>
+#ifdef WIN32
+typedef long off_t;
+#else
+#include <sys/types.h>
+#endif
+
+#ifndef FILENAME_MAX
+#include <sys/param.h>
+#define FILENAME_MAX MAXPATHLEN
+#endif
+
+#include <zebra-lock.h>
+
+YAZ_BEGIN_CDECL
#define MF_MIN_BLOCKS_CREAT 1 /* minimum free blocks in new dir */
-#define MF_DEFAULT_AREA "register" /* Use if no mf_init */
#define MF_MAX_PARTS 28 /* max # of part-files per metafile */
#define mf_blocksize(mf) ((mf)->blocksize)
+
typedef struct mf_dir
{
char name[FILENAME_MAX+1];
- int max_bytes; /* allocated bytes in this dir. */
- int avail_bytes; /* bytes left */
+ off_t max_bytes; /* allocated bytes in this dir. */
+ off_t avail_bytes; /* bytes left */
struct mf_dir *next;
} mf_dir;
int number;
int top;
int blocks;
- int bytes;
+ off_t bytes;
mf_dir *dir;
char *path;
int fd;
int no_files;
int cur_file;
int open; /* is this file open? */
- int blocksize;
- int min_bytes_creat; /* minimum bytes required to enter directory */
+ off_t blocksize;
+ off_t min_bytes_creat; /* minimum bytes required to enter directory */
MFile_area ma;
int wr;
+ Zebra_mutex mutex;
struct meta_file *next;
} *MFile, meta_file;
mf_dir *dirs;
struct meta_file *mfiles;
struct MFile_area_struct *next; /* global list of active areas */
+ Zebra_mutex mutex;
} MFile_area_struct;
/*
* Open an area, cotaining metafiles in directories.
*/
-MFile_area mf_init(const char *name);
+MFile_area mf_init(const char *name, const char *spec, const char *base);
/*
* Release an area.
*/
-int mf_dispose(MFile_area ma);
+void mf_destroy(MFile_area ma);
/*
* Open a metafile.
/*
* Read one block from a metafile. Interface mirrors bfile.
*/
-int mf_read(MFile mf, int no, int offset, int num, void *buf);
+int mf_read(MFile mf, int no, int offset, int nbytes, void *buf);
/*
* Same.
*/
-int mf_write(MFile mf, int no, int offset, int num, const void *buf);
+int mf_write(MFile mf, int no, int offset, int nbytes, const void *buf);
/*
* Destroy a metafile, unlinking component files. File must be open.
*/
int mf_unlink(MFile mf);
+
+/*
+ * Destroy all metafiles. No files may be opened.
+ */
+void mf_reset(MFile_area ma);
+
/*
* Unlink the file by name, rather than MFile-handle.
*/
int mf_unlink_name(MFile_area, const char *name);
+YAZ_END_CDECL
+
#endif