Move/refactoring of public interfaces..

[idzebra-moved-to-github.git] / isamc / isamc-p.h

diff --git a/isamc/isamc-p.h b/isamc/isamc-p.h
index 47015c0..148096d 100644 (file)
--- a/isamc/isamc-p.h
+++ b/isamc/isamc-p.h
@@ -1,45 +1,106 @@
-/*
- * Copyright (c) 1995-1996, Index Data.
- * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: isamc-p.h,v $
- * Revision 1.1  1996-10-29 13:40:47  adam
- * First work.
- *
- */
-
-#include <bfile.h>
+/* $Id: isamc-p.h,v 1.12 2004-12-08 12:23:10 adam Exp $
+   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
+   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.
+*/
+
+
+
+#include <idzebra/bfile.h>
 #include <isamc.h>
 
+YAZ_BEGIN_CDECL
+
 typedef struct {
-    int lastblock;
-    int freelist;
+    zint lastblock;
+    zint freelist;
 } ISAMC_head;
 
+typedef unsigned ISAMC_BLOCK_SIZE;
+
 typedef struct ISAMC_file_s {
     ISAMC_head head;
     BFile bf;
     int head_is_dirty;
+    
+    int no_writes;
+    int no_reads;
+    int no_skip_writes;
+    int no_allocated;
+    int no_released;
+    int no_remap;
+
+    int no_forward;
+    int no_backward;
+    zint sum_forward;
+    zint sum_backward;
+    int no_next;
+    int no_prev;
+
+    char *alloc_buf;
+    int alloc_entries_num;
+    int alloc_entries_max;
+
+    int fc_max;
+    zint *fc_list;
 } *ISAMC_file;
 
 struct ISAMC_s {
     int no_files;
     int max_cat;
-    char *r_buf;
-    ISAMC_M method;
+    char *merge_buf;
+    ISAMC_M *method;
     ISAMC_file files;
 }; 
 
 struct ISAMC_PP_s {
     char *buf;
-    int offset;
-    int size;
+    ISAMC_BLOCK_SIZE offset;
+    ISAMC_BLOCK_SIZE size;
     int cat;
-    int pos;
-    int next;
+    zint pos;
+    zint next;
     ISAMC is;
     void *decodeClientData;
+    int deleteFlag;
+    zint numKeys;
 };
 
-#define ISAMC_BLOCK_OFFSET (sizeof(int)+sizeof(int))    
+/* 
+  first block consists of
+      next pointer : zint
+      size         : ISAMC_BLOCK_SIZE (int)
+      numkeys      : zint
+      data
+  other blocks consists of
+      next pointer : zint
+      size :         ISAMC_BLOCK_SIZE (int)
+      data
+*/
+#define ISAMC_BLOCK_OFFSET_1 (sizeof(zint)+sizeof(ISAMC_BLOCK_SIZE)+sizeof(zint)) 
+#define ISAMC_BLOCK_OFFSET_N (sizeof(zint)+sizeof(ISAMC_BLOCK_SIZE)) 
+
+zint isc_alloc_block (ISAMC is, int cat);
+void isc_release_block (ISAMC is, int cat, zint pos);
+int isc_read_block (ISAMC is, int cat, zint pos, char *dst);
+int isc_write_block (ISAMC is, int cat, zint pos, char *src);
+
+YAZ_END_CDECL
+
+