-/* $Id: isamc-p.h,v 1.9 2003-06-23 15:36:11 adam Exp $
- Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
- Index Data Aps
+/* $Id: isamc-p.h,v 1.14 2005-01-15 19:38:31 adam Exp $
+ Copyright (C) 1995-2005
+ Index Data ApS
This file is part of the Zebra server.
-#include <bfile.h>
-#include <isamc.h>
+#include <idzebra/bfile.h>
+#include <idzebra/isamc.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
+YAZ_BEGIN_CDECL
typedef struct {
- int lastblock;
- int freelist;
+ zint lastblock;
+ zint freelist;
} ISAMC_head;
typedef unsigned ISAMC_BLOCK_SIZE;
int no_forward;
int no_backward;
- int sum_forward;
- int sum_backward;
+ zint sum_forward;
+ zint sum_backward;
int no_next;
int no_prev;
int alloc_entries_max;
int fc_max;
- int *fc_list;
+ zint *fc_list;
} *ISAMC_file;
struct ISAMC_s {
ISAMC_BLOCK_SIZE offset;
ISAMC_BLOCK_SIZE size;
int cat;
- int pos;
- int next;
+ zint pos;
+ zint next;
ISAMC is;
void *decodeClientData;
int deleteFlag;
- int numKeys;
+ zint numKeys;
};
-#define ISAMC_BLOCK_OFFSET_N (sizeof(int)+sizeof(ISAMC_BLOCK_SIZE))
-#define ISAMC_BLOCK_OFFSET_1 (sizeof(int)+sizeof(ISAMC_BLOCK_SIZE)+sizeof(int))
-int isc_alloc_block (ISAMC is, int cat);
-void isc_release_block (ISAMC is, int cat, int pos);
-int isc_read_block (ISAMC is, int cat, int pos, char *dst);
-int isc_write_block (ISAMC is, int cat, int pos, char *src);
+/*
+ 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
-#ifdef __cplusplus
-}
-#endif