-/* $Id: isamd-p.h,v 1.6 1999-08-25 18:09:23 heikki Exp $
- * Copyright (c) 1995-1996, Index Data.
- * See the file LICENSE for details.
- * Heikki Levanto
- *
- * log at the end
- */
+/* $Id: isamd-p.h,v 1.13 2003-06-23 15:36:11 adam Exp $
+ Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
+ 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 <bfile.h>
#include <isamd.h>
int no_released;
int no_remap;
- int no_forward;
+ int no_forward; /* stats from pp_read, for isam-c compatibility */
int no_backward;
int sum_forward;
int sum_backward;
int no_next;
int no_prev;
- int no_op_nodiff; /* existing blocks opened for reading without diffs */
- int no_op_intdiff; /* - with internal diffs */
- int no_op_extdiff; /* with separate diff blocks */
- int no_fbuilds; /* number of first-time builds */
- int no_appds; /* number of appends */
- int no_merges; /* number of merges done */
- int no_remerges; /* number of times more than one merge needed */
+ int no_op_diffonly;/* number of opens without mainblock */
+ int no_op_main; /* number of opens with a main block */
char *alloc_buf; /* free-list handling (?) */
int alloc_entries_num;
struct ISAMD_s {
int no_files;
int max_cat;
- ISAMD_M method;
+ ISAMD_M *method;
ISAMD_file files;
+ int last_pos; /* last read/write position for seek stats */
+ int last_cat; /* same for category */
+ int no_read; /* blocks read (in all categories) */
+ int no_write; /* blocks written (in all categories) */
+ int no_op_single;/* singleton "blocks" opened */
+ int no_read_keys;/* number of keys read (occurences of words) */
+ int no_read_main;/* number of main keys read (not diffs) */
+ int no_read_eof; /* number of key sequence ends read (no of words read) */
+ int no_seek_nxt; /* seeks to the next record (fast) */
+ int no_seek_sam; /* seeks to same record (fast) */
+ int no_seek_fwd; /* seeks forward */
+ int no_seek_prv; /* seeks to previous */
+ int no_seek_bak; /* seeks backwards */
+ int no_seek_cat; /* seeks to different category (expensive) */
+ int no_op_new; /* "open"s for new blocks */
+ int no_fbuilds; /* number of first-time builds */
+ int no_appds; /* number of appends */
+ int no_merges; /* number of merges done */
+ int no_non; /* merges without any work */
+ int no_singles; /* new items resulting in singletons */
};
int cat; /* category of this block */
int pos; /* block number of this block */
int next; /* number of the next block */
- int diffs; /* either block or offset (in head) of start of diffs */
- /* will not be used in the improved version! */
+ int diffs; /* not used in the modern isam-d, but kept for stats compatibility */
+ /* never stored on disk, though */
ISAMD is;
void *decodeClientData; /* delta-encoder's own data */
ISAMD_DIFF diffinfo;
/* == 8 */
#define ISAMD_BLOCK_OFFSET_1 (sizeof(int) + \
sizeof(ISAMD_BLOCK_SIZE) + \
- sizeof(int) + \
sizeof(ISAMD_BLOCK_SIZE))
-/* == 16 */
+/* == 12 (was 16) */
+/* sizeof(int) + */
int isamd_alloc_block (ISAMD is, int cat);
int isamd_write_block (ISAMD is, int cat, int pos, char *src);
void isamd_free_diffs(ISAMD_PP pp);
+int is_singleton(ISAMD_P ipos);
+void singleton_decode (int code, struct it_key *k);
+int singleton_encode(struct it_key *k);
+
+
#ifdef __cplusplus
}
#endif
/*
* $Log: isamd-p.h,v $
- * Revision 1.6 1999-08-25 18:09:23 heikki
+ * Revision 1.13 2003-06-23 15:36:11 adam
+ * Implemented isamb_unlink.
+ *
+ * Revision 1.12 2002/11/26 22:18:34 adam
+ * Remove // comments
+ *
+ * Revision 1.11 2002/08/02 19:26:56 adam
+ * Towards GPL
+ *
+ * Revision 1.10 2002/04/29 18:10:24 adam
+ * Newline at end of file
+ *
+ * Revision 1.9 1999/10/05 09:57:40 heikki
+ * Tuning the isam-d (and fixed a small "detail")
+ *
+ * Revision 1.8 1999/09/23 18:01:18 heikki
+ * singleton optimising
+ *
+ * Revision 1.7 1999/09/20 15:48:06 heikki
+ * Small changes
+ *
+ * Revision 1.6 1999/08/25 18:09:23 heikki
* Starting to optimize
*
* Revision 1.5 1999/08/20 12:25:58 heikki
* Copied from isamh, starting to change things...
*
*
- */
\ No newline at end of file
+ */
+
projects / idzebra-moved-to-github.git / blobdiff