New method log_item for the various isams to print log an item (for debug)

[idzebra-moved-to-github.git] / isamc / isamc.c

diff --git a/isamc/isamc.c b/isamc/isamc.c
index 28b71ce..9374da3 100644 (file)
--- a/isamc/isamc.c
+++ b/isamc/isamc.c
@@ -1,82 +1,26 @@
-/*
- * Copyright (c) 1995-1998, Index Data.
- * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: isamc.c,v $
- * Revision 1.20  1999-11-30 13:48:04  adam
- * Improved installation. Updated for inclusion of YAZ header files.
- *
- * Revision 1.19  1999/07/14 10:59:27  adam
- * Changed functions isc_getmethod, isams_getmethod.
- * Improved fatal error handling (such as missing EXPLAIN schema).
- *
- * Revision 1.18  1999/06/30 09:08:23  adam
- * Added coder to reset.
- *
- * Revision 1.17  1999/05/26 07:49:14  adam
- * C++ compilation.
- *
- * Revision 1.16  1998/05/27 14:32:03  adam
- * Changed default block category layout.
- *
- * Revision 1.15  1998/05/20 10:12:25  adam
- * Implemented automatic EXPLAIN database maintenance.
- * Modified Zebra to work with ASN.1 compiled version of YAZ.
- *
- * Revision 1.14  1998/03/19 10:04:35  adam
- * Minor changes.
- *
- * Revision 1.13  1998/03/18 09:23:55  adam
- * Blocks are stored in chunks on free list - up to factor 2 in speed.
- * Fixed bug that could occur in block category rearrangemen.
- *
- * Revision 1.12  1998/03/16 10:37:24  adam
- * Added more statistics.
- *
- * Revision 1.11  1998/03/13 15:30:50  adam
- * New functions isc_block_used and isc_block_size. Fixed 'leak'
- * in isc_alloc_block.
- *
- * Revision 1.10  1998/03/11 11:18:18  adam
- * Changed the isc_merge to take into account the mfill (minimum-fill).
- *
- * Revision 1.9  1998/03/06 13:54:02  adam
- * Fixed two nasty bugs in isc_merge.
- *
- * Revision 1.8  1997/09/17 12:19:20  adam
- * Zebra version corresponds to YAZ version 1.4.
- * Changed Zebra server so that it doesn't depend on global common_resource.
- *
- * Revision 1.7  1997/02/12 20:42:43  adam
- * Bug fix: during isc_merge operations, some pages weren't marked dirty
- * even though they should be. At this point the merge operation marks
- * a page dirty if the previous page changed at all. A better approach is
- * to mark it dirty if the last key written changed in previous page.
- *
- * Revision 1.6  1996/11/08 11:15:29  adam
- * Number of keys in chain are stored in first block and the function
- * to retrieve this information, isc_pp_num is implemented.
- *
- * Revision 1.5  1996/11/04 14:08:57  adam
- * Optimized free block usage.
- *
- * Revision 1.4  1996/11/01 13:36:46  adam
- * New element, max_blocks_mem, that control how many blocks of max size
- * to store in memory during isc_merge.
- * Function isc_merge now ignores delete/update of identical keys and
- * the proper blocks are then non-dirty and not written in flush_blocks.
- *
- * Revision 1.3  1996/11/01  08:59:14  adam
- * First version of isc_merge that supports update/delete.
- *
- * Revision 1.2  1996/10/29 16:44:56  adam
- * Work on isc_merge.
- *
- * Revision 1.1  1996/10/29  13:40:48  adam
- * First work.
- *
- */
+/* $Id: isamc.c,v 1.24 2004-06-01 12:56:39 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.
+*/
+
+
 
 /* 
  * TODO:
@@ -98,7 +42,7 @@ static void init_fc (ISAMC is, int cat);
 
 #define SMALL_TEST 0
 
-void isc_getmethod (ISAMC_M m)
+void isc_getmethod (ISAMC_M *m)
 {
 
     static struct ISAMC_filecat_s def_cat[] = {
@@ -106,7 +50,7 @@ void isc_getmethod (ISAMC_M m)
         {    32,     28,      0,  3 },
        {    64,     54,     30,  0 },
 #else
-        {    24,     22,     18,  10 },
+        {    32,     26,     20,  10 },
        {   128,    120,    100,  10 },
         {   512,    490,    350,  10 },
         {  2048,   1900,   1700,  10 },
@@ -122,13 +66,14 @@ void isc_getmethod (ISAMC_M m)
     m->code_reset = NULL;
 
     m->compare_item = NULL;
+    m->log_item = NULL;
 
     m->debug = 1;
 
     m->max_blocks_mem = 10;
 }
 
-ISAMC isc_open (BFiles bfs, const char *name, int writeflag, ISAMC_M method)
+ISAMC isc_open (BFiles bfs, const char *name, int writeflag, ISAMC_M *method)
 {
     ISAMC is;
     ISAMC_filecat filecat;
@@ -137,7 +82,7 @@ ISAMC isc_open (BFiles bfs, const char *name, int writeflag, ISAMC_M method)
 
     is = (ISAMC) xmalloc (sizeof(*is));
 
-    is->method = (ISAMC_M) xmalloc (sizeof(*is->method));
+    is->method = (ISAMC_M *) xmalloc (sizeof(*is->method));
     memcpy (is->method, method, sizeof(*method));
     filecat = is->method->filecat;
     assert (filecat);