-/* $Id: merge.c,v 1.23 2003-06-23 15:36:11 adam Exp $
- Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+/* $Id: merge.c,v 1.24 2004-08-04 08:35:24 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.
02111-1307, USA.
*/
-
-
#include <stdlib.h>
#include <assert.h>
#include <string.h>
struct isc_merge_block {
int offset; /* offset in r_buf */
- int block; /* block number of file (0 if none) */
+ zint block; /* block number of file (0 if none) */
int dirty; /* block is different from that on file */
};
#endif
static void flush_blocks (ISAMC is, struct isc_merge_block *mb, int ptr,
- char *r_buf, int *firstpos, int cat, int last,
- int *numkeys)
+ char *r_buf, zint *firstpos, int cat, int last,
+ zint *numkeys)
{
int i;
if (!*firstpos)
*firstpos = mb[i].block;
if (is->method->debug > 2)
- logf (LOG_LOG, "isc: skip ptr=%d size=%d %d %d",
+ logf (LOG_LOG, "isc: skip ptr=%d size=%d %d " ZINT_FORMAT,
i, ssize, cat, mb[i].block);
++(is->files[cat].no_skip_writes);
continue;
src = r_buf + mb[i].offset - ISAMC_BLOCK_OFFSET_1;
ssize += ISAMC_BLOCK_OFFSET_1;
- memcpy (src+sizeof(int)+sizeof(ssize), numkeys,
- sizeof(*numkeys));
+ memcpy (src+sizeof(zint)+sizeof(ssize), numkeys, sizeof(*numkeys));
if (is->method->debug > 2)
- logf (LOG_LOG, "isc: flush ptr=%d numk=%d size=%d nextpos=%d",
- i, *numkeys, (int) ssize, mb[i+1].block);
+ logf (LOG_LOG, "isc: flush ptr=%d numk=" ZINT_FORMAT " size=%d nextpos="
+ ZINT_FORMAT, i, *numkeys, (int) ssize, mb[i+1].block);
}
else
{
src = r_buf + mb[i].offset - ISAMC_BLOCK_OFFSET_N;
ssize += ISAMC_BLOCK_OFFSET_N;
if (is->method->debug > 2)
- logf (LOG_LOG, "isc: flush ptr=%d size=%d nextpos=%d",
+ logf (LOG_LOG, "isc: flush ptr=%d size=%d nextpos=" ZINT_FORMAT,
i, (int) ssize, mb[i+1].block);
}
- memcpy (src, &mb[i+1].block, sizeof(int));
- memcpy (src+sizeof(int), &ssize, sizeof(ssize));
+ memcpy (src, &mb[i+1].block, sizeof(zint));
+ memcpy (src+sizeof(zint), &ssize, sizeof(ssize));
isc_write_block (is, cat, mb[i].block, src);
}
}
struct isc_merge_block mb[200];
- int firstpos = 0;
+ zint firstpos = 0;
int cat = 0;
char r_item_buf[128]; /* temporary result output */
char *r_buf; /* block with resulting data */
int ptr = 0; /* pointer */
void *r_clientData; /* encode client data */
int border;
- int numKeys = 0;
+ zint numKeys = 0;
- r_clientData = (*is->method->code_start)(ISAMC_ENCODE);
+ r_clientData = (*is->method->codec.start)();
r_buf = is->merge_buf + 128;
pp = isc_pp_open (is, ipos);
cat = pp->cat;
if (debug > 1)
- logf (LOG_LOG, "isc: isc_merge begin %d %d", cat, pp->pos);
+ logf (LOG_LOG, "isc: isc_merge begin %d " ZINT_FORMAT, cat, pp->pos);
/* read first item from i */
i_item_ptr = i_item;
if (r_item) /* insert resulting item? */
{
char *r_out_ptr = r_buf + r_offset;
+ const char *src = r_item;
int new_offset;
- (*is->method->code_item)(ISAMC_ENCODE, r_clientData,
- &r_out_ptr, &r_item);
+ (*is->method->codec.encode)(r_clientData, &r_out_ptr, &src);
new_offset = r_out_ptr - r_buf;
numKeys++;
if (numKeys != isc_pp_num (pp))
{
if (debug > 2)
- logf (LOG_LOG, "isc: patch num keys firstpos=%d num=%d",
+ logf (LOG_LOG, "isc: patch num keys firstpos=" ZINT_FORMAT " num=" ZINT_FORMAT,
firstpos, numKeys);
bf_write (is->files[cat].bf, firstpos, ISAMC_BLOCK_OFFSET_N,
sizeof(numKeys), &numKeys);
/* flush rest of block(s) in r_buf */
flush_blocks (is, mb, ptr, r_buf, &firstpos, cat, 1, &numKeys);
- (*is->method->code_stop)(ISAMC_ENCODE, r_clientData);
+ (*is->method->codec.stop)(r_clientData);
if (!firstpos)
cat = 0;
if (debug > 1)
- logf (LOG_LOG, "isc: isc_merge return %d %d", cat, firstpos);
+ logf (LOG_LOG, "isc: isc_merge return %d " ZINT_FORMAT, cat, firstpos);
isc_pp_close (pp);
return cat + firstpos * 8;
}
-/*
- * $Log: merge.c,v $
- * Revision 1.23 2003-06-23 15:36:11 adam
- * Implemented isamb_unlink.
- *
- * Revision 1.22 2003/03/05 16:41:10 adam
- * Fix GCC warnings
- *
- * Revision 1.21 2002/08/02 19:26:56 adam
- * Towards GPL
- *
- * 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 12:12:07 heikki
- * Large-block isam-h (may not work too well... Abandoning for isam-d)
- *
- * Revision 1.17 1999/07/13 14:22:17 heikki
- * Better allocation strategy in isamh_merge
- *
- * Revision 1.16 1999/07/08 14:23:27 heikki
- * Fixed a bug in isamh_pp_read and cleaned up a bit
- *
- * Revision 1.15 1999/07/07 09:36:04 heikki
- * Fixed an assertion in isamh
- *
- * Revision 1.13 1999/07/06 09:37:05 heikki
- * Working on isamh - not ready yet.
- *
- * Revision 1.12 1999/06/30 15:03:55 heikki
- * first take on isamh, the append-only isam structure
- *
- * Revision 1.11 1999/05/26 07:49:14 adam
- * C++ compilation.
- *
- * Revision 1.10 1998/03/19 12:22:09 adam
- * Minor change.
- *
- * Revision 1.9 1998/03/19 10:04:38 adam
- * Minor changes.
- *
- * Revision 1.8 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 1.7 1998/03/11 11:18:18 adam
- * Changed the isc_merge to take into account the mfill (minimum-fill).
- *
- * Revision 1.6 1998/03/06 13:54:03 adam
- * Fixed two nasty bugs in isc_merge.
- *
- * Revision 1.5 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 1.4 1996/11/08 11:15:31 adam
- * Number of keys in chain are stored in first block and the function
- * to retrieve this information, isc_pp_num is implemented.
- *
- * Revision 1.3 1996/11/04 14:08:59 adam
- * Optimized free block usage.
- *
- * Revision 1.2 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 1.1 1996/11/01 08:59:15 adam
- * First version of isc_merge that supports update/delete.
- *
- */
-
-
projects / idzebra-moved-to-github.git / blobdiff