-/*
- * Copyright (C) 1994-1999, Index Data
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: trunc.c,v $
- * Revision 1.13 1999-05-12 13:08:06 adam
- * First version of ISAMS.
- *
- * Revision 1.12 1999/02/02 14:51:10 adam
- * Updated WIN32 code specific sections. Changed header.
- *
- * Revision 1.11 1998/03/25 13:48:02 adam
- * Fixed bug in rset_trunc_r.
- *
- * Revision 1.10 1998/03/05 08:45:13 adam
- * New result set model and modular ranking system. Moved towards
- * descent server API. System information stored as "SGML" records.
- *
- * Revision 1.9 1998/01/12 15:04:09 adam
- * The test option (-s) only uses read-lock (and not write lock).
- *
- * Revision 1.8 1997/10/31 12:34:27 adam
- * Bug fix: memory leak.
- *
- * Revision 1.7 1997/09/29 09:07:29 adam
- * Minor change.
- *
- * Revision 1.6 1997/09/22 12:39:06 adam
- * Added get_pos method for the ranked result sets.
- *
- * Revision 1.5 1997/09/17 12:19:17 adam
- * Zebra version corresponds to YAZ version 1.4.
- * Changed Zebra server so that it doesn't depend on global common_resource.
- *
- * Revision 1.4 1996/12/23 15:30:44 adam
- * Work on truncation.
- * Bug fix: result sets weren't deleted after server shut down.
- *
- * Revision 1.3 1996/12/20 11:07:14 adam
- * Multi-or result set.
- *
- * Revision 1.2 1996/11/08 11:10:28 adam
- * Buffers used during file match got bigger.
- * Compressed ISAM support everywhere.
- * Bug fixes regarding masking characters in queries.
- * Redesigned Regexp-2 queries.
- *
- * Revision 1.1 1996/11/04 14:07:40 adam
- * Moved truncation code to trunc.c.
- *
- */
-#include <stdio.h>
-#include <assert.h>
+/* $Id: trunc.c,v 1.43 2004-09-03 14:59:49 heikki Exp $
+ Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
+ Index Data Aps
+
+This file is part of the Zebra server.
-#include "zserver.h"
-#include <rstemp.h>
-#include <rsisam.h>
-#include <rsisamc.h>
-#include <rsisams.h>
-#include <rsnull.h>
+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.
-#define NEW_TRUNC 1
+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.
-#if NEW_TRUNC
-#include <rsm_or.h>
-#endif
+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 <stdio.h>
+#include <assert.h>
+
+#include "index.h"
+#include <rset.h>
struct trunc_info {
int *ptr;
int (*cmp)(const void *p1,
const void *p2))
{
- struct trunc_info *ti = xmalloc (sizeof(*ti));
+ struct trunc_info *ti = (struct trunc_info *) xmalloc (sizeof(*ti));
int i;
++size;
ti->heapnum = 0;
ti->keysize = key_size;
ti->cmp = cmp;
- ti->indx = xmalloc (size * sizeof(*ti->indx));
- ti->heap = xmalloc (size * sizeof(*ti->heap));
- ti->ptr = xmalloc (size * sizeof(*ti->ptr));
- ti->swapbuf = xmalloc (ti->keysize);
- ti->tmpbuf = xmalloc (ti->keysize);
- ti->buf = xmalloc (size * ti->keysize);
+ ti->indx = (int *) xmalloc (size * sizeof(*ti->indx));
+ ti->heap = (char **) xmalloc (size * sizeof(*ti->heap));
+ ti->ptr = (int *) xmalloc (size * sizeof(*ti->ptr));
+ ti->swapbuf = (char *) xmalloc (ti->keysize);
+ ti->tmpbuf = (char *) xmalloc (ti->keysize);
+ ti->buf = (char *) xmalloc (size * ti->keysize);
for (i = size; --i >= 0; )
{
ti->ptr[i] = i;
}
static RSET rset_trunc_r (ZebraHandle zi, const char *term, int length,
- const char *flags, ISAM_P *isam_p, int from, int to,
- int merge_chunk)
+ const char *flags, ISAMS_P *isam_p, int from, int to,
+ int merge_chunk, int preserve_position,
+ int term_type, NMEM rset_nmem,
+ const struct key_control *kctrl)
{
RSET result;
RSFD result_rsfd;
- rset_temp_parms parms;
+ int nn = 0;
+ /*
+ rset_temp_parms parms;
+ parms.cmp = key_compare_it;
parms.key_size = sizeof(struct it_key);
parms.temp_path = res_get (zi->res, "setTmpDir");
- parms.rset_term = rset_term_create (term, length, flags);
result = rset_create (rset_kind_temp, &parms);
+ */
+ result=rstemp_create( rset_nmem,kctrl,
+ res_get (zi->res, "setTmpDir"));
result_rsfd = rset_open (result, RSETF_WRITE);
if (to - from > merge_chunk)
{
RSFD *rsfd;
RSET *rset;
- int term_index;
int i, i_add = (to-from)/merge_chunk + 1;
struct trunc_info *ti;
int rscur = 0;
int rsmax = (to-from)/i_add + 1;
- rset = xmalloc (sizeof(*rset) * rsmax);
- rsfd = xmalloc (sizeof(*rsfd) * rsmax);
+ rset = (RSET *) xmalloc (sizeof(*rset) * rsmax);
+ rsfd = (RSFD *) xmalloc (sizeof(*rsfd) * rsmax);
for (i = from; i < to; i += i_add)
{
if (i_add <= to - i)
rset[rscur] = rset_trunc_r (zi, term, length, flags,
- isam_p, i, i+i_add, merge_chunk);
+ isam_p, i, i+i_add,
+ merge_chunk, preserve_position,
+ term_type, rset_nmem, kctrl);
else
rset[rscur] = rset_trunc_r (zi, term, length, flags,
- isam_p, i, to, merge_chunk);
+ isam_p, i, to,
+ merge_chunk, preserve_position,
+ term_type, rset_nmem, kctrl);
rscur++;
}
ti = heap_init (rscur, sizeof(struct it_key), key_compare_it);
for (i = rscur; --i >= 0; )
{
rsfd[i] = rset_open (rset[i], RSETF_READ);
- if (rset_read (rset[i], rsfd[i], ti->tmpbuf, &term_index))
+ if (rset_read(rsfd[i], ti->tmpbuf))
heap_insert (ti, ti->tmpbuf, i);
else
{
- rset_close (rset[i], rsfd[i]);
+ rset_close (rsfd[i]);
rset_delete (rset[i]);
}
}
{
int n = ti->indx[ti->ptr[1]];
- rset_write (result, result_rsfd, ti->heap[ti->ptr[1]]);
+ rset_write (result_rsfd, ti->heap[ti->ptr[1]]);
+ nn++;
while (1)
{
- if (!rset_read (rset[n], rsfd[n], ti->tmpbuf, &term_index))
+ if (!rset_read (rsfd[n], ti->tmpbuf))
{
heap_delete (ti);
- rset_close (rset[n], rsfd[n]);
+ rset_close (rsfd[n]);
rset_delete (rset[n]);
break;
}
xfree (rsfd);
heap_close (ti);
}
- else if (zi->isam)
+ else if (zi->reg->isamc)
{
- ISPT *ispt;
+ ISAMC_PP *ispt;
int i;
struct trunc_info *ti;
- ispt = xmalloc (sizeof(*ispt) * (to-from));
+ ispt = (ISAMC_PP *) xmalloc (sizeof(*ispt) * (to-from));
ti = heap_init (to-from, sizeof(struct it_key),
key_compare_it);
for (i = to-from; --i >= 0; )
{
- ispt[i] = is_position (zi->isam, isam_p[from+i]);
- if (is_readkey (ispt[i], ti->tmpbuf))
+ ispt[i] = isc_pp_open (zi->reg->isamc, isam_p[from+i]);
+ if (isc_pp_read (ispt[i], ti->tmpbuf))
heap_insert (ti, ti->tmpbuf, i);
else
- is_pt_free (ispt[i]);
+ isc_pp_close (ispt[i]);
}
while (ti->heapnum)
{
int n = ti->indx[ti->ptr[1]];
- rset_write (result, result_rsfd, ti->heap[ti->ptr[1]]);
-#if 1
-/* section that preserve all keys */
- heap_delete (ti);
- if (is_readkey (ispt[n], ti->tmpbuf))
- heap_insert (ti, ti->tmpbuf, n);
+ rset_write (result_rsfd, ti->heap[ti->ptr[1]]);
+ nn++;
+ if (preserve_position)
+ {
+ heap_delete (ti);
+ if (isc_pp_read (ispt[n], ti->tmpbuf))
+ heap_insert (ti, ti->tmpbuf, n);
+ else
+ isc_pp_close (ispt[n]);
+ }
else
- is_pt_free (ispt[n]);
-#else
-/* section that preserve all keys with unique sysnos */
- while (1)
{
- if (!is_readkey (ispt[n], ti->tmpbuf))
- {
- heap_delete (ti);
- is_pt_free (ispt[n]);
- break;
- }
- if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1)
+ while (1)
{
- heap_delete (ti);
- heap_insert (ti, ti->tmpbuf, n);
- break;
+ if (!isc_pp_read (ispt[n], ti->tmpbuf))
+ {
+ heap_delete (ti);
+ isc_pp_close (ispt[n]);
+ break;
+ }
+ if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1)
+ {
+ heap_delete (ti);
+ heap_insert (ti, ti->tmpbuf, n);
+ break;
+ }
}
}
-#endif
}
heap_close (ti);
xfree (ispt);
}
- else if (zi->isamc)
+ else if (zi->reg->isams)
{
- ISAMC_PP *ispt;
+ ISAMS_PP *ispt;
int i;
struct trunc_info *ti;
+ int nn = 0;
- ispt = xmalloc (sizeof(*ispt) * (to-from));
+ ispt = (ISAMS_PP *) xmalloc (sizeof(*ispt) * (to-from));
ti = heap_init (to-from, sizeof(struct it_key),
key_compare_it);
for (i = to-from; --i >= 0; )
{
- ispt[i] = isc_pp_open (zi->isamc, isam_p[from+i]);
- if (isc_pp_read (ispt[i], ti->tmpbuf))
+ ispt[i] = isams_pp_open (zi->reg->isams, isam_p[from+i]);
+ if (isams_pp_read (ispt[i], ti->tmpbuf))
heap_insert (ti, ti->tmpbuf, i);
else
- isc_pp_close (ispt[i]);
+ isams_pp_close (ispt[i]);
}
while (ti->heapnum)
{
int n = ti->indx[ti->ptr[1]];
- rset_write (result, result_rsfd, ti->heap[ti->ptr[1]]);
-#if 0
-/* section that preserve all keys */
- heap_delete (ti);
- if (isc_pp_read (ispt[n], ti->tmpbuf))
- heap_insert (ti, ti->tmpbuf, n);
- else
- isc_pp_close (ispt[n]);
-#else
-/* section that preserve all keys with unique sysnos */
+ rset_write (result_rsfd, ti->heap[ti->ptr[1]]);
+ nn++;
while (1)
{
- if (!isc_pp_read (ispt[n], ti->tmpbuf))
+ if (!isams_pp_read (ispt[n], ti->tmpbuf))
{
heap_delete (ti);
- isc_pp_close (ispt[n]);
+ isams_pp_close (ispt[n]);
break;
}
if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1)
break;
}
}
-#endif
}
heap_close (ti);
xfree (ispt);
}
- else if (zi->isams)
+ else if (zi->reg->isamb)
{
- ISAMS_PP *ispt;
+ ISAMB_PP *ispt;
int i;
struct trunc_info *ti;
- ispt = xmalloc (sizeof(*ispt) * (to-from));
+ ispt = (ISAMB_PP *) xmalloc (sizeof(*ispt) * (to-from));
ti = heap_init (to-from, sizeof(struct it_key),
key_compare_it);
for (i = to-from; --i >= 0; )
{
- ispt[i] = isams_pp_open (zi->isams, isam_p[from+i]);
- if (isams_pp_read (ispt[i], ti->tmpbuf))
- heap_insert (ti, ti->tmpbuf, i);
- else
- isams_pp_close (ispt[i]);
+ if (isam_p[from+i]) {
+ ispt[i] = isamb_pp_open (zi->reg->isamb, isam_p[from+i]);
+ if (isamb_pp_read (ispt[i], ti->tmpbuf))
+ heap_insert (ti, ti->tmpbuf, i);
+ else
+ isamb_pp_close (ispt[i]);
+ }
}
while (ti->heapnum)
{
int n = ti->indx[ti->ptr[1]];
- rset_write (result, result_rsfd, ti->heap[ti->ptr[1]]);
- while (1)
+ rset_write (result_rsfd, ti->heap[ti->ptr[1]]);
+ nn++;
+
+ if (preserve_position)
{
- if (!isams_pp_read (ispt[n], ti->tmpbuf))
- {
- heap_delete (ti);
- isams_pp_close (ispt[n]);
- break;
- }
- if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1)
- {
- heap_delete (ti);
+ heap_delete (ti);
+ if (isamb_pp_read (ispt[n], ti->tmpbuf))
heap_insert (ti, ti->tmpbuf, n);
- break;
+ else
+ isamb_pp_close (ispt[n]);
+ }
+ else
+ {
+ while (1)
+ {
+ if (!isamb_pp_read (ispt[n], ti->tmpbuf))
+ {
+ heap_delete (ti);
+ isamb_pp_close (ispt[n]);
+ break;
+ }
+ if ((*ti->cmp)(ti->tmpbuf, ti->heap[ti->ptr[1]]) > 1)
+ {
+ heap_delete (ti);
+ heap_insert (ti, ti->tmpbuf, n);
+ break;
+ }
}
}
}
heap_close (ti);
xfree (ispt);
}
- rset_close (result, result_rsfd);
+ else
+ logf (LOG_WARN, "Unknown isam set in rset_trunc_r");
+
+ rset_close (result_rsfd);
return result;
}
-static int isam_trunc_cmp (const void *p1, const void *p2)
+static int isams_trunc_cmp (const void *p1, const void *p2)
{
- ISAM_P i1 = *(ISAM_P*) p1;
- ISAM_P i2 = *(ISAM_P*) p2;
- int d;
-
- d = is_type (i1) - is_type (i2);
- if (d)
- return d;
- return is_block (i1) - is_block (i2);
+ ISAMS_P i1 = *(ISAMS_P*) p1;
+ ISAMS_P i2 = *(ISAMS_P*) p2;
+
+ if (i1 > i2)
+ return 1;
+ else if (i1 < i2)
+ return -1;
+ return 0;
}
static int isamc_trunc_cmp (const void *p1, const void *p2)
{
ISAMC_P i1 = *(ISAMC_P*) p1;
ISAMC_P i2 = *(ISAMC_P*) p2;
- int d;
-
- d = isc_type (i1) - isc_type (i2);
- if (d)
- return d;
- return isc_block (i1) - isc_block (i2);
+ zint d;
+
+ d = (isc_type (i1) - isc_type (i2));
+ if (d == 0)
+ d = isc_block (i1) - isc_block (i2);
+ if (d > 0)
+ return 1;
+ else if (d < 0)
+ return -1;
+ return 0;
}
-static int isams_trunc_cmp (const void *p1, const void *p2)
-{
- ISAMS_P i1 = *(ISAMS_P*) p1;
- ISAMS_P i2 = *(ISAMS_P*) p2;
-
- return i1 - i2;
-}
-
-RSET rset_trunc (ZebraHandle zi, ISAM_P *isam_p, int no,
- const char *term, int length, const char *flags)
+RSET rset_trunc (ZebraHandle zi, ISAMS_P *isam_p, int no,
+ const char *term, int length, const char *flags,
+ int preserve_position, int term_type, NMEM rset_nmem,
+ const struct key_control *kctrl)
{
logf (LOG_DEBUG, "rset_trunc no=%d", no);
- if (zi->isam)
+ if (no < 1)
+ return rsnull_create (rset_nmem,kctrl);
+ if (zi->reg->isams)
{
- if (no < 1)
- return rset_create (rset_kind_null, NULL);
- else if (no == 1)
- {
- rset_isam_parms parms;
-
- parms.pos = *isam_p;
- parms.is = zi->isam;
- parms.rset_term = rset_term_create (term, length, flags);
- return rset_create (rset_kind_isam, &parms);
- }
- qsort (isam_p, no, sizeof(*isam_p), isam_trunc_cmp);
+ if (no == 1)
+ return rsisams_create(rset_nmem, kctrl,
+ zi->reg->isams, *isam_p);
+ qsort (isam_p, no, sizeof(*isam_p), isams_trunc_cmp);
}
- else if (zi->isamc)
+ else if (zi->reg->isamc)
{
- if (no < 1)
- return rset_create (rset_kind_null, NULL);
- else if (no == 1)
- {
- rset_isamc_parms parms;
-
- parms.pos = *isam_p;
- parms.is = zi->isamc;
- parms.rset_term = rset_term_create (term, length, flags);
- return rset_create (rset_kind_isamc, &parms);
- }
-#if NEW_TRUNC
- else if (no < 200)
- {
- rset_m_or_parms parms;
-
- parms.key_size = sizeof(struct it_key);
- parms.cmp = key_compare_it;
- parms.isc = zi->isamc;
- parms.isam_positions = isam_p;
- parms.no_isam_positions = no;
- parms.no_save_positions = 100000;
- parms.rset_term = rset_term_create (term, length, flags);
- return rset_create (rset_kind_m_or, &parms);
- }
-#endif
+ if (no == 1)
+ return rsisamc_create(rset_nmem, kctrl,
+ zi->reg->isamc, *isam_p);
qsort (isam_p, no, sizeof(*isam_p), isamc_trunc_cmp);
}
- else if (zi->isams)
+ else if (zi->reg->isamb)
{
- if (no < 1)
- return rset_create (rset_kind_null, NULL);
- else if (no == 1)
+ if (no == 1)
+ return rsisamb_create(rset_nmem,kctrl,
+ zi->reg->isamb, *isam_p);
+ else if (no <10000 ) /* FIXME - hardcoded number */
{
- rset_isams_parms parms;
-
- parms.pos = *isam_p;
- parms.is = zi->isams;
- parms.rset_term = rset_term_create (term, length, flags);
- return rset_create (rset_kind_isams, &parms);
- }
- qsort (isam_p, no, sizeof(*isam_p), isams_trunc_cmp);
+ RSET r;
+ RSET *rsets=xmalloc(no*sizeof(RSET)); /* use nmem! */
+ int i;
+ for (i=0;i<no;i++)
+ rsets[i]=rsisamb_create(rset_nmem, kctrl,
+ zi->reg->isamb, isam_p[i] );
+ r=rsmultior_create( rset_nmem, kctrl, no, rsets);
+ xfree(rsets);
+ }
+ qsort (isam_p, no, sizeof(*isam_p), isamc_trunc_cmp);
}
else
{
- logf (LOG_WARN, "Neither isam / isamc / isams set in rset_trunc");
- return rset_create (rset_kind_null, NULL);
+ logf (LOG_WARN, "Unknown isam set in rset_trunc");
+ return rsnull_create (rset_nmem, kctrl);
}
- return rset_trunc_r (zi, term, length, flags, isam_p, 0, no, 100);
+ return rset_trunc_r (zi, term, length, flags, isam_p, 0, no, 100,
+ preserve_position, term_type, rset_nmem,kctrl);
}
projects / idzebra-moved-to-github.git / blobdiff