/*
- * Copyright (C) 1994-1995, Index Data I/S
+ * Copyright (C) 1994-1999, Index Data
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: rsbool.c,v $
- * Revision 1.9 1995-12-11 09:15:22 adam
+ * Revision 1.16 1999-05-26 07:49:14 adam
+ * C++ compilation.
+ *
+ * Revision 1.15 1999/02/02 14:51:32 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.14 1998/03/05 08:36:27 adam
+ * New result set model.
+ *
+ * Revision 1.13 1997/12/18 10:54:24 adam
+ * New method result set method rs_hits that returns the number of
+ * hits in result-set (if known). The ranked result set returns real
+ * number of hits but only when not combined with other operands.
+ *
+ * Revision 1.12 1997/10/31 12:37:01 adam
+ * Code calls xfree() instead of free().
+ *
+ * Revision 1.11 1997/09/09 13:38:15 adam
+ * Partial port to WIN95/NT.
+ *
+ * Revision 1.10 1996/10/29 13:55:20 adam
+ * Include of zebrautl.h instead of alexutil.h.
+ *
+ * Revision 1.9 1995/12/11 09:15:22 adam
* New set types: sand/sor/snot - ranked versions of and/or/not in
* ranked/semi-ranked result sets.
* Note: the snot not finished yet.
*/
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include <assert.h>
#include <rsbool.h>
-#include <alexutil.h>
+#include <zebrautl.h>
-static void *r_create(const struct rset_control *sel, void *parms,
- int *flags);
+static void *r_create(RSET ct, const struct rset_control *sel, void *parms);
static RSFD r_open (RSET ct, int flag);
static void r_close (RSFD rfd);
static void r_delete (RSET ct);
static void r_rewind (RSFD rfd);
static int r_count (RSET ct);
-static int r_read_and (RSFD rfd, void *buf);
-static int r_read_or (RSFD rfd, void *buf);
-static int r_read_not (RSFD rfd, void *buf);
+static int r_read_and (RSFD rfd, void *buf, int *term_index);
+static int r_read_or (RSFD rfd, void *buf, int *term_index);
+static int r_read_not (RSFD rfd, void *buf, int *term_index);
static int r_write (RSFD rfd, const void *buf);
-static int r_score (RSFD rfd, int *score);
-static const rset_control control_and =
+static const struct rset_control control_and =
{
"and",
r_create,
r_count,
r_read_and,
r_write,
- r_score
};
-static const rset_control control_or =
+static const struct rset_control control_or =
{
"or",
r_create,
r_count,
r_read_or,
r_write,
- r_score
};
-static const rset_control control_not =
+static const struct rset_control control_not =
{
"not",
r_create,
r_count,
r_read_not,
r_write,
- r_score
};
-const rset_control *rset_kind_and = &control_and;
-const rset_control *rset_kind_or = &control_or;
-const rset_control *rset_kind_not = &control_not;
+const struct rset_control *rset_kind_and = &control_and;
+const struct rset_control *rset_kind_or = &control_or;
+const struct rset_control *rset_kind_not = &control_not;
struct rset_bool_info {
int key_size;
RSET rset_l;
RSET rset_r;
+ int term_index_s;
int (*cmp)(const void *p1, const void *p2);
struct rset_bool_rfd *rfd_list;
};
RSFD rfd_r;
int more_l;
int more_r;
+ int term_index_l;
+ int term_index_r;
void *buf_l;
void *buf_r;
struct rset_bool_rfd *next;
struct rset_bool_info *info;
};
-static void *r_create (const struct rset_control *sel, void *parms,
- int *flags)
+static void *r_create (RSET ct, const struct rset_control *sel, void *parms)
{
- rset_bool_parms *bool_parms = parms;
+ rset_bool_parms *bool_parms = (rset_bool_parms *) parms;
struct rset_bool_info *info;
- info = xmalloc (sizeof(*info));
+ info = (struct rset_bool_info *) xmalloc (sizeof(*info));
info->key_size = bool_parms->key_size;
info->rset_l = bool_parms->rset_l;
info->rset_r = bool_parms->rset_r;
if (rset_is_volatile(info->rset_l) || rset_is_volatile(info->rset_r))
- *flags |= RSET_FLAG_VOLATILE;
+ ct->flags |= RSET_FLAG_VOLATILE;
info->cmp = bool_parms->cmp;
info->rfd_list = NULL;
+
+ info->term_index_s = info->rset_l->no_rset_terms;
+ ct->no_rset_terms =
+ info->rset_l->no_rset_terms + info->rset_r->no_rset_terms;
+ ct->rset_terms = (RSET_TERM *)
+ xmalloc (sizeof (*ct->rset_terms) * ct->no_rset_terms);
+
+ memcpy (ct->rset_terms, info->rset_l->rset_terms,
+ info->rset_l->no_rset_terms * sizeof(*ct->rset_terms));
+ memcpy (ct->rset_terms + info->rset_l->no_rset_terms,
+ info->rset_r->rset_terms,
+ info->rset_r->no_rset_terms * sizeof(*ct->rset_terms));
return info;
}
static RSFD r_open (RSET ct, int flag)
{
- struct rset_bool_info *info = ct->buf;
+ struct rset_bool_info *info = (struct rset_bool_info *) ct->buf;
struct rset_bool_rfd *rfd;
if (flag & RSETF_WRITE)
logf (LOG_FATAL, "bool set type is read-only");
return NULL;
}
- rfd = xmalloc (sizeof(*rfd));
+ rfd = (struct rset_bool_rfd *) xmalloc (sizeof(*rfd));
rfd->next = info->rfd_list;
info->rfd_list = rfd;
rfd->info = info;
rfd->buf_l = xmalloc (info->key_size);
rfd->buf_r = xmalloc (info->key_size);
- rfd->rfd_l = rset_open (info->rset_l, RSETF_READ|RSETF_SORT_SYSNO);
- rfd->rfd_r = rset_open (info->rset_r, RSETF_READ|RSETF_SORT_SYSNO);
- rfd->more_l = rset_read (info->rset_l, rfd->rfd_l, rfd->buf_l);
- rfd->more_r = rset_read (info->rset_r, rfd->rfd_r, rfd->buf_r);
+ rfd->rfd_l = rset_open (info->rset_l, RSETF_READ);
+ rfd->rfd_r = rset_open (info->rset_r, RSETF_READ);
+ rfd->more_l = rset_read (info->rset_l, rfd->rfd_l, rfd->buf_l,
+ &rfd->term_index_l);
+ rfd->more_r = rset_read (info->rset_r, rfd->rfd_r, rfd->buf_r,
+ &rfd->term_index_r);
return rfd;
}
rset_close (info->rset_l, (*rfdp)->rfd_l);
rset_close (info->rset_r, (*rfdp)->rfd_r);
*rfdp = (*rfdp)->next;
- free (rfd);
+ xfree (rfd);
return;
}
logf (LOG_FATAL, "r_close but no rfd match!");
static void r_delete (RSET ct)
{
- struct rset_bool_info *info = ct->buf;
+ struct rset_bool_info *info = (struct rset_bool_info *) ct->buf;
assert (info->rfd_list == NULL);
+ xfree (ct->rset_terms);
rset_delete (info->rset_l);
rset_delete (info->rset_r);
xfree (info);
static void r_rewind (RSFD rfd)
{
struct rset_bool_info *info = ((struct rset_bool_rfd*)rfd)->info;
- struct rset_bool_rfd *p = rfd;
+ struct rset_bool_rfd *p = (struct rset_bool_rfd *) rfd;
logf (LOG_DEBUG, "rsbool_rewind");
rset_rewind (info->rset_l, p->rfd_l);
rset_rewind (info->rset_r, p->rfd_r);
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l, &p->term_index_l);
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r, &p->term_index_r);
}
static int r_count (RSET ct)
return 0;
}
-static int r_read_and (RSFD rfd, void *buf)
+static int r_read_and (RSFD rfd, void *buf, int *term_index)
{
- struct rset_bool_rfd *p = rfd;
+ struct rset_bool_rfd *p = (struct rset_bool_rfd *) rfd;
struct rset_bool_info *info = p->info;
while (p->more_l && p->more_r)
if (!cmp)
{
memcpy (buf, p->buf_l, info->key_size);
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
return 1;
}
else if (cmp == 1)
{
memcpy (buf, p->buf_r, info->key_size);
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+
+ *term_index = p->term_index_r + info->term_index_s;
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
return 1;
}
else if (cmp == -1)
{
memcpy (buf, p->buf_l, info->key_size);
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
return 1;
}
else if (cmp > 1)
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
else
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
}
return 0;
}
-static int r_read_or (RSFD rfd, void *buf)
+static int r_read_or (RSFD rfd, void *buf, int *term_index)
{
- struct rset_bool_rfd *p = rfd;
+ struct rset_bool_rfd *p = (struct rset_bool_rfd *) rfd;
struct rset_bool_info *info = p->info;
while (p->more_l || p->more_r)
if (!cmp)
{
memcpy (buf, p->buf_l, info->key_size);
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
return 1;
}
else if (cmp > 0)
{
memcpy (buf, p->buf_r, info->key_size);
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ *term_index = p->term_index_r + info->term_index_s;
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
return 1;
}
else
{
memcpy (buf, p->buf_l, info->key_size);
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
return 1;
}
}
return 0;
}
-static int r_read_not (RSFD rfd, void *buf)
+static int r_read_not (RSFD rfd, void *buf, int *term_index)
{
- struct rset_bool_rfd *p = rfd;
+ struct rset_bool_rfd *p = (struct rset_bool_rfd *) rfd;
struct rset_bool_info *info = p->info;
while (p->more_l || p->more_r)
if (cmp < -1)
{
memcpy (buf, p->buf_l, info->key_size);
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
+ *term_index = p->term_index_l;
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
return 1;
}
else if (cmp > 1)
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
else
{
memcpy (buf, p->buf_l, info->key_size);
do
{
- p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l);
+ p->more_l = rset_read (info->rset_l, p->rfd_l, p->buf_l,
+ &p->term_index_l);
if (!p->more_l)
break;
cmp = (*info->cmp)(p->buf_l, buf);
} while (cmp >= -1 && cmp <= 1);
do
{
- p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r);
+ p->more_r = rset_read (info->rset_r, p->rfd_r, p->buf_r,
+ &p->term_index_r);
if (!p->more_r)
break;
cmp = (*info->cmp)(p->buf_r, buf);
return -1;
}
-static int r_score (RSFD rfd, int *score)
-{
- *score = -1;
- return -1;
-}
-
projects / idzebra-moved-to-github.git / blobdiff