X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=rset%2Frsm_or.c;h=a3a858bfc886d2f1a90fbd1775de1500337f89cc;hb=bad06dda453543b8dd716ee54e9b7cb2b015b6e5;hp=2121a88fc3e022697248811919b1cffe1ed5a629;hpb=b7942589b21cca1b6d44c7bf9446dcb6a5942953;p=idzebra-moved-to-github.git

diff --git a/rset/rsm_or.c b/rset/rsm_or.c
index 2121a88..a3a858b 100644
--- a/rset/rsm_or.c
+++ b/rset/rsm_or.c
@@ -1,45 +1,48 @@
-/*
- * Copyright (C) 1994-1996, Index Data I/S 
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: rsm_or.c,v $
- * Revision 1.4  1997-10-31 12:37:55  adam
- * Code calls xfree() instead of free().
- *
- * Revision 1.3  1997/09/09 13:38:16  adam
- * Partial port to WIN95/NT.
- *
- * Revision 1.2  1996/12/23 15:30:49  adam
- * Work on truncation.
- *
- * Revision 1.1  1996/12/20 11:07:21  adam
- * Implemented Multi-or result set.
- *
- */
+/* $Id: rsm_or.c,v 1.13 2002-08-02 19:26:57 adam Exp $
+   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+   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 <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#include <zebrautl.h>
 #include <isam.h>
 #include <isamc.h>
 #include <rsm_or.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 (RSFD rfd, void *buf);
+static int r_read (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 = 
+static const struct rset_control control = 
 {
     "multi-or",
     r_create,
@@ -50,10 +53,9 @@ static const rset_control control =
     r_count,
     r_read,
     r_write,
-    r_score
 };
 
-const rset_control *rset_kind_m_or = &control;
+const struct rset_control *rset_kind_m_or = &control;
 
 struct rset_mor_info {
     int     key_size;
@@ -87,6 +89,8 @@ struct rset_mor_rfd {
     struct rset_mor_rfd *next;
     struct rset_mor_info *info;
     struct trunc_info *ti;
+    int  *countp;
+    char *pbuf;
 };
 
 static void heap_swap (struct trunc_info *ti, int i1, int i2)
@@ -141,19 +145,19 @@ static
 struct trunc_info *heap_init (int size, int key_size,
                               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;
@@ -164,6 +168,7 @@ struct trunc_info *heap_init (int size, int key_size,
 
 static void heap_close (struct trunc_info *ti)
 {
+    xfree (ti->buf);
     xfree (ti->ptr);
     xfree (ti->indx);
     xfree (ti->heap);
@@ -172,15 +177,13 @@ static void heap_close (struct trunc_info *ti)
     xfree (ti);
 }
 
-
-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_m_or_parms *r_parms = parms;
+    rset_m_or_parms *r_parms = (rset_m_or_parms *) parms;
     struct rset_mor_info *info;
 
-    *flags |= RSET_FLAG_VOLATILE;
-    info = xmalloc (sizeof(*info));
+    ct->flags |= RSET_FLAG_VOLATILE;
+    info = (struct rset_mor_info *) xmalloc (sizeof(*info));
     info->key_size = r_parms->key_size;
     assert (info->key_size > 1);
     info->cmp = r_parms->cmp;
@@ -189,19 +192,22 @@ static void *r_create (const struct rset_control *sel, void *parms,
 
     info->isc = r_parms->isc;
     info->no_isam_positions = r_parms->no_isam_positions;
-    info->isam_positions = xmalloc (sizeof(*info->isam_positions) *
-                                    info->no_isam_positions);
+    info->isam_positions = (ISAM_P *)
+	xmalloc (sizeof(*info->isam_positions) * info->no_isam_positions);
     memcpy (info->isam_positions, r_parms->isam_positions,
             sizeof(*info->isam_positions) * info->no_isam_positions);
     info->rfd_list = NULL;
 
+    ct->no_rset_terms = 1;
+    ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms));
+    ct->rset_terms[0] = r_parms->rset_term;
     return info;
 }
 
 static RSFD r_open (RSET ct, int flag)
 {
     struct rset_mor_rfd *rfd;
-    struct rset_mor_info *info = ct->buf;
+    struct rset_mor_info *info = (struct rset_mor_info *) ct->buf;
     int i;
 
     if (flag & RSETF_WRITE)
@@ -209,19 +215,24 @@ static RSFD r_open (RSET ct, int flag)
 	logf (LOG_FATAL, "m_or set type is read-only");
 	return NULL;
     }
-    rfd = xmalloc (sizeof(*rfd));
+    rfd = (struct rset_mor_rfd *) xmalloc (sizeof(*rfd));
     rfd->flag = flag;
     rfd->next = info->rfd_list;
     rfd->info = info;
     info->rfd_list = rfd;
 
-    rfd->ispt = xmalloc (sizeof(*rfd->ispt) * info->no_isam_positions);
+    rfd->ispt = (ISAMC_PP *)
+	xmalloc (sizeof(*rfd->ispt) * info->no_isam_positions);
         
     rfd->ti = heap_init (info->no_isam_positions, info->key_size, info->cmp);
 
+    ct->rset_terms[0]->nn = 0;
     for (i = 0; i<info->no_isam_positions; i++)
     {
         rfd->ispt[i] = isc_pp_open (info->isc, info->isam_positions[i]);
+	
+	ct->rset_terms[0]->nn += isc_pp_num (rfd->ispt[i]);
+
         if (isc_pp_read (rfd->ispt[i], rfd->ti->tmpbuf))
             heap_insert (rfd->ti, rfd->ti->tmpbuf, i);
         else
@@ -231,6 +242,13 @@ static RSFD r_open (RSET ct, int flag)
         }
     }
     rfd->position = info->no_save_positions;
+
+    if (ct->no_rset_terms == 1)
+        rfd->countp = &ct->rset_terms[0]->count;
+    else
+        rfd->countp = 0;
+    rfd->pbuf = xmalloc (info->key_size);
+
     r_rewind (rfd);
     return rfd;
 }
@@ -251,6 +269,7 @@ static void r_close (RSFD rfd)
                 if (((struct rset_mor_rfd *) rfd)->ispt[i])
                     isc_pp_close (((struct rset_mor_rfd *) rfd)->ispt[i]);
             xfree (((struct rset_mor_rfd *)rfd)->ispt);
+            xfree (((struct rset_mor_rfd *)rfd)->pbuf);
             xfree (rfd);
             return;
         }
@@ -260,10 +279,16 @@ static void r_close (RSFD rfd)
 
 static void r_delete (RSET ct)
 {
-    struct rset_mor_info *info = ct->buf;
+    struct rset_mor_info *info = (struct rset_mor_info *) ct->buf;
+    int i;
 
     assert (info->rfd_list == NULL);
     xfree (info->isam_positions);
+
+    for (i = 0; i<ct->no_rset_terms; i++)
+	rset_term_destroy (ct->rset_terms[i]);
+    xfree (ct->rset_terms);
+
     xfree (info);
 }
 
@@ -276,13 +301,15 @@ static int r_count (RSET ct)
     return 0;
 }
 
-static int r_read (RSFD rfd, void *buf)
+static int r_read (RSFD rfd, void *buf, int *term_index)
 {
-    struct trunc_info *ti = ((struct rset_mor_rfd *) rfd)->ti;
+    struct rset_mor_rfd *mrfd = (struct rset_mor_rfd *) rfd;
+    struct trunc_info *ti = mrfd->ti;
     int n = ti->indx[ti->ptr[1]];
 
     if (!ti->heapnum)
         return 0;
+    *term_index = 0;
     memcpy (buf, ti->heap[ti->ptr[1]], ti->keysize);
     if (((struct rset_mor_rfd *) rfd)->position)
     {
@@ -295,6 +322,12 @@ static int r_read (RSFD rfd, void *buf)
         }
         else
             heap_delete (ti);
+        if (mrfd->countp && (
+                *mrfd->countp == 0 || (*ti->cmp)(buf, mrfd->pbuf) > 1))
+        {
+            memcpy (mrfd->pbuf, buf, ti->keysize);
+            (*mrfd->countp)++;
+        }
         return 1;
     }
     while (1)
@@ -311,15 +344,15 @@ static int r_read (RSFD rfd, void *buf)
             break;
         }
     }
+    if (mrfd->countp && (
+            *mrfd->countp == 0 || (*ti->cmp)(buf, mrfd->pbuf) > 1))
+    {
+        memcpy (mrfd->pbuf, buf, ti->keysize);
+        (*mrfd->countp)++;
+    }
     return 1;
 }
 
-static int r_score (RSFD rfd, int *score)
-{
-    *score = -1;
-    return -1;
-}
-
 static int r_write (RSFD rfd, const void *buf)
 {
     logf (LOG_FATAL, "mor set type is read-only");