the new multior. Seems to work, forwards OK, does not yet estimate pos.

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

diff --git a/rset/rset.c b/rset/rset.c
index 66164da..254ee08 100644 (file)
--- a/rset/rset.c
+++ b/rset/rset.c
@@ -1,5 +1,5 @@
-/* $Id: rset.c,v 1.17 2002-08-02 19:26:57 adam Exp $
-   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
+/* $Id: rset.c,v 1.24 2004-08-19 12:49:15 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.
@@ -25,8 +25,10 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include <stdio.h>
 #include <string.h>
 #include <zebrautl.h>
+#include <assert.h>
 
 #include <rset.h>
+#include <../index/index.h> /* for log_keydump. Debugging only */
 
 RSET rset_create(const struct rset_control *sel, void *parms)
 {
@@ -63,6 +65,39 @@ RSET rset_dup (RSET rs)
     return rs;
 }
 
+void rset_default_pos (RSFD rfd, double *current, double *total)
+{ /* This should never really be needed, but it is still used in */
+  /* those rsets that we don't really plan to use, like isam-s */
+    assert(rfd);
+    assert(current);
+    assert(total);
+    *current=-1; /* signal that pos is not implemented */
+    *total=-1;
+} /* rset_default_pos */
+
+int rset_default_forward(RSET ct, RSFD rfd, void *buf, int *term_index, 
+                           int (*cmpfunc)(const void *p1, const void *p2), 
+                           const void *untilbuf)
+{
+    int more=1;
+    int cmp=2;
+    logf (LOG_DEBUG, "rset_default_forward starting '%s' (ct=%p rfd=%p)",
+                    ct->control->desc, ct,rfd);
+    key_logdump(LOG_DEBUG, untilbuf);
+    while ( (cmp==2) && (more))
+    {
+        logf (LOG_DEBUG, "rset_default_forward looping m=%d c=%d",more,cmp);
+        more=rset_read(ct, rfd, buf, term_index);
+        if (more)
+            cmp=(*cmpfunc)(untilbuf,buf);
+        if (more)
+            key_logdump(LOG_DEBUG,buf);
+    }
+    logf (LOG_DEBUG, "rset_default_forward exiting m=%d c=%d",more,cmp);
+
+    return more;
+}
+
 RSET_TERM *rset_terms(RSET rs, int *no)
 {
     *no = rs->no_rset_terms;
@@ -95,9 +130,11 @@ RSET_TERM rset_term_create (const char *name, int length, const char *flags,
 
 void rset_term_destroy (RSET_TERM t)
 {
-    xfree (t->name);
-    xfree (t->flags);
-    xfree (t);
+    if (t) { /* rsmultior uses things without terms at all ! */
+        xfree (t->name);
+        xfree (t->flags);
+        xfree (t);
+    }
 }
 
 RSET_TERM rset_term_dup (RSET_TERM t)