Added a few comments - no code changed.

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

diff --git a/rset/rset.c b/rset/rset.c
index d6e2041..e0d1d80 100644 (file)
--- a/rset/rset.c
+++ b/rset/rset.c
@@ -1,10 +1,16 @@
 /*
- * Copyright (C) 1994-1995, Index Data I/S 
+ * Copyright (C) 1994-1998, Index Data I/S 
  * All rights reserved.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: rset.c,v $
- * Revision 1.8  1995-12-11 09:15:23  adam
+ * Revision 1.10  1998-02-10 11:56:46  adam
+ * Implemented rset_dup.
+ *
+ * Revision 1.9  1996/10/29 13:55:21  adam
+ * Include of zebrautl.h instead of alexutil.h.
+ *
+ * Revision 1.8  1995/12/11 09:15:23  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.
@@ -38,7 +44,7 @@
  */
 
 #include <stdio.h>
-#include <alexutil.h>
+#include <zebrautl.h>
 
 #include <rset.h>
 
@@ -50,12 +56,21 @@ RSET rset_create(const rset_control *sel, void *parms)
     rnew = xmalloc(sizeof(*rnew));
     rnew->control = sel;
     rnew->flags = 0;
+    rnew->count = 1;
     rnew->buf = (*sel->f_create)(sel, parms, &rnew->flags);
     return rnew;
 }
 
 void rset_delete (RSET rs)
 {
-    (*rs->control->f_delete)(rs);
+    (rs->count)--;
+    if (!rs->count)
+       (*rs->control->f_delete)(rs);
     xfree(rs);
 }
+
+RSET rset_dup (RSET rs)
+{
+    (rs->count)++;
+    return rs;
+}