-/*
- * Copyright (C) 1994-1995, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: rsnull.c,v $
- * Revision 1.1 1995-09-06 10:35:44 adam
- * Null set implemented.
- *
- */
+/* $Id: rsnull.c,v 1.16 2004-01-16 15:27:35 heikki 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 <stdio.h>
#include <rsnull.h>
-#include <alexutil.h>
-
-static rset_control *r_create(const struct rset_control *sel, void *parms);
-static int r_open (rset_control *ct, int wflag);
-static void r_close (rset_control *ct);
-static void r_delete (rset_control *ct);
-static void r_rewind (rset_control *ct);
-static int r_count (rset_control *ct);
-static int r_read (rset_control *ct, void *buf);
-static int r_write (rset_control *ct, const void *buf);
-
-static const rset_control control =
+#include <zebrautl.h>
+
+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, int *term_index);
+static int r_write (RSFD rfd, const void *buf);
+
+static const struct rset_control control =
{
- "NULL set type",
- 0,
+ "null",
r_create,
r_open,
r_close,
r_delete,
r_rewind,
+ rset_default_forward,
r_count,
r_read,
- r_write
+ r_write,
};
-const rset_control *rset_kind_null = &control;
+const struct rset_control *rset_kind_null = &control;
-static rset_control *r_create(const struct rset_control *sel, void *parms)
+static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
{
- rset_control *newct;
+ rset_null_parms *null_parms = (rset_null_parms *) parms;
+
+ ct->no_rset_terms = 1;
+ ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms));
+ if (parms && null_parms->rset_term)
+ ct->rset_terms[0] = null_parms->rset_term;
+ else
+ ct->rset_terms[0] = rset_term_create ("term", -1, "rank-0",
+ 0);
+ ct->rset_terms[0]->nn = 0;
- logf (LOG_DEBUG, "rsnull_create(%s)", sel->desc);
- newct = xmalloc(sizeof(*newct));
- memcpy(newct, sel, sizeof(*sel));
- return newct;
+ return NULL;
}
-static int r_open(rset_control *ct, int wflag)
+static RSFD r_open (RSET ct, int flag)
{
- if (wflag)
+ if (flag & RSETF_WRITE)
{
logf (LOG_FATAL, "NULL set type is read-only");
- return -1;
+ return NULL;
}
- return 0;
+ return "";
}
-static void r_close(rset_control *ct)
+static void r_close (RSFD rfd)
{
- /* NOP */
}
-static void r_delete(rset_control *ct)
+static void r_delete (RSET ct)
{
- xfree(ct);
+ rset_term_destroy (ct->rset_terms[0]);
+ xfree (ct->rset_terms);
}
-static void r_rewind(rset_control *ct)
+static void r_rewind (RSFD rfd)
{
logf (LOG_DEBUG, "rsnull_rewind");
}
-static int r_count (rset_control *ct)
+static int r_count (RSET ct)
{
return 0;
}
-static int r_read (rset_control *ct, void *buf)
+static int r_read (RSFD rfd, void *buf, int *term_index)
{
+ *term_index = -1;
return 0;
}
-static int r_write (rset_control *ct, const void *buf)
+static int r_write (RSFD rfd, const void *buf)
{
logf (LOG_FATAL, "NULL set type is read-only");
return -1;
}
+