-/*
- * Copyright (C) 1994-2002, Index Data
- * All rights reserved.
- *
- * $Id: rsisamb.c,v 1.1 2002-04-16 22:31:42 adam Exp $
- */
+/* $Id: rsisamb.c,v 1.10.2.3 2006-08-14 10:39:20 adam Exp $
+ Copyright (C) 1995-2005
+ 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 this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
#include <stdio.h>
#include <assert.h>
#include <zebrautl.h>
#include <rsisamb.h>
+#include <string.h>
+#include <../index/index.h> /* for log_keydump. Debugging only */
+
+#ifndef RSET_DEBUG
+#define RSET_DEBUG 0
+#endif
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_forward(RSET ct, RSFD rfd, void *buf, int *term_index,
+ int (*cmpfunc)(const void *p1, const void *p2),
+ const void *untilbuf);
+static void r_pos (RSFD rfd, int *current, int *total);
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 =
{
- "isamc",
+ "isamb",
r_create,
r_open,
r_close,
r_delete,
r_rewind,
- r_count,
+ rset_default_forward,
+ r_pos,
r_read,
r_write,
};
+static const struct rset_control control_forward =
+{
+ "isamb",
+ r_create,
+ r_open,
+ r_close,
+ r_delete,
+ r_rewind,
+ r_forward,
+ r_pos,
+ r_read,
+ r_write,
+};
+
+/* FIXME - using the default forward reads all items from the isam */
+/* and thus makes the term counts work OK. On the other hand, it */
+/* negates the speedup from forwarding */
+
const struct rset_control *rset_kind_isamb = &control;
+const struct rset_control *rset_kind_isamb_forward = &control_forward;
struct rset_pp_info {
ISAMB_PP pt;
abort ();
}
-static int r_count (RSET ct)
+static int r_forward(RSET ct, RSFD rfd, void *buf, int *term_index,
+ int (*cmpfunc)(const void *p1, const void *p2),
+ const void *untilbuf)
{
- return 0;
+ int i;
+ struct rset_pp_info *pinfo = (struct rset_pp_info *) rfd;
+#if RSET_DEBUG
+ logf (LOG_DEBUG, "rset_rsisamb_forward starting '%s' (ct=%p rfd=%p)",
+ ct->control->desc, ct,rfd);
+ key_logdump(LOG_DEBUG, untilbuf);
+ key_logdump(LOG_DEBUG, buf);
+#endif
+
+ i=isamb_pp_forward(pinfo->pt, buf, untilbuf);
+#if RSET_DEBUG
+ logf (LOG_DEBUG, "rset_rsisamb_forward returning %d",i);
+#endif
+ return i;
+}
+
+static void r_pos (RSFD rfd, int *current, int *total)
+{
+ struct rset_pp_info *pinfo = (struct rset_pp_info *) rfd;
+ assert(rfd);
+ isamb_pp_pos(pinfo->pt, current, total);
}
static int r_read (RSFD rfd, void *buf, int *term_index)