-/*
- * Copyright (C) 1994-1999, Index Data
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: rsisams.c,v $
- * Revision 1.1 1999-05-12 15:24:25 adam
- * First version of ISAMS.
- *
- */
+/* This file is part of the Zebra server.
+ Copyright (C) 1994-2011 Index Data
+
+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
+
+*/
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdio.h>
#include <assert.h>
-#include <rsisams.h>
-#include <zebrautl.h>
+#include <idzebra/util.h>
+#include <rset.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_read (RSFD rfd, void *buf, TERMID *term);
static int r_write (RSFD rfd, const void *buf);
+static void r_pos (RSFD rfd, double *current, double *total);
static const struct rset_control control =
{
"isams",
- r_create,
+ r_delete,
+ rset_get_one_term,
r_open,
r_close,
- r_delete,
- r_rewind,
- r_count,
+ 0, /* no forward */
+ r_pos,
r_read,
r_write,
};
-const struct rset_control *rset_kind_isams = &control;
-
-struct rset_pp_info {
+struct rfd_private {
ISAMS_PP pt;
- struct rset_pp_info *next;
- struct rset_isams_info *info;
};
-struct rset_isams_info {
+struct rset_private {
ISAMS is;
- ISAMS_P pos;
- struct rset_pp_info *ispt_list;
+ ISAM_P pos;
};
-static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
+
+RSET rsisams_create(NMEM nmem, struct rset_key_control *kcontrol,
+ int scope,
+ ISAMS is, ISAM_P pos, TERMID term)
{
- rset_isams_parms *pt = parms;
- struct rset_isams_info *info;
-
- ct->flags |= RSET_FLAG_VOLATILE;
- info = xmalloc (sizeof(*info));
- info->is = pt->is;
- info->pos = pt->pos;
- info->ispt_list = NULL;
- ct->no_rset_terms = 1;
- ct->rset_terms = xmalloc (sizeof(*ct->rset_terms));
- ct->rset_terms[0] = pt->rset_term;
- return info;
+ RSET rnew = rset_create_base(&control, nmem, kcontrol, scope, term, 0, 0);
+ struct rset_private *info;
+ info = (struct rset_private *) nmem_malloc(rnew->nmem, sizeof(*info));
+ rnew->priv = info;
+ info->is = is;
+ info->pos = pos;
+ return rnew;
+}
+
+static void r_delete (RSET ct)
+{
+ yaz_log (YLOG_DEBUG, "rsisams_delete");
}
RSFD r_open (RSET ct, int flag)
{
- struct rset_isams_info *info = ct->buf;
- struct rset_pp_info *ptinfo;
+ struct rset_private *info = (struct rset_private *) ct->priv;
+ RSFD rfd;
+ struct rfd_private *ptinfo;
- logf (LOG_DEBUG, "risams_open");
+ yaz_log (YLOG_DEBUG, "risams_open");
if (flag & RSETF_WRITE)
{
- logf (LOG_FATAL, "ISAMS set type is read-only");
- return NULL;
+ yaz_log (YLOG_FATAL, "ISAMS set type is read-only");
+ return NULL;
+ }
+ rfd = rfd_create_base(ct);
+ if (rfd->priv)
+ ptinfo = (struct rfd_private *)(rfd->priv);
+ else {
+ ptinfo = (struct rfd_private *) nmem_malloc(ct->nmem,sizeof(*ptinfo));
+ rfd->priv = ptinfo;
}
- ptinfo = xmalloc (sizeof(*ptinfo));
- ptinfo->next = info->ispt_list;
- info->ispt_list = ptinfo;
ptinfo->pt = isams_pp_open (info->is, info->pos);
- ptinfo->info = info;
- if (ct->rset_terms[0]->nn < 0)
- ct->rset_terms[0]->nn = isams_pp_num (ptinfo->pt);
- return ptinfo;
+ return rfd;
}
static void r_close (RSFD rfd)
{
- struct rset_isams_info *info = ((struct rset_pp_info*) rfd)->info;
- struct rset_pp_info **ptinfop;
-
- for (ptinfop = &info->ispt_list; *ptinfop; ptinfop = &(*ptinfop)->next)
- if (*ptinfop == rfd)
- {
- isams_pp_close ((*ptinfop)->pt);
- *ptinfop = (*ptinfop)->next;
- xfree (rfd);
- return;
- }
- logf (LOG_FATAL, "r_close but no rfd match!");
- assert (0);
-}
-
-static void r_delete (RSET ct)
-{
- struct rset_isams_info *info = ct->buf;
+ struct rfd_private *ptinfo = (struct rfd_private *)(rfd->priv);
- logf (LOG_DEBUG, "rsisams_delete");
- assert (info->ispt_list == NULL);
- rset_term_destroy (ct->rset_terms[0]);
- xfree (ct->rset_terms);
- xfree (info);
+ isams_pp_close (ptinfo->pt);
}
-static void r_rewind (RSFD rfd)
-{
- logf (LOG_DEBUG, "rsisams_rewind");
- abort ();
-}
-static int r_count (RSET ct)
+static int r_read (RSFD rfd, void *buf, TERMID *term)
{
- return 0;
+ struct rfd_private *ptinfo = (struct rfd_private *)(rfd->priv);
+ int rc = isams_pp_read(ptinfo->pt, buf);
+ if (rc && term)
+ *term = rfd->rset->term;
+ return rc;
}
-static int r_read (RSFD rfd, void *buf, int *term_index)
+static int r_write (RSFD rfd, const void *buf)
{
- *term_index = 0;
- return isams_pp_read( ((struct rset_pp_info*) rfd)->pt, buf);
+ yaz_log (YLOG_FATAL, "ISAMS set type is read-only");
+ return -1;
}
-static int r_write (RSFD rfd, const void *buf)
+static void r_pos (RSFD rfd, double *current, double *total)
{
- logf (LOG_FATAL, "ISAMS set type is read-only");
- return -1;
+ *current=-1; /* sorry, not implemented yet */
+ *total=-1;
}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
projects / idzebra-moved-to-github.git / blobdiff