-/* $Id: rsisamb.c,v 1.2 2002-08-02 19:26:57 adam Exp $
- Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
- Index Data Aps
-
-This file is part of the Zebra server.
+/* 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
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.
-*/
-
-
+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 <zebrautl.h>
-#include <rsisamb.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);
+#include <idzebra/util.h>
+#include <rset.h>
+#include <string.h>
+
+static RSFD r_open(RSET ct, int flag);
+static void r_close(RSFD rfd);
+static void r_delete(RSET ct);
+static int r_forward(RSFD rfd, void *buf, TERMID *term, const void *untilbuf);
+static void r_pos(RSFD rfd, double *current, double *total);
+static int r_read(RSFD rfd, void *buf, TERMID *term);
+static int r_read_filter(RSFD rfd, void *buf, TERMID *term);
+static int r_write(RSFD rfd, const void *buf);
static const struct rset_control control =
{
- "isamc",
- r_create,
+ "isamb",
+ r_delete,
+ rset_get_one_term,
r_open,
r_close,
- r_delete,
- r_rewind,
- r_count,
+ r_forward,
+ r_pos,
r_read,
r_write,
};
-const struct rset_control *rset_kind_isamb = &control;
+static const struct rset_control control_filter =
+{
+ "isamb",
+ r_delete,
+ rset_get_one_term,
+ r_open,
+ r_close,
+ r_forward,
+ r_pos,
+ r_read_filter,
+ r_write,
+};
-struct rset_pp_info {
+struct rfd_private {
ISAMB_PP pt;
- struct rset_pp_info *next;
- struct rset_isamb_info *info;
- int *countp;
void *buf;
};
-struct rset_isamb_info {
+struct rset_private {
ISAMB is;
- ISAMB_P pos;
- int key_size;
- int (*cmp)(const void *p1, const void *p2);
- struct rset_pp_info *ispt_list;
+ ISAM_P pos;
};
-static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
+static int log_level = 0;
+static int log_level_initialized = 0;
+
+RSET rsisamb_create(NMEM nmem, struct rset_key_control *kcontrol,
+ int scope,
+ ISAMB is, ISAM_P pos, TERMID term)
+{
+ RSET rnew = rset_create_base(
+ kcontrol->filter_func ? &control_filter : &control,
+ nmem, kcontrol, scope, term, 0, 0);
+ struct rset_private *info;
+ assert(pos);
+ if (!log_level_initialized)
+ {
+ log_level = yaz_log_module_level("rsisamb");
+ log_level_initialized = 1;
+ }
+ info = (struct rset_private *) nmem_malloc(rnew->nmem, sizeof(*info));
+ info->is = is;
+ info->pos = pos;
+ rnew->priv = info;
+ yaz_log(log_level, "rsisamb_create");
+ return rnew;
+}
+
+static void r_delete(RSET ct)
{
- rset_isamb_parms *pt = (rset_isamb_parms *) parms;
- struct rset_isamb_info *info;
-
- ct->flags |= RSET_FLAG_VOLATILE;
- info = (struct rset_isamb_info *) xmalloc (sizeof(*info));
- info->is = pt->is;
- info->pos = pt->pos;
- info->key_size = pt->key_size;
- info->cmp = pt->cmp;
- info->ispt_list = NULL;
- ct->no_rset_terms = 1;
- ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms));
- ct->rset_terms[0] = pt->rset_term;
- return info;
+ yaz_log(log_level, "rsisamb_delete");
}
-RSFD r_open (RSET ct, int flag)
+RSFD r_open(RSET ct, int flag)
{
- struct rset_isamb_info *info = (struct rset_isamb_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, "risamb_open");
if (flag & RSETF_WRITE)
{
- logf (LOG_FATAL, "ISAMB set type is read-only");
- return NULL;
+ yaz_log(YLOG_FATAL, "ISAMB 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));
+ ptinfo->buf = nmem_malloc(ct->nmem,ct->keycontrol->key_size);
+ rfd->priv = ptinfo;
}
- ptinfo = (struct rset_pp_info *) xmalloc (sizeof(*ptinfo));
- ptinfo->next = info->ispt_list;
- info->ispt_list = ptinfo;
- ptinfo->pt = isamb_pp_open (info->is, info->pos);
- ptinfo->info = info;
- if (ct->rset_terms[0]->nn < 0)
- ct->rset_terms[0]->nn = isamb_pp_num (ptinfo->pt);
- ct->rset_terms[0]->count = 0;
- ptinfo->countp = &ct->rset_terms[0]->count;
- ptinfo->buf = xmalloc (info->key_size);
- return ptinfo;
+ ptinfo->pt = isamb_pp_open(info->is, info->pos, ct->scope );
+ yaz_log(log_level, "rsisamb_open");
+ return rfd;
}
-static void r_close (RSFD rfd)
+static void r_close(RSFD rfd)
{
- struct rset_isamb_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)
- {
- xfree ((*ptinfop)->buf);
- isamb_pp_close ((*ptinfop)->pt);
- *ptinfop = (*ptinfop)->next;
- xfree (rfd);
- return;
- }
- logf (LOG_FATAL, "r_close but no rfd match!");
- assert (0);
+ struct rfd_private *ptinfo = (struct rfd_private *)(rfd->priv);
+ isamb_pp_close (ptinfo->pt);
+ yaz_log(log_level, "rsisamb_close");
}
-static void r_delete (RSET ct)
-{
- struct rset_isamb_info *info = (struct rset_isamb_info *) ct->buf;
- logf (LOG_DEBUG, "rsisamb_delete");
- assert (info->ispt_list == NULL);
- rset_term_destroy (ct->rset_terms[0]);
- xfree (ct->rset_terms);
- xfree (info);
+static int r_forward(RSFD rfd, void *buf, TERMID *term, const void *untilbuf)
+{
+ struct rfd_private *pinfo = (struct rfd_private *)(rfd->priv);
+ int rc;
+ rc = isamb_pp_forward(pinfo->pt, buf, untilbuf);
+ if (rc && term)
+ *term = rfd->rset->term;
+ yaz_log(log_level, "rsisamb_forward");
+ return rc;
}
-static void r_rewind (RSFD rfd)
-{
- logf (LOG_DEBUG, "rsisamb_rewind");
- abort ();
+static void r_pos(RSFD rfd, double *current, double *total)
+{
+ struct rfd_private *pinfo = (struct rfd_private *)(rfd->priv);
+ assert(rfd);
+ isamb_pp_pos(pinfo->pt, current, total);
+ yaz_log(log_level, "isamb.r_pos returning %0.1f/%0.1f",
+ *current, *total);
}
-static int r_count (RSET ct)
+static int r_read(RSFD rfd, void *buf, TERMID *term)
{
- return 0;
+ struct rfd_private *pinfo = (struct rfd_private *)(rfd->priv);
+ int rc;
+ rc = isamb_pp_read(pinfo->pt, buf);
+ if (rc && term)
+ *term = rfd->rset->term;
+ yaz_log(log_level, "isamb.r_read ");
+ return rc;
}
-static int r_read (RSFD rfd, void *buf, int *term_index)
+static int r_read_filter(RSFD rfd, void *buf, TERMID *term)
{
- struct rset_pp_info *pinfo = (struct rset_pp_info *) rfd;
- int r;
- *term_index = 0;
- r = isamb_pp_read(pinfo->pt, buf);
- if (r > 0)
+ struct rfd_private *pinfo = (struct rfd_private *)rfd->priv;
+ const struct rset_key_control *kctrl = rfd->rset->keycontrol;
+ int rc;
+ while((rc = isamb_pp_read(pinfo->pt, buf)))
{
- if (*pinfo->countp == 0 || (*pinfo->info->cmp)(buf, pinfo->buf) > 1)
- {
- memcpy (pinfo->buf, buf, pinfo->info->key_size);
- (*pinfo->countp)++;
- }
+ int incl = (*kctrl->filter_func)(buf, kctrl->filter_data);
+ if (incl)
+ break;
}
- return r;
+ if (rc && term)
+ *term = rfd->rset->term;
+ yaz_log(log_level, "isamb.r_read_filter");
+ return rc;
}
-static int r_write (RSFD rfd, const void *buf)
+static int r_write(RSFD rfd, const void *buf)
{
- logf (LOG_FATAL, "ISAMB set type is read-only");
+ yaz_log(YLOG_FATAL, "ISAMB set type is read-only");
return -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