-/*
- * Copyright (C) 1994-1996, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: rsisamc.c,v $
- * Revision 1.1 1996-10-29 13:41:48 adam
- * First use of isamc.
- *
- */
+/* 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 <rsisamc.h>
-#include <zebrautl.h>
+#include <string.h>
+#include <idzebra/util.h>
+#include <rset.h>
-static void *r_create(const struct rset_control *sel, void *parms,
- int *flags);
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);
+static int r_read (RSFD rfd, void *buf, TERMID *term);
static int r_write (RSFD rfd, const void *buf);
-static int r_score (RSFD rfd, int *score);
+static void r_pos (RSFD rfd, double *current, double *total);
-static const rset_control control =
+static const struct rset_control control =
{
"isamc",
- 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,
- r_score
};
-const rset_control *rset_kind_isamc = &control;
-
struct rset_pp_info {
ISAMC_PP pt;
- struct rset_pp_info *next;
- struct rset_isamc_info *info;
+ void *buf;
};
struct rset_isamc_info {
ISAMC is;
- ISAMC_P pos;
- struct rset_pp_info *ispt_list;
+ ISAM_P pos;
};
-static void *r_create(const struct rset_control *sel, void *parms,
- int *flags)
+static int log_level = 0;
+static int log_level_initialized = 0;
+
+RSET rsisamc_create(NMEM nmem, struct rset_key_control *kcontrol,
+ int scope,
+ ISAMC is, ISAM_P pos, TERMID term)
{
- rset_isamc_parms *pt = parms;
+ RSET rnew = rset_create_base(&control, nmem, kcontrol, scope, term, 0, 0);
struct rset_isamc_info *info;
+ if (!log_level_initialized)
+ {
+ log_level = yaz_log_module_level("rsisamc");
+ log_level_initialized = 1;
+ }
+ info = (struct rset_isamc_info *) nmem_malloc(rnew->nmem, sizeof(*info));
+ info->is = is;
+ info->pos = pos;
+ rnew->priv = info;
+ yaz_log(log_level, "create: term=%p", term);
+ return rnew;
+}
- *flags |= RSET_FLAG_VOLATILE;
- info = xmalloc (sizeof(*info));
- info->is = pt->is;
- info->pos = pt->pos;
- info->ispt_list = NULL;
- return info;
+static void r_delete (RSET ct)
+{
+ yaz_log(log_level, "rsisamc_delete");
}
+
RSFD r_open (RSET ct, int flag)
{
- struct rset_isamc_info *info = ct->buf;
+ struct rset_isamc_info *info = (struct rset_isamc_info *) ct->priv;
+ RSFD rfd;
struct rset_pp_info *ptinfo;
- logf (LOG_DEBUG, "risamc_open");
+ yaz_log(log_level, "risamc_open");
if (flag & RSETF_WRITE)
{
- logf (LOG_FATAL, "ISAMC set type is read-only");
- return NULL;
+ yaz_log(YLOG_FATAL, "ISAMC set type is read-only");
+ return NULL;
}
- ptinfo = xmalloc (sizeof(*ptinfo));
- ptinfo->next = info->ispt_list;
- info->ispt_list = ptinfo;
- ptinfo->pt = isc_pp_open (info->is, info->pos);
- ptinfo->info = info;
- return ptinfo;
+ rfd = rfd_create_base(ct);
+ if (rfd->priv)
+ ptinfo = (struct rset_pp_info *)rfd->priv;
+ else {
+ ptinfo = (struct rset_pp_info *) nmem_malloc (ct->nmem,sizeof(*ptinfo));
+ rfd->priv = ptinfo;
+ ptinfo->buf = nmem_malloc (ct->nmem,ct->keycontrol->key_size);
+ }
+ ptinfo->pt = isamc_pp_open(info->is, info->pos);
+ return rfd;
}
static void r_close (RSFD rfd)
{
- struct rset_isamc_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)
- {
- isc_pp_close ((*ptinfop)->pt);
- *ptinfop = (*ptinfop)->next;
- free (rfd);
- return;
- }
- logf (LOG_FATAL, "r_close but no rfd match!");
- assert (0);
-}
-
-static void r_delete (RSET ct)
-{
- struct rset_isamc_info *info = ct->buf;
-
- logf (LOG_DEBUG, "rsisamc_delete");
- assert (info->ispt_list == NULL);
- xfree (info);
-}
+ struct rset_pp_info *p = (struct rset_pp_info *)(rfd->priv);
-static void r_rewind (RSFD rfd)
-{
- logf (LOG_DEBUG, "rsisamc_rewind");
- abort ();
+ isamc_pp_close(p->pt);
}
-static int r_count (RSET ct)
-{
- return 0;
-}
-static int r_read (RSFD rfd, void *buf)
+static int r_read (RSFD rfd, void *buf, TERMID *term)
{
- return isc_read_key( ((struct rset_pp_info*) rfd)->pt, buf);
+ struct rset_pp_info *p = (struct rset_pp_info *)(rfd->priv);
+ int r;
+ r = isamc_pp_read(p->pt, buf);
+ if (term)
+ *term = rfd->rset->term;
+ yaz_log(log_level, "isamc.r_read");
+ return r;
}
static int r_write (RSFD rfd, const void *buf)
{
- logf (LOG_FATAL, "ISAMC set type is read-only");
+ yaz_log(YLOG_FATAL, "ISAMC set type is read-only");
return -1;
}
-static int r_score (RSFD rfd, int *score)
+static void r_pos (RSFD rfd, double *current, double *total)
{
- *score = -1;
- 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
+ */
+
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