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/* This file is part of the Zebra server.
Copyright (C) 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 <string.h>
#include <idzebra/util.h>
#include <rset.h>
static RSFD r_open (RSET ct, int flag);
static void r_close (RSFD rfd);
static void r_delete (RSET ct);
static int r_read (RSFD rfd, void *buf, TERMID *term);
static void r_pos (RSFD rfd, double *current, double *total);
static const struct rset_control control =
{
"isamc",
r_delete,
rset_get_one_term,
r_open,
r_close,
0, /* no forward */
r_pos,
r_read,
rset_no_write,
};
struct rset_pp_info {
ISAMC_PP pt;
void *buf;
};
struct rset_isamc_info {
ISAMC is;
ISAM_P pos;
};
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 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;
}
static void r_delete (RSET ct)
{
yaz_log(log_level, "rsisamc_delete");
}
RSFD r_open (RSET ct, int flag)
{
struct rset_isamc_info *info = (struct rset_isamc_info *) ct->priv;
RSFD rfd;
struct rset_pp_info *ptinfo;
yaz_log(log_level, "risamc_open");
if (flag & RSETF_WRITE)
{
yaz_log(YLOG_FATAL, "ISAMC set type is read-only");
return NULL;
}
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_pp_info *p = (struct rset_pp_info *)(rfd->priv);
isamc_pp_close(p->pt);
}
static int r_read (RSFD rfd, void *buf, TERMID *term)
{
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 void r_pos (RSFD rfd, double *current, double *total)
{
*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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