1 /* $Id: rsisamb.c,v 1.34 2005-05-24 11:35:43 adam Exp $
2 Copyright (C) 1995-2005
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
25 #include <idzebra/util.h>
29 static RSFD r_open(RSET ct, int flag);
30 static void r_close(RSFD rfd);
31 static void r_delete(RSET ct);
32 static int r_forward(RSFD rfd, void *buf, TERMID *term, const void *untilbuf);
33 static void r_pos(RSFD rfd, double *current, double *total);
34 static int r_read(RSFD rfd, void *buf, TERMID *term);
35 static int r_read_filter(RSFD rfd, void *buf, TERMID *term);
36 static int r_write(RSFD rfd, const void *buf);
38 static const struct rset_control control =
51 static const struct rset_control control_filter =
74 static int log_level = 0;
75 static int log_level_initialized = 0;
77 RSET rsisamb_create(NMEM nmem, struct rset_key_control *kcontrol,
79 ISAMB is, ISAM_P pos, TERMID term)
81 RSET rnew = rset_create_base(
82 kcontrol->filter_func ? &control_filter : &control,
83 nmem, kcontrol, scope, term, 0, 0);
84 struct rset_private *info;
85 if (!log_level_initialized)
87 log_level = yaz_log_module_level("rsisamb");
88 log_level_initialized = 1;
90 info = (struct rset_private *) nmem_malloc(rnew->nmem, sizeof(*info));
94 yaz_log(log_level, "rsisamb_create");
98 static void r_delete(RSET ct)
100 yaz_log(log_level, "rsisamb_delete");
103 RSFD r_open(RSET ct, int flag)
105 struct rset_private *info = (struct rset_private *) ct->priv;
107 struct rfd_private *ptinfo;
109 if (flag & RSETF_WRITE)
111 yaz_log(YLOG_FATAL, "ISAMB set type is read-only");
114 rfd = rfd_create_base(ct);
116 ptinfo = (struct rfd_private *) (rfd->priv);
118 ptinfo = (struct rfd_private *) nmem_malloc(ct->nmem,sizeof(*ptinfo));
119 ptinfo->buf = nmem_malloc(ct->nmem,ct->keycontrol->key_size);
122 ptinfo->pt = isamb_pp_open(info->is, info->pos, ct->scope );
123 yaz_log(log_level, "rsisamb_open");
127 static void r_close(RSFD rfd)
129 struct rfd_private *ptinfo = (struct rfd_private *)(rfd->priv);
130 isamb_pp_close (ptinfo->pt);
131 yaz_log(log_level, "rsisamb_close");
135 static int r_forward(RSFD rfd, void *buf, TERMID *term, const void *untilbuf)
137 struct rfd_private *pinfo = (struct rfd_private *)(rfd->priv);
139 rc = isamb_pp_forward(pinfo->pt, buf, untilbuf);
141 *term = rfd->rset->term;
142 yaz_log(log_level, "rsisamb_forward");
146 static void r_pos(RSFD rfd, double *current, double *total)
148 struct rfd_private *pinfo = (struct rfd_private *)(rfd->priv);
150 isamb_pp_pos(pinfo->pt, current, total);
151 yaz_log(log_level, "isamb.r_pos returning %0.1f/%0.1f",
155 static int r_read(RSFD rfd, void *buf, TERMID *term)
157 struct rfd_private *pinfo = (struct rfd_private *)(rfd->priv);
159 rc = isamb_pp_read(pinfo->pt, buf);
161 *term = rfd->rset->term;
162 yaz_log(log_level, "isamb.r_read ");
166 static int r_read_filter(RSFD rfd, void *buf, TERMID *term)
168 struct rfd_private *pinfo = (struct rfd_private *)rfd->priv;
169 const struct rset_key_control *kctrl = rfd->rset->keycontrol;
171 while((rc = isamb_pp_read(pinfo->pt, buf)))
173 int incl = (*kctrl->filter_func)(buf, kctrl->filter_data);
178 *term = rfd->rset->term;
179 yaz_log(log_level, "isamb.r_read_filter");
183 static int r_write(RSFD rfd, const void *buf)
185 yaz_log(YLOG_FATAL, "ISAMB set type is read-only");