1 /* $Id: rsisamb.c,v 1.20 2004-08-31 14:43:42 heikki Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
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
28 #include <../index/index.h> /* for log_keydump. Debugging only */
34 static RSFD r_open (RSET ct, int flag);
35 static void r_close (RSFD rfd);
36 static void r_delete (RSET ct);
37 static void r_rewind (RSFD rfd);
38 static int r_forward(RSFD rfd, void *buf,
39 int (*cmpfunc)(const void *p1, const void *p2),
40 const void *untilbuf);
41 static void r_pos (RSFD rfd, double *current, double *total);
42 static int r_read (RSFD rfd, void *buf);
43 static int r_write (RSFD rfd, const void *buf);
45 static const struct rset_control control =
58 const struct rset_control *rset_kind_isamb = &control;
65 struct rset_isamb_info {
69 int (*cmp)(const void *p1, const void *p2);
72 RSET rsisamb_create( NMEM nmem, int key_size,
73 int (*cmp)(const void *p1, const void *p2),
74 ISAMB is, ISAMB_P pos)
76 RSET rnew=rset_create_base(&control, nmem);
77 struct rset_isamb_info *info;
78 info = (struct rset_isamb_info *) nmem_malloc(rnew->nmem,sizeof(*info));
79 info->key_size = key_size;
87 static void r_delete (RSET ct)
89 logf (LOG_DEBUG, "rsisamb_delete");
92 RSFD r_open (RSET ct, int flag)
94 struct rset_isamb_info *info = (struct rset_isamb_info *) ct->priv;
96 struct rset_pp_info *ptinfo;
98 if (flag & RSETF_WRITE)
100 logf (LOG_FATAL, "ISAMB set type is read-only");
103 rfd=rfd_create_base(ct);
105 ptinfo=(struct rset_pp_info *) (rfd->priv);
107 ptinfo = (struct rset_pp_info *) nmem_malloc (ct->nmem,sizeof(*ptinfo));
108 ptinfo->buf = nmem_malloc (ct->nmem,info->key_size);
111 ptinfo->pt = isamb_pp_open (info->is, info->pos);
115 static void r_close (RSFD rfd)
117 struct rset_pp_info *ptinfo=(struct rset_pp_info *)(rfd->priv);
118 isamb_pp_close (ptinfo->pt);
119 rfd_delete_base(rfd);
123 static void r_rewind (RSFD rfd)
125 logf (LOG_DEBUG, "rsisamb_rewind");
129 static int r_forward(RSFD rfd, void *buf,
130 int (*cmpfunc)(const void *p1, const void *p2),
131 const void *untilbuf)
133 struct rset_pp_info *pinfo=(struct rset_pp_info *)(rfd->priv);
134 return isamb_pp_forward(pinfo->pt, buf, untilbuf);
137 static void r_pos (RSFD rfd, double *current, double *total)
139 struct rset_pp_info *pinfo=(struct rset_pp_info *)(rfd->priv);
141 isamb_pp_pos(pinfo->pt, current, total);
143 logf(LOG_DEBUG,"isamb.r_pos returning %0.1f/%0.1f",
148 static int r_read (RSFD rfd, void *buf)
150 struct rset_pp_info *pinfo=(struct rset_pp_info *)(rfd->priv);
152 return isamb_pp_read(pinfo->pt, buf);
155 static int r_write (RSFD rfd, const void *buf)
157 logf (LOG_FATAL, "ISAMB set type is read-only");