1 /* $Id: rsnull.c,v 1.19 2004-08-04 09:59:03 heikki Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
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
30 static void *r_create(RSET ct, const struct rset_control *sel, void *parms);
31 static RSFD r_open (RSET ct, int flag);
32 static void r_close (RSFD rfd);
33 static void r_delete (RSET ct);
34 static void r_rewind (RSFD rfd);
35 static void r_pos (RSFD rfd, zint *current, zint *total);
36 static int r_read (RSFD rfd, void *buf, int *term_index);
37 static int r_write (RSFD rfd, const void *buf);
39 static const struct rset_control control =
53 const struct rset_control *rset_kind_null = &control;
55 static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
57 rset_null_parms *null_parms = (rset_null_parms *) parms;
59 ct->no_rset_terms = 1;
60 ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms));
61 if (parms && null_parms->rset_term)
62 ct->rset_terms[0] = null_parms->rset_term;
64 ct->rset_terms[0] = rset_term_create ("term", -1, "rank-0",
66 ct->rset_terms[0]->nn = 0;
71 static RSFD r_open (RSET ct, int flag)
73 if (flag & RSETF_WRITE)
75 logf (LOG_FATAL, "NULL set type is read-only");
81 static void r_close (RSFD rfd)
85 static void r_delete (RSET ct)
87 rset_term_destroy (ct->rset_terms[0]);
88 xfree (ct->rset_terms);
91 static void r_rewind (RSFD rfd)
93 logf (LOG_DEBUG, "rsnull_rewind");
96 static void r_pos (RSFD rfd, zint *current, zint *total)
105 static int r_read (RSFD rfd, void *buf, int *term_index)
111 static int r_write (RSFD rfd, const void *buf)
113 logf (LOG_FATAL, "NULL set type is read-only");