1 /*	$NetBSD: citrus_mapper_none.c,v 1.2 2003/06/27 17:53:31 tshiozak Exp $	*/
2 
3 /*-
4  * Copyright (c)2003 Citrus Project,
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 #if defined(LIBC_SCCS) && !defined(lint)
31 __RCSID("$NetBSD: citrus_mapper_none.c,v 1.2 2003/06/27 17:53:31 tshiozak Exp $");
32 #endif /* LIBC_SCCS and not lint */
33 
34 #include <assert.h>
35 #include <errno.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <sys/queue.h>
39 
40 #include "citrus_namespace.h"
41 #include "citrus_types.h"
42 #include "citrus_module.h"
43 #include "citrus_hash.h"
44 #include "citrus_mapper.h"
45 #include "citrus_mapper_none.h"
46 
47 /* ---------------------------------------------------------------------- */
48 
49 _CITRUS_MAPPER_DECLS(mapper_none);
50 _CITRUS_MAPPER_DEF_OPS(mapper_none);
51 
52 
53 /* ---------------------------------------------------------------------- */
54 
55 int
56 _citrus_mapper_none_mapper_getops(struct _citrus_mapper_ops *ops,
57 				  size_t lenops, uint32_t expected_version)
58 {
59 	if (expected_version<_CITRUS_MAPPER_ABI_VERSION || lenops<sizeof(*ops))
60 		return (EINVAL);
61 
62 	memcpy(ops, &_citrus_mapper_none_mapper_ops,
63 	       sizeof(_citrus_mapper_none_mapper_ops));
64 
65 	return 0;
66 }
67 
68 static int
69 /*ARGSUSED*/
70 _citrus_mapper_none_mapper_init(struct _citrus_mapper_area *__restrict ma,
71 				struct _citrus_mapper * __restrict cm,
72 				const char * __restrict dir,
73 				const void * __restrict var, size_t lenvar,
74 				struct _citrus_mapper_traits * __restrict mt,
75 				size_t lenmt)
76 {
77 
78 	_DIAGASSERT(cm && dir && mt);
79 
80 	if (lenmt<sizeof(*mt))
81 		return (EINVAL);
82 
83 	cm->cm_closure = NULL;
84 	mt->mt_src_max = mt->mt_dst_max = 1;	/* 1:1 converter */
85 	mt->mt_state_size = 0;			/* stateless */
86 
87 	return 0;
88 }
89 
90 static void
91 /*ARGSUSED*/
92 _citrus_mapper_none_mapper_uninit(struct _citrus_mapper *cm)
93 {
94 }
95 
96 static int
97 /*ARGSUSED*/
98 _citrus_mapper_none_mapper_convert(struct _citrus_mapper * __restrict cm,
99 				   _citrus_index_t * __restrict dst,
100 				   _citrus_index_t src, void * __restrict ps)
101 {
102 	*dst = src;
103 	return _CITRUS_MAPPER_CONVERT_SUCCESS;
104 }
105 
106 static void
107 /*ARGSUSED*/
108 _citrus_mapper_none_mapper_init_state(struct _citrus_mapper * __restrict cm,
109 				      void * __restrict ps)
110 {
111 }
112