1 /* $NetBSD: citrus_stdenc.c,v 1.3 2005/10/29 18:02:04 tshiozak Exp $ */
4 * Copyright (c)2003 Citrus Project,
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
29 #include <sys/types.h>
35 #include "citrus_namespace.h"
36 #include "citrus_types.h"
37 #include "citrus_module.h"
38 #include "citrus_stdenc.h"
39 #include "citrus_none.h"
41 struct _citrus_stdenc _citrus_stdenc_default = {
42 &_citrus_NONE_stdenc_ops, /* ce_ops */
43 NULL, /* ce_closure */
45 &_citrus_NONE_stdenc_traits, /* ce_traits */
52 get_state_desc_default(struct _citrus_stdenc * __restrict ce __unused,
53 void * __restrict ps __unused,
55 struct _citrus_stdenc_state_desc * __restrict d __unused)
61 _citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce,
62 char const * __restrict encname,
63 const void * __restrict variable, size_t lenvar)
66 _citrus_module_t handle;
67 struct _citrus_stdenc *ce;
68 _citrus_stdenc_getops_t getops;
70 _DIAGASSERT(encname != NULL);
71 _DIAGASSERT(!lenvar || variable!=NULL);
72 _DIAGASSERT(rce != NULL);
74 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) {
75 *rce = &_citrus_stdenc_default;
78 ce = malloc(sizeof(*ce));
84 ce->ce_closure = NULL;
88 ret = _citrus_load_module(&handle, encname);
92 ce->ce_module = handle;
95 (_citrus_stdenc_getops_t)_citrus_find_getops(ce->ce_module,
102 ce->ce_ops = (struct _citrus_stdenc_ops *)malloc(sizeof(*ce->ce_ops));
103 if (ce->ce_ops == NULL) {
108 ret = (*getops)(ce->ce_ops, sizeof(*ce->ce_ops),
109 _CITRUS_STDENC_ABI_VERSION);
113 /* If return ABI version is not expected, should fixup it */
114 if (ce->ce_ops->eo_abi_version < 0x00000002) {
115 ce->ce_ops->eo_get_state_desc = &get_state_desc_default;
118 /* validation check */
119 if (ce->ce_ops->eo_init == NULL ||
120 ce->ce_ops->eo_uninit == NULL ||
121 ce->ce_ops->eo_init_state == NULL ||
122 ce->ce_ops->eo_mbtocs == NULL ||
123 ce->ce_ops->eo_cstomb == NULL ||
124 ce->ce_ops->eo_mbtowc == NULL ||
125 ce->ce_ops->eo_wctomb == NULL ||
126 ce->ce_ops->eo_get_state_desc == NULL)
129 /* allocate traits */
130 ce->ce_traits = malloc(sizeof(*ce->ce_traits));
131 if (ce->ce_traits == NULL) {
135 /* init and get closure */
136 ret = (*ce->ce_ops->eo_init)(ce, variable, lenvar, ce->ce_traits);
145 _citrus_stdenc_close(ce);
150 _citrus_stdenc_close(struct _citrus_stdenc *ce)
153 _DIAGASSERT(ce != NULL);
155 if (ce == &_citrus_stdenc_default)
160 if (ce->ce_closure && ce->ce_ops->eo_uninit)
161 (*ce->ce_ops->eo_uninit)(ce);
165 _citrus_unload_module(ce->ce_module);
175 _citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce,
176 char const * __restrict encname,
177 const void * __restrict variable, size_t lenvar)
179 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) {
180 *rce = &_citrus_stdenc_default;
188 _citrus_stdenc_close(struct _citrus_stdenc *ce)