2 /* $NetBSD: citrus_stdenc.c,v 1.4 2011/11/19 18:39:58 tnozaki Exp $ */
5 * Copyright (c)2003 Citrus Project,
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
37 #include "citrus_namespace.h"
38 #include "citrus_types.h"
39 #include "citrus_module.h"
40 #include "citrus_none.h"
41 #include "citrus_stdenc.h"
43 struct _citrus_stdenc _citrus_stdenc_default = {
44 &_citrus_NONE_stdenc_ops, /* ce_ops */
45 NULL, /* ce_closure */
47 &_citrus_NONE_stdenc_traits, /* ce_traits */
51 _citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict rce,
52 char const * __restrict encname, const void * __restrict variable,
55 struct _citrus_stdenc *ce;
56 _citrus_module_t handle;
57 _citrus_stdenc_getops_t getops;
60 if (!strcmp(encname, _CITRUS_DEFAULT_STDENC_NAME)) {
61 *rce = &_citrus_stdenc_default;
64 ce = malloc(sizeof(*ce));
70 ce->ce_closure = NULL;
74 ret = _citrus_load_module(&handle, encname);
78 ce->ce_module = handle;
80 getops = (_citrus_stdenc_getops_t)_citrus_find_getops(ce->ce_module,
87 ce->ce_ops = (struct _citrus_stdenc_ops *)malloc(sizeof(*ce->ce_ops));
88 if (ce->ce_ops == NULL) {
93 ret = (*getops)(ce->ce_ops, sizeof(*ce->ce_ops));
97 /* validation check */
98 if (ce->ce_ops->eo_init == NULL ||
99 ce->ce_ops->eo_uninit == NULL ||
100 ce->ce_ops->eo_init_state == NULL ||
101 ce->ce_ops->eo_mbtocs == NULL ||
102 ce->ce_ops->eo_cstomb == NULL ||
103 ce->ce_ops->eo_mbtowc == NULL ||
104 ce->ce_ops->eo_wctomb == NULL ||
105 ce->ce_ops->eo_get_state_desc == NULL) {
110 /* allocate traits */
111 ce->ce_traits = malloc(sizeof(*ce->ce_traits));
112 if (ce->ce_traits == NULL) {
116 /* init and get closure */
117 ret = (*ce->ce_ops->eo_init)(ce, variable, lenvar, ce->ce_traits);
126 _citrus_stdenc_close(ce);
131 _citrus_stdenc_close(struct _citrus_stdenc *ce)
134 if (ce == &_citrus_stdenc_default)
139 if (ce->ce_closure && ce->ce_ops->eo_uninit)
140 (*ce->ce_ops->eo_uninit)(ce);
144 _citrus_unload_module(ce->ce_module);