1 /* $NetBSD: src/lib/libc/citrus/modules/citrus_mapper_serial.c,v 1.2 2003/07/12 15:39:20 tshiozak Exp $ */
2 /* $DragonFly: src/lib/libc/citrus/modules/citrus_mapper_serial.c,v 1.3 2008/04/10 10:21:01 hasso 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/types.h>
31 #include <sys/queue.h>
39 #include "citrus_namespace.h"
40 #include "citrus_types.h"
41 #include "citrus_bcs.h"
42 #include "citrus_module.h"
43 #include "citrus_region.h"
44 #include "citrus_memstream.h"
45 #include "citrus_mmap.h"
46 #include "citrus_hash.h"
47 #include "citrus_mapper.h"
48 #include "citrus_mapper_serial.h"
50 /* ---------------------------------------------------------------------- */
52 _CITRUS_MAPPER_DECLS(mapper_serial);
53 _CITRUS_MAPPER_DEF_OPS(mapper_serial);
55 #define _citrus_mapper_parallel_mapper_init \
56 _citrus_mapper_serial_mapper_init
57 #define _citrus_mapper_parallel_mapper_uninit \
58 _citrus_mapper_serial_mapper_uninit
59 #define _citrus_mapper_parallel_mapper_init_state \
60 _citrus_mapper_serial_mapper_init_state
61 static int _citrus_mapper_parallel_mapper_convert(
62 struct _citrus_mapper * __restrict, _index_t * __restrict, _index_t,
65 CITRUS_MODULE(mapper_parallel, mapper, _citrus_mapper_parallel_mapper_getops)
66 _CITRUS_MAPPER_DEF_OPS(mapper_parallel);
67 #undef _citrus_mapper_parallel_mapper_init
68 #undef _citrus_mapper_parallel_mapper_uninit
69 #undef _citrus_mapper_parallel_mapper_init_state
72 /* ---------------------------------------------------------------------- */
75 STAILQ_ENTRY(maplink) ml_entry;
76 struct _mapper *ml_mapper;
78 STAILQ_HEAD(maplist, maplink);
80 struct _citrus_mapper_serial {
81 struct maplist sr_mappers;
85 _citrus_mapper_serial_mapper_getops(struct _citrus_mapper_ops *ops,
86 size_t lenops, uint32_t expected_version)
88 if (expected_version<_CITRUS_MAPPER_ABI_VERSION || lenops<sizeof(*ops))
91 memcpy(ops, &_citrus_mapper_serial_mapper_ops,
92 sizeof(_citrus_mapper_serial_mapper_ops));
98 _citrus_mapper_parallel_mapper_getops(struct _citrus_mapper_ops *ops,
99 size_t lenops, uint32_t expected_version)
101 if (expected_version<_CITRUS_MAPPER_ABI_VERSION || lenops<sizeof(*ops))
104 memcpy(ops, &_citrus_mapper_parallel_mapper_ops,
105 sizeof(_citrus_mapper_parallel_mapper_ops));
111 uninit(struct _citrus_mapper_serial *sr)
115 while ((ml = STAILQ_FIRST(&sr->sr_mappers)) != NULL) {
116 STAILQ_REMOVE_HEAD(&sr->sr_mappers, ml_entry);
117 _mapper_close(ml->ml_mapper);
123 parse_var(struct _citrus_mapper_area *__restrict ma,
124 struct _citrus_mapper_serial *sr, struct _memstream *ms)
128 char mapname[PATH_MAX];
131 STAILQ_INIT(&sr->sr_mappers);
133 /* remove beginning white spaces */
134 _memstream_skip_ws(ms);
135 if (_memstream_iseof(ms))
137 /* cut down a mapper name */
138 _memstream_chr(ms, &r, ',');
139 snprintf(mapname, sizeof(mapname), "%.*s",
140 (int)_region_size(&r), (char *)_region_head(&r));
141 /* remove trailing white spaces */
142 mapname[_bcs_skip_nonws(mapname)-mapname] = '\0';
143 /* create a new mapper record */
144 ml = malloc(sizeof(*ml));
147 ret = _mapper_open(ma, &ml->ml_mapper, mapname);
152 /* support only 1:1 and stateless converter */
153 if (_mapper_get_src_max(ml->ml_mapper) != 1 ||
154 _mapper_get_dst_max(ml->ml_mapper) != 1 ||
155 _mapper_get_state_size(ml->ml_mapper) != 0) {
159 STAILQ_INSERT_TAIL(&sr->sr_mappers, ml, ml_entry);
166 _citrus_mapper_serial_mapper_init(struct _citrus_mapper_area *__restrict ma,
167 struct _citrus_mapper * __restrict cm,
168 const char * __restrict dir,
169 const void * __restrict var, size_t lenvar,
170 struct _citrus_mapper_traits * __restrict mt,
173 struct _citrus_mapper_serial *sr;
174 struct _memstream ms;
177 _DIAGASSERT(cm && dir && mt);
179 if (lenmt<sizeof(*mt))
182 sr = malloc(sizeof(*sr));
186 _region_init(&r, (void *)var, lenvar);
187 _memstream_bind(&ms, &r);
188 if (parse_var(ma, sr, &ms)) {
194 mt->mt_src_max = mt->mt_dst_max = 1; /* 1:1 converter */
195 mt->mt_state_size = 0; /* stateless */
202 _citrus_mapper_serial_mapper_uninit(struct _citrus_mapper *cm)
204 if (cm && cm->cm_closure) {
205 uninit(cm->cm_closure);
206 free(cm->cm_closure);
212 _citrus_mapper_serial_mapper_convert(struct _citrus_mapper * __restrict cm,
213 _index_t * __restrict dst, _index_t src,
214 void * __restrict ps)
217 struct _citrus_mapper_serial *sr;
220 _DIAGASSERT(cm && cm->cm_closure);
223 STAILQ_FOREACH(ml, &sr->sr_mappers, ml_entry) {
224 ret = _mapper_convert(ml->ml_mapper, &src, src, NULL);
225 if (ret != _MAPPER_CONVERT_SUCCESS)
229 return _MAPPER_CONVERT_SUCCESS;
234 _citrus_mapper_parallel_mapper_convert(struct _citrus_mapper * __restrict cm,
235 _index_t * __restrict dst, _index_t src,
236 void * __restrict ps)
239 struct _citrus_mapper_serial *sr;
243 _DIAGASSERT(cm && cm->cm_closure);
246 STAILQ_FOREACH(ml, &sr->sr_mappers, ml_entry) {
247 ret = _mapper_convert(ml->ml_mapper, &tmp, src, NULL);
248 if (ret == _MAPPER_CONVERT_SUCCESS) {
250 return _MAPPER_CONVERT_SUCCESS;
251 } else if (ret == _MAPPER_CONVERT_ILSEQ)
252 return _MAPPER_CONVERT_ILSEQ;
254 return _MAPPER_CONVERT_NONIDENTICAL;
259 _citrus_mapper_serial_mapper_init_state(struct _citrus_mapper * __restrict cm,
260 void * __restrict ps)