2 /* $NetBSD: citrus_mapper_serial.c,v 1.2 2003/07/12 15:39:20 tshiozak Exp $ */
5 * SPDX-License-Identifier: BSD-2-Clause
7 * Copyright (c)2003 Citrus Project,
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 #include <sys/queue.h>
42 #include "citrus_namespace.h"
43 #include "citrus_types.h"
44 #include "citrus_bcs.h"
45 #include "citrus_module.h"
46 #include "citrus_region.h"
47 #include "citrus_memstream.h"
48 #include "citrus_mmap.h"
49 #include "citrus_hash.h"
50 #include "citrus_mapper.h"
51 #include "citrus_mapper_serial.h"
53 /* ---------------------------------------------------------------------- */
55 _CITRUS_MAPPER_DECLS(mapper_serial);
56 _CITRUS_MAPPER_DEF_OPS(mapper_serial);
58 #define _citrus_mapper_parallel_mapper_init \
59 _citrus_mapper_serial_mapper_init
60 #define _citrus_mapper_parallel_mapper_uninit \
61 _citrus_mapper_serial_mapper_uninit
62 #define _citrus_mapper_parallel_mapper_init_state \
63 _citrus_mapper_serial_mapper_init_state
64 static int _citrus_mapper_parallel_mapper_convert(
65 struct _citrus_mapper * __restrict, _index_t * __restrict,
66 _index_t, void * __restrict);
67 _CITRUS_MAPPER_DEF_OPS(mapper_parallel);
68 #undef _citrus_mapper_parallel_mapper_init
69 #undef _citrus_mapper_parallel_mapper_uninit
70 #undef _citrus_mapper_parallel_mapper_init_state
73 /* ---------------------------------------------------------------------- */
76 STAILQ_ENTRY(maplink) ml_entry;
77 struct _mapper *ml_mapper;
79 STAILQ_HEAD(maplist, maplink);
81 struct _citrus_mapper_serial {
82 struct maplist sr_mappers;
86 _citrus_mapper_serial_mapper_getops(struct _citrus_mapper_ops *ops)
89 memcpy(ops, &_citrus_mapper_serial_mapper_ops,
90 sizeof(_citrus_mapper_serial_mapper_ops));
96 _citrus_mapper_parallel_mapper_getops(struct _citrus_mapper_ops *ops)
99 memcpy(ops, &_citrus_mapper_parallel_mapper_ops,
100 sizeof(_citrus_mapper_parallel_mapper_ops));
106 uninit(struct _citrus_mapper_serial *sr)
110 while ((ml = STAILQ_FIRST(&sr->sr_mappers)) != NULL) {
111 STAILQ_REMOVE_HEAD(&sr->sr_mappers, ml_entry);
112 _mapper_close(ml->ml_mapper);
118 parse_var(struct _citrus_mapper_area *__restrict ma,
119 struct _citrus_mapper_serial *sr, struct _memstream *ms)
123 char mapname[PATH_MAX];
126 STAILQ_INIT(&sr->sr_mappers);
128 /* remove beginning white spaces */
129 _memstream_skip_ws(ms);
130 if (_memstream_iseof(ms))
132 /* cut down a mapper name */
133 _memstream_chr(ms, &r, ',');
134 snprintf(mapname, sizeof(mapname), "%.*s",
135 (int)_region_size(&r), (char *)_region_head(&r));
136 /* remove trailing white spaces */
137 mapname[_bcs_skip_nonws(mapname)-mapname] = '\0';
138 /* create a new mapper record */
139 ml = malloc(sizeof(*ml));
142 ret = _mapper_open(ma, &ml->ml_mapper, mapname);
147 /* support only 1:1 and stateless converter */
148 if (_mapper_get_src_max(ml->ml_mapper) != 1 ||
149 _mapper_get_dst_max(ml->ml_mapper) != 1 ||
150 _mapper_get_state_size(ml->ml_mapper) != 0) {
154 STAILQ_INSERT_TAIL(&sr->sr_mappers, ml, ml_entry);
161 _citrus_mapper_serial_mapper_init(struct _citrus_mapper_area *__restrict ma __unused,
162 struct _citrus_mapper * __restrict cm, const char * __restrict dir __unused,
163 const void * __restrict var, size_t lenvar,
164 struct _citrus_mapper_traits * __restrict mt, size_t lenmt)
166 struct _citrus_mapper_serial *sr;
167 struct _memstream ms;
170 if (lenmt < sizeof(*mt))
173 sr = malloc(sizeof(*sr));
177 _region_init(&r, __DECONST(void *, var), lenvar);
178 _memstream_bind(&ms, &r);
179 if (parse_var(ma, sr, &ms)) {
185 mt->mt_src_max = mt->mt_dst_max = 1; /* 1:1 converter */
186 mt->mt_state_size = 0; /* stateless */
193 _citrus_mapper_serial_mapper_uninit(struct _citrus_mapper *cm)
196 if (cm && cm->cm_closure) {
197 uninit(cm->cm_closure);
198 free(cm->cm_closure);
204 _citrus_mapper_serial_mapper_convert(struct _citrus_mapper * __restrict cm,
205 _index_t * __restrict dst, _index_t src, void * __restrict ps __unused)
207 struct _citrus_mapper_serial *sr;
212 STAILQ_FOREACH(ml, &sr->sr_mappers, ml_entry) {
213 ret = _mapper_convert(ml->ml_mapper, &src, src, NULL);
214 if (ret != _MAPPER_CONVERT_SUCCESS)
218 return (_MAPPER_CONVERT_SUCCESS);
223 _citrus_mapper_parallel_mapper_convert(struct _citrus_mapper * __restrict cm,
224 _index_t * __restrict dst, _index_t src, void * __restrict ps __unused)
226 struct _citrus_mapper_serial *sr;
232 STAILQ_FOREACH(ml, &sr->sr_mappers, ml_entry) {
233 ret = _mapper_convert(ml->ml_mapper, &tmp, src, NULL);
234 if (ret == _MAPPER_CONVERT_SUCCESS) {
236 return (_MAPPER_CONVERT_SUCCESS);
237 } else if (ret == _MAPPER_CONVERT_ILSEQ)
238 return (_MAPPER_CONVERT_ILSEQ);
240 return (_MAPPER_CONVERT_NONIDENTICAL);
245 _citrus_mapper_serial_mapper_init_state(void)