lib/libc/citrus/modules/citrus_mapper_none.c

   1 /* $NetBSD: src/lib/libc/citrus/modules/citrus_mapper_none.c,v 1.2 2003/06/27 17:53:31 tshiozak Exp $ */
   2 /* $DragonFly: src/lib/libc/citrus/modules/citrus_mapper_none.c,v 1.2 2008/04/10 10:21:01 hasso Exp $ */
   3
   4 /*-
   5  * Copyright (c)2003 Citrus Project,
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  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.
  16  *
  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
  27  * SUCH DAMAGE.
  28  */
  29
  30 #include <sys/types.h>
  31 #include <sys/queue.h>
  32 #include <assert.h>
  33 #include <errno.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 #include "citrus_namespace.h"
  38 #include "citrus_types.h"
  39 #include "citrus_module.h"
  40 #include "citrus_hash.h"
  41 #include "citrus_mapper.h"
  42 #include "citrus_mapper_none.h"
  43
  44 /* ---------------------------------------------------------------------- */
  45
  46 _CITRUS_MAPPER_DECLS(mapper_none);
  47 _CITRUS_MAPPER_DEF_OPS(mapper_none);
  48
  49
  50 /* ---------------------------------------------------------------------- */
  51
  52 int
  53 _citrus_mapper_none_mapper_getops(struct _citrus_mapper_ops *ops,
  54                                   size_t lenops, uint32_t expected_version)
  55 {
  56         if (expected_version<_CITRUS_MAPPER_ABI_VERSION || lenops<sizeof(*ops))
  57                 return (EINVAL);
  58
  59         memcpy(ops, &_citrus_mapper_none_mapper_ops,
  60                sizeof(_citrus_mapper_none_mapper_ops));
  61
  62         return 0;
  63 }
  64
  65 static int
  66 /*ARGSUSED*/
  67 _citrus_mapper_none_mapper_init(struct _citrus_mapper_area *__restrict ma,
  68                                 struct _citrus_mapper * __restrict cm,
  69                                 const char * __restrict dir,
  70                                 const void * __restrict var, size_t lenvar,
  71                                 struct _citrus_mapper_traits * __restrict mt,
  72                                 size_t lenmt)
  73 {
  74
  75         _DIAGASSERT(cm && dir && mt);
  76
  77         if (lenmt<sizeof(*mt))
  78                 return (EINVAL);
  79
  80         cm->cm_closure = NULL;
  81         mt->mt_src_max = mt->mt_dst_max = 1;    /* 1:1 converter */
  82         mt->mt_state_size = 0;                  /* stateless */
  83
  84         return 0;
  85 }
  86
  87 static void
  88 /*ARGSUSED*/
  89 _citrus_mapper_none_mapper_uninit(struct _citrus_mapper *cm)
  90 {
  91 }
  92
  93 static int
  94 /*ARGSUSED*/
  95 _citrus_mapper_none_mapper_convert(struct _citrus_mapper * __restrict cm,
  96                                    _citrus_index_t * __restrict dst,
  97                                    _citrus_index_t src, void * __restrict ps)
  98 {
  99         *dst = src;
 100         return _CITRUS_MAPPER_CONVERT_SUCCESS;
 101 }
 102
 103 static void
 104 /*ARGSUSED*/
 105 _citrus_mapper_none_mapper_init_state(struct _citrus_mapper * __restrict cm,
 106                                       void * __restrict ps)
 107 {
 108 }