lib/libc/citrus/modules/citrus_mapper_none.c

   1 /*      $NetBSD: citrus_mapper_none.c,v 1.2 2003/06/27 17:53:31 tshiozak Exp $  */
   2
   3 /*-
   4  * Copyright (c)2003 Citrus Project,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  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.
  15  *
  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
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 #if defined(LIBC_SCCS) && !defined(lint)
  31 __RCSID("$NetBSD: citrus_mapper_none.c,v 1.2 2003/06/27 17:53:31 tshiozak Exp $");
  32 #endif /* LIBC_SCCS and not lint */
  33
  34 #include <assert.h>
  35 #include <errno.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <sys/queue.h>
  39
  40 #include "citrus_namespace.h"
  41 #include "citrus_types.h"
  42 #include "citrus_module.h"
  43 #include "citrus_hash.h"
  44 #include "citrus_mapper.h"
  45 #include "citrus_mapper_none.h"
  46
  47 /* ---------------------------------------------------------------------- */
  48
  49 _CITRUS_MAPPER_DECLS(mapper_none);
  50 _CITRUS_MAPPER_DEF_OPS(mapper_none);
  51
  52
  53 /* ---------------------------------------------------------------------- */
  54
  55 int
  56 _citrus_mapper_none_mapper_getops(struct _citrus_mapper_ops *ops,
  57                                   size_t lenops, uint32_t expected_version)
  58 {
  59         if (expected_version<_CITRUS_MAPPER_ABI_VERSION || lenops<sizeof(*ops))
  60                 return (EINVAL);
  61
  62         memcpy(ops, &_citrus_mapper_none_mapper_ops,
  63                sizeof(_citrus_mapper_none_mapper_ops));
  64
  65         return 0;
  66 }
  67
  68 static int
  69 /*ARGSUSED*/
  70 _citrus_mapper_none_mapper_init(struct _citrus_mapper_area *__restrict ma,
  71                                 struct _citrus_mapper * __restrict cm,
  72                                 const char * __restrict dir,
  73                                 const void * __restrict var, size_t lenvar,
  74                                 struct _citrus_mapper_traits * __restrict mt,
  75                                 size_t lenmt)
  76 {
  77
  78         _DIAGASSERT(cm && dir && mt);
  79
  80         if (lenmt<sizeof(*mt))
  81                 return (EINVAL);
  82
  83         cm->cm_closure = NULL;
  84         mt->mt_src_max = mt->mt_dst_max = 1;    /* 1:1 converter */
  85         mt->mt_state_size = 0;                  /* stateless */
  86
  87         return 0;
  88 }
  89
  90 static void
  91 /*ARGSUSED*/
  92 _citrus_mapper_none_mapper_uninit(struct _citrus_mapper *cm)
  93 {
  94 }
  95
  96 static int
  97 /*ARGSUSED*/
  98 _citrus_mapper_none_mapper_convert(struct _citrus_mapper * __restrict cm,
  99                                    _citrus_index_t * __restrict dst,
 100                                    _citrus_index_t src, void * __restrict ps)
 101 {
 102         *dst = src;
 103         return _CITRUS_MAPPER_CONVERT_SUCCESS;
 104 }
 105
 106 static void
 107 /*ARGSUSED*/
 108 _citrus_mapper_none_mapper_init_state(struct _citrus_mapper * __restrict cm,
 109                                       void * __restrict ps)
 110 {
 111 }