lib/libc/citrus/citrus_lc_template.h

   1 /* $NetBSD: citrus_lc_template.h,v 1.1.2.2 2009/01/04 17:02:18 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c)2008 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 #ifndef _CITRUS_LC_TEMPLATE_H_
  30 #define _CITRUS_LC_TEMPLATE_H_
  31
  32 static __inline int
  33 _PREFIX(create_impl)(const char * __restrict root,
  34     const char * __restrict name, _CATEGORY_TYPE ** __restrict pdata)
  35 {
  36         char path[PATH_MAX + 1];
  37         int ret;
  38         struct _region file;
  39         struct _citrus_db *db;
  40         struct _memstream ms;
  41         _CATEGORY_TYPE *data;
  42
  43         snprintf(path, sizeof(path),
  44             "%s/%s/" _CATEGORY_DB, root, name);
  45         ret = _map_file(&file, path);
  46         if (ret) {
  47                 ret = ENOENT;
  48         } else {
  49                 data = malloc(sizeof(*data));
  50                 if (!data) {
  51                         ret = ENOMEM;
  52                 } else {
  53                         ret = _db_open(&db, &file, _CATEGORY_MAGIC,
  54                             &_db_hash_std, NULL);
  55                         if (!ret) {
  56                                 ret = _PREFIX(init_normal)(data, db);
  57                                 _db_close(db);
  58                         } else {
  59                                 _memstream_bind(&ms, &file);
  60                                 ret = _PREFIX(init_fallback)(data, &ms);
  61                         }
  62                         if (!ret)
  63                                 *pdata = data;
  64                         else
  65                                 free(data);
  66                 }
  67                 _unmap_file(&file);
  68         }
  69         return ret;
  70 }
  71
  72 #include "nb_lc_template.h"
  73
  74 #endif /* _CITRUS_LC_TEMPLATE_H_ */