root/lib/libc/citrus/citrus_lc_template.h
/* $NetBSD: citrus_lc_template.h,v 1.2 2009/01/11 02:46:24 christos Exp $ */

/*-
 * Copyright (c)2008 Citrus Project,
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _CITRUS_LC_TEMPLATE_H_
#define _CITRUS_LC_TEMPLATE_H_

static __inline int
_PREFIX(create_impl)(const char * __restrict root,
    const char * __restrict name, _CATEGORY_TYPE ** __restrict pdata)
{
        char path[PATH_MAX + 1];
        int ret;
        struct _region file;
        struct _citrus_db *db;
        struct _memstream ms;
        _CATEGORY_TYPE *data;

        snprintf(path, sizeof(path),
            "%s/%s/" _CATEGORY_DB, root, name);
        ret = _map_file(&file, path);
        if (ret) {
                ret = ENOENT;
        } else {
                data = malloc(sizeof(*data));
                if (!data) {
                        ret = ENOMEM;
                } else {
                        ret = _db_open(&db, &file, _CATEGORY_MAGIC,
                            &_db_hash_std, NULL);
                        if (!ret) {
                                ret = _PREFIX(init_normal)(data, db);
                                _db_close(db);
                        } else {
                                _memstream_bind(&ms, &file);
                                ret = _PREFIX(init_fallback)(data, &ms);
                        }
                        if (!ret)
                                *pdata = data;
                        else
                                free(data);
                }
                _unmap_file(&file);
        }
        return ret;
}

#include "nb_lc_template.h"

#endif /* _CITRUS_LC_TEMPLATE_H_ */