TFDB/Src/tinyflashdb.h

/*
 * Copyright (c) 2022, smartmx - smartmx@qq.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * This file is part of the Tiny Flash DataBase Library.
 *
 */
#ifndef _TINY_FLASH_DB_H_
#define _TINY_FLASH_DB_H_

#include "tfdb_port.h"

#define TFDB_VERSION    "0.0.5"

typedef struct _tfdb_index_struct
{
    tfdb_addr_t     flash_addr;/* the start address of the flash block */
    uint16_t        flash_size;/* the size of the flash block */
    uint8_t         value_length;/* the length of value that saved in this flash block */
    uint8_t         end_byte; /* must different to TFDB_VALUE_AFTER_ERASE */
    /* 0x00 is recommended for end_byte, because almost all flash is 0xff after erase. */
} tfdb_index_t;

extern TFDB_Err_Code tfdb_get(const tfdb_index_t *index, uint8_t *rw_buffer, tfdb_addr_t *addr_cache, void *value_to);

extern TFDB_Err_Code tfdb_set(const tfdb_index_t *index, uint8_t *rw_buffer, tfdb_addr_t *addr_cache, void *value_from);

#endif