/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */

#ifndef URD_KV_H
#define URD_KV_H

#include "ka_type.h"
#include "ka_common_pub.h"
#include "ka_task_pub.h"

#define KV_TABLE_BIT 10
#define KV_TABLE_SIZE (0x1 << KV_TABLE_BIT)
#define KV_TABLE_MASK (KV_TABLE_SIZE - 1)

#define KV_KEY_MAX_LEN 256
#define KV_VALUE_MAX_LEN 256

#define STATE_INIT 1U
#define STATE_ACTIVE 2U
#define STATE_STOP 3U

struct dms_kv_node {
    ka_hlist_node_t hnode;
    char *key;
    int data_len;
    void *data;
};

struct dms_kv_table {
    ka_hlist_head_t *table;
    ka_mutex_t lock;
};
typedef ssize_t (*key_dump_handle)(void *node, char *buf, ssize_t *offset);
void dms_kv_dump(char *buf, ssize_t *offset, key_dump_handle handle);
int dms_kv_init(void);
int dms_kv_get(const char *key, void *value, int len);
int dms_kv_set(const char *key, void *value, int len);
int dms_kv_del(const char *key);
int dms_kv_get_ex(const char* key, void* value, int len);
void dms_kv_uninit(void);

#endif