/**

 * Copyright (c) 2025 Huawei Technologies Co., Ltd.

 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of

 * CANN Open Software License Agreement Version 2.0 (the "License").

 * Please refer to the License for details. You may not use this file except in compliance with the License.

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,

 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

 * See LICENSE in the root of the software repository for the full text of the License.

 */

#ifndef SHARE_MEM_H

#define SHARE_MEM_H

#include "log_error_code.h"

#include "log_system_api.h"



#ifdef __cplusplus

extern "C" {

#endif



typedef enum {

    SHM_ERROR = -1,

    SHM_SUCCEED = 0

} ShmErr;



#define CONFIG_PATH_LEN 512U

#define GLOBAL_ARR_LEN  512U

#define MODULE_ARR_LEN  2048U

#define LEVEL_ARR_LEN   1024U



#define MAGIC_HEAD      0x071C2A5B

#define MAGIC_TAIL      0x4F0B73C1

#define MSGTYPE_TAG     0

#define MSGTYPE_STRUCT  1



typedef struct {

    int32_t magicHead;

    int8_t msgType;

    char resv[503]; // keep total size equal to GLOBAL_ARR_LEN

    int32_t magicTail;

} GloablArr;



#define SHM_SIZE 4096U

#define SHM_MODE 0640



ShmErr ShMemCreat(int32_t *shmId, toolMode perm);

ShmErr ShMemOpen(int32_t *shmId);

ShmErr ShMemWrite(int32_t shmId, const char *value, uint32_t len, uint32_t offset);

ShmErr ShMemRead(int32_t shmId, char *value, size_t len, size_t offset);

void ShMemRemove(void);



#ifdef __cplusplus

}

#endif

#endif /* SHARE_MEM_H */