emsApplication/applications/ems_datahubs/frame_define.h

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#pragma once
#pragma pack(1)
#include "kdefine.h"
__NAMESPACE_BEGIN__(HJ)
#define FRAME_HEADER_LENGTH (5)
#define FRAME_TAILE_LENGTH (4)
typedef enum tagErrorCode : unsigned char
{
ERR_OK = 0X00,
ERR_INVALID_LEN = 0X01,
ERR_INVALID_UTF8 = 0X02,
ERR_INVALID_BUF_LEN = 0X03,
ERR_INVALID_JSON_FMT = 0X04,
ERR_INVALID_FSUCODE = 0X05,
ERR_UNKOWN = 0XFF
}ErrorCode;
typedef enum tagFrameType : unsigned char
{
Frame_Response = 0x00, //返回帧
Frame_Request = 0x01, //请求帧
Frame_DeviceData_Request = 0x02, //来自采集程序的数据请求包,将数据保存到数据库中
}FrameType;
typedef struct tagFrameTail
{
unsigned char frame_delimiter[4] = { 0xEE,0xFF,0xEE,0xFF };
}FrameTail;
typedef struct tagFrame
{
FrameType frame_type; //帧类型
unsigned int frame_len; //帧数据长度
unsigned char frame_content[1]; //帧的内容实际应为json字符串由json内容自解释
tagFrame()
{
frame_type = Frame_Response;
frame_len = 1;
frame_content[0] = ERR_OK;
}
void setErrorFrame(ErrorCode err = ERR_OK)
{
frame_len = 1;
frame_content[0] = err;
}
}MessageFrame;
__NAMESPACE_END__(HJ)
#pragma pack()