SCADATrainSys/CCGDServer/Global/YDCommStruct.h

#pragma once

#define CMD_HEAD_LEN	24	
#define CMD_PARAM_LEN	10000
#define UDP_PARAM_LEN	    1020

#define UDP_PARAM_LEN_4K    4092 //4k

#define UDP_PARAM_LEN_8K    8188 //8k

#pragma pack(push)
#pragma pack(1)

typedef struct Command
{
	short  cmd;			//类型
	short  subType;		//子类型
    int  sFrom;			//发送源
    int  sTo; 			//目的地
    int  flags;			//标识
    int  nParamLen;		//参数长度Bytes
    int  reserve1;		//保留

	char   cParam[CMD_PARAM_LEN];

	int GetInfoLen()			{return 24;};			//固定长度，cmd的头信息
	int GetParamLen()			{return nParamLen;};	//参数长度
	int GetBufLen()				{return (GetInfoLen()+GetParamLen());}	//有效数据长度
}COMMAND,*LPCOMMAND;

//typedef struct tagUdpPack
//{
//    int dType;
//	char data[UDP_PARAM_LEN];
//}UDPPACK,*LPUDPPACK;

typedef struct tagUdpPack_4k
{
    int dType;
	char data[UDP_PARAM_LEN_4K];
}UDPPACK_4K, * LPUDPPACK_4K;

typedef struct tagUdpPack_8k
{
    int dType;
	char data[UDP_PARAM_LEN_8K];
}UDPPACK_8K, * LPUDPPACK_8K;
#pragma pack(pop)