using System;
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using System.Collections.Generic;
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using System.Text;
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using HDL_ON.Entity;
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using HDL_ON.UI;
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using Shared;
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namespace HDL_ON.DriverLayer
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{
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/// <summary>
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/// bus数据包
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/// </summary>
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public class Packet
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{
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/// <summary>
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/// 缓冲区大小
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/// Link协议现在一个包的数据比较大，缓冲区太小存不完全部数据 2023-07-14 16:03:56 wxr
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/// </summary>
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public const int Size = 1024 * 10;
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/// <summary>
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/// 接收到的数据
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/// </summary>
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public byte[] Bytes;
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/// <summary>
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/// 数据发送IP地址
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/// </summary>
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public System.Net.EndPoint RemoteEndPoint;
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public Packet()
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{
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this.Bytes = new byte[Size];
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RemoteEndPoint = new System.Net.IPEndPoint(System.Net.IPAddress.Any, 0);
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}
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public Packet(byte[] data, System.Net.EndPoint remoteEndPoint)
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{
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this.Bytes = data;
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this.RemoteEndPoint = remoteEndPoint;
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}
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/// <summary>
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/// 记录已经发送数据出去的时间
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/// </summary>
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public DateTime FlagDateTime;
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/// <summary>
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/// 已经发送了多少数
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/// </summary>
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public int HaveSendCount;
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/// <summary>
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/// 处理接收到的数据
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/// </summary>
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public virtual void Manager()
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{
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//对于操作数据库的时间比较长的，可以创建另一个线程处理
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if (!"HDLMIRACLE".Equals(Encoding.ASCII.GetString(Bytes, 4, 10)))
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{
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return;
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}
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byte subnetID = this.Bytes[17]; //源子网号
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byte deviceID = this.Bytes[18]; //源设备号
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//源设备类型
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int deviceType = this.Bytes[19] * 256 + this.Bytes[20];
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byte targetSubnetID = this.Bytes[23];
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byte targetDeviceID = this.Bytes[24];
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//不是要接收的指令就返回
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if (!((targetSubnetID == 0 && targetDeviceID == 252) || (targetSubnetID == 0xff && targetDeviceID == 0xff)))
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{
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return;
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}
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byte[] usefulBytes = null;
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if (this.Bytes[16] == 0xFF)
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{
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usefulBytes = new byte[Bytes.Length - 16 - 11];
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Array.Copy(Bytes, 27, usefulBytes, 0, usefulBytes.Length);
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}
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else
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{
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//有用的附加数据
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usefulBytes = new byte[this.Bytes[16] - 11];
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Array.Copy(Bytes, 25, usefulBytes, 0, usefulBytes.Length);
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}
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}
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/// <summary>
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/// byte转16进制字符串
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/// </summary>
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/// <param name="b"></param>
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/// <returns></returns>
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string ByteToHex16(byte b)
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{
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string s = Convert.ToString(b, 16).ToUpper();
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if (s.Length <= 1)
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{
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return "0" + s;
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}
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return s;
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}
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}
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}
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