397 lines
13 KiB
C#
397 lines
13 KiB
C#
using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Sockets;
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using System.Net;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using DocumentFormat.OpenXml.VariantTypes;
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namespace LeatherApp.Device
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{
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public class DL_EN1Dev
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{
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TCPClient tCPClient;
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public DL_EN1Dev()
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{
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}
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public bool startDev(string localIp, int port)
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{
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tCPClient = new TCPClient(localIp, port);
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return tCPClient.TcpClientStart();
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}
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public void stopDev()
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{
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tCPClient.CloseAll();
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}
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public bool GetValue(out double val1, out double val2, out double val3)
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{
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val1 = val2 = val3 = 0;
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bool ret = true;
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string recv;
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ret = tCPClient.SendMessage($"M0\r\n");
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if ( !ret )
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{
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val1 = val2 = val3 = 7;
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return false;
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}
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Thread.Sleep(20);
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ret = tCPClient.ReceiveMessage(out recv);
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if (!ret)
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{
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val1 = val2 = val3 = 8;
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return false;
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}
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if (string.IsNullOrEmpty(recv))
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{
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val1 = val2 = val3 = 9;
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return false;
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}
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try
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{
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var dataString = recv.Split(',');
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ret = double.TryParse(dataString[1], out val1);
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val1 = val1 / 1000;
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ret = double.TryParse(dataString[2], out val2);
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val2 = val2 / 1000;
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ret = double.TryParse(dataString[3], out val3);
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val3 = val3 / 1000;
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}
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catch {
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val1 = val2 = val3 = -10;
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return false;
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}
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return true;
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}
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}
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//客户端类
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public class TCPClient
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{
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//private TcpListener tcpListener = null;
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private TcpClient tcpClient;
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private IPAddress localIP;
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private NetworkStream stream;
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private int port;
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//private int buffer_length = 0;
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private bool isConnected;
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Thread myThread = null;
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CancellationTokenSource cts;
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/// <summary>
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/// 接收队列的上限
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/// </summary>
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public int comDDLength = 100;
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/// <summary>
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/// 客户端的连接状态
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/// </summary>
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public bool IsConnected
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{
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get { return this.isConnected; }
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}
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public TCPClient(string localIp, int port)
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{
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this.localIP = IPAddress.Parse(localIp);
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this.port = port;
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//this.buffer_length = Marshal.SizeOf(dataType);
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}
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public bool TcpClientStart()
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{
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try
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{
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tcpClient = new TcpClient();
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tcpClient.Connect(this.localIP, this.port);
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this.isConnected = true;
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//ThreadStart myThreadDelegate = new ThreadStart(Listening);
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////实例化新线程
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//cts = new CancellationTokenSource();
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//myThread = new Thread(myThreadDelegate);
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//myThread.IsBackground = true;
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//myThread.Start();
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return true;
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}
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catch (Exception)
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{
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this.isConnected = false;
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return false;
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}
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}
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private void Listening()
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{
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try
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{
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while (true)
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{
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// 获取一个数据流对象来进行读取和写入
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this.stream = tcpClient.GetStream();
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if (this.stream.CanRead)
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{
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if (cts.Token.IsCancellationRequested) return;
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byte[] buffer = new byte[256];//new byte[buffer_length];
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int bytesLength = this.stream.Read(buffer, 0, buffer.Length);
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#region 异常情况，服务器突然关闭
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if (bytesLength == 0)
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{
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CloseAll();
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this.isConnected = false;
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//Thread.Sleep(500);
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//while (true)
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//{
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// try
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// {
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// TcpClientStart();
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// break;
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// }
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// catch (Exception)
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// {
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// }
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//}
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//break;
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}
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#endregion
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//object msg = BytesToStuct(buffer, this.type);
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//if (msg == null) continue;
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//lock (this)
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//{
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//}
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}
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}
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}
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catch (System.IO.IOException)//服务器异常断开
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{
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CloseAll();
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this.isConnected = false;
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}
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catch (Exception)
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{
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}
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}
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public bool SendMessage(object sendMsg)
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{
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//把成 ASCII 字符串转化数据字符。
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byte[] sendMsgbyte = null;
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// NetworkStream stream = null;
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//TcpClient tcpClient = new TcpClient();
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try
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{
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//tcpClient.Connect(this.localIP, port);
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this.stream = this.tcpClient.GetStream();
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if (this.stream.CanWrite)
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{
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sendMsgbyte = StructToBytes(sendMsg);
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stream.Write(sendMsgbyte, 0, sendMsgbyte.Length);
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}
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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public bool SendMessage(string sendMsg)
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{
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//把成 ASCII 字符串转化数据字符。
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byte[] sendMsgbyte = null;
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try
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{
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this.stream = this.tcpClient.GetStream();
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if (this.stream.CanWrite)
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{
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sendMsgbyte = System.Text.Encoding.ASCII.GetBytes(sendMsg);
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stream.Write(sendMsgbyte, 0, sendMsgbyte.Length);
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}
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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/// <summary>
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/// 清除缓存区中某条指令
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/// </summary>
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/// <param name="cmdID"></param>
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/// <returns></returns>
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public bool ClearMessage(int cmdID)
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{
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try
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{
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return true;
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}
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catch (Exception)
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{
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return false;
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}
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}
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/// <summary>
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/// 不启用监听功能时可以使用
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/// </summary>
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/// <param name="receiveMsg"></param>
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public bool ReceiveMessage(out string receiveMsg)
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{
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receiveMsg = "";
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try
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{
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// 获取一个数据流对象来进行读取和写入
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stream = tcpClient.GetStream();
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if (this.stream.CanRead)
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{
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byte[] buffer = new byte[this.tcpClient.ReceiveBufferSize];
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this.stream.Read(buffer, 0, this.tcpClient.ReceiveBufferSize);
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receiveMsg = Encoding.Default.GetString(buffer);
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}
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return true;
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}
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catch (SocketException)
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{
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return false;
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//MessageBox.Show(se.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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///// <summary>
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///// 启用监听功能时使用，默认接收队列中的第一个数据
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///// </summary>
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///// <param name="timeOut">超时时间，单位ms</param>
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///// <param name="comData">返回接收到的数据</param>
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///// <returns></returns>
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//public bool ReceiveMessage(double timeOut, out ComData comData)
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//{
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// comData = new ComData(0);
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// try
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// {
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// DateTime startTime = DateTime.Now;
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// while (true)
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// {
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// if (DateTime.Now.Subtract(startTime).TotalMilliseconds > timeOut)
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// return false;
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// if (comDataDic.Count > 0)
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// {
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// foreach (var item in comDataDic.Values)
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// {
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// if (comDataDic.TryRemove(item.cmdID, out comData))
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// {
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// comData.status = 1;
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// return true;
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// }
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// }
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// }
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// }
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// }
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// catch (Exception)
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// {
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// return false;
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// }
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//}
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///// <summary>
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///// 异步接收信息，防止主线程卡死
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///// </summary>
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///// <param name="cmdID"></param>
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///// <param name="timeOut"></param>
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///// <returns></returns>
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//public Task<ComData> ReceiveMsgAsync(double timeOut)
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//{
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// return Task.Run(() =>
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// {
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// ComData comData;
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// ReceiveMessage(timeOut, out comData);
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// return comData;
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// });
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//}
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//// <summary>
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/// 结构体转byte数组
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/// </summary>
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/// <param name="structObj">要转换的结构体</param>
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/// <returns>转换后的byte数组</returns>
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public static byte[] StructToBytes(object structObj)
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{
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//得到结构体的大小
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int size = Marshal.SizeOf(structObj);
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//创建byte数组
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byte[] bytes = new byte[size];
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//分配结构体大小的内存空间
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IntPtr structPtr = Marshal.AllocHGlobal(size);
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//将结构体拷到分配好的内存空间
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Marshal.StructureToPtr(structObj, structPtr, false);
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//从内存空间拷到byte数组
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Marshal.Copy(structPtr, bytes, 0, size);
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//释放内存空间
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Marshal.FreeHGlobal(structPtr);
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//返回byte数组
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return bytes;
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}
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/// <summary>
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/// byte数组转结构体
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/// </summary>
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/// <param name="bytes">byte数组</param>
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/// <param name="type">结构体类型</param>
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/// <returns>转换后的结构体</returns>
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public static object BytesToStuct(byte[] bytes, Type type)
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{
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//得到结构体的大小
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int size = Marshal.SizeOf(type);
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//byte数组长度小于结构体的大小
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if (size > bytes.Length)
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{
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//返回空
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return null;
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}
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//分配结构体大小的内存空间
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IntPtr structPtr = Marshal.AllocHGlobal(size);
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//将byte数组拷到分配好的内存空间
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Marshal.Copy(bytes, 0, structPtr, size);
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//将内存空间转换为目标结构体
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object obj = Marshal.PtrToStructure(structPtr, type);
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//释放内存空间
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Marshal.FreeHGlobal(structPtr);
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//返回结构体
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return obj;
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}
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public void CloseAll()
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{
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this.CloseResource();
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}
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private void CloseResource()
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{
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if (this != null)
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{
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cts.Cancel();
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if (this.stream != null)
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{
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this.stream.Close();
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this.stream.Dispose();
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}
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if (this.tcpClient != null)
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{
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this.tcpClient.Close();
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this.tcpClient = null;
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}
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}
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}
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}
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}
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