Serial.readline - 內存不足

Question

我正在通過USB端口發送文本的Arduino正在讀取數據。 Arduino每秒發送一次輸出的狀態。在命令接收事件中，我設置了幾個複選框（快門打開或電源開啓，或點亮），並將其收到的數據輸出到多行文本框。
無論如何....它的所有工作，幾秒鐘，然後減慢，最終約10分鐘後，我得到一個內存不足的例外。我無法弄清楚什麼是錯誤的，我假設它在讀取串行數據的類中 - 所以這裏是代碼，任何人都可以看到任何錯誤？

using System; 
using System.IO.Ports; 

namespace WOCA.Core.SerialComms 
{ 
    internal class ArduinoCommunicator : ICommunicator 
    { 
     public event EventHandler<CommsEventsArg> CommandReceived; 

    internal ArduinoCommunicator(string comPort) 
    { 
     Port = new SerialPort(comPort) {BaudRate = 9600, DtrEnable = true}; 
     Port.DataReceived += PortOnDataReceived; 
    } 

    private SerialPort Port { get; set; } 


    public bool IsOpen { get; set; } 


    public void Open() 
    { 
     try 
     { 
      if (!Port.IsOpen) 
      { 
       Port.Open(); 
       IsOpen = true; 
      } 
      else 
      { 
       throw new InvalidSerialCommsException("Serial port already open"); 
      } 
     } 
     catch (Exception ex) 
     { 
      throw new InvalidSerialCommsException("Serial Port error: " + ex.Message); 
     } 
    } 

    public void Close() 
    { 
     try 
     { 
      if (Port.IsOpen) 
      { 
       Port.Close(); 
       IsOpen = false; 
      } 
      else 
      { 
       throw new InvalidSerialCommsException("Serial port not open"); 
      } 
     } 
     catch (Exception) 
     { 

      throw new InvalidSerialCommsException("Serial port error"); 
     } 

    } 

    public void SendCommand(string command) 
    { 
     try 
     { 
      if (Port.IsOpen) 
      { 
       Port.Write(command); 
      } 
      else 
      { 
       throw new InvalidSerialCommsException("Serial port not open"); 
      } 
     } 
     catch (Exception) 
     { 

      throw new InvalidSerialCommsException("Serial port error, the command has not been sent"); 
     } 

    } 

    private void PortOnDataReceived(object sender, SerialDataReceivedEventArgs serialDataReceivedEventArgs) 
    { 
     SerialPort serialPort = sender as SerialPort; 

     if (serialPort != null) 
     { 
      string command = serialPort.ReadLine(); 
      command = command.Remove(command.Length-1,1); 
      CommsEventsArg args = new CommsEventsArg(command); 
      OnCommandReceived(args); 
     } 
    } 

    protected virtual void OnCommandReceived(CommsEventsArg e) 
    { 
     EventHandler<CommsEventsArg> handler = CommandReceived; 
     if (handler != null) 
     { 
      handler(this, e); 
     } 
    } 
} 

}

Answer 1

這可以由類的SerialPort的執行所引起的。它永遠不會控制其他線程，所以終結線程無法最終確定對象並釋放內存。請參閱我的文章吧：http://alexatnet.com/articles/net-memory-management-and-garbage-collector#best-practices

要解決它，你需要添加

Thread.CurrentThread.Join(100) 

例如，它可以被添加到PortOnDataReceived。這將允許終結線程運行等待終結器。