UdpClient Class exsample appears to eat memory until it stops

Question

I modified the example posted in doc UdpClient Class so it can operate in a loop. It runs a while and then it stops while I need it to run forever.
The code to reproduce:

/**********************************************************************************************************************************  

// See https://aka.ms/new-console-template for more information  
//public class UdpClient: IDisposable;  
  
global using System.Net;  
global using System.Net.Sockets;  
global using System.Text;   
  
void test()  
{  
        UdpClient udpClient = new UdpClient(8888);  
        udpClient.Connect("192.168.203.18", 8888);  
        IPEndPoint RemoteIPEndPoint = new IPEndPoint(IPAddress.Any, 0);  
        Byte[] sendBytes = Encoding.ASCII.GetBytes("Is anybody there today?");  
        udpClient.Send(sendBytes, sendBytes.Length);  
        Console.WriteLine("-send completed");  
        Byte[] receiveBytes = udpClient.Receive(ref RemoteIPEndPoint);  
         udpClient.Close();  
}  
   
Console.WriteLine("Hello, World!");  
    while (true) test();  
  
**********************************************************************************************************************\  
  

The other side reply's with "acknowledge". (Wemos D1 Arduino)
The debugger shows a constant increase in memory until it stops.
Note I am on an up-to-date windows 11 system. Running visual studio. And it is the first time I use : ".NET6"
Am I doing something wrong?
Thanks for the answer.
Jan

Answer 1

Hello @Jan Flikweert ,

working with UDP can be challenging.

It seems you tried the 'blocking' version of working with UDP.

Have you tried the async version also?

I made a little adjustment to my project by introducing a Boolean and waiting for the next message using a while loop until the current is handled.

This runs stable in our current project.

MS Learn was not accepting my code samples...

Answer 2

Hello Sander,
Thanks for the reply.
No, I did not try the async version. I did not even know that I was using a blocking version. I just used the example on the MS website and modified it so it would fit my purpose.
I will try it and let you know.
Again thanks for the response.
Jan

Answer 3

Hello Sander,
Again, thanks for the effort. To really solve it I need more time. I don't have that today, but I have a good working tcp version.
(My Async version did not work for a long time. Probably the same kind of problems. Probably something to do with dispose().)

Again thanks for the idea.
Jan
I close this issue.