User-166373564 posted
Hi,
There are basically 4 broad mechanisms for doing this.
- Poll a stopping flag
- Use the new cancellation mechanisms in the TPL
- Use wait handles
- Specialized scenarios
- Interrupt the thread via Thread.Interrupt
Ref: https://stackoverflow.com/a/3632642
For example, use the new cancellation mechanisms in the TPL.
Prior to the .NET Framework 4, the .NET Framework provided no built-in way to cancel a thread cooperatively after it was started.
However, in .NET Framework 4, you can use cancellation tokens to cancel threads.
The following example demonstrates how to do this.
using System;
using System.Threading;
public class ServerClass
{
public static void StaticMethod(object obj)
{
CancellationToken ct = (CancellationToken)obj;
Console.WriteLine("ServerClass.StaticMethod is running on another thread.");
// Simulate work that can be canceled.
while (!ct.IsCancellationRequested) {
Thread.SpinWait(50000);
}
Console.WriteLine("The worker thread has been canceled. Press any key to exit.");
Console.ReadKey(true);
}
}
public class Simple
{
public static void Main()
{
// The Simple class controls access to the token source.
CancellationTokenSource cts = new CancellationTokenSource();
Console.WriteLine("Press 'C' to terminate the application...\n");
// Allow the UI thread to capture the token source, so that it
// can issue the cancel command.
Thread t1 = new Thread(() => { if (Console.ReadKey(true).KeyChar.ToString().ToUpperInvariant() == "C")
cts.Cancel(); } );
// ServerClass sees only the token, not the token source.
Thread t2 = new Thread(new ParameterizedThreadStart(ServerClass.StaticMethod));
// Start the UI thread.
t1.Start();
// Start the worker thread and pass it the token.
t2.Start(cts.Token);
t2.Join();
cts.Dispose();
}
}
// The example displays the following output:
// Press 'C' to terminate the application...
//
// ServerClass.StaticMethod is running on another thread.
// The worker thread has been canceled. Press any key to exit.
Ref:
Cancellation in Managed Threads
https://docs.microsoft.com/en-us/dotnet/standard/threading/cancellation-in-managed-threads
CancellationTokenSource Class
https://msdn.microsoft.com/en-us/library/system.threading.cancellationtokensource(v=vs.110).aspx
Regards,
Angie
