如何在C＃中使用Tasks.Parallel停止现有任务

Question

What I am looking to do is as follows:

1. Start TCP socket listener on another thread (so it does not block my app.)
2. Start 1..n other processes on other threads which will send data to my listener
3. Stop my listener when all of the other processes have finished.

How would I achieve this using the Parallel library in .Net ?

I presume I need to keep a reference to the initial spawned thread somehow and terminate it when a counter has been reached or something?

Answer 1

What about using a child / parent tasks:

From

http://msdn.microsoft.com/en-us/library/dd537609.aspx

var parent = Task.Factory.StartNew(() =>
{
    Console.WriteLine("Parent task beginning.");

    var child = Task.Factory.StartNew(() =>
    {
        Thread.SpinWait(5000000);
        Console.WriteLine("Attached child completed.");
    }, TaskCreationOptions.AttachedToParent);

});

parent.Wait();
Console.WriteLine("Parent task completed.");

/* Output:
    Parent task beginning.
    Attached task completed.
    Parent task completed.
 */

Answer 2

If you use the asychronous Socket API you will not have to worry about spinning up separate threads for your listening Sockets ... not to mention it runs circles around the sychronous calls on performance.

Food for thought ...