What is a good way to shutdown Threads blocked on NamedPipeServer#WaitForConnection?

Question

I start my application which spawns a number of Threads, each of which creates a NamedPipeServer (.net 3.5 added managed types for Named Pipe IPC) and waits for clients to

Answer 1

I wrote this extension method to solve this problem:

public static void WaitForConnectionEx(this NamedPipeServerStream stream)
{
    var evt = new AutoResetEvent(false);
    Exception e = null;
    stream.BeginWaitForConnection(ar => 
    {
        try
        {
            stream.EndWaitForConnection(ar);
        }
        catch (Exception er)
        {
            e = er;
        }
        evt.Set();
    }, null);
    evt.WaitOne();
    if (e != null)
        throw e; // rethrow exception
}