multithreading - Stop AcceptTcpClient on CancellationToken -


is there way in .net4 check cancellationtoken while accepting clients synchronously.

    while (!token.iscancellationrequested)     {         //change somehow use check cancellation keep blocking         tcpclient client = _tcplistener.accepttcpclient();         var client= new myclient(client);         _clients.add(telemetryclient);     }

the best far, isn't clean enough:

        while (!token.iscancellationrequested)         {             var accepttask = task<tcpclient>.factory.fromasync(_tcplistener.beginaccepttcpclient, _tcplistener.endaccepttcpclient, null);             var tokentask = task.factory.startnew(() =>                 {                     while (!token.iscancellationrequested)                     {                         thread.sleep(1000);                     }                     return;                 }, token);             task.waitany(new task[] { accepttask ,tokentask}, token);              if (token.iscancellationrequested)                 break;              tcpclient client = accepttask.result;//_tcplistener.accepttcpclient();             var client = new myclient(client);             _clients.add(telemetryclient);         }

isn't sufficient task.waitany(accepttask, token)?

ie i'm not seeing why tokentask required.

also, if cancellation occurs , accepttask suffers exception, might find 'unobserved exception' situation arises. consider using taskscheduler.unobservedtaskexception catch (and ignore) those.

-mike


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