Long running task with cancellation tocken

LongRunningTask.cs

var cts = new CancellationTokenSource();
var token = cts.Token;

Task.Factory.StartNew(() =>
    {
        while (true)
        {            
            if (cts.IsCancellationRequested)
            {
                return;
            }

            token.WaitHandle.WaitOne(TimeSpan.FromSeconds(10)); //wait
            
        }
    }, token, TaskCreationOptions.LongRunning, TaskScheduler.Default);