public static Task UnwrapActor(this Task <Task> task)
{
if (task == null)
{
throw new ArgumentNullException(nameof(task));
}
return(runtime.StartNew <object>(() =>
{
runtime.WaitForActor(task, false);
switch (task.Status)
{
case TaskStatus.Canceled:
runtime.CancelSelf();
break;
case TaskStatus.Faulted:
throw new AggregateException();
case TaskStatus.RanToCompletion:
var res = task.Result /*OK*/;
if (res == null)
{
runtime.CancelSelf();
}
else
{
runtime.WaitForActor(res, false);
switch (res.Status)
{
case TaskStatus.Canceled:
runtime.CancelSelf();
break;
case TaskStatus.Faulted:
throw new AggregateException();
case TaskStatus.RanToCompletion:
return null;
}
}
break;
default:
runtime.InternalError();
break;
}
throw new InvalidOperationException();
}));
}