.NET MVC Long轮询

Question

我想要创建方法，当使用AsyncController添加到队列中的某些操作时，这将是我的开始：

public class AsyncTest : AsyncController
{
    public void LongPollAsync()
    {
        AsyncManager.OutstandingOperations.Increment();
        // search for messages and send them out...
        AsyncManager.OutstandingOperations.Decrement();
    }

    public ActionResult LongPollCompleted()
        {
        return Json();
    }
}