我的异步I/O回调函数是递归的吗?

 protected void ReadCompleted(IAsyncResult iResult)
    {
        byte[] byIn = (byte[])iResult.AsyncState;
        try
        {
            File.EndRead(iResult);
            try
            {
                HandleDataReceived(byIn);
            }
            finally
            {
                BeginAsyncRead(); //recursion??
            }
        }
        catch (IOException ioexc)
        {
            // Device has been removed!
        }
    }

现在我并不特别反对递归,但我喜欢在编写可能会消耗大量内存的东西时避免递归。 整个函数本身是从BeginAsync()中调用的。