static void OnReceiverClose(IAsyncResult result)
{
DuplexAmqpLink thisPtr = (DuplexAmqpLink)result.AsyncState;
thisPtr.OnOperationComplete(thisPtr.receiver, result, false);
}
static void OnSenderOpen(IAsyncResult result)
{
DuplexAmqpLink thisPtr = (DuplexAmqpLink)result.AsyncState;
thisPtr.OnOperationComplete(thisPtr.sender, result, true);
}