Does one socket.writeObject(obj) cause one ProgressEvent.SOCKET_DATA event?

I use Air2.0 ServerSocket to communite with flash Socket client by using AMF.

But network may not work correctly all the time. If one writeObject operation on client side cause 2 or more ProgressEvent.SOCKET_DATA on server side then we can not read correct object in ProgressEvent.SOCKET_DATA event handler.

Does one socket.writeObject(obj) cause one ProgressEvent.SOCKET_DATA event?