接收队列 receive_queue
接收请求 receive_request -> object_identifier
接收通知 receive_notify -> call_back ?
发送队列 send_queue
发送请求 send_request -> object_identifier + content
对象识别 object_identify
object_id = ip + port
192.168.0.100:6000
原文：http://www.cnblogs.com/zhanll/p/4416021.html