编写基于管道的消息队列，该消息队列采用管道进行消息发送、存储、传递及接收。该消息队列应用于多线程环境时要保证线程是安全的；所采用的管道可以是由pipe创建的，也可以是命名管道；该消息队列能够接收CLMessage继承体系的消息；该消息队列能融入到本课程所提供的程序库中，能支持线程之间的通信（即需要提供发送消息的通信类，以及消息循环的管理类）。-The preparation of a pipeline-based message queue, the message queue using th

A finite state machine (FSM) is an abstract machine used to model a sequential system or a computer program. An FSM can be represented as a directed graph having a set of N nodes representing states connected with a given set of directed edges. A