设计两个任务tServer和tClient，tClient负责通知tServer处理共享内存中的数据，为数据增加头部信息（可以用一句话模拟）。共享内存要用互斥信号量来保护，通知采用消息队列发送，tServer收到通知后需要给tClient反馈确认消息，如果tClient在一定时间内收不到确认消息，将重发通知，最大重传次数为3-Of design two the task tServer and tClient, tClient responsible for notifying the tServer processing the data in shared memory, increase the data header information (analog) sentence. Shared memory use mutex to protect, send notification message queue tServer receipt of the notification to the tClient feedback confirmation message, if tClient not receive the confirmation message within a certain time, will be re-issued a notice, the maximum number of retransmissions of 3