Shows how to set up a FIFO data queue for sharing data between real-time tasks and user-level applications. The RT task creates two FIFOs, one for commands in from the user process and one for status back to the user process. As declared in

链队列(存储结构由c3-2.h定义)的基本操作(9个) -Chain queue (storage structure by c3-2 h definition) the basic operation of (9)

Static routing is very simple. Each node has a routing table where each entry has the destination and the next node. On receiving a packet, a node find the entry corresponding to the packet s destination, and forwards it to the next node. If there is