操作系统UNIXSVR4．0周期进程的设计与实现

DESIGN AND IMPLEMENTATION OF UNIX SVR4.0 CYCLE PROCESS

针对ＵＮＩＸＳＶＲ４．０不支持实时进程的周期性执行，本文阐述了在ＵＮＩＸＳＶＲ４．０上实现周期进程的方法，这是对ＵＮＩＸＳＶＲ４．０进行的实时性改造。

In view that UNIX SVR4.0 does not sustain cyclic execution of real-time process,this paper in-troduces a design and implementation of cycle process in UNIX SVR4.0,which is the real timereform of the system.