Some commonly-used process mutex exclusive methods are analyzed in this paper.It advances a no preemptive method which is based on task priority and analyzes its security and high-efficiency.

• 本文分析了实时嵌入式操作系统中几种常用的进程互斥方法,尝试提出一种基于任务优先级的禁止抢占法,并分析了该方法的安全性和高效性。