嵌入式RTOS优先级天花板协议研究  

Research on priority ceiling protocol of embedded RTOS

作　　者：胡国珍[1] 范生凯[2] 

机构地区：[1]湖北黄石理工学院电气与电子信息工程学院 [2]91551部队

出　　处：《计算机工程与设计》2009年第8期1893-1895,共3页Computer Engineering and Design

摘　　要：优先级天花板协议的研究是为了解决嵌入式实时操作系统中存在的死锁问题和优先级反转问题。通过对优先级天花板协议调度和资源分配规则的分析,从任务优先级管理和资源管理两部分详细阐述了在嵌入式实时操作系统上实现优先级天花板协议的方法,并对其失效情况做出了说明,最后给出了基于C/OS-Ⅱ的优先级天花板协议的测试原理。In order to solve deadlock and priority inversion of embedded real-time operating system （RTOS）, priority ceiling protocol is studied. Through analyzing the schedule and resource allocation principle of priority ceiling protocol, the method to realize the priority ceiling protocol on embedded RTOS is proposed from the two parts of task priority management and resource management. Then the invalidation condition of priority ceiling protocol is illustrated. Finally test principle of priority ceiling protocol based on μ/OS-II is presented.

关 键 词：嵌入式实时操作系统 优先级继承 优先级天花板协议 优先级管理 资源管理 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]