针对紧急通道的实时CORBA系统的改进  

Improvement of Real-Time CORBA Systems for Emergent Passages

作　　者：杨俊[1] 王骏[1] 沈卓炜[1] 汪芸[1] 

机构地区：[1]东南大学计算机科学与工程学院,教育部计算机网络与信息集成重点实验室,江苏南京210096

出　　处：《微电子学与计算机》2009年第8期62-64,67,共4页Microelectronics & Computer

基　　金：江苏省基础研究计划项目(BK2005408);航空科学基金项目(20080769004)

摘　　要：面向紧急通道的实时应用是实时CORBA系统的一类应用.目前实时CORBA规范不能完全支持这一应用需求.通过改进实时CORBA系统RTORBUS,使其支持面向紧急通道的应用.改进的RTORBUS系统支持紧急通道的切换,并提供动态调整机制以提高紧急通道的切换效率,避免了由切换导致优先级上升超过系统限制所造成的优先级倒置.仿真实验结果表明,改进后的RTORBUS系统能够达到预期的设计要求.Real-time applications for emergent passages are a class of real-time CORBA applications. Currently, the real - time CORBA specification cannot fully support application requirements. This paper makes an improvement of RTORBUS system, which complies with real-time CORBA and supports real-time applications for emergent passages. It avoids priority inversion which is caused by continuously improving of priority. The improved RTORBUS system is supportive to changing of emergent passages, and dynamically adjusting for changing efficiently. Simulation results show that the improved RTORBUS system is in accord with desired requirements.

关 键 词：实时CORBA 紧急通道 任务调度 优先级倒置 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]