分区内进程管理的设计与实现

为了满足新一代航空电子系统高度综合化、模块化的要求,在高安全实时操作系统中引入了分区(Partition)的概念。分区是运行于一个处理机模块上的一个或多个应用程序(或子系统),这些应用程序在时间和空间上彼此隔离,互不影响。分区由一个或多个进程组成,每个进程隶属于特定的分区,各进程之间按照一定的调度策略并发执行。依据微内核的体系结构,本文着重讨论了分区内进程管理方法,涉及进程优先级调度实现、虚中断响应、进程截止期处理和周期进程管理。

Design and Implementation of Intrapartition Process Management

In orde to satisfy Integrated Modular Avionics,partition is issued in high safe real-time o/s.Partition is one or more applications(sub-systems)running on a core mudule,which are separated in time and space and are not affected each other.A partition comprises one or more processes,which belong to sepecial partition and run concurrently according to certain scheduling capabilities.According to the architecture of microkernel,the paper introduces intrapartition process management which refers to priority based scheduling,response of pseudo interrupt,handling of process deadline and management of periodic process.