基于消息服务器的嵌入式实时系统进程管理研究

Study on Message-Server-Based Embedded Real-Time System Process Management

本文针对嵌入式实时系统提出基于消息服务器的进程管理机制。该机制基于端口对象理论 ,采用真正的消息驱动 ,实现了调度算法的动态可重构 ,减小了系统开销 ,提高了系统的可调度性 ,并通过 PV通信机制实现了实时分布式进程管理。文章最后给出了系统可调度的充要条件。

A message-server-based process ma nagement mechanism for embedded real-time systems is presented in this paper.Ba sed on the port object theory,the mechanism makes use of a real message-driven method.A dynamic reconfigurable scheduling algorithm is realized.The schedulabil ity of the system is improved by minimizing overhead.Distributed real-time proc ess management is implemented by the port variable communications mechanism.The necessary and sufficient conditions for the feasibility of the target system is also given.