基于QNX的高可用性工具的研究与实现

Research and Implementation of High Availability Toolkit Based on QNX

在实时操作系统QNX6.20下,设计了毫秒级、快速响应的高可用性工具(HAT)。它采用被动侦听和主动轮询两种模式,实时监控系统服务和用户进程,确保每个线程都能正确、可靠地工作。HAT应用于核聚变装置极向场电源控制系统中,取得了良好的效果。

This paper presents a high availability toolkit（HAT） which can respond quickly within some milliseconds based on QNX6.20 RTOS. Through passive listening and active polling, HAT monitors the system services and user processes to guarantee that any thread would run reliably and correctly. It is applied to a poloidal field power supply control system of nuclear fusion device, and achieves good effects.