基于QNX的启动和终止远程进程方法的研究与实现  

Research and Implementation of Starting and Canceling Remote Processes Based on QNX

作　　者：段菖蒲[1] 傅鹏[1] 

机构地区：[1]中国科学院等离子体物理研究所,安徽合肥230031

出　　处：《化工自动化及仪表》2005年第6期33-36,39,共5页Control and Instruments in Chemical Industry

基　　金：国家发展计划委员会投资项目(1998-1303)

摘　　要：针对目前EAST极向场电源控制系统操作方式所存在的问题,通过对QNX的Photon m icroGUI(微图形用户接口)的运行机理及QNX网络体系结构的分析,重点对如何利用spawn()和PtTty控件启动和终止远程进程的方法进行了研究,通过对比分析,总结出一种既简便易行,又能可靠地启动和终止远程进程的方法。By analyzing the Photon microGUI＇s operational mechanism and the networking architecture of the QNX, how to use spawn （ ） function and PtTty control to start and cancel remote processes are discussed. By comparing the two methods, an easy and reliable means is put forward ,which effectively solves the existing problem of the operation mode of the current EAST poloidal field （PF） power supply control system, offers users a simply and visual operation platform,and greatly improves the EAST PF power supply control system operation ability.

关 键 词：EAST 极向场 QNX 远程进程 伪终端 PHOTON 事件空间 事件 区域 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]