摘要： 首先讨论了现行的CORBA中实时性应用的缺陷。为了解决这些缺陷，必须对CORBA进行改进，主要讨论对ORB中的任务调度进行改进。在比较了几种静态调度策略(基于速率的策略RMT)和动态调度策略(最早期限策略EDF, 最少松弛度策略MLF)的优缺点的基础上，提出了一种动、静态相结合的策略：最重要的优先策略(MIF)。最后用IDL语言定义了ORB中任务调度服务对象与应用的接口，并给出了执行过程。

关键词: ORB, CORBA, 实时, 调度

Abstract: First, we propose some disadvantage of current CORBA on real-time application. In order to solve these problems, we must improve CORBA. In this paper, we discuss the real-time scheduling in ORB. After comparing some static scheduling strategies (RMT), run-time scheduling strategies (EDF, MLF), and their advantages, disadvantages, we propose a hybrid strategy (MIF). At last, we define the IDL interface of scheduling server between ORB and application, and give the executive steps.

中图分类号: 

• TP311.5