ORB中实时任务调度的实现

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。

Implementation of Real Time Scheduling in ORB

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.