SDL进程及SDL环境通信接口分析

The Analysis of the SDL Process and the Communication Interface of SDL Environment

简单介绍了 SDL 语言产生的背景和特点 ,对 SDL 的结构、通信、信号以及 SDL 状态等基本概念做了较详细的说明。这里着重论述了 SDL进程和 SDL环境的通信机理及实现方法 ,给出了一种 SDL进程在Nucleus PL US多任务系统上运行的接口实现方法。对于利用 SDL

This paper briefly introduces the background and characteristics of SDL language, and explains the concepts of structure, communication, data, signal and states of SDL in detail. It mainly discusses the communication mechanism between the SDL process and SDL environment. At last, this paper presents a way of realizing the interface of SDL process running on the Nucleus PLUS, which is beneficial to real time communication protocol development.