摘要： 针对嵌入式系统开发中多线程技术可移植性较差的问题，提出一种通用的轻量级多线程模型——lwThread，采用标准C语言实现，在源程序级实现线程的切换。与同类技术相比，lwThread不但可以实现线程的优先级，还可以为每个线程动态分配独立的栈空间，同时介绍确定共享栈池大小的理论依据。实验结果表明，lwThread模型可以有效提高开发效率，并降低资源消耗。

关键词: 通用多线程, 共享栈, 嵌入式系统, 计算机体系结构

Abstract: Aiming at the lack of portability problem of multithreading technology in embedded system development, a lightweight general multithreading model called lwThread is proposed, which is developed in pure C language. The threads context switch in standard C statement is implemented. Compared with other thread models, lwThread combines the priority scheduling with dynamic stack allocation in shared-stack pool. This paper also presents a method to determine the maximum stack usage in the shared stack. Experimental results show this lwThread model can improve the efficiency of development and reduce consumption of resources.

Key words: general multithreading, shared stack, embedded system, computer architecture

中图分类号: 

• TP311.5