一个封装的信号量类，主要在ARM－Linux上应用。使用方法参考试验例程。-signal a package volume category, mainly in the ARM-Linux applications. Use reference test routines.

这是一个主线程工作线程互发信号的一个demo,里面的代码还是很值得去参考的-This is a main thread work thread cross-hair signals a demo, the code inside is still very worthwhile reference

个人编写的linux下信号编程实验源码，针对信号进行捕捉、函数处理，对于嵌入式平台下应用有一点参考价值-Written by individuals under linux programming experimental source signal for signal capture function processing, there is little reference value