标签：blog http io ar os sp art log bs
http://blog.csdn.net/lxmky/article/details/7669296
http://www.cnblogs.com/4tian/archive/2012/08/08/2624353.html
Linux下实现定时器Timer的几种方法
原文地址：http://www.cnblogs.com/jingzhishen/p/4112104.html
