Pthread的相关资料
最近在看一些framework层的c++代码。会遇到AutoMutex，浏览了一下其源码，知道是pthread,就先把pthread的相关知识收集，方便以后学习它：
https://computing.llnl.gov/tutorials/pthreads/#PthreadsAPI
http://linux.sheup.com/linux/linux5115.htm
http://blogold.chinaunix.net/u3/111328/showart_2526774.html
