C# EventWaitHandle

线程同步模型：

http://www.xue5.com/Developer/CSharp/755821_2.html 

http://www.cftea.com/c/2012/03/5518.asp

http://www.cnblogs.com/aarond/p/AA.html

http://www.newxing.com/Tech/DotNet/jichu/SOCKET_370.html