參考資料: http://blog.yam.com/swwuyam/article/11459124
在 windows 下的 同步物件共有三個 critical section, mutex, semaphore
critical section: http://msdn.microsoft.com/en-us/library ... 85%29.aspx
mutex: http://msdn.microsoft.com/en-us/library ... 85%29.aspx
semaphore: http://msdn.microsoft.com/en-us/library ... 85%29.aspx