1     /// 锁，利用临界区实现
 2     class ZLock{
 3         CRITICAL_SECTION m_CS ;
 4     public:
 5         ZLock(){
 6             ::InitializeCriticalSection(&m_CS) ;
 7         }
 8 
 9         ~ZLock(){
10             ::DeleteCriticalSection(&m_CS) ;
11         }
12 
13         void Lock()
14         {
15             ::EnterCriticalSection(&m_CS) ;
16         }
17 
18         void UnLock()
19         {
20             ::LeaveCriticalSection(&m_CS) ;
21         }
22     } ;
23 
24 
25     /// 自动锁
26     /*自动锁原理：利用类的构造函数，自动加锁，析构函数自动解锁*/
27     class ZAutoLock
28     {
29         ZLock* m_pLock ;
30     public:
31         ZAutoLock(ZLock* pLock)
32         {
33             m_pLock = pLock ;
34             m_pLock->Lock() ;
35         }
36 
37         ~ZAutoLock()
38         {
39             m_pLock->UnLock() ;
40         }
41     };