windows系统调用 临界区机制

 #include "iostream"
 #include "windows.h"
 #include "cstring"
 using namespace std;

 static int g_nIndex=;
 const int MAX_TIMES=;
 static DWORD g_dwTimes;
 CRITICAL_SECTION g_CriticalSection;

 DWORD WINAPI IncProc(LPVOID lpParam){
     BOOL fDone=FALSE;
     while(!fDone){
         EnterCriticalSection(&g_CriticalSection);
         if(g_nIndex>=MAX_TIMES){
             fDone=TRUE;

         }
         else{
             g_dwTimes++;
             printf("The Inc count's value is%d.\n",g_dwTimes);
             g_nIndex++;
             Sleep();
         }
         LeaveCriticalSection(&g_CriticalSection);
     }

     return();
 }

 DWORD WINAPI DecProc(LPVOID lpParam){
     BOOL fDone=FALSE;
     while(!fDone){
         EnterCriticalSection(&g_CriticalSection);
         if(g_nIndex>=MAX_TIMES){
             fDone=TRUE;
         }
         else{
         g_dwTimes--;
         printf("The Dec count's value id %d.\n",g_dwTimes);
         g_nIndex++;
         Sleep();
         }
         LeaveCriticalSection(&g_CriticalSection);
     }

     return();
 }

 void main(){
     HANDLE hThread[];

     InitializeCriticalSection(&g_CriticalSection);

     hThread[]=CreateThread(
         NULL,
         ,
         IncProc,
         reinterpret_cast<LPVOID>(),
         ,
         NULL
         );
     printf("Thread0 is Created!\n");

     hThread[]=CreateThread(
         NULL,
         ,
         DecProc,
         reinterpret_cast<LPVOID>(),
         ,
         NULL
         );
     printf("Thread1 is Created!\n");

     printf("Both Threads are ready into critical section!\n");

     WaitForMultipleObjects(,hThread,TRUE,INFINITE);

     CloseHandle(hThread[]);
     CloseHandle(hThread[]);

     DeleteCriticalSection(&g_CriticalSection);

     getchar();
 }