首页 > 代码库 > windows系统调用 临界区机制
windows系统调用 临界区机制
1 #include "iostream" 2 #include "windows.h" 3 #include "cstring" 4 using namespace std; 5 6 7 static int g_nIndex=0; 8 const int MAX_TIMES=10; 9 static DWORD g_dwTimes;10 CRITICAL_SECTION g_CriticalSection;11 12 DWORD WINAPI IncProc(LPVOID lpParam){13 BOOL fDone=FALSE;14 while(!fDone){15 EnterCriticalSection(&g_CriticalSection);16 if(g_nIndex>=MAX_TIMES){17 fDone=TRUE;18 19 }20 else{21 g_dwTimes++;22 printf("The Inc count‘s value is%d.\n",g_dwTimes);23 g_nIndex++;24 Sleep(10);25 }26 LeaveCriticalSection(&g_CriticalSection);27 }28 29 return(0);30 }31 32 DWORD WINAPI DecProc(LPVOID lpParam){33 BOOL fDone=FALSE;34 while(!fDone){35 EnterCriticalSection(&g_CriticalSection);36 if(g_nIndex>=MAX_TIMES){37 fDone=TRUE;38 }39 else{40 g_dwTimes--;41 printf("The Dec count‘s value id %d.\n",g_dwTimes);42 g_nIndex++;43 Sleep(10);44 }45 LeaveCriticalSection(&g_CriticalSection);46 }47 48 return(0);49 }50 51 void main(){52 HANDLE hThread[2];53 54 InitializeCriticalSection(&g_CriticalSection);55 56 hThread[0]=CreateThread(57 NULL,58 0,59 IncProc,60 reinterpret_cast<LPVOID>(2),61 0,62 NULL63 );64 printf("Thread0 is Created!\n");65 66 hThread[1]=CreateThread(67 NULL,68 0,69 DecProc,70 reinterpret_cast<LPVOID>(2),71 0,72 NULL73 );74 printf("Thread1 is Created!\n");75 76 printf("Both Threads are ready into critical section!\n");77 78 WaitForMultipleObjects(2,hThread,TRUE,INFINITE);79 80 CloseHandle(hThread[1]);81 CloseHandle(hThread[0]);82 83 DeleteCriticalSection(&g_CriticalSection);84 85 getchar();86 }
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。