23实验三线程的互斥.doc

学生姓名:张鹏 学号:150705040实验地点:数计学院407实验室实验课时:3学时 实验器材:计算机课程名称:计算机操作系统实验名称::线程的互斥一、实验目的1、进一步掌握windows系统环境下线程的创建与撤销。2、熟悉线程互斥API3、使用线程互斥API解决实际问题。二、实验环境及工具Windows7操作系统,VC6实验内容能正确使用临界区对象,临界区对象(CriticalSection)包括初始化临界区(InitializeCriticalSection())、进入临界区(EnterCriticalSection())、退出临界区(LeaveCriticalSection())及删除临界区(DeleteCriticalSection()),进一步理解线程的互斥。实验步骤#include""#include""#ifdef_DEBUG#definenewDEBUG_NEW#harTHIS_FILE[]=__FILE__;#endif///////////////////////////////////////////////////////////////////////////////TheoneandonlyapplicationobjectCWinApptheApp;usingnamespacestd;staticintcount=5;staticHANDLEh1;staticHANDLEh2;LPCRITICAL_SECTIONhCriticalSection;CRITICAL_SECTIONCritical;voidfunc1();voidfunc2();int_tmain(intargc,TCHAR*argv[],TCHAR*envp[]){ intnRetCode=0; DWORDdwThreadID1,dwThreadID2; hCriticalSection=&Critical; InitializeCriticalSection(hCriticalSection); h1=CreateThread((LPSECURITY_ATTRIBUTES)NULL, 0, (LPTHREAD_START_ROUTINE)func1, (LPVOID)NULL, 0,&dwThreadID1); if(h1==NULL)printf("Thread1createFail!\n"); elseprintf("ess!\n"); h2=CreateThread((LPSECURITY_ATTRIBUTES)NULL, 0, (LPTHREAD_START_ROUTINE)func2, (LPVOID)NULL, 0,&dwThreadID2); if(h2==NULL)printf("Thread2createFail!\n"); elseprintf("ess!\n"); Sleep(1000); CloseHandle(h1); CloseHandle(h2); DeleteCriticalSection(hCriticalSection); ExitThread(0); returnnRetCode;