学步园

用关键段和event使得两个子线程交替输出1,2,3,4,5

#include "Job.h"
#include <process.h>
//#include "Thread.h"
//#include "Synchronization.h"
int g_t=0;
HANDLE g_hThreadEvent1;
CRITICAL_SECTION g_csThreadCode1;
HANDLE event0;
HANDLE event1;
unsigned int __stdcall testFun1(void* pPM)
{
	int nThreadID=*(int *)pPM;
	SetEvent(g_hThreadEvent1);
	Sleep(50);
	for(int i=0;i<10;++i)
	{	
		if(nThreadID==0)
		{
			WaitForSingleObject(event0,INFINITE);
		}
		else
			WaitForSingleObject(event1,INFINITE);
		EnterCriticalSection(&g_csThreadCode1);
		if(nThreadID==0)
		{
			//阻塞当前线程 激活另外一个线程
			ResetEvent(event0);
			SetEvent(event1);
		}
		else
		{
			ResetEvent(event1);
			SetEvent(event0);
		}
		cout<<"ID:"<<nThreadID<<"---"<<"值为："<<g_t++<<endl;
		LeaveCriticalSection(&g_csThreadCode1);
	}
	return 0;
}
int main()
{
	g_hThreadEvent1=CreateEvent(NULL,FALSE,FALSE,NULL);
	event0=CreateEvent(NULL,FALSE,FALSE,NULL);
	event1=CreateEvent(NULL,FALSE,TRUE,NULL);
	InitializeCriticalSection(&g_csThreadCode1);
	HANDLE handle[2];
	int i=0;
	while(i<2)
	{
		handle[i]=(HANDLE)_beginthreadex(NULL,0,testFun1,&i,0,NULL);
		WaitForSingleObject(g_hThreadEvent1,INFINITE);
		i++;
	}
	WaitForMultipleObjects(2,handle,TRUE,INFINITE);
	CloseHandle(g_hThreadEvent1);
	DeleteCriticalSection(&g_csThreadCode1);
	for(i=0;i<2;i++)
		CloseHandle(handle[i]);
	CloseHandle(event0);
	CloseHandle(event1);
	return 0;
}

截图：