CriticalSection关键代码区（临界区）

#include <windows.h>

#include <iostream>

using namespace std;



DWORD WINAPI MyThreadProc1(LPVOID lpParameter);		//thread data

DWORD WINAPI MyThreadProc2(LPVOID lpParameter);



int tickets=100;



CRITICAL_SECTION g_cs;



int main(){



	DWORD tid1=0,tid2=0;



	HANDLE handle1 = CreateThread(NULL,0,MyThreadProc1,NULL,CREATE_SUSPENDED ,&tid1);		

	HANDLE handle2 = CreateThread(NULL,0,MyThreadProc2,NULL,CREATE_SUSPENDED ,&tid2);



	ResumeThread(handle1);	

	ResumeThread(handle2);	



	InitializeCriticalSection(&g_cs);



	Sleep(5000);



	DeleteCriticalSection(&g_cs);



	CloseHandle(handle1);

	CloseHandle(handle2);



	cout<< "SubThread1 ID:" << hex << uppercase<< tid1 << endl;

	cout<< "SubThread2 ID:" << hex << uppercase<< tid2 << endl;

	

	system("pause");

	return 0;

}



DWORD WINAPI MyThreadProc1(LPVOID lpParameter )

{	

	while(TRUE){		

		EnterCriticalSection(&g_cs);

		if(tickets){

			cout<<"子线程1卖票:"<<tickets<<endl;

			--tickets;

			Sleep(15);			

			LeaveCriticalSection(&g_cs);

		}

		else

		{

			LeaveCriticalSection(&g_cs);

			break;

		}		

	}

	return 1;

}







DWORD WINAPI MyThreadProc2(LPVOID lpParameter)

{

	while(TRUE){

		EnterCriticalSection(&g_cs);

		if(tickets){

			cout<<"子线程2卖票:"<<tickets<<endl;

			--tickets;

			Sleep(15);

			LeaveCriticalSection(&g_cs);

		}

		else

		{

			LeaveCriticalSection(&g_cs);

			break;

		}

	}		

	return 1;

}