multithread.cpp

孙鑫老师主讲的VC++深入详解的一些实例程序

#include <windows.h>
#include <iostream.h>

DWORD WINAPI Fun1Proc(
  LPVOID lpParameter   // thread data
);

DWORD WINAPI Fun2Proc(
  LPVOID lpParameter   // thread data
);
int index=0;
int tickets=100;
HANDLE hMutex;
void main()
{
	HANDLE hThread1;
	HANDLE hThread2;
	hThread1=CreateThread(NULL,0,Fun1Proc,NULL,0,NULL);
	hThread2=CreateThread(NULL,0,Fun2Proc,NULL,0,NULL);
	CloseHandle(hThread1);
	CloseHandle(hThread2);
	/*while(index++<1000)
		cout<<"main thread is running"<<endl;*/
	//hMutex=CreateMutex(NULL,TRUE,NULL);
	hMutex=CreateMutex(NULL,TRUE,"tickets");
	if(hMutex)
	{
		if(ERROR_ALREADY_EXISTS==GetLastError())
		{
			cout<<"only instance can run!"<<endl;
			return;
		}
	}
	WaitForSingleObject(hMutex,INFINITE);
	ReleaseMutex(hMutex);
	ReleaseMutex(hMutex);
	Sleep(4000);
//	Sleep(10);
}

DWORD WINAPI Fun1Proc(
  LPVOID lpParameter   // thread data
)
{
	/*while(index++<1000)
		cout<<"thread1 is running"<<endl;*/
	
	/*while(TRUE)
	{
		//ReleaseMutex(hMutex);
		WaitForSingleObject(hMutex,INFINITE);
		if(tickets>0)
		{
			Sleep(1);
			cout<<"thread1 sell ticket : "<<tickets--<<endl;
		}
		else
			break;
		ReleaseMutex(hMutex);
	}*/

	WaitForSingleObject(hMutex,INFINITE);
	cout<<"thread1 is running"<<endl;
	return 0;
}

DWORD WINAPI Fun2Proc(
  LPVOID lpParameter   // thread data
)
{
	
	/*while(TRUE)
	{
		//ReleaseMutex(hMutex);
		WaitForSingleObject(hMutex,INFINITE);
		if(tickets>0)
		{
			Sleep(1);
			cout<<"thread2 sell ticket : "<<tickets--<<endl;
		}
		else
			break;
		ReleaseMutex(hMutex);
	}*/
	WaitForSingleObject(hMutex,INFINITE);
	cout<<"thread2 is running"<<endl;
	return 0;
}