vc6线程同步

 

#include <windows.h>

#include <iostream>

using namespace std;



// HANDLE CreateThread(

// 	LPSECURITY_ATTRIBUTES lpThreadAttributes,  // pointer to security attributes

// 	DWORD dwStackSize,                         // initial thread stack size

// 	LPTHREAD_START_ROUTINE lpStartAddress,     // pointer to thread function

// 	LPVOID lpParameter,                        // argument for new thread

// 	DWORD dwCreationFlags,                     // creation flags

// 	LPDWORD lpThreadId                         // pointer to receive thread ID

// );



DWORD WINAPI ThreadProc1(

	LPVOID lpParameter   // thread data

);

DWORD WINAPI ThreadProc2(

	LPVOID lpParameter   // thread data

);



//int index=0;

int tickets=100;

HANDLE hMutex;

int main(){

	hMutex=CreateMutex(NULL,TRUE,"tickets");

	if(hMutex){

		if(ERROR_ALREADY_EXISTS == GetLastError()){

			cout<<"已经有一个实例在运行"<<endl;

			getchar();

			return 0;

		}

	}

	WaitForSingleObject(hMutex,INFINITE);

	ReleaseMutex(hMutex);

	ReleaseMutex(hMutex);

	//Thread1

	HANDLE hThread1;

	//CREATE_SUSPENDED意为创建时挂起，等待唤醒 ResumeThread()

	//0				  意为创建后立即执行

	//hThread1 = CreateThread(NULL,0,ThreadProc1,NULL,0,NULL);	

	hThread1 = CreateThread(NULL,0,ThreadProc1,NULL,CREATE_SUSPENDED ,NULL);	

	

	//Thread2

	HANDLE hThread2;

	//hThread2 = CreateThread(NULL,0,ThreadProc2,NULL,0,NULL);

	hThread2 = CreateThread(NULL,0,ThreadProc2,NULL,CREATE_SUSPENDED ,NULL);

	ResumeThread(hThread1);

	ResumeThread(hThread2);



	while(tickets>0){	//票没有卖完

		Sleep(10);

	}

	CloseHandle(hThread1);

	CloseHandle(hThread2);

	cout<<"main exit."<<endl;

	/*while(index++<1000){

		cout<<index<<"main is running"<<endl;

		Sleep(5);

	}*/

	//Sleep(10);

	getchar();

	return 0;

}

DWORD WINAPI ThreadProc1(LPVOID lpParameter){

	while(tickets>0){		

		WaitForSingleObject(hMutex,INFINITE);

		if(tickets>0){

			Sleep(5);

			cout<<"thread1 sells :"<<tickets -- <<endl;

		}

		ReleaseMutex(hMutex);

	}	

	return 0;

}



DWORD WINAPI ThreadProc2(LPVOID lpParameter){

	while(tickets>0){

		WaitForSingleObject(hMutex,INFINITE);

		if(tickets>0){

			Sleep(1);

			cout<<"thread2 sells :"<< tickets -- <<endl;

		}

		ReleaseMutex(hMutex);

	}	

	return 0;

}