//多线程卖车票 | 互斥对象
#include
#include

int index=0;
int tickets=100;
HANDLE hMutex;

DWORD WINAPI Thread1Proc(LPVOID lpParameter)
{
while(TRUE)//保证线程的不断执行
{
WaitForSingleObject(hMutex,INFINITE);//获取互斥对象
if(tickets>0)
{
Sleep(1);
cout<<"thread1 sells ticket:"<<tickets--<0)
{
Sleep(2);
cout<<"thread2 sells ticket:"<<tickets--<<endl;
}
else
break;
ReleaseMutex(hMutex);
}
return 0;
}

void main()
{
HANDLE hThread1;
HANDLE hThread2;
/* 注意，创新互斥器放在创建线程之前 */
hMutex=CreateMutex(NULL,TRUE,NULL);//TRUE表示调用CreateMutex的线程(即主线程)拥有了互斥对象

hThread1=CreateThread(NULL,0,Thread1Proc,NULL,0,NULL);
hThread2=CreateThread(NULL,0,Thread2Proc,NULL,0,NULL);
CloseHandle(hThread1);//关闭句柄,此时系统会递减新线程的线程内核对象的使用计数,当创建的线程
CloseHandle(hThread2);//执行完毕后,系统也会递减线程内核对象的使用计数,计数为0时,系统释放线程内核对象

ReleaseMutex(hMutex);//主线程释放互斥对象的拥有权

Sleep(10000);//要保证在卖完100张票前，主线程不能退出
}