多线程 异步实现（通过事件驱动）

#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 g_hEvent;
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;*/
g_hEvent=CreateEvent(NULL,FALSE,FALSE,NULL);
HANDLE  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);
    SetEvent(g_hEvent);
Sleep(4000);
CloseHandle(g_hEvent);
// Sleep(10);
}


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


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


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