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;

}