雙線程--改變事件信號有無，協調工作

#include "stdafx.h"
#include "windows.h"

#include "stdio.h"

HANDLE g_hEvent = 0; //接收事件句柄

//子線程1

DWORD CALLBACK PrintProc(LPVOID pParam)
{
while(1)
{
WaitForSingleObject(g_hEvent,INFINITE);
ResetEvent(g_hEvent);
printf("*******************\n");
}
return 0;

}

//子線程2

DWORD CALLBACK CtrlProc(LPVOID pParam)
{
while(1)
{
Sleep(1000);
SetEvent(g_hEvent);
}
return 0;
}
int main(int argc, char* argv[])
{
g_hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);//創建事件
DWORD nID = 0;
HANDLE hThread[2] = {0};
hThread[0] = CreateThread(NULL,0,PrintProc,NULL,0,&nID);
hThread[1] = CreateThread(NULL,0,CtrlProc,NULL,0,&nID);
WaitForMultipleObjects(2,hThread,TRUE,INFINITE);
CloseHandle(hThread[0]);
CloseHandle(hThread[1]);
CloseHandle(g_hEvent);
return 0;
}