Windows核心编程之线程池在回调函数和定时调用（定时器）

#include"stdafx.h"
#include<windows.h>  
#include<iostream>
using namespace std;
void CALLBACK Work(PTP_CALLBACK_INSTANCE instance,PVOID context,PTP_WORK work)
{
	int *p=static_cast<int*>(context);
	cout<<"id="<<GetCurrentThreadId()<<"  "<<*p<<endl;
	//getc(stdin);
}
void CALLBACK Timer(PTP_CALLBACK_INSTANCE instance,PVOID context,PTP_TIMER work)
{
	static UINT32 cnt= 0;
	if(++cnt>5)CloseThreadpoolTimer(work);
	int *p=static_cast<int*>(context);
	cout<<"timer="<<GetCurrentThreadId()<<"  "<<*p<<cnt<<endl;
	//getc(stdin);
}
int _tmain()  
{  
  
	INT context=0;
	PTP_WORK wo= CreateThreadpoolWork(Work,&context,NULL);
	SubmitThreadpoolWork(wo);Sleep(1);
	SubmitThreadpoolWork(wo);Sleep(1);
	SubmitThreadpoolWork(wo);Sleep(1);
	context =1;
	PTP_WORK w1= CreateThreadpoolWork(Work,&context,NULL);
	SubmitThreadpoolWork(w1);
	///WaitForThreadpoolWorkCallbacks(w1,TRUE);
	WaitForThreadpoolWorkCallbacks(w1,FALSE);


	PTP_TIMER t = CreateThreadpoolTimer(Timer,&context,NULL);
	FILETIME due;
	due.dwLowDateTime=-1;
	due.dwHighDateTime=0;
	SetThreadpoolTimer(t,&due,500,0);

	while(1)Sleep(1000);

    return 0;  
}