timeb 的使用

// localtime_test.cpp : 定义控制台应用程序的入口点。
//
/************************************************************************/
/*
author:郑金玮
time:2014/07/08
desc:impl timeb test
*/
/************************************************************************/
#include "stdafx.h"
#include 
#include 
#include 
#include 
#include 
using namespace std;

typedef unsigned __int64 uint64;


class CTimeProcess
{
public:
	CTimeProcess(){}
	~CTimeProcess(){}
private:
	void __init(){
		LARGE_INTEGER nFreq;
		QueryPerformanceFrequency(&nFreq);
		m_millsecondsPerTick = 1000.0f / nFreq.QuadPart;
	}
public:
	uint64 gettime(){
		static bool _bIsInit = false;
		if (_bIsInit==false)	{
			__init();
			_bIsInit = true;
		}

		LARGE_INTEGER nFreq;
		QueryPerformanceCounter(&nFreq);
		return (uint64)(nFreq.QuadPart * m_millsecondsPerTick);
	}
public:
	static CTimeProcess* instance();
private:
	double m_millsecondsPerTick;
};

CTimeProcess* CTimeProcess::instance()
{
	static CTimeProcess tp;
	return &tp;
}


#define CURTIME() CTimeProcess::instance()


int _tmain(int argc, _TCHAR* argv[])
{
	uint64 _startTime = CURTIME()->gettime();

	_timeb tb;
	::_ftime(&tb);
	struct tm *t = ::localtime(&tb.time);

	char szTime[256];
	memset(szTime,0,sizeof(szTime));
	cout<<"year:"<tm_year+1900<tm_mon+1<tm_mday<tm_hour<tm_min<tm_sec<tm_wday<gettime();

	cout<<"all code execute cost "<<_endTime-_startTime<<" millsecs"<