太原市网站建设_网站建设公司_留言板_seo优化

1.头文件

#include "time.h"#ifndef LH_UINT64
#ifdef LH_OS_WIN32
#if defined(__GNUC__)#define LH_UINT64 unsigned long long#else#define LH_UINT64 unsigned __int64#endif
#else
#define LH_UINT64 unsigned long long
#endif
#endif#ifndef LH_MAXS
#define LH_MAXS(t) ((t)(((LH_UINT64)-1) >> ((8 - sizeof(t)) * 8 + 1)))
#endif#ifndef LH_MAXU
#define LH_MAXU(t) ((t)(((LH_UINT64)-1) >> ((8 - sizeof(t)) * 8)))
#endifclass TimeCountDown {
public:TimeCountDown(void);~TimeCountDown(void);static unsigned int GetTickCount();static bool TimeIsOver(unsigned int n32MilliSecond);};

2.实现文件

#include "TimeCountDown.h"TimeCountDown::TimeCountDown(void) {}TimeCountDown::~TimeCountDown(void) {}unsigned int TimeCountDown::GetTickCount() {struct timespec stTs;clock_gettime(CLOCK_MONOTONIC, &stTs);return (stTs.tv_sec * 1000 + stTs.tv_nsec / 1000000);
}bool TimeCountDown::TimeIsOver(unsigned int n32Tick) {unsigned int nNowTime;nNowTime = GetTickCount();if((nNowTime == n32Tick)|| ((nNowTime > n32Tick) && ((nNowTime - n32Tick) < ((LH_MAXU(unsigned int) >> 1))))|| ((nNowTime < n32Tick) && ((n32Tick - nNowTime) > ((LH_MAXU(unsigned int) >> 1))))){return true;}return false;
}

　3.用法

if (TimeCountDown::TimeIsOver(m_iSycTime + m_iSycMoveTargetSpan * 1000)) { m_iSycTime = TimeCountDown::GetTickCount(); ... };