linux下统计时间类

class CTimeTickCount
{
public:
CTimeTickCount(int threadIndex, int id )
{
struct timezone tz;
gettimeofday(&m_tvStartTime, &tz);
// m_tmStartTime = ACE_OS::gettimeofday();
m_iThreadIndex = threadIndex;
m_iID = id;
}

~CTimeTickCount()
{
struct timezone tz;
struct timeval tv;
gettimeofday(&tv, &tz);

// ACE_Time_Value currTime = ACE_OS::gettimeofday();
long cost = (tv.tv_sec - m_tvStartTime.tv_sec) * 1000 * 1000;
cost += (tv.tv_usec - m_tvStartTime.tv_usec );

if(cost >= 100 * 1000 )
{
//NVS_DEBUG((NVS_LM_ERROR, "====thread no: %d, cost time: %dms, id: %d.",
// m_iThreadIndex, cost, m_iID));
printf( "====thread no: %d, cost time: %dms, id: %d.\n", m_iThreadIndex, cost, m_iID));
}
}

private:
struct timeval m_tvStartTime; // ACE_Time_Value m_tmStartTime; // 开始时间
int m_iThreadIndex; // 线程号
int m_iID; // 标示
};