Impala Documentation

double Impala::Timer::Stop ( ) [inline]

Definition at line 139 of file Timer.h.

References mCpuTime, mFreq, mMode, and mStartTime.

Referenced by Impala::Util::TimePlot::Stop(), and Impala::Util::TimeStats::StopTime().

00140     {
00141         double val;
00142 #ifdef unix
00143         if (mMode == 0)
00144         {
00145             times(&mCpuTime);
00146             mUsrTime = mCpuTime.tms_utime - mUsrTime;
00147             mSysTime = mCpuTime.tms_stime - mSysTime;
00148             val = (double) (mUsrTime + mSysTime) / HZ;
00149         }
00150         else
00151         {
00152             struct timeval splitTime;
00153             gettimeofday(&splitTime, 0);
00154             val = (double) (splitTime.tv_sec - mStartTime.tv_sec);
00155             long uSec = splitTime.tv_usec - mStartTime.tv_usec;
00156             val += (double) uSec / 1000000;
00157         }
00158 #else
00159         if (mMode == 0)
00160         {
00161             mCpuTime = clock() - mCpuTime;
00162             val = (double) mCpuTime / CLOCKS_PER_SEC;
00163         }
00164         else
00165         {
00166             LARGE_INTEGER splitTimeStruct;
00167             QueryPerformanceCounter(&splitTimeStruct);
00168             LONGLONG splitTime = splitTimeStruct.HighPart;
00169             splitTime = splitTime << 32;
00170             splitTime |= splitTimeStruct.LowPart;
00171             splitTime -= mStartTime;
00172             val = (double) splitTime / mFreq;
00173         }
00174 #endif
00175         return val;
00176     }