115 LARGE_INTEGER frequency;
116 LARGE_INTEGER timer_tick;
117 QueryPerformanceFrequency(&frequency);
118 QueryPerformanceCounter(&timer_tick);
119 return (
double)(timer_tick.QuadPart)/(
double)frequency.QuadPart;
121 timeval current_time;
122 gettimeofday (¤t_time,
nullptr);
123 return (current_time.tv_sec + 1e-6 * current_time.tv_usec);