Timer.c

#include "Timer.h"
#include <stdlib.h>

void CTimerReset(CTimer* ctimer) {
  #ifdef _WIN32
  QueryPerformanceCounter(&ctimer->startTime);
  #else
  gettimeofday(&ctimer->startTime, NULL);
  #endif
}

void CTimerInit(CTimer* ctimer) {
  #ifdef _WIN32
  LARGE_INTEGER freq;
  QueryPerformanceFrequency(&freq);
  ctimer->fFreq = (double)freq.QuadPart;
  #else
  gettimeofday(&ctimer->startTime, NULL);
  #endif
  CTimerReset(ctimer);
}

// Gets the most up to date time.
double CTimerGetTime(CTimer* ctimer) {
  #ifdef _WIN32
  LARGE_INTEGER endTime;
  QueryPerformanceCounter(&endTime);
  return (endTime.QuadPart - ctimer->startTime.QuadPart) / ctimer->fFreq; // as double
  #else
  struct timeval endTime;
  gettimeofday(&endTime, NULL);
  return (endTime.tv_sec - ctimer->startTime.tv_sec) + (endTime.tv_usec - ctimer->startTime.tv_usec)/1e6;
  #endif
}