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/* Copyright (c) 2012 Patrick Ruoff
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#ifndef PT_TIMER_H
#define PT_TIMER_H
#ifdef WIN32 // Windows system specific
#include <windows.h>
#else // Unix based system specific
#include <sys/time.h>
#endif
// ----------------------------------------------------------------------------
// high resolution timer based on http://www.songho.ca/misc/timer/timer.html
class Timer
{
public:
Timer();
void start();
void stop();
void restart() { start(); } // for Qt compatibility
double elapsed(); // get elapsed time in ms
protected:
double startTime; // starting time in ms
double endTime; // ending time in ms
bool running;
#ifdef WIN32
LARGE_INTEGER frequency; // ticks per second
LARGE_INTEGER startCount;
LARGE_INTEGER endCount;
#else
timeval startCount;
timeval endCount;
#endif
};
#endif //PT_TIMER_H
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