TimeUtil.cpp

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* ANTIKERNEL v0.1                                                                                                      *
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/**
	@file
	@author Andrew D. Zonenberg
	@brief Implementation of timing utility functions
 */
#include "TimeUtil.h"

#ifdef _WIN32
#include <windows.h>
#else
#include <time.h>
#endif

#include <cstdint>

double GetTime()
{
#ifdef _WIN32
	//FIXME this will not provide wall clock timestamps on Windows!
	uint64_t tm;
	static uint64_t freq = 0;
	QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER*>(&tm));
	double ret = tm;
	if(freq == 0)
		QueryPerformanceFrequency(reinterpret_cast<LARGE_INTEGER*>(&freq));
	return ret / freq;
#else
	timespec t;
	clock_gettime(CLOCK_REALTIME,&t);
	double d = static_cast<double>(t.tv_nsec) / 1E9f;
	d += t.tv_sec;
	return d;
#endif
}