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/*
* CStopWatch.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#ifdef __FreeBSD__
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#define TO_MS_DIVISOR (1000)
#else
#include <ctime>
#define TO_MS_DIVISOR (CLOCKS_PER_SEC / 1000)
#endif
VCMI_LIB_NAMESPACE_BEGIN
class CStopWatch
{
si64 start, last, mem;
public:
CStopWatch()
: start(clock())
{
last=clock();
mem=0;
}
si64 getDiff() //get diff in milliseconds
{
si64 ret = clock() - last;
last = clock();
return ret / TO_MS_DIVISOR;
}
void update()
{
last=clock();
}
void remember()
{
mem=clock();
}
si64 memDif()
{
return (clock()-mem) / TO_MS_DIVISOR;
}
private:
si64 clock()
{
#ifdef __FreeBSD__ // TODO: enable also for Apple?
struct rusage usage;
getrusage(RUSAGE_SELF, &usage);
return static_cast<si64>(usage.ru_utime.tv_sec + usage.ru_stime.tv_sec) * 1000000 + usage.ru_utime.tv_usec + usage.ru_stime.tv_usec;
#else
return std::clock();
#endif
}
};
VCMI_LIB_NAMESPACE_END
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