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/*
This file is part of memview, a real-time memory trace visualization
application.
Copyright (C) 2013 Andrew Clinton
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef StopWatch_H
#define StopWatch_H
#include <stdio.h>
#include <time.h>
class StopWatch {
public:
StopWatch(bool print = true) : myPrint(print) { start(); }
~StopWatch()
{
if (myPrint)
fprintf(stderr, "%f\n", lap());
}
void start()
{
myStart = myLap = time();
}
double lap()
{
double cur = time();
double val = cur - myLap;
myLap = cur;
return val;
}
double elapsed() const
{
return time()-myStart;
}
private:
double time() const
{
timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
return ts.tv_sec + (1e-9 * (double)ts.tv_nsec);
}
private:
double myStart;
double myLap;
bool myPrint;
};
#endif
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