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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
/*************************************************************************
*
*
* PURPOSE:
*
*
*
* COMMENTS:
* none
*
***********************************************************************/
#include "akgtime.hh"
#include<iomanip>
using namespace akg;
BenchmarkTimer::BenchmarkTimer(const char *lText, bool highPrecision) throw()
{
text = (char*)lText;
precHigh = highPrecision;
}
BenchmarkTimer::~BenchmarkTimer() throw()
{
}
void BenchmarkTimer::reset() throw()
{
tvStart.tv_sec = 0;
tvStart.tv_usec = 0;
tvEnd.tv_sec = 0;
tvEnd.tv_usec = 0;
}
void BenchmarkTimer::start() throw()
{
gettimeofday(&tvStart,NULL);
}
void BenchmarkTimer::stop() throw()
{
gettimeofday(&tvEnd,NULL);
timeval_subtract(&tvResult,&tvEnd,&tvStart);
}
void BenchmarkTimer::setPrecision(bool high) throw()
{
precHigh = high;
}
bool BenchmarkTimer::getPrecision() const throw()
{
return precHigh;
}
int BenchmarkTimer::timeval_subtract(timeval *lResult,timeval *x,timeval *y) throw()
{
/* Perform the carry for the later subtraction by updating Y. */
if (x->tv_usec < y->tv_usec) {
int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
y->tv_usec -= 1000000 * nsec;
y->tv_sec += nsec;
}
if (x->tv_usec - y->tv_usec > 1000000) {
int nsec = (x->tv_usec - y->tv_usec) / 1000000;
y->tv_usec += 1000000 * nsec;
y->tv_sec -= nsec;
}
/* Compute the time remaining to wait.
`tv_usec' is certainly positive. */
lResult->tv_sec = x->tv_sec - y->tv_sec;
lResult->tv_usec = (x->tv_usec - y->tv_usec);
/* Return 1 if result is negative. */
return x->tv_sec < y->tv_sec;
}
std::ostream& akg::operator<<(std::ostream &os, BenchmarkTimer &bm)
{
if(bm.precHigh == true)
{
unsigned int msec = bm.tvResult.tv_sec*1000 + bm.tvResult.tv_usec / 1000;
unsigned int usec = bm.tvResult.tv_usec % 1000;
os<<bm.text<<"="<<msec<<'.'<<std::setfill('0')<<std::setw(3)<<usec<<"ms";
}
else
{
unsigned int msec = bm.tvResult.tv_usec / 1000;
unsigned int sec = bm.tvResult.tv_sec;
os<<bm.text<<"="<<sec<<'.'<<std::setfill('0')<<std::setw(3)<<msec<<"s";
}
return os;
}
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