cppcheck/lib/timer.cpp

107 lines
3.2 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2018 Cppcheck team.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "timer.h"
#include <algorithm>
#include <iostream>
#include <utility>
#include <vector>
/*
TODO:
- rename "file" to "single"
- synchronise map access in multithreaded mode or disable timing
- add unit tests
- for --showtime (needs input file)
- for Timer* classes
*/
namespace {
typedef std::pair<std::string, struct TimerResultsData> dataElementType;
bool more_second_sec(const dataElementType& lhs, const dataElementType& rhs)
{
return lhs.second.seconds() > rhs.second.seconds();
}
}
void TimerResults::ShowResults(SHOWTIME_MODES mode) const
{
if (mode == SHOWTIME_NONE)
return;
std::cout << std::endl;
TimerResultsData overallData;
std::vector<dataElementType> data(_results.begin(), _results.end());
std::sort(data.begin(), data.end(), more_second_sec);
size_t ordinal = 1; // maybe it would be nice to have an ordinal in output later!
for (std::vector<dataElementType>::const_iterator iter=data.begin() ; iter!=data.end(); ++iter) {
const double sec = iter->second.seconds();
const double secAverage = sec / (double)(iter->second.mNumberOfResults);
overallData.mClocks += iter->second.mClocks;
if ((mode != SHOWTIME_TOP5) || (ordinal<=5)) {
std::cout << iter->first << ": " << sec << "s (avg. " << secAverage << "s - " << iter->second.mNumberOfResults << " result(s))" << std::endl;
}
++ordinal;
}
const double secOverall = overallData.seconds();
std::cout << "Overall time: " << secOverall << "s" << std::endl;
}
void TimerResults::AddResults(const std::string& str, std::clock_t clocks)
{
_results[str].mClocks += clocks;
_results[str].mNumberOfResults++;
}
Timer::Timer(const std::string& str, unsigned int showtimeMode, TimerResultsIntf* timerResults)
: _str(str)
, mTimerResults(timerResults)
, _start(0)
, _showtimeMode(showtimeMode)
, mStopped(false)
{
if (showtimeMode != SHOWTIME_NONE)
_start = std::clock();
}
Timer::~Timer()
{
Stop();
}
void Timer::Stop()
{
if ((_showtimeMode != SHOWTIME_NONE) && !mStopped) {
const std::clock_t end = std::clock();
const std::clock_t diff = end - _start;
if (_showtimeMode == SHOWTIME_FILE) {
const double sec = (double)diff / CLOCKS_PER_SEC;
std::cout << _str << ": " << sec << "s" << std::endl;
} else {
if (mTimerResults)
mTimerResults->AddResults(_str, diff);
}
}
mStopped = true;
}