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/*****************************************************************************
* Copyright 2013 - 2015 Yichao Yu <yyc1992@gmail.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation; either version 2.1 of the *
* License, or (at your option) version 3, or any later version accepted *
* by the membership of KDE e.V. (or its successor approved by the *
* membership of KDE e.V.), which shall act as a proxy defined in *
* Section 6 of version 3 of the license. *
* *
* 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library. If not, *
* see <http://www.gnu.org/licenses/>. *
*****************************************************************************/
#include "timer.h"
#include "thread.h"
#include <chrono>
#include <vector>
namespace QtCurve {
QTC_EXPORT uint64_t
getTime()
{
using namespace std::chrono;
return time_point_cast<nanoseconds>(high_resolution_clock::now())
.time_since_epoch().count();
}
QTC_EXPORT uint64_t
getElapse(uint64_t prev)
{
return getTime() - prev;
}
static ThreadLocal<std::vector<uint64_t> > tics_list;
QTC_EXPORT void
tic()
{
tics_list->push_back(0);
auto &back = tics_list->back();
back = getTime();
}
QTC_EXPORT uint64_t
toc()
{
uint64_t cur_time = getTime();
if (!tics_list->size()) {
return 0;
}
uint64_t old_time = tics_list->back();
tics_list->pop_back();
return cur_time - old_time;
}
}
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