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/* Copyright (C) 2014 J.F.Dockes
* 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) 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
// Measure and display time intervals.
#include "chrono.h"
#include <chrono>
using namespace std;
Chrono::TimePoint Chrono::o_now;
void Chrono::refnow()
{
o_now = chrono::steady_clock::now();
}
Chrono::Chrono()
: m_orig(chrono::steady_clock::now())
{
}
int64_t Chrono::restart()
{
auto nnow = chrono::steady_clock::now();
auto ms =
chrono::duration_cast<chrono::milliseconds>(nnow - m_orig);
m_orig = nnow;
return ms.count();
}
int64_t Chrono::urestart()
{
auto nnow = chrono::steady_clock::now();
auto ms =
chrono::duration_cast<chrono::microseconds>(nnow - m_orig);
m_orig = nnow;
return ms.count();
}
int64_t Chrono::millis(bool frozen)
{
if (frozen) {
return chrono::duration_cast<chrono::milliseconds>
(o_now - m_orig).count();
} else {
return chrono::duration_cast<chrono::milliseconds>
(chrono::steady_clock::now() - m_orig).count();
}
}
int64_t Chrono::micros(bool frozen)
{
if (frozen) {
return chrono::duration_cast<chrono::microseconds>
(o_now - m_orig).count();
} else {
return chrono::duration_cast<chrono::microseconds>
(chrono::steady_clock::now() - m_orig).count();
}
}
int64_t Chrono::nanos(bool frozen)
{
if (frozen) {
return chrono::duration_cast<chrono::nanoseconds>(o_now - m_orig).count();
} else {
return chrono::duration_cast<chrono::nanoseconds>
(chrono::steady_clock::now() - m_orig).count();
}
}
float Chrono::secs(bool frozen)
{
if (frozen) {
return static_cast<float>(chrono::duration_cast<chrono::seconds>(o_now - m_orig).count());
} else {
return static_cast<float>((chrono::duration_cast<chrono::seconds>
(chrono::steady_clock::now() - m_orig)).count());
}
}
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