Mercurial > code
view modules/net/examples/elapsed-timer.cpp @ 512:0002b8da93dc
Net: rework a lot, going to stabilization soon
author | David Demelier <markand@malikania.fr> |
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date | Mon, 04 Apr 2016 17:34:01 +0200 |
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/* * elapsed-timer.cpp -- measure elapsed time * * Copyright (c) 2013-2015 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "elapsed-timer.h" using std::chrono::duration_cast; using std::chrono::high_resolution_clock; using std::chrono::milliseconds; ElapsedTimer::ElapsedTimer() noexcept { m_last = high_resolution_clock::now(); } void ElapsedTimer::pause() noexcept { /* * When we put the timer on pause, do not forget to set the already * elapsed time. */ (void)elapsed(); m_paused = true; } void ElapsedTimer::restart() noexcept { m_paused = false; m_last = high_resolution_clock::now(); } void ElapsedTimer::reset() noexcept { m_elapsed = 0; m_last = high_resolution_clock::now(); } unsigned ElapsedTimer::elapsed() noexcept { if (!m_paused) { m_elapsed += duration_cast<milliseconds>(high_resolution_clock::now() - m_last).count(); m_last = high_resolution_clock::now(); } return m_elapsed; }