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106 lines
2.8 KiB
C++
106 lines
2.8 KiB
C++
/* Copyright (C) 2005-2011, Thorvald Natvig <thorvald@natvig.com>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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- Neither the name of the Mumble Developers nor the names of its
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contributors may be used to endorse or promote products derived from this
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software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "murmur_pch.h"
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#include "Timer.h"
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Timer::Timer(bool start) {
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uiStart = start ? now() : 0;
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}
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quint64 Timer::elapsed() const {
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Q_ASSERT(uiStart != 0);
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return now() - uiStart;
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}
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bool Timer::isElapsed(quint64 us) {
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Q_ASSERT(uiStart != 0);
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if (elapsed() > us) {
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uiStart += us;
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return true;
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}
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return false;
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}
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quint64 Timer::restart() {
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quint64 n = now();
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quint64 e = n - uiStart;
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uiStart = n;
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return e;
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}
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bool Timer::isStarted() const {
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return uiStart != 0;
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}
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bool Timer::operator<(const Timer &other) const {
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return uiStart > other.uiStart;
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}
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bool Timer::operator>(const Timer &other) const {
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return uiStart < other.uiStart;
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}
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#if defined(Q_OS_WIN)
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#include <windows.h>
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quint64 Timer::now() {
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static double scale = 0;
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if (scale == 0) {
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LARGE_INTEGER freq;
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QueryPerformanceFrequency(&freq);
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scale = 1000000. / freq.QuadPart;
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}
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LARGE_INTEGER li;
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QueryPerformanceCounter(&li);
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quint64 e = li.QuadPart;
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return static_cast<quint64>(e * scale);
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}
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#elif defined(Q_OS_UNIX)
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#include <sys/time.h>
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quint64 Timer::now() {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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quint64 e= tv.tv_sec * 1000000LL;
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e += tv.tv_usec;
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return e;
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}
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#else
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quint64 Timer::now() {
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static QTime ticker;
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quint64 elapsed = ticker.elapsed();
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return elapsed * 1000LL;
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}
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#endif
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