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-rw-r--r--src/corelib/kernel/qelapsedtimer_win.cpp172
1 files changed, 0 insertions, 172 deletions
diff --git a/src/corelib/kernel/qelapsedtimer_win.cpp b/src/corelib/kernel/qelapsedtimer_win.cpp
deleted file mode 100644
index deeeb05921..0000000000
--- a/src/corelib/kernel/qelapsedtimer_win.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qelapsedtimer.h"
-#include "qdeadlinetimer.h"
-#include "qdeadlinetimer_p.h"
-#include <qt_windows.h>
-
-QT_BEGIN_NAMESPACE
-
-// Result of QueryPerformanceFrequency, 0 indicates that the high resolution timer is unavailable
-static quint64 counterFrequency = 0;
-
-static void resolveCounterFrequency()
-{
- static bool done = false;
- if (done)
- return;
-
- // Retrieve the number of high-resolution performance counter ticks per second
- LARGE_INTEGER frequency;
- if (!QueryPerformanceFrequency(&frequency)) {
- qFatal("QueryPerformanceFrequency failed, even though Microsoft documentation promises it wouldn't.");
- counterFrequency = 0;
- } else {
- counterFrequency = frequency.QuadPart;
- }
-
- done = true;
-}
-
-static inline qint64 ticksToNanoseconds(qint64 ticks)
-{
- if (counterFrequency > 0) {
- // QueryPerformanceCounter uses an arbitrary frequency
- qint64 seconds = ticks / counterFrequency;
- qint64 nanoSeconds = (ticks - seconds * counterFrequency) * 1000000000 / counterFrequency;
- return seconds * 1000000000 + nanoSeconds;
- }
- // GetTickCount(64) returns milliseconds
- return ticks * 1000000;
-}
-
-
-static quint64 getTickCount()
-{
- resolveCounterFrequency();
-
- // This avoids a division by zero and disables the high performance counter if it's not available
- if (counterFrequency > 0) {
- LARGE_INTEGER counter;
-
- bool ok = QueryPerformanceCounter(&counter);
- Q_ASSERT_X(ok, "QElapsedTimer::start()",
- "QueryPerformanceCounter failed, although QueryPerformanceFrequency succeeded.");
- Q_UNUSED(ok);
- return counter.QuadPart;
- }
-
- return GetTickCount64();
-}
-
-quint64 qt_msectime()
-{
- return ticksToNanoseconds(getTickCount()) / 1000000;
-}
-
-QElapsedTimer::ClockType QElapsedTimer::clockType() noexcept
-{
- resolveCounterFrequency();
-
- return counterFrequency > 0 ? PerformanceCounter : TickCounter;
-}
-
-bool QElapsedTimer::isMonotonic() noexcept
-{
- return true;
-}
-
-void QElapsedTimer::start() noexcept
-{
- t1 = getTickCount();
- t2 = 0;
-}
-
-qint64 QElapsedTimer::restart() noexcept
-{
- qint64 oldt1 = t1;
- t1 = getTickCount();
- t2 = 0;
- return ticksToNanoseconds(t1 - oldt1) / 1000000;
-}
-
-qint64 QElapsedTimer::nsecsElapsed() const noexcept
-{
- qint64 elapsed = getTickCount() - t1;
- return ticksToNanoseconds(elapsed);
-}
-
-qint64 QElapsedTimer::elapsed() const noexcept
-{
- qint64 elapsed = getTickCount() - t1;
- return ticksToNanoseconds(elapsed) / 1000000;
-}
-
-qint64 QElapsedTimer::msecsSinceReference() const noexcept
-{
- return ticksToNanoseconds(t1) / 1000000;
-}
-
-qint64 QElapsedTimer::msecsTo(const QElapsedTimer &other) const noexcept
-{
- qint64 difference = other.t1 - t1;
- return ticksToNanoseconds(difference) / 1000000;
-}
-
-qint64 QElapsedTimer::secsTo(const QElapsedTimer &other) const noexcept
-{
- return msecsTo(other) / 1000;
-}
-
-bool operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) noexcept
-{
- return (v1.t1 - v2.t1) < 0;
-}
-
-QDeadlineTimer QDeadlineTimer::current(Qt::TimerType timerType) noexcept
-{
- static_assert(!QDeadlineTimerNanosecondsInT2);
- QDeadlineTimer result;
- result.t1 = ticksToNanoseconds(getTickCount());
- result.type = timerType;
- return result;
-}
-
-QT_END_NAMESPACE