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baldurk
768e812e45
* On windows it's strongly desired to be able to compile straight out of a clean checkout or source download. This means anyone can download the source and investigate something quickly, without having to worry about the hassle of figuring out how the project downloads 3rd party dependencies, fetching them, getting them registered in the right place. * This can't be put in a submodule as git submodules don't get downloaded by default so people new to git will get confusing compilation messages, and someone downloading the source from github directly without cloning via git won't get submodules included. * It does add some extra size to a fresh download/checkout which is unfortunate, but absolutely worth the cost. Shallow checkouts still aren't unfeasibly large, and it's only a one-off cost at clone time.
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QELAPSEDTIMER_H
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#define QELAPSEDTIMER_H
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#include <QtCore/qglobal.h>
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QT_BEGIN_NAMESPACE
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class Q_CORE_EXPORT QElapsedTimer
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{
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public:
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enum ClockType {
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SystemTime,
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MonotonicClock,
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TickCounter,
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MachAbsoluteTime,
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PerformanceCounter
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};
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Q_DECL_CONSTEXPR QElapsedTimer()
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: t1(Q_INT64_C(0x8000000000000000)),
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t2(Q_INT64_C(0x8000000000000000))
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{
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}
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static ClockType clockType() Q_DECL_NOTHROW;
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static bool isMonotonic() Q_DECL_NOTHROW;
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void start() Q_DECL_NOTHROW;
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qint64 restart() Q_DECL_NOTHROW;
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void invalidate() Q_DECL_NOTHROW;
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bool isValid() const Q_DECL_NOTHROW;
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qint64 nsecsElapsed() const Q_DECL_NOTHROW;
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qint64 elapsed() const Q_DECL_NOTHROW;
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bool hasExpired(qint64 timeout) const Q_DECL_NOTHROW;
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qint64 msecsSinceReference() const Q_DECL_NOTHROW;
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qint64 msecsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW;
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qint64 secsTo(const QElapsedTimer &other) const Q_DECL_NOTHROW;
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bool operator==(const QElapsedTimer &other) const Q_DECL_NOTHROW
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{ return t1 == other.t1 && t2 == other.t2; }
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bool operator!=(const QElapsedTimer &other) const Q_DECL_NOTHROW
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{ return !(*this == other); }
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friend bool Q_CORE_EXPORT operator<(const QElapsedTimer &v1, const QElapsedTimer &v2) Q_DECL_NOTHROW;
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private:
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qint64 t1;
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qint64 t2;
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};
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QT_END_NAMESPACE
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#endif // QELAPSEDTIMER_H
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