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renderdoc/qrenderdoc/3rdparty/qt/include/QtCore/qdeadlinetimer.h
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baldurk 768e812e45 Commit binary dependencies necessary for compilation on windows
* 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.
2018-02-02 20:49:35 +00:00

198 lines
8.2 KiB
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/****************************************************************************
**
** Copyright (C) 2016 Intel Corporation.
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDEADLINETIMER_H
#define QDEADLINETIMER_H
#include <QtCore/qelapsedtimer.h>
#include <QtCore/qmetatype.h>
#include <QtCore/qnamespace.h>
#ifdef max
// un-pollute the namespace. We need std::numeric_limits::max() and std::chrono::duration::max()
# undef max
#endif
#include <limits>
#if QT_HAS_INCLUDE(<chrono>)
# include <chrono>
#endif
QT_BEGIN_NAMESPACE
class Q_CORE_EXPORT QDeadlineTimer
{
public:
enum ForeverConstant { Forever };
Q_DECL_CONSTEXPR QDeadlineTimer(Qt::TimerType type_ = Qt::CoarseTimer) Q_DECL_NOTHROW
: t1(0), t2(0), type(type_) {}
Q_DECL_CONSTEXPR QDeadlineTimer(ForeverConstant, Qt::TimerType type_ = Qt::CoarseTimer) Q_DECL_NOTHROW
: t1(std::numeric_limits<qint64>::max()), t2(0), type(type_) {}
explicit QDeadlineTimer(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
void swap(QDeadlineTimer &other) Q_DECL_NOTHROW
{ qSwap(t1, other.t1); qSwap(t2, other.t2); qSwap(type, other.type); }
Q_DECL_CONSTEXPR bool isForever() const Q_DECL_NOTHROW
{ return t1 == (std::numeric_limits<qint64>::max)(); }
bool hasExpired() const Q_DECL_NOTHROW;
Qt::TimerType timerType() const Q_DECL_NOTHROW
{ return Qt::TimerType(type & 0xff); }
void setTimerType(Qt::TimerType type);
qint64 remainingTime() const Q_DECL_NOTHROW;
qint64 remainingTimeNSecs() const Q_DECL_NOTHROW;
void setRemainingTime(qint64 msecs, Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
void setPreciseRemainingTime(qint64 secs, qint64 nsecs = 0,
Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
qint64 deadline() const Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
qint64 deadlineNSecs() const Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
void setDeadline(qint64 msecs, Qt::TimerType timerType = Qt::CoarseTimer) Q_DECL_NOTHROW;
void setPreciseDeadline(qint64 secs, qint64 nsecs = 0,
Qt::TimerType type = Qt::CoarseTimer) Q_DECL_NOTHROW;
static QDeadlineTimer addNSecs(QDeadlineTimer dt, qint64 nsecs) Q_DECL_NOTHROW Q_DECL_PURE_FUNCTION;
static QDeadlineTimer current(Qt::TimerType timerType = Qt::CoarseTimer) Q_DECL_NOTHROW;
friend bool operator==(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
{ return d1.t1 == d2.t1 && d1.t2 == d2.t2; }
friend bool operator!=(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
{ return !(d1 == d2); }
friend bool operator<(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
{ return d1.t1 < d2.t1 || (d1.t1 == d2.t1 && d1.t2 < d2.t2); }
friend bool operator<=(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
{ return d1 == d2 || d1 < d2; }
friend bool operator>(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
{ return d2 < d1; }
friend bool operator>=(QDeadlineTimer d1, QDeadlineTimer d2) Q_DECL_NOTHROW
{ return !(d1 < d2); }
friend QDeadlineTimer operator+(QDeadlineTimer dt, qint64 msecs)
{ return QDeadlineTimer::addNSecs(dt, msecs * 1000 * 1000); }
friend QDeadlineTimer operator+(qint64 msecs, QDeadlineTimer dt)
{ return dt + msecs; }
friend QDeadlineTimer operator-(QDeadlineTimer dt, qint64 msecs)
{ return dt + (-msecs); }
friend qint64 operator-(QDeadlineTimer dt1, QDeadlineTimer dt2)
{ return (dt1.deadlineNSecs() - dt2.deadlineNSecs()) / (1000 * 1000); }
QDeadlineTimer &operator+=(qint64 msecs)
{ *this = *this + msecs; return *this; }
QDeadlineTimer &operator-=(qint64 msecs)
{ *this = *this + (-msecs); return *this; }
#if QT_HAS_INCLUDE(<chrono>) || defined(Q_QDOC)
template <class Clock, class Duration>
QDeadlineTimer(std::chrono::time_point<Clock, Duration> deadline_,
Qt::TimerType type_ = Qt::CoarseTimer) : t2(0)
{ setDeadline(deadline_, type_); }
template <class Clock, class Duration>
QDeadlineTimer &operator=(std::chrono::time_point<Clock, Duration> deadline_)
{ setDeadline(deadline_); return *this; }
template <class Clock, class Duration>
void setDeadline(std::chrono::time_point<Clock, Duration> deadline_,
Qt::TimerType type_ = Qt::CoarseTimer)
{ setRemainingTime(deadline_ == deadline_.max() ? Duration::max() : deadline_ - Clock::now(), type_); }
template <class Clock, class Duration = typename Clock::duration>
std::chrono::time_point<Clock, Duration> deadline() const
{
auto val = std::chrono::nanoseconds(rawRemainingTimeNSecs()) + Clock::now();
return std::chrono::time_point_cast<Duration>(val);
}
template <class Rep, class Period>
QDeadlineTimer(std::chrono::duration<Rep, Period> remaining, Qt::TimerType type_ = Qt::CoarseTimer)
: t2(0)
{ setRemainingTime(remaining, type_); }
template <class Rep, class Period>
QDeadlineTimer &operator=(std::chrono::duration<Rep, Period> remaining)
{ setRemainingTime(remaining); return *this; }
template <class Rep, class Period>
void setRemainingTime(std::chrono::duration<Rep, Period> remaining, Qt::TimerType type_ = Qt::CoarseTimer)
{
if (remaining == remaining.max())
*this = QDeadlineTimer(Forever, type_);
else
setPreciseRemainingTime(0, std::chrono::nanoseconds(remaining).count(), type_);
}
std::chrono::nanoseconds remainingTimeAsDuration() const Q_DECL_NOTHROW
{
if (isForever())
return std::chrono::nanoseconds::max();
qint64 nsecs = rawRemainingTimeNSecs();
if (nsecs <= 0)
return std::chrono::nanoseconds::zero();
return std::chrono::nanoseconds(nsecs);
}
template <class Rep, class Period>
friend QDeadlineTimer operator+(QDeadlineTimer dt, std::chrono::duration<Rep, Period> value)
{ return QDeadlineTimer::addNSecs(dt, std::chrono::duration_cast<std::chrono::nanoseconds>(value).count()); }
template <class Rep, class Period>
friend QDeadlineTimer operator+(std::chrono::duration<Rep, Period> value, QDeadlineTimer dt)
{ return dt + value; }
template <class Rep, class Period>
friend QDeadlineTimer operator+=(QDeadlineTimer &dt, std::chrono::duration<Rep, Period> value)
{ return dt = dt + value; }
#endif
private:
qint64 t1;
unsigned t2;
unsigned type;
qint64 rawRemainingTimeNSecs() const Q_DECL_NOTHROW;
};
Q_DECLARE_SHARED(QDeadlineTimer)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QDeadlineTimer)
#endif // QDEADLINETIMER_H