mirror of https://github.com/qt/qtbase.git
120 lines
3.8 KiB
C++
120 lines
3.8 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 QTIMERINFO_UNIX_P_H
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#define QTIMERINFO_UNIX_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtCore/private/qglobal_p.h>
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// #define QTIMERINFO_DEBUG
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#include "qabstracteventdispatcher.h"
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#include <sys/time.h> // struct timeval
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QT_BEGIN_NAMESPACE
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// internal timer info
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struct QTimerInfo {
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int id; // - timer identifier
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int interval; // - timer interval in milliseconds
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Qt::TimerType timerType; // - timer type
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timespec timeout; // - when to actually fire
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QObject *obj; // - object to receive event
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QTimerInfo **activateRef; // - ref from activateTimers
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#ifdef QTIMERINFO_DEBUG
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timeval expected; // when timer is expected to fire
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float cumulativeError;
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uint count;
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#endif
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};
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class Q_CORE_EXPORT QTimerInfoList : public QList<QTimerInfo*>
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{
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#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED)
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timespec previousTime;
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clock_t previousTicks;
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int ticksPerSecond;
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int msPerTick;
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bool timeChanged(timespec *delta);
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void timerRepair(const timespec &);
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#endif
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// state variables used by activateTimers()
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QTimerInfo *firstTimerInfo;
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public:
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QTimerInfoList();
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timespec currentTime;
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timespec updateCurrentTime();
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// must call updateCurrentTime() first!
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void repairTimersIfNeeded();
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bool timerWait(timespec &);
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void timerInsert(QTimerInfo *);
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int timerRemainingTime(int timerId);
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void registerTimer(int timerId, int interval, Qt::TimerType timerType, QObject *object);
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bool unregisterTimer(int timerId);
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bool unregisterTimers(QObject *object);
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QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const;
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int activateTimers();
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};
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QT_END_NAMESPACE
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#endif // QTIMERINFO_UNIX_P_H
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