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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QTIMERINFO_UNIX_P_H
#define QTIMERINFO_UNIX_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qplatformdefs.h" // _POSIX_MONOTONIC_CLOCK-0
#include <QtCore/private/qglobal_p.h>
// #define QTIMERINFO_DEBUG
#include "qabstracteventdispatcher.h"
#include <sys/time.h> // struct timeval
QT_BEGIN_NAMESPACE
// internal timer info
struct QTimerInfo {
int id; // - timer identifier
Qt::TimerType timerType; // - timer type
std::chrono::milliseconds interval; // - timer interval
timespec timeout; // - when to actually fire
QObject *obj; // - object to receive event
QTimerInfo **activateRef; // - ref from activateTimers
#ifdef QTIMERINFO_DEBUG
timeval expected; // when timer is expected to fire
float cumulativeError;
uint count;
#endif
};
class Q_CORE_EXPORT QTimerInfoList : public QList<QTimerInfo*>
{
// state variables used by activateTimers()
QTimerInfo *firstTimerInfo;
public:
QTimerInfoList();
timespec currentTime;
timespec updateCurrentTime();
bool timerWait(timespec &);
void timerInsert(QTimerInfo *);
qint64 timerRemainingTime(int timerId);
std::chrono::milliseconds remainingDuration(int timerId);
void registerTimer(int timerId, qint64 interval, Qt::TimerType timerType, QObject *object);
void registerTimer(int timerId, std::chrono::milliseconds interval, Qt::TimerType timerType,
QObject *object);
bool unregisterTimer(int timerId);
bool unregisterTimers(QObject *object);
QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const;
int activateTimers();
QList::const_iterator findTimerById(int timerId) const
{
auto matchesId = [timerId](const QTimerInfo *t) { return t->id == timerId; };
return std::find_if(cbegin(), cend(), matchesId);
}
};
QT_END_NAMESPACE
#endif // QTIMERINFO_UNIX_P_H
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