| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QTIMERINFO_UNIX_P_H |
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| 5 | #define QTIMERINFO_UNIX_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include "qplatformdefs.h" // _POSIX_MONOTONIC_CLOCK-0 |
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| 19 | |
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| 20 | #include <QtCore/private/qglobal_p.h> |
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| 21 | |
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| 22 | // #define QTIMERINFO_DEBUG |
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| 23 | |
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| 24 | #include "qabstracteventdispatcher.h" |
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| 25 | |
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| 26 | #include <sys/time.h> // struct timeval |
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| 27 | |
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| 28 | QT_BEGIN_NAMESPACE |
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| 29 | |
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| 30 | // internal timer info |
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| 31 | struct QTimerInfo { |
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| 32 | int id; // - timer identifier |
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| 33 | Qt::TimerType timerType; // - timer type |
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| 34 | std::chrono::milliseconds interval; // - timer interval |
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| 35 | timespec timeout; // - when to actually fire |
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| 36 | QObject *obj; // - object to receive event |
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| 37 | QTimerInfo **activateRef; // - ref from activateTimers |
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| 38 | |
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| 39 | #ifdef QTIMERINFO_DEBUG |
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| 40 | timeval expected; // when timer is expected to fire |
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| 41 | float cumulativeError; |
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| 42 | uint count; |
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| 43 | #endif |
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| 44 | }; |
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| 45 | |
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| 46 | class Q_CORE_EXPORT QTimerInfoList : public QList<QTimerInfo*> |
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| 47 | { |
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| 48 | // state variables used by activateTimers() |
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| 49 | QTimerInfo *firstTimerInfo; |
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| 50 | |
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| 51 | public: |
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| 52 | QTimerInfoList(); |
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| 53 | |
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| 54 | timespec currentTime; |
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| 55 | timespec updateCurrentTime(); |
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| 56 | |
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| 57 | bool timerWait(timespec &); |
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| 58 | void timerInsert(QTimerInfo *); |
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| 59 | |
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| 60 | qint64 timerRemainingTime(int timerId); |
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| 61 | std::chrono::milliseconds remainingDuration(int timerId); |
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| 62 | |
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| 63 | void registerTimer(int timerId, qint64 interval, Qt::TimerType timerType, QObject *object); |
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| 64 | void registerTimer(int timerId, std::chrono::milliseconds interval, Qt::TimerType timerType, |
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| 65 | QObject *object); |
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| 66 | bool unregisterTimer(int timerId); |
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| 67 | bool unregisterTimers(QObject *object); |
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| 68 | QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const; |
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| 69 | |
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| 70 | int activateTimers(); |
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| 71 | |
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| 72 | QList::const_iterator findTimerById(int timerId) const |
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| 73 | { |
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| 74 | auto matchesId = [timerId](const QTimerInfo *t) { return t->id == timerId; }; |
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| 75 | return std::find_if(first: cbegin(), last: cend(), pred: matchesId); |
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| 76 | } |
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| 77 | }; |
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| 78 | |
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| 79 | QT_END_NAMESPACE |
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| 80 | |
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| 81 | #endif // QTIMERINFO_UNIX_P_H |
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| 82 | |
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