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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 QEVENTDISPATCHER_UNIX_P_H
#define QEVENTDISPATCHER_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 "QtCore/qabstracteventdispatcher.h"
#include "QtCore/qlist.h"
#include "private/qabstracteventdispatcher_p.h"
#include "private/qcore_unix_p.h"
#include "QtCore/qvarlengtharray.h"
#include "QtCore/qhash.h"
#include "private/qtimerinfo_unix_p.h"
QT_BEGIN_NAMESPACE
class QEventDispatcherUNIXPrivate;
struct Q_CORE_EXPORT QSocketNotifierSetUNIX final
{
inline QSocketNotifierSetUNIX() noexcept;
inline bool isEmpty() const noexcept;
inline short events() const noexcept;
QSocketNotifier *notifiers[3];
};
Q_DECLARE_TYPEINFO(QSocketNotifierSetUNIX, Q_PRIMITIVE_TYPE);
struct QThreadPipe
{
QThreadPipe();
~QThreadPipe();
bool init();
pollfd prepare() const;
void wakeUp();
int check(const pollfd &pfd);
// note for eventfd(7) support:
// fds[0] stores the eventfd, fds[1] is unused
int fds[2] = { -1, -1 };
QAtomicInt wakeUps;
#if defined(Q_OS_VXWORKS)
static constexpr int len_name = 20;
char name[len_name] = {};
#endif
};
class Q_CORE_EXPORT QEventDispatcherUNIX : public QAbstractEventDispatcherV2
{
Q_OBJECT
Q_DECLARE_PRIVATE(QEventDispatcherUNIX)
public:
explicit QEventDispatcherUNIX(QObject *parent = nullptr);
~QEventDispatcherUNIX();
bool processEvents(QEventLoop::ProcessEventsFlags flags) override;
void registerSocketNotifier(QSocketNotifier *notifier) final;
void unregisterSocketNotifier(QSocketNotifier *notifier) final;
void registerTimer(Qt::TimerId timerId, Duration interval, Qt::TimerType timerType,
QObject *object) override final;
bool unregisterTimer(Qt::TimerId timerId) override final;
bool unregisterTimers(QObject *object) override final;
QList<TimerInfoV2> timersForObject(QObject *object) const override final;
Duration remainingTime(Qt::TimerId timerId) const override final;
void wakeUp() override;
void interrupt() final;
protected:
QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObject *parent = nullptr);
};
class Q_CORE_EXPORT QEventDispatcherUNIXPrivate : public QAbstractEventDispatcherPrivate
{
Q_DECLARE_PUBLIC(QEventDispatcherUNIX)
public:
QEventDispatcherUNIXPrivate();
~QEventDispatcherUNIXPrivate();
int activateTimers();
void markPendingSocketNotifiers();
int activateSocketNotifiers();
void setSocketNotifierPending(QSocketNotifier *notifier);
QThreadPipe threadPipe;
QList<pollfd> pollfds;
QHash<int, QSocketNotifierSetUNIX> socketNotifiers;
QList<QSocketNotifier *> pendingNotifiers;
QTimerInfoList timerList;
QAtomicInt interrupt; // bool
};
inline QSocketNotifierSetUNIX::QSocketNotifierSetUNIX() noexcept
{
notifiers[0] = nullptr;
notifiers[1] = nullptr;
notifiers[2] = nullptr;
}
inline bool QSocketNotifierSetUNIX::isEmpty() const noexcept
{
return !notifiers[0] && !notifiers[1] && !notifiers[2];
}
inline short QSocketNotifierSetUNIX::events() const noexcept
{
short result = 0;
if (notifiers[0])
result |= POLLIN;
if (notifiers[1])
result |= POLLOUT;
if (notifiers[2])
result |= POLLPRI;
return result;
}
QT_END_NAMESPACE
#endif // QEVENTDISPATCHER_UNIX_P_H
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