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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** 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 QEVENTDISPATCHER_WASM_P_H
#define QEVENTDISPATCHER_WASM_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 "qabstracteventdispatcher.h"
#include "private/qtimerinfo_unix_p.h"
#include <QtCore/qloggingcategory.h>
#include <QtCore/qwaitcondition.h>
#include <mutex>
#include <optional>
#include <tuple>
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(lcEventDispatcher);
Q_DECLARE_LOGGING_CATEGORY(lcEventDispatcherTimers)
class Q_CORE_EXPORT QEventDispatcherWasm : public QAbstractEventDispatcher
{
Q_OBJECT
public:
QEventDispatcherWasm();
~QEventDispatcherWasm();
bool processEvents(QEventLoop::ProcessEventsFlags flags) override;
void registerSocketNotifier(QSocketNotifier *notifier) override;
void unregisterSocketNotifier(QSocketNotifier *notifier) override;
void registerTimer(int timerId, qint64 interval, Qt::TimerType timerType, QObject *object) override;
bool unregisterTimer(int timerId) override;
bool unregisterTimers(QObject *object) override;
QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const override;
int remainingTime(int timerId) override;
void interrupt() override;
void wakeUp() override;
protected:
virtual void processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags);
private:
bool isMainThreadEventDispatcher();
bool isSecondaryThreadEventDispatcher();
void handleApplicationExec();
void handleDialogExec();
void pollForNativeEvents();
bool waitForForEvents();
static void callProcessEvents(void *eventDispatcher);
void processTimers();
void updateNativeTimer();
static void callProcessTimers(void *eventDispatcher);
void setEmscriptenSocketCallbacks();
void clearEmscriptenSocketCallbacks();
static void socketError(int fd, int err, const char* msg, void *context);
static void socketOpen(int fd, void *context);
static void socketListen(int fd, void *context);
static void socketConnection(int fd, void *context);
static void socketMessage(int fd, void *context);
static void socketClose(int fd, void *context);
#if QT_CONFIG(thread)
void runOnMainThread(std::function<void(void)> fn);
#endif
static QEventDispatcherWasm *g_mainThreadEventDispatcher;
bool m_interrupted = false;
bool m_processTimers = false;
bool m_pendingProcessEvents = false;
QTimerInfoList *m_timerInfo = new QTimerInfoList();
long m_timerId = 0;
uint64_t m_timerTargetTime = 0;
#if QT_CONFIG(thread)
std::mutex m_mutex;
bool m_wakeUpCalled = false;
std::condition_variable m_moreEvents;
static QVector<QEventDispatcherWasm *> g_secondaryThreadEventDispatchers;
static std::mutex g_secondaryThreadEventDispatchersMutex;
#endif
static std::multimap<int, QSocketNotifier *> g_socketNotifiers;
};
#endif // QEVENTDISPATCHER_WASM_P_H
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