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// Copyright (C) 2021 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_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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