qcoreapplication_p.h

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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 QCOREAPPLICATION_P_H
#define QCOREAPPLICATION_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/qcoreapplication.h"
#if QT_CONFIG(commandlineparser)
#include "QtCore/qcommandlineoption.h"
#endif
#include "QtCore/qreadwritelock.h"
#include "QtCore/qtranslator.h"
#if QT_CONFIG(settings)
#include "QtCore/qsettings.h"
#endif
#ifndef QT_NO_QOBJECT
#include <qloggingcategory.h>
#include "private/qobject_p.h"
#include "private/qlocking_p.h"
#endif
 
#ifdef Q_OS_MACOS
#include "private/qcore_mac_p.h"
#endif
 
QT_BEGIN_NAMESPACE
 
#ifndef QT_NO_QOBJECT
Q_DECLARE_LOGGING_CATEGORY(lcDeleteLater)
#endif
 
typedef QList<QTranslator*> QTranslatorList;
 
class QAbstractEventDispatcher;
 
#ifndef QT_NO_QOBJECT
class QEvent;
#endif
 
class Q_CORE_EXPORT QCoreApplicationPrivate
#ifndef QT_NO_QOBJECT
    : public QObjectPrivate
#endif
{
    Q_DECLARE_PUBLIC(QCoreApplication)
 
public:
    enum Type {
        Tty,
        Gui
    };
 
    QCoreApplicationPrivate(int &aargc,  char **aargv);
 
    // If not inheriting from QObjectPrivate: force this class to be polymorphic
#ifdef QT_NO_QOBJECT
    virtual
#endif
    ~QCoreApplicationPrivate();
 
    void init();
 
    QString appName() const;
    QString appVersion() const;
 
#ifdef Q_OS_DARWIN
    static QString infoDictionaryStringProperty(const QString &propertyName);
#endif
 
    void initConsole();
    static void initLocale();
 
    static bool checkInstance(const char *method);
 
#if QT_CONFIG(commandlineparser)
    virtual void addQtOptions(QList<QCommandLineOption> *options);
#endif
 
#ifndef QT_NO_QOBJECT
    bool sendThroughApplicationEventFilters(QObject *, QEvent *);
    static bool sendThroughObjectEventFilters(QObject *, QEvent *);
    static bool notify_helper(QObject *, QEvent *);
    static inline void setEventSpontaneous(QEvent *e, bool spontaneous) { e->m_spont = spontaneous; }
 
    virtual void createEventDispatcher();
    virtual void eventDispatcherReady();
    static void removePostedEvent(QEvent *);
#ifdef Q_OS_WIN
    static void removePostedTimerEvent(QObject *object, int timerId);
#endif
 
    QAtomicInt quitLockRef;
    void ref();
    void deref();
    virtual bool canQuitAutomatically();
    void quitAutomatically();
    virtual void quit();
 
    static QBasicAtomicPointer<QThread> theMainThread;
    static QBasicAtomicPointer<void> theMainThreadId;
    static QThread *mainThread();
    static bool threadRequiresCoreApplication();
 
    static void sendPostedEvents(QObject *receiver, int event_type, QThreadData *data);
 
    static void checkReceiverThread(QObject *receiver);
    void cleanupThreadData();
 
    struct QPostEventListLocker
    {
        QThreadData *threadData;
        std::unique_lock<QMutex> locker;
 
        void unlock() { locker.unlock(); }
    };
    static QPostEventListLocker lockThreadPostEventList(QObject *object);
#endif // QT_NO_QOBJECT
 
    int &argc;
    char **argv;
#if defined(Q_OS_WIN)
    int origArgc;
    char **origArgv; // store unmodified arguments for QCoreApplication::arguments()
    bool consoleAllocated = false;
#endif
    void appendApplicationPathToLibraryPaths(void);
 
#ifndef QT_NO_TRANSLATION
    QTranslatorList translators;
    QReadWriteLock translateMutex;
    static bool isTranslatorInstalled(QTranslator *translator);
#endif
 
    QCoreApplicationPrivate::Type application_type;
 
    QString cachedApplicationDirPath;
    static QString *cachedApplicationFilePath;
    static void setApplicationFilePath(const QString &path);
    static inline void clearApplicationFilePath() { delete cachedApplicationFilePath; cachedApplicationFilePath = nullptr; }
 
#ifndef QT_NO_QOBJECT
    void execCleanup();
 
    bool in_exec;
    bool aboutToQuitEmitted;
    bool threadData_clean;
 
    static QAbstractEventDispatcher *eventDispatcher;
    static bool is_app_running;
    static bool is_app_closing;
#endif
 
    static bool setuidAllowed;
    static uint attribs;
    static inline bool testAttribute(uint flag) { return attribs & (1 << flag); }
 
    void processCommandLineArguments();
    QString qmljs_debug_arguments; // a string containing arguments for js/qml debugging.
    inline QString qmljsDebugArgumentsString() const { return qmljs_debug_arguments; }
 
#ifdef QT_NO_QOBJECT
    QCoreApplication *q_ptr;
#endif
};
 
QT_END_NAMESPACE
 
#endif // QCOREAPPLICATION_P_H