qctrlsignalhandler.h

#ifndef QCTRLSIGNALHANDLER_H
#define QCTRLSIGNALHANDLER_H

#include <QObject>
#include <QScopedPointer>
#include <QLoggingCategory>

#include <functional>

#ifdef Q_OS_WIN
#include <qt_windows.h>
#else
#include <signal.h>
#endif

class QCtrlSignalHandlerPrivate;
class QCtrlSignalHandler : public QObject
{
    Q_OBJECT
    friend class QCtrlSignalHandlerPrivate;
    friend class QCtrlSignalHandlerInstance;

    Q_PROPERTY(bool autoQuitActive READ isAutoQuitActive WRITE setAutoQuitActive NOTIFY autoQuitActiveChanged)

public:
    enum CommonSignals {
#ifdef Q_OS_WIN
        SigInt = CTRL_C_EVENT,
        SigTerm = CTRL_BREAK_EVENT
#else
        SigInt = SIGINT,
        SigTerm = SIGTERM
#endif
    };

    static QCtrlSignalHandler *instance();

    bool registerForSignal(int signal);
    bool unregisterFromSignal(int signal);

    bool isAutoQuitActive() const;

public slots:
    void setAutoQuitActive(bool autoQuitActive);

signals:
    void sigInt();
    void sigTerm();

    void ctrlSignal(int signal);

    void autoQuitActiveChanged(bool autoQuitActive);

private:
    QScopedPointer<QCtrlSignalHandlerPrivate> d_ptr;

    explicit QCtrlSignalHandler();
    ~QCtrlSignalHandler();
};

Q_DECLARE_LOGGING_CATEGORY(logQCtrlSignals)

#endif // QCTRLSIGNALHANDLER_H