DirentSizeCounter.h

#ifndef DIRENTSIZECOUNTER_H
#define DIRENTSIZECOUNTER_H
 
#include "FileInfoProvider.h"
#include <QFuture>
#include <QObject>
class DirentSizeWorker : public QObject {
    Q_OBJECT
public:
    explicit DirentSizeWorker(QObject* object = nullptr) { }
    ~DirentSizeWorker();
    void depatch_sizeCount_task(const QPersistentModelIndex& index, const QString& path);
signals:
    void sizeCountFinish(QPersistentModelIndex index, qint64 size);
 
private:
    QList<QFuture<void>> results; 
};
 
class DirentSizeCounter : public QObject, public FileInfoProvider {
    Q_OBJECT
public:
    explicit DirentSizeCounter(CCIMXFileSystemModel* model, QObject* parent = nullptr);
    inline QString provide_section_name() {
        return "File Size";
    }
 
    std::pair<bool, QVariant> data(const QModelIndex& index, int role);
private slots:
    void onHandleWorkFinishJob(QPersistentModelIndex index, qint64 size);
 
private:
    DirentSizeWorker* worker; 
    /* Thus I must copy the session... */
    /* Thanks AI, I solved the persis issue */
    /* These are using in caching the already in s */
    mutable QHash<QPersistentModelIndex, qint64> cache; 
    mutable QSet<QPersistentModelIndex> requested; 
};
 
#endif // DIRENTSIZECOUNTER_H