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/*
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.
*/
#ifndef SMDIRWATCHER_H
#define SMDIRWATCHER_H
#include <QThread>
#include <QList>
#include <QVariant>
#include <QFileInfo>
#include <QQueue>
#include <QMutex>
#include <QSqlDatabase>
#include <QSqlQuery>
class SmTreeItem;
class QSemaphore;
class SmDataColletor;
class SmDirWatcher : public QThread {
Q_OBJECT
public:
enum DWEvent { None, Added, Deleted, Modified, Populate };
explicit SmDirWatcher(int numFields, QObject *parent = 0);
SmDataColletor *collector() { return mCollector; }
signals:
void dwEvent(const QString& file, int event);
void needRefresh();
public slots:
void run();
void stop();
void setDir(const QString &dir);
private:
int mFd;
int mDescr;
QString mCurrent;
SmDataColletor *mCollector;
QSemaphore *mSemFree;
QSemaphore *mSemUsed;
QQueue<QPair<QString, DWEvent> > *mDataQueue;
char *mINdata;
int mBufLen;
};
class SmDataColletor : public QThread {
Q_OBJECT
public:
explicit SmDataColletor(const int numFields, QObject *parent = 0);
void init(QSemaphore *set, QSemaphore *get, QQueue<QPair<QString, SmDirWatcher::DWEvent> > *data);
QMutex &hold() { return mHoldMx; }
public slots:
void setCheckForPresent(bool present);
void run();
void stop() { mCancel = true; }
signals:
void newData(const QList<QVariant>,int);
void population(SmTreeItem*);
void needRefresh();
private:
SmTreeItem *populate(const QString &dir);
const QList<QVariant> fileData(const QFileInfo &fi);
QString mCurrent;
QSemaphore *mSemFree;
QSemaphore *mSemUsed;
QQueue<QPair<QString, SmDirWatcher::DWEvent> > *mDataQueue;
int mMode;
const int mNumFields;
bool mCheckForPresent;
bool mCancel;
QMutex mCheckForPresentMx;
QMutex mHoldMx;
QSqlQuery *mPicPresentQ;
QSqlQuery *mMovPresentQ;
};
#endif // SMDIRWATCHER_H
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