src/globalsearch/tracker.h

/**********************************************************************
  Tracker - A thread safe duplicate checking structure FIFO

  Copyright (C) 2010-2011 by David C. Lonie

  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 version 2 of the License.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 ***********************************************************************/

#ifndef TRACKER_H
#define TRACKER_H

#include <globalsearch/structure.h>

#include <QtCore/QDebug>
#include <QtCore/QList>
#include <QtCore/QReadWriteLock>

namespace GlobalSearch {

  class Tracker : public QObject
  {
    Q_OBJECT

  public:

    Tracker(QObject *parent = 0);

    virtual ~Tracker();

    void lockForRead() {m_mutex.lockForRead();};

    void lockForWrite() {m_mutex.lockForWrite();};

    void unlock() {m_mutex.unlock();};

    QReadWriteLock* rwLock() {return &m_mutex;}

    QList<Structure*>* list() {return &m_list;};

    Structure* at(int i) {return m_list.at(i);};

    bool append(QList<Structure*> s);

    bool append(Structure* s);

    bool popFirst(Structure *&s);

    bool remove(Structure *s);

    bool contains(Structure* s);

    int size();

    void reset();

    void deleteAllStructures();

  signals:
    void newStructureAdded(GlobalSearch::Structure *s);

    void structureCountChanged(int c);

  private:
    QReadWriteLock m_mutex;
    QList<Structure*> m_list;
  };
} // end namespace GlobalSearch

#endif

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