PacNetCom.h

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/***************************************************************************
 *   Copyright (C) 2008-2010 by Matthias Nagl                              *
 *   mnagl@uni-goettingen.de                                               *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   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.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef PACNETCOM_H
#define PACNETCOM_H

#include <QObject>
#include <QTcpSocket>
#include <QMutex>
#include <QTimer>
#include <QSemaphore>
#include "pacDataTypes.h"

class PacEventSorter;
class PacEnergySpectrum;
class PacEvent;
class WaveformDataInterface;
class PacEventChunk;
class TransmittableProperty;
class TransmittablePropertyData;


class PacNetCom : public QObject
{
    Q_OBJECT
  public:
    PacNetCom(QObject *parent = 0, unsigned int nodeid = 0, float theta=0.0, float phi=0.0);
    ~PacNetCom();
    PacEventChunk * getNextEventChunk();

  public slots:
    void connectToHost(QString address, int port);
    void disconnectFromHost();
    void sendChangedProperty(QByteArray data);
    void requestNodeSetup();
    void startSynchronization();
    void startRecording();
    void stopRecording();
    void sendSpectra(bool shortterm);
    void newAngles(float theta, float phi);
    void adjustSpectrumParameters(qreal emin, qreal emax, quint32 shorttermsize, quint32 channels);
    void adjustBufferSize(quint32 newsize);

  private slots:
    void receivedData();
    void socketError();
    void socketConnected();
    void socketDisconnected();
    void update_stats();
    void stateChanged(QAbstractSocket::SocketState state);
    void noMoreData();  

  signals:
    void connected();
    void disconnected();
    void error(QString e);
    void waitingForOffsetSignal();
    void foundOffsetSignal();
    //void receivedSetupParameter(QString group, QString param, QString value);
    void spectrumData(PacEnergySpectrum *s);
    void waveformTeaser(QByteArray w);
    void updateStats(qulonglong in, qulonglong drop, qulonglong datawaiting, qulonglong dataproc);
    void state(int);
    void nodePropertyReceived(TransmittableProperty *p);
    void nodePropertyConfirmationReceived(TransmittablePropertyData *d);
    void recordingFinished();

  private:
    void processNewResults(const QByteArray data);
    void addToOnlineSpectra(qreal e);
    void sendMessage(Pac::NetMsgType type, QByteArray data = QByteArray());
    QTcpSocket *socket;
    unsigned int nodeid;
    qulonglong *eSpectrum, *eShorttermSpectrum;
    unsigned int eSpectrumChannels, *eShorttermRingBuffer, eShorttermSpectrumSize, eStSFront, eStSBack;
    qreal emin, emax, *eSpectrumX;
    float theta;
    float phi;
    bool recording;
    QString lastpluginname;
    QTimer *stattimer;
    qulonglong qin, qdrop, dataproc;
    PacEventChunk **buffer;
    QSemaphore usedbufferfield, freebufferfield;
    qlonglong buffersize, writepos, readpos;
    QTimer *noMoreDataTimer;
    static const int noMoreDataTimeout = 20; 
};

#endif