acqiristdc_converter.h

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//Copyright (C) 2011 Lutz Foucar

/**
 * @file acqiristdc_converter.h file contains the declaration of the converter
 *                              for the xtc containing acqiris tdc data.
 *
 * @author Lutz Foucar
 */

#ifndef _ACQIRISTDC_CONVERTER_H
#define _ACQIRISTDC_CONVERTER_H

#include <QtCore/QMutex>

#include "conversion_backend.h"
#include "acqiris_device.hpp"

namespace cass
{
namespace ACQIRISTDC
{
/** Acqiris Converter
 *
 * this class takes a xtc of type Id_AcqTDC and extracts the acqiris tdc
 * channels for all instruments
 *
 * @author Lutz Foucar
 */
class Converter : public ConversionBackend
{
public:
  /** create singleton if doesnt exist already */
  static ConversionBackend::shared_pointer instance();

  /** takes the xtc and copies the data to cassevent */
  void operator()(const Pds::Xtc*, CASSEvent*);

private:
  /** constructor
   *
   * sets up the pds type ids that it is responsible for
   */
  Converter();

  /** prevent copy construction */
  Converter(const Converter&);

  /** prevent assignment */
  Converter& operator=(const Converter&);

  /** the singleton container */
  static ConversionBackend::shared_pointer _instance;

  /** singleton locker for mutithreaded requests */
  static QMutex _mutex;
};
}//end namespace acqiris
}//end namespace cass

#endif