StreamSizeCounter.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#ifndef _Belle2_StreamSizeCounter_hh
#define _Belle2_StreamSizeCounter_hh
 
#include "daq/slc/base//Writer.h"
 
namespace Belle2 {
  class StreamSizeCounter : public Writer {
 
  public:
    StreamSizeCounter() : m_count(0) {}
    virtual ~StreamSizeCounter() {}
 
  public:
    size_t write(const void*, size_t) override;
    bool available() override { return true; }
    void reset() { m_count = 0; }
    int count() const { return m_count; }
 
  private:
    size_t m_count;
 
  };
 
}
 
#endif