DigitSamplerImpl.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef O2_MCH_DEVIO_DIGITS_DIGIT_READER_IMPL_H
#define O2_MCH_DEVIO_DIGITS_DIGIT_READER_IMPL_H
 
#include <istream>
#include "DigitFileFormat.h"
#include <fmt/format.h>
#include <memory>
#include <vector>
 
namespace o2::mch
{
class Digit;
class ROFRecord;
} // namespace o2::mch
 
namespace o2::mch::io::impl
{
 
struct DigitSamplerImpl {
  virtual ~DigitSamplerImpl() = default;
  virtual void count(std::istream& in, size_t& ntfs, size_t& nrofs, size_t& ndigits) = 0;
  virtual bool read(std::istream& in,
                    std::vector<Digit>& digits,
                    std::vector<ROFRecord>& rofs) = 0;
 
  void rewind(std::istream& in);
};
 
std::unique_ptr<DigitSamplerImpl> createDigitSamplerImpl(int version);
 
} // namespace o2::mch::io::impl
 
#endif