ROFFinder.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_ROFFINDER_H_
#define O2_MCH_ROFFINDER_H_
 
#include <cassert>
#include <cstdint>
#include <unordered_map>
#include <vector>
 
#include <gsl/span>
 
#include "DataFormatsMCH/Digit.h"
#include "MCHRawDecoder/DataDecoder.h"
#include "DataFormatsMCH/ROFRecord.h"
 
namespace o2
{
namespace mch
{
namespace raw
{
 
class ROFFinder
{
 public:
  using RawDigit = DataDecoder::RawDigit;
  using RawDigitId = size_t;
  using RawDigitIdVector = std::vector<RawDigitId>;
 
  ROFFinder(const DataDecoder::RawDigitVector& digits, uint32_t firstTForbit);
  ~ROFFinder();
 
  void process(bool dummyROFs = false);
 
  o2::InteractionRecord digitTime2IR(const RawDigit& digit);
 
  std::optional<DataDecoder::RawDigit> getOrderedDigit(int i);
  RawDigitIdVector getOrderedDigits() { return mOrderedDigits; }
  std::vector<o2::mch::ROFRecord> getROFRecords() { return mOutputROFs; }
 
  char* saveDigitsToBuffer(size_t& bufSize);
  char* saveROFRsToBuffer(size_t& bufSize);
 
  bool isRofTimeMonotonic();
  bool isDigitsTimeAligned();
  void dumpOutputDigits();
  void dumpOutputROFs();
 
 private:
  void sortDigits();
  void storeROF();
 
  const DataDecoder::RawDigitVector& mInputDigits;
  uint32_t mFirstTForbit;
 
  int mFirstIdx{-1};
  int mEntries{0};
  o2::InteractionRecord mIR;
 
  RawDigitIdVector mOrderedDigits;
  std::vector<o2::mch::ROFRecord> mOutputROFs{};
};
 
} // namespace raw
} // namespace mch
} // namespace o2
 
#endif // O2_MCH_ROFFINDERSIMPLE_H_