ROFRecord.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 ALICEO2_MID_ROFRECORD_H
#define ALICEO2_MID_ROFRECORD_H
 
#include <utility>
 
#include "CommonConstants/LHCConstants.h"
#include "CommonDataFormat/InteractionRecord.h"
#include "CommonDataFormat/TimeStamp.h"
#include "Framework/Logger.h"
 
namespace o2
{
namespace mid
{
 
enum class EventType {
  Standard = 0,
  Calib = 1,
  FET = 2
};
constexpr uint32_t NEvTypes = 3;
 
struct ROFRecord {
  using Time = o2::dataformats::TimeStampWithError<float, float>;
 
  o2::InteractionRecord interactionRecord{}; //< Interaction record
  EventType eventType{EventType::Standard};  //< Event type
  size_t firstEntry{0};                      //< First associated entry
  size_t nEntries{0};                        //< Number of associated entries
 
  ROFRecord() = default;
  ROFRecord(const o2::InteractionRecord& intRecord, const EventType& evtType, size_t first, size_t nElements) : interactionRecord(intRecord), eventType(evtType), firstEntry(first), nEntries(nElements) {}
  ROFRecord(const ROFRecord& other, size_t first, size_t nElements) : interactionRecord(other.interactionRecord), eventType(other.eventType), firstEntry(first), nEntries(nElements) {}
  size_t getEndIndex() const { return firstEntry + nEntries; }
 
  //__________________________________________________________________________
  std::pair<Time, bool> getTimeMUS(const InteractionRecord& startIR, uint32_t nOrbits = 128,
                                   bool printError = false) const
  {
    auto bcDiff = interactionRecord.differenceInBC(startIR);
    float tMean = (bcDiff + 0.5) * o2::constants::lhc::LHCBunchSpacingMUS;
    float tErr = 0.5 * o2::constants::lhc::LHCBunchSpacingMUS;
    bool isInTF = bcDiff >= 0 && bcDiff < nOrbits * o2::constants::lhc::LHCMaxBunches;
    if (printError && !isInTF) {
      LOGP(alarm, "ATTENTION: wrong bunches diff. {} for current IR {} wrt 1st TF orbit {}, source:MID",
           bcDiff, interactionRecord.asString(), startIR.asString());
    }
    return std::make_pair(Time(tMean, tErr), isInTF);
  }
 
  ClassDefNV(ROFRecord, 1);
};
 
} // namespace mid
} // namespace o2
 
#endif