Store in LtrCalibData reference VDrift and creation time

shahor02 · davidrohr · commit 96b64646ea5a · 2022-07-10T13:13:02.000+02:00
diff --git a/DataFormats/Detectors/TPC/include/DataFormatsTPC/LtrCalibData.h b/DataFormats/Detectors/TPC/include/DataFormatsTPC/LtrCalibData.h
@@ -26,10 +26,12 @@ struct LtrCalibData {
   size_t processedTFs{};               ///< number of processed TFs with laser track candidates
   uint64_t firstTime{};                ///< first time stamp of processed TFs
   uint64_t lastTime{};                 ///< last time stamp of processed TFs
-  float dvCorrectionA{};               ///< drift velocity correction factor A-Side
-  float dvCorrectionC{};               ///< drift velocity correction factor C-Side
+  long creationTime{};                 ///< time of creation
+  float dvCorrectionA{};               ///< drift velocity correction factor A-Side (inverse multiplicative)
+  float dvCorrectionC{};               ///< drift velocity correction factor C-Side (inverse multiplicative)
   float dvOffsetA{};                   ///< drift velocity trigger offset A-Side
   float dvOffsetC{};                   ///< drift velocity trigger offset C-Side
+  float refVDrift{};                   ///< reference vdrift for which factor was extracted
   uint16_t nTracksA{};                 ///< number of tracks used for A-Side fit
   uint16_t nTracksC{};                 ///< number of tracks used for C-Side fit
   std::vector<uint16_t> matchedLtrIDs; ///< list of matched laser track IDs
@@ -41,6 +43,7 @@ struct LtrCalibData {
     processedTFs = 0;
     firstTime = 0;
     lastTime = 0;
+    creationTime = 0;
     dvCorrectionA = 0;
     dvCorrectionC = 0;
     dvOffsetA = 0;
@@ -51,7 +54,7 @@ struct LtrCalibData {
     matchedLtrIDs.clear();
   }
 
-  ClassDefNV(LtrCalibData, 1);
+  ClassDefNV(LtrCalibData, 2);
 };
 
 } // namespace o2::tpc
diff --git a/DataFormats/Detectors/TPC/include/DataFormatsTPC/VDriftCorrFact.h b/DataFormats/Detectors/TPC/include/DataFormatsTPC/VDriftCorrFact.h
@@ -9,12 +9,12 @@
 // granted to it by virtue of its status as an Intergovernmental Organization
 // or submit itself to any jurisdiction.
 
-/// \file LtrCalibData.h
+/// \file VDriftCorrFact.h
 /// \brief calibration data from laser track calibration
 ///
-/// This class holds the calibration output data of CalibLaserTracks
+/// This class holds the calibration output data ITS/TPC tgl difference calibration
 ///
-/// \author Jens Wiechula, Jens.Wiechula@ikf.uni-frankfurt.de
+/// \author ruben.shahoyan@cern.ch
 
 #ifndef AliceO2_TPC_VDRIFT_CORRFACT_H
 #define AliceO2_TPC_VDRIFT_CORRFACT_H
diff --git a/Detectors/TPC/calibration/src/CalibLaserTracks.cxx b/Detectors/TPC/calibration/src/CalibLaserTracks.cxx
@@ -18,6 +18,7 @@
 #include "TPCBase/ParameterElectronics.h"
 #include "TPCCalibration/CalibLaserTracks.h"
 #include "TLinearFitter.h"
+#include <chrono>
 
 using namespace o2::tpc;
 void CalibLaserTracks::fill(std::vector<TrackTPC> const& tracks)
@@ -304,7 +305,8 @@ void CalibLaserTracks::fillCalibData(LtrCalibData& calibData, const std::vector<
 {
   auto dvA = fit(pairsA);
   auto dvC = fit(pairsC);
-
+  calibData.creationTime = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+  calibData.refVDrift = mDriftV;
   calibData.dvOffsetA = dvA.x1;
   calibData.dvCorrectionA = dvA.x2;
   calibData.nTracksA = uint16_t(pairsA.size());
