Custom streamer for std::vector<o2::tpc::PadFlags>

Author: ktf

DataFormats/Detectors/TPC/CMakeLists.txt

@@ -40,6 +40,7 @@ o2_add_library(
 
 o2_target_root_dictionary(
   DataFormatsTPC
+  EXTRA_PATCH src/VectorPadflagsCustomStreamer.cxx
   HEADERS include/DataFormatsTPC/ClusterGroupAttribute.h
           include/DataFormatsTPC/ClusterNative.h
           include/DataFormatsTPC/ClusterNativeHelper.h

DataFormats/Detectors/TPC/src/DataFormatsTPCLinkDef.h

@@ -22,13 +22,15 @@
 #pragma link C++ class o2::tpc::ClusterHardwareContainerFixedSize < 8192> + ;
 #pragma link C++ class o2::tpc::ClusterNativeContainer + ;
 #pragma link C++ class o2::tpc::Digit + ;
+#pragma link C++ enum o2::tpc::PadFlags +;                // enum itself
 #pragma link C++ class o2::tpc::ZeroSuppressedContainer8kb + ;
 #pragma link C++ class std::vector < o2::tpc::ClusterNative> + ;
 #pragma link C++ class std::vector < o2::tpc::ClusterNativeContainer> + ;
 #pragma link C++ class std::vector < o2::tpc::ClusterHardware> + ;
 #pragma link C++ class std::vector < o2::tpc::ClusterHardwareContainerFixedSize < 8192>> + ;
 #pragma link C++ class std::vector < o2::tpc::ClusterHardwareContainer8kb> + ;
 #pragma link C++ class std::vector < o2::tpc::Digit> + ;
+#pragma link C++ class std::vector < o2::tpc::PadFlags> + ;
 #pragma link C++ class std::vector < o2::tpc::ZeroSuppressedContainer8kb> + ;
 #pragma link C++ class o2::tpc::TrackTPC + ;
 #pragma link C++ class o2::tpc::LaserTrack + ;
@@ -53,8 +55,7 @@
 #pragma link C++ class o2::tpc::TrackCuts + ;
 #pragma link C++ class o2::tpc::KrCluster + ;
 #pragma link C++ class std::vector < o2::tpc::KrCluster> + ;
-#pragma link C++ class o2::tpc::LtrCalibData + ;
-#pragma link C++ class std::vector < o2::tpc::LtrCalibData> + ;
+#pragma link C++ class o2::tpc::LtrCalibData + ; #pragma link C++ class std::vector < o2::tpc::LtrCalibData> + ;
 #pragma link C++ class o2::tpc::VDriftCorrFact + ;
 #pragma link C++ class std::vector < o2::tpc::VDriftCorrFact> + ;
 #pragma link C++ class o2::tpc::CalibdEdxCorrection + ;

DataFormats/Detectors/TPC/src/VectorPadflagsCustomStreamer.cxx

@@ -0,0 +1,52 @@
+// Copyright 2019-2025 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.
+
+using std::vector;
+
+void VectorPadFlagsStreamer(TBuffer& R__b, void* objp)
+{
+  std::vector<o2::tpc::PadFlags>* obj = static_cast<std::vector<o2::tpc::PadFlags>*>(objp);
+  if (R__b.IsReading()) {
+    std::vector<int> R__stl;
+    R__stl.clear();
+    int R__n;
+    R__b >> R__n;
+    R__stl.reserve(R__n);
+    for (int R__i = 0; R__i < R__n; R__i++) {
+      Int_t readtemp;
+      R__b >> readtemp;
+      R__stl.push_back(readtemp);
+    }
+    auto data = reinterpret_cast<unsigned short*>(R__stl.data());
+    for (int i = 0; i < R__n; ++i) {
+      obj->push_back(static_cast<o2::tpc::PadFlags>(data[i]));
+    }
+  } else {
+    // We always save things with the old format.
+    R__b << (int)obj->size() / 2;
+    for (size_t i = 0; i < obj->size(); i++) {
+      R__b << (short)obj->at(i);
+    }
+  }
+}
+
+#define RootStreamerLocal(name,STREAMER)                                 \
+namespace ROOT {                                                         \
+   /** \cond HIDDEN_SYMBOLS */                                           \
+   TGenericClassInfo *GenerateInitInstanceLocal(const name*); /** \endcond */ \
+   /** \cond HIDDEN_SYMBOLS */                                           \
+   static Short_t _R__UNIQUE_(R__dummyStreamer) =                        \
+           GenerateInitInstanceLocal((name*)0x0)->SetStreamer(STREAMER);      \
+   /** \endcond */                                                       \
+   R__UseDummy(_R__UNIQUE_(R__dummyStreamer));                           \
+}
+
+RootStreamerLocal(vector<o2::tpc::PadFlags>, VectorPadFlagsStreamer);