Deactivate unused branches to avoid memory leaks.

diff --git a/STEER/AliMCEventHandler.cxx b/STEER/AliMCEventHandler.cxx
index 5853058e79b640f8e5a20b7f45d24cb56456210e..c4934668b714ceaa6d23023e2764a91d9e27557e 100644 (file)
--- a/STEER/AliMCEventHandler.cxx
+++ b/STEER/AliMCEventHandler.cxx
@@ -317,8 +317,6 @@ void AliMCEventHandler::ResetIO()
 Bool_t AliMCEventHandler::FinishEvent()
 {
     // Reset the stack 
-    fTreeK->Clear();
-    fTreeTR->Clear();
     Stack()->Reset();
     
     return kTRUE;
@@ -358,6 +356,15 @@ void AliMCEventHandler::ReorderAndExpandTreeTR()
     fTmpTreeTR->Branch("TrackReferences", "TClonesArray", &fTrackReferences, 4000);
 
 //
+    fTreeTR->SetBranchStatus("*",      0);
+    fTreeTR->SetBranchStatus("AliRun", 1);
+    fTreeTR->SetBranchStatus("ITS",    1);
+    fTreeTR->SetBranchStatus("TPC",    1);
+    fTreeTR->SetBranchStatus("TRD",    1);
+    fTreeTR->SetBranchStatus("TOF",    1);
+    fTreeTR->SetBranchStatus("FRAME",  1);
+    fTreeTR->SetBranchStatus("MUON",   1);
+
     TClonesArray* trefs[7];
     for (Int_t i = 0; i < 7; i++) trefs[i] = 0;
     if (fTreeTR){
@@ -505,10 +512,6 @@ void AliMCEventHandler::ReorderAndExpandTreeTR()
                    }
                } // hits
            } // branches
-           for (Int_t ib = 0; ib < 7; ib++) {
-               if (trefs[ib]) trefs[ib]->Clear();
-           }
-           
        } // entries
        it++;
        fTmpTreeTR->Fill();
@@ -516,6 +519,11 @@ void AliMCEventHandler::ReorderAndExpandTreeTR()
        ifills++;
     } // tracks
     // Check
+    delete fTreeTR;
+    for (Int_t ib = 0; ib < 7; ib++) {
+       if (trefs[ib]) delete trefs[ib];
+    }
+
     if (ifills != fStack->GetNtrack()) 
        printf("AliMCEventHandler:Number of entries in TreeTR (%5d) unequal to TreeK (%5d) \n", 
               ifills, fStack->GetNtrack());