fix: Do not leak LinkManager in FairRun

FairRun's constructor used to allocate a FairLinkManager,
but the destructor did not deallocate it.

Switch it over to a valued member so that default behaviour
allocates and deallocates it.

Author: ChristianTackeGSI

fairroot/base/steer/FairLinkManager.cxx

@@ -1,3 +1,10 @@
+/********************************************************************************
+ * Copyright (C) 2014-2023 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
 // -------------------------------------------------------------------------
 // -----                   FairLinkManager source file                 -----
 // -----            Created 05/06/14  by T.Stockmanns                  -----

fairroot/base/steer/FairLinkManager.h

@@ -1,3 +1,10 @@
+/********************************************************************************
+ * Copyright (C) 2014-2023 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH  *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
 #ifndef FAIR_LINK_MANAGER_H
 #define FAIR_LINK_MANAGER_H
 

fairroot/base/steer/FairRun.cxx

@@ -13,7 +13,6 @@
 #include "FairRun.h"
 
 #include "FairFileHeader.h"     // for FairFileHeader
-#include "FairLinkManager.h"    // for FairLinkManager
 #include "FairLogger.h"         // for FairLogger, MESSAGE_ORIGIN
 #include "FairRootFileSink.h"   // only temporary, should be removed after the move to FairSink is finished
 #include "FairRootManager.h"    // for FairRootManager
@@ -77,8 +76,6 @@ FairRun::FairRun(Bool_t isMaster)
 #endif
 
     fRootManager = FairRootManager::Instance();
-
-    new FairLinkManager();
 }
 
 FairRun::~FairRun()

fairroot/base/steer/FairRun.h

@@ -10,6 +10,7 @@
 
 #include "FairAlignmentHandler.h"
 #include "FairEventHeader.h"
+#include "FairLinkManager.h"
 #include "FairSink.h"
 #include "FairSource.h"
 
@@ -209,6 +210,8 @@ class FairRun : public TNamed
     /** Number of Tasks added*/
     Int_t fNTasks;
 
+    FairLinkManager fLinkManager{};   //!
+
   protected:
     /** static pointer to this run*/
     static TMCThreadLocal FairRun* fRunInstance;