[arcane,std] Dans le lecteur VtkLegacy, rend persistantes les variabl…

…es lues dans le fichier de maillage.

Sans cela, ces variables sont détruites lorsque le lecteur est détruit.
Elles ne peuvent donc plus être utilisées.

arcane/src/arcane/std/VtkMeshIOService.cc

@@ -1,11 +1,11 @@
 // -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
 //-----------------------------------------------------------------------------
-// Copyright 2000-2023 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
+// Copyright 2000-2024 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
 // See the top-level COPYRIGHT file for details.
 // SPDX-License-Identifier: Apache-2.0
 //-----------------------------------------------------------------------------
 /*---------------------------------------------------------------------------*/
-/* VtkMeshIOService.cc                                         (C) 2000-2023 */
+/* VtkMeshIOService.cc                                         (C) 2000-2024 */
 /*                                                                           */
 /* Lecture/Ecriture d'un maillage au format Vtk historique (legacy).         */
 /*---------------------------------------------------------------------------*/
@@ -22,29 +22,31 @@
 #include "arcane/utils/StdHeader.h"
 #include "arcane/utils/String.h"
 #include "arcane/utils/ValueConvert.h"
-
 #include "arcane/utils/Real3.h"
 
-#include "arcane/BasicService.h"
-#include "arcane/FactoryService.h"
-#include "arcane/ICaseMeshReader.h"
-#include "arcane/IItemFamily.h"
-#include "arcane/IPrimaryMesh.h"
-#include "arcane/IMeshBuilder.h"
-#include "arcane/IMeshReader.h"
-#include "arcane/IMeshUtilities.h"
-#include "arcane/IMeshWriter.h"
-#include "arcane/IParallelMng.h"
-#include "arcane/IVariableAccessor.h"
-#include "arcane/IXmlDocumentHolder.h"
-#include "arcane/Item.h"
-#include "arcane/ItemEnumerator.h"
-#include "arcane/VariableTypes.h"
-#include "arcane/XmlNode.h"
-#include "arcane/XmlNodeList.h"
+#include "arcane/core/BasicService.h"
+#include "arcane/core/FactoryService.h"
+#include "arcane/core/ICaseMeshReader.h"
+#include "arcane/core/IItemFamily.h"
+#include "arcane/core/IPrimaryMesh.h"
+#include "arcane/core/IMeshBuilder.h"
+#include "arcane/core/IMeshReader.h"
+#include "arcane/core/IMeshUtilities.h"
+#include "arcane/core/IMeshWriter.h"
+#include "arcane/core/IParallelMng.h"
+#include "arcane/core/IVariableAccessor.h"
+#include "arcane/core/IXmlDocumentHolder.h"
+#include "arcane/core/Item.h"
+#include "arcane/core/ItemEnumerator.h"
+#include "arcane/core/IVariableMng.h"
+#include "arcane/core/VariableTypes.h"
+#include "arcane/core/XmlNode.h"
+#include "arcane/core/XmlNodeList.h"
+#include "arcane/core/UnstructuredMeshAllocateBuildInfo.h"
+
+#include "arcane/core/internal/IVariableMngInternal.h"
 
 #include "arcane/std/internal/VtkCellTypes.h"
-#include "arcane/core/UnstructuredMeshAllocateBuildInfo.h"
 
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
@@ -105,7 +107,6 @@ class VtkMeshIOService
   explicit VtkMeshIOService(ITraceMng* tm)
   : TraceAccessor(tm)
   {}
-  ~VtkMeshIOService();
 
  public:
 
@@ -159,11 +160,6 @@ class VtkMeshIOService
                       const String& dir_name, bool use_internal_partition);
   bool _readMetadata(IMesh* mesh, VtkFile& vtk_file);
 
- private:
-
-  //! Table des variables crées localement par lecture du maillage
-  UniqueArray<VariableCellReal*> m_variables;
-
  private:
 };
 
@@ -583,21 +579,6 @@ isEqualString(const String& current_value, const String& expected_value)
 /*---------------------------------------------------------------------------*/
 /*---------------------------------------------------------------------------*/
 
-VtkMeshIOService::
-~VtkMeshIOService()
-{
-  const Integer size = m_variables.size();
-  for (Integer i = 0; i < size; ++i) {
-    delete m_variables[i];
-  }
-}
-
-/*---------------------------------------------------------------------------*/
-/*---------------------------------------------------------------------------*/
-
-/*---------------------------------------------------------------------------*/
-/*---------------------------------------------------------------------------*/
-
 /*!
  * \brief Permet de débuter la lecture d'un fichier vtk.
  *
@@ -1474,6 +1455,8 @@ _readData(IMesh* mesh, VtkFile& vtk_file, bool use_internal_partition,
   // groupe
 
   IParallelMng* pm = mesh->parallelMng();
+  IVariableMng* variable_mng = mesh->variableMng();
+
   Int32 sid = pm->commRank();
 
   // Si pas de données, retourne immédiatement.
@@ -1698,7 +1681,7 @@ _readData(IMesh* mesh, VtkFile& vtk_file, bool use_internal_partition,
           String name = xnode.attrValue("name");
           info() << "Building variable: " << name;
           VariableCellReal* var = new VariableCellReal(VariableBuildInfo(mesh, name));
-          m_variables.add(var);
+          variable_mng->_internalApi()->addAutoDestroyVariable(var);
         }
       }
 
@@ -1764,7 +1747,7 @@ _readCellVariable(IMesh* mesh, VtkFile& vtk_file, const String& var_name, Intege
   //TODO Faire la conversion uniqueId() vers localId() correcte
   info() << "Reading values for variable: " << var_name << " n=" << nb_cell;
   auto* var = new VariableCellReal(VariableBuildInfo(mesh, var_name));
-  m_variables.add(var);
+  mesh->variableMng()->_internalApi()->addAutoDestroyVariable(var);
   RealArrayView values(var->asArray());
   for (Integer i = 0; i < nb_cell; ++i) {
     Real v = vtk_file.getDouble();