From e749ba3f4ebeb7c676f9f945b7f6dcc074a627f6 Mon Sep 17 00:00:00 2001
From: Yoann Audouin <yoann.audouin@edf.fr>
Date: Fri, 4 Nov 2022 15:20:53 +0100
Subject: [PATCH] Moving creation/deletion of temporary folder as __del__ is
 not called (Unregister removed from smeshBuilder)

---
 src/SMESH/SMESH_Gen.cxx  |  2 ++
 src/SMESH/SMESH_Mesh.cxx | 31 +++++++++++++++++++++++++------
 src/SMESH/SMESH_Mesh.hxx |  3 +++
 3 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/src/SMESH/SMESH_Gen.cxx b/src/SMESH/SMESH_Gen.cxx
index 61d4fc010..fdacc7418 100644
--- a/src/SMESH/SMESH_Gen.cxx
+++ b/src/SMESH/SMESH_Gen.cxx
@@ -289,6 +289,7 @@ bool SMESH_Gen::parallelComputeSubMeshes(
   // Pool of thread for computation
   // TODO: move when parallelMesh created
   aMesh.InitPoolThreads();
+  aMesh.CreateTmpFolder();
 
   TopAbs_ShapeEnum previousShapeType = TopAbs_VERTEX;
   int nbThreads = aMesh.GetNbThreads();
@@ -365,6 +366,7 @@ bool SMESH_Gen::parallelComputeSubMeshes(
   aMesh.wait();
 
   aMesh.GetMeshDS()->Modified();
+  aMesh.DeleteTmpFolder();
 
   return ret;
 };
diff --git a/src/SMESH/SMESH_Mesh.cxx b/src/SMESH/SMESH_Mesh.cxx
index fb373c593..6c55d1e7b 100644
--- a/src/SMESH/SMESH_Mesh.cxx
+++ b/src/SMESH/SMESH_Mesh.cxx
@@ -124,9 +124,6 @@ SMESH_Mesh::SMESH_Mesh(int               theLocalId,
   _callUp        = NULL;
   _meshDS->ShapeToMesh( PseudoShape() );
   _subMeshHolder = new SubMeshHolder;
-  // Temporary folder that will be used by parallel computation
-  tmp_folder = fs::temp_directory_path()/fs::unique_path(fs::path("SMESH_%%%%-%%%%"));
-  fs::create_directories(tmp_folder);
 
   // assure unique persistent ID
   if ( _document->NbMeshes() > 1 )
@@ -243,9 +240,6 @@ SMESH_Mesh::~SMESH_Mesh()
   if(_pool)
     DeletePoolThreads();
 #endif
-#ifndef _DEBUG_
-    fs::remove_all(tmp_folder);
-#endif
 }
 
 //================================================================================
@@ -2575,3 +2569,28 @@ void SMESH_Mesh::getAncestorsSubMeshes (const TopoDS_Shape&            theSubSha
   // sort submeshes according to stored mesh order
   SortByMeshOrder( theSubMeshes );
 }
+
+
+//=============================================================================
+/*!
+ * \brief Build folder for parallel computation
+ */
+//=============================================================================
+void SMESH_Mesh::CreateTmpFolder()
+{
+  // Temporary folder that will be used by parallel computation
+  tmp_folder = fs::temp_directory_path()/fs::unique_path(fs::path("SMESH_%%%%-%%%%"));
+  fs::create_directories(tmp_folder);
+}
+//
+//=============================================================================
+/*!
+ * \brief Delete temporary folder used for parallel computation
+ */
+//=============================================================================
+void SMESH_Mesh::DeleteTmpFolder()
+{
+#ifndef _DEBUG_
+    fs::remove_all(tmp_folder);
+#endif
+}
diff --git a/src/SMESH/SMESH_Mesh.hxx b/src/SMESH/SMESH_Mesh.hxx
index a59f7228a..ffce71417 100644
--- a/src/SMESH/SMESH_Mesh.hxx
+++ b/src/SMESH/SMESH_Mesh.hxx
@@ -418,6 +418,9 @@ class SMESH_EXPORT SMESH_Mesh
   bool IsParallel(){return _NbThreads > 0;}
 #endif
 
+  void CreateTmpFolder();
+  void DeleteTmpFolder();
+
   // Temporary folder used during parallel Computation
   boost::filesystem::path tmp_folder;
   #ifndef WIN32
-- 
2.39.2