From add9bf910bbb37c35738b01d38c7fe28b75fb8e3 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 3 Apr 2017 19:09:47 +0200
Subject: [PATCH] fix memory leak on IGES import

---
 src/Mod/Import/App/AppImportPy.cpp    | 5 +++++
 src/Mod/Import/Gui/AppImportGuiPy.cpp | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/src/Mod/Import/App/AppImportPy.cpp b/src/Mod/Import/App/AppImportPy.cpp
index 5f189007fe67..7c08838c8fbc 100644
--- a/src/Mod/Import/App/AppImportPy.cpp
+++ b/src/Mod/Import/App/AppImportPy.cpp
@@ -41,9 +41,11 @@
 # include <IGESControl_Controller.hxx>
 # include <IGESData_GlobalSection.hxx>
 # include <IGESData_IGESModel.hxx>
+# include <IGESToBRep_Actor.hxx>
 # include <Interface_Static.hxx>
 # include <Transfer_TransientProcess.hxx>
 # include <XSControl_WorkSession.hxx>
+# include <XSControl_TransferReader.hxx>
 # include <APIHeaderSection_MakeHeader.hxx>
 # include <OSD_Exception.hxx>
 #endif
@@ -164,6 +166,9 @@ class Module : public Py::ExtensionModule<Module>
                     pi->Show();
                     aReader.Transfer(hDoc);
                     pi->EndScope();
+                    // http://opencascade.blogspot.de/2009/03/unnoticeable-memory-leaks-part-2.html
+                    Handle(IGESToBRep_Actor)::DownCast(aReader.WS()->TransferReader()->Actor())
+                            ->SetModel(new IGESData_IGESModel);
                 }
                 catch (OSD_Exception) {
                     Handle_Standard_Failure e = Standard_Failure::Caught();
diff --git a/src/Mod/Import/Gui/AppImportGuiPy.cpp b/src/Mod/Import/Gui/AppImportGuiPy.cpp
index 9af34c2b88ff..b4ba0e105917 100644
--- a/src/Mod/Import/Gui/AppImportGuiPy.cpp
+++ b/src/Mod/Import/Gui/AppImportGuiPy.cpp
@@ -52,9 +52,11 @@
 # include <IGESControl_Controller.hxx>
 # include <IGESData_GlobalSection.hxx>
 # include <IGESData_IGESModel.hxx>
+# include <IGESToBRep_Actor.hxx>
 # include <Interface_Static.hxx>
 # include <Transfer_TransientProcess.hxx>
 # include <XSControl_WorkSession.hxx>
+# include <XSControl_TransferReader.hxx>
 # include <TopTools_IndexedMapOfShape.hxx>
 # include <TopTools_MapOfShape.hxx>
 # include <TopExp_Explorer.hxx>
@@ -391,6 +393,9 @@ class Module : public Py::ExtensionModule<Module>
                     pi->Show();
                     aReader.Transfer(hDoc);
                     pi->EndScope();
+                    // http://opencascade.blogspot.de/2009/03/unnoticeable-memory-leaks-part-2.html
+                    Handle(IGESToBRep_Actor)::DownCast(aReader.WS()->TransferReader()->Actor())
+                            ->SetModel(new IGESData_IGESModel);
                 }
                 catch (OSD_Exception) {
                     Handle_Standard_Failure e = Standard_Failure::Caught();
@@ -565,6 +570,9 @@ class Module : public Py::ExtensionModule<Module>
                 pi->Show();
                 aReader.Transfer(hDoc);
                 pi->EndScope();
+                // http://opencascade.blogspot.de/2009/03/unnoticeable-memory-leaks-part-2.html
+                Handle(IGESToBRep_Actor)::DownCast(aReader.WS()->TransferReader()->Actor())
+                        ->SetModel(new IGESData_IGESModel);
             }
             else {
                 throw Py::Exception(Base::BaseExceptionFreeCADError, "no supported file format");