From e848f45eaaeafaf91c9a77c7379cb357dac13f0c Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Mon, 24 Sep 2007 12:49:24 +0000
Subject: [PATCH] +  SMDS_Mesh::CheckMemory(); // PAL16631

---
 src/OBJECT/SMESH_Object.cxx | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/OBJECT/SMESH_Object.cxx b/src/OBJECT/SMESH_Object.cxx
index 181de551c..0dbbc68af 100644
--- a/src/OBJECT/SMESH_Object.cxx
+++ b/src/OBJECT/SMESH_Object.cxx
@@ -232,8 +232,12 @@ void SMESH_VisualObjDef::buildPrs()
 //=================================================================================
 void SMESH_VisualObjDef::buildNodePrs()
 {
+  // PAL16631: without swap, bad_alloc is not thrown but hung up and crash instead,
+  // so check remaining memory size for safety
+  SMDS_Mesh::CheckMemory(); // PAL16631
   vtkPoints* aPoints = vtkPoints::New();
   createPoints( aPoints );
+  SMDS_Mesh::CheckMemory();
   myGrid->SetPoints( aPoints );
   aPoints->Delete();
 
@@ -293,6 +297,10 @@ void SMESH_VisualObjDef::buildElemPrs()
   for ( int i = 0; i <= 2; i++ )
     nbEnts[ aTypes[ i ] ] = GetEntities( aTypes[ i ], anEnts[ aTypes[ i ] ] );
 
+  // PAL16631: without swap, bad_alloc is not thrown but hung up and crash instead,
+  // so check remaining memory size for safety
+  SMDS_Mesh::CheckMemory(); // PAL16631
+
   vtkIdType aCellsSize =  3 * nbEnts[ SMDSAbs_Edge ];
 
   for ( int i = 1; i <= 2; i++ ) // iterate through faces and volumes
@@ -316,16 +324,22 @@ void SMESH_VisualObjDef::buildElemPrs()
   vtkCellArray* aConnectivity = vtkCellArray::New();
   aConnectivity->Allocate( aCellsSize, 0 );
   
+  SMDS_Mesh::CheckMemory(); // PAL16631
+
   vtkUnsignedCharArray* aCellTypesArray = vtkUnsignedCharArray::New();
   aCellTypesArray->SetNumberOfComponents( 1 );
   aCellTypesArray->Allocate( aNbCells * aCellTypesArray->GetNumberOfComponents() );
   
+  SMDS_Mesh::CheckMemory(); // PAL16631
+
   vtkIdList *anIdList = vtkIdList::New();
   vtkIdType iElem = 0;
 
   TConnect aConnect;
   aConnect.reserve(VTK_CELL_SIZE);
 
+  SMDS_Mesh::CheckMemory(); // PAL16631
+
   for ( int i = 0; i <= 2; i++ ) // iterate through edges, faces and volumes
   {
     if( nbEnts[ aTypes[ i ] ] > 0 )
@@ -426,6 +440,7 @@ void SMESH_VisualObjDef::buildElemPrs()
         iElem++;
       }
     }
+    SMDS_Mesh::CheckMemory(); // PAL16631
   }
 
   // Insert cells in grid
@@ -434,6 +449,8 @@ void SMESH_VisualObjDef::buildElemPrs()
   aCellLocationsArray->SetNumberOfComponents( 1 );
   aCellLocationsArray->SetNumberOfTuples( aNbCells );
   
+  SMDS_Mesh::CheckMemory(); // PAL16631
+
   aConnectivity->InitTraversal();
   for( vtkIdType idType = 0, *pts, npts; aConnectivity->GetNextCell( npts, pts ); idType++ )
     aCellLocationsArray->SetValue( idType, aConnectivity->GetTraversalLocation( npts ) );
@@ -444,6 +461,8 @@ void SMESH_VisualObjDef::buildElemPrs()
   aCellTypesArray->Delete();
   aConnectivity->Delete();
   anIdList->Delete();
+
+  SMDS_Mesh::CheckMemory(); // PAL16631
 }
 
 //=================================================================================
-- 
2.39.2