[MOAB-dev] memory leak in AEntityFactory.cpp

[Lukasz Kaczmarczyk]

Hello,

I encounter following leak,

==2639== 40,680 bytes in 5,085 blocks are indirectly lost in loss record 62 of 63
==2639==    at 0x4837DBF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==2639==    by 0x4EA49CB: __gnu_cxx::new_allocator<unsigned long>::allocate(unsigned long, void const*) (new_allocator.h:111)
==2639==    by 0x4E90C2B: std::allocator_traits<std::allocator<unsigned long> >::allocate(std::allocator<unsigned long>&, unsigned long) (alloc_traits.h:436)
==2639==    by 0x4E75AB7: std::_Vector_base<unsigned long, std::allocator<unsigned long> >::_M_allocate(unsigned long) (stl_vector.h:296)
==2639==    by 0x4FF60A4: void std::vector<unsigned long, std::allocator<unsigned long> >::_M_realloc_insert<unsigned long const&>(__gnu_cxx::__normal_iterator<unsigned long*, std::vector<unsigned long, std::allocator<unsigned long> > >, unsigned long const&) (vector.tcc:427)
==2639==    by 0x8652FCC: push_back (stl_vector.h:1085)
==2639==    by 0x8652FCC: moab::AEntityFactory::add_adjacency(unsigned long, unsigned long, bool) (AEntityFactory.cpp:393)
==2639==    by 0x8736ED5: ranged_insert_entities (MeshSet.cpp:613)
==2639==    by 0x8736ED5: moab::MeshSet::insert_entity_ranges(moab::Range const&, unsigned long, moab::AEntityFactory*) (MeshSet.cpp:985)
==2639==    by 0x89A2FDF: moab::ReadHDF5::read_set_data(moab::Range const&, unsigned long, moab::ReadHDF5Dataset&, moab::ReadHDF5::SetMode, moab::Range*) (ReadHDF5.cpp:2568)
==2639==    by 0x89B33FF: moab::ReadHDF5::read_sets(moab::Range const&) (ReadHDF5.cpp:1958)
==2639==    by 0x89B6FF9: moab::ReadHDF5::load_file_impl(moab::FileOptions const&) (ReadHDF5.cpp:647)
==2639==    by 0x89B7662: moab::ReadHDF5::load_file(char const*, unsigned long const*, moab::FileOptions const&, moab::ReaderIface::SubsetList const*, moab::TagInfo* const*) (ReadHDF5.cpp:555)
==2639==    by 0x86842B9: moab::Core::serial_load_file(char const*, unsigned long const*, moab::FileOptions const&, moab::ReaderIface::SubsetList const*, moab::TagInfo* const*) (Core.cpp:600)
==2639== 
==2639== 162,720 (122,040 direct, 40,680 indirect) bytes in 5,085 blocks are definitely lost in loss record 63 of 63
==2639==    at 0x4837DBF: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==2639==    by 0x8652639: moab::AEntityFactory::get_adjacencies(unsigned long, std::vector<unsigned long, std::allocator<unsigned long> >*&, bool) (AEntityFactory.cpp:565)
==2639==    by 0x8652EB5: moab::AEntityFactory::add_adjacency(unsigned long, unsigned long, bool) (AEntityFactory.cpp:376)
==2639==    by 0x8736ED5: ranged_insert_entities (MeshSet.cpp:613)
==2639==    by 0x8736ED5: moab::MeshSet::insert_entity_ranges(moab::Range const&, unsigned long, moab::AEntityFactory*) (MeshSet.cpp:985)
==2639==    by 0x89A2FDF: moab::ReadHDF5::read_set_data(moab::Range const&, unsigned long, moab::ReadHDF5Dataset&, moab::ReadHDF5::SetMode, moab::Range*) (ReadHDF5.cpp:2568)
==2639==    by 0x89B33FF: moab::ReadHDF5::read_sets(moab::Range const&) (ReadHDF5.cpp:1958)
==2639==    by 0x89B6FF9: moab::ReadHDF5::load_file_impl(moab::FileOptions const&) (ReadHDF5.cpp:647)
==2639==    by 0x89B7662: moab::ReadHDF5::load_file(char const*, unsigned long const*, moab::FileOptions const&, moab::ReaderIface::SubsetList const*, moab::TagInfo* const*) (ReadHDF5.cpp:555)
==2639==    by 0x86842B9: moab::Core::serial_load_file(char const*, unsigned long const*, moab::FileOptions const&, moab::ReaderIface::SubsetList const*, moab::TagInfo* const*) (Core.cpp:600)
==2639==    by 0x8684E57: moab::Core::load_file(char const*, unsigned long const*, char const*, char const*, int const*, int) (Core.cpp:514)
==2639==    by 0x4FB5E37: FractureMechanics::MWLSApprox::loadMWLSMesh(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) (MWLS.cpp:100)
==2639==    by 0x1A5FE4: main (mwls_at_gauss_point.cpp:166)

In following function,

ErrorCode AEntityFactory::add_adjacency(EntityHandle from_ent,
                                           EntityHandle to_ent,
                                           const bool both_ways) 
{
  EntityType to_type = TYPE_FROM_HANDLE(to_ent);

  if (to_type == MBVERTEX) 
    return MB_ALREADY_ALLOCATED;
  
  
  
  AdjacencyVector *adj_list_ptr = NULL;
  ErrorCode result = get_adjacencies( from_ent, adj_list_ptr, true );
  if (MB_SUCCESS != result) 
    return result;

    // get an iterator to the right spot in this sorted vector
  AdjacencyVector::iterator adj_iter;
  if (!adj_list_ptr->empty()) 
  {
    adj_iter = std::lower_bound(adj_list_ptr->begin(), adj_list_ptr->end(),
                                to_ent);

    if ( adj_iter == adj_list_ptr->end() || to_ent != *adj_iter )
    {
      adj_list_ptr->insert(adj_iter, to_ent);
    }
  }
  else
    adj_list_ptr->push_back(to_ent);

    // if both_ways is true, recursively call this function
  if (true == both_ways && to_type != MBVERTEX)
    result = add_adjacency(to_ent, from_ent, false);
  
  return result;
}

In case of not the case (true == both_ways && to_type != MBVERTEX), or result != MB_SUCESS, should we realise adj_list_ptr. I can do PR,  if needed. 


Kind regards,
Lukasz