Function NGS_DLL_HEADER ExportNgcomp

comp/python_comp.cpp:188–4928

void ExportReadAnsys (py::module &m);

void NGS_DLL_HEADER ExportNgcomp(py::module &m)
{

  ExportNgcompMesh(m);
  ExportReadAnsys(m);
  //////////////////////////////////////////////////////////////////////////////////////////

  static size_t global_heapsize =
    (sizeof(size_t) == 8) ? 100000000 : 10000000;
  // static LocalHeap glh(global_heapsize, "python-comp lh", true);

  // the global variable glh should be replaced by LocalHeapProvider
  static LocalHeap glh(10*1000*1000, "python-comp lh", true);

  class LocalHeapProvider
  {
    Array<LocalHeap*> heaps;
    std::mutex m;
    
    class BorrowedLocalHeap 
    {
      LocalHeap * lh;
      LocalHeapProvider * provider;
    public:
      BorrowedLocalHeap (LocalHeap * alh, LocalHeapProvider * aprovider)
        : lh(alh), provider(aprovider) { }
    
      ~BorrowedLocalHeap()
      {
        // cout << "returns lh to provider" << endl;
        provider -> ReturnLH(lh);
      }

      LocalHeap & LH() { return *lh; }
      operator LocalHeap& () { return *lh; }
    };
    
  
  public:
    BorrowedLocalHeap GetLH()
    {
      std::lock_guard lock(m);
      if (heaps.Size())
        {
          auto tmp = heaps.Last();
          heaps.SetSize(heaps.Size()-1);
          // cout << "reuse existing lh" << endl;        
          return BorrowedLocalHeap (tmp, this);
        }
      
      // cout << "create new lh" << endl;
      return BorrowedLocalHeap(new LocalHeap(global_heapsize, "python-comp lh", true), this);
    }
    
    void ReturnLH (LocalHeap * lh)
    {
      std::lock_guard lock(m);
      heaps.Append (lh);