vtkDebugLeaks.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkDebugLeaks.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkDebugLeaks_h
#define vtkDebugLeaks_h

#include "vtkCommonCoreModule.h" // For export macro
#include "vtkObject.h"

#include "vtkToolkits.h" // Needed for VTK_DEBUG_LEAKS macro setting.
#include "vtkDebugLeaksManager.h" // Needed for proper singleton initialization

class vtkDebugLeaksHashTable;
class vtkSimpleCriticalSection;
class vtkDebugLeaksObserver;

class VTKCOMMONCORE_EXPORT vtkDebugLeaks : public vtkObject
{
public:
  static vtkDebugLeaks *New();
  vtkTypeMacro(vtkDebugLeaks,vtkObject);

  static void ConstructClass(const char* classname);

  static void DestructClass(const char* classname);

  static int PrintCurrentLeaks();


  static int GetExitError();
  static void SetExitError(int);

  static void SetDebugLeaksObserver(vtkDebugLeaksObserver* observer);
  static vtkDebugLeaksObserver* GetDebugLeaksObserver();

protected:
  vtkDebugLeaks(){}
  ~vtkDebugLeaks() override{}

  static int DisplayMessageBox(const char*);

  static void ClassInitialize();
  static void ClassFinalize();

  static void ConstructingObject(vtkObjectBase* object);
  static void DestructingObject(vtkObjectBase* object);

  friend class vtkDebugLeaksManager;
  friend class vtkObjectBase;

private:
  static vtkDebugLeaksHashTable* MemoryTable;
  static vtkSimpleCriticalSection* CriticalSection;
  static vtkDebugLeaksObserver* Observer;
  static int ExitError;

  vtkDebugLeaks(const vtkDebugLeaks&) = delete;
  void operator=(const vtkDebugLeaks&) = delete;
};

// This class defines callbacks for debugging tools. The callbacks are not for general use.
// The objects passed as arguments to the callbacks are in partially constructed or destructed
// state and accessing them may cause undefined behavior.
class VTKCOMMONCORE_EXPORT vtkDebugLeaksObserver {
public:
  virtual ~vtkDebugLeaksObserver() {}
  virtual void ConstructingObject(vtkObjectBase*) = 0;
  virtual void DestructingObject(vtkObjectBase*) = 0;
};

#endif // vtkDebugLeaks_h
// VTK-HeaderTest-Exclude: vtkDebugLeaks.h