mlMemoryBlockHandle.h

Go to the documentation of this file.

/*************************************************************************************
**
** Copyright 2008, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef ML_MEMORY_BLOCK_HANDLE_H
#define ML_MEMORY_BLOCK_HANDLE_H
 
#ifdef _MSC_VER
// Disable all system header warnings.
#pragma warning( push,0 )
#endif
#include <cstddef>
#ifdef _MSC_VER
#pragma warning( pop )
#endif
 
#include "../mlMemoryManagerDllExport.h"
 
 
class MLMemoryBlock;
class MLWeakMemoryBlockHandle;
 

class MLMEMORYMANAGER_EXPORT MLMemoryBlockHandle
{
public:
  MLMemoryBlockHandle();
  MLMemoryBlockHandle(const MLMemoryBlockHandle& memoryBlockHandle);
  MLMemoryBlockHandle(const MLWeakMemoryBlockHandle& weakMemoryBlockHandle);

  ~MLMemoryBlockHandle();

  bool isNull() const;

  void* data() const;

  size_t size() const;

  void clear();


  MLMemoryBlockHandle& operator=(const MLMemoryBlockHandle& memoryBlockHandle);

  MLMemoryBlockHandle& operator=(const MLWeakMemoryBlockHandle& weakMemoryBlockHandle);
 // End of group ThreadSafe
 
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
private:
  void setMemoryBlockFromStrongHandle(const MLMemoryBlockHandle& memoryBlockHandle);
  void setMemoryBlockFromWeakHandle(const MLWeakMemoryBlockHandle& weakMemoryBlockHandle);
 
private:
  MLMemoryBlock* _memoryBlock;
 
  friend class MLMemoryBlock;
  friend class MLMemoryManager;
  friend class MLWeakMemoryBlockHandle;
#endif
};
 
#endif // MLMEMORYBLOCKHandle_H_INCLUDED