BlobRef.h

// This may look like C code, but it is really -*- C++ -*-
//
// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002
//
// Copyright @ 2014 ImageMagick Studio LLC, a non-profit organization
// dedicated to making software imaging solutions freely available.
//
// Blob reference class
//
// This is an internal implementation class that should not be
// accessed by users.
//
 
#if !defined(Magick_Blob_header)
#define Magick_Blob_header
 
#include "Magick++/Include.h"
#include "Magick++/Thread.h"
#include "Magick++/Blob.h"
 
namespace Magick
{
  class BlobRef
  {
  public:
 
    // Construct with data, making private copy of data
    BlobRef(const void* data_,const size_t length_);
 
    // Destructor (actually destroys data)
    ~BlobRef(void);
 
    // Decreases reference count and return the new count
    size_t decrease();
 
    // Increases reference count
    void increase();
 
    Blob::Allocator allocator; // Memory allocation system in use
    size_t          length;    // Blob length
    void*           data;      // Blob data
 
  private:
    // Copy constructor and assignment are not supported
    BlobRef(const BlobRef&);
    BlobRef& operator=(const BlobRef&);
 
    MutexLock _mutexLock; // Mutex lock
    size_t    _refCount;  // Reference count
  };
 
} // namespace Magick
 
#endif // Magick_Blob_header