BlobRef.cpp

// This may look like C code, but it is really -*- C++ -*-
//
// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002, 2004
// Copyright Dirk Lemstra 2015
//
// Implementation of Blob
//
 
#define MAGICKCORE_IMPLEMENTATION  1
#define MAGICK_PLUSPLUS_IMPLEMENTATION 1
 
#include "Magick++/Include.h"
#include "Magick++/Thread.h"
#include "Magick++/BlobRef.h"
 
#include <string.h>
 
Magick::BlobRef::BlobRef(const void* data_,const size_t length_)
  : _data(0),
    _length(length_),
    _allocator(Magick::Blob::NewAllocator),
    _refCount(1),
    _mutexLock()
{
  if (data_)
    {
      _data=new unsigned char[length_];
      memcpy(_data,data_,length_);
    }
}
 
// Destructor (actually destroys data)
Magick::BlobRef::~BlobRef(void)
{
  if (_allocator == Magick::Blob::NewAllocator)
    {
      delete[] static_cast<unsigned char*>(_data);
      _data=0;
    }
  else if (_allocator == Magick::Blob::MallocAllocator)
    {
      _data=(void *) RelinquishMagickMemory(_data);
    }
}