Magick::BlobRef Class Reference

Collaboration diagram for Magick::BlobRef:

Public Member Functions
	BlobRef (const void *data_, const size_t length_)
size_t	decrease ()
void	increase ()

Public Attributes
Blob::Allocator	allocator
size_t	length
void *	data

Private Member Functions
	BlobRef (const BlobRef &)
BlobRef &	operator= (const BlobRef &)

Private Attributes
MutexLock	_mutexLock
size_t	_refCount

Detailed Description

Definition at line 23 of file BlobRef.h.

Constructor & Destructor Documentation

BlobRef()

Magick::BlobRef::BlobRef	(	const void *	data_,
		const size_t	length_
	)

Definition at line 21 of file BlobRef.cpp.

  : allocator(Magick::Blob::NewAllocator),
    length(length_),
    data((void*) NULL),
    _mutexLock(),
    _refCount(1)
{
  if (data_ != (const void*) NULL)
    {
      data=new unsigned char[length_];
      memcpy(data,data_,length_);
    }
}

~BlobRef()

Magick::BlobRef::~BlobRef

(

void

)

Definition at line 35 of file BlobRef.cpp.

{
  if (allocator == Magick::Blob::NewAllocator)
    {
      delete[] static_cast<unsigned char*>(data);
      data=(void *) NULL;
    }
  else if (allocator == Magick::Blob::MallocAllocator)
    data=(void *) RelinquishMagickMemory(data);
}

Member Function Documentation

decrease()

size_t Magick::BlobRef::decrease

(

)

Definition at line 46 of file BlobRef.cpp.

{
  size_t
    count;
 
  _mutexLock.lock();
  if (_refCount == 0)
    {
      _mutexLock.unlock();
      throwExceptionExplicit(MagickCore::OptionError,
        "Invalid call to decrease");
      return(0);
    }
  count=--_refCount;
  _mutexLock.unlock();
  return(count);
}

increase()

void Magick::BlobRef::increase

(

)

Definition at line 64 of file BlobRef.cpp.

{
  _mutexLock.lock();
  _refCount++;
  _mutexLock.unlock();
}

Member Data Documentation

_mutexLock

MutexLock Magick::BlobRef::_mutexLock

private

Definition at line 48 of file BlobRef.h.

_refCount

size_t Magick::BlobRef::_refCount

private

Definition at line 49 of file BlobRef.h.

allocator

Blob::Allocator Magick::BlobRef::allocator

Definition at line 39 of file BlobRef.h.

data

void* Magick::BlobRef::data

Definition at line 41 of file BlobRef.h.

length

size_t Magick::BlobRef::length

Definition at line 40 of file BlobRef.h.

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The documentation for this class was generated from the following files:

• ImageMagick-7/Magick++/lib/Magick++/BlobRef.h
• ImageMagick-7/Magick++/lib/BlobRef.cpp