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Magick::Blob Class Reference

#include <Blob.h>

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Public Types

enum  Allocator { MallocAllocator, NewAllocator }
enum  Allocator { MallocAllocator, NewAllocator }

Public Member Functions

 Blob (void)
 Blob (const void *data_, size_t length_)
 Blob (const Blob &blob_)
virtual ~Blob ()
Blob & operator= (const Blob &blob_)
void base64 (const std::string base64_)
std::string base64 (void)
void update (const void *data_, size_t length_)
void updateNoCopy (void *data_, size_t length_, Allocator allocator_=NewAllocator)
const void * data (void) const
size_t length (void) const
 Blob (void)
 Blob (const void *data_, size_t length_)
 Blob (const Blob &blob_)
virtual ~Blob ()
Blob & operator= (const Blob &blob_)
void base64 (const std::string base64_)
std::string base64 (void)
void update (const void *data_, size_t length_)
void updateNoCopy (void *data_, size_t length_, Allocator allocator_=NewAllocator)
const void * data (void) const
size_t length (void) const

Private Attributes

BlobRef * _blobRef
BlobRef * _blobRef

Member Enumeration Documentation

enum Magick::Blob::Allocator
 

Enumeration values:
MallocAllocator 
NewAllocator 

Definition at line 24 of file Blob.h. 

00025     {
00026       MallocAllocator,
00027       NewAllocator
00028     };

enum Magick::Blob::Allocator
 

Enumeration values:
MallocAllocator 
NewAllocator 

Definition at line 24 of file Blob.h. 

00025     {
00026       MallocAllocator,
00027       NewAllocator
00028     };

Constructor & Destructor Documentation

Magick::Blob::Blob (  void   ) 
 

Definition at line 21 of file Blob.cpp. 

00022   : _blobRef(new Magick::BlobRef( 0, 0 ))
00023 {
00024 }

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

Definition at line 27 of file Blob.cpp. 

00028   : _blobRef(new Magick::BlobRef( data_, length_ ))
00029 {
00030 }

Magick::Blob::Blob (  const Blob &  blob_  ) 
 

Definition at line 33 of file Blob.cpp.

References _blobRef, Magick::BlobRef::_mutexLock, and Magick::BlobRef::_refCount. 

00034   : _blobRef(blob_._blobRef)
00035 {
00036   // Increase reference count
00037   Lock( &_blobRef->_mutexLock );
00038   ++_blobRef->_refCount;
00039 }

Magick::Blob::~Blob (   )  [virtual]
 

Definition at line 42 of file Blob.cpp.

References _blobRef, Magick::BlobRef::_mutexLock, and Magick::BlobRef::_refCount. 

00043 {
00044   bool doDelete = false;
00045   {
00046     Lock( &_blobRef->_mutexLock );
00047     if ( --_blobRef->_refCount == 0 )
00048       doDelete = true;
00049   }
00050 
00051   if ( doDelete )
00052     {
00053       // Delete old blob reference with associated data
00054       delete _blobRef;
00055     }
00056   _blobRef=0;
00057 }

Magick::Blob::Blob (  void   ) 
 

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

Magick::Blob::Blob (  const Blob &  blob_  ) 
 

virtual Magick::Blob::~Blob (   )  [virtual]
 

Member Function Documentation

std::string Magick::Blob::base64 (  void   ) 
 

void Magick::Blob::base64 (  const std::string  base64_  ) 
 

std::string Magick::Blob::base64 (  void   ) 
 

Definition at line 97 of file Blob.cpp.

References Base64Encode(), data(), length(), and RelinquishMagickMemory(). 

00098 {
00099   size_t encoded_length = 0;
00100 
00101   char *encoded =
00102     Base64Encode(static_cast<const unsigned char*>(data()), length(), &encoded_length);
00103 
00104   if(encoded)
00105     {
00106       std::string result(encoded,encoded_length);
00107       encoded=(char *) RelinquishMagickMemory(encoded);
00108       return result;
00109     }
00110 
00111   return std::string();
00112 }

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void Magick::Blob::base64 (  const std::string  base64_  ) 
 

Definition at line 84 of file Blob.cpp.

References Base64Decode(), length(), MallocAllocator, and updateNoCopy(). 

00085 {
00086   size_t length;
00087 
00088   unsigned char *decoded =
00089     Base64Decode( base64_.c_str(), &length );
00090 
00091   if(decoded)
00092     updateNoCopy( static_cast<void*>(decoded), length,
00093                   Magick::Blob::MallocAllocator );
00094 }

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const void* Magick::Blob::data (  void   )  const
 

const void * Magick::Blob::data (  void   )  const
 

Definition at line 158 of file Blob.cpp.

References _blobRef, and Magick::BlobRef::_data.

Referenced by base64(), Magick::Image::iptcProfile(), Magick::Image::ping(), Magick::Image::profile(), Magick::Image::read(), and Magick::readImages(). 

00159 {
00160   return _blobRef->_data;
00161 }

size_t Magick::Blob::length (  void   )  const
 

size_t Magick::Blob::length (  void   )  const
 

Definition at line 164 of file Blob.cpp.

References _blobRef, and Magick::BlobRef::_length.

Referenced by base64(), Magick::Image::iptcProfile(), Magick::Image::ping(), Magick::Image::profile(), Magick::Image::read(), and Magick::readImages(). 

00165 {
00166   return _blobRef->_length;
00167 }

Blob& Magick::Blob::operator= (  const Blob &  blob_  ) 
 

Magick::Blob & Magick::Blob::operator= (  const Blob &  blob_  ) 
 

Definition at line 60 of file Blob.cpp.

References _blobRef, Magick::BlobRef::_mutexLock, and Magick::BlobRef::_refCount. 

00061 {
00062   if(this != &blob_)
00063     {
00064       {
00065         Lock( &blob_._blobRef->_mutexLock );
00066         ++blob_._blobRef->_refCount;
00067       }
00068       bool doDelete = false;
00069       {
00070         Lock( &_blobRef->_mutexLock );
00071         if ( --_blobRef->_refCount == 0 )
00072           doDelete = true;
00073       }
00074       if ( doDelete )
00075         {
00076           delete _blobRef;
00077         }
00078       _blobRef = blob_._blobRef;
00079     }
00080   return *this;
00081 }

void Magick::Blob::update (  const void *  data_,
size_t  length_
) 
 

void Magick::Blob::update (  const void *  data_,
size_t  length_
) 
 

Definition at line 116 of file Blob.cpp.

References _blobRef, Magick::BlobRef::_mutexLock, Magick::BlobRef::_refCount, and update().

Referenced by update(). 

00117 {
00118   bool doDelete = false;
00119   {
00120     Lock( &_blobRef->_mutexLock );
00121     if ( --_blobRef->_refCount == 0 )
00122       doDelete = true;
00123   }
00124   if ( doDelete )
00125     {
00126       // Delete old blob reference with associated data
00127       delete _blobRef;
00128     }
00129 
00130   _blobRef = new Magick::BlobRef( data_, length_ );
00131 }

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void Magick::Blob::updateNoCopy (  void *  data_,
size_t  length_,
Allocator  allocator_ = NewAllocator
) 
 

void Magick::Blob::updateNoCopy (  void *  data_,
size_t  length_,
Allocator  allocator_ = NewAllocator
) 
 

Definition at line 137 of file Blob.cpp.

References Magick::BlobRef::_allocator, _blobRef, Magick::BlobRef::_data, Magick::BlobRef::_length, Magick::BlobRef::_mutexLock, Magick::BlobRef::_refCount, and updateNoCopy().

Referenced by base64(), updateNoCopy(), Magick::Image::write(), and Magick::writeImages(). 

00139 {
00140   bool doDelete = false;
00141   {
00142     Lock( &_blobRef->_mutexLock );
00143     if ( --_blobRef->_refCount == 0 )
00144       doDelete = true;
00145   }
00146   if ( doDelete )
00147     {
00148       // Delete old blob reference with associated data
00149       delete _blobRef;
00150     }
00151   _blobRef = new Magick::BlobRef( 0, 0 );
00152   _blobRef->_data   = data_;
00153   _blobRef->_length = length_;
00154   _blobRef->_allocator = allocator_;
00155 }

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Field Documentation

BlobRef* Magick::Blob::_blobRef [private]
 

Definition at line 77 of file Blob.h.

BlobRef* Magick::Blob::_blobRef [private]
 

Definition at line 77 of file Blob.h.

Referenced by Blob(), data(), length(), operator=(), update(), updateNoCopy(), and ~Blob().

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