A std::istream-like input data stream for binary data. More...

#include <dataIStream.h>

Inheritance diagram for co::DataIStream:

Collaboration diagram for co::DataIStream:

Internal
virtual size_t	nRemainingBuffers () const =0

virtual uint128_t	getVersion () const =0

virtual void	reset ()

void	setSwapping (const bool onOff)

CO_API bool	isSwapping () const

DataIStream &	operator= (const DataIStream &rhs)

CO_API	DataIStream (const bool swap)

	DataIStream (const DataIStream &)

virtual CO_API	~DataIStream ()

virtual bool	getNextBuffer (CompressorInfo &info, uint32_t &nChunks, const void *&chunkData, uint64_t &size)=0

Data input
template<typename T >
T	read ()

template<class T >
DataIStream &	operator>> (T &value)
	Read a plain data item. More...

template<class T >
DataIStream &	operator>> (Array< T > array)
	Read a C array. More...

template<class T >
DataIStream &	operator>> (lunchbox::RefPtr< T > &)
	Read a lunchbox::RefPtr. More...

template<class T >
DataIStream &	operator>> (lunchbox::Buffer< T > &)
	Read a lunchbox::Buffer. More...

template<class T >
DataIStream &	operator>> (std::vector< T > &)
	Read a std::vector of serializable items. More...

template<class K , class V >
DataIStream &	operator>> (std::map< K, V > &)
	Read a std::map of serializable items. More...

template<class T >
DataIStream &	operator>> (std::set< T > &)
	Read a std::set of serializable items. More...

template<class K , class V >
DataIStream &	operator>> (stde::hash_map< K, V > &)
	Read a stde::hash_map of serializable items. More...

template<class T >
DataIStream &	operator>> (stde::hash_set< T > &)
	Read a stde::hash_set of serializable items. More...

template<typename O , typename C >
void	deserializeChildren (O object, const std::vector< C > &old, std::vector< C * > &result)

CO_API const void *	getRemainingBuffer (const uint64_t size)

CO_API uint64_t	getRemainingBufferSize ()

bool	wasUsed () const

bool	hasData ()

virtual CO_API NodePtr	getRemoteNode () const =0

virtual CO_API LocalNodePtr	getLocalNode () const =0

template<class T >
static void	swap (T &v)
	Byte-swap a plain data item. More...

Specialized input operators
template<>
DataIStream &	operator>> (std::string &str)
	Read a std::string. More...

template<>
DataIStream &	operator>> (Object *&object)
	Deserialize an object (id+version). More...

template<>
DataIStream &	operator>> (std::vector< uint8_t > &value)
	Optimized specialization to read a std::vector of uint8_t. More...

template<>
DataIStream &	operator>> (std::vector< uint16_t > &value)
	Optimized specialization to read a std::vector of uint16_t. More...

template<>
DataIStream &	operator>> (std::vector< int16_t > &value)
	Optimized specialization to read a std::vector of int16_t. More...

template<>
DataIStream &	operator>> (std::vector< uint32_t > &value)
	Optimized specialization to read a std::vector of uint32_t. More...

template<>
DataIStream &	operator>> (std::vector< int32_t > &value)
	Optimized specialization to read a std::vector of int32_t. More...

template<>
DataIStream &	operator>> (std::vector< uint64_t > &value)
	Optimized specialization to read a std::vector of uint64_t. More...

template<>
DataIStream &	operator>> (std::vector< int64_t > &value)
	Optimized specialization to read a std::vector of int64_t. More...

template<>
DataIStream &	operator>> (std::vector< float > &value)
	Optimized specialization to read a std::vector of float. More...

template<>
DataIStream &	operator>> (std::vector< double > &value)
	Optimized specialization to read a std::vector of double. More...

template<>
DataIStream &	operator>> (std::vector< ObjectVersion > &value)
	Optimized specialization to read a std::vector of ObjectVersion. More...

Detailed Description

A std::istream-like input data stream for binary data.

Definition at line 41 of file dataIStream.h.

Member Function Documentation

virtual CO_API LocalNodePtr co::DataIStream::getLocalNode ( ) const

pure virtual

Returns: the receiver of the istream.

Implemented in co::ICommand.

CO_API const void* co::DataIStream::getRemainingBuffer ( const uint64_t size )

Deprecated:: Get the pointer to the remaining data in the current buffer.

The usage of this method is discouraged, no endian conversion or bounds checking is performed by the DataIStream on the returned raw pointer.

The buffer is advanced by the given size. If not enough data is present, 0 is returned and the buffer is unchanged.

The data written to the DataOStream by the sender is bucketized, it is sent in multiple blocks. The remaining buffer and its size points into one of the buffers, i.e., not all the data sent is returned by this function. However, a write operation on the other end is never segmented, that is, if the application writes n bytes to the DataOStream, a symmetric read from the DataIStream has at least n bytes available.

Parameters

size	the number of bytes to advance the buffer

Version: 1.0

Referenced by co::Distributable< T, S, Args >::notifyChanged(), and operator>>().

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CO_API uint64_t co::DataIStream::getRemainingBufferSize ( )

Returns: the size of the remaining data in the current buffer.

Version: 1.0

Referenced by operator>>().

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virtual CO_API NodePtr co::DataIStream::getRemoteNode ( ) const

pure virtual

Returns: the provider of the istream.

Implemented in co::ICommand.

bool co::DataIStream::hasData ( )

inline

Returns: true if not all data has been read.

Version: 1.0

Definition at line 155 of file dataIStream.h.

template<>

DataIStream& co::DataIStream::operator>> ( std::string & str )

inline

Read a std::string.

Definition at line 28 of file dataIStream.ipp.

References getRemainingBuffer(), and getRemainingBufferSize().

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template<>

DataIStream& co::DataIStream::operator>> ( Object *& object )

inline

Deserialize an object (id+version).

Definition at line 48 of file dataIStream.ipp.

References co::Object::getID(), getRemainingBuffer(), co::ObjectVersion::identifier, operator>>(), and co::ObjectVersion::version.

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template<class T >

DataIStream& co::DataIStream::operator>> ( T & value )

inline

Read a plain data item.

Version: 1.0

Definition at line 63 of file dataIStream.h.

Referenced by operator>>().

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template<class T >

DataIStream& co::DataIStream::operator>> ( Array< T > array )

inline

Read a C array.

Version: 1.0

Definition at line 67 of file dataIStream.h.

template<class T >

DataIStream& co::DataIStream::operator>> ( lunchbox::RefPtr< T > & )

Read a lunchbox::RefPtr.

Refcount has to managed by caller.

Version: 1.1

template<class T >

DataIStream& co::DataIStream::operator>> ( lunchbox::Buffer< T > & )

Read a lunchbox::Buffer.

Version: 1.0

template<class T >

DataIStream& co::DataIStream::operator>> ( std::vector< T > & )

Read a std::vector of serializable items.

Version: 1.0

template<class K , class V >

DataIStream& co::DataIStream::operator>> ( std::map< K, V > & )

Read a std::map of serializable items.

Version: 1.0

template<class T >

DataIStream& co::DataIStream::operator>> ( std::set< T > & )

Read a std::set of serializable items.

Version: 1.0

template<class K , class V >

DataIStream& co::DataIStream::operator>> ( stde::hash_map< K, V > & )

Read a stde::hash_map of serializable items.

Version: 1.0

template<class T >

DataIStream& co::DataIStream::operator>> ( stde::hash_set< T > & )

Read a stde::hash_set of serializable items.

Version: 1.0

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< uint8_t > & value )

inline

Optimized specialization to read a std::vector of uint8_t.

Definition at line 262 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< uint16_t > & value )

inline

Optimized specialization to read a std::vector of uint16_t.

Definition at line 267 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< int16_t > & value )

inline

Optimized specialization to read a std::vector of int16_t.

Definition at line 272 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< uint32_t > & value )

inline

Optimized specialization to read a std::vector of uint32_t.

Definition at line 277 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< int32_t > & value )

inline

Optimized specialization to read a std::vector of int32_t.

Definition at line 282 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< uint64_t > & value )

inline

Optimized specialization to read a std::vector of uint64_t.

Definition at line 287 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< int64_t > & value )

inline

Optimized specialization to read a std::vector of int64_t.

Definition at line 292 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< float > & value )

inline

Optimized specialization to read a std::vector of float.

Definition at line 297 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< double > & value )

inline

Optimized specialization to read a std::vector of double.

Definition at line 302 of file dataIStream.ipp.

template<>

DataIStream& co::DataIStream::operator>> ( std::vector< ObjectVersion > & value )

inline

Optimized specialization to read a std::vector of ObjectVersion.

Definition at line 307 of file dataIStream.ipp.

template<typename T >

T co::DataIStream::read ( )

inline

Returns: a value from the stream.

Version: 1.0

Definition at line 59 of file dataIStream.h.

Referenced by co::Distributable< T, S, Args >::notifyChanged().

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template<class T >

static void co::DataIStream::swap ( T & v )

inlinestatic

Byte-swap a plain data item.

Defines:: CO_IGNORE_BYTESWAP: If set, no byteswapping of transmitted data is performed.

Enable when you get unresolved symbols for lunchbox::byteswap and you don't care about mixed-endian environments.

Version: 1.0

Definition at line 106 of file dataIStream.h.

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

Internal

Data input

Specialized input operators

Detailed Description

Member Function Documentation