NSROOT::Compressor Class Reference

Public Types
typedef int(*	STREAM_READER) (void *handle, void *buf, int sz)

Public Member Functions
	Compressor (STREAM_READER reader, void *handle, int level=-1)
	Compressor (const char *input, size_t len, int level=-1)
bool	HasOutputData ()
	More data can be read from output stream. More...
bool	IsCompleted ()
	Output stream is completed. More...
bool	HasBufferError ()
	Data cannot be read from input. More...
bool	HasStreamError ()
	Data error occurred from stream. More...
size_t	ReadOutput (char *buf, size_t len)
	Copy data from output stream to the given pointer until size limit. More...
size_t	FetchOutput (const char **data)
	Fetch next chunk of data from output stream. No copy of data is performed and result can be used as is. More...

Private Types
enum	{ MEM_BUFFER, FCB_READER }

Private Member Functions
size_t	NextChunk ()

Static Private Member Functions
static int	_init (void *zp, void *out, size_t len, int level)

Private Attributes
int	m_status
int	m_flush
bool	m_stop
size_t	m_chunk_size
enum NSROOT::Compressor:: { ... }	m_type_in
size_t	m_input_len
const char *	m_input
STREAM_READER	m_rstream
void *	m_rstream_hdl
char *	m_rstream_buf
char *	m_output
size_t	m_output_pos
size_t	m_output_len
void *	_opaque

Detailed Description

Definition at line 33 of file compressor.h.

Member Function Documentation

FetchOutput()

size_t Compressor::FetchOutput

(

const char **

data

)

Fetch next chunk of data from output stream. No copy of data is performed and result can be used as is.

Parameters

data	pointer to const data pointer

Returns

the byte count available from the pointer to const data

Definition at line 172 of file compressor.cpp.

Referenced by HasOutputData(), and NSROOT::Decompressor::HasOutputData().

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HasBufferError()

bool Compressor::HasBufferError

(

)

Data cannot be read from input.

Returns

Input status

Definition at line 107 of file compressor.cpp.

Referenced by HasOutputData(), and NSROOT::Decompressor::HasOutputData().

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HasOutputData()

bool NSROOT::Compressor::HasOutputData ( )

inline

More data can be read from output stream.

Returns

Output status

Definition at line 46 of file compressor.h.

References FetchOutput(), HasBufferError(), HasStreamError(), IsCompleted(), and ReadOutput().

HasStreamError()

bool Compressor::HasStreamError

(

)

Data error occurred from stream.

Returns

stream status

Definition at line 112 of file compressor.cpp.

Referenced by HasOutputData(), and NSROOT::Decompressor::HasOutputData().

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IsCompleted()

bool Compressor::IsCompleted

(

)

Output stream is completed.

Returns

Output stream status

Definition at line 102 of file compressor.cpp.

Referenced by HasOutputData(), and NSROOT::Decompressor::HasOutputData().

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ReadOutput()

size_t Compressor::ReadOutput	(	char *	buf,
		size_t	len
	)

Copy data from output stream to the given pointer until size limit.

Parameters

buf	pointer to copy data
len	max length of data

Returns

lenght of copied data

Definition at line 125 of file compressor.cpp.

Referenced by HasOutputData(), and NSROOT::Decompressor::HasOutputData().

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

• /home/jlb/src/janbar/PVR/cppmythlib/cppmyth/src/private/compressor.h
• /home/jlb/src/janbar/PVR/cppmythlib/cppmyth/src/private/compressor.cpp