libcdoc::FileListSource Struct Reference

#include <Io.h>

Inherits libcdoc::MultiDataSource.

Public Member Functions
	FileListSource (const std::string &base, const std::vector< std::string > &files)
result_t	read (uint8_t *dst, size_t size) override final
	read bytes from input object
bool	isError () override final
	check whether DataConsumer is in error state
bool	isEof () override final
	check whether DataConsumer is reached to the end of data
result_t	getNumComponents () override final
result_t	next (std::string &name, int64_t &size) override final
Public Member Functions inherited from libcdoc::MultiDataSource
result_t	next (FileInfo &info)
Public Member Functions inherited from libcdoc::DataSource
	DataSource ()=default
virtual	~DataSource ()=default
virtual result_t	seek (size_t pos)
	set stream input pointer
virtual std::string	getLastErrorStr (result_t code) const
	get textual description of the last error
result_t	skip (size_t size)
	skip specified number of bytes
result_t	readAll (DataConsumer &dst)
	read all data and writes to output object
	DataSource (const DataSource &)=delete
DataSource &	operator= (const DataSource &)=delete

Protected Attributes
std::filesystem::path	_base
const std::vector< std::string > &	_files
int64_t	_current
std::ifstream	_ifs

Constructor & Destructor Documentation

FileListSource()

libcdoc::FileListSource::FileListSource	(	const std::string &	base,
		const std::vector< std::string > &	files
	)

Member Function Documentation

getNumComponents()

result_t libcdoc::FileListSource::getNumComponents ( )

finaloverridevirtual

Reimplemented from libcdoc::MultiDataSource.

isEof()

bool libcdoc::FileListSource::isEof ( )

finaloverridevirtual

check whether DataConsumer is reached to the end of data

Returns

true if end of stream

Reimplemented from libcdoc::DataSource.

isError()

bool libcdoc::FileListSource::isError ( )

finaloverridevirtual

check whether DataConsumer is in error state

Returns

true if error state

Reimplemented from libcdoc::DataSource.

next()

result_t libcdoc::FileListSource::next ( std::string &  name, int64_t &  size  )

finaloverridevirtual

Implements libcdoc::MultiDataSource.

read()

result_t libcdoc::FileListSource::read ( uint8_t *  dst, size_t  size  )

finaloverridevirtual

read bytes from input object

The following invariant holds:

• if there is neither error nor eof then result == size
• if there is no errors but end of stream is reached then 0 <= result <= size
• if there is error then result < 0

  Parameters

  dst	the destination block
  size	the number of bytes to read

  Returns

  the number of bytes read or error code

Reimplemented from libcdoc::DataSource.

Member Data Documentation

_base

std::filesystem::path libcdoc::FileListSource::_base

protected

_current

int64_t libcdoc::FileListSource::_current

protected

_files

const std::vector<std::string>& libcdoc::FileListSource::_files

protected

_ifs

std::ifstream libcdoc::FileListSource::_ifs

protected

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The documentation for this struct was generated from the following file:

• Io.h