turi::fileio_impl::cache_stream_sink Class Reference

#include <core/storage/fileio/cache_stream_sink.hpp>

Public Member Functions
	cache_stream_sink (cache_id_type cache_id)
	~cache_stream_sink ()
	Destructor. CLoses the stream.
std::streamsize	write (const char *c, std::streamsize bufsize)
bool	is_open () const
void	close ()
std::streampos	seek (std::streamoff off, std::ios_base::seekdir way)
bool	good () const
bool	bad () const
bool	fail () const

Detailed Description

A boost::iostreams::sink concept implemented using cache_block as the underlying sink device.

Definition at line 24 of file cache_stream_sink.hpp.

Constructor & Destructor Documentation

cache_stream_sink()

turi::fileio_impl::cache_stream_sink::cache_stream_sink ( cache_id_type  cache_id )

explicit

Construct the sink from a cache_id.

Intialize the underlying data sink, either the in memory array or the on disk cache file.

Member Function Documentation

bad()

bool turi::fileio_impl::cache_stream_sink::bad

(

)

const

Returns true if the stream is bad. See std::ios_base

close()

void turi::fileio_impl::cache_stream_sink::close

(

)

Closes all file handles

fail()

bool turi::fileio_impl::cache_stream_sink::fail

(

)

const

Returns true if a stream operation failed. See std::ios_base

good()

bool turi::fileio_impl::cache_stream_sink::good

(

)

const

Returns true if the stream is good. See std::ios_base

is_open()

bool turi::fileio_impl::cache_stream_sink::is_open

(

)

const

Returns true if the file is opened

seek()

std::streampos turi::fileio_impl::cache_stream_sink::seek	(	std::streamoff	off,
		std::ios_base::seekdir	way
	)

Seeks to a different location. Will fail on compressed files.

write()

std::streamsize turi::fileio_impl::cache_stream_sink::write	(	const char *	c,
		std::streamsize	bufsize
	)

Attempts to write bufsize bytes into the stream from the buffer. Returns the actual number of bytes written. Returns -1 on failure.

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

• core/storage/fileio/cache_stream_sink.hpp