leveldb::Version Class Reference

#include <version_set.h>

Classes
struct	GetStats
class	LevelFileNumIterator

Public Member Functions
void	AddIterators (const ReadOptions &, std::vector< Iterator * > *iters)
Status	Get (const ReadOptions &, const LookupKey &key, std::string *val, GetStats *stats)
bool	UpdateStats (const GetStats &stats)
bool	RecordReadSample (Slice key)
void	Ref ()
void	Unref ()
void	GetOverlappingInputs (int level, const InternalKey *begin, const InternalKey *end, std::vector< FileMetaData * > *inputs)
bool	OverlapInLevel (int level, const Slice *smallest_user_key, const Slice *largest_user_key)
int	PickLevelForMemTableOutput (const Slice &smallest_user_key, const Slice &largest_user_key)
int	NumFiles (int level) const
std::string	DebugString () const

Private Member Functions
Iterator *	NewConcatenatingIterator (const ReadOptions &, int level) const
void	ForEachOverlapping (Slice user_key, Slice internal_key, void *arg, bool(*func)(void *, int, FileMetaData *))
	Version (VersionSet *vset)
	~Version ()
	Version (const Version &)
void	operator= (const Version &)

Private Attributes
VersionSet *	vset_
Version *	next_
Version *	prev_
int	refs_
std::vector< FileMetaData * >	files_ [config::kNumLevels]
FileMetaData *	file_to_compact_
int	file_to_compact_level_
double	compaction_score_
int	compaction_level_

Friends
class	Compaction
class	VersionSet

Constructor & Destructor Documentation

Version() [1/2]

leveldb::Version::Version ( VersionSet *  vset )

inlineexplicitprivate

~Version()

leveldb::Version::~Version ( )

private

Version() [2/2]

leveldb::Version::Version ( const Version &  )

private

Member Function Documentation

AddIterators()

void leveldb::Version::AddIterators	(	const ReadOptions &	options,
		std::vector< Iterator * > *	iters
	)

DebugString()

std::string leveldb::Version::DebugString

(

)

const

ForEachOverlapping()

void leveldb::Version::ForEachOverlapping ( Slice  user_key, Slice  internal_key, void *  arg, bool(*)(void *, int, FileMetaData *)  func  )

private

Get()

Status leveldb::Version::Get	(	const ReadOptions &	options,
		const LookupKey &	key,
		std::string *	val,
		GetStats *	stats
	)

GetOverlappingInputs()

void leveldb::Version::GetOverlappingInputs	(	int	level,
		const InternalKey *	begin,
		const InternalKey *	end,
		std::vector< FileMetaData * > *	inputs
	)

NewConcatenatingIterator()

Iterator * leveldb::Version::NewConcatenatingIterator ( const ReadOptions &  options, int  level  ) const

private

NumFiles()

int leveldb::Version::NumFiles ( int  level ) const

inline

operator=()

void leveldb::Version::operator= ( const Version &  )

private

OverlapInLevel()

bool leveldb::Version::OverlapInLevel	(	int	level,
		const Slice *	smallest_user_key,
		const Slice *	largest_user_key
	)

PickLevelForMemTableOutput()

int leveldb::Version::PickLevelForMemTableOutput	(	const Slice &	smallest_user_key,
		const Slice &	largest_user_key
	)

RecordReadSample()

bool leveldb::Version::RecordReadSample

(

Slice

key

)

Ref()

void leveldb::Version::Ref

(

)

Unref()

void leveldb::Version::Unref

(

)

UpdateStats()

bool leveldb::Version::UpdateStats

(

const GetStats &

stats

)

Friends And Related Function Documentation

Compaction

friend class Compaction

friend

VersionSet

friend class VersionSet

friend

Member Data Documentation

compaction_level_

int leveldb::Version::compaction_level_

private

compaction_score_

double leveldb::Version::compaction_score_

private

file_to_compact_

FileMetaData* leveldb::Version::file_to_compact_

private

file_to_compact_level_

int leveldb::Version::file_to_compact_level_

private

files_

std::vector<FileMetaData*> leveldb::Version::files_[config::kNumLevels]

private

next_

Version* leveldb::Version::next_

private

prev_

Version* leveldb::Version::prev_

private

refs_

int leveldb::Version::refs_

private

vset_

VersionSet* leveldb::Version::vset_

private

---

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

• src/leveldb/db/version_set.h
• src/leveldb/db/version_set.cc