leveldb::VersionSet Class Reference

#include <version_set.h>

Classes
class	Builder
struct	LevelSummaryStorage

Public Member Functions
	VersionSet (const std::string &dbname, const Options *options, TableCache *table_cache, const InternalKeyComparator *)
	~VersionSet ()
Status	LogAndApply (VersionEdit *edit, port::Mutex *mu) EXCLUSIVE_LOCKS_REQUIRED(mu)
Status	Recover (bool *save_manifest)
Version *	current () const
uint64_t	ManifestFileNumber () const
uint64_t	NewFileNumber ()
void	ReuseFileNumber (uint64_t file_number)
int	NumLevelFiles (int level) const
int64_t	NumLevelBytes (int level) const
uint64_t	LastSequence () const
void	SetLastSequence (uint64_t s)
void	MarkFileNumberUsed (uint64_t number)
uint64_t	LogNumber () const
uint64_t	PrevLogNumber () const
Compaction *	PickCompaction ()
Compaction *	CompactRange (int level, const InternalKey *begin, const InternalKey *end)
int64_t	MaxNextLevelOverlappingBytes ()
Iterator *	MakeInputIterator (Compaction *c)
bool	NeedsCompaction () const
void	AddLiveFiles (std::set< uint64_t > *live)
uint64_t	ApproximateOffsetOf (Version *v, const InternalKey &key)
const char *	LevelSummary (LevelSummaryStorage *scratch) const

Private Member Functions
bool	ReuseManifest (const std::string &dscname, const std::string &dscbase)
void	Finalize (Version *v)
void	GetRange (const std::vector< FileMetaData * > &inputs, InternalKey *smallest, InternalKey *largest)
void	GetRange2 (const std::vector< FileMetaData * > &inputs1, const std::vector< FileMetaData * > &inputs2, InternalKey *smallest, InternalKey *largest)
void	SetupOtherInputs (Compaction *c)
Status	WriteSnapshot (log::Writer *log)
void	AppendVersion (Version *v)
	VersionSet (const VersionSet &)
void	operator= (const VersionSet &)

Private Attributes
Env *const	env_
const std::string	dbname_
const Options *const	options_
TableCache *const	table_cache_
const InternalKeyComparator	icmp_
uint64_t	next_file_number_
uint64_t	manifest_file_number_
uint64_t	last_sequence_
uint64_t	log_number_
uint64_t	prev_log_number_
WritableFile *	descriptor_file_
log::Writer *	descriptor_log_
Version	dummy_versions_
Version *	current_
std::string	compact_pointer_ [config::kNumLevels]

Friends
class	Compaction
class	Version

Constructor & Destructor Documentation

VersionSet() [1/2]

leveldb::VersionSet::VersionSet	(	const std::string &	dbname,
		const Options *	options,
		TableCache *	table_cache,
		const InternalKeyComparator *	cmp
	)

~VersionSet()

leveldb::VersionSet::~VersionSet

(

)

VersionSet() [2/2]

leveldb::VersionSet::VersionSet ( const VersionSet &  )

private

Member Function Documentation

AddLiveFiles()

void leveldb::VersionSet::AddLiveFiles

(

std::set< uint64_t > *

live

)

AppendVersion()

void leveldb::VersionSet::AppendVersion ( Version *  v )

private

ApproximateOffsetOf()

uint64_t leveldb::VersionSet::ApproximateOffsetOf	(	Version *	v,
		const InternalKey &	key
	)

CompactRange()

Compaction * leveldb::VersionSet::CompactRange	(	int	level,
		const InternalKey *	begin,
		const InternalKey *	end
	)

current()

Version* leveldb::VersionSet::current ( ) const

inline

Finalize()

void leveldb::VersionSet::Finalize ( Version *  v )

private

GetRange()

void leveldb::VersionSet::GetRange ( const std::vector< FileMetaData * > &  inputs, InternalKey *  smallest, InternalKey *  largest  )

private

GetRange2()

void leveldb::VersionSet::GetRange2 ( const std::vector< FileMetaData * > &  inputs1, const std::vector< FileMetaData * > &  inputs2, InternalKey *  smallest, InternalKey *  largest  )

private

LastSequence()

uint64_t leveldb::VersionSet::LastSequence ( ) const

inline

LevelSummary()

const char * leveldb::VersionSet::LevelSummary

(

LevelSummaryStorage *

scratch

)

const

LogAndApply()

Status leveldb::VersionSet::LogAndApply	(	VersionEdit *	edit,
		port::Mutex *	mu
	)

LogNumber()

uint64_t leveldb::VersionSet::LogNumber ( ) const

inline

MakeInputIterator()

Iterator * leveldb::VersionSet::MakeInputIterator

(

Compaction *

c

)

ManifestFileNumber()

uint64_t leveldb::VersionSet::ManifestFileNumber ( ) const

inline

MarkFileNumberUsed()

void leveldb::VersionSet::MarkFileNumberUsed

(

uint64_t

number

)

MaxNextLevelOverlappingBytes()

int64_t leveldb::VersionSet::MaxNextLevelOverlappingBytes

(

)

NeedsCompaction()

bool leveldb::VersionSet::NeedsCompaction ( ) const

inline

NewFileNumber()

uint64_t leveldb::VersionSet::NewFileNumber ( )

inline

NumLevelBytes()

int64_t leveldb::VersionSet::NumLevelBytes

(

int

level

)

const

NumLevelFiles()

int leveldb::VersionSet::NumLevelFiles

(

int

level

)

const

operator=()

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

private

PickCompaction()

Compaction * leveldb::VersionSet::PickCompaction

(

)

PrevLogNumber()

uint64_t leveldb::VersionSet::PrevLogNumber ( ) const

inline

Recover()

Status leveldb::VersionSet::Recover

(

bool *

save_manifest

)

ReuseFileNumber()

void leveldb::VersionSet::ReuseFileNumber ( uint64_t  file_number )

inline

ReuseManifest()

bool leveldb::VersionSet::ReuseManifest ( const std::string &  dscname, const std::string &  dscbase  )

private

SetLastSequence()

void leveldb::VersionSet::SetLastSequence ( uint64_t  s )

inline

SetupOtherInputs()

void leveldb::VersionSet::SetupOtherInputs ( Compaction *  c )

private

WriteSnapshot()

Status leveldb::VersionSet::WriteSnapshot ( log::Writer *  log )

private

Friends And Related Function Documentation

Compaction

friend class Compaction

friend

Version

friend class Version

friend

Member Data Documentation

compact_pointer_

std::string leveldb::VersionSet::compact_pointer_[config::kNumLevels]

private

current_

Version* leveldb::VersionSet::current_

private

dbname_

const std::string leveldb::VersionSet::dbname_

private

descriptor_file_

WritableFile* leveldb::VersionSet::descriptor_file_

private

descriptor_log_

log::Writer* leveldb::VersionSet::descriptor_log_

private

dummy_versions_

Version leveldb::VersionSet::dummy_versions_

private

env_

Env* const leveldb::VersionSet::env_

private

icmp_

const InternalKeyComparator leveldb::VersionSet::icmp_

private

last_sequence_

uint64_t leveldb::VersionSet::last_sequence_

private

log_number_

uint64_t leveldb::VersionSet::log_number_

private

manifest_file_number_

uint64_t leveldb::VersionSet::manifest_file_number_

private

next_file_number_

uint64_t leveldb::VersionSet::next_file_number_

private

options_

const Options* const leveldb::VersionSet::options_

private

prev_log_number_

uint64_t leveldb::VersionSet::prev_log_number_

private

table_cache_

TableCache* const leveldb::VersionSet::table_cache_

private

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

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