#include <dbwrapper.h>

Inheritance diagram for CDBWrapper:

Collaboration diagram for CDBWrapper:

Public Member Functions
	CDBWrapper (const DBParams &params)

	~CDBWrapper ()

	CDBWrapper (const CDBWrapper &)=delete

CDBWrapper &	operator= (const CDBWrapper &)=delete

template<typename K , typename V >
bool	Read (const K &key, V &value) const

template<typename K , typename V >
bool	Write (const K &key, const V &value, bool fSync=false)

std::optional< fs::path >	StoragePath ()

template<typename K >
bool	Exists (const K &key) const

template<typename K >
bool	Erase (const K &key, bool fSync=false)

bool	WriteBatch (CDBBatch &batch, bool fSync=false)

size_t	DynamicMemoryUsage () const

CDBIterator *	NewIterator ()

bool	IsEmpty ()
	Return true if the database managed by this class contains no entries. More...

template<typename K >
size_t	EstimateSize (const K &key_begin, const K &key_end) const

Private Member Functions
std::vector< unsigned char >	CreateObfuscateKey () const
	Returns a string (consisting of 8 random bytes) suitable for use as an obfuscating XOR key. More...

std::optional< std::string >	ReadImpl (std::span< const std::byte > key) const

bool	ExistsImpl (std::span< const std::byte > key) const

size_t	EstimateSizeImpl (std::span< const std::byte > key1, std::span< const std::byte > key2) const

auto &	DBContext () const LIFETIMEBOUND

Private Attributes
std::unique_ptr< LevelDBContext >	m_db_context
	holds all leveldb-specific fields of this class More...

std::string	m_name
	the name of this database More...

std::vector< unsigned char >	obfuscate_key
	a key used for optional XOR-obfuscation of the database More...

const fs::path	m_path
	path to filesystem storage More...

bool	m_is_memory
	whether or not the database resides in memory More...

Static Private Attributes
static const std::string	OBFUSCATE_KEY_KEY
	the key under which the obfuscation key is stored More...

static const unsigned int	OBFUSCATE_KEY_NUM_BYTES = 8
	the length of the obfuscate key in number of bytes More...

Friends
const std::vector< unsigned char > &	dbwrapper_private::GetObfuscateKey (const CDBWrapper &w)

Detailed Description

Definition at line 180 of file dbwrapper.h.

Constructor & Destructor Documentation

◆ CDBWrapper() [1/2]

CDBWrapper::CDBWrapper ( const DBParams & params )

Definition at line 215 of file dbwrapper.cpp.

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◆ ~CDBWrapper()

CDBWrapper::~CDBWrapper ( )

Definition at line 271 of file dbwrapper.cpp.

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◆ CDBWrapper() [2/2]

CDBWrapper::CDBWrapper ( const CDBWrapper & )

delete

Member Function Documentation

◆ CreateObfuscateKey()

std::vector< unsigned char > CDBWrapper::CreateObfuscateKey ( ) const

private

Returns a string (consisting of 8 random bytes) suitable for use as an obfuscating XOR key.

Definition at line 325 of file dbwrapper.cpp.

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◆ DBContext()

auto & CDBWrapper::DBContext ( ) const

inlineprivate

Definition at line 210 of file dbwrapper.h.

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◆ DynamicMemoryUsage()

size_t CDBWrapper::DynamicMemoryUsage ( ) const

Definition at line 302 of file dbwrapper.cpp.

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◆ Erase()

template<typename K >

bool CDBWrapper::Erase	(	const K &	key,
		bool	fSync = `false`
	)

inline

Definition at line 265 of file dbwrapper.h.

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◆ EstimateSize()

template<typename K >

size_t CDBWrapper::EstimateSize	(	const K &	key_begin,
		const K &	key_end
	)		const

inline

Definition at line 285 of file dbwrapper.h.

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◆ EstimateSizeImpl()

size_t CDBWrapper::EstimateSizeImpl	(	std::span< const std::byte >	key1,
		std::span< const std::byte >	key2
	)		const

private

Definition at line 361 of file dbwrapper.cpp.

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◆ Exists()

template<typename K >

bool CDBWrapper::Exists ( const K & key ) const

inline

Definition at line 256 of file dbwrapper.h.

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◆ ExistsImpl()

bool CDBWrapper::ExistsImpl ( std::span< const std::byte > key ) const

private

Definition at line 346 of file dbwrapper.cpp.

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◆ IsEmpty()

bool CDBWrapper::IsEmpty ( )

Return true if the database managed by this class contains no entries.

Definition at line 371 of file dbwrapper.cpp.

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◆ NewIterator()

CDBIterator * CDBWrapper::NewIterator ( )

Definition at line 387 of file dbwrapper.cpp.

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◆ operator=()

CDBWrapper & CDBWrapper::operator= ( const CDBWrapper & )

delete

◆ Read()

template<typename K , typename V >

bool CDBWrapper::Read	(	const K &	key,
		V &	value
	)		const

inline

Definition at line 220 of file dbwrapper.h.

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◆ ReadImpl()

std::optional< std::string > CDBWrapper::ReadImpl ( std::span< const std::byte > key ) const

private

Definition at line 332 of file dbwrapper.cpp.

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◆ StoragePath()

std::optional< fs::path > CDBWrapper::StoragePath ( )

inline

Returns: filesystem path to the on-disk data.

Definition at line 248 of file dbwrapper.h.

◆ Write()

template<typename K , typename V >

bool CDBWrapper::Write	(	const K &	key,
		const V &	value,
		bool	fSync = `false`
	)

inline

Definition at line 240 of file dbwrapper.h.

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◆ WriteBatch()

bool CDBWrapper::WriteBatch	(	CDBBatch &	batch,
		bool	fSync = `false`
	)

Definition at line 285 of file dbwrapper.cpp.

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Friends And Related Function Documentation

◆ dbwrapper_private::GetObfuscateKey

const std::vector< unsigned char > & dbwrapper_private::GetObfuscateKey ( const CDBWrapper & w )

friend

Member Data Documentation

◆ m_db_context

std::unique_ptr<LevelDBContext> CDBWrapper::m_db_context

private

holds all leveldb-specific fields of this class

Definition at line 185 of file dbwrapper.h.

◆ m_is_memory

bool CDBWrapper::m_is_memory

private

whether or not the database resides in memory

Definition at line 205 of file dbwrapper.h.

◆ m_name

std::string CDBWrapper::m_name

private

the name of this database

Definition at line 188 of file dbwrapper.h.

◆ m_path

const fs::path CDBWrapper::m_path

private

path to filesystem storage

Definition at line 202 of file dbwrapper.h.

◆ obfuscate_key

std::vector<unsigned char> CDBWrapper::obfuscate_key

private

a key used for optional XOR-obfuscation of the database

Definition at line 191 of file dbwrapper.h.

◆ OBFUSCATE_KEY_KEY

const std::string CDBWrapper::OBFUSCATE_KEY_KEY

staticprivate

the key under which the obfuscation key is stored

Definition at line 194 of file dbwrapper.h.

◆ OBFUSCATE_KEY_NUM_BYTES

const unsigned int CDBWrapper::OBFUSCATE_KEY_NUM_BYTES = 8

staticprivate

the length of the obfuscate key in number of bytes

Definition at line 197 of file dbwrapper.h.

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

src/dbwrapper.h
src/dbwrapper.cpp

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ CDBWrapper() [1/2]

◆ ~CDBWrapper()

◆ CDBWrapper() [2/2]

Member Function Documentation

◆ CreateObfuscateKey()

◆ DBContext()

◆ DynamicMemoryUsage()

◆ Erase()

◆ EstimateSize()

◆ EstimateSizeImpl()

◆ Exists()

◆ ExistsImpl()

◆ IsEmpty()

◆ NewIterator()

◆ operator=()

◆ Read()

◆ ReadImpl()

◆ StoragePath()

◆ Write()

◆ WriteBatch()

Friends And Related Function Documentation

◆ dbwrapper_private::GetObfuscateKey

Member Data Documentation

◆ m_db_context

◆ m_is_memory

◆ m_name

◆ m_path

◆ obfuscate_key

◆ OBFUSCATE_KEY_KEY

◆ OBFUSCATE_KEY_NUM_BYTES