BerkeleyEnvironment Class Reference

#include <db.h>

Public Types
enum	VerifyResult { VERIFY_OK , RECOVER_OK , RECOVER_FAIL }
	Verify that database file strFile is OK. More...
typedef bool(*	recoverFunc_type) (const fs::path &file_path, std::string &out_backup_filename)
typedef std::pair< std::vector< unsigned char >, std::vector< unsigned char > >	KeyValPair
	Salvage data from a file that Verify says is bad. More...

Public Member Functions
	BerkeleyEnvironment (const fs::path &env_directory)
	~BerkeleyEnvironment ()
void	Reset ()
void	MakeMock ()
bool	IsMock () const
bool	IsInitialized () const
fs::path	Directory () const
VerifyResult	Verify (const std::string &strFile, recoverFunc_type recoverFunc, std::string &out_backup_filename)
bool	Salvage (const std::string &strFile, bool fAggressive, std::vector< KeyValPair > &vResult)
bool	Open (bool retry)
void	Close ()
void	Flush (bool fShutdown)
void	CheckpointLSN (const std::string &strFile)
void	CloseDb (const std::string &strFile)
void	ReloadDbEnv ()
DbTxn *	TxnBegin (int flags=DB_TXN_WRITE_NOSYNC)

Public Attributes
std::unique_ptr< DbEnv >	dbenv
std::map< std::string, int >	mapFileUseCount
std::map< std::string, Db * >	mapDb
std::unordered_map< std::string, WalletDatabaseFileId >	m_fileids
std::condition_variable_any	m_db_in_use

Private Attributes
bool	fDbEnvInit
bool	fMockDb
std::string	strPath

Detailed Description

Definition at line 33 of file db.h.

Member Typedef Documentation

KeyValPair

typedef std::pair<std::vector<unsigned char>, std::vector<unsigned char> > BerkeleyEnvironment::KeyValPair

Salvage data from a file that Verify says is bad.

fAggressive sets the DB_AGGRESSIVE flag (see berkeley DB->verify() method documentation). Appends binary key/value pairs to vResult, returns true if successful. NOTE: reads the entire database into memory, so cannot be used for huge databases.

Definition at line 77 of file db.h.

recoverFunc_type

typedef bool(* BerkeleyEnvironment::recoverFunc_type) (const fs::path &file_path, std::string &out_backup_filename)

Definition at line 67 of file db.h.

Member Enumeration Documentation

VerifyResult

enum BerkeleyEnvironment::VerifyResult

Verify that database file strFile is OK.

If it is not, call the callback to try to recover. This must be called BEFORE strFile is opened. Returns true if strFile is OK.

Enumerator
VERIFY_OK
RECOVER_OK
RECOVER_FAIL

Definition at line 64 of file db.h.

Constructor & Destructor Documentation

BerkeleyEnvironment()

BerkeleyEnvironment::BerkeleyEnvironment ( const fs::path &  env_directory )

explicit

Definition at line 121 of file db.cpp.

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~BerkeleyEnvironment()

BerkeleyEnvironment::~BerkeleyEnvironment

(

)

Definition at line 126 of file db.cpp.

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Member Function Documentation

CheckpointLSN()

void BerkeleyEnvironment::CheckpointLSN

(

const std::string &

strFile

)

Definition at line 437 of file db.cpp.

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Close()

void BerkeleyEnvironment::Close

(

)

Definition at line 90 of file db.cpp.

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CloseDb()

void BerkeleyEnvironment::CloseDb

(

const std::string &

strFile

)

Definition at line 562 of file db.cpp.

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Directory()

fs::path BerkeleyEnvironment::Directory ( ) const

inline

Definition at line 56 of file db.h.

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Flush()

void BerkeleyEnvironment::Flush

(

bool

fShutdown

)

Definition at line 691 of file db.cpp.

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IsInitialized()

bool BerkeleyEnvironment::IsInitialized ( ) const

inline

Definition at line 55 of file db.h.

IsMock()

bool BerkeleyEnvironment::IsMock ( ) const

inline

Definition at line 54 of file db.h.

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MakeMock()

void BerkeleyEnvironment::MakeMock

(

)

Definition at line 205 of file db.cpp.

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Open()

bool BerkeleyEnvironment::Open

(

bool

retry

)

debug

Definition at line 131 of file db.cpp.

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ReloadDbEnv()

void BerkeleyEnvironment::ReloadDbEnv

(

)

Definition at line 576 of file db.cpp.

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Reset()

void BerkeleyEnvironment::Reset

(

)

Definition at line 114 of file db.cpp.

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Salvage()

bool BerkeleyEnvironment::Salvage	(	const std::string &	strFile,
		bool	fAggressive,
		std::vector< KeyValPair > &	vResult
	)

Definition at line 376 of file db.cpp.

TxnBegin()

DbTxn* BerkeleyEnvironment::TxnBegin ( int  flags = DB_TXN_WRITE_NOSYNC )

inline

Definition at line 88 of file db.h.

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Verify()

BerkeleyEnvironment::VerifyResult BerkeleyEnvironment::Verify	(	const std::string &	strFile,
		recoverFunc_type	recoverFunc,
		std::string &	out_backup_filename
	)

Definition at line 237 of file db.cpp.

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Member Data Documentation

dbenv

std::unique_ptr<DbEnv> BerkeleyEnvironment::dbenv

Definition at line 43 of file db.h.

fDbEnvInit

bool BerkeleyEnvironment::fDbEnvInit

private

Definition at line 36 of file db.h.

fMockDb

bool BerkeleyEnvironment::fMockDb

private

Definition at line 37 of file db.h.

m_db_in_use

std::condition_variable_any BerkeleyEnvironment::m_db_in_use

Definition at line 47 of file db.h.

m_fileids

std::unordered_map<std::string, WalletDatabaseFileId> BerkeleyEnvironment::m_fileids

Definition at line 46 of file db.h.

mapDb

std::map<std::string, Db*> BerkeleyEnvironment::mapDb

Definition at line 45 of file db.h.

mapFileUseCount

std::map<std::string, int> BerkeleyEnvironment::mapFileUseCount

Definition at line 44 of file db.h.

strPath

std::string BerkeleyEnvironment::strPath

private

Definition at line 40 of file db.h.

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

• src/wallet/db.h
• src/wallet/db.cpp