CDBEnv Class Reference

#include <db.h>

Collaboration diagram for CDBEnv:

Public Types
enum	VerifyResult { VERIFY_OK, RECOVER_OK, RECOVER_FAIL }
	Verify that database file strFile is OK. More...
typedef std::pair< std::vector< unsigned char >, std::vector< unsigned char > >	KeyValPair

Public Member Functions
	CDBEnv ()
	~CDBEnv ()
void	Reset ()
void	MakeMock ()
bool	IsMock ()
VerifyResult	Verify (std::string strFile, bool(*recoverFunc)(CDBEnv &dbenv, std::string strFile))
bool	Compact (const std::string &strFile)
	Salvage data from a file that Verify says is bad. More...
bool	Salvage (std::string strFile, bool fAggressive, std::vector< KeyValPair > &vResult)
bool	Open (const fs::path &path)
void	Close ()
void	Flush (bool fShutdown)
void	CheckpointLSN (const std::string &strFile)
void	CloseDb (const std::string &strFile)
bool	RemoveDb (const std::string &strFile)
DbTxn *	TxnBegin (int flags=DB_TXN_WRITE_NOSYNC)

Public Attributes
RecursiveMutex	cs_db
DbEnv *	dbenv
std::map< std::string, int >	mapFileUseCount
std::map< std::string, Db * >	mapDb

Private Member Functions
void	EnvShutdown ()

Private Attributes
bool	fDbEnvInit
bool	fMockDb
std::string	strPath

Detailed Description

Definition at line 28 of file db.h.

Member Typedef Documentation

KeyValPair

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

Definition at line 70 of file db.h.

Member Enumeration Documentation

VerifyResult

enum CDBEnv::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 58 of file db.h.

Constructor & Destructor Documentation

CDBEnv()

CDBEnv::CDBEnv

(

)

Definition at line 52 of file db.cpp.

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~CDBEnv()

CDBEnv::~CDBEnv

(

)

Definition at line 57 of file db.cpp.

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Member Function Documentation

CheckpointLSN()

void CDBEnv::CheckpointLSN

(

const std::string &

strFile

)

Definition at line 264 of file db.cpp.

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Close()

void CDBEnv::Close

(

)

Definition at line 64 of file db.cpp.

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CloseDb()

void CDBEnv::CloseDb

(

const std::string &

strFile

)

Definition at line 364 of file db.cpp.

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Compact()

bool CDBEnv::Compact

(

const std::string &

strFile

)

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 165 of file db.cpp.

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EnvShutdown()

void CDBEnv::EnvShutdown ( )

private

Definition at line 31 of file db.cpp.

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Flush()

void CDBEnv::Flush

(

bool

fShutdown

)

Definition at line 473 of file db.cpp.

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IsMock()

bool CDBEnv::IsMock ( )

inline

Definition at line 50 of file db.h.

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MakeMock()

void CDBEnv::MakeMock

(

)

Definition at line 116 of file db.cpp.

Open()

bool CDBEnv::Open

(

const fs::path &

path

)

debug

Definition at line 69 of file db.cpp.

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RemoveDb()

bool CDBEnv::RemoveDb

(

const std::string &

strFile

)

Definition at line 378 of file db.cpp.

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Reset()

void CDBEnv::Reset

(

)

Definition at line 44 of file db.cpp.

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Salvage()

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

Definition at line 214 of file db.cpp.

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TxnBegin()

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

inline

Definition at line 81 of file db.h.

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Verify()

CDBEnv::VerifyResult CDBEnv::Verify	(	std::string	strFile,
		bool(*)(CDBEnv &dbenv, std::string strFile)	recoverFunc
	)

Definition at line 148 of file db.cpp.

Member Data Documentation

cs_db

RecursiveMutex CDBEnv::cs_db

mutable

Definition at line 40 of file db.h.

dbenv

DbEnv* CDBEnv::dbenv

Definition at line 41 of file db.h.

fDbEnvInit

bool CDBEnv::fDbEnvInit

private

Definition at line 31 of file db.h.

fMockDb

bool CDBEnv::fMockDb

private

Definition at line 32 of file db.h.

mapDb

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

Definition at line 43 of file db.h.

mapFileUseCount

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

Definition at line 42 of file db.h.

strPath

std::string CDBEnv::strPath

private

Definition at line 35 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