CDB Class Reference

RAII class that provides access to a Berkeley database. More...

#include <db.h>

Collaboration diagram for CDB:

Public Member Functions
	CDB (CWalletDBWrapper &dbw, const char *pszMode="r+", bool fFlushOnCloseIn=true)
	~CDB ()
	CDB (const CDB &)=delete
CDB &	operator= (const CDB &)=delete
void	Flush ()
void	Close ()
template<typename K , typename T >
bool	Read (const K &key, T &value)
template<typename K , typename T >
bool	Write (const K &key, const T &value, bool fOverwrite=true)
template<typename K >
bool	Erase (const K &key)
template<typename K >
bool	Exists (const K &key)
Dbc *	GetCursor ()
int	ReadAtCursor (Dbc *pcursor, CDataStream &ssKey, CDataStream &ssValue, bool setRange=false)
bool	TxnBegin ()
bool	TxnCommit ()
bool	TxnAbort ()
bool	ReadVersion (int &nVersion)
bool	WriteVersion (int nVersion)

Static Public Member Functions
static bool	Recover (const std::string &filename, void *callbackDataIn, bool(*recoverKVcallback)(void *callbackData, CDataStream ssKey, CDataStream ssValue), std::string &out_backup_filename)
static bool	PeriodicFlush (CWalletDBWrapper &dbw)
static bool	VerifyEnvironment (const std::string &walletFile, const fs::path &dataDir, std::string &errorStr)
static bool	VerifyDatabaseFile (const std::string &walletFile, const fs::path &dataDir, std::string &warningStr, std::string &errorStr, CDBEnv::recoverFunc_type recoverFunc)
static bool	Rewrite (CWalletDBWrapper &dbw, const char *pszSkip=nullptr)

Protected Attributes
Db *	pdb
std::string	strFile
DbTxn *	activeTxn
bool	fReadOnly
bool	fFlushOnClose
CDBEnv *	env

Detailed Description

RAII class that provides access to a Berkeley database.

Definition at line 146 of file db.h.

Constructor & Destructor Documentation

CDB() [1/2]

CDB::CDB ( CWalletDBWrapper &  dbw, const char *  pszMode = "r+", bool  fFlushOnCloseIn = true  )

explicit

Definition at line 397 of file db.cpp.

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~CDB()

CDB::~CDB ( )

inline

Definition at line 158 of file db.h.

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CDB() [2/2]

CDB::CDB ( const CDB &  )

delete

Member Function Documentation

Close()

void CDB::Close

(

)

Definition at line 476 of file db.cpp.

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Erase()

template<typename K >

bool CDB::Erase ( const K &  key )

inline

Definition at line 241 of file db.h.

Exists()

template<typename K >

bool CDB::Exists ( const K &  key )

inline

Definition at line 263 of file db.h.

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Flush()

void CDB::Flush

(

)

Definition at line 458 of file db.cpp.

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GetCursor()

Dbc* CDB::GetCursor ( )

inline

Definition at line 282 of file db.h.

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operator=()

CDB& CDB::operator= ( const CDB &  )

delete

PeriodicFlush()

bool CDB::PeriodicFlush ( CWalletDBWrapper &  dbw )

static

Definition at line 638 of file db.cpp.

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Read()

template<typename K , typename T >

bool CDB::Read ( const K &  key, T &  value  )

inline

Definition at line 177 of file db.h.

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ReadAtCursor()

int CDB::ReadAtCursor ( Dbc *  pcursor, CDataStream &  ssKey, CDataStream &  ssValue, bool  setRange = false  )

inline

Definition at line 293 of file db.h.

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ReadVersion()

bool CDB::ReadVersion ( int &  nVersion )

inline

Definition at line 358 of file db.h.

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Recover()

bool CDB::Recover ( const std::string &  filename, void *  callbackDataIn, bool(*)(void *callbackData, CDataStream ssKey, CDataStream ssValue)  recoverKVcallback, std::string &  out_backup_filename  )

static

Definition at line 198 of file db.cpp.

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Rewrite()

bool CDB::Rewrite ( CWalletDBWrapper &  dbw, const char *  pszSkip = nullptr  )

static

Definition at line 508 of file db.cpp.

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TxnAbort()

bool CDB::TxnAbort ( )

inline

Definition at line 349 of file db.h.

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TxnBegin()

bool CDB::TxnBegin ( )

inline

Definition at line 329 of file db.h.

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TxnCommit()

bool CDB::TxnCommit ( )

inline

Definition at line 340 of file db.h.

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VerifyDatabaseFile()

bool CDB::VerifyDatabaseFile ( const std::string &  walletFile, const fs::path &  dataDir, std::string &  warningStr, std::string &  errorStr, CDBEnv::recoverFunc_type  recoverFunc  )

static

Definition at line 298 of file db.cpp.

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VerifyEnvironment()

bool CDB::VerifyEnvironment ( const std::string &  walletFile, const fs::path &  dataDir, std::string &  errorStr  )

static

Definition at line 264 of file db.cpp.

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Write()

template<typename K , typename T >

bool CDB::Write ( const K &  key, const T &  value, bool  fOverwrite = true  )

inline

Definition at line 212 of file db.h.

WriteVersion()

bool CDB::WriteVersion ( int  nVersion )

inline

Definition at line 364 of file db.h.

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Member Data Documentation

activeTxn

DbTxn* CDB::activeTxn

protected

Definition at line 151 of file db.h.

env

CDBEnv* CDB::env

protected

Definition at line 154 of file db.h.

fFlushOnClose

bool CDB::fFlushOnClose

protected

Definition at line 153 of file db.h.

fReadOnly

bool CDB::fReadOnly

protected

Definition at line 152 of file db.h.

pdb

Db* CDB::pdb

protected

Definition at line 149 of file db.h.

strFile

std::string CDB::strFile

protected

Definition at line 150 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