#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 bool(*	recoverFunc_type) (const std::string &strFile, 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
	CDBEnv ()

	~CDBEnv ()

void	Reset ()

void	MakeMock ()

bool	IsMock () 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 (const fs::path &path)

void	Close ()

void	Flush (bool fShutdown)

void	CheckpointLSN (const std::string &strFile)

void	CloseDb (const std::string &strFile)

DbTxn *	TxnBegin (int flags=DB_TXN_WRITE_NOSYNC)

Public Attributes
CCriticalSection	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 26 of file db.h.

Member Typedef Documentation

typedef std::pair<std::vector<unsigned char>, std::vector<unsigned char> > CDBEnv::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 68 of file db.h.

typedef bool(* CDBEnv::recoverFunc_type) (const std::string &strFile, std::string &out_backup_filename)

Definition at line 59 of file db.h.

Member Enumeration Documentation

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 56 of file db.h.

Constructor & Destructor Documentation

CDBEnv::CDBEnv ( )

Definition at line 84 of file db.cpp.

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CDBEnv::~CDBEnv ( )

Definition at line 89 of file db.cpp.

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