An instance of this class represents one database. More...

#include <bdb.h>

Inheritance diagram for wallet::BerkeleyDatabase:

Collaboration diagram for wallet::BerkeleyDatabase:

Public Member Functions
	BerkeleyDatabase ()=delete

	BerkeleyDatabase (std::shared_ptr< BerkeleyEnvironment > env, std::string filename)
	Create DB handle to real database. More...

	~BerkeleyDatabase () override

void	Open () override
	Open the database if it is not already opened. More...

bool	Rewrite (const char *pszSkip=nullptr) override
	Rewrite the entire database on disk, with the exception of key pszSkip if non-zero. More...

void	AddRef () override
	Indicate that a new database user has begun using the database. More...

void	RemoveRef () override
	Indicate that database user has stopped using the database and that it could be flushed or closed. More...

bool	Backup (const std::string &strDest) const override
	Back up the entire database to a file. More...

void	Flush () override
	Make sure all changes are flushed to database file. More...

void	Close () override
	Flush to the database file and close the database. More...

bool	PeriodicFlush () override

void	IncrementUpdateCounter () override

void	ReloadDbEnv () override

bool	Verify (bilingual_str &error)
	Verifies the environment and database file. More...

std::string	Filename () override
	Return path to main database filename. More...

std::string	Format () override

std::unique_ptr< DatabaseBatch >	MakeBatch (bool flush_on_close=true) override
	Make a BerkeleyBatch connected to this database. More...

Public Member Functions inherited from wallet::WalletDatabase
	WalletDatabase ()
	Create dummy DB handle. More...

virtual	~WalletDatabase ()

Public Attributes
std::shared_ptr< BerkeleyEnvironment >	env
	Pointer to shared database environment. More...

std::unique_ptr< Db >	m_db
	Database pointer. More...

std::string	strFile

Public Attributes inherited from wallet::WalletDatabase
std::atomic< int >	m_refcount {0}
	Counts the number of active database users to be sure that the database is not closed while someone is using it. More...

std::atomic< unsigned int >	nUpdateCounter

unsigned int	nLastSeen

unsigned int	nLastFlushed

int64_t	nLastWalletUpdate

Detailed Description

An instance of this class represents one database.

For BerkeleyDB this is just a (env, strFile) tuple.

Definition at line 95 of file bdb.h.

Constructor & Destructor Documentation

◆ BerkeleyDatabase() [1/2]

wallet::BerkeleyDatabase::BerkeleyDatabase ( )

delete

◆ BerkeleyDatabase() [2/2]

wallet::BerkeleyDatabase::BerkeleyDatabase	(	std::shared_ptr< BerkeleyEnvironment >	env,
		std::string	filename
	)

inline

Create DB handle to real database.

Definition at line 101 of file bdb.h.

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◆ ~BerkeleyDatabase()

wallet::BerkeleyDatabase::~BerkeleyDatabase ( )

override

Definition at line 294 of file bdb.cpp.

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Member Function Documentation

◆ AddRef()

void wallet::BerkeleyDatabase::AddRef ( )

overridevirtual

Indicate that a new database user has begun using the database.

Implements wallet::WalletDatabase.

Definition at line 804 of file bdb.cpp.

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◆ Backup()

bool wallet::BerkeleyDatabase::Backup ( const std::string & strDest ) const

overridevirtual

Back up the entire database to a file.

Implements wallet::WalletDatabase.

Definition at line 604 of file bdb.cpp.

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◆ Close()

void wallet::BerkeleyDatabase::Close ( )

overridevirtual

Flush to the database file and close the database.

Also close the environment if no other databases are open in it.

Implements wallet::WalletDatabase.

Definition at line 646 of file bdb.cpp.

◆ Filename()

std::string wallet::BerkeleyDatabase::Filename ( )

inlineoverridevirtual

Return path to main database filename.

Implements wallet::WalletDatabase.

Definition at line 145 of file bdb.h.

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◆ Flush()

void wallet::BerkeleyDatabase::Flush ( )

overridevirtual

Make sure all changes are flushed to database file.

Implements wallet::WalletDatabase.

Definition at line 641 of file bdb.cpp.

◆ Format()

std::string wallet::BerkeleyDatabase::Format ( )

inlineoverridevirtual

Implements wallet::WalletDatabase.

Definition at line 147 of file bdb.h.

◆ IncrementUpdateCounter()

void wallet::BerkeleyDatabase::IncrementUpdateCounter ( )

overridevirtual

Implements wallet::WalletDatabase.

Definition at line 383 of file bdb.cpp.

◆ MakeBatch()

std::unique_ptr< DatabaseBatch > wallet::BerkeleyDatabase::MakeBatch ( bool flush_on_close = true )

overridevirtual

Make a BerkeleyBatch connected to this database.

Implements wallet::WalletDatabase.

Definition at line 821 of file bdb.cpp.

◆ Open()

void wallet::BerkeleyDatabase::Open ( )

overridevirtual

Open the database if it is not already opened.

Implements wallet::WalletDatabase.

Definition at line 323 of file bdb.cpp.

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◆ PeriodicFlush()

bool wallet::BerkeleyDatabase::PeriodicFlush ( )

overridevirtual

Implements wallet::WalletDatabase.

Definition at line 577 of file bdb.cpp.

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◆ ReloadDbEnv()

void wallet::BerkeleyDatabase::ReloadDbEnv ( )

overridevirtual

Implements wallet::WalletDatabase.

Definition at line 651 of file bdb.cpp.

◆ RemoveRef()

void wallet::BerkeleyDatabase::RemoveRef ( )

overridevirtual

Indicate that database user has stopped using the database and that it could be flushed or closed.

Implements wallet::WalletDatabase.

Definition at line 814 of file bdb.cpp.

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◆ Rewrite()

bool wallet::BerkeleyDatabase::Rewrite ( const char * pszSkip = nullptr )

overridevirtual

Rewrite the entire database on disk, with the exception of key pszSkip if non-zero.

Implements wallet::WalletDatabase.

Definition at line 450 of file bdb.cpp.

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◆ Verify()

bool wallet::BerkeleyDatabase::Verify ( bilingual_str & error )

Verifies the environment and database file.

Definition at line 259 of file bdb.cpp.

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Member Data Documentation

◆ env

std::shared_ptr<BerkeleyEnvironment> wallet::BerkeleyDatabase::env

Pointer to shared database environment.

Normally there is only one BerkeleyDatabase object per BerkeleyEnvivonment, but in the special, backwards compatible case where multiple wallet BDB data files are loaded from the same directory, this will point to a shared instance that gets freed when the last data file is closed.

Definition at line 157 of file bdb.h.

◆ m_db

std::unique_ptr<Db> wallet::BerkeleyDatabase::m_db

Database pointer.

This is initialized lazily and reset during flushes, so it can be null.

Definition at line 160 of file bdb.h.

◆ strFile

std::string wallet::BerkeleyDatabase::strFile

Definition at line 162 of file bdb.h.

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

src/wallet/bdb.h
src/wallet/bdb.cpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ BerkeleyDatabase() [1/2]

◆ BerkeleyDatabase() [2/2]

◆ ~BerkeleyDatabase()

Member Function Documentation

◆ AddRef()

◆ Backup()

◆ Close()

◆ Filename()

◆ Flush()

◆ Format()

◆ IncrementUpdateCounter()

◆ MakeBatch()

◆ Open()

◆ PeriodicFlush()

◆ ReloadDbEnv()

◆ RemoveRef()

◆ Rewrite()

◆ Verify()

Member Data Documentation

◆ env

◆ m_db

◆ strFile