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, fs::path filename, const DatabaseOptions &options)
	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...

fs::path	m_filename

int64_t	m_max_log_mb

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 {0}

unsigned int	nLastFlushed {0}

int64_t	nLastWalletUpdate {0}

Detailed Description

An instance of this class represents one database.

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

Definition at line 88 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,
		fs::path	filename,
		const DatabaseOptions &	options
	)

Create DB handle to real database.

Definition at line 302 of file bdb.cpp.

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◆ ~BerkeleyDatabase()

wallet::BerkeleyDatabase::~BerkeleyDatabase ( )

override

Definition at line 345 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 912 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 662 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 705 of file bdb.cpp.

◆ Filename()

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

inlineoverridevirtual

Return path to main database filename.

Implements wallet::WalletDatabase.

Definition at line 133 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 700 of file bdb.cpp.

◆ Format()

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

inlineoverridevirtual

Implements wallet::WalletDatabase.

Definition at line 135 of file bdb.h.

◆ IncrementUpdateCounter()

void wallet::BerkeleyDatabase::IncrementUpdateCounter ( )

overridevirtual

Implements wallet::WalletDatabase.

Definition at line 429 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 929 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 368 of file bdb.cpp.

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◆ PeriodicFlush()

bool wallet::BerkeleyDatabase::PeriodicFlush ( )

overridevirtual

Implements wallet::WalletDatabase.

Definition at line 634 of file bdb.cpp.

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◆ ReloadDbEnv()

void wallet::BerkeleyDatabase::ReloadDbEnv ( )

overridevirtual

Implements wallet::WalletDatabase.

Definition at line 710 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 922 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 505 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 309 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 145 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 148 of file bdb.h.

◆ m_filename

fs::path wallet::BerkeleyDatabase::m_filename

Definition at line 150 of file bdb.h.

◆ m_max_log_mb

int64_t wallet::BerkeleyDatabase::m_max_log_mb

Definition at line 151 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

◆ m_filename

◆ m_max_log_mb