DummyDatabase Class Reference

A dummy WalletDatabase that does nothing and never fails. More...

#include <db.h>

Inheritance diagram for DummyDatabase:

Collaboration diagram for DummyDatabase:

Public Member Functions
void	Open () override
	Open the database if it is not already opened. More...
void	AddRef () override
	Indicate the a new database user has began 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	Rewrite (const char *pszSkip=nullptr) override
	Rewrite the entire database on disk, with the exception of key pszSkip if non-zero. More...
bool	Backup (const std::string &strDest) const override
	Back up the entire database to a file. More...
void	Close () override
	Flush to the database file and close the database. More...
void	Flush () override
	Make sure all changes are flushed to database file. More...
bool	PeriodicFlush () override
void	IncrementUpdateCounter () override
void	ReloadDbEnv () override
std::string	Filename () override
	Return path to main database file for logs and error messages. More...
std::unique_ptr< DatabaseBatch >	MakeBatch (bool flush_on_close=true) override
	Make a DatabaseBatch connected to this database. More...
Public Member Functions inherited from WalletDatabase
	WalletDatabase ()
	Create dummy DB handle. More...
virtual	~WalletDatabase ()
virtual void	Open ()=0
	Open the database if it is not already opened. More...
virtual void	AddRef ()=0
	Indicate the a new database user has began using the database. More...
virtual void	RemoveRef ()=0
	Indicate that database user has stopped using the database and that it could be flushed or closed. More...
virtual bool	Rewrite (const char *pszSkip=nullptr)=0
	Rewrite the entire database on disk, with the exception of key pszSkip if non-zero. More...
virtual bool	Backup (const std::string &strDest) const =0
	Back up the entire database to a file. More...
virtual void	Flush ()=0
	Make sure all changes are flushed to database file. More...
virtual void	Close ()=0
	Flush to the database file and close the database. More...
virtual bool	PeriodicFlush ()=0
virtual void	IncrementUpdateCounter ()=0
virtual void	ReloadDbEnv ()=0
virtual std::string	Filename ()=0
	Return path to main database file for logs and error messages. More...
virtual std::unique_ptr< DatabaseBatch >	MakeBatch (bool flush_on_close=true)=0
	Make a DatabaseBatch connected to this database. More...

Additional Inherited Members
Public Attributes inherited from 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

A dummy WalletDatabase that does nothing and never fails.

Only used by unit tests.

Definition at line 198 of file db.h.

Member Function Documentation

AddRef()

void DummyDatabase::AddRef ( )

inlineoverridevirtual

Indicate the a new database user has began using the database.

Increments m_refcount

Implements WalletDatabase.

Definition at line 201 of file db.h.

Backup()

bool DummyDatabase::Backup ( const std::string &  strDest ) const

inlineoverridevirtual

Back up the entire database to a file.

Implements WalletDatabase.

Definition at line 204 of file db.h.

Close()

void DummyDatabase::Close ( )

inlineoverridevirtual

Flush to the database file and close the database.

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

Implements WalletDatabase.

Definition at line 205 of file db.h.

Filename()

std::string DummyDatabase::Filename ( )

inlineoverridevirtual

Return path to main database file for logs and error messages.

Implements WalletDatabase.

Definition at line 210 of file db.h.

Flush()

void DummyDatabase::Flush ( )

inlineoverridevirtual

Make sure all changes are flushed to database file.

Implements WalletDatabase.

Definition at line 206 of file db.h.

IncrementUpdateCounter()

void DummyDatabase::IncrementUpdateCounter ( )

inlineoverridevirtual

Implements WalletDatabase.

Definition at line 208 of file db.h.

MakeBatch()

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

inlineoverridevirtual

Make a DatabaseBatch connected to this database.

Implements WalletDatabase.

Definition at line 212 of file db.h.

Open()

void DummyDatabase::Open ( )

inlineoverridevirtual

Open the database if it is not already opened.

Implements WalletDatabase.

Definition at line 200 of file db.h.

PeriodicFlush()

bool DummyDatabase::PeriodicFlush ( )

inlineoverridevirtual

Implements WalletDatabase.

Definition at line 207 of file db.h.

ReloadDbEnv()

void DummyDatabase::ReloadDbEnv ( )

inlineoverridevirtual

Implements WalletDatabase.

Definition at line 209 of file db.h.

RemoveRef()

void DummyDatabase::RemoveRef ( )

inlineoverridevirtual

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

Decrement m_refcount

Implements WalletDatabase.

Definition at line 202 of file db.h.

Rewrite()

bool DummyDatabase::Rewrite ( const char *  pszSkip = nullptr )

inlineoverridevirtual

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

Implements WalletDatabase.

Definition at line 203 of file db.h.

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

• /work/src/wallet/db.h