SQLiteDatabase Class Reference

An instance of this class represents one SQLite3 database. More...

#include <sqlite.h>

Inheritance diagram for SQLiteDatabase:

Collaboration diagram for SQLiteDatabase:

Public Member Functions
	SQLiteDatabase ()=delete
	SQLiteDatabase (const fs::path &dir_path, const fs::path &file_path, bool mock=false)
	Create DB handle to real database.
	~SQLiteDatabase ()
bool	Verify (bilingual_str &error)
void	Open () override
	Open the database if it is not already opened.
void	Close () override
	Close the database.
void	AddRef () override
	Indicate the a new database user has began using the database.
void	RemoveRef () override
	Indicate that database user has stopped using the database and that it could be flushed or closed.
bool	Rewrite (const char *skip=nullptr) override
	Rewrite the entire database on disk.
bool	Backup (const std::string &dest) const override
	Back up the entire database to a file.
void	Flush () override
	No-ops.
bool	PeriodicFlush () override
void	ReloadDbEnv () override
void	IncrementUpdateCounter () override
std::string	Filename () override
	Return path to main database file for logs and error messages.
std::unique_ptr< DatabaseBatch >	MakeBatch (bool flush_on_close=true) override
	Make a SQLiteBatch connected to this database.
Public Member Functions inherited from WalletDatabase
	WalletDatabase ()
	Create dummy DB handle.
virtual	~WalletDatabase ()

Public Attributes
sqlite3 *	m_db {nullptr}
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.
std::atomic< unsigned int >	nUpdateCounter
unsigned int	nLastSeen
unsigned int	nLastFlushed
int64_t	nLastWalletUpdate

Private Member Functions
void	Cleanup () noexcept

Private Attributes
const bool	m_mock {false}
const std::string	m_dir_path
const std::string	m_file_path

Detailed Description

An instance of this class represents one SQLite3 database.

Definition at line 55 of file sqlite.h.

Constructor & Destructor Documentation

SQLiteDatabase() [1/2]

SQLiteDatabase::SQLiteDatabase ( )

delete

SQLiteDatabase() [2/2]

SQLiteDatabase::SQLiteDatabase	(	const fs::path &	dir_path,
		const fs::path &	file_path,
		bool	mock = false
	)

Create DB handle to real database.

Definition at line 32 of file sqlite.cpp.

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~SQLiteDatabase()

SQLiteDatabase::~SQLiteDatabase

(

)

Definition at line 118 of file sqlite.cpp.

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Member Function Documentation

AddRef()

void SQLiteDatabase::AddRef ( )

inlineoverridevirtual

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

Increments m_refcount

Implements WalletDatabase.

Definition at line 83 of file sqlite.h.

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Backup()

bool SQLiteDatabase::Backup ( const std::string &  dest ) const

overridevirtual

Back up the entire database to a file.

Implements WalletDatabase.

Definition at line 291 of file sqlite.cpp.

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Cleanup()

void SQLiteDatabase::Cleanup ( )

privatenoexcept

Definition at line 122 of file sqlite.cpp.

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Close()

void SQLiteDatabase::Close ( )

overridevirtual

Close the database.

Implements WalletDatabase.

Definition at line 318 of file sqlite.cpp.

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Filename()

std::string SQLiteDatabase::Filename ( )

inlineoverridevirtual

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

Implements WalletDatabase.

Definition at line 108 of file sqlite.h.

Flush()

void SQLiteDatabase::Flush ( )

inlineoverridevirtual

No-ops.

SQLite always flushes everything to the database file after each transaction (each Read/Write/Erase that we do is its own transaction unless we called TxnBegin) so there is no need to have Flush or Periodic Flush.

There is no DB env to reload, so ReloadDbEnv has nothing to do

Implements WalletDatabase.

Definition at line 102 of file sqlite.h.

IncrementUpdateCounter()

void SQLiteDatabase::IncrementUpdateCounter ( )

inlineoverridevirtual

Implements WalletDatabase.

Definition at line 106 of file sqlite.h.

MakeBatch()

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

overridevirtual

Make a SQLiteBatch connected to this database.

Implements WalletDatabase.

Definition at line 328 of file sqlite.cpp.

Open()

void SQLiteDatabase::Open ( )

overridevirtual

Open the database if it is not already opened.

Implements WalletDatabase.

Definition at line 179 of file sqlite.cpp.

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PeriodicFlush()

bool SQLiteDatabase::PeriodicFlush ( )

inlineoverridevirtual

Implements WalletDatabase.

Definition at line 103 of file sqlite.h.

ReloadDbEnv()

void SQLiteDatabase::ReloadDbEnv ( )

inlineoverridevirtual

Implements WalletDatabase.

Definition at line 104 of file sqlite.h.

RemoveRef()

void SQLiteDatabase::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 84 of file sqlite.h.

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Rewrite()

bool SQLiteDatabase::Rewrite ( const char *  skip = nullptr )

overridevirtual

Rewrite the entire database on disk.

Implements WalletDatabase.

Definition at line 284 of file sqlite.cpp.

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Verify()

bool SQLiteDatabase::Verify

(

bilingual_str &

error

)

Definition at line 135 of file sqlite.cpp.

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Member Data Documentation

m_db

sqlite3* SQLiteDatabase::m_db {nullptr}

Definition at line 114 of file sqlite.h.

m_dir_path

const std::string SQLiteDatabase::m_dir_path

private

Definition at line 59 of file sqlite.h.

m_file_path

const std::string SQLiteDatabase::m_file_path

private

Definition at line 61 of file sqlite.h.

m_mock

const bool SQLiteDatabase::m_mock {false}

private

Definition at line 57 of file sqlite.h.

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

• src/wallet/sqlite.h
• src/wallet/sqlite.cpp