wallet::SQLiteDatabase Class Reference

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

#include <sqlite.h>

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Public Member Functions
	SQLiteDatabase ()=delete
	SQLiteDatabase (const fs::path &dir_path, const fs::path &file_path, const DatabaseOptions &options, 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.
bool	Rewrite () override
	Rewrite the entire database on disk.
bool	Backup (const std::string &dest) const override
	Back up the entire database to a file.
std::string	Filename () override
	Return path to main database file for logs and error messages.
std::vector< fs::path >	Files () override
	Return paths to all database created files.
std::string	Format () override
std::unique_ptr< DatabaseBatch >	MakeBatch () override
	Make a SQLiteBatch connected to this database.
bool	HasActiveTxn ()
	Return true if there is an on-going txn in this connection.
Public Member Functions inherited from wallet::WalletDatabase
	WalletDatabase ()=default
	Create dummy DB handle.
virtual	~WalletDatabase ()=default

Public Attributes
std::binary_semaphore	m_write_semaphore
sqlite3 *	m_db {nullptr}
bool	m_use_unsafe_sync
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.

Private Member Functions
void	Cleanup () noexcept EXCLUSIVE_LOCKS_REQUIRED(!g_sqlite_mutex)

Static Private Member Functions
static int g_sqlite_count	GUARDED_BY (g_sqlite_mutex)

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

Static Private Attributes
static Mutex	g_sqlite_mutex
	This mutex protects SQLite initialization and shutdown.

Detailed Description

An instance of this class represents one SQLite3 database.

Definition at line 102 of file sqlite.h.

Constructor & Destructor Documentation

SQLiteDatabase() [1/2]

wallet::SQLiteDatabase::SQLiteDatabase ( )

delete

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SQLiteDatabase() [2/2]

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

Create DB handle to real database.

Definition at line 114 of file sqlite.cpp.

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~SQLiteDatabase()

wallet::SQLiteDatabase::~SQLiteDatabase

(

)

Definition at line 167 of file sqlite.cpp.

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Member Function Documentation

Backup()

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

overridevirtual

Back up the entire database to a file.

Implements wallet::WalletDatabase.

Definition at line 343 of file sqlite.cpp.

Cleanup()

void wallet::SQLiteDatabase::Cleanup ( )

privatenoexcept

Definition at line 172 of file sqlite.cpp.

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Close()

void wallet::SQLiteDatabase::Close ( )

overridevirtual

Close the database.

Implements wallet::WalletDatabase.

Definition at line 370 of file sqlite.cpp.

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Filename()

std::string wallet::SQLiteDatabase::Filename ( )

inlineoverridevirtual

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

Implements wallet::WalletDatabase.

Definition at line 149 of file sqlite.h.

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Files()

std::vector< fs::path > wallet::SQLiteDatabase::Files ( )

inlineoverridevirtual

Return paths to all database created files.

Implements wallet::WalletDatabase.

Definition at line 151 of file sqlite.h.

Format()

std::string wallet::SQLiteDatabase::Format ( )

inlineoverridevirtual

Implements wallet::WalletDatabase.

Definition at line 158 of file sqlite.h.

GUARDED_BY()

int g_sqlite_count wallet::SQLiteDatabase::GUARDED_BY ( g_sqlite_mutex )

staticprivate

HasActiveTxn()

bool wallet::SQLiteDatabase::HasActiveTxn

(

)

Return true if there is an on-going txn in this connection.

Definition at line 379 of file sqlite.cpp.

MakeBatch()

std::unique_ptr< DatabaseBatch > wallet::SQLiteDatabase::MakeBatch ( )

overridevirtual

Make a SQLiteBatch connected to this database.

Implements wallet::WalletDatabase.

Definition at line 390 of file sqlite.cpp.

Open()

void wallet::SQLiteDatabase::Open ( )

overridevirtual

Open the database if it is not already opened.

Implements wallet::WalletDatabase.

Definition at line 244 of file sqlite.cpp.

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Rewrite()

bool wallet::SQLiteDatabase::Rewrite ( )

overridevirtual

Rewrite the entire database on disk.

Implements wallet::WalletDatabase.

Definition at line 336 of file sqlite.cpp.

Verify()

bool wallet::SQLiteDatabase::Verify

(

bilingual_str &

error

)

Definition at line 187 of file sqlite.cpp.

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Member Data Documentation

g_sqlite_mutex

Mutex wallet::SQLiteDatabase::g_sqlite_mutex

staticprivate

This mutex protects SQLite initialization and shutdown.

sqlite3_config() and sqlite3_shutdown() are not thread-safe (sqlite3_initialize() is). Concurrent threads that execute SQLiteDatabase::SQLiteDatabase() should have just one of them do the init and the rest wait for it to complete before all can proceed.

Definition at line 117 of file sqlite.h.

m_db

sqlite3* wallet::SQLiteDatabase::m_db {nullptr}

Definition at line 166 of file sqlite.h.

m_dir_path

const fs::path wallet::SQLiteDatabase::m_dir_path

private

Definition at line 107 of file sqlite.h.

m_file_path

const std::string wallet::SQLiteDatabase::m_file_path

private

Definition at line 109 of file sqlite.h.

m_mock

const bool wallet::SQLiteDatabase::m_mock {false}

private

Definition at line 105 of file sqlite.h.

m_use_unsafe_sync

bool wallet::SQLiteDatabase::m_use_unsafe_sync

Definition at line 167 of file sqlite.h.

m_write_semaphore

std::binary_semaphore wallet::SQLiteDatabase::m_write_semaphore

Definition at line 132 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