Inheritance diagram for TxIndex::DB:

Public Member Functions
	DB (size_t n_cache_size, bool f_memory=false, bool f_wipe=false)

bool	ReadTxPos (const uint256 &txid, CDiskTxPos &pos) const

bool	WriteTxs (const std::vector< std::pair< uint256, CDiskTxPos >> &v_pos)
	Write a batch of transaction positions to the DB. More...

bool	MigrateData (CBlockTreeDB &block_tree_db, const CBlockLocator &best_locator)

Public Member Functions inherited from BaseIndex::DB
	DB (const fs::path &path, size_t n_cache_size, bool f_memory=false, bool f_wipe=false, bool f_obfuscate=false)

bool	ReadBestBlock (CBlockLocator &locator) const
	Read block locator of the chain that the txindex is in sync with. More...

void	WriteBestBlock (CDBBatch &batch, const CBlockLocator &locator)
	Write block locator of the chain that the txindex is in sync with. More...

Public Member Functions inherited from CDBWrapper
	CDBWrapper (const fs::path &path, size_t nCacheSize, bool fMemory=false, bool fWipe=false, bool obfuscate=false)

	~CDBWrapper ()

	CDBWrapper (const CDBWrapper &)=delete

CDBWrapper &	operator= (const CDBWrapper &)=delete

template<typename K , typename V >
bool	Read (const K &key, V &value) const

template<typename K , typename V >
bool	Write (const K &key, const V &value, bool fSync=false)

template<typename K >
bool	Exists (const K &key) const

template<typename K >
bool	Erase (const K &key, bool fSync=false)

bool	WriteBatch (CDBBatch &batch, bool fSync=false)

size_t	DynamicMemoryUsage () const

bool	Flush ()

bool	Sync ()

CDBIterator *	NewIterator ()

bool	IsEmpty ()

template<typename K >
size_t	EstimateSize (const K &key_begin, const K &key_end) const

template<typename K >
void	CompactRange (const K &key_begin, const K &key_end) const

Detailed Description

Access to the txindex database (indexes/txindex/)

The database stores a block locator of the chain the database is synced to so that the TxIndex can efficiently determine the point it last stopped at. A locator is used instead of a simple hash of the chain tip because blocks and block index entries may not be flushed to disk until after this database is updated.

Constructor & Destructor Documentation

◆ DB()

TxIndex::DB::DB	(	size_t	n_cache_size,
		bool	f_memory = `false`,
		bool	f_wipe = `false`
	)

explicit

Member Function Documentation

◆ MigrateData()

bool TxIndex::DB::MigrateData	(	CBlockTreeDB &	block_tree_db,
		const CBlockLocator &	best_locator
	)

Migrate txindex data from the block tree DB, where it may be for older nodes that have not been upgraded yet to the new database.

◆ ReadTxPos()

bool TxIndex::DB::ReadTxPos	(	const uint256 &	txid,
		CDiskTxPos &	pos
	)		const

Read the disk location of the transaction data with the given hash. Returns false if the transaction hash is not indexed.

◆ WriteTxs()

bool TxIndex::DB::WriteTxs ( const std::vector< std::pair< uint256, CDiskTxPos >> & v_pos )

Write a batch of transaction positions to the DB.

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

src/index/txindex.cpp