rawdb

package
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 Go to latest Published: Jun 19, 2022 License: LGPL-3.0 Imports: 18 Imported by: 0

Documentation

Overview

Package rawdb contains a collection of low level database accessors.

Index

Constants

This section is empty.

Variables

View Source 
var (
	SnapshotAccountPrefix = []byte("a") // SnapshotAccountPrefix + account hash -> account trie value
	SnapshotStoragePrefix = []byte("o") // SnapshotStoragePrefix + account hash + storage hash -> storage trie value
	CodePrefix            = []byte("c") // CodePrefix + code hash -> account code

	// Chain index prefixes (use `i` + single byte to avoid mixing data types).
	BloomBitsIndexPrefix = []byte("iB") // BloomBitsIndexPrefix is the data table of a chain indexer to track its progress

)

The fields below define the low level database schema prefixing.

Functions

func DeleteAccountSnapshot 

func DeleteAccountSnapshot(db ethdb.KeyValueWriter, hash common.Hash)

DeleteAccountSnapshot removes the snapshot entry of an account trie leaf.

func DeleteBlock 

func DeleteBlock(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

DeleteBlock removes all block data associated with a hash.

func DeleteBlockWithoutNumber 

func DeleteBlockWithoutNumber(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

DeleteBlockWithoutNumber removes all block data associated with a hash, except the hash to number mapping.

func DeleteBloombits 

func DeleteBloombits(db ethdb.Database, bit uint, from uint64, to uint64)

DeleteBloombits removes all compressed bloom bits vector belonging to the given section range and bit index.

func DeleteBody 

func DeleteBody(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

DeleteBody removes all block body data associated with a hash.

func DeleteCanonicalHash 

func DeleteCanonicalHash(db ethdb.KeyValueWriter, number uint64)

DeleteCanonicalHash removes the number to hash canonical mapping.

func DeleteCode 

func DeleteCode(db ethdb.KeyValueWriter, hash common.Hash)

DeleteCode deletes the specified contract code from the database.

func DeleteHeader 

func DeleteHeader(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

DeleteHeader removes all block header data associated with a hash.

func DeleteHeaderNumber 

func DeleteHeaderNumber(db ethdb.KeyValueWriter, hash common.Hash)

DeleteHeaderNumber removes hash->number mapping.

func DeleteOfflinePruning 

func DeleteOfflinePruning(db ethdb.KeyValueStore) error

DeleteOfflinePruning deletes any marker of the last attempt to run offline pruning.

func DeleteReceipts 

func DeleteReceipts(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

DeleteReceipts removes all receipt data associated with a block hash.

func DeleteSnapshotBlockHash 

func DeleteSnapshotBlockHash(db ethdb.KeyValueWriter)

DeleteSnapshotBlockHash deletes the hash of the block whose state is contained in the persisted snapshot. Since snapshots are not immutable, this method can be used during updates, so a crash or failure will mark the entire snapshot invalid.

func DeleteSnapshotGenerator 

func DeleteSnapshotGenerator(db ethdb.KeyValueWriter)

DeleteSnapshotGenerator deletes the serialized snapshot generator saved at the last shutdown

func DeleteSnapshotRoot 

func DeleteSnapshotRoot(db ethdb.KeyValueWriter)

DeleteSnapshotRoot deletes the root of the block whose state is contained in the persisted snapshot. Since snapshots are not immutable, this method can be used during updates, so a crash or failure will mark the entire snapshot invalid.

func DeleteStorageSnapshot 

func DeleteStorageSnapshot(db ethdb.KeyValueWriter, accountHash, storageHash common.Hash)

DeleteStorageSnapshot removes the snapshot entry of an storage trie leaf.

func DeleteTrieNode 

func DeleteTrieNode(db ethdb.KeyValueWriter, hash common.Hash)

DeleteTrieNode deletes the specified trie node from the database.

func DeleteTxLookupEntries 

func DeleteTxLookupEntries(db ethdb.KeyValueWriter, hashes []common.Hash)

DeleteTxLookupEntries removes all transaction lookups for a given block.

func DeleteTxLookupEntry 

func DeleteTxLookupEntry(db ethdb.KeyValueWriter, hash common.Hash)

DeleteTxLookupEntry removes all transaction data associated with a hash.

func FindCommonAncestor 

func FindCommonAncestor(db ethdb.Reader, a, b *types.Header) *types.Header

FindCommonAncestor returns the last common ancestor of two block headers

func HasBody 

func HasBody(db ethdb.Reader, hash common.Hash, number uint64) bool

HasBody verifies the existence of a block body corresponding to the hash.

func HasCodeWithPrefix 

func HasCodeWithPrefix(db ethdb.KeyValueReader, hash common.Hash) bool

HasCodeWithPrefix checks if the contract code corresponding to the provided code hash is present in the db. This function will only check presence using the prefix-scheme.

func HasHeader 

func HasHeader(db ethdb.Reader, hash common.Hash, number uint64) bool

HasHeader verifies the existence of a block header corresponding to the hash.

func HasReceipts 

func HasReceipts(db ethdb.Reader, hash common.Hash, number uint64) bool

HasReceipts verifies the existence of all the transaction receipts belonging to a block.

func HasTrieNode 

func HasTrieNode(db ethdb.KeyValueReader, hash common.Hash) bool

HasTrieNode checks if the trie node with the provided hash is present in db.

func InspectDatabase 

func InspectDatabase(db ethdb.Database, keyPrefix, keyStart []byte) error

InspectDatabase traverses the entire database and checks the size of all different categories of data.

func IsCodeKey 

func IsCodeKey(key []byte) (bool, []byte)

IsCodeKey reports whether the given byte slice is the key of contract code, if so return the raw code hash as well.

func IterateStorageSnapshots 

func IterateStorageSnapshots(db ethdb.Iteratee, accountHash common.Hash) ethdb.Iterator

IterateStorageSnapshots returns an iterator for walking the entire storage space of a specific account.

func NewDatabase 

func NewDatabase(db ethdb.KeyValueStore) ethdb.Database

NewDatabase creates a high level database on top of a given key-value data store without a freezer moving immutable chain segments into cold storage.

func NewLevelDBDatabase 

func NewLevelDBDatabase(file string, cache int, handles int, namespace string, readonly bool) (ethdb.Database, error)

NewLevelDBDatabase creates a persistent key-value database without a freezer moving immutable chain segments into cold storage.

func NewMemoryDatabase 

func NewMemoryDatabase() ethdb.Database

NewMemoryDatabase creates an ephemeral in-memory key-value database without a freezer moving immutable chain segments into cold storage.

func NewMemoryDatabaseWithCap 

func NewMemoryDatabaseWithCap(size int) ethdb.Database

NewMemoryDatabaseWithCap creates an ephemeral in-memory key-value database with an initial starting capacity, but without a freezer moving immutable chain segments into cold storage.

func NewTable 

func NewTable(db ethdb.Database, prefix string) ethdb.Database

NewTable returns a database object that prefixes all keys with a given string.

func PopUncleanShutdownMarker 

func PopUncleanShutdownMarker(db ethdb.KeyValueStore)

PopUncleanShutdownMarker removes the last unclean shutdown marker

func PushUncleanShutdownMarker 

func PushUncleanShutdownMarker(db ethdb.KeyValueStore) ([]uint64, uint64, error)

PushUncleanShutdownMarker appends a new unclean shutdown marker and returns the previous data - a list of timestamps - a count of how many old unclean-shutdowns have been discarded

func ReadAccountSnapshot 

func ReadAccountSnapshot(db ethdb.KeyValueReader, hash common.Hash) []byte

ReadAccountSnapshot retrieves the snapshot entry of an account trie leaf.

func ReadAllCanonicalHashes 

func ReadAllCanonicalHashes(db ethdb.Iteratee, from uint64, to uint64, limit int) ([]uint64, []common.Hash)

ReadAllCanonicalHashes retrieves all canonical number and hash mappings at the certain chain range. If the accumulated entries reaches the given threshold, abort the iteration and return the semi-finish result.

func ReadAllHashes 

func ReadAllHashes(db ethdb.Iteratee, number uint64) []common.Hash

ReadAllHashes retrieves all the hashes assigned to blocks at a certain heights, both canonical and reorged forks included.

func ReadBlock 

func ReadBlock(db ethdb.Reader, hash common.Hash, number uint64) *types.Block

ReadBlock retrieves an entire block corresponding to the hash, assembling it back from the stored header and body. If either the header or body could not be retrieved nil is returned.

Note, due to concurrent download of header and block body the header and thus canonical hash can be stored in the database but the body data not (yet).

func ReadBloomBits 

func ReadBloomBits(db ethdb.KeyValueReader, bit uint, section uint64, head common.Hash) ([]byte, error)

ReadBloomBits retrieves the compressed bloom bit vector belonging to the given section and bit index from the.

func ReadBody 

func ReadBody(db ethdb.Reader, hash common.Hash, number uint64) *types.Body

ReadBody retrieves the block body corresponding to the hash.

func ReadBodyRLP 

func ReadBodyRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue

ReadBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.

func ReadCanonicalBodyRLP 

func ReadCanonicalBodyRLP(db ethdb.Reader, number uint64) rlp.RawValue

ReadCanonicalBodyRLP retrieves the block body (transactions and uncles) for the canonical block at number, in RLP encoding.

func ReadCanonicalHash 

func ReadCanonicalHash(db ethdb.Reader, number uint64) common.Hash

ReadCanonicalHash retrieves the hash assigned to a canonical block number.

func ReadChainConfig 

func ReadChainConfig(db ethdb.KeyValueReader, hash common.Hash) *params.ChainConfig

ReadChainConfig retrieves the consensus settings based on the given genesis hash.

func ReadCode 

func ReadCode(db ethdb.KeyValueReader, hash common.Hash) []byte

ReadCode retrieves the contract code of the provided code hash.

func ReadCodeWithPrefix 

func ReadCodeWithPrefix(db ethdb.KeyValueReader, hash common.Hash) []byte

ReadCodeWithPrefix retrieves the contract code of the provided code hash. The main difference between this function and ReadCode is this function will only check the existence with latest scheme(with prefix).

func ReadDatabaseVersion 

func ReadDatabaseVersion(db ethdb.KeyValueReader) *uint64

ReadDatabaseVersion retrieves the version number of the database.

func ReadHeadBlock 

func ReadHeadBlock(db ethdb.Reader) *types.Block

ReadHeadBlock returns the current canonical head block.

func ReadHeadBlockHash 

func ReadHeadBlockHash(db ethdb.KeyValueReader) common.Hash

ReadHeadBlockHash retrieves the hash of the current canonical head block.

func ReadHeadHeaderHash 

func ReadHeadHeaderHash(db ethdb.KeyValueReader) common.Hash

ReadHeadHeaderHash retrieves the hash of the current canonical head header.

func ReadHeader 

func ReadHeader(db ethdb.Reader, hash common.Hash, number uint64) *types.Header

ReadHeader retrieves the block header corresponding to the hash.

func ReadHeaderNumber 

func ReadHeaderNumber(db ethdb.KeyValueReader, hash common.Hash) *uint64

ReadHeaderNumber returns the header number assigned to a hash.

func ReadHeaderRLP 

func ReadHeaderRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue

ReadHeaderRLP retrieves a block header in its raw RLP database encoding.

func ReadLogs 

func ReadLogs(db ethdb.Reader, hash common.Hash, number uint64) [][]*types.Log

ReadLogs retrieves the logs for all transactions in a block. The log fields are populated with metadata. In case the receipts or the block body are not found, a nil is returned.

func ReadOfflinePruning 

func ReadOfflinePruning(db ethdb.KeyValueStore) (uint64, error)

ReadOfflinePruning reads to check if there is a marker of the last attempt to run offline pruning.

func ReadPreimage 

func ReadPreimage(db ethdb.KeyValueReader, hash common.Hash) []byte

ReadPreimage retrieves a single preimage of the provided hash.

func ReadRawReceipts 

func ReadRawReceipts(db ethdb.Reader, hash common.Hash, number uint64) types.Receipts

ReadRawReceipts retrieves all the transaction receipts belonging to a block. The receipt metadata fields are not guaranteed to be populated, so they should not be used. Use ReadReceipts instead if the metadata is needed.

func ReadReceipt 

func ReadReceipt(db ethdb.Reader, hash common.Hash, config *params.ChainConfig) (*types.Receipt, common.Hash, uint64, uint64)

ReadReceipt retrieves a specific transaction receipt from the database, along with its added positional metadata.

func ReadReceipts 

func ReadReceipts(db ethdb.Reader, hash common.Hash, number uint64, config *params.ChainConfig) types.Receipts

ReadReceipts retrieves all the transaction receipts belonging to a block, including its correspoinding metadata fields. If it is unable to populate these metadata fields then nil is returned.

The current implementation populates these metadata fields by reading the receipts' corresponding block body, so if the block body is not found it will return nil even if the receipt itself is stored.

func ReadReceiptsRLP 

func ReadReceiptsRLP(db ethdb.Reader, hash common.Hash, number uint64) rlp.RawValue

ReadReceiptsRLP retrieves all the transaction receipts belonging to a block in RLP encoding.

func ReadSnapshotBlockHash 

func ReadSnapshotBlockHash(db ethdb.KeyValueReader) common.Hash

ReadSnapshotBlockHash retrieves the hash of the block whose state is contained in the persisted snapshot.

func ReadSnapshotGenerator 

func ReadSnapshotGenerator(db ethdb.KeyValueReader) []byte

ReadSnapshotGenerator retrieves the serialized snapshot generator saved at the last shutdown.

func ReadSnapshotRoot 

func ReadSnapshotRoot(db ethdb.KeyValueReader) common.Hash

ReadSnapshotRoot retrieves the root of the block whose state is contained in the persisted snapshot.

func ReadStorageSnapshot 

func ReadStorageSnapshot(db ethdb.KeyValueReader, accountHash, storageHash common.Hash) []byte

ReadStorageSnapshot retrieves the snapshot entry of an storage trie leaf.

func ReadTransaction 

func ReadTransaction(db ethdb.Reader, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64)

ReadTransaction retrieves a specific transaction from the database, along with its added positional metadata.

func ReadTrieNode 

func ReadTrieNode(db ethdb.KeyValueReader, hash common.Hash) []byte

ReadTrieNode retrieves the trie node of the provided hash.

func ReadTxLookupEntry 

func ReadTxLookupEntry(db ethdb.Reader, hash common.Hash) *uint64

ReadTxLookupEntry retrieves the positional metadata associated with a transaction hash to allow retrieving the transaction or receipt by hash.

func UpdateUncleanShutdownMarker 

func UpdateUncleanShutdownMarker(db ethdb.KeyValueStore)

UpdateUncleanShutdownMarker updates the last marker's timestamp to now.

func WriteAccountSnapshot 

func WriteAccountSnapshot(db ethdb.KeyValueWriter, hash common.Hash, entry []byte)

WriteAccountSnapshot stores the snapshot entry of an account trie leaf.

func WriteBlock 

func WriteBlock(db ethdb.KeyValueWriter, block *types.Block)

WriteBlock serializes a block into the database, header and body separately.

func WriteBloomBits 

func WriteBloomBits(db ethdb.KeyValueWriter, bit uint, section uint64, head common.Hash, bits []byte)

WriteBloomBits stores the compressed bloom bits vector belonging to the given section and bit index.

func WriteBody 

func WriteBody(db ethdb.KeyValueWriter, hash common.Hash, number uint64, body *types.Body)

WriteBody stores a block body into the database.

func WriteBodyRLP 

func WriteBodyRLP(db ethdb.KeyValueWriter, hash common.Hash, number uint64, rlp rlp.RawValue)

WriteBodyRLP stores an RLP encoded block body into the database.

func WriteCanonicalHash 

func WriteCanonicalHash(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

WriteCanonicalHash stores the hash assigned to a canonical block number.

func WriteChainConfig 

func WriteChainConfig(db ethdb.KeyValueWriter, hash common.Hash, cfg *params.ChainConfig)

WriteChainConfig writes the chain config settings to the database.

func WriteCode 

func WriteCode(db ethdb.KeyValueWriter, hash common.Hash, code []byte)

WriteCode writes the provided contract code database.

func WriteDatabaseVersion 

func WriteDatabaseVersion(db ethdb.KeyValueWriter, version uint64)

WriteDatabaseVersion stores the version number of the database

func WriteHeadBlockHash 

func WriteHeadBlockHash(db ethdb.KeyValueWriter, hash common.Hash)

WriteHeadBlockHash stores the head block's hash.

func WriteHeadHeaderHash 

func WriteHeadHeaderHash(db ethdb.KeyValueWriter, hash common.Hash)

WriteHeadHeaderHash stores the hash of the current canonical head header.

func WriteHeader 

func WriteHeader(db ethdb.KeyValueWriter, header *types.Header)

WriteHeader stores a block header into the database and also stores the hash- to-number mapping.

func WriteHeaderNumber 

func WriteHeaderNumber(db ethdb.KeyValueWriter, hash common.Hash, number uint64)

WriteHeaderNumber stores the hash->number mapping.

func WriteOfflinePruning 

func WriteOfflinePruning(db ethdb.KeyValueStore) error

WriteOfflinePruning writes a marker of the last attempt to run offline pruning The marker is written when offline pruning completes and is deleted when the node is started successfully with offline pruning disabled. This ensures users must disable offline pruning and start their node successfully between runs of offline pruning.

func WritePreimages 

func WritePreimages(db ethdb.KeyValueWriter, preimages map[common.Hash][]byte)

WritePreimages writes the provided set of preimages to the database.

func WriteReceipts 

func WriteReceipts(db ethdb.KeyValueWriter, hash common.Hash, number uint64, receipts types.Receipts)

WriteReceipts stores all the transaction receipts belonging to a block.

func WriteSnapshotBlockHash 

func WriteSnapshotBlockHash(db ethdb.KeyValueWriter, blockHash common.Hash)

WriteSnapshotRoot stores the root of the block whose state is contained in the persisted snapshot.

func WriteSnapshotGenerator 

func WriteSnapshotGenerator(db ethdb.KeyValueWriter, generator []byte)

WriteSnapshotGenerator stores the serialized snapshot generator to save at shutdown.

func WriteSnapshotRoot 

func WriteSnapshotRoot(db ethdb.KeyValueWriter, root common.Hash)

WriteSnapshotRoot stores the root of the block whose state is contained in the persisted snapshot.

func WriteStorageSnapshot 

func WriteStorageSnapshot(db ethdb.KeyValueWriter, accountHash, storageHash common.Hash, entry []byte)

WriteStorageSnapshot stores the snapshot entry of an storage trie leaf.

func WriteTrieNode 

func WriteTrieNode(db ethdb.KeyValueWriter, hash common.Hash, node []byte)

WriteTrieNode writes the provided trie node database.

func WriteTxLookupEntries 

func WriteTxLookupEntries(db ethdb.KeyValueWriter, number uint64, hashes []common.Hash)

WriteTxLookupEntries is identical to WriteTxLookupEntry, but it works on a list of hashes

func WriteTxLookupEntriesByBlock 

func WriteTxLookupEntriesByBlock(db ethdb.KeyValueWriter, block *types.Block)

WriteTxLookupEntriesByBlock stores a positional metadata for every transaction from a block, enabling hash based transaction and receipt lookups.

Types

type LegacyTxLookupEntry 

type LegacyTxLookupEntry struct {
	BlockHash  common.Hash
	BlockIndex uint64
	Index      uint64
}

LegacyTxLookupEntry is the legacy TxLookupEntry definition with some unnecessary fields.

type NumberHash 

type NumberHash struct {
	Number uint64
	Hash   common.Hash
}

func ReadAllHashesInRange 

func ReadAllHashesInRange(db ethdb.Iteratee, first, last uint64) []*NumberHash

ReadAllHashes retrieves all the hashes assigned to blocks at a certain heights, both canonical and reorged forks included. This method considers both limits to be _inclusive_.

Source Files

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