rawdb

package
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 Go to latest Published: Jul 2, 2019 License: MIT Imports: 16 Imported by: 0

README

go-ethereum의 LevelDB 스키마를 대부분 따름

일부 스키마 및 인코딩 방식 등을 커스터마이징

  1. database.go

    • DB 생성 인터페이스 함수 구현
    • in-memory (NewMemoryDatabase) 및 persistent (=disk) (NewLevelDBDatabase) DB 구현

  2. io_chain.go

    • 블록 데이터 I/O 함수 (read, write, delete) 구현
    • Hash, Header, Body, Td (=total difficulty), Block 등의 I/O 구현
    • GenesisHeaderHash, LastHeaderHash 접근 가능

  3. io_state.go

    • State 데이터 I/O 함수 (read, write, delete) 구현
    • 추가적으로 테스팅을 위한 ReadStates, CountStates 구현

  4. io_txs.go

    • Tx (=transaction) 데이터 I/O 함수 (read, write, delete) 구현
    • 블록 안에 저장된 tx와 밖에 따로 저장된 tx가 있으므로 두 케이스 모두에 대해 구현

    (1) 블록 안에 저장된 tx: TxLookupEntry, tx가 저장된 블록의 해시 return

    (2) 블록 밖에 저장된 tx: RawTxData, tx 자체를 저장

  5. schema.go

    • var (...)에 로우레벨 DB prefixing 스키마 설명 (실제 LevelDB에 저장되는 key 값)

      e.g. lastHeaderKey = []byte("LastHeader")

    • 각각의 key 값에 대한 인터페이스 함수

Documentation

Overview

Package rawdb contains a collection of low level database accessors. e.g. read, write

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CountStates 

func CountStates(db xordb.Iteratee) int

Get the number of account

func DeleteBlock 

func DeleteBlock(db xordb.Writer, hash common.Hash, number uint64)

DeleteBlock removes all block data associated with a hash.

func DeleteBody 

func DeleteBody(db xordb.Writer, hash common.Hash, number uint64)

DeleteBody removes all block body data associated with a hash.

func DeleteHash 

func DeleteHash(db xordb.Writer, number uint64)

DeleteHash removes the number to hash mapping.

func DeleteHeader 

func DeleteHeader(db xordb.Writer, hash common.Hash, number uint64)

DeleteHeader removes all block header data associated with a hash.

func DeleteRawTxData 

func DeleteRawTxData(db xordb.Writer, hash common.Hash)

DeleteRawTxData removes the raw tx data corresponding to the hash

func DeleteState 

func DeleteState(db xordb.Writer, publicKey *ecdsa.PublicKey)

DeleteState deletes a tx hash corresponding to the PublicKey's address

func DeleteTd 

func DeleteTd(db xordb.Writer, hash common.Hash, number uint64)

DeleteTd removes all block total difficulty data associated with a hash.

func DeleteTxLookupEntry 

func DeleteTxLookupEntry(db xordb.Writer, hash common.Hash)

DeleteTxLookupEntry removes all transaction data associated with a hash.

func HasBody 

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

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

func HasHeader 

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

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

func LoadBlock 

func LoadBlock(db xordb.Reader, hash common.Hash, number uint64) *types.Block

LoadBlock retrieves an entire block corresponding to the hash & number

func LoadBlockByBN 

func LoadBlockByBN(db xordb.Reader, number uint64) *types.Block

LoadBlockByBN retrieves an entire block corresponding to the number

func LoadHeader 

func LoadHeader(db xordb.Reader, hash common.Hash, number uint64) *types.Header

LoadHeader retrieves an entire header corresponding to the hash & number

func LoadHeaderByBN 

func LoadHeaderByBN(db xordb.Reader, number uint64) *types.Header

LoadHeaderByBN retrieves an entire header corresponding to the number

func NewDatabase 

func NewDatabase(db xordb.KeyValueStore) xordb.Database

NewDatabase creates a high level database on top of a given key-value data

func NewLevelDBDatabase 

func NewLevelDBDatabase(file string, cache int, handles int, namespace string) (xordb.Database, error)

NewLevelDBDatabase creates a persistent key-value database

func NewMemoryDatabase 

func NewMemoryDatabase() xordb.Database

NewMemoryDatabase creates an in-memory key-value database

func NewMemoryDatabaseWithCap 

func NewMemoryDatabaseWithCap(size int) xordb.Database

NewMemoryDatabaseWithCap creates an in-memory key-value database with an initial starting capacity

func ReadBody 

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

ReadBody retrieves the block body corresponding to the hash.

func ReadBodyData 

func ReadBodyData(db xordb.Reader, hash common.Hash, number uint64) []byte

ReadBodyData retrieves the block body in json encoding

func ReadGenesisHeaderHash 

func ReadGenesisHeaderHash(db xordb.Reader) common.Hash

ReadGenesisHeaderHash retrieves the hash of the genesis block.

func ReadHash 

func ReadHash(db xordb.Reader, number uint64) common.Hash

ReadHash retrieves the hash assigned to a block number.

func ReadHeadBlockHash 

func ReadHeadBlockHash(db xordb.Reader) common.Hash

ReadHeadBlockHash retrieves the hash of the last block.

func ReadHeader 

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

ReadHeader retrieves the block header corresponding to the hash.

func ReadHeaderData 

func ReadHeaderData(db xordb.Reader, hash common.Hash, number uint64) rlp.RawValue

ReadHeaderData retrieves a block header data in rlp encoding

func ReadHeaderNumber 

func ReadHeaderNumber(db xordb.Reader, hash common.Hash) *uint64

ReadHeaderNumber returns the header number assigned to a hash.

func ReadLastHeaderHash 

func ReadLastHeaderHash(db xordb.Reader) common.Hash

ReadLastHeaderHash retrieves the hash of the last header.

func ReadRawTxData 

func ReadRawTxData(db xordb.Reader, hash common.Hash) []byte

ReadRawTxData retrieves the raw tx data corresponding to the hash

func ReadState 

func ReadState(db xordb.Reader, publicKey *ecdsa.PublicKey) common.Hash

ReadState reads a tx hash corresponding to the PublicKey's address

func ReadStates 

func ReadStates(db xordb.Database)

ReadStates reads all address - txHash mappings in the db

func ReadTd 

func ReadTd(db xordb.Reader, hash common.Hash, number uint64) *big.Int

ReadTd retrieves a block's total difficulty corresponding to the hash.

func ReadTdData 

func ReadTdData(db xordb.Reader, hash common.Hash, number uint64) rlp.RawValue

ReadTdData retrieves a block's total difficulty corresponding to the hash.

func ReadTransaction 

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

ReadTransaction retrieves a transaction and its metadata. returns (tx, blockHash, *blockNumber, uint64(txIndex))

func ReadTxLookupEntry 

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

ReadTxLookupEntry retrieves the blocknumber of the block the tx is in

func StoreBlock 

func StoreBlock(db xordb.Writer, block *types.Block)

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

func WriteBody 

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

WriteBody stores a block body into the database.

func WriteBodyData 

func WriteBodyData(db xordb.Writer, hash common.Hash, number uint64, data []byte)

WriteBodyData stores block body into the database in json encoding

func WriteGenesisHeaderHash 

func WriteGenesisHeaderHash(db xordb.Writer, hash common.Hash)

WriteGenesisHeaderHash stores the hash of the genesis block.

func WriteHash 

func WriteHash(db xordb.Writer, hash common.Hash, number uint64)

WriteHash stores the hash assigned to a block number.

func WriteHeadBlockHash 

func WriteHeadBlockHash(db xordb.Writer, hash common.Hash)

WriteHeadBlockHash stores the last block's hash.

func WriteHeader 

func WriteHeader(db xordb.Writer, header *types.Header)

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

func WriteLastHeaderHash 

func WriteLastHeaderHash(db xordb.Writer, hash common.Hash)

WriteLastHeaderHash stores the hash of the last header.

func WriteRawTxData 

func WriteRawTxData(db xordb.Writer, hash common.Hash, data []byte)

WriteRawTxData stores the raw tx data corresponding to the hash

func WriteState 

func WriteState(db xordb.Writer, address common.Address, txHash common.Hash)

WriteState writes a tx hash corresponding to the PublicKey's address

func WriteTd 

func WriteTd(db xordb.Writer, hash common.Hash, number uint64, td *big.Int)

WriteTd stores the total difficulty of a block into the database.

func WriteTransaction 

func WriteTransaction(db xordb.Database, hash common.Hash, tx *types.Transaction)

WriteTransaction stores a transaction into the database.

func WriteTxLookupEntries 

func WriteTxLookupEntries(db xordb.Writer, block *types.Block)

WriteTxLookupEntries stores the blocknumber of the block the tx is in

Types

This section is empty.

Source Files

View all Source files

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