types

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Published: May 8, 2018 License: GPL-3.0 Imports: 19 Imported by: 0

Documentation

Overview

Package types contains data types related to Ethereum consensus.

Index

Constants

This section is empty.

Variables

View Source
var (
	EmptyRootHash  = DeriveSha(Transactions{})
	EmptyUncleHash = CalcUncleHash(nil)
)
View Source
var Bloom9 = bloom9
View Source
var ErrInvalidChainId = errors.New("invalid chain id for signer")
View Source
var ErrInvalidSig = errors.New("invalid v, r, s values")
View Source
var HeaderExtraMax = 32

HeaderExtraMax is the byte size limit for Header.Extra.

Functions

func BloomLookup

func BloomLookup(bin Bloom, topic []byte) bool

func CalcUncleHash

func CalcUncleHash(uncles []*Header) common.Hash

func DeriveSha

func DeriveSha(list DerivableList) common.Hash

func HeaderToBytes

func HeaderToBytes(header *Header) []byte

func LogsBloom

func LogsBloom(logs vm.Logs) *big.Int

func Number

func Number(b1, b2 *Block) bool

func Sender

func Sender(signer Signer, tx *Transaction) (common.Address, error)

From returns the address derived from the signature (V, R, S) using secp256k1 elliptic curve and an error if it failed deriving or upon an incorrect signature.

From may cache the address, allowing it to be used regardless of signing method.

func SignatureValues

func SignatureValues(signer Signer, tx *Transaction) (v byte, r *big.Int, s *big.Int)

SignatureValues returns the ECDSA signature values contained in the transaction.

func SortByPriceAndNonce

func SortByPriceAndNonce(txs []*Transaction)

SortByPriceAndNonce sorts the transactions by price in such a way that the nonce orderings within a single account are maintained.

Note, this is not as trivial as it seems from the first look as there are three different criteria that need to be taken into account (price, nonce, account match), which cannot be done with any plain sorting method, as certain items cannot be compared without context.

This method first sorts the separates the list of transactions into individual sender accounts and sorts them by nonce. After the account nonce ordering is satisfied, the results are merged back together by price, always comparing only the head transaction from each account. This is done via a heap to keep it fast.

Types

type BasicSigner

type BasicSigner struct{}

func (BasicSigner) Equal

func (s BasicSigner) Equal(s2 Signer) bool

func (BasicSigner) Hash

func (fs BasicSigner) Hash(tx *Transaction) common.Hash

Hash returns the hash to be sned by the sender. It does not uniquely identify the transaction.

func (BasicSigner) PublicKey

func (fs BasicSigner) PublicKey(tx *Transaction) ([]byte, error)

func (BasicSigner) SignECDSA

func (fs BasicSigner) SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error)

func (BasicSigner) WithSignature

func (fs BasicSigner) WithSignature(tx *Transaction, sig []byte) (*Transaction, error)

WithSignature returns a new transaction with the given snature. This snature needs to be formatted as described in the yellow paper (v+27).

type Block

type Block struct {

	// These fields are used by package eth to track
	// inter-peer block relay.
	ReceivedAt   time.Time
	ReceivedFrom interface{}
	// contains filtered or unexported fields
}

func NewBlock

func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []*Receipt) *Block

NewBlock creates a new block. The input data is copied, changes to header and to the field values will not affect the block.

The values of TxHash, UncleHash, ReceiptHash and Bloom in header are ignored and set to values derived from the given txs, uncles and receipts.

func NewBlockWithHeader

func NewBlockWithHeader(header *Header) *Block

NewBlockWithHeader creates a block with the given header data. The header data is copied, changes to header and to the field values will not affect the block.

func (*Block) Bloom

func (b *Block) Bloom() Bloom

func (*Block) Body

func (b *Block) Body() *Body

Body returns the non-header content of the block.

func (*Block) Coinbase

func (b *Block) Coinbase() common.Address

func (*Block) DecodeRLP

func (b *Block) DecodeRLP(s *rlp.Stream) error

func (*Block) DeprecatedTd

func (b *Block) DeprecatedTd() *big.Int

DeprecatedTd is an old relic for extracting the TD of a block. It is in the code solely to facilitate upgrading the database from the old format to the new, after which it should be deleted. Do not use!

func (*Block) Difficulty

func (b *Block) Difficulty() *big.Int

func (*Block) EncodeRLP

func (b *Block) EncodeRLP(w io.Writer) error

func (*Block) Extra

func (b *Block) Extra() []byte

func (*Block) GasLimit

func (b *Block) GasLimit() *big.Int

func (*Block) GasUsed

func (b *Block) GasUsed() *big.Int

func (*Block) Hash

func (b *Block) Hash() common.Hash

func (*Block) HashNoNonce

func (b *Block) HashNoNonce() common.Hash

func (*Block) Header

func (b *Block) Header() *Header

func (*Block) Nonce

func (b *Block) Nonce() uint64

func (*Block) Number

func (b *Block) Number() *big.Int

func (*Block) NumberU64

func (b *Block) NumberU64() uint64

func (*Block) ParentHash

func (b *Block) ParentHash() common.Hash

func (*Block) ReceiptHash

func (b *Block) ReceiptHash() common.Hash

func (*Block) Root

func (b *Block) Root() common.Hash

func (*Block) Size

func (b *Block) Size() common.StorageSize

func (*Block) String

func (b *Block) String() string

func (*Block) Time

func (b *Block) Time() *big.Int

func (*Block) Transaction

func (b *Block) Transaction(hash common.Hash) *Transaction

func (*Block) Transactions

func (b *Block) Transactions() Transactions

func (*Block) TxHash

func (b *Block) TxHash() common.Hash

func (*Block) UncleHash

func (b *Block) UncleHash() common.Hash

func (*Block) Uncles

func (b *Block) Uncles() []*Header

TODO: copies

func (*Block) ValidateFields

func (b *Block) ValidateFields() error

func (*Block) WithBody

func (b *Block) WithBody(transactions []*Transaction, uncles []*Header) *Block

WithBody returns a new block with the given transaction and uncle contents.

func (*Block) WithMiningResult

func (b *Block) WithMiningResult(nonce uint64) *Block

WithMiningResult returns a new block with the data from b where nonce is set to the provided value.

type BlockBy

type BlockBy func(b1, b2 *Block) bool

func (BlockBy) Sort

func (self BlockBy) Sort(blocks Blocks)

type BlockNonce

type BlockNonce [8]byte

A BlockNonce is a 64-bit hash which proves (combined with the mix-hash) that a sufficient amount of computation has been carried out on a block.

func EncodeNonce

func EncodeNonce(i uint64) BlockNonce

func (BlockNonce) MarshalJSON

func (n BlockNonce) MarshalJSON() ([]byte, error)

func (BlockNonce) Uint64

func (n BlockNonce) Uint64() uint64

type Blocks

type Blocks []*Block

type Bloom

type Bloom [bloomLength]byte

func BytesToBloom

func BytesToBloom(b []byte) Bloom

func CreateBloom

func CreateBloom(receipts Receipts) Bloom

func (*Bloom) Add

func (b *Bloom) Add(d *big.Int)

func (Bloom) Bytes

func (b Bloom) Bytes() []byte

func (Bloom) MarshalJSON

func (b Bloom) MarshalJSON() ([]byte, error)

func (*Bloom) SetBytes

func (b *Bloom) SetBytes(d []byte)

type Body

type Body struct {
	Transactions []*Transaction
	Uncles       []*Header
}

Body is a simple (mutable, non-safe) data container for storing and moving a block's data contents (transactions and uncles) together.

type ChainIdSigner

type ChainIdSigner struct {
	BasicSigner
	// contains filtered or unexported fields
}

EIP155Transaction implements TransactionInterface using the EIP155 rules

func NewChainIdSigner

func NewChainIdSigner(chainId *big.Int) ChainIdSigner

func (ChainIdSigner) Equal

func (s ChainIdSigner) Equal(s2 Signer) bool

func (ChainIdSigner) Hash

func (s ChainIdSigner) Hash(tx *Transaction) common.Hash

Hash returns the hash to be signed by the sender. It does not uniquely identify the transaction.

func (ChainIdSigner) PublicKey

func (s ChainIdSigner) PublicKey(tx *Transaction) ([]byte, error)

func (ChainIdSigner) SigECDSA

func (s ChainIdSigner) SigECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error)

func (ChainIdSigner) SignECDSA

func (s ChainIdSigner) SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error)

func (ChainIdSigner) WithSignature

func (s ChainIdSigner) WithSignature(tx *Transaction, sig []byte) (*Transaction, error)

WithSignature returns a new transaction with the given signature. This signature needs to be formatted as described in the yellow paper (v+27).

type DerivableList

type DerivableList interface {
	Len() int
	GetRlp(i int) []byte
}
type Header struct {
	ParentHash  common.Hash    // Hash to the previous block
	UncleHash   common.Hash    // Uncles of this block
	Coinbase    common.Address // The coin base address
	Root        common.Hash    // Block Trie state
	TxHash      common.Hash    // Tx sha
	ReceiptHash common.Hash    // Receipt sha
	Bloom       Bloom          // Bloom
	Difficulty  *big.Int       // Difficulty for the current block
	Number      *big.Int       // The block number
	GasLimit    *big.Int       // Gas limit
	GasUsed     *big.Int       // Gas used
	Time        *big.Int       // Creation time
	Extra       []byte         // Freeform descriptor
	Nonce       BlockNonce
}

func CopyHeader

func CopyHeader(h *Header) *Header

CopyHeader creates a deep copy of a block header to prevent side effects from modifying a header variable.

func (*Header) Hash

func (h *Header) Hash() common.Hash

func (*Header) HashNoNonce

func (h *Header) HashNoNonce() common.Hash

func (*Header) String

func (h *Header) String() string

func (*Header) UnmarshalJSON

func (h *Header) UnmarshalJSON(data []byte) error

type Log

type Log struct {
	// Consensus fields:
	// address of the contract that generated the event
	Address common.Address `json:"address" gencodec:"required"`
	// list of topics provided by the contract.
	Topics []common.Hash `json:"topics" gencodec:"required"`
	// supplied by the contract, usually ABI-encoded
	Data []byte `json:"data" gencodec:"required"`

	// Derived fields. These fields are filled in by the node
	// but not secured by consensus.
	// block in which the transaction was included
	BlockNumber uint64 `json:"blockNumber"`
	// hash of the transaction
	TxHash common.Hash `json:"transactionHash" gencodec:"required"`
	// index of the transaction in the block
	TxIndex uint `json:"transactionIndex" gencodec:"required"`
	// hash of the block in which the transaction was included
	BlockHash common.Hash `json:"blockHash"`
	// index of the log in the receipt
	Index uint `json:"logIndex" gencodec:"required"`

	// The Removed field is true if this log was reverted due to a chain reorganisation.
	// You must pay attention to this field if you receive logs through a filter query.
	Removed bool `json:"removed"`
}

Log represents a contract log event. These events are generated by the LOG opcode and stored/indexed by the node.

func (*Log) DecodeRLP

func (l *Log) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder.

func (*Log) EncodeRLP

func (l *Log) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder.

func (*Log) String

func (l *Log) String() string

type LogForStorage

type LogForStorage Log

LogForStorage is a wrapper around a Log that flattens and parses the entire content of a log including non-consensus fields.

func (*LogForStorage) DecodeRLP

func (l *LogForStorage) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder.

func (*LogForStorage) EncodeRLP

func (l *LogForStorage) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder.

type Receipt

type Receipt struct {
	// Consensus fields
	PostState         []byte
	CumulativeGasUsed *big.Int
	Bloom             Bloom
	Logs              vm.Logs

	// Implementation fields
	TxHash          common.Hash
	ContractAddress common.Address
	GasUsed         *big.Int
}

Receipt represents the results of a transaction.

func NewReceipt

func NewReceipt(root []byte, cumulativeGasUsed *big.Int) *Receipt

NewReceipt creates a barebone transaction receipt, copying the init fields.

func (*Receipt) DecodeRLP

func (r *Receipt) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder, and loads the consensus fields of a receipt from an RLP stream.

func (*Receipt) EncodeRLP

func (r *Receipt) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder, and flattens the consensus fields of a receipt into an RLP stream.

func (*Receipt) RlpEncode

func (r *Receipt) RlpEncode() []byte

RlpEncode implements common.RlpEncode required for SHA3 derivation.

func (*Receipt) String

func (r *Receipt) String() string

String implements the Stringer interface.

type ReceiptForStorage

type ReceiptForStorage Receipt

ReceiptForStorage is a wrapper around a Receipt that flattens and parses the entire content of a receipt, as opposed to only the consensus fields originally.

func (*ReceiptForStorage) DecodeRLP

func (r *ReceiptForStorage) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder, and loads both consensus and implementation fields of a receipt from an RLP stream.

func (*ReceiptForStorage) EncodeRLP

func (r *ReceiptForStorage) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder, and flattens all content fields of a receipt into an RLP stream.

type Receipts

type Receipts []*Receipt

Receipts is a wrapper around a Receipt array to implement types.DerivableList.

func (Receipts) GetRlp

func (r Receipts) GetRlp(i int) []byte

GetRlp returns the RLP encoding of one receipt from the list.

func (Receipts) Len

func (r Receipts) Len() int

Len returns the number of receipts in this list.

type Signer

type Signer interface {
	// Hash returns the rlp encoded hash for signatures
	Hash(tx *Transaction) common.Hash
	// PubilcKey returns the public key derived from the signature
	PublicKey(tx *Transaction) ([]byte, error)
	// SignECDSA signs the transaction with the given and returns a copy of the tx
	SignECDSA(tx *Transaction, prv *ecdsa.PrivateKey) (*Transaction, error)
	// WithSignature returns a copy of the transaction with the given signature
	WithSignature(tx *Transaction, sig []byte) (*Transaction, error)
	// Checks for equality on the signers
	Equal(Signer) bool
}

type StorageBlock

type StorageBlock Block

[deprecated by eth/63] StorageBlock defines the RLP encoding of a Block stored in the state database. The StorageBlock encoding contains fields that would otherwise need to be recomputed.

func (*StorageBlock) DecodeRLP

func (b *StorageBlock) DecodeRLP(s *rlp.Stream) error

[deprecated by eth/63]

type Transaction

type Transaction struct {
	// contains filtered or unexported fields
}

func NewContractCreation

func NewContractCreation(nonce uint64, amount, gasLimit, gasPrice *big.Int, data []byte) *Transaction

func NewTransaction

func NewTransaction(nonce uint64, to common.Address, amount, gasLimit, gasPrice *big.Int, data []byte) *Transaction

func (*Transaction) ChainId

func (tx *Transaction) ChainId() *big.Int

ChainId returns which chain id this transaction was signed for (if at all)

func (*Transaction) Cost

func (tx *Transaction) Cost() *big.Int

Cost returns amount + gasprice * gaslimit.

func (*Transaction) Data

func (tx *Transaction) Data() []byte

func (*Transaction) DecodeRLP

func (tx *Transaction) DecodeRLP(s *rlp.Stream) error

func (*Transaction) EncodeRLP

func (tx *Transaction) EncodeRLP(w io.Writer) error

func (*Transaction) From

func (tx *Transaction) From() (common.Address, error)

func (*Transaction) Gas

func (tx *Transaction) Gas() *big.Int

func (*Transaction) GasPrice

func (tx *Transaction) GasPrice() *big.Int

func (*Transaction) Hash

func (tx *Transaction) Hash() common.Hash

Hash hashes the RLP encoding of tx. It uniquely identifies the transaction.

func (*Transaction) Nonce

func (tx *Transaction) Nonce() uint64

func (*Transaction) Protected

func (tx *Transaction) Protected() bool

Protected returns whether the transaction is protected from replay protection

func (*Transaction) RawSignatureValues

func (tx *Transaction) RawSignatureValues() (v *big.Int, r *big.Int, s *big.Int)

func (*Transaction) SetSigner

func (tx *Transaction) SetSigner(s Signer)

func (*Transaction) SigHash

func (tx *Transaction) SigHash() common.Hash

SigHash returns the hash to be signed by the sender. It does not uniquely identify the transaction.

func (*Transaction) SignECDSA

func (tx *Transaction) SignECDSA(prv *ecdsa.PrivateKey) (*Transaction, error)

func (*Transaction) SignatureValues

func (tx *Transaction) SignatureValues() (v byte, r *big.Int, s *big.Int)

func (*Transaction) Size

func (tx *Transaction) Size() common.StorageSize

func (*Transaction) String

func (tx *Transaction) String() string

func (*Transaction) To

func (tx *Transaction) To() *common.Address

func (*Transaction) Value

func (tx *Transaction) Value() *big.Int

func (*Transaction) WithSignature

func (tx *Transaction) WithSignature(sig []byte) (*Transaction, error)

func (*Transaction) WithSigner

func (tx *Transaction) WithSigner(signer Signer) *Transaction

type Transactions

type Transactions []*Transaction

Transaction slice type for basic sorting.

func TxDifference

func TxDifference(a, b Transactions) (keep Transactions)

Returns a new set t which is the difference between a to b

func (Transactions) GetRlp

func (s Transactions) GetRlp(i int) []byte

GetRlp implements Rlpable and returns the i'th element of s in rlp

func (Transactions) Len

func (s Transactions) Len() int

Len returns the length of s

func (Transactions) Swap

func (s Transactions) Swap(i, j int)

Swap swaps the i'th and the j'th element in s

type TxByNonce

type TxByNonce Transactions

TxByNonce implements the sort interface to allow sorting a list of transactions by their nonces. This is usually only useful for sorting transactions from a single account, otherwise a nonce comparison doesn't make much sense.

func (TxByNonce) Len

func (s TxByNonce) Len() int

func (TxByNonce) Less

func (s TxByNonce) Less(i, j int) bool

func (TxByNonce) Swap

func (s TxByNonce) Swap(i, j int)

type TxByPrice

type TxByPrice Transactions

TxByPrice implements both the sort and the heap interface, making it useful for all at once sorting as well as individually adding and removing elements.

func (TxByPrice) Len

func (s TxByPrice) Len() int

func (TxByPrice) Less

func (s TxByPrice) Less(i, j int) bool

func (*TxByPrice) Pop

func (s *TxByPrice) Pop() interface{}

func (*TxByPrice) Push

func (s *TxByPrice) Push(x interface{})

func (TxByPrice) Swap

func (s TxByPrice) Swap(i, j int)

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