types

package
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 Go to latest Published: Mar 1, 2020 License: Apache-2.0 Imports: 26 Imported by: 0

Documentation

Overview

Package types contains data types related to Ethereum consensus.

Index

Examples

Constants

View Source 
const (
	// BloomByteLength represents the number of bytes used in a header log bloom.
	BloomByteLength = 256

	// BloomBitLength represents the number of bits used in a header log bloom.
	BloomBitLength = 8 * BloomByteLength
)
View Source 
const (
	// ReceiptStatusFailed is the status code of a transaction if execution failed.
	ReceiptStatusFailed = uint64(0)

	// ReceiptStatusSuccessful is the status code of a transaction if execution succeeded.
	ReceiptStatusSuccessful = uint64(1)
)

Variables

View Source 
var (
	EmptyRootHash  = DeriveSha(Transactions{})
	EmptyUncleHash = CalcUncleHash(nil)
	EmptyHash      = common.Hash{}
)
View Source 
var Bloom9 = bloom9
View Source 
var (
	ErrInvalidChainId = errors.New("invalid chain id for signer")
)
View Source 
var (
	ErrInvalidSig = errors.New("invalid transaction v, r, s values")
)
View Source 
var RandomAddr = common.BytesToAddress([]byte("random"))
View Source 
var RandomBigInt = new(big.Int).SetBytes([]byte("dxchainRandomNumber"))
View Source 
var RandomHash = common.BytesToHash([]byte("random"))

Functions

func BloomLookup 

func BloomLookup(bin Bloom, topic bytesBacked) bool

Look up for the topic in bin

func CalcUncleHash 

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

func CheckEquality 

func CheckEquality(t *testing.T, inputName, fieldName string, got, want interface{})

func CheckError 

func CheckError(t *testing.T, dataName string, got error, wants ...error)

func DeriveSha 

func DeriveSha(list DerivableList) common.Hash

DeriveSha returns the hash of a trie constructed by the list. The trie is constructed by the entries [rlp(index), list.GetRlp(index)]

func LogsBloom 

func LogsBloom(logs []*Log) *big.Int

LogBloom return a Bloom of log.Address and log.Topics

func MakeRandomBlock 

func MakeRandomBlock(txLen int, parentHash common.Hash, blockNumber *big.Int) (*Block, []*Receipt)

MakeRandomBlock makes a random new block with give parameter. uncles are not set.

func MakeTransactionWithReceipt 

func MakeTransactionWithReceipt(contractAddress common.Address) (*Transaction, *Receipt)

func NewCandidateTrie 

func NewCandidateTrie(root common.Hash, db *trie.Database) (*trie.Trie, error)

func NewDelegateTrie 

func NewDelegateTrie(root common.Hash, db *trie.Database) (*trie.Trie, error)

func NewEpochTrie 

func NewEpochTrie(root common.Hash, db *trie.Database) (*trie.Trie, error)

func NewMinedCntTrie 

func NewMinedCntTrie(root common.Hash, db *trie.Database) (*trie.Trie, error)

func NewVoteTrie 

func NewVoteTrie(root common.Hash, db *trie.Database) (*trie.Trie, error)

func Number 

func Number(b1, b2 *Block) bool

Number is the default BlockBy function, which compares b.header.Number and return blocks in increasing order

func Sender 

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

Sender 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.

Sender may cache the address, allowing it to be used regardless of signing method. The cache is invalidated if the cached signer does not match the signer used in the current call.

Types

type AddCandidateTxData 

type AddCandidateTxData struct {
	Deposit     common.BigInt
	RewardRatio uint64
}

AddCandidateTxData is the data field for AddCandidateTx

func (*AddCandidateTxData) DecodeRLP 

func (data *AddCandidateTxData) DecodeRLP(s *rlp.Stream) error

DecodeRLP defines the rlp decoding rule for AddCandidateTxData

func (*AddCandidateTxData) EncodeRLP 

func (data *AddCandidateTxData) EncodeRLP(w io.Writer) error

EncodeRLP defines the rlp encoding rule for AddCandidateTxData

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
}

Block represents an entire block in the Ethereum blockchain.

func MakeRandomBlockForTest 

func MakeRandomBlockForTest(txLen int, uncleLen int, blockNumber *big.Int) *Block

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

DecodeRLP decodes the Ethereum RLP block format to original block

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! Deprecated: relic method to get difficulty. do not use

func (*Block) Difficulty 

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

func (*Block) DposCtx 

func (b *Block) DposCtx() *DposContext

func (*Block) EncodeRLP 

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

EncodeRLP serializes b into the Ethereum RLP block format.

func (*Block) Extra 

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

func (*Block) GasLimit 

func (b *Block) GasLimit() uint64

func (*Block) GasUsed 

func (b *Block) GasUsed() uint64

func (*Block) Hash 

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

Hash returns the keccak256 hash of b's header. The hash is computed on the first call and cached thereafter.

func (*Block) Header 

func (b *Block) Header() *Header

func (*Block) MixDigest 

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

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) SetDposCtx 

func (b *Block) SetDposCtx(dposCtx *DposContext)

func (*Block) Size 

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

size returns the true RLP encoded storage size of the block, either by encoding and returning it, or returning a previsouly cached value.

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

func (*Block) Validator 

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

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) WithSeal 

func (b *Block) WithSeal(header *Header) *Block

WithSeal returns a new block with the data from b but the header replaced with the sealed one.

type BlockBy 

type BlockBy func(b1, b2 *Block) bool

BlockBy is the function to be used for block sorting.

func (BlockBy) Sort 

func (b BlockBy) Sort(blocks Blocks)

Sort is the public function to be used for sorting 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

EncodeNonce converts the given integer to a block nonce.

func (BlockNonce) MarshalText 

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

MarshalText encodes n as a hex string with 0x prefix.

func (BlockNonce) Uint64 

func (n BlockNonce) Uint64() uint64

Uint64 returns the integer value of a block nonce.

func (*BlockNonce) UnmarshalText 

func (n *BlockNonce) UnmarshalText(input []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

type Blocks 

type Blocks []*Block

type Bloom 

type Bloom [BloomByteLength]byte

Bloom represents a 2048 bit bloom filter.

When a block is generated or verified, the address of any logging contract, and all the indexed fields from the logs generated by executing those transactions are added to a bloom filter, which is included in the block header. The actual logs are not included in the block data, to save space.

When an application wants to find all the log entries from a given contract, or with specific indexed fields (or both), the node can quickly scan over the header of each block, checking the bloom filter to see if it may contain relevant logs. If it does, the node re-executes the transactions from that block, regenerating the logs, and returning the relevant ones to the application.

An empty Bloom filter is a bit array of m bits, all set to 0. There must also be k different hash functions defined, each of which maps or hashes some set element to one of the m array positions, generating a uniform random distribution. Typically, k is a constant, much smaller than m, which is proportional to the number of elements to be added; the precise choice of k and the constant of proportionality of m are determined by the intended false positive rate of the filter.

To add an element, feed it to each of the k hash functions to get k array positions. Set the bits at all these positions to 1.

To query for an element (test whether it is in the set), feed it to each of the k hash functions to get k array positions. If any of the bits at these positions is 0, the element is definitely not in the set – if it were, then all the bits would have been set to 1 when it was inserted. If all are 1, then either the element is in the set, or the bits have by chance been set to 1 during the insertion of other elements, resulting in a false positive. In a simple Bloom filter, there is no way to distinguish between the two cases, but more advanced techniques can address this problem.

Pros: 

space efficient

Cons: 

can’t store an associated object
deletions are not allowed
small false positive probability
Example

TestBloom_Bytes shows the basic usage of Bloom type for bytes. 1. Add some string called positive 2. Try to find the positive string, shall return true. 3. Try to find the not inserted string, shall return false. 

positive := []myByte{
	" ",
	"dxchaingogogogogo",
	"123123123213123123123123123123",
}
negative := []myByte{
	"31231231231",
}

var bloom Bloom
for _, data := range positive {
	bloom.Add(new(big.Int).SetBytes([]byte(data)))
}

for _, data := range positive {
	if BloomLookup(bloom, data) {
		fmt.Println("Inserted value", data, "found in bloom")
	}
}
for _, data := range negative {
	if !BloomLookup(bloom, data) {
		fmt.Println("Value haven't inserted", data, "not found in bloom")
	}
}

Output:

Inserted value   found in bloom
Inserted value dxchaingogogogogo found in bloom
Inserted value 123123123213123123123123123123 found in bloom
Value haven't inserted 31231231231 not found in bloom

func BytesToBloom 

func BytesToBloom(b []byte) Bloom

BytesToBloom converts a byte slice to a bloom filter. It panics if b is not of suitable size.

func CreateBloom 

func CreateBloom(receipts Receipts) Bloom

func (*Bloom) Add 

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

Add adds d to the filter. Future calls of Test(d) will return true.

func (Bloom) Big 

func (b Bloom) Big() *big.Int

Big converts b to a big integer.

func (Bloom) Bytes 

func (b Bloom) Bytes() []byte

Bytes convert Bloom to byte slice

func (Bloom) MarshalText 

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

MarshalText encodes b as a hex string with 0x prefix.

func (*Bloom) SetBytes 

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

SetBytes sets the content of b to the given bytes. It panics if d is not of suitable size.

func (Bloom) Test 

func (b Bloom) Test(test *big.Int) bool

Test directly call bloomLookup to see whether the test is in bloom

func (Bloom) TestBytes 

func (b Bloom) TestBytes(test []byte) bool

TestByte check whether a byte string is in bloom. Deprecated: Do not use this function since it cannot deal with []byte start with 00 Use BloomLookUp instead.

func (*Bloom) UnmarshalText 

func (b *Bloom) UnmarshalText(input []byte) error

UnmarshalText b as a hex string with 0x prefix.

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 DerivableList 

type DerivableList interface {
	Len() int
	GetRlp(i int) []byte
}

type DposContext 

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

DposContext wraps 5 tries to store data needed in dpos consensus

func NewDposContext 

func NewDposContext(diskdb ethdb.Database) (*DposContext, error)

NewDposContext creates DposContext with the given database

func NewDposContextFromProto 

func NewDposContextFromProto(diskdb ethdb.Database, ctxProto *DposContextRoot) (*DposContext, error)

NewDposContextFromProto creates DposContext with database and trie root

func (*DposContext) BecomeCandidate 

func (dc *DposContext) BecomeCandidate(candidateAddr common.Address) error

BecomeCandidate will store the given candidate into candidateTrie

func (*DposContext) CancelVote 

func (dc *DposContext) CancelVote(delegatorAddr common.Address) error

CancelVote will remove all vote records

func (*DposContext) CandidateTrie 

func (dc *DposContext) CandidateTrie() *trie.Trie

func (*DposContext) Commit 

func (dc *DposContext) Commit() (*DposContextRoot, error)

Commit writes the data in 5 tries to db

func (*DposContext) Copy 

func (dc *DposContext) Copy() *DposContext

Copy creates a new DposContext which has the same content with old one

func (*DposContext) DB 

func (dc *DposContext) DB() *trie.Database

func (*DposContext) DelegateTrie 

func (dc *DposContext) DelegateTrie() *trie.Trie

func (*DposContext) EpochTrie 

func (dc *DposContext) EpochTrie() *trie.Trie

func (*DposContext) GetAllDelegatorsOfCandidate 

func (dc *DposContext) GetAllDelegatorsOfCandidate(candidate common.Address) ([]common.Address, error)

GetAllDelegatorsOfCandidate retrieve all delegators of the candidate

func (*DposContext) GetCandidates 

func (dc *DposContext) GetCandidates() ([]common.Address, error)

GetCandidates will iterate through the candidateTrie and get all candidates

func (*DposContext) GetMinedCnt 

func (dc *DposContext) GetMinedCnt(epoch int64, addr common.Address) int64

GetMinedCnt get mined block count in the minedCntTrie

func (*DposContext) GetValidators 

func (dc *DposContext) GetValidators() ([]common.Address, error)

GetValidators retrieves validator list in current epoch

func (*DposContext) GetVotedCandidatesByAddress 

func (dc *DposContext) GetVotedCandidatesByAddress(delegator common.Address) ([]common.Address, error)

GetVotedCandidatesByAddress retrieve all voted candidates of given delegator

func (*DposContext) KickoutCandidate 

func (dc *DposContext) KickoutCandidate(candidateAddr common.Address) error

KickoutCandidate will kick out the given candidate

func (*DposContext) MinedCntTrie 

func (dc *DposContext) MinedCntTrie() *trie.Trie

func (*DposContext) RevertToSnapShot 

func (dc *DposContext) RevertToSnapShot(snapshot *DposContext)

RevertToSnapShot revert current DposContext to a previous one

func (*DposContext) Root 

func (dc *DposContext) Root() (h common.Hash)

Root calculates the root hash of 5 tries in DposContext

func (*DposContext) SetCandidate 

func (dc *DposContext) SetCandidate(candidate *trie.Trie)

func (*DposContext) SetDelegate 

func (dc *DposContext) SetDelegate(delegate *trie.Trie)

func (*DposContext) SetEpoch 

func (dc *DposContext) SetEpoch(epoch *trie.Trie)

func (*DposContext) SetMinedCnt 

func (dc *DposContext) SetMinedCnt(minedCnt *trie.Trie)

func (*DposContext) SetValidators 

func (dc *DposContext) SetValidators(validators []common.Address) error

SetValidators update validators into epochTrie

func (*DposContext) SetVote 

func (dc *DposContext) SetVote(vote *trie.Trie)

func (*DposContext) Snapshot 

func (dc *DposContext) Snapshot() *DposContext

Snapshot works as same with Copy

func (*DposContext) ToRoot 

func (dc *DposContext) ToRoot() *DposContextRoot

ToRoot convert DposContext to DposContextRoot

func (*DposContext) Vote 

func (dc *DposContext) Vote(delegatorAddr common.Address, candidateList []common.Address) (int, error)

Vote will store the vote record

func (*DposContext) VoteTrie 

func (dc *DposContext) VoteTrie() *trie.Trie

type DposContextRoot 

type DposContextRoot struct {
	EpochRoot     common.Hash `json:"epochRoot"        gencodec:"required"`
	DelegateRoot  common.Hash `json:"delegateRoot"     gencodec:"required"`
	CandidateRoot common.Hash `json:"candidateRoot"    gencodec:"required"`
	VoteRoot      common.Hash `json:"voteRoot"         gencodec:"required"`
	MinedCntRoot  common.Hash `json:"minedCntRoot"     gencodec:"required"`
}

DposContextRoot wrap 5 trie root hash

func (*DposContextRoot) Root 

func (dcp *DposContextRoot) Root() (h common.Hash)

Root calculates the root hash of 5 tries in DposContext

type DxcoinCharge 

type DxcoinCharge struct {
	Address common.Address
	Value   *big.Int
}

type DxcoinCollateral 

type DxcoinCollateral struct {
	DxcoinCharge
}

type EIP155Signer 

type EIP155Signer struct {
	// contains filtered or unexported fields
}

EIP155Transaction implements Signer using the EIP155 rules.

func NewEIP155Signer 

func NewEIP155Signer(chainId *big.Int) EIP155Signer

NewEIP155Signer is used after hardfork EIP155

func (EIP155Signer) Equal 

func (s EIP155Signer) Equal(s2 Signer) bool

Equal Check s == s2, check field include type and chainId

func (EIP155Signer) Hash 

func (s EIP155Signer) Hash(tx *Transaction) common.Hash

Hash returns the hash to be signed by the sender. It does not uniquely identify the transaction. For EIP155 Signer, the hash field include R,S,V, which is s.chainId, 0, 0

func (EIP155Signer) Sender 

func (s EIP155Signer) Sender(tx *Transaction) (common.Address, error)

EIP155Signer Sender function. Return the address. Call recoverPlain, with data.R, data.S, data.V-chainIdMul-8 For this kind of transaction, data.V == 35/36+chainIdMul or data.V == 27/28

func (EIP155Signer) SignatureValues 

func (s EIP155Signer) SignatureValues(tx *Transaction, sig []byte) (R, S, V *big.Int, err error)

SignatureValues returns signature values. This signature needs to be in the [R || S || V] format where V is 0 or 1.

type FrontierSigner 

type FrontierSigner struct{}

func (FrontierSigner) Equal 

func (s FrontierSigner) Equal(s2 Signer) bool

func (FrontierSigner) Hash 

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

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

func (FrontierSigner) Sender 

func (fs FrontierSigner) Sender(tx *Transaction) (common.Address, error)

func (FrontierSigner) SignatureValues 

func (fs FrontierSigner) SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error)

SignatureValues returns signature values R, S, V and nil. This signature needs to be in the [R || S || V] format where V is 0 or 1. 

type Header struct {
	ParentHash  common.Hash      `json:"parentHash"       gencodec:"required"` // Hash pointer to the previous block
	UncleHash   common.Hash      `json:"sha3Uncles"       gencodec:"required"` // Hash pointer to the uncle
	Validator   common.Address   `json:"validator"        gencodec:"required"`
	Coinbase    common.Address   `json:"coinbase"         gencodec:"required"` // Address of the coinbase
	Root        common.Hash      `json:"stateRoot"        gencodec:"required"` // stateRoot
	TxHash      common.Hash      `json:"transactionsRoot" gencodec:"required"` // txRoot
	ReceiptHash common.Hash      `json:"receiptsRoot"     gencodec:"required"` // Receipt root
	DposContext *DposContextRoot `json:"dposContext"      gencodec:"required"`
	Bloom       Bloom            `json:"logsBloom"        gencodec:"required"` //
	Difficulty  *big.Int         `json:"difficulty"       gencodec:"required"` // Difficulty of the current block
	Number      *big.Int         `json:"number"           gencodec:"required"` // Block height
	GasLimit    uint64           `json:"gasLimit"         gencodec:"required"` // Total gases could be spent
	GasUsed     uint64           `json:"gasUsed"          gencodec:"required"` // Gas spent in transactions from this block
	Time        *big.Int         `json:"timestamp"        gencodec:"required"` // timestamp
	Extra       []byte           `json:"extraData"        gencodec:"required"` // Extra info
	MixDigest   common.Hash      `json:"mixHash"`                              // Signature?
	Nonce       BlockNonce       `json:"nonce"`                                // Number used for PoW
}

Header represents a block header in the Ethereum blockchain.

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 MakeRandomHeader 

func MakeRandomHeader(parentHash common.Hash, number *big.Int) *Header

MakeRandomHeader makes a random header with random Root, Difficulty,, GasLimit, GasUsed, Time, Extra, MixDigest, and Nonce. If parentHash == RandomHash, ParentHash is also randomly picked. If number == RandomBigInt, Number is also randomly picked.

func (*Header) Hash 

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

Hash returns the block hash of the header, which is simply the keccak256 hash of its RLP encoding.

func (Header) MarshalJSON 

func (h Header) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON.

func (*Header) Size 

func (h *Header) Size() common.StorageSize

size returns the approximate memory used by all internal contents. It is used to approximate and limit the memory consumption of various caches.

func (*Header) UnmarshalJSON 

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

UnmarshalJSON unmarshals from JSON.

type HomesteadSigner 

type HomesteadSigner struct{ FrontierSigner }

HomesteadTransaction implements TransactionInterface using the homestead rules.

func (HomesteadSigner) Equal 

func (s HomesteadSigner) Equal(s2 Signer) bool

func (HomesteadSigner) Sender 

func (hs HomesteadSigner) Sender(tx *Transaction) (common.Address, error)

func (HomesteadSigner) SignatureValues 

func (hs HomesteadSigner) SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error)

SignatureValues returns signature values. This signature needs to be in the [R || S || V] format where V is 0 or 1.

type HostAnnouncement 

type HostAnnouncement struct {
	// host enode url
	NetAddress string
	Signature  []byte
}

func (HostAnnouncement) RLPHash 

func (ha HostAnnouncement) RLPHash() common.Hash

RLPHash calculate the hash of HostAnnouncement

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 block
	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 MakeLogData 

func MakeLogData(blockNumber uint64, blockHash common.Hash, txHash common.Hash, txIndex uint, index uint) *Log

MakeLogData makes a random log data based on info given. Random fields are: Address, topics (with length topicLen), data (with random length).

func MakeRandomLogs 

func MakeRandomLogs(len int, blockNumber uint64, blockHash common.Hash, txHash common.Hash, txIndex uint, startIndex uint) []*Log

makeLogsData makes some Log data with totally random value of length len Parameters passed in will be within Log structure.

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) MarshalJSON 

func (l Log) MarshalJSON() ([]byte, error)

Log implements json.Marshaler

func (*Log) UnmarshalJSON 

func (l *Log) UnmarshalJSON(input []byte) error

Log implements json.Unmarshaller Only BlockNumber or BlockHash is not required

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 Message 

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

Message is a fully derived transaction and implements core.Message

NOTE: In a future PR this will be removed.

func NewMessage 

func NewMessage(from common.Address, to *common.Address, nonce uint64, amount *big.Int, gasLimit uint64, gasPrice *big.Int, data []byte, checkNonce bool) Message

func (Message) CheckNonce 

func (m Message) CheckNonce() bool

func (Message) Data 

func (m Message) Data() []byte

func (Message) From 

func (m Message) From() common.Address

func (Message) Gas 

func (m Message) Gas() uint64

func (Message) GasPrice 

func (m Message) GasPrice() *big.Int

func (Message) Nonce 

func (m Message) Nonce() uint64

func (Message) To 

func (m Message) To() *common.Address

func (Message) Value 

func (m Message) Value() *big.Int

type Receipt 

type Receipt struct {
	// Consensus fields
	PostState         []byte `json:"root"` // Take effect after Byzantium hard fork
	Status            uint64 `json:"status"`
	CumulativeGasUsed uint64 `json:"cumulativeGasUsed" gencodec:"required"`
	Bloom             Bloom  `json:"logsBloom"         gencodec:"required"`
	Logs              []*Log `json:"logs"              gencodec:"required"`

	// Implementation fields (don't reorder!)
	TxHash          common.Hash    `json:"transactionHash" gencodec:"required"`
	ContractAddress common.Address `json:"contractAddress"`
	GasUsed         uint64         `json:"gasUsed" gencodec:"required"`
}

Receipt represents the results of a transaction.

func MakeReceiptData 

func MakeReceiptData(txHash common.Hash, contractAddress common.Address) *Receipt

func NewReceipt 

func NewReceipt(root []byte, failed bool, cumulativeGasUsed uint64) *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. If no post state is present, byzantium fork is assumed.

func (Receipt) MarshalJSON 

func (r Receipt) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON.

func (*Receipt) Size 

func (r *Receipt) Size() common.StorageSize

size returns the approximate memory used by all internal contents. It is used to approximate and limit the memory consumption of various caches.

func (*Receipt) UnmarshalJSON 

func (r *Receipt) UnmarshalJSON(input []byte) error

UnmarshalJSON unmarshals from JSON.

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 DerivableList.

func MakeReceipts 

func MakeReceipts(len int, contractAddress common.Address) Receipts

makeReceiptsData make some random receipts

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 {
	// Sender returns the sender address of the transaction.
	Sender(tx *Transaction) (common.Address, error)
	// SignatureValues returns the raw R, S, V values corresponding to the
	// given signature.
	SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error)
	// Hash returns the hash to be signed.
	Hash(tx *Transaction) common.Hash
	// Equal returns true if the given signer is the same as the receiver.
	Equal(Signer) bool
}

Signer encapsulates transaction signature handling. Note that this interface is not a stable API and may change at any time to accommodate new protocol rules.

func MakeSigner 

func MakeSigner(config *params.ChainConfig, blockNumber *big.Int) Signer

MakeSigner returns a Signer based on the given chain config and block number. Three possible signers to be returned: FrontierSigner, HomesteadSigner, EIP155Signer.

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 StorageContract 

type StorageContract struct {
	// file part
	FileSize       uint64      `json:"filesize"`
	FileMerkleRoot common.Hash `json:"filemerkleroot"`
	WindowStart    uint64      `json:"windowstart"`
	WindowEnd      uint64      `json:"windowend"`

	// money part
	// original collateral
	ClientCollateral DxcoinCollateral `json:"client_deposit"`
	HostCollateral   DxcoinCollateral `json:"host_deposit"`

	// temporary book while file upload and download
	ValidProofOutputs  []DxcoinCharge `json:"validproofpayback"`
	MissedProofOutputs []DxcoinCharge `json:"missedproofpayback"`

	// lock the client and host for this storage contract
	UnlockHash     common.Hash `json:"unlockhash"`
	RevisionNumber uint64      `json:"revisionnumber"`
	Signatures     [][]byte
}

func (StorageContract) ID 

func (sc StorageContract) ID() common.Hash

ID calculate the ID of StorageContract

func (StorageContract) RLPHash 

func (sc StorageContract) RLPHash() common.Hash

RLPHash calculate the hash of StorageContract

type StorageContractRLPHash 

type StorageContractRLPHash interface {
	RLPHash() common.Hash
}

type StorageContractRevision 

type StorageContractRevision struct {
	ParentID              common.Hash      `json:"parentid"`
	UnlockConditions      UnlockConditions `json:"unlockconditions"`
	NewRevisionNumber     uint64           `json:"newrevisionnumber"`
	NewFileSize           uint64           `json:"newfilesize"`
	NewFileMerkleRoot     common.Hash      `json:"newfilemerkleroot"`
	NewWindowStart        uint64           `json:"newwindowstart"`
	NewWindowEnd          uint64           `json:"newwindowend"`
	NewValidProofOutputs  []DxcoinCharge   `json:"newvalidproofpayback"`
	NewMissedProofOutputs []DxcoinCharge   `json:"newmissedproofpayback"`
	NewUnlockHash         common.Hash      `json:"newunlockhash"`
	Signatures            [][]byte
}

func (StorageContractRevision) RLPHash 

func (scr StorageContractRevision) RLPHash() common.Hash

RLPHash calculate the hash of StorageContractRevision

type StorageProof 

type StorageProof struct {
	ParentID  common.Hash   `json:"parentid"`
	Segment   [64]byte      `json:"segment"`
	HashSet   []common.Hash `json:"hashset"`
	Signature []byte
}

func (StorageProof) RLPHash 

func (sp StorageProof) RLPHash() common.Hash

RLPHash calculate the hash of StorageProof

type Transaction 

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

func MakeRandomTransaction 

func MakeRandomTransaction() *Transaction

func NewContractCreation 

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

NewContractCreation create a new contract transaction. When a new contract is created, the to address is nil.

func NewTransaction 

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

NewContractCreation create a new transaction.

func SignTx 

func SignTx(tx *Transaction, s Signer, prv *ecdsa.PrivateKey) (*Transaction, error)

SignTx signs the transaction using the given signer and private key

func (*Transaction) AsMessage 

func (tx *Transaction) AsMessage(s Signer) (Message, error)

AsMessage returns the transaction as a core.Message.

AsMessage requires a signer to derive the sender.

XXX Rename message to something less arbitrary?

func (*Transaction) ChainId 

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

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

func (*Transaction) CheckNonce 

func (tx *Transaction) CheckNonce() bool

func (*Transaction) Cost 

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

Cost returns amount + gasprice * gaslimit.

func (*Transaction) Data 

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

Transaction attributes will return the copy of the original field value.

func (*Transaction) DecodeRLP 

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

DecodeRLP implements rlp.Decoder

func (*Transaction) EncodeRLP 

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

EncodeRLP implements rlp.Encoder

func (*Transaction) Gas 

func (tx *Transaction) Gas() uint64

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) MarshalJSON 

func (tx *Transaction) MarshalJSON() ([]byte, error)

MarshalJSON encodes the web3 RPC transaction format.

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. Protected == tx.data.V == 27 || 28

func (*Transaction) RawSignatureValues 

func (tx *Transaction) RawSignatureValues() (*big.Int, *big.Int, *big.Int)

func (*Transaction) Size 

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

size returns the true RLP encoded storage size of the transaction, either by encoding and returning it, or returning a previsouly cached value.

func (*Transaction) To 

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

To returns the recipient address of the transaction. It returns nil if the transaction is a contract creation.

func (*Transaction) UnmarshalJSON 

func (tx *Transaction) UnmarshalJSON(input []byte) error

UnmarshalJSON decodes the web3 RPC transaction format.

func (*Transaction) Value 

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

func (*Transaction) WithSignature 

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

WithSignature returns a new transaction with the given signature. This signature needs to be in the [R || S || V] format where V is 0 or 1. Notice this function will return a copy of the original Transaction.

type Transactions 

type Transactions []*Transaction

Transactions is a Transaction slice type for basic sorting.

func TxDifference 

func TxDifference(a, b Transactions) Transactions

TxDifference returns a new set which is the difference between a and b. Return a - b as a map

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 TransactionsByPriceAndNonce 

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

TransactionsByPriceAndNonce represents a set of transactions that can return transactions in a profit-maximizing sorted order, while supporting removing entire batches of transactions for non-executable accounts.

func NewTransactionsByPriceAndNonce 

func NewTransactionsByPriceAndNonce(signer Signer, txs map[common.Address]Transactions) *TransactionsByPriceAndNonce

NewTransactionsByPriceAndNonce creates a transaction set that can retrieve price sorted transactions in a nonce-honouring way.

Note, the input map is reowned so the caller should not interact any more with if after providing it to the constructor.

The input txs is a map of transactions with key of from address. The head is the first element of transactions with different keys. This structure is used pulling out the transaction with the largest Price in the head list.

func (*TransactionsByPriceAndNonce) Peek 

func (t *TransactionsByPriceAndNonce) Peek() *Transaction

Peek returns the next transaction by price.

func (*TransactionsByPriceAndNonce) Pop 

func (t *TransactionsByPriceAndNonce) Pop()

Pop removes the best transaction, *not* replacing it with the next one from the same account. This should be used when a transaction cannot be executed and hence all subsequent ones should be discarded from the same account.

func (*TransactionsByPriceAndNonce) Shift 

func (t *TransactionsByPriceAndNonce) Shift()

Shift replaces the current best head with the next one from the same account.

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)

type UnlockConditions 

type UnlockConditions struct {
	PaymentAddresses   []common.Address `json:"paymentaddress"`
	SignaturesRequired uint64           `json:"signaturesrequired"`
}

func (UnlockConditions) UnlockHash 

func (uc UnlockConditions) UnlockHash() common.Hash

UnlockHash calculate the hash of UnlockCondition

type VoteTxData 

type VoteTxData struct {
	Deposit    common.BigInt
	Candidates []common.Address
}

VoteTxData is the data field for VoteTx

func (*VoteTxData) DecodeRLP 

func (data *VoteTxData) DecodeRLP(s *rlp.Stream) error

DecodeRLP defines the rlp decoding rule for VoteTxData

func (*VoteTxData) EncodeRLP 

func (data *VoteTxData) EncodeRLP(w io.Writer) error

EncodeRLP defines the rlp encoding rule for VoteTxData

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