types

package
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 Go to latest Published: Feb 7, 2020 License: MIT Imports: 17 Imported by: 27

Documentation

Index

Constants

View Source 
const (
	// HashLength is the expected length of the hash
	Hash32Length = 32
	Hash20Length = 20
	Hash12Length = 12
)
View Source 
const (
	// AddressLength is the expected length of the address
	AddressLength = 20
)

Variables

View Source 
var (
	Big1   = big.NewInt(1)
	Big2   = big.NewInt(2)
	Big3   = big.NewInt(3)
	Big0   = big.NewInt(0)
	Big32  = big.NewInt(32)
	Big256 = big.NewInt(256)
	Big257 = big.NewInt(257)
)

Common big integers often used

View Source 
var EmptyAtxId = &AtxId{}
View Source 
var EmptyTransactionId = TransactionId{}

Functions

func BlockIdsAsBytes 

func BlockIdsAsBytes(ids []BlockID) ([]byte, error)

func BytesToInterface 

func BytesToInterface(buf []byte, i interface{}) error

⚠️ Pass the interface by reference

func InterfaceToBytes 

func InterfaceToBytes(i interface{}) ([]byte, error)

⚠️ Pass the interface by reference

func IsProcessingError 

func IsProcessingError(err error) bool

func NIPSTChallengeAsBytes 

func NIPSTChallengeAsBytes(challenge *NIPSTChallenge) ([]byte, error)

func TxIdsAsBytes 

func TxIdsAsBytes(ids []TransactionId) ([]byte, error)

Types

type ActivationTx 

type ActivationTx struct {
	*InnerActivationTx
	Sig []byte
}

func BytesAsAtx 

func BytesAsAtx(b []byte) (*ActivationTx, error)

func NewActivationTx 

func NewActivationTx(nipstChallenge NIPSTChallenge, coinbase Address, activeSetSize uint32, view []BlockID,
	nipst *NIPST, commitment *PostProof) *ActivationTx

func NewActivationTxForTests 

func NewActivationTxForTests(nodeId NodeId, sequence uint64, prevATX AtxId, pubLayerId LayerID, startTick uint64,
	positioningAtx AtxId, coinbase Address, activeSetSize uint32, view []BlockID, nipst *NIPST) *ActivationTx

func (*ActivationTx) AtxBytes 

func (atx *ActivationTx) AtxBytes() ([]byte, error)

func (*ActivationTx) CalcAndSetId 

func (atx *ActivationTx) CalcAndSetId()

func (*ActivationTx) GetPoetProofRef 

func (atx *ActivationTx) GetPoetProofRef() []byte

func (*ActivationTx) GetShortPoetProofRef 

func (atx *ActivationTx) GetShortPoetProofRef() []byte

type ActivationTxHeader 

type ActivationTxHeader struct {
	NIPSTChallenge

	Coinbase      Address
	ActiveSetSize uint32
	// contains filtered or unexported fields
}

func (*ActivationTxHeader) Bytes 

func (atxh *ActivationTxHeader) Bytes() []byte

func (*ActivationTxHeader) Hash32 

func (atxh *ActivationTxHeader) Hash32() Hash32

func (*ActivationTxHeader) Id 

func (atxh *ActivationTxHeader) Id() AtxId

func (*ActivationTxHeader) SetId 

func (atxh *ActivationTxHeader) SetId(id *AtxId)

func (*ActivationTxHeader) ShortString 

func (atxh *ActivationTxHeader) ShortString() string

func (*ActivationTxHeader) TargetEpoch 

func (atxh *ActivationTxHeader) TargetEpoch(layersPerEpoch uint16) EpochId

type Address 

type Address [AddressLength]byte

Address represents the 20 byte address of an spacemesh account.

func BigToAddress 

func BigToAddress(b *big.Int) Address

BigToAddress returns Address with byte values of b. If b is larger than len(h), b will be cropped from the left.

func BytesToAddress 

func BytesToAddress(b []byte) Address

BytesToAddress returns Address with value b. If b is larger than len(h), b will be cropped from the left.

func HexToAddress 

func HexToAddress(s string) Address

HexToAddress returns Address with byte values of s. If s is larger than len(h), s will be cropped from the left.

func StringToAddress 

func StringToAddress(s string) (Address, error)

func (Address) Big 

func (a Address) Big() *big.Int

Big converts an address to a big integer.

func (Address) Bytes 

func (a Address) Bytes() []byte

Bytes gets the string representation of the underlying address.

func (Address) Format 

func (a Address) Format(s fmt.State, c rune)

Format implements fmt.Formatter, forcing the byte slice to be formatted as is, without going through the stringer interface used for logging.

func (Address) Hash 

func (a Address) Hash() Hash32

Hash converts an address to a hash by left-padding it with zeros.

func (Address) Hex 

func (a Address) Hex() string

Hex returns an EIP55-compliant hex string representation of the address.

func (*Address) SetBytes 

func (a *Address) SetBytes(b []byte)

SetBytes sets the address to the value of b. If b is larger than len(a) it will panic.

func (Address) Short 

func (a Address) Short() string

String implements fmt.Stringer.

func (Address) String 

func (a Address) String() string

String implements fmt.Stringer.

type AtxId 

type AtxId Hash32

func (AtxId) Bytes 

func (t AtxId) Bytes() []byte

func (*AtxId) Hash32 

func (t *AtxId) Hash32() Hash32

func (*AtxId) ShortString 

func (t *AtxId) ShortString() string

type Block 

type Block struct {
	MiniBlock

	Signature []byte
	// contains filtered or unexported fields
}

func NewExistingBlock 

func NewExistingBlock(layerIndex LayerID, data []byte) *Block

func SortBlocks 

func SortBlocks(ids []*Block) []*Block

func (*Block) Bytes 

func (t *Block) Bytes() []byte

func (*Block) CalcAndSetId 

func (b *Block) CalcAndSetId()

should be used after all changed to a block are done

func (*Block) Compare 

func (b *Block) Compare(bl *Block) (bool, error)

func (*Block) Data 

func (t *Block) Data() interface{}

func (Block) Hash32 

func (b Block) Hash32() Hash32

func (*Block) Id 

func (b *Block) Id() BlockID

func (Block) ShortString 

func (b Block) ShortString() string

func (*Block) Sig 

func (t *Block) Sig() []byte

type BlockEligibilityProof 

type BlockEligibilityProof struct {
	J   uint32
	Sig []byte
}

type BlockHeader 

type BlockHeader struct {
	LayerIndex       LayerID
	ATXID            AtxId
	EligibilityProof BlockEligibilityProof
	Data             []byte
	Coin             bool
	Timestamp        int64
	BlockVotes       []BlockID
	ViewEdges        []BlockID
}

func (*BlockHeader) AddView 

func (b *BlockHeader) AddView(id BlockID)

func (*BlockHeader) AddVote 

func (b *BlockHeader) AddVote(id BlockID)

func (BlockHeader) Layer 

func (b BlockHeader) Layer() LayerID

type BlockID 

type BlockID Hash20

func BlockIds 

func BlockIds(blocks []*Block) []BlockID

func BytesToBlockIds 

func BytesToBlockIds(blockIds []byte) ([]BlockID, error)

func SortBlockIds 

func SortBlockIds(ids []BlockID) []BlockID

func (BlockID) AsHash32 

func (id BlockID) AsHash32() Hash32

func (BlockID) Compare 

func (id BlockID) Compare(i BlockID) bool

func (BlockID) String 

func (id BlockID) String() string

func (BlockID) ToBytes 

func (id BlockID) ToBytes() []byte

type DoubleCache 

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

Thread safe

func NewDoubleCache 

func NewDoubleCache(size uint) *DoubleCache

func (*DoubleCache) Get 

func (a *DoubleCache) Get(key Hash12) bool

func (*DoubleCache) GetOrInsert 

func (a *DoubleCache) GetOrInsert(key Hash12) bool

Checks if a value is already in the cache, otherwise add it. Returns bool whether or not the value was found in the cache (true - already in cache, false - not in cache)

type DoubleResultCache 

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

Thread safe

func NewDoubleResultCache 

func NewDoubleResultCache(size uint) *DoubleResultCache

func (*DoubleResultCache) Get 

func (a *DoubleResultCache) Get(key Hash12) (result bool, exist bool)

Checks if a value is already in the cache. Returns 2 bools - result - (only) in case the key was found (exist == true), returns the value exist - saying whether or not the value was found in the cache (true - already in cache, false - not in cache)

func (*DoubleResultCache) GetOrInsert 

func (a *DoubleResultCache) GetOrInsert(key Hash12, val bool) (result bool, exist bool, err error)

Checks if a value is already in the cache, otherwise add it. Returns 2 bools - result - (only) in case the key was found (exist == true), returns the value exist - saying whether or not the value was found in the cache (true - already in cache, false - not in cache) err - inconsistent state, other outputs should be ignored

type EpochId 

type EpochId uint64

func (EpochId) FirstLayer 

func (l EpochId) FirstLayer(layersPerEpoch uint16) LayerID

func (EpochId) IsGenesis 

func (l EpochId) IsGenesis() bool

func (EpochId) ToBytes 

func (l EpochId) ToBytes() []byte

type Hash12 

type Hash12 [Hash12Length]byte

Hash represents the first 12 bytes of sha256, mostly used for internal caches

func CalcAtxsHash12 

func CalcAtxsHash12(ids []AtxId) (Hash12, error)

func CalcBlocksHash12 

func CalcBlocksHash12(view []BlockID) (Hash12, error)

func CalcHash12 

func CalcHash12(data []byte) Hash12

func CalcMessageHash12 

func CalcMessageHash12(msg []byte, prot string) Hash12

func CalcTxsHash12 

func CalcTxsHash12(ids []TransactionId) (Hash12, error)

type Hash20 

type Hash20 [Hash20Length]byte

Hash represents the 20 byte Keccak256 hash of arbitrary data.

func (Hash20) Big 

func (h Hash20) Big() *big.Int

Big converts a hash to a big integer.

func (Hash20) Bytes 

func (h Hash20) Bytes() []byte

Bytes gets the byte representation of the underlying hash.

func (Hash20) Format 

func (h Hash20) Format(s fmt.State, c rune)

Format implements fmt.Formatter, forcing the byte slice to be formatted as is, without going through the stringer interface used for logging.

func (Hash20) Hex 

func (h Hash20) Hex() string

Hex converts a hash to a hex string.

func (Hash20) MarshalText 

func (h Hash20) MarshalText() ([]byte, error)

MarshalText returns the hex representation of h.

func (*Hash20) SetBytes 

func (h *Hash20) SetBytes(b []byte)

SetBytes sets the hash to the value of b. If b is larger than len(h), b will be cropped from the left.

func (Hash20) ShortString 

func (h Hash20) ShortString() string

func (Hash20) String 

func (h Hash20) String() string

String implements the stringer interface and is used also by the logger when doing full logging into a file.

func (Hash20) ToHash32 

func (h Hash20) ToHash32() Hash32

func (*Hash20) UnmarshalJSON 

func (h *Hash20) UnmarshalJSON(input []byte) error

UnmarshalJSON parses a hash in hex syntax.

func (*Hash20) UnmarshalText 

func (h *Hash20) UnmarshalText(input []byte) error

UnmarshalText parses a hash in hex syntax.

type Hash32 

type Hash32 [Hash32Length]byte

Hash represents the 32 byte Keccak256 hash of arbitrary data.

func BigToHash 

func BigToHash(b *big.Int) Hash32

BigToHash sets byte representation of b to hash. If b is larger than len(h), b will be cropped from the left.

func BytesToHash 

func BytesToHash(b []byte) Hash32

BytesToHash sets b to hash. If b is larger than len(h), b will be cropped from the left.

func CalcAtxHash32 

func CalcAtxHash32(atx *ActivationTx) Hash32

func CalcBlockHash32Presorted 

func CalcBlockHash32Presorted(sortedView []BlockID, additionalBytes []byte) Hash32

func CalcBlocksHash32 

func CalcBlocksHash32(view []BlockID, additionalBytes []byte) Hash32

func CalcHash32 

func CalcHash32(data []byte) Hash32

func HexToHash32 

func HexToHash32(s string) Hash32

HexToHash sets byte representation of s to hash. If b is larger than len(h), b will be cropped from the left.

func (Hash32) Big 

func (h Hash32) Big() *big.Int

Big converts a hash to a big integer.

func (Hash32) Bytes 

func (h Hash32) Bytes() []byte

Bytes gets the byte representation of the underlying hash.

func (Hash32) Format 

func (h Hash32) Format(s fmt.State, c rune)

Format implements fmt.Formatter, forcing the byte slice to be formatted as is, without going through the stringer interface used for logging.

func (Hash32) Generate 

func (h Hash32) Generate(rand *rand.Rand, size int) reflect.Value

Generate implements testing/quick.Generator.

func (Hash32) Hex 

func (h Hash32) Hex() string

Hex converts a hash to a hex string.

func (Hash32) MarshalText 

func (h Hash32) MarshalText() ([]byte, error)

MarshalText returns the hex representation of h.

func (*Hash32) Scan 

func (h *Hash32) Scan(src interface{}) error

Scan implements Scanner for database/sql.

func (*Hash32) SetBytes 

func (h *Hash32) SetBytes(b []byte)

SetBytes sets the hash to the value of b. If b is larger than len(h), b will be cropped from the left.

func (Hash32) ShortString 

func (h Hash32) ShortString() string

func (Hash32) String 

func (h Hash32) String() string

String implements the stringer interface and is used also by the logger when doing full logging into a file.

func (Hash32) TerminalString 

func (h Hash32) TerminalString() string

TerminalString implements log.TerminalStringer, formatting a string for console output during logging.

func (Hash32) ToHash20 

func (h Hash32) ToHash20() Hash20

func (*Hash32) UnmarshalJSON 

func (h *Hash32) UnmarshalJSON(input []byte) error

UnmarshalJSON parses a hash in hex syntax.

func (*Hash32) UnmarshalText 

func (h *Hash32) UnmarshalText(input []byte) error

UnmarshalText parses a hash in hex syntax.

type InnerActivationTx 

type InnerActivationTx struct {
	*ActivationTxHeader
	Nipst      *NIPST
	View       []BlockID
	Commitment *PostProof
}

type InnerTransaction 

type InnerTransaction struct {
	AccountNonce uint64
	Recipient    Address
	GasLimit     uint64
	Fee          uint64
	Amount       uint64
}

type Layer 

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

func NewExistingLayer 

func NewExistingLayer(idx LayerID, blocks []*Block) *Layer

func NewLayer 

func NewLayer(layerIndex LayerID) *Layer

func (*Layer) AddBlock 

func (l *Layer) AddBlock(block *Block)

func (*Layer) Blocks 

func (l *Layer) Blocks() []*Block

func (*Layer) Hash 

func (l *Layer) Hash() Hash32

func (*Layer) Index 

func (l *Layer) Index() LayerID

func (*Layer) SetBlocks 

func (l *Layer) SetBlocks(blocks []*Block)

func (*Layer) SetIndex 

func (l *Layer) SetIndex() LayerID

type LayerID 

type LayerID uint64

func (LayerID) Add 

func (l LayerID) Add(layers uint16) LayerID

func (LayerID) GetEpoch 

func (l LayerID) GetEpoch(layersPerEpoch uint16) EpochId

func (LayerID) ToBytes 

func (l LayerID) ToBytes() []byte

func (LayerID) Uint64 

func (l LayerID) Uint64() uint64

type MiniBlock 

type MiniBlock struct {
	BlockHeader
	TxIds  []TransactionId
	AtxIds []AtxId
}

type NIPST 

type NIPST struct {
	// space is the amount of storage which the prover
	// requires to dedicate for generating the NIPST.
	Space uint64

	// nipstChallenge is the challenge for PoET which is
	// constructed from fields in the activation transaction.
	NipstChallenge *Hash32

	// postProof is the proof that the prover data
	// is still stored (or was recomputed).
	PostProof *PostProof
}

NIPST is Non-Interactive Proof of Space-Time. Given an id, a space parameter S, a duration D and a challenge C, it can convince a verifier that (1) the prover expended S * D space-time after learning the challenge C. (2) the prover did not know the NIPST until D time after the prover learned C.

type NIPSTChallenge 

type NIPSTChallenge struct {
	NodeId               NodeId
	Sequence             uint64
	PrevATXId            AtxId
	PubLayerIdx          LayerID
	StartTick            uint64
	EndTick              uint64
	PositioningAtx       AtxId
	CommitmentMerkleRoot []byte
}

func (*NIPSTChallenge) Hash 

func (challenge *NIPSTChallenge) Hash() (*Hash32, error)

func (*NIPSTChallenge) String 

func (challenge *NIPSTChallenge) String() string

type NodeId 

type NodeId struct {
	Key          string
	VRFPublicKey []byte
}

func (NodeId) ShortString 

func (id NodeId) ShortString() string

func (NodeId) String 

func (id NodeId) String() string

func (NodeId) ToBytes 

func (id NodeId) ToBytes() []byte

type PoetProof 

type PoetProof struct {
	shared.MerkleProof
	Members   [][]byte
	LeafCount uint64
}

type PoetProofMessage 

type PoetProofMessage struct {
	PoetProof
	PoetServiceId []byte
	RoundId       string
	Signature     []byte
}

func (PoetProofMessage) Ref 

func (proofMessage PoetProofMessage) Ref() ([]byte, error)

type PoetRound 

type PoetRound struct {
	Id string
}

type PostProof 

type PostProof proving.Proof

func (*PostProof) String 

func (p *PostProof) String() string

type ProcessingError 

type ProcessingError string

func (ProcessingError) Error 

func (s ProcessingError) Error() string

type Reward 

type Reward struct {
	Layer               LayerID
	TotalReward         uint64
	LayerRewardEstimate uint64
}

type Signed 

type Signed interface {
	Sig() []byte
	Bytes() []byte
	Data() interface{}
}

type StorageSize 

type StorageSize float64

StorageSize is a wrapper around a float value that supports user friendly formatting.

func (StorageSize) String 

func (s StorageSize) String() string

String implements the stringer interface.

func (StorageSize) TerminalString 

func (s StorageSize) TerminalString() string

TerminalString implements log.TerminalStringer, formatting a string for console output during logging.

type Transaction 

type Transaction struct {
	InnerTransaction
	Signature [64]byte
	// contains filtered or unexported fields
}

func BytesAsTransaction 

func BytesAsTransaction(buf []byte) (*Transaction, error)

func (*Transaction) CalcAndSetOrigin 

func (t *Transaction) CalcAndSetOrigin() error

func (*Transaction) Hash32 

func (t *Transaction) Hash32() Hash32

func (*Transaction) Id 

func (t *Transaction) Id() TransactionId

func (*Transaction) Origin 

func (t *Transaction) Origin() Address

func (*Transaction) SetOrigin 

func (t *Transaction) SetOrigin(origin Address)

func (*Transaction) ShortString 

func (t *Transaction) ShortString() string

func (*Transaction) String 

func (t *Transaction) String() string

type TransactionId 

type TransactionId Hash32

func (TransactionId) Bytes 

func (id TransactionId) Bytes() []byte

func (TransactionId) Hash32 

func (id TransactionId) Hash32() Hash32

func (TransactionId) ShortString 

func (id TransactionId) ShortString() string

func (TransactionId) String 

func (id TransactionId) String() string

type Vrf 

type Vrf string

todo: choose which type is VRF

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