attestations

package
v0.8.3 Latest Latest
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 Go to latest Published: Sep 5, 2019 License: MIT Imports: 10 Imported by: 0

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Index

Constants

This section is empty.

Variables

View Source 
var AttestationDataAndCustodyBitSSZ = zssz.GetSSZ((*AttestationDataAndCustodyBit)(nil))
View Source 
var AttestationSSZ = zssz.GetSSZ((*Attestation)(nil))

Functions

This section is empty.

Types

type Attestation 

type Attestation struct {
	AggregationBits CommitteeBits
	Data            AttestationData
	CustodyBits     CommitteeBits
	Signature       BLSSignature
}

func (*Attestation) ConvertToIndexed 

func (attestation *Attestation) ConvertToIndexed(committee []ValidatorIndex) (*IndexedAttestation, error)

Convert attestation to (almost) indexed-verifiable form

type AttestationData 

type AttestationData struct {
	// LMD GHOST vote
	BeaconBlockRoot Root

	// FFG vote
	Source Checkpoint
	Target Checkpoint

	// Crosslink vote
	Crosslink Crosslink
}

func (*AttestationData) GetAttestationSlot 

func (attData *AttestationData) GetAttestationSlot(m AttestationSlotMeta) Slot

type AttestationDataAndCustodyBit 

type AttestationDataAndCustodyBit struct {
	Data       AttestationData
	CustodyBit bool // Challengeable bit (SSZ-bool, 1 byte) for the custody of crosslink data
}

type AttestationDeltasFeature 

type AttestationDeltasFeature struct {
	Meta interface {
		meta.Versioning
		meta.RegistrySize
		meta.Staking
		meta.EffectiveBalances
		meta.AttesterStatuses
		meta.Finality
	}
}

func (*AttestationDeltasFeature) AttestationDeltas 

func (f *AttestationDeltasFeature) AttestationDeltas() *Deltas

type AttestationFeature 

type AttestationFeature struct {
	State *AttestationsState
	Meta  interface {
		meta.Versioning
		meta.CrosslinkCommittees
		meta.CrosslinkTiming
		meta.CommitteeCount
		meta.Crosslinks
		meta.Finality
		meta.RegistrySize
		meta.Pubkeys
		meta.Proposers
	}
}

func (*AttestationFeature) ProcessAttestation 

func (f *AttestationFeature) ProcessAttestation(attestation *Attestation) error

func (*AttestationFeature) ProcessAttestations 

func (f *AttestationFeature) ProcessAttestations(ops []Attestation) error

type AttestationProcessor 

type AttestationProcessor interface {
	ProcessAttestations(ops []Attestation) error
	ProcessAttestation(attestation *Attestation) error
}

type AttestationSlotMeta 

type AttestationSlotMeta interface {
	meta.CrosslinkTiming
	meta.CommitteeCount
}

type AttestationValidator 

type AttestationValidator interface {
	meta.RegistrySize
	meta.Pubkeys
	meta.Versioning
}

type AttestationsState 

type AttestationsState struct {
	PreviousEpochAttestations EpochPendingAttestations
	CurrentEpochAttestations  EpochPendingAttestations
}

func (*AttestationsState) RotateEpochAttestations 

func (state *AttestationsState) RotateEpochAttestations()

Rotate current/previous epoch attestations

type AttesterStatusFeature 

type AttesterStatusFeature struct {
	State *AttestationsState
	Meta  interface {
		meta.Versioning
		meta.RegistrySize
		meta.CrosslinkTiming
		meta.CommitteeCount
		meta.CrosslinkCommittees
		meta.EffectiveBalances
		meta.History
		meta.SlashedIndices
		meta.ActiveIndices
		meta.ValidatorEpochData
	}
}

func (*AttesterStatusFeature) LoadAttesterStatuses 

func (f *AttesterStatusFeature) LoadAttesterStatuses() (out *AttestersData)

type AttestersData 

type AttestersData struct {
	Epoch          Epoch
	Statuses       []AttesterStatus
	TotalStake     Gwei
	PrevTotalStake EpochStake
	CurrTotalStake EpochStake
}

func (AttestersData) GetAttesterStatus 

func (atd AttestersData) GetAttesterStatus(index ValidatorIndex) AttesterStatus

func (AttestersData) GetTotalEpochStake 

func (atd AttestersData) GetTotalEpochStake(epoch Epoch) EpochStake

func (AttestersData) GetTotalStake 

func (atd AttestersData) GetTotalStake() Gwei

type CommitteeBits 

type CommitteeBits []byte

func (CommitteeBits) BitLen 

func (cb CommitteeBits) BitLen() uint64

func (CommitteeBits) FilterNonParticipants 

func (cb CommitteeBits) FilterNonParticipants(committee []ValidatorIndex) []ValidatorIndex

In-place filters a list of committees indices to only keep the bitfield NON-participants. The result is not sorted. Returns the re-sliced filtered non-participants list.

func (CommitteeBits) FilterParticipants 

func (cb CommitteeBits) FilterParticipants(committee []ValidatorIndex) []ValidatorIndex

In-place filters a list of committees indices to only keep the bitfield participants. The result is not sorted. Returns the re-sliced filtered participants list.

func (CommitteeBits) GetBit 

func (cb CommitteeBits) GetBit(i uint64) bool

func (*CommitteeBits) Limit 

func (cb *CommitteeBits) Limit() uint64

func (CommitteeBits) Or 

func (cb CommitteeBits) Or(other CommitteeBits)

Sets the bits to true that are true in other. (in place)

func (CommitteeBits) SetBit 

func (cb CommitteeBits) SetBit(i uint64, v bool)

type CommitteeIndices 

type CommitteeIndices []ValidatorIndex

func (*CommitteeIndices) Limit 

func (ci *CommitteeIndices) Limit() uint64

type CrosslinkingEpoch 

type CrosslinkingEpoch struct {
	Epoch        Epoch
	WinningLinks [SHARD_COUNT]LinkWinner
}

type CrosslinkingFeature 

type CrosslinkingFeature struct {
	State *AttestationsState
	Meta  interface {
		meta.Versioning
		meta.Crosslinks
		meta.EffectiveBalances
		meta.CrosslinkCommittees
		meta.SlashedIndices
	}
}

func (*CrosslinkingFeature) LoadCrosslinkEpoch 

func (f *CrosslinkingFeature) LoadCrosslinkEpoch(epoch Epoch) *CrosslinkingEpoch

func (*CrosslinkingFeature) LoadCrosslinkingStatus 

func (f *CrosslinkingFeature) LoadCrosslinkingStatus() *CrosslinkingStatus

type CrosslinkingStatus 

type CrosslinkingStatus struct {
	Previous *CrosslinkingEpoch
	Current  *CrosslinkingEpoch
}

func (*CrosslinkingStatus) GetWinningCrosslinkAndAttesters 

func (s *CrosslinkingStatus) GetWinningCrosslinkAndAttesters(epoch Epoch, shard Shard) (*Crosslink, ValidatorSet)

type EpochPendingAttestations 

type EpochPendingAttestations []*PendingAttestation

func (*EpochPendingAttestations) Limit 

func (*EpochPendingAttestations) Limit() uint64

type IndexedAttestation 

type IndexedAttestation struct {
	// Indices with custody bit equal to 0
	CustodyBit0Indices CommitteeIndices
	// Indices with custody bit equal to 1
	CustodyBit1Indices CommitteeIndices

	Data      AttestationData
	Signature BLSSignature
}

func (*IndexedAttestation) Validate 

func (indexedAttestation *IndexedAttestation) Validate(m AttestationValidator) error

Verify validity of slashable_attestation fields.

type LinkWinner 

type LinkWinner struct {
	Crosslink *Crosslink   // nil when there are no crosslinks for the shard.
	Attesters ValidatorSet // nil-slice when there are no attestations for the shard.
}

type PendingAttestation 

type PendingAttestation struct {
	AggregationBits CommitteeBits
	Data            AttestationData
	InclusionDelay  Slot
	ProposerIndex   ValidatorIndex
}

Source Files

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