stateutil

package
v0.0.0-...-0064a47 Latest Latest
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 Go to latest Published: Aug 26, 2024 License: GPL-3.0 Imports: 19 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AddInMixin 

func AddInMixin(root [32]byte, length uint64) ([32]byte, error)

AddInMixin describes a method from which a length mixin is added to the provided root.

func ArraysRoot 

func ArraysRoot(input [][]byte, length uint64) ([32]byte, error)

func BlockHeaderRoot 

func BlockHeaderRoot(header *ethpb.BeaconBlockHeader) ([32]byte, error)

BlockHeaderRoot computes the HashTreeRoot Merkleization of a BeaconBlockHeader struct according to the Ethereum Simple Serialize specification.

func EpochAttestationsRoot 

func EpochAttestationsRoot(atts []*ethpb.PendingAttestation) ([32]byte, error)

func Eth1DataRootWithHasher 

func Eth1DataRootWithHasher(eth1Data *ethpb.Eth1Data) ([32]byte, error)

Eth1DataRootWithHasher returns the hash tree root of input `eth1Data`.

func Eth1DataVotesRoot 

func Eth1DataVotesRoot(eth1DataVotes []*ethpb.Eth1Data) ([32]byte, error)

Eth1DataVotesRoot computes the HashTreeRoot Merkleization of a list of Eth1Data structs according to the eth2 Simple Serialize specification.

func Eth1DatasRoot 

func Eth1DatasRoot(eth1Datas []*ethpb.Eth1Data) ([32]byte, error)

Eth1DatasRoot returns the hash tree root of input `eth1Datas`.

func Eth1Root 

func Eth1Root(eth1Data *ethpb.Eth1Data) ([32]byte, error)

Eth1Root computes the HashTreeRoot Merkleization of a BeaconBlockHeader struct according to the eth2 Simple Serialize specification.

func HistoricalSummariesRoot 

func HistoricalSummariesRoot(summaries []*ethpb.HistoricalSummary) ([32]byte, error)

func Merkleize 

func Merkleize(leaves [][]byte) [][][]byte

Merkleize 32-byte leaves into a Merkle trie for its adequate depth, returning the resulting layers of the trie based on the appropriate depth. This function pads the leaves to a length of 32.

func MerkleizeTrieLeaves 

func MerkleizeTrieLeaves(layers [][][32]byte, hashLayer [][32]byte) ([][][32]byte, [][32]byte, error)

MerkleizeTrieLeaves merkleize the trie leaves.

func OptimizedValidatorRoots 

func OptimizedValidatorRoots(validators []*ethpb.Validator) ([][32]byte, error)

OptimizedValidatorRoots uses an optimized routine with gohashtree in order to derive a list of validator roots from a list of validator objects.

func PackUint64IntoChunks 

func PackUint64IntoChunks(vals []uint64) ([][32]byte, error)

PackUint64IntoChunks packs a list of uint64 values into 32 byte roots.

func ParticipationBitsRoot 

func ParticipationBitsRoot(bits []byte) ([32]byte, error)

ParticipationBitsRoot computes the HashTreeRoot merkleization of participation roots.

func PendingAttRootWithHasher 

func PendingAttRootWithHasher(att *ethpb.PendingAttestation) ([32]byte, error)

PendingAttRootWithHasher describes a method from which the hash tree root of a pending attestation is returned.

func RecomputeFromLayer 

func RecomputeFromLayer(changedLeaves [][32]byte, changedIdx []uint64, layer [][]*[32]byte) ([32]byte, [][]*[32]byte, error)

RecomputeFromLayer recomputes specific branches of a fixed sized trie depending on the provided changed indexes.

func RecomputeFromLayerVariable 

func RecomputeFromLayerVariable(changedLeaves [][32]byte, changedIdx []uint64, layer [][]*[32]byte) ([32]byte, [][]*[32]byte, error)

RecomputeFromLayerVariable recomputes specific branches of a variable sized trie depending on the provided changed indexes.

func ReturnTrieLayer 

func ReturnTrieLayer(elements [][32]byte, length uint64) ([][]*[32]byte, error)

ReturnTrieLayer returns the representation of a merkle trie when provided with the elements of a fixed sized trie and the corresponding depth of it.

func ReturnTrieLayerVariable 

func ReturnTrieLayerVariable(elements [][32]byte, length uint64) [][]*[32]byte

ReturnTrieLayerVariable returns the representation of a merkle trie when provided with the elements of a variable sized trie and the corresponding depth of it.

func RootsArrayHashTreeRoot 

func RootsArrayHashTreeRoot(vals [][]byte, length uint64) ([32]byte, error)

RootsArrayHashTreeRoot computes the Merkle root of arrays of 32-byte hashes, such as [64][32]byte according to the Simple Serialize specification of Ethereum.

func SyncCommitteeRoot 

func SyncCommitteeRoot(committee *ethpb.SyncCommittee) ([32]byte, error)

SyncCommitteeRoot computes the HashTreeRoot Merkleization of a committee root. a SyncCommitteeRoot struct according to the eth2 Simple Serialize specification.

func Uint64ListRootWithRegistryLimit 

func Uint64ListRootWithRegistryLimit(balances []uint64) ([32]byte, error)

Uint64ListRootWithRegistryLimit computes the HashTreeRoot Merkleization of a list of uint64 and mixed with registry limit.

func UnrealizedCheckpointBalances 

func UnrealizedCheckpointBalances(cp, pp []byte, validators ValReader, currentEpoch primitives.Epoch) (uint64, uint64, uint64, error)

UnrealizedCheckpointBalances returns the total current active balance, the total previous epoch correctly attested for target balance, and the total current epoch correctly attested for target balance. It takes the current and previous epoch participation bits as parameters so implicitly only works for beacon states post-Altair.

func ValidatorFieldRoots 

func ValidatorFieldRoots(validator *ethpb.Validator) ([][32]byte, error)

ValidatorFieldRoots describes a method from which the hash tree root of a validator is returned.

func ValidatorLimitForBalancesChunks 

func ValidatorLimitForBalancesChunks() uint64

ValidatorLimitForBalancesChunks returns the limit of validators after going through the chunking process.

func ValidatorRegistryRoot 

func ValidatorRegistryRoot(vals []*ethpb.Validator) ([32]byte, error)

ValidatorRegistryRoot computes the HashTreeRoot Merkleization of a list of validator structs according to the Ethereum Simple Serialize specification.

func ValidatorRootWithHasher 

func ValidatorRootWithHasher(validator *ethpb.Validator) ([32]byte, error)

ValidatorRootWithHasher describes a method from which the hash tree root of a validator is returned.

Types

type Reference 

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

Reference structs are shared across BeaconState copies to understand when the state must use copy-on-write for shared fields or may modify a field in place when it holds the only reference to the field value. References are tracked in a map of fieldIndex -> *reference. Whenever a state releases their reference to the field value, they must decrement the refs. Likewise whenever a copy is performed then the state must increment the refs counter.

func NewRef 

func NewRef(refs uint) *Reference

NewRef initializes the Reference struct.

func (*Reference) AddRef 

func (r *Reference) AddRef()

AddRef adds 1 to the reference number.

func (*Reference) MinusRef 

func (r *Reference) MinusRef()

MinusRef subtracts 1 to the reference number.

func (*Reference) Refs 

func (r *Reference) Refs() uint

Refs returns the reference number.

type ValMultiValueSliceReader 

type ValMultiValueSliceReader struct {
	ValMVSlice *multi_value_slice.Slice[*ethpb.Validator]
	Identifier multi_value_slice.Identifiable
}

ValMultiValueSliceReader describes a struct that conforms to the ValReader interface. This struct is specifically designed for accessing validator data from a multivalue slice.

func NewValMultiValueSliceReader 

func NewValMultiValueSliceReader(valSlice *multi_value_slice.Slice[*ethpb.Validator],
	identifier multi_value_slice.Identifiable) ValMultiValueSliceReader

NewValMultiValueSliceReader constructs a new val reader object.

func (ValMultiValueSliceReader) At 

func (v ValMultiValueSliceReader) At(i int) (*ethpb.Validator, error)

At returns the validator at the provided index.

func (ValMultiValueSliceReader) Len 

func (v ValMultiValueSliceReader) Len() int

Len is the length of the validator registry.

type ValReader 

type ValReader interface {
	Len() int
	At(i int) (*ethpb.Validator, error)
}

ValReader specifies an interface through which we can access the validator registry.

type ValSliceReader 

type ValSliceReader struct {
	Validators []*ethpb.Validator
}

ValSliceReader describes a struct that conforms to the ValReader interface

func NewValSliceReader 

func NewValSliceReader(vals []*ethpb.Validator) ValSliceReader

NewValSliceReader constructs a ValSliceReader object.

func (ValSliceReader) At 

func (v ValSliceReader) At(i int) (*ethpb.Validator, error)

At returns the validator at the provided index.

func (ValSliceReader) Len 

func (v ValSliceReader) Len() int

Len is the length of the validator registry.

type ValidatorMapHandler 

type ValidatorMapHandler struct {
	*sync.RWMutex
	// contains filtered or unexported fields
}

ValidatorMapHandler is a container to hold the map and a reference tracker for how many states shared this.

func NewValMapHandler 

func NewValMapHandler(vals []*ethpb.Validator) *ValidatorMapHandler

NewValMapHandler returns a new validator map handler.

func (*ValidatorMapHandler) AddRef 

func (v *ValidatorMapHandler) AddRef()

AddRef copies the whole map and returns a map handler with the copied map.

func (*ValidatorMapHandler) Get 

func (v *ValidatorMapHandler) Get(key [fieldparams.BLSPubkeyLength]byte) (primitives.ValidatorIndex, bool)

Get the validator index using the corresponding public key.

func (*ValidatorMapHandler) IsNil 

func (v *ValidatorMapHandler) IsNil() bool

IsNil returns true if the underlying validator index map is nil.

func (*ValidatorMapHandler) Set 

func (v *ValidatorMapHandler) Set(key [fieldparams.BLSPubkeyLength]byte, index primitives.ValidatorIndex)

Set the validator index using the corresponding public key.

Source Files

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