util

Documentation

Index

• Variables
• func CalcEligibleLayer(epochNumber types.EpochID, layersPerEpoch uint32, vrfSig []byte) types.LayerID
• func ComputeWeightPerEligibility(cdb *datastore.CachedDB, ballot *types.Ballot, ...) (*big.Rat, error)
• func GetNumEligibleSlots(weight, totalWeight uint64, committeeSize uint32, layersPerEpoch uint32) (uint32, error)

Variables

var (
	// ErrZeroTotalWeight is returned when zero total epoch weight is used when calculating eligible slots.
	ErrZeroTotalWeight = errors.New("zero total weight not allowed")

	ErrBadBallotData = errors.New("bad ballot data")
)

Functions

func CalcEligibleLayer

func CalcEligibleLayer(epochNumber types.EpochID, layersPerEpoch uint32, vrfSig []byte) types.LayerID

CalcEligibleLayer calculates the eligible layer from the VRF signature.

func ComputeWeightPerEligibility

func ComputeWeightPerEligibility(
	cdb *datastore.CachedDB,
	ballot *types.Ballot,
	layerSize,
	layersPerEpoch uint32,
) (*big.Rat, error)

ComputeWeightPerEligibility computes the ballot weight per eligibility w.r.t the active set recorded in its reference ballot.

func GetNumEligibleSlots

func GetNumEligibleSlots(weight, totalWeight uint64, committeeSize uint32, layersPerEpoch uint32) (uint32, error)

GetNumEligibleSlots calculates the number of eligible slots for a smesher in an epoch.