power

package
v3.0.0 Latest Latest
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 Go to latest Published: Jan 19, 2021 License: Apache-2.0, MIT Imports: 21 Imported by: 8

Documentation

Index

Constants

View Source 
const ConsensusMinerMinMiners = 4 // PARAM_SPEC

The number of miners that must meet the consensus minimum miner power before that minimum power is enforced as a condition of leader election. This ensures a network still functions before any miners reach that threshold.

View Source 
const CronQueueAmtBitwidth = 6

Bitwidth of CronEventQueue AMT determined empirically from mutation patterns and projections of mainnet data.

View Source 
const CronQueueHamtBitwidth = 6

Bitwidth of CronEventQueue HAMT determined empirically from mutation patterns and projections of mainnet data.

View Source 
const (
	ErrTooManyProveCommits = exitcode.FirstActorSpecificExitCode + iota
)
View Source 
const GasOnSubmitVerifySeal = 34721049

GasOnSubmitVerifySeal is amount of gas charged for SubmitPoRepForBulkVerify This number is empirically determined

View Source 
const MaxMinerProveCommitsPerEpoch = 200 // PARAM_SPEC

Maximum number of prove-commits each miner can submit in one epoch.

This limits the number of proof partitions we may need to load in the cron call path. Onboarding 1EiB/year requires at least 32 prove-commits per epoch.

View Source 
const ProofValidationBatchAmtBitwidth = 4

Bitwidth of ProofValidationBatch AMT determined empirically from mutation pattersn and projections of mainnet data.

Variables

View Source 
var InitialQAPowerEstimatePosition = big.Mul(big.NewInt(750_000), big.NewInt(1<<30))

genesis power in bytes = 750,000 GiB

View Source 
var InitialQAPowerEstimateVelocity = big.Mul(big.NewInt(3_840), big.NewInt(1<<30))

max chain throughput in bytes per epoch = 120 ProveCommits / epoch = 3,840 GiB

Functions

func CurrentTotalPower 

func CurrentTotalPower(st *State) (abi.StoragePower, abi.StoragePower)

CurrentTotalPower returns current power values accounting for minimum miner and minimum power

Types

type Actor 

type Actor struct{}

func (Actor) Code 

func (a Actor) Code() cid.Cid

func (Actor) Constructor 

func (a Actor) Constructor(rt Runtime, _ *abi.EmptyValue) *abi.EmptyValue

func (Actor) CreateMiner 

func (a Actor) CreateMiner(rt Runtime, params *CreateMinerParams) *CreateMinerReturn

func (Actor) CurrentTotalPower 

func (a Actor) CurrentTotalPower(rt Runtime, _ *abi.EmptyValue) *CurrentTotalPowerReturn

Returns the total power and pledge recorded by the power actor. The returned values are frozen during the cron tick before this epoch so that this method returns consistent values while processing all messages of an epoch.

func (Actor) EnrollCronEvent 

func (a Actor) EnrollCronEvent(rt Runtime, params *EnrollCronEventParams) *abi.EmptyValue

func (Actor) Exports 

func (a Actor) Exports() []interface{}

func (Actor) IsSingleton 

func (a Actor) IsSingleton() bool

func (Actor) OnEpochTickEnd 

func (a Actor) OnEpochTickEnd(rt Runtime, _ *abi.EmptyValue) *abi.EmptyValue

Called by Cron.

func (Actor) State 

func (a Actor) State() cbor.Er

func (Actor) SubmitPoRepForBulkVerify 

func (a Actor) SubmitPoRepForBulkVerify(rt Runtime, sealInfo *proof.SealVerifyInfo) *abi.EmptyValue

func (Actor) UpdateClaimedPower 

func (a Actor) UpdateClaimedPower(rt Runtime, params *UpdateClaimedPowerParams) *abi.EmptyValue

Adds or removes claimed power for the calling actor. May only be invoked by a miner actor.

func (Actor) UpdatePledgeTotal 

func (a Actor) UpdatePledgeTotal(rt Runtime, pledgeDelta *abi.TokenAmount) *abi.EmptyValue

type Claim 

type Claim struct {
	// Miner's proof type used to determine minimum miner size
	WindowPoStProofType abi.RegisteredPoStProof

	// Sum of raw byte power for a miner's sectors.
	RawBytePower abi.StoragePower

	// Sum of quality adjusted power for a miner's sectors.
	QualityAdjPower abi.StoragePower
}

func (*Claim) MarshalCBOR 

func (t *Claim) MarshalCBOR(w io.Writer) error

func (*Claim) UnmarshalCBOR 

func (t *Claim) UnmarshalCBOR(r io.Reader) error

type ClaimsByAddress 

type ClaimsByAddress map[address.Address]Claim

func CheckClaimInvariants 

func CheckClaimInvariants(st *State, store adt.Store, acc *builtin.MessageAccumulator) ClaimsByAddress

type CreateMinerParams 

type CreateMinerParams struct {
	Owner               addr.Address
	Worker              addr.Address
	WindowPoStProofType abi.RegisteredPoStProof
	Peer                abi.PeerID
	Multiaddrs          []abi.Multiaddrs
}

Changed since v2: - Seal proof type replaced with PoSt proof types

func (*CreateMinerParams) MarshalCBOR 

func (t *CreateMinerParams) MarshalCBOR(w io.Writer) error

func (*CreateMinerParams) UnmarshalCBOR 

func (t *CreateMinerParams) UnmarshalCBOR(r io.Reader) error

type CreateMinerReturn 

type CreateMinerReturn = power0.CreateMinerReturn
type CreateMinerReturn struct {
	IDAddress     addr.Address // The canonical ID-based address for the actor.
	RobustAddress addr.Address // A more expensive but re-org-safe address for the newly created actor.
}

type CronEvent 

type CronEvent struct {
	MinerAddr       addr.Address
	CallbackPayload []byte
}

func (*CronEvent) MarshalCBOR 

func (t *CronEvent) MarshalCBOR(w io.Writer) error

func (*CronEvent) UnmarshalCBOR 

func (t *CronEvent) UnmarshalCBOR(r io.Reader) error

type CronEventsByAddress 

type CronEventsByAddress map[address.Address][]MinerCronEvent

func CheckCronInvariants 

func CheckCronInvariants(st *State, store adt.Store, acc *builtin.MessageAccumulator) CronEventsByAddress

type CurrentTotalPowerReturn 

type CurrentTotalPowerReturn struct {
	RawBytePower            abi.StoragePower
	QualityAdjPower         abi.StoragePower
	PledgeCollateral        abi.TokenAmount
	QualityAdjPowerSmoothed smoothing.FilterEstimate
}

Changed since v0: - QualityAdjPowerSmoothed is not a pointer

func (*CurrentTotalPowerReturn) MarshalCBOR 

func (t *CurrentTotalPowerReturn) MarshalCBOR(w io.Writer) error

func (*CurrentTotalPowerReturn) UnmarshalCBOR 

func (t *CurrentTotalPowerReturn) UnmarshalCBOR(r io.Reader) error

type EnrollCronEventParams 

type EnrollCronEventParams = power0.EnrollCronEventParams
type EnrollCronEventParams struct {
	EventEpoch abi.ChainEpoch
	Payload    []byte
}

type MinerConstructorParams 

type MinerConstructorParams struct {
	OwnerAddr           addr.Address
	WorkerAddr          addr.Address
	ControlAddrs        []addr.Address
	WindowPoStProofType abi.RegisteredPoStProof
	PeerId              abi.PeerID
	Multiaddrs          []abi.Multiaddrs
}

Storage miner actor constructor params are defined here so the power actor can send them to the init actor to instantiate miners. Changed since v2: - Seal proof type replaced with PoSt proof type

func (*MinerConstructorParams) MarshalCBOR 

func (t *MinerConstructorParams) MarshalCBOR(w io.Writer) error

func (*MinerConstructorParams) UnmarshalCBOR 

func (t *MinerConstructorParams) UnmarshalCBOR(r io.Reader) error

type MinerCronEvent 

type MinerCronEvent struct {
	Epoch   abi.ChainEpoch
	Payload []byte
}

type ProofsByAddress 

type ProofsByAddress map[address.Address][]proof.SealVerifyInfo

func CheckProofValidationInvariants 

func CheckProofValidationInvariants(st *State, store adt.Store, claims ClaimsByAddress, acc *builtin.MessageAccumulator) ProofsByAddress

type Runtime 

type Runtime = runtime.Runtime

type SectorTermination 

type SectorTermination int64

type State 

type State struct {
	TotalRawBytePower abi.StoragePower
	// TotalBytesCommitted includes claims from miners below min power threshold
	TotalBytesCommitted  abi.StoragePower
	TotalQualityAdjPower abi.StoragePower
	// TotalQABytesCommitted includes claims from miners below min power threshold
	TotalQABytesCommitted abi.StoragePower
	TotalPledgeCollateral abi.TokenAmount

	// These fields are set once per epoch in the previous cron tick and used
	// for consistent values across a single epoch's state transition.
	ThisEpochRawBytePower     abi.StoragePower
	ThisEpochQualityAdjPower  abi.StoragePower
	ThisEpochPledgeCollateral abi.TokenAmount
	ThisEpochQAPowerSmoothed  smoothing.FilterEstimate

	MinerCount int64
	// Number of miners having proven the minimum consensus power.
	MinerAboveMinPowerCount int64

	// A queue of events to be triggered by cron, indexed by epoch.
	CronEventQueue cid.Cid // Multimap, (HAMT[ChainEpoch]AMT[CronEvent])

	// First epoch in which a cron task may be stored.
	// Cron will iterate every epoch between this and the current epoch inclusively to find tasks to execute.
	FirstCronEpoch abi.ChainEpoch

	// Claimed power for each miner.
	Claims cid.Cid // Map, HAMT[address]Claim

	ProofValidationBatch *cid.Cid // Multimap, (HAMT[Address]AMT[SealVerifyInfo])
}

func ConstructState 

func ConstructState(store adt.Store) (*State, error)

func (*State) AddToClaim 

func (st *State) AddToClaim(s adt.Store, miner addr.Address, power abi.StoragePower, qapower abi.StoragePower) error

Parameters may be negative to subtract.

func (*State) GetClaim 

func (st *State) GetClaim(s adt.Store, a addr.Address) (*Claim, bool, error)

func (*State) MarshalCBOR 

func (t *State) MarshalCBOR(w io.Writer) error

func (*State) MinerNominalPowerMeetsConsensusMinimum 

func (st *State) MinerNominalPowerMeetsConsensusMinimum(s adt.Store, miner addr.Address) (bool, error)

MinerNominalPowerMeetsConsensusMinimum is used to validate Election PoSt winners outside the chain state. If the miner has over a threshold of power the miner meets the minimum. If the network is a below a threshold of miners and has power > zero the miner meets the minimum.

func (*State) UnmarshalCBOR 

func (t *State) UnmarshalCBOR(r io.Reader) error

type StateSummary 

type StateSummary struct {
	Crons  CronEventsByAddress
	Claims ClaimsByAddress
	Proofs ProofsByAddress
}

func CheckStateInvariants 

func CheckStateInvariants(st *State, store adt.Store) (*StateSummary, *builtin.MessageAccumulator)

Checks internal invariants of power state.

type UpdateClaimedPowerParams 

type UpdateClaimedPowerParams = power0.UpdateClaimedPowerParams
type UpdateClaimedPowerParams struct {
	RawByteDelta         abi.StoragePower
	QualityAdjustedDelta abi.StoragePower
}

Source Files

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