api

package
v0.7.1 Latest Latest
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 Go to latest Published: Sep 18, 2020 License: Apache-2.0, MIT Imports: 42 Imported by: 371

Documentation

Index

Constants

View Source 
const (
	StageIdle = SyncStateStage(iota)
	StageHeaders
	StagePersistHeaders
	StageMessages
	StageSyncComplete
	StageSyncErrored
	StageFetchingMessages
)

Variables

View Source 
var DefaultMessageSendSpec = MessageSendSpec{

	MaxFee: abi.NewTokenAmount(int64(build.FilecoinPrecision) / 10),
}

Functions

func SignWith 

func SignWith(ctx context.Context, signer Signer, addr address.Address, signable ...Signable) error

Types

type ActiveSync 

type ActiveSync struct {
	Base   *types.TipSet
	Target *types.TipSet

	Stage  SyncStateStage
	Height abi.ChainEpoch

	Start   time.Time
	End     time.Time
	Message string
}

type ActorState 

type ActorState struct {
	Balance types.BigInt
	State   interface{}
}

type BlockMessages 

type BlockMessages struct {
	BlsMessages   []*types.Message
	SecpkMessages []*types.SignedMessage

	Cids []cid.Cid
}

type BlockTemplate added in v0.3.0 

type BlockTemplate struct {
	Miner            address.Address
	Parents          types.TipSetKey
	Ticket           *types.Ticket
	Eproof           *types.ElectionProof
	BeaconValues     []types.BeaconEntry
	Messages         []*types.SignedMessage
	Epoch            abi.ChainEpoch
	Timestamp        uint64
	WinningPoStProof []proof.PoStProof
}

type ChainSectorInfo 

type ChainSectorInfo struct {
	Info miner.SectorOnChainInfo
	ID   abi.SectorNumber
}

type ChannelAvailableFunds added in v0.6.0 

type ChannelAvailableFunds struct {
	// Channel is the address of the channel
	Channel *address.Address
	// From is the from address of the channel (channel creator)
	From address.Address
	// To is the to address of the channel
	To address.Address
	// ConfirmedAmt is the amount of funds that have been confirmed on-chain
	// for the channel
	ConfirmedAmt types.BigInt
	// PendingAmt is the amount of funds that are pending confirmation on-chain
	PendingAmt types.BigInt
	// PendingWaitSentinel can be used with PaychGetWaitReady to wait for
	// confirmation of pending funds
	PendingWaitSentinel *cid.Cid
	// QueuedAmt is the amount that is queued up behind a pending request
	QueuedAmt types.BigInt
	// VoucherRedeemedAmt is the amount that is redeemed by vouchers on-chain
	// and in the local datastore
	VoucherReedeemedAmt types.BigInt
}

type ChannelInfo 

type ChannelInfo struct {
	Channel      address.Address
	WaitSentinel cid.Cid
}

type CirculatingSupply added in v0.5.0 

type CirculatingSupply struct {
	FilVested      abi.TokenAmount
	FilMined       abi.TokenAmount
	FilBurnt       abi.TokenAmount
	FilLocked      abi.TokenAmount
	FilCirculating abi.TokenAmount
}

type CommPRet added in v0.3.0 

type CommPRet struct {
	Root cid.Cid
	Size abi.UnpaddedPieceSize
}

type Common 

type Common interface {
	AuthVerify(ctx context.Context, token string) ([]auth.Permission, error)
	AuthNew(ctx context.Context, perms []auth.Permission) ([]byte, error)

	NetConnectedness(context.Context, peer.ID) (network.Connectedness, error)
	NetPeers(context.Context) ([]peer.AddrInfo, error)
	NetConnect(context.Context, peer.AddrInfo) error
	NetAddrsListen(context.Context) (peer.AddrInfo, error)
	NetDisconnect(context.Context, peer.ID) error
	NetFindPeer(context.Context, peer.ID) (peer.AddrInfo, error)
	NetPubsubScores(context.Context) ([]PubsubScore, error)
	NetAutoNatStatus(context.Context) (NatInfo, error)
	NetAgentVersion(ctx context.Context, p peer.ID) (string, error)

	// NetBandwidthStats returns statistics about the nodes total bandwidth
	// usage and current rate across all peers and protocols.
	NetBandwidthStats(ctx context.Context) (metrics.Stats, error)

	// NetBandwidthStatsByPeer returns statistics about the nodes bandwidth
	// usage and current rate per peer
	NetBandwidthStatsByPeer(ctx context.Context) (map[string]metrics.Stats, error)

	// NetBandwidthStatsByProtocol returns statistics about the nodes bandwidth
	// usage and current rate per protocol
	NetBandwidthStatsByProtocol(ctx context.Context) (map[protocol.ID]metrics.Stats, error)

	// ID returns peerID of libp2p node backing this API
	ID(context.Context) (peer.ID, error)

	// Version provides information about API provider
	Version(context.Context) (Version, error)

	LogList(context.Context) ([]string, error)
	LogSetLevel(context.Context, string, string) error

	// trigger graceful shutdown
	Shutdown(context.Context) error

	Closing(context.Context) (<-chan struct{}, error)
}

type ComputeStateOutput added in v0.3.0 

type ComputeStateOutput struct {
	Root  cid.Cid
	Trace []*InvocResult
}

type DataSize added in v0.5.0 

type DataSize struct {
	PayloadSize int64
	PieceSize   abi.PaddedPieceSize
}

type DataTransferChannel added in v0.5.0 

type DataTransferChannel struct {
	TransferID  datatransfer.TransferID
	Status      datatransfer.Status
	BaseCID     cid.Cid
	IsInitiator bool
	IsSender    bool
	Voucher     string
	Message     string
	OtherPeer   peer.ID
	Transferred uint64
}

func NewDataTransferChannel added in v0.5.0 

func NewDataTransferChannel(hostID peer.ID, channelState datatransfer.ChannelState) DataTransferChannel

NewDataTransferChannel constructs an API DataTransferChannel type from full channel state snapshot and a host id

type DealCollateralBounds added in v0.5.0 

type DealCollateralBounds struct {
	Min abi.TokenAmount
	Max abi.TokenAmount
}

type DealInfo 

type DealInfo struct {
	ProposalCid cid.Cid
	State       storagemarket.StorageDealStatus
	Message     string // more information about deal state, particularly errors
	Provider    address.Address

	DataRef  *storagemarket.DataRef
	PieceCID cid.Cid
	Size     uint64

	PricePerEpoch types.BigInt
	Duration      uint64

	DealID abi.DealID

	CreationTime time.Time
}

type Fault added in v0.3.1 

type Fault struct {
	Miner address.Address
	Epoch abi.ChainEpoch
}

type FileRef added in v0.3.0 

type FileRef struct {
	Path  string
	IsCAR bool
}

type FullNode 

type FullNode interface {
	Common

	// ChainNotify returns channel with chain head updates.
	// First message is guaranteed to be of len == 1, and type == 'current'.
	ChainNotify(context.Context) (<-chan []*HeadChange, error)

	// ChainHead returns the current head of the chain.
	ChainHead(context.Context) (*types.TipSet, error)

	// ChainGetRandomnessFromTickets is used to sample the chain for randomness.
	ChainGetRandomnessFromTickets(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)

	// ChainGetRandomnessFromBeacon is used to sample the beacon for randomness.
	ChainGetRandomnessFromBeacon(ctx context.Context, tsk types.TipSetKey, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte) (abi.Randomness, error)

	// ChainGetBlock returns the block specified by the given CID.
	ChainGetBlock(context.Context, cid.Cid) (*types.BlockHeader, error)
	// ChainGetTipSet returns the tipset specified by the given TipSetKey.
	ChainGetTipSet(context.Context, types.TipSetKey) (*types.TipSet, error)

	// ChainGetBlockMessages returns messages stored in the specified block.
	ChainGetBlockMessages(ctx context.Context, blockCid cid.Cid) (*BlockMessages, error)

	// ChainGetParentReceipts returns receipts for messages in parent tipset of
	// the specified block.
	ChainGetParentReceipts(ctx context.Context, blockCid cid.Cid) ([]*types.MessageReceipt, error)

	// ChainGetParentMessages returns messages stored in parent tipset of the
	// specified block.
	ChainGetParentMessages(ctx context.Context, blockCid cid.Cid) ([]Message, error)

	// ChainGetTipSetByHeight looks back for a tipset at the specified epoch.
	// If there are no blocks at the specified epoch, a tipset at an earlier epoch
	// will be returned.
	ChainGetTipSetByHeight(context.Context, abi.ChainEpoch, types.TipSetKey) (*types.TipSet, error)

	// ChainReadObj reads ipld nodes referenced by the specified CID from chain
	// blockstore and returns raw bytes.
	ChainReadObj(context.Context, cid.Cid) ([]byte, error)

	// ChainHasObj checks if a given CID exists in the chain blockstore.
	ChainHasObj(context.Context, cid.Cid) (bool, error)

	// ChainStatObj returns statistics about the graph referenced by 'obj'.
	// If 'base' is also specified, then the returned stat will be a diff
	// between the two objects.
	ChainStatObj(ctx context.Context, obj cid.Cid, base cid.Cid) (ObjStat, error)

	// ChainSetHead forcefully sets current chain head. Use with caution.
	ChainSetHead(context.Context, types.TipSetKey) error

	// ChainGetGenesis returns the genesis tipset.
	ChainGetGenesis(context.Context) (*types.TipSet, error)

	// ChainTipSetWeight computes weight for the specified tipset.
	ChainTipSetWeight(context.Context, types.TipSetKey) (types.BigInt, error)
	ChainGetNode(ctx context.Context, p string) (*IpldObject, error)

	// ChainGetMessage reads a message referenced by the specified CID from the
	// chain blockstore.
	ChainGetMessage(context.Context, cid.Cid) (*types.Message, error)

	// ChainGetPath returns a set of revert/apply operations needed to get from
	// one tipset to another, for example:
	//“`
	//        to
	//         ^
	// from   tAA
	//   ^     ^
	// tBA    tAB
	//  ^---*--^
	//      ^
	//     tRR
	//“`
	// Would return `[revert(tBA), apply(tAB), apply(tAA)]`
	ChainGetPath(ctx context.Context, from types.TipSetKey, to types.TipSetKey) ([]*HeadChange, error)

	// ChainExport returns a stream of bytes with CAR dump of chain data.
	// The exported chain data includes the header chain from the given tipset
	// back to genesis, the entire genesis state, and the most recent 'nroots'
	// state trees.
	// If oldmsgskip is set, messages from before the requested roots are also not included.
	ChainExport(ctx context.Context, nroots abi.ChainEpoch, oldmsgskip bool, tsk types.TipSetKey) (<-chan []byte, error)

	// BeaconGetEntry returns the beacon entry for the given filecoin epoch. If
	// the entry has not yet been produced, the call will block until the entry
	// becomes available
	BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error)

	// GasEstimateFeeCap estimates gas fee cap
	GasEstimateFeeCap(context.Context, *types.Message, int64, types.TipSetKey) (types.BigInt, error)

	// GasEstimateGasLimit estimates gas used by the message and returns it.
	// It fails if message fails to execute.
	GasEstimateGasLimit(context.Context, *types.Message, types.TipSetKey) (int64, error)

	GasEstimateGasPremium(_ context.Context, nblocksincl uint64,
		sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)

	// GasEstimateMessageGas estimates gas values for unset message gas fields
	GasEstimateMessageGas(context.Context, *types.Message, *MessageSendSpec, types.TipSetKey) (*types.Message, error)

	// SyncState returns the current status of the lotus sync system.
	SyncState(context.Context) (*SyncState, error)

	// SyncSubmitBlock can be used to submit a newly created block to the.
	// network through this node
	SyncSubmitBlock(ctx context.Context, blk *types.BlockMsg) error

	// SyncIncomingBlocks returns a channel streaming incoming, potentially not
	// yet synced block headers.
	SyncIncomingBlocks(ctx context.Context) (<-chan *types.BlockHeader, error)

	// SyncCheckpoint marks a blocks as checkpointed, meaning that it won't ever fork away from it.
	SyncCheckpoint(ctx context.Context, tsk types.TipSetKey) error

	// SyncMarkBad marks a blocks as bad, meaning that it won't ever by synced.
	// Use with extreme caution.
	SyncMarkBad(ctx context.Context, bcid cid.Cid) error

	// SyncUnmarkBad unmarks a blocks as bad, making it possible to be validated and synced again.
	SyncUnmarkBad(ctx context.Context, bcid cid.Cid) error

	// SyncCheckBad checks if a block was marked as bad, and if it was, returns
	// the reason.
	SyncCheckBad(ctx context.Context, bcid cid.Cid) (string, error)

	// MpoolPending returns pending mempool messages.
	MpoolPending(context.Context, types.TipSetKey) ([]*types.SignedMessage, error)

	// MpoolSelect returns a list of pending messages for inclusion in the next block
	MpoolSelect(context.Context, types.TipSetKey, float64) ([]*types.SignedMessage, error)

	// MpoolPush pushes a signed message to mempool.
	MpoolPush(context.Context, *types.SignedMessage) (cid.Cid, error)

	// MpoolPushMessage atomically assigns a nonce, signs, and pushes a message
	// to mempool.
	// maxFee is only used when GasFeeCap/GasPremium fields aren't specified
	//
	// When maxFee is set to 0, MpoolPushMessage will guess appropriate fee
	// based on current chain conditions
	MpoolPushMessage(ctx context.Context, msg *types.Message, spec *MessageSendSpec) (*types.SignedMessage, error)

	// MpoolGetNonce gets next nonce for the specified sender.
	// Note that this method may not be atomic. Use MpoolPushMessage instead.
	MpoolGetNonce(context.Context, address.Address) (uint64, error)
	MpoolSub(context.Context) (<-chan MpoolUpdate, error)

	// MpoolClear clears pending messages from the mpool
	MpoolClear(context.Context, bool) error

	// MpoolGetConfig returns (a copy of) the current mpool config
	MpoolGetConfig(context.Context) (*types.MpoolConfig, error)
	// MpoolSetConfig sets the mpool config to (a copy of) the supplied config
	MpoolSetConfig(context.Context, *types.MpoolConfig) error

	MinerGetBaseInfo(context.Context, address.Address, abi.ChainEpoch, types.TipSetKey) (*MiningBaseInfo, error)
	MinerCreateBlock(context.Context, *BlockTemplate) (*types.BlockMsg, error)

	// WalletNew creates a new address in the wallet with the given sigType.
	WalletNew(context.Context, crypto.SigType) (address.Address, error)
	// WalletHas indicates whether the given address is in the wallet.
	WalletHas(context.Context, address.Address) (bool, error)
	// WalletList lists all the addresses in the wallet.
	WalletList(context.Context) ([]address.Address, error)
	// WalletBalance returns the balance of the given address at the current head of the chain.
	WalletBalance(context.Context, address.Address) (types.BigInt, error)
	// WalletSign signs the given bytes using the given address.
	WalletSign(context.Context, address.Address, []byte) (*crypto.Signature, error)
	// WalletSignMessage signs the given message using the given address.
	WalletSignMessage(context.Context, address.Address, *types.Message) (*types.SignedMessage, error)
	// WalletVerify takes an address, a signature, and some bytes, and indicates whether the signature is valid.
	// The address does not have to be in the wallet.
	WalletVerify(context.Context, address.Address, []byte, *crypto.Signature) bool
	// WalletDefaultAddress returns the address marked as default in the wallet.
	WalletDefaultAddress(context.Context) (address.Address, error)
	// WalletSetDefault marks the given address as as the default one.
	WalletSetDefault(context.Context, address.Address) error
	// WalletExport returns the private key of an address in the wallet.
	WalletExport(context.Context, address.Address) (*types.KeyInfo, error)
	// WalletImport receives a KeyInfo, which includes a private key, and imports it into the wallet.
	WalletImport(context.Context, *types.KeyInfo) (address.Address, error)
	// WalletDelete deletes an address from the wallet.
	WalletDelete(context.Context, address.Address) error

	// ClientImport imports file under the specified path into filestore.
	ClientImport(ctx context.Context, ref FileRef) (*ImportRes, error)
	// ClientRemoveImport removes file import
	ClientRemoveImport(ctx context.Context, importID multistore.StoreID) error
	// ClientStartDeal proposes a deal with a miner.
	ClientStartDeal(ctx context.Context, params *StartDealParams) (*cid.Cid, error)
	// ClientGetDealInfo returns the latest information about a given deal.
	ClientGetDealInfo(context.Context, cid.Cid) (*DealInfo, error)
	// ClientListDeals returns information about the deals made by the local client.
	ClientListDeals(ctx context.Context) ([]DealInfo, error)
	// ClientGetDealUpdates returns the status of updated deals
	ClientGetDealUpdates(ctx context.Context) (<-chan DealInfo, error)
	// ClientHasLocal indicates whether a certain CID is locally stored.
	ClientHasLocal(ctx context.Context, root cid.Cid) (bool, error)
	// ClientFindData identifies peers that have a certain file, and returns QueryOffers (one per peer).
	ClientFindData(ctx context.Context, root cid.Cid, piece *cid.Cid) ([]QueryOffer, error)
	// ClientMinerQueryOffer returns a QueryOffer for the specific miner and file.
	ClientMinerQueryOffer(ctx context.Context, miner address.Address, root cid.Cid, piece *cid.Cid) (QueryOffer, error)
	// ClientRetrieve initiates the retrieval of a file, as specified in the order.
	ClientRetrieve(ctx context.Context, order RetrievalOrder, ref *FileRef) error
	// ClientRetrieveWithEvents initiates the retrieval of a file, as specified in the order, and provides a channel
	// of status updates.
	ClientRetrieveWithEvents(ctx context.Context, order RetrievalOrder, ref *FileRef) (<-chan marketevents.RetrievalEvent, error)
	// ClientQueryAsk returns a signed StorageAsk from the specified miner.
	ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.SignedStorageAsk, error)
	// ClientCalcCommP calculates the CommP for a specified file
	ClientCalcCommP(ctx context.Context, inpath string) (*CommPRet, error)
	// ClientGenCar generates a CAR file for the specified file.
	ClientGenCar(ctx context.Context, ref FileRef, outpath string) error
	// ClientDealSize calculates real deal data size
	ClientDealSize(ctx context.Context, root cid.Cid) (DataSize, error)
	// ClientListTransfers returns the status of all ongoing transfers of data
	ClientListDataTransfers(ctx context.Context) ([]DataTransferChannel, error)
	ClientDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error)
	// ClientRetrieveTryRestartInsufficientFunds attempts to restart stalled retrievals on a given payment channel
	// which are stuck due to insufficient funds
	ClientRetrieveTryRestartInsufficientFunds(ctx context.Context, paymentChannel address.Address) error

	// ClientListImports lists imported files and their root CIDs
	ClientListImports(ctx context.Context) ([]Import, error)

	// StateCall runs the given message and returns its result without any persisted changes.
	StateCall(context.Context, *types.Message, types.TipSetKey) (*InvocResult, error)
	// StateReplay returns the result of executing the indicated message, assuming it was executed in the indicated tipset.
	StateReplay(context.Context, types.TipSetKey, cid.Cid) (*InvocResult, error)
	// StateGetActor returns the indicated actor's nonce and balance.
	StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error)
	// StateReadState returns the indicated actor's state.
	StateReadState(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*ActorState, error)
	// StateListMessages looks back and returns all messages with a matching to or from address, stopping at the given height.
	StateListMessages(ctx context.Context, match *types.Message, tsk types.TipSetKey, toht abi.ChainEpoch) ([]cid.Cid, error)

	// StateNetworkName returns the name of the network the node is synced to
	StateNetworkName(context.Context) (dtypes.NetworkName, error)
	// StateMinerSectors returns info about the given miner's sectors. If the filter bitfield is nil, all sectors are included.
	// If the filterOut boolean is set to true, any sectors in the filter are excluded.
	// If false, only those sectors in the filter are included.
	StateMinerSectors(context.Context, address.Address, *bitfield.BitField, bool, types.TipSetKey) ([]*ChainSectorInfo, error)
	// StateMinerActiveSectors returns info about sectors that a given miner is actively proving.
	StateMinerActiveSectors(context.Context, address.Address, types.TipSetKey) ([]*ChainSectorInfo, error)
	// StateMinerProvingDeadline calculates the deadline at some epoch for a proving period
	// and returns the deadline-related calculations.
	StateMinerProvingDeadline(context.Context, address.Address, types.TipSetKey) (*dline.Info, error)
	// StateMinerPower returns the power of the indicated miner
	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error)
	// StateMinerInfo returns info about the indicated miner
	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (MinerInfo, error)
	// StateMinerDeadlines returns all the proving deadlines for the given miner
	StateMinerDeadlines(context.Context, address.Address, types.TipSetKey) ([]*miner.Deadline, error)
	// StateMinerPartitions loads miner partitions for the specified miner/deadline
	StateMinerPartitions(context.Context, address.Address, uint64, types.TipSetKey) ([]*miner.Partition, error)
	// StateMinerFaults returns a bitfield indicating the faulty sectors of the given miner
	StateMinerFaults(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error)
	// StateAllMinerFaults returns all non-expired Faults that occur within lookback epochs of the given tipset
	StateAllMinerFaults(ctx context.Context, lookback abi.ChainEpoch, ts types.TipSetKey) ([]*Fault, error)
	// StateMinerRecoveries returns a bitfield indicating the recovering sectors of the given miner
	StateMinerRecoveries(context.Context, address.Address, types.TipSetKey) (bitfield.BitField, error)
	// StateMinerInitialPledgeCollateral returns the precommit deposit for the specified miner's sector
	StateMinerPreCommitDepositForPower(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error)
	// StateMinerInitialPledgeCollateral returns the initial pledge collateral for the specified miner's sector
	StateMinerInitialPledgeCollateral(context.Context, address.Address, miner.SectorPreCommitInfo, types.TipSetKey) (types.BigInt, error)
	// StateMinerAvailableBalance returns the portion of a miner's balance that can be withdrawn or spent
	StateMinerAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error)
	// StateSectorPreCommitInfo returns the PreCommit info for the specified miner's sector
	StateSectorPreCommitInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (miner.SectorPreCommitOnChainInfo, error)
	// StateSectorGetInfo returns the on-chain info for the specified miner's sector. Returns null in case the sector info isn't found
	// NOTE: returned info.Expiration may not be accurate in some cases, use StateSectorExpiration to get accurate
	// expiration epoch
	StateSectorGetInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorOnChainInfo, error)
	// StateSectorExpiration returns epoch at which given sector will expire
	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*SectorExpiration, error)
	// StateSectorPartition finds deadline/partition with the specified sector
	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*SectorLocation, error)
	// StateSearchMsg searches for a message in the chain, and returns its receipt and the tipset where it was executed
	StateSearchMsg(context.Context, cid.Cid) (*MsgLookup, error)
	// StateMsgGasCost searches for a message in the chain, and returns details of the messages gas costs, including the penalty and miner tip
	StateMsgGasCost(context.Context, cid.Cid, types.TipSetKey) (*MsgGasCost, error)
	// StateWaitMsg looks back in the chain for a message. If not found, it blocks until the
	// message arrives on chain, and gets to the indicated confidence depth.
	StateWaitMsg(ctx context.Context, cid cid.Cid, confidence uint64) (*MsgLookup, error)
	// StateListMiners returns the addresses of every miner that has claimed power in the Power Actor
	StateListMiners(context.Context, types.TipSetKey) ([]address.Address, error)
	// StateListActors returns the addresses of every actor in the state
	StateListActors(context.Context, types.TipSetKey) ([]address.Address, error)
	// StateMarketBalance looks up the Escrow and Locked balances of the given address in the Storage Market
	StateMarketBalance(context.Context, address.Address, types.TipSetKey) (MarketBalance, error)
	// StateMarketParticipants returns the Escrow and Locked balances of every participant in the Storage Market
	StateMarketParticipants(context.Context, types.TipSetKey) (map[string]MarketBalance, error)
	// StateMarketDeals returns information about every deal in the Storage Market
	StateMarketDeals(context.Context, types.TipSetKey) (map[string]MarketDeal, error)
	// StateMarketStorageDeal returns information about the indicated deal
	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*MarketDeal, error)
	// StateLookupID retrieves the ID address of the given address
	StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error)
	// StateAccountKey returns the public key address of the given ID address
	StateAccountKey(context.Context, address.Address, types.TipSetKey) (address.Address, error)
	// StateChangedActors returns all the actors whose states change between the two given state CIDs
	// TODO: Should this take tipset keys instead?
	StateChangedActors(context.Context, cid.Cid, cid.Cid) (map[string]types.Actor, error)
	// StateGetReceipt returns the message receipt for the given message
	StateGetReceipt(context.Context, cid.Cid, types.TipSetKey) (*types.MessageReceipt, error)
	// StateMinerSectorCount returns the number of sectors in a miner's sector set and proving set
	StateMinerSectorCount(context.Context, address.Address, types.TipSetKey) (MinerSectors, error)
	// StateCompute is a flexible command that applies the given messages on the given tipset.
	// The messages are run as though the VM were at the provided height.
	StateCompute(context.Context, abi.ChainEpoch, []*types.Message, types.TipSetKey) (*ComputeStateOutput, error)
	// StateVerifiedClientStatus returns the data cap for the given address.
	// Returns nil if there is no entry in the data cap table for the
	// address.
	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*verifreg.DataCap, error)
	// StateDealProviderCollateralBounds returns the min and max collateral a storage provider
	// can issue. It takes the deal size and verified status as parameters.
	StateDealProviderCollateralBounds(context.Context, abi.PaddedPieceSize, bool, types.TipSetKey) (DealCollateralBounds, error)

	// StateCirculatingSupply returns the circulating supply of Filecoin at the given tipset
	StateCirculatingSupply(context.Context, types.TipSetKey) (CirculatingSupply, error)

	// MsigGetAvailableBalance returns the portion of a multisig's balance that can be withdrawn or spent
	MsigGetAvailableBalance(context.Context, address.Address, types.TipSetKey) (types.BigInt, error)
	// MsigGetVested returns the amount of FIL that vested in a multisig in a certain period.
	// It takes the following params: <multisig address>, <start epoch>, <end epoch>
	MsigGetVested(context.Context, address.Address, types.TipSetKey, types.TipSetKey) (types.BigInt, error)
	// MsigCreate creates a multisig wallet
	// It takes the following params: <required number of senders>, <approving addresses>, <unlock duration>
	//<initial balance>, <sender address of the create msg>, <gas price>
	MsigCreate(context.Context, uint64, []address.Address, abi.ChainEpoch, types.BigInt, address.Address, types.BigInt) (cid.Cid, error)
	// MsigPropose proposes a multisig message
	// It takes the following params: <multisig address>, <recipient address>, <value to transfer>,
	// <sender address of the propose msg>, <method to call in the proposed message>, <params to include in the proposed message>
	MsigPropose(context.Context, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error)
	// MsigApprove approves a previously-proposed multisig message
	// It takes the following params: <multisig address>, <proposed message ID>, <proposer address>, <recipient address>, <value to transfer>,
	// <sender address of the approve msg>, <method to call in the proposed message>, <params to include in the proposed message>
	MsigApprove(context.Context, address.Address, uint64, address.Address, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error)
	// MsigCancel cancels a previously-proposed multisig message
	// It takes the following params: <multisig address>, <proposed message ID>, <recipient address>, <value to transfer>,
	// <sender address of the cancel msg>, <method to call in the proposed message>, <params to include in the proposed message>
	MsigCancel(context.Context, address.Address, uint64, address.Address, types.BigInt, address.Address, uint64, []byte) (cid.Cid, error)
	// MsigAddPropose proposes adding a signer in the multisig
	// It takes the following params: <multisig address>, <sender address of the propose msg>,
	// <new signer>, <whether the number of required signers should be increased>
	MsigAddPropose(context.Context, address.Address, address.Address, address.Address, bool) (cid.Cid, error)
	// MsigAddApprove approves a previously proposed AddSigner message
	// It takes the following params: <multisig address>, <sender address of the approve msg>, <proposed message ID>,
	// <proposer address>, <new signer>, <whether the number of required signers should be increased>
	MsigAddApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, bool) (cid.Cid, error)
	// MsigAddCancel cancels a previously proposed AddSigner message
	// It takes the following params: <multisig address>, <sender address of the cancel msg>, <proposed message ID>,
	// <new signer>, <whether the number of required signers should be increased>
	MsigAddCancel(context.Context, address.Address, address.Address, uint64, address.Address, bool) (cid.Cid, error)
	// MsigSwapPropose proposes swapping 2 signers in the multisig
	// It takes the following params: <multisig address>, <sender address of the propose msg>,
	// <old signer>, <new signer>
	MsigSwapPropose(context.Context, address.Address, address.Address, address.Address, address.Address) (cid.Cid, error)
	// MsigSwapApprove approves a previously proposed SwapSigner
	// It takes the following params: <multisig address>, <sender address of the approve msg>, <proposed message ID>,
	// <proposer address>, <old signer>, <new signer>
	MsigSwapApprove(context.Context, address.Address, address.Address, uint64, address.Address, address.Address, address.Address) (cid.Cid, error)
	// MsigSwapCancel cancels a previously proposed SwapSigner message
	// It takes the following params: <multisig address>, <sender address of the cancel msg>, <proposed message ID>,
	// <old signer>, <new signer>
	MsigSwapCancel(context.Context, address.Address, address.Address, uint64, address.Address, address.Address) (cid.Cid, error)

	MarketEnsureAvailable(context.Context, address.Address, address.Address, types.BigInt) (cid.Cid, error)

	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*ChannelInfo, error)
	PaychGetWaitReady(context.Context, cid.Cid) (address.Address, error)
	PaychAvailableFunds(ctx context.Context, ch address.Address) (*ChannelAvailableFunds, error)
	PaychAvailableFundsByFromTo(ctx context.Context, from, to address.Address) (*ChannelAvailableFunds, error)
	PaychList(context.Context) ([]address.Address, error)
	PaychStatus(context.Context, address.Address) (*PaychStatus, error)
	PaychSettle(context.Context, address.Address) (cid.Cid, error)
	PaychCollect(context.Context, address.Address) (cid.Cid, error)
	PaychAllocateLane(ctx context.Context, ch address.Address) (uint64, error)
	PaychNewPayment(ctx context.Context, from, to address.Address, vouchers []VoucherSpec) (*PaymentInfo, error)
	PaychVoucherCheckValid(context.Context, address.Address, *paych.SignedVoucher) error
	PaychVoucherCheckSpendable(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (bool, error)
	PaychVoucherCreate(context.Context, address.Address, types.BigInt, uint64) (*VoucherCreateResult, error)
	PaychVoucherAdd(context.Context, address.Address, *paych.SignedVoucher, []byte, types.BigInt) (types.BigInt, error)
	PaychVoucherList(context.Context, address.Address) ([]*paych.SignedVoucher, error)
	PaychVoucherSubmit(context.Context, address.Address, *paych.SignedVoucher, []byte, []byte) (cid.Cid, error)
}

FullNode API is a low-level interface to the Filecoin network full node

type HeadChange added in v0.3.0 

type HeadChange struct {
	Type string
	Val  *types.TipSet
}

type Import 

type Import struct {
	Key multistore.StoreID
	Err string

	Root     *cid.Cid
	Source   string
	FilePath string
}

type ImportRes added in v0.5.0 

type ImportRes struct {
	Root     cid.Cid
	ImportID multistore.StoreID
}

type InvocResult added in v0.3.0 

type InvocResult struct {
	Msg            *types.Message
	MsgRct         *types.MessageReceipt
	ExecutionTrace types.ExecutionTrace
	Error          string
	Duration       time.Duration
}

type IpldObject added in v0.3.0 

type IpldObject struct {
	Cid cid.Cid
	Obj interface{}
}

type MarketBalance added in v0.3.0 

type MarketBalance struct {
	Escrow big.Int
	Locked big.Int
}

type MarketDeal added in v0.3.0 

type MarketDeal struct {
	Proposal market.DealProposal
	State    market.DealState
}

type Message 

type Message struct {
	Cid     cid.Cid
	Message *types.Message
}

type MessageSendSpec added in v0.5.0 

type MessageSendSpec struct {
	MaxFee abi.TokenAmount
}

func (*MessageSendSpec) Get added in v0.5.0 

func (ms *MessageSendSpec) Get() MessageSendSpec

type MethodCall added in v0.2.6 

type MethodCall struct {
	types.MessageReceipt
	Error string
}

type MinerInfo added in v0.4.0 

type MinerInfo struct {
	Owner                      address.Address   // Must be an ID-address.
	Worker                     address.Address   // Must be an ID-address.
	NewWorker                  address.Address   // Must be an ID-address.
	ControlAddresses           []address.Address // Must be an ID-addresses.
	WorkerChangeEpoch          abi.ChainEpoch
	PeerId                     *peer.ID
	Multiaddrs                 []abi.Multiaddrs
	SealProofType              abi.RegisteredSealProof
	SectorSize                 abi.SectorSize
	WindowPoStPartitionSectors uint64
}

func NewApiMinerInfo added in v0.4.0 

func NewApiMinerInfo(info *miner.MinerInfo) MinerInfo

type MinerPower 

type MinerPower struct {
	MinerPower power.Claim
	TotalPower power.Claim
}

type MinerSectors added in v0.1.5 

type MinerSectors struct {
	Sectors uint64
	Active  uint64
}

type MiningBaseInfo added in v0.3.0 

type MiningBaseInfo struct {
	MinerPower      types.BigInt
	NetworkPower    types.BigInt
	Sectors         []proof.SectorInfo
	WorkerKey       address.Address
	SectorSize      abi.SectorSize
	PrevBeaconEntry types.BeaconEntry
	BeaconEntries   []types.BeaconEntry
	HasMinPower     bool
}

type MpoolChange 

type MpoolChange int
const (
	MpoolAdd MpoolChange = iota
	MpoolRemove
)

type MpoolUpdate 

type MpoolUpdate struct {
	Type    MpoolChange
	Message *types.SignedMessage
}

type MsgGasCost added in v0.7.1 

type MsgGasCost struct {
	Message            cid.Cid // Can be different than requested, in case it was replaced, but only gas values changed
	GasUsed            abi.TokenAmount
	BaseFeeBurn        abi.TokenAmount
	OverEstimationBurn abi.TokenAmount
	MinerPenalty       abi.TokenAmount
	MinerTip           abi.TokenAmount
	Refund             abi.TokenAmount
	TotalCost          abi.TokenAmount
}

type MsgLookup added in v0.3.0 

type MsgLookup struct {
	Message   cid.Cid // Can be different than requested, in case it was replaced, but only gas values changed
	Receipt   types.MessageReceipt
	ReturnDec interface{}
	TipSet    types.TipSetKey
	Height    abi.ChainEpoch
}

type MsigProposeResponse added in v0.3.0 

type MsigProposeResponse int
const (
	MsigApprove MsigProposeResponse = iota
	MsigCancel
)

type MultiaddrSlice 

type MultiaddrSlice []ma.Multiaddr

func (*MultiaddrSlice) UnmarshalJSON 

func (m *MultiaddrSlice) UnmarshalJSON(raw []byte) (err error)

type NatInfo added in v0.5.0 

type NatInfo struct {
	Reachability network.Reachability
	PublicAddr   string
}

type ObjStat added in v0.3.0 

type ObjStat struct {
	Size  uint64
	Links uint64
}

type PCHDir 

type PCHDir int
const (
	PCHUndef PCHDir = iota
	PCHInbound
	PCHOutbound
)

type PaychStatus 

type PaychStatus struct {
	ControlAddr address.Address
	Direction   PCHDir
}

type PaymentInfo 

type PaymentInfo struct {
	Channel      address.Address
	WaitSentinel cid.Cid
	Vouchers     []*paych.SignedVoucher
}

func (*PaymentInfo) MarshalCBOR 

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

func (*PaymentInfo) UnmarshalCBOR 

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

type PubsubScore added in v0.3.1 

type PubsubScore struct {
	ID    peer.ID
	Score *pubsub.PeerScoreSnapshot
}

type QueryOffer 

type QueryOffer struct {
	Err string

	Root  cid.Cid
	Piece *cid.Cid

	Size                    uint64
	MinPrice                types.BigInt
	UnsealPrice             types.BigInt
	PaymentInterval         uint64
	PaymentIntervalIncrease uint64
	Miner                   address.Address
	MinerPeer               retrievalmarket.RetrievalPeer
}

func (*QueryOffer) Order 

func (o *QueryOffer) Order(client address.Address) RetrievalOrder

type RetrievalOrder 

type RetrievalOrder struct {
	// TODO: make this less unixfs specific
	Root  cid.Cid
	Piece *cid.Cid
	Size  uint64
	// TODO: support offset
	Total                   types.BigInt
	UnsealPrice             types.BigInt
	PaymentInterval         uint64
	PaymentIntervalIncrease uint64
	Client                  address.Address
	Miner                   address.Address
	MinerPeer               retrievalmarket.RetrievalPeer
}

type SealRes added in v0.3.0 

type SealRes struct {
	Err   string
	GoErr error `json:"-"`

	Proof []byte
}

type SealSeed added in v0.3.0 

type SealSeed struct {
	Value abi.InteractiveSealRandomness
	Epoch abi.ChainEpoch
}

func (*SealSeed) Equals added in v0.3.0 

func (st *SealSeed) Equals(ost *SealSeed) bool

func (*SealSeed) MarshalCBOR added in v0.3.0 

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

func (*SealSeed) UnmarshalCBOR added in v0.3.0 

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

type SealTicket added in v0.3.0 

type SealTicket struct {
	Value abi.SealRandomness
	Epoch abi.ChainEpoch
}

func (*SealTicket) Equals added in v0.3.0 

func (st *SealTicket) Equals(ost *SealTicket) bool

func (*SealTicket) MarshalCBOR added in v0.3.0 

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

func (*SealTicket) UnmarshalCBOR added in v0.3.0 

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

type SealedRef 

type SealedRef struct {
	SectorID abi.SectorNumber
	Offset   abi.PaddedPieceSize
	Size     abi.UnpaddedPieceSize
}

func (*SealedRef) MarshalCBOR 

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

func (*SealedRef) UnmarshalCBOR 

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

type SealedRefs 

type SealedRefs struct {
	Refs []SealedRef
}

func (*SealedRefs) MarshalCBOR 

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

func (*SealedRefs) UnmarshalCBOR 

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

type SectorExpiration added in v0.5.0 

type SectorExpiration struct {
	OnTime abi.ChainEpoch

	// non-zero if sector is faulty, epoch at which it will be permanently
	// removed if it doesn't recover
	Early abi.ChainEpoch
}

type SectorInfo 

type SectorInfo struct {
	SectorID     abi.SectorNumber
	State        SectorState
	CommD        *cid.Cid
	CommR        *cid.Cid
	Proof        []byte
	Deals        []abi.DealID
	Ticket       SealTicket
	Seed         SealSeed
	PreCommitMsg *cid.Cid
	CommitMsg    *cid.Cid
	Retries      uint64
	ToUpgrade    bool

	LastErr string

	Log []SectorLog

	// On Chain Info
	SealProof          abi.RegisteredSealProof // The seal proof type implies the PoSt proof/s
	Activation         abi.ChainEpoch          // Epoch during which the sector proof was accepted
	Expiration         abi.ChainEpoch          // Epoch during which the sector expires
	DealWeight         abi.DealWeight          // Integral of active deals over sector lifetime
	VerifiedDealWeight abi.DealWeight          // Integral of active verified deals over sector lifetime
	InitialPledge      abi.TokenAmount         // Pledge collected to commit this sector
	// Expiration Info
	OnTime abi.ChainEpoch
	// non-zero if sector is faulty, epoch at which it will be permanently
	// removed if it doesn't recover
	Early abi.ChainEpoch
}

type SectorLocation added in v0.5.0 

type SectorLocation struct {
	Deadline  uint64
	Partition uint64
}

type SectorLog added in v0.2.6 

type SectorLog struct {
	Kind      string
	Timestamp uint64

	Trace string

	Message string
}

type SectorState 

type SectorState string

type SignFunc 

type SignFunc = func(context.Context, []byte) (*crypto.Signature, error)

type Signable 

type Signable interface {
	Sign(context.Context, SignFunc) error
}

type Signer 

type Signer func(context.Context, address.Address, []byte) (*crypto.Signature, error)

type StartDealParams added in v0.3.0 

type StartDealParams struct {
	Data               *storagemarket.DataRef
	Wallet             address.Address
	Miner              address.Address
	EpochPrice         types.BigInt
	MinBlocksDuration  uint64
	ProviderCollateral big.Int
	DealStartEpoch     abi.ChainEpoch
	FastRetrieval      bool
	VerifiedDeal       bool
}

type StorageMiner 

type StorageMiner interface {
	Common

	ActorAddress(context.Context) (address.Address, error)

	ActorSectorSize(context.Context, address.Address) (abi.SectorSize, error)

	MiningBase(context.Context) (*types.TipSet, error)

	// Temp api for testing
	PledgeSector(context.Context) error

	// Get the status of a given sector by ID
	SectorsStatus(ctx context.Context, sid abi.SectorNumber, showOnChainInfo bool) (SectorInfo, error)

	// List all staged sectors
	SectorsList(context.Context) ([]abi.SectorNumber, error)

	SectorsRefs(context.Context) (map[string][]SealedRef, error)

	// SectorStartSealing can be called on sectors in Empty or WaitDeals states
	// to trigger sealing early
	SectorStartSealing(context.Context, abi.SectorNumber) error
	// SectorSetSealDelay sets the time that a newly-created sector
	// waits for more deals before it starts sealing
	SectorSetSealDelay(context.Context, time.Duration) error
	// SectorGetSealDelay gets the time that a newly-created sector
	// waits for more deals before it starts sealing
	SectorGetSealDelay(context.Context) (time.Duration, error)
	// SectorSetExpectedSealDuration sets the expected time for a sector to seal
	SectorSetExpectedSealDuration(context.Context, time.Duration) error
	// SectorGetExpectedSealDuration gets the expected time for a sector to seal
	SectorGetExpectedSealDuration(context.Context) (time.Duration, error)
	SectorsUpdate(context.Context, abi.SectorNumber, SectorState) error
	SectorRemove(context.Context, abi.SectorNumber) error
	SectorMarkForUpgrade(ctx context.Context, id abi.SectorNumber) error

	StorageList(ctx context.Context) (map[stores.ID][]stores.Decl, error)
	StorageLocal(ctx context.Context) (map[stores.ID]string, error)
	StorageStat(ctx context.Context, id stores.ID) (fsutil.FsStat, error)

	// WorkerConnect tells the node to connect to workers RPC
	WorkerConnect(context.Context, string) error
	WorkerStats(context.Context) (map[uint64]storiface.WorkerStats, error)
	WorkerJobs(context.Context) (map[uint64][]storiface.WorkerJob, error)

	// SealingSchedDiag dumps internal sealing scheduler state
	SealingSchedDiag(context.Context) (interface{}, error)

	stores.SectorIndex

	MarketImportDealData(ctx context.Context, propcid cid.Cid, path string) error
	MarketListDeals(ctx context.Context) ([]storagemarket.StorageDeal, error)
	MarketListRetrievalDeals(ctx context.Context) ([]retrievalmarket.ProviderDealState, error)
	MarketGetDealUpdates(ctx context.Context) (<-chan storagemarket.MinerDeal, error)
	MarketListIncompleteDeals(ctx context.Context) ([]storagemarket.MinerDeal, error)
	MarketSetAsk(ctx context.Context, price types.BigInt, verifiedPrice types.BigInt, duration abi.ChainEpoch, minPieceSize abi.PaddedPieceSize, maxPieceSize abi.PaddedPieceSize) error
	MarketGetAsk(ctx context.Context) (*storagemarket.SignedStorageAsk, error)
	MarketSetRetrievalAsk(ctx context.Context, rask *retrievalmarket.Ask) error
	MarketGetRetrievalAsk(ctx context.Context) (*retrievalmarket.Ask, error)
	MarketListDataTransfers(ctx context.Context) ([]DataTransferChannel, error)
	MarketDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error)

	DealsImportData(ctx context.Context, dealPropCid cid.Cid, file string) error
	DealsList(ctx context.Context) ([]storagemarket.StorageDeal, error)
	DealsConsiderOnlineStorageDeals(context.Context) (bool, error)
	DealsSetConsiderOnlineStorageDeals(context.Context, bool) error
	DealsConsiderOnlineRetrievalDeals(context.Context) (bool, error)
	DealsSetConsiderOnlineRetrievalDeals(context.Context, bool) error
	DealsPieceCidBlocklist(context.Context) ([]cid.Cid, error)
	DealsSetPieceCidBlocklist(context.Context, []cid.Cid) error
	DealsConsiderOfflineStorageDeals(context.Context) (bool, error)
	DealsSetConsiderOfflineStorageDeals(context.Context, bool) error
	DealsConsiderOfflineRetrievalDeals(context.Context) (bool, error)
	DealsSetConsiderOfflineRetrievalDeals(context.Context, bool) error

	StorageAddLocal(ctx context.Context, path string) error

	PiecesListPieces(ctx context.Context) ([]cid.Cid, error)
	PiecesListCidInfos(ctx context.Context) ([]cid.Cid, error)
	PiecesGetPieceInfo(ctx context.Context, pieceCid cid.Cid) (*piecestore.PieceInfo, error)
	PiecesGetCIDInfo(ctx context.Context, payloadCid cid.Cid) (*piecestore.CIDInfo, error)
}

StorageMiner is a low-level interface to the Filecoin network storage miner node

type SyncState 

type SyncState struct {
	ActiveSyncs []ActiveSync
}

type SyncStateStage 

type SyncStateStage int

func (SyncStateStage) String added in v0.6.2 

func (v SyncStateStage) String() string

type Version 

type Version struct {
	Version string

	// APIVersion is a binary encoded semver version of the remote implementing
	// this api
	//
	// See APIVersion in build/version.go
	APIVersion build.Version

	// Seconds
	BlockDelay uint64
}

Version provides various build-time information

func (Version) String 

func (v Version) String() string

type VoucherCreateResult added in v0.6.0 

type VoucherCreateResult struct {
	// Voucher that was created, or nil if there was an error or if there
	// were insufficient funds in the channel
	Voucher *paych.SignedVoucher
	// Shortfall is the additional amount that would be needed in the channel
	// in order to be able to create the voucher
	Shortfall types.BigInt
}

VoucherCreateResult is the response to calling PaychVoucherCreate

type VoucherSpec 

type VoucherSpec struct {
	Amount      types.BigInt
	TimeLockMin abi.ChainEpoch
	TimeLockMax abi.ChainEpoch
	MinSettle   abi.ChainEpoch

	Extra *paych.ModVerifyParams
}

type WorkerAPI added in v0.3.1 

type WorkerAPI interface {
	Version(context.Context) (build.Version, error)

	TaskTypes(context.Context) (map[sealtasks.TaskType]struct{}, error) // TaskType -> Weight
	Paths(context.Context) ([]stores.StoragePath, error)
	Info(context.Context) (storiface.WorkerInfo, error)

	AddPiece(ctx context.Context, sector abi.SectorID, pieceSizes []abi.UnpaddedPieceSize, newPieceSize abi.UnpaddedPieceSize, pieceData storage.Data) (abi.PieceInfo, error)

	storage.Sealer

	MoveStorage(ctx context.Context, sector abi.SectorID, types stores.SectorFileType) error

	UnsealPiece(context.Context, abi.SectorID, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize, abi.SealRandomness, cid.Cid) error
	ReadPiece(context.Context, io.Writer, abi.SectorID, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize) (bool, error)

	StorageAddLocal(ctx context.Context, path string) error

	Fetch(context.Context, abi.SectorID, stores.SectorFileType, stores.PathType, stores.AcquireMode) error

	Closing(context.Context) (<-chan struct{}, error)
}

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