60 lines
2.3 KiB
Go
60 lines
2.3 KiB
Go
package contractcourt
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import (
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"io"
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"github.com/btcsuite/btcd/wire"
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"github.com/lightningnetwork/lnd/channeldb"
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"github.com/lightningnetwork/lnd/htlcswitch/hop"
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"github.com/lightningnetwork/lnd/input"
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"github.com/lightningnetwork/lnd/invoices"
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"github.com/lightningnetwork/lnd/lntypes"
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"github.com/lightningnetwork/lnd/lnwallet/chainfee"
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"github.com/lightningnetwork/lnd/lnwire"
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"github.com/lightningnetwork/lnd/sweep"
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)
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// Registry is an interface which represents the invoice registry.
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type Registry interface {
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// LookupInvoice attempts to look up an invoice according to its 32
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// byte payment hash.
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LookupInvoice(lntypes.Hash) (channeldb.Invoice, error)
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// NotifyExitHopHtlc attempts to mark an invoice as settled. If the
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// invoice is a debug invoice, then this method is a noop as debug
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// invoices are never fully settled. The return value describes how the
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// htlc should be resolved. If the htlc cannot be resolved immediately,
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// the resolution is sent on the passed in hodlChan later.
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NotifyExitHopHtlc(payHash lntypes.Hash, paidAmount lnwire.MilliSatoshi,
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expiry uint32, currentHeight int32,
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circuitKey channeldb.CircuitKey, hodlChan chan<- interface{},
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payload invoices.Payload) (invoices.HtlcResolution, error)
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// HodlUnsubscribeAll unsubscribes from all htlc resolutions.
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HodlUnsubscribeAll(subscriber chan<- interface{})
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}
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// OnionProcessor is an interface used to decode onion blobs.
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type OnionProcessor interface {
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// ReconstructHopIterator attempts to decode a valid sphinx packet from
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// the passed io.Reader instance.
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ReconstructHopIterator(r io.Reader, rHash []byte) (hop.Iterator, error)
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}
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// UtxoSweeper defines the sweep functions that contract court requires.
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type UtxoSweeper interface {
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// SweepInput sweeps inputs back into the wallet.
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SweepInput(input input.Input, params sweep.Params) (chan sweep.Result,
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error)
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// CreateSweepTx accepts a list of inputs and signs and generates a txn
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// that spends from them. This method also makes an accurate fee
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// estimate before generating the required witnesses.
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CreateSweepTx(inputs []input.Input, feePref sweep.FeePreference,
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currentBlockHeight uint32) (*wire.MsgTx, error)
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// RelayFeePerKW returns the minimum fee rate required for transactions
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// to be relayed.
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RelayFeePerKW() chainfee.SatPerKWeight
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}
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