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9fcc7ee390
This commit moves the output structs to a new package as a preparation for moving more logic into that package.
58 lines
2 KiB
Go
58 lines
2 KiB
Go
package sweep
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import (
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"github.com/btcsuite/btcd/txscript"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btcutil"
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"github.com/lightningnetwork/lnd/lnwallet"
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)
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// SpendableOutput an interface which can be used by the breach arbiter to
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// construct a transaction spending from outputs we control.
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type SpendableOutput interface {
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// Amount returns the number of satoshis contained within the output.
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Amount() btcutil.Amount
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// Outpoint returns the reference to the output being spent, used to
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// construct the corresponding transaction input.
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OutPoint() *wire.OutPoint
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// WitnessType returns an enum specifying the type of witness that must
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// be generated in order to spend this output.
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WitnessType() lnwallet.WitnessType
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// SignDesc returns a reference to a spendable output's sign descriptor,
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// which is used during signing to compute a valid witness that spends
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// this output.
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SignDesc() *lnwallet.SignDescriptor
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// BuildWitness returns a valid witness allowing this output to be
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// spent, the witness should be attached to the transaction at the
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// location determined by the given `txinIdx`.
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BuildWitness(signer lnwallet.Signer, txn *wire.MsgTx,
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hashCache *txscript.TxSigHashes,
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txinIdx int) ([][]byte, error)
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}
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// CsvSpendableOutput is a SpendableOutput that contains all of the information
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// necessary to construct, sign, and sweep an output locked with a CSV delay.
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type CsvSpendableOutput interface {
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SpendableOutput
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// ConfHeight returns the height at which this output was confirmed.
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// A zero value indicates that the output has not been confirmed.
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ConfHeight() uint32
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// SetConfHeight marks the height at which the output is confirmed in
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// the chain.
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SetConfHeight(height uint32)
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// BlocksToMaturity returns the relative timelock, as a number of
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// blocks, that must be built on top of the confirmation height before
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// the output can be spent.
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BlocksToMaturity() uint32
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// OriginChanPoint returns the outpoint of the channel from which this
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// output is derived.
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OriginChanPoint() *wire.OutPoint
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}
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