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lnwallet/chancloser: add aux chan closer, use in coop flow

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This commit is contained in:
Olaoluwa Osuntokun
2024-05-29 19:57:42 +02:00
committed by Oliver Gugger
parent 7ff251ca44
commit 8d651b9370
4 changed files with 269 additions and 17 deletions
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28
lnwallet/chancloser/interface.go
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@@ -6,11 +6,13 @@ import (
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/btcsuite/btcd/wire"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/fn"
"github.com/lightningnetwork/lnd/input"
"github.com/lightningnetwork/lnd/lntypes"
"github.com/lightningnetwork/lnd/lnwallet"
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/lightningnetwork/lnd/tlv"
)
// CoopFeeEstimator is used to estimate the fee of a co-op close transaction.
@@ -32,6 +34,14 @@ type Channel interface { //nolint:interfacebloat
// ChannelPoint returns the channel point of the target channel.
ChannelPoint() wire.OutPoint
// LocalCommitmentBlob may return the auxiliary data storage blob for
// the local commitment transaction.
LocalCommitmentBlob() fn.Option[tlv.Blob]
// FundingBlob may return the auxiliary data storage blob related to
// funding details for the channel.
FundingBlob() fn.Option[tlv.Blob]
// MarkCoopBroadcasted persistently marks that the channel close
// transaction has been broadcast.
MarkCoopBroadcasted(*wire.MsgTx, lntypes.ChannelParty) error
@@ -60,13 +70,23 @@ type Channel interface { //nolint:interfacebloat
// LocalBalanceDust returns true if when creating a co-op close
// transaction, the balance of the local party will be dust after
// accounting for any anchor outputs.
LocalBalanceDust() bool
// accounting for any anchor outputs. The dust value for the local
// party is also returned.
LocalBalanceDust() (bool, btcutil.Amount)
// RemoteBalanceDust returns true if when creating a co-op close
// transaction, the balance of the remote party will be dust after
// accounting for any anchor outputs.
RemoteBalanceDust() bool
// accounting for any anchor outputs. The dust value the remote party
// is also returned.
RemoteBalanceDust() (bool, btcutil.Amount)
// CommitBalances returns the local and remote balances in the current
// commitment state.
CommitBalances() (btcutil.Amount, btcutil.Amount)
// CommitFee returns the commitment fee for the current commitment
// state.
CommitFee() btcutil.Amount
// RemoteUpfrontShutdownScript returns the upfront shutdown script of
// the remote party. If the remote party didn't specify such a script,