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sweep: add a new event TxUnknownSpend

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yyforyongyu 2025-01-24 03:17:42 +08:00
parent 8c9ba327cc
commit 61cec43951
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GPG key ID: 9BCD95C4FF296868
1 changed files with 21 additions and 6 deletions
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27
sweep/fee_bumper.go
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@ -95,6 +95,17 @@ const (
// TxConfirmed is sent when the tx is confirmed. // TxConfirmed is sent when the tx is confirmed.
TxConfirmed TxConfirmed
// TxUnknownSpend is sent when at least one of the inputs is spent but
// not by the current sweeping tx, this can happen when,
// - a remote party has replaced our sweeping tx by spending the
// input(s), e.g., via the direct preimage spend on our outgoing HTLC.
// - a third party has replaced our sweeping tx, e.g., the anchor output
// after 16 blocks.
// - A previous sweeping tx has confirmed but the fee bumper is not
// aware of it, e.g., a restart happens right after the sweeping tx is
// broadcast and confirmed.
TxUnknownSpend
// TxFatal is sent when the inputs in this tx cannot be retried. Txns // TxFatal is sent when the inputs in this tx cannot be retried. Txns
// will end up in this state if they have encountered a non-fee related // will end up in this state if they have encountered a non-fee related
// error, which means they cannot be retried with increased budget. // error, which means they cannot be retried with increased budget.
@ -115,6 +126,8 @@ func (e BumpEvent) String() string {
return "Replaced" return "Replaced"
case TxConfirmed: case TxConfirmed:
return "Confirmed" return "Confirmed"
case TxUnknownSpend:
return "UnknownSpend"
case TxFatal: case TxFatal:
return "Fatal" return "Fatal"
default: default:
@ -280,7 +293,8 @@ func (b *BumpResult) String() string {
// Validate validates the BumpResult so it's safe to use. // Validate validates the BumpResult so it's safe to use.
func (b *BumpResult) Validate() error { func (b *BumpResult) Validate() error {
isFailureEvent := b.Event == TxFailed || b.Event == TxFatal isFailureEvent := b.Event == TxFailed || b.Event == TxFatal ||
b.Event == TxUnknownSpend
// Every result must have a tx except the fatal or failed case. // Every result must have a tx except the fatal or failed case.
if b.Tx == nil && !isFailureEvent { if b.Tx == nil && !isFailureEvent {
@ -754,6 +768,11 @@ func (t *TxPublisher) removeResult(result *BumpResult) {
log.Debugf("Removing monitor record=%v due to fatal err: %v", log.Debugf("Removing monitor record=%v due to fatal err: %v",
id, result.Err) id, result.Err)
case TxUnknownSpend:
// Remove the record if there's an unknown spend.
log.Debugf("Removing monitor record=%v due unknown spent: "+
"%v", id, result.Err)
// Do nothing if it's neither failed or confirmed. // Do nothing if it's neither failed or confirmed.
default: default:
log.Tracef("Skipping record removal for id=%v, event=%v", id, log.Tracef("Skipping record removal for id=%v, event=%v", id,
@ -1120,12 +1139,8 @@ func (t *TxPublisher) handleThirdPartySpent(r *monitorRecord) {
// Create a result that will be sent to the resultChan which is // Create a result that will be sent to the resultChan which is
// listened by the caller. // listened by the caller.
//
// TODO(yy): create a new state `TxThirdPartySpent` to notify the
// sweeper to remove the input, hence moving the monitoring of inputs
// spent inside the fee bumper.
result := &BumpResult{ result := &BumpResult{
Event: TxFailed, Event: TxUnknownSpend,
Tx: r.tx, Tx: r.tx,
requestID: r.requestID, requestID: r.requestID,
Err: ErrThirdPartySpent, Err: ErrThirdPartySpent,