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channelnotifier: add event for fully resolved channel

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We'll want to be informed about a channel that's been fully resolved on
chain in case it was involved in a force close. We add a new event type
and emit method for it.
This commit is contained in:
Oliver Gugger 2021-08-09 13:55:30 +02:00
parent 90db8de6fe
commit dcff9e5e26
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GPG key ID: 8E4256593F177720
1 changed files with 20 additions and 1 deletions
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21
channelnotifier/channelnotifier.go
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@ -65,6 +65,14 @@ type ClosedChannelEvent struct {
CloseSummary *channeldb.ChannelCloseSummary
}
// FullyResolvedChannelEvent represents a new event where a channel becomes
// fully resolved.
type FullyResolvedChannelEvent struct {
// ChannelPoint is the channelpoint for the newly fully resolved
// channel.
ChannelPoint *wire.OutPoint
}
// New creates a new channel notifier. The ChannelNotifier gets channel
// events from peers and from the chain arbitrator, and dispatches them to
// its clients.
@ -125,7 +133,6 @@ func (c *ChannelNotifier) NotifyPendingOpenChannelEvent(chanPoint wire.OutPoint,
// NotifyOpenChannelEvent notifies the channelEventNotifier goroutine that a
// channel has gone from pending open to open.
func (c *ChannelNotifier) NotifyOpenChannelEvent(chanPoint wire.OutPoint) {
// Fetch the relevant channel from the database.
channel, err := c.chanDB.FetchChannel(chanPoint)
if err != nil {
@ -155,6 +162,18 @@ func (c *ChannelNotifier) NotifyClosedChannelEvent(chanPoint wire.OutPoint) {
}
}
// NotifyFullyResolvedChannelEvent notifies the channelEventNotifier goroutine
// that a channel was fully resolved on chain.
func (c *ChannelNotifier) NotifyFullyResolvedChannelEvent(
chanPoint wire.OutPoint) {
// Send the resolved event to all channel event subscribers.
event := FullyResolvedChannelEvent{ChannelPoint: &chanPoint}
if err := c.ntfnServer.SendUpdate(event); err != nil {
log.Warnf("Unable to send resolved channel update: %v", err)
}
}
// NotifyActiveLinkEvent notifies the channelEventNotifier goroutine that a
// link has been added to the switch.
func (c *ChannelNotifier) NotifyActiveLinkEvent(chanPoint wire.OutPoint) {