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contractcourt: set proper height hint for zero-conf channels

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The contractcourt's chain watcher is now zero-conf aware and will use
an appropriate heightHint when scanning the chain.
This commit is contained in:
eugene 2022-04-04 16:51:47 -04:00
parent 0ba67015da
commit 3fc53c673b
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GPG Key ID: 118759E83439A9B1
1 changed files with 16 additions and 1 deletions
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17
contractcourt/chain_watcher.go
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@ -266,12 +266,27 @@ func (c *chainWatcher) Start() error {
// As a height hint, we'll try to use the opening height, but if the // As a height hint, we'll try to use the opening height, but if the
// channel isn't yet open, then we'll use the height it was broadcast // channel isn't yet open, then we'll use the height it was broadcast
// at. // at. This may be an unconfirmed zero-conf channel.
heightHint := c.cfg.chanState.ShortChanID().BlockHeight heightHint := c.cfg.chanState.ShortChanID().BlockHeight
if heightHint == 0 { if heightHint == 0 {
heightHint = chanState.BroadcastHeight() heightHint = chanState.BroadcastHeight()
} }
// Since no zero-conf state is stored in a channel backup, the below
// logic will not be triggered for restored, zero-conf channels. Set
// the height hint for zero-conf channels.
if chanState.IsZeroConf() {
if chanState.ZeroConfConfirmed() {
// If the zero-conf channel is confirmed, we'll use the
// confirmed SCID's block height.
heightHint = chanState.ZeroConfRealScid().BlockHeight
} else {
// The zero-conf channel is unconfirmed. We'll need to
// use the FundingBroadcastHeight.
heightHint = chanState.BroadcastHeight()
}
}
localKey := chanState.LocalChanCfg.MultiSigKey.PubKey.SerializeCompressed() localKey := chanState.LocalChanCfg.MultiSigKey.PubKey.SerializeCompressed()
remoteKey := chanState.RemoteChanCfg.MultiSigKey.PubKey.SerializeCompressed() remoteKey := chanState.RemoteChanCfg.MultiSigKey.PubKey.SerializeCompressed()
multiSigScript, err := input.GenMultiSigScript( multiSigScript, err := input.GenMultiSigScript(