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lnwallet: when signing a new commitment state, store a CommitDiff

This commit is contained in:
Olaoluwa Osuntokun 2017-11-09 22:56:08 -08:00
parent 611412bab0
commit 769fe5cc13
No known key found for this signature in database
GPG Key ID: 964EA263DD637C21
1 changed files with 13 additions and 14 deletions
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27
lnwallet/channel.go
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@ -2842,6 +2842,7 @@ func (lc *LightningChannel) SignNextCommitment() (*btcec.Signature, []*btcec.Sig
// Determine the last update on the remote log that has been locked in.
remoteACKedIndex := lc.localCommitChain.tail().theirMessageIndex
remoteHtlcIndex := lc.localCommitChain.tail().theirHtlcIndex
// Before we extend this new commitment to the remote commitment chain,
// ensure that we aren't violating any of the constraints the remote
@ -2939,26 +2940,24 @@ func (lc *LightningChannel) SignNextCommitment() (*btcec.Signature, []*btcec.Sig
htlcSigs = append(htlcSigs, jobResp.sig)
}
// Extend the remote commitment chain by one with the addition of our
// latest commitment update.
lc.remoteCommitChain.addCommitment(newCommitView)
// ...
commitDiff, err := lc.createCommitDiff(newCommitView)
// As we're about to proposer a new commitment state for the remote
// party, we'll write this pending state to disk before we exit, so we
// can retransmit it if necessary.
commitDiff, err := lc.createCommitDiff(newCommitView, sig, htlcSigs)
if err != nil {
return nil, nil, err
}
// ...
if err := channeldb.AddCommitDiff(lc.channelState.Db,
&lc.channelState.FundingOutpoint,
commitDiff); err != nil {
if lc.channelState.AppendRemoteCommitChain(commitDiff); err != nil {
return nil, nil, err
}
if err := lc.channelState.UpdateHTLCs(newCommitView.htlcs(false)); err != nil {
return nil, nil, err
}
// TODO(roasbeef): check that one eclair bug
// * need to retransmit on first state still?
// * after initial reconnect
// Extend the remote commitment chain by one with the addition of our
// latest commitment update.
lc.remoteCommitChain.addCommitment(newCommitView)
// If we are the channel initiator then we would have signed any sent
// fee update at this point, so mark this update as pending ACK, and