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lnwallet: RevokeCurrentCommitment now returns the set of active HTLC's

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In this commit, we modify the RevokeCurrentCommitment method to now
return the set of active HTLC’s. This will be used by callers in the
future to update other sub-systems when the set of HTLC’s on the
commitment changes, and can also be used on the RPC level to
synchronize systems level integration tests.
This commit is contained in:
Olaoluwa Osuntokun 2018-01-16 18:09:32 -08:00
parent 75d2f09d4c
commit 5f6c15cfa4
No known key found for this signature in database
GPG key ID: 964EA263DD637C21
1 changed files with 8 additions and 5 deletions
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13
lnwallet/channel.go
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@ -3793,14 +3793,17 @@ func (lc *LightningChannel) FullySynced() bool {
// transaction in the local commitment chain. As a result the edge of our
// revocation window is extended by one, and the tail of our local commitment
// chain is advanced by a single commitment. This now lowest unrevoked
// commitment becomes our currently accepted state within the channel.
func (lc *LightningChannel) RevokeCurrentCommitment() (*lnwire.RevokeAndAck, error) {
// commitment becomes our currently accepted state within the channel. This
// method also returns the set of HTLC's currently active within the commitment
// transaction. This return value allows callers to act once an HTLC has been
// locked into our commitment transaction.
func (lc *LightningChannel) RevokeCurrentCommitment() (*lnwire.RevokeAndAck, []channeldb.HTLC, error) {
lc.Lock()
defer lc.Unlock()
revocationMsg, err := lc.generateRevocation(lc.currentHeight)
if err != nil {
return nil, err
return nil, nil, err
}
walletLog.Tracef("ChannelPoint(%v): revoking height=%v, now at height=%v",
@ -3817,7 +3820,7 @@ func (lc *LightningChannel) RevokeCurrentCommitment() (*lnwire.RevokeAndAck, err
newCommitment := chainTail.toDiskCommit(true)
err = lc.channelState.UpdateCommitment(newCommitment)
if err != nil {
return nil, err
return nil, nil, err
}
walletLog.Tracef("ChannelPoint(%v): state transition accepted: "+
@ -3829,7 +3832,7 @@ func (lc *LightningChannel) RevokeCurrentCommitment() (*lnwire.RevokeAndAck, err
&lc.channelState.FundingOutpoint,
)
return revocationMsg, nil
return revocationMsg, newCommitment.Htlcs, nil
}
// ReceiveRevocation processes a revocation sent by the remote party for the