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31acace692
This commit improves the channel state machine by converting the objective PendingUpdates method to a subjective FullySynced method which is to be used in place of PendingUpdates. The new FullySynced method is fully encompassing and replaces any upper state required by the state machine which wraps this one. The new FullySynced method is identical to PendingUpdates aside from the fact that: it now also factors in the log message index of the remote commitment chain, and also introduces a concept of an “owed commitment”. A commitment chain owes a commitment if the height of the local commitment chain is higher than that of the remote chain.
lnwallet
The lnwallet package implements an abstracted wallet controller that is able to drive channel funding workflows, a number of script utilities, witness generation functions for the various Lightning scripts, revocation key derivation, and the commitment update state machine.
The package is used within lnd as the core wallet of the daemon. The wallet
itself is composed of several distinct interfaces that decouple the
implementation of things like signing and blockchain access. This separation
allows new WalletController implementations to be be easily dropped into
lnd without disrupting the code base. A series of integration tests at the
interface level are also in place to ensure conformance of the implementation
with the interface.
Installation and Updating
$ go get -u github.com/lightningnetwork/lnd/lnwallet