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98cba87fb1
In this commit, we fix an existing bug that had ramifications within the operation of the lnd daemon. Before this commit, if the Stop() method was called, then the closeObserver would exit as well. This means that would no longer be watching for channel breaches on-chain, and could miss either a cooperative channel closure or an actual contract breach. To fix this, we now introduce a new method to stop for closeObserver: CancelObserver(). This should ONLY be called once either: the contract has been fully settled on-chain, or whom ever is watching the relevant signals has a newer version of the channel that it will watch instead.
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