lnd.xprv/chainntnfs
Olaoluwa Osuntokun 2f0639f1af
chainntnfs: add heightHint to RegisterSpendNtfn+ RegisterConfirmationsNtfn
This commit modifies two of the main methods in the ChainNotifier
interface to be more light client friendly. In order to do so, we now
tack on an extra parameter to the methods: heightHint. This value
represents the earliest known height that the chain should be scanned
when attempting to do a dispatch from historical data.

All tests have also been updated to use these new parameters properly
when excising the expected behavior of each interface implementation.
2017-05-11 15:20:38 -07:00
..
btcdnotify chainntnfs: add heightHint to RegisterSpendNtfn+ RegisterConfirmationsNtfn 2017-05-11 15:20:38 -07:00
interface_test.go chainntnfs: add heightHint to RegisterSpendNtfn+ RegisterConfirmationsNtfn 2017-05-11 15:20:38 -07:00
interface.go chainntnfs: add heightHint to RegisterSpendNtfn+ RegisterConfirmationsNtfn 2017-05-11 15:20:38 -07:00
log.go lnd: partially fix golint warnings 2017-03-13 16:30:23 -07:00
README.md multi: fix formatting issues in packge README's 2017-03-27 16:25:25 -07:00

chainntnfs

Build Status MIT licensed GoDoc

The chainntnfs package implements a set of interfaces which allow callers to receive notifications in response to specific on-chain events. The set of notifications available include:

  • Notifications for each new block connected to the current best chain.
  • Notifications once a txid has reached a specified number of confirmations.
  • Notifications once a target outpoint (txid:index) has been spent.

These notifications are used within lnd in order to properly handle the workflows for: channel funding, cooperative channel closures, forced channel closures, channel contract breaches, sweeping time-locked outputs, and finally pruning the channel graph.

This package is intentionally general enough to be applicable outside the specific use cases within lnd outlined above. The current sole concrete implementation of the ChainNotifier interface depends on btcd.

Installation and Updating

$ go get -u github.com/lightningnetwork/lnd/chainntnfs