lnd.xprv/chainntnfs
Conner Fromknecht 7a08825b1e
chainntnfs/bitcoindnotify: always call UpdateSpendDetails
This commit fixes a bug that would cause the
notifier not to commit spend hints for items
that are not found. This is done by calling
UpdateSpendDetails with a nil detail, permitting
the notifier to begin updating the spend hints
with new blocks that arrive at tip. The change
is designed to mimic the behavior for historical
confirmation dispatch.

The symptom of this bug is needing to do many
long rescans on startup, even if new blocks
arrive after the rescan had completed. With
this change, nodes will have to do the scans
once more before their hints will be properly
updated. Restarts from then on should not
have this behavior.
2019-04-01 18:20:52 -07:00
..
bitcoindnotify chainntnfs/bitcoindnotify: always call UpdateSpendDetails 2019-04-01 18:20:52 -07:00
btcdnotify chainntnfs: dispatch block notification for current tip upon registration 2019-01-21 13:58:52 -08:00
neutrinonotify multi: update build to latest version of neutrino+btcwallet 2019-03-13 15:03:39 -07:00
height_hint_cache_test.go chainntnfs: support caching confirm/spend hints for scripts 2019-01-21 13:57:43 -08:00
height_hint_cache.go chainntnfs: support caching confirm/spend hints for scripts 2019-01-21 13:57:43 -08:00
interface_dev.go chainntnfs: switch debug tag to dev 2018-10-05 12:59:34 +09:00
interface_test.go chainntnfs: skip catch up re-org test for neutrino temporarily 2019-02-05 19:38:48 -08:00
interface.go chainntnfs: dispatch block notification for current tip upon registration 2019-01-21 13:58:52 -08:00
log.go multi: init subsystem loggers via build pkg 2018-10-05 13:04:45 +09:00
README.md multi: fix formatting issues in packge README's 2017-03-27 16:25:25 -07:00
test_utils.go chainntnfs: modify GetTestTxidAndScript to generate new P2PKH scripts 2019-01-21 13:57:43 -08:00
txnotifier_test.go chainntnfs: add Done chan to events to signal reorg safety 2019-01-21 13:58:52 -08:00
txnotifier.go chainntnfs: fix RegisterSpend and RegisterConf height hint logs 2019-03-26 18:13:02 -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