lnd.xprv/chainntnfs
Wilmer Paulino ecd70deb8c
chainntnfs/txnotifer: detect confirmations and spends of scripts at tip
In this commit, we modify the TxNotifier's ConnectTip method to also
detect whether a registered script has been confirmed or spent on-chain
by a transaction in the connected block. Once detected, notifications
for them will be queued up for dispatch as with txids/outpoints.

We've also refactored the ConnectTip method into smaller and reusable
methods, which will serve useful later.
2019-01-21 13:57:43 -08:00
..
bitcoindnotify chainntnfs: initialize TxNotifier with new ReorgSafetyLimit 2019-01-11 16:58:15 -08:00
btcdnotify chainntnfs: initialize TxNotifier with new ReorgSafetyLimit 2019-01-11 16:58:15 -08:00
neutrinonotify chainntnfs: initialize TxNotifier with new ReorgSafetyLimit 2019-01-11 16:58:15 -08:00
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 Revert "chainntnfs/interface_test: run tests w/ disabled cache" 2018-10-31 09:20:22 -07:00
interface.go chainntnfs: extend SpendEvent with reorg channel 2018-10-30 17:59:31 -07:00
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: switch debug tag to dev 2018-10-05 12:59:34 +09:00
txnotifier_test.go chainntnfs: support caching confirm/spend hints for scripts 2019-01-21 13:57:43 -08:00
txnotifier.go chainntnfs/txnotifer: detect confirmations and spends of scripts at tip 2019-01-21 13:57:43 -08:00

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