lnd.xprv/chainntnfs
Johan T. Halseth 5d6dd90d18
chainntnfs/btcdnotify: correctly notify on confirmed rescan spends
This commit fixes a recently introduced bug in the btcdnotifier, where
we would skip all spend clients waiting for a confirmed spend in
txUpdates. The regular case where a spend is included in a new block was
correctly handled in onBlockConnected, but the txUpdates queue is also
used for confirmed spends during rescans, which we would miss. This
commit fixes that by checking if the tx update is confirmed or
unconfirmed, and acts accordingly.
2018-04-16 20:09:08 +02:00
..
bitcoindnotify Merge pull request #889 from wpaulino/chainnotifier-updates 2018-04-12 19:21:26 -07:00
btcdnotify chainntnfs/btcdnotify: correctly notify on confirmed rescan spends 2018-04-16 20:09:08 +02:00
neutrinonotify Merge pull request #889 from wpaulino/chainnotifier-updates 2018-04-12 19:21:26 -07:00
interface_test.go chainntfnfs test: add testSpendNotificationMempoolSpends for btcd backend 2018-04-03 11:24:08 +02:00
interface.go Merge pull request #889 from wpaulino/chainnotifier-updates 2018-04-12 19:21:26 -07:00
log.go lnd: remove seelog logger 2017-06-25 14:19:56 +01:00
queue_test.go chainntnfs: Implement unbounded concurrent-safe FIFO queue. 2017-11-16 15:15:22 -08:00
queue.go chainntnfs: Implement unbounded concurrent-safe FIFO queue. 2017-11-16 15:15:22 -08:00
README.md multi: fix formatting issues in packge README's 2017-03-27 16:25:25 -07:00
txconfnotifier_test.go chainntnfs: send incremental update notifications for tx confirmations 2018-04-06 00:30:25 -04:00
txconfnotifier.go chainntnfs: send incremental update notifications for tx confirmations 2018-04-06 00:30:25 -04:00

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