lnd.xprv/chainntnfs
Johan T. Halseth 753f30a6ff
chainntnfs/neutrino: don't ignore failed filter fetches
Earlier GetCFilter could return a nil-error along with a nil-filter in
cases where we failed to fetch the filter. We would just ignore the
block causing us to miss potential crucial information.

Now that GetCFilter will return an error in cases where the fetch
failed, the filter will never be nil (even for blocks with only coinbase
transactions), and we'll instead return an error.

We also increase the number of retries for the filter from the default 2
to 5.
2019-10-15 11:25:31 +02:00
..
bitcoindnotify multi: fix canceled spelling 2019-10-03 17:27:36 +02:00
btcdnotify multi: fix canceled spelling 2019-10-03 17:27:36 +02:00
neutrinonotify chainntnfs/neutrino: don't ignore failed filter fetches 2019-10-15 11:25:31 +02:00
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 multi: remove dead code 2019-09-10 17:21:59 +02:00
interface_dev.go chainntnfs: switch debug tag to dev 2018-10-05 12:59:34 +09:00
interface_test.go multi: fix canceled spelling 2019-10-03 17:27:36 +02:00
interface.go multi: fix canceled spelling 2019-10-03 17:27:36 +02:00
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 multi: support sync freelist option within btcwallet 2019-10-04 12:19:40 -04:00
txnotifier_test.go multi: remove dead code 2019-09-10 17:21:59 +02:00
txnotifier.go chainntnfs: only log confirmation notification registration once 2019-10-03 14:05:28 -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