lnd.xprv/chainntnfs
Johan T. Halseth b08fc05390
chainntnfs/btcd: move NotifySpent to after recording the outpoint
This commit moves the call to the btcd backend to start watching an
outpoint for spentness to after we have recorded the outpoint in our
list of clients. This is done to avoid a race that could occur if btcd
quicly sent a spend notification before we had been able to record it in
our map, essentially losing it.
2018-03-28 10:21:08 +02:00
..
bitcoindnotify chainntnfs: ensure all block epoch notifications are sent *in order* 2018-02-09 16:13:28 -08:00
btcdnotify chainntnfs/btcd: move NotifySpent to after recording the outpoint 2018-03-28 10:21:08 +02:00
neutrinonotify chainntnfs/neutrinonotify: log height hint for spend notifications 2018-03-01 16:49:28 -08:00
interface_test.go chainntnfs: fix new golang 1.10 vet/test warning 2018-02-19 18:06:35 -08:00
interface.go multi: comprehensive typo fixes across all packages 2018-02-06 19:11:11 -08:00
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 negative confirmation notifications. 2017-12-14 19:16:15 -08:00
txconfnotifier.go multi: fix several typos in godoc comments 2017-12-17 18:40:05 -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