lnd.xprv/chainntnfs
Valentine Wallace a5e1cf9c97
chainntnfs: dispatch historical block ntfns to clients
If a client passes in their best known block when registering for block notifications, check to see if it's behind our best block. If so, dispatch the missed block notifications to the client.

This is necessary because clients that persist their best known block can miss new blocks while registering for notifications.
2018-08-10 01:08:57 -07:00
..
bitcoindnotify chainntnfs: dispatch historical block ntfns to clients 2018-08-10 01:08:57 -07:00
btcdnotify chainntnfs: dispatch historical block ntfns to clients 2018-08-10 01:08:57 -07:00
neutrinonotify chainntnfs: dispatch historical block ntfns to clients 2018-08-10 01:08:57 -07:00
interface_test.go multi: update to latest RegisterBlockEpochNtfn interface 2018-08-10 01:08:57 -07:00
interface.go chainntnfs: dispatch historical block ntfns to clients 2018-08-10 01:08:57 -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/txconfnotifier: make confirmation notifcation registration async 2018-07-31 18:23:25 -07:00
txconfnotifier.go chainntnfs/txconfnotifier: make confirmation notifcation registration async 2018-07-31 18:23:25 -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