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lnd.xprv/chainntnfs
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Olaoluwa Osuntokun 73cc28d5fb
chainntnfs/btcdnotify: implement spend+epoch ntfn cancellations 
This commit minifies the BtcdNotifier concrete implementation of the
ChainNotifier interface to allow callers to optionally cancel an
outstanding block epoch or spend notificaiton intent.

To do this efficiently, we now give each notification intent a unique
ID based on if it’s an epoch intent or a spend intent. We then use this
ID to reference back to the original un-dispatched notification intent
when the caller wishes to cancel the intent.
2017-02-21 01:42:53 -08:00
..
btcdnotify chainntnfs/btcdnotify: implement spend+epoch ntfn cancellations 2017-02-21 01:42:53 -08:00
interface_test.go chainntnfs: add the ability to cancel spend+epoch notifications 2017-02-21 01:42:50 -08:00
interface.go chainntnfs: add the ability to cancel spend+epoch notifications 2017-02-21 01:42:50 -08:00
log.go chainntnfs: add cross interface implementation tests 2016-09-01 19:13:10 -07:00
README.md multi: add link to LICENSE in README license badges (#100) 2017-01-12 16:31:08 -08:00

README.md

chainntnfs

[Build Status] (https://travis-ci.org/lightningnetwork/lnd) [MIT licensed] (https://github.com/lightningnetwork/lnd/blob/master/LICENSE) [GoDoc] (http://godoc.org/github.com/lightningnetwork/lnd/chainntnfs)

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