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lnd/chainntnfs
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Johan T. Halseth 6b6beb4d7d
chainntnfs/btcd: start concurrent queues prior to connection 
We would establish the connection to the chain backend and start getting
block notifications before we had started the concurrent queues, which
would lead to the OnBlockConnected call being blocked, and a deadlock
(since GetBestBlock would never return).

Instead we make sure to start the queues before establishing the
connection, consuming the notifications right away.
2019-09-16 08:54:06 +02:00
..
bitcoindnotify multi: remove dead code 2019-09-10 17:21:59 +02:00
btcdnotify chainntnfs/btcd: start concurrent queues prior to connection 2019-09-16 08:54:06 +02:00
neutrinonotify lnwallet+chainntnfs: update to use latest neutrino APIs 2019-09-11 05:57:06 -07:00
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 chainntnfs/interface_test: lower mempool spend check timeout 2019-08-29 18:05:46 -07:00
interface.go chainntnfs/interface: stricter conf dispatch for txindex 2019-06-27 20:24:23 -07:00
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 chainntnfs/interface_test: lower mempool spend check timeout 2019-08-29 18:05:46 -07:00
txnotifier_test.go multi: remove dead code 2019-09-10 17:21:59 +02:00
txnotifier.go chainntnfs: acquire TxNotifier lock after closing quit chan 2019-08-22 13:49:38 -07:00

README.md

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