b78cd533f2
In this commit, we introduce two new interfaces: SpendHintCache and ConfirmHintCache for a height hint cache. The SpendHintCache is responsible for maintaining the earliest height at which an outpoint could have been spent within the chain, while the ConfirmHintCache is responsible for maintaining the earliest height at which a transaction confirms within the chain. We also add an implementation of these interfaces with a single struct HeightHintCache, backed by a channeldb instance, which will cary the duties of the interfaces above. |
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|---|---|---|
| .. | ||
| bitcoindnotify | ||
| btcdnotify | ||
| neutrinonotify | ||
| height_hint_cache_test.go | ||
| height_hint_cache.go | ||
| interface_debug.go | ||
| interface_test.go | ||
| interface.go | ||
| log.go | ||
| queue_test.go | ||
| queue.go | ||
| README.md | ||
| txconfnotifier_test.go | ||
| txconfnotifier.go | ||
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
txidhas 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