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chainntnfs: query the hint cache before registering a conf ntfn

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In this commit, we alter the different chain notifiers to query their
height hint cache before registering a confimation notification. We do
this as it's possible that the cache has a higher height hint, which
can potentially reduce the amount of blocked fetched when attempting
historical dispatches.
This commit is contained in:
Wilmer Paulino 2018-08-14 17:54:21 -07:00
parent 30fd219b1c
commit 7e872566c4
No known key found for this signature in database
GPG Key ID: 6DF57B9F9514972F
3 changed files with 36 additions and 0 deletions
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12
chainntnfs/bitcoindnotify/bitcoind.go
View File

@ -869,6 +869,18 @@ type confirmationNotification struct {
func (b *BitcoindNotifier) RegisterConfirmationsNtfn(txid *chainhash.Hash,
_ []byte, numConfs, heightHint uint32) (*chainntnfs.ConfirmationEvent, error) {
// Before proceeding to register the notification, we'll query our
// height hint cache to determine whether a better one exists.
if hint, err := b.confirmHintCache.QueryConfirmHint(*txid); err == nil {
if hint > heightHint {
chainntnfs.Log.Debugf("Using height hint %d retrieved "+
"from cache for %v", hint, txid)
heightHint = hint
}
}
// Construct a notification request for the transaction and send it to
// the main event loop.
ntfn := &confirmationNotification{
ConfNtfn: chainntnfs.ConfNtfn{
ConfID: atomic.AddUint64(&b.confClientCounter, 1),

12
chainntnfs/btcdnotify/btcd.go
View File

@ -916,6 +916,18 @@ type confirmationNotification struct {
func (b *BtcdNotifier) RegisterConfirmationsNtfn(txid *chainhash.Hash, _ []byte,
numConfs, heightHint uint32) (*chainntnfs.ConfirmationEvent, error) {
// Before proceeding to register the notification, we'll query our
// height hint cache to determine whether a better one exists.
if hint, err := b.confirmHintCache.QueryConfirmHint(*txid); err == nil {
if hint > heightHint {
chainntnfs.Log.Debugf("Using height hint %d retrieved "+
"from cache for %v", hint, txid)
heightHint = hint
}
}
// Construct a notification request for the transaction and send it to
// the main event loop.
ntfn := &confirmationNotification{
ConfNtfn: chainntnfs.ConfNtfn{
ConfID: atomic.AddUint64(&b.confClientCounter, 1),

12
chainntnfs/neutrinonotify/neutrino.go
View File

@ -869,6 +869,18 @@ func (n *NeutrinoNotifier) RegisterConfirmationsNtfn(txid *chainhash.Hash,
pkScript []byte,
numConfs, heightHint uint32) (*chainntnfs.ConfirmationEvent, error) {
// Before proceeding to register the notification, we'll query our
// height hint cache to determine whether a better one exists.
if hint, err := n.confirmHintCache.QueryConfirmHint(*txid); err == nil {
if hint > heightHint {
chainntnfs.Log.Debugf("Using height hint %d retrieved "+
"from cache for %v", hint, txid)
heightHint = hint
}
}
// Construct a notification request for the transaction and send it to
// the main event loop.
ntfn := &confirmationsNotification{
ConfNtfn: chainntnfs.ConfNtfn{
ConfID: atomic.AddUint64(&n.confClientCounter, 1),