Avoid contention with early check

iotaledger · Dec 12, 2023 · a69e15f · a69e15f
1 parent 7bac679
commit a69e15f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/pkg/storage/permanent/settings.go b/pkg/storage/permanent/settings.go
@@ -332,6 +332,11 @@ func (s *Settings) SetLatestNonEmptySlot(slot iotago.SlotIndex) (err error) {
 }
 
 func (s *Settings) AdvanceLatestNonEmptySlot(slot iotago.SlotIndex) (err error) {
+	// Avoid write-locking within the Compute with an early check.
+	if s.LatestNonEmptySlot() >= slot {
+		return nil
+	}
+
 	if _, err = s.storeLatestNonEmptySlot.Compute(func(latestNonEmptySlot iotago.SlotIndex, _ bool) (newValue iotago.SlotIndex, err error) {
 		if latestNonEmptySlot >= slot {
 			return latestNonEmptySlot, kvstore.ErrTypedValueNotChanged