rangefeed: improve a comment

Release note: None
cockroachdb · Oct 28, 2021 · fde4604 · fde4604
1 parent 82f6f2e
commit fde4604
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/pkg/kv/kvclient/rangefeed/rangefeed.go b/pkg/kv/kvclient/rangefeed/rangefeed.go
@@ -193,8 +193,9 @@ func (f *RangeFeed) Start(ctx context.Context) error {
 	return nil
 }
 
-// Close closes the RangeFeed and waits for it to shut down.
-// Close is idempotent.
+// Close closes the RangeFeed and waits for it to shut down; it does
+// idempotently. It's guaranteed that no future handlers will be invoked after
+// this point.
 func (f *RangeFeed) Close() {
 	f.closeOnce.Do(func() {
 		f.cancel()