make range command (that might be broken?)

internal/vendored/hashicorp/golang-lru/lru.go

@@ -225,6 +225,16 @@ func (c *Cache[K, V]) GetOldest() (key K, value V, ok bool) {
 	return
 }
 
+func (c *Cache[K, V]) Range(fn func (k K, v V)) {
+	c.lock.RLock()
+	keys := c.lru.Keys()
+	values := c.lru.Values()
+	c.lock.RUnlock()
+	for i := 0; i < len(keys); i++ {
+		fn(keys[i], values[i])
+	}
+}
+
 // Keys returns a slice of the keys in the cache, from oldest to newest.
 func (c *Cache[K, V]) Keys() []K {
 	c.lock.RLock()

stats.go

@@ -379,16 +379,7 @@ func (s *statStore) Flush() {
 	}
 	s.mu.RUnlock()
 
-	for _, name := range s.counters.Keys() {
-		counter, ok := s.counters.Peek(name)
-		if !ok {
-			// This counter was removed between retrieving the names
-			// and finding this specific counter.
-			continue
-		}
-		s.flushCounter(name, counter)
-	}
-
+	s.counters.Range(s.flushCounter)
 	s.gauges.Range(func(key, v interface{}) bool {
 		s.sink.FlushGauge(key.(string), v.(*gauge).Value())
 		return true