updated Store.GetOrSet to lock first with RLock/RUnlock

tools/store/store.go

@@ -151,17 +151,19 @@ func (s *Store[T]) Set(key string, value T) {
 // GetOrSet retrieves a single existing value for the provided key
 // or stores a new one if it doesn't exist.
 func (s *Store[T]) GetOrSet(key string, setFunc func() T) T {
-	s.mu.Lock()
+	// lock only reads to minimize locks contention
-	defer s.mu.Unlock()
+	s.mu.RLock()
+	v, ok := s.data[key]
+	s.mu.RUnlock()
 
+	if !ok {
+		s.mu.Lock()
+		v = setFunc()
 		if s.data == nil {
 			s.data = make(map[string]T)
 		}
-
-	v, ok := s.data[key]
-	if !ok {
-		v = setFunc()
 		s.data[key] = v
+		s.mu.Unlock()
 	}
 
 	return v