🩹 update mutex logic

Co-Authored-By: RW <7063188+ReneWerner87@users.noreply.github.com>

middleware/cache/store.go

@@ -21,30 +21,28 @@ type storage struct {
 }
 
 func (s *storage) get(key string) (e *entry) {
-	s.mux.Lock()
-	defer s.mux.Lock()
 	if s.cfg.Storage != nil {
 		raw, err := s.cfg.Storage.Get(key)
 		if err != nil || raw == nil {
-			return
+			return e
 		}
 		if _, err := e.UnmarshalMsg(raw); err != nil {
-			return
+			return e
 		}
 		body, err := s.cfg.Storage.Get(key + "_body")
 		if err != nil || body == nil {
-			return
+			return e
 		}
 		e.body = body
 	} else {
+		s.mux.Lock()
 		e = s.entries[key]
+		s.mux.Lock()
 	}
-	return
+	return e
 }
 
 func (s *storage) set(key string, e *entry) {
-	s.mux.Lock()
-	defer s.mux.Lock()
 	if s.cfg.Storage != nil {
 		// seperate body since we dont want to encode big payloads
 		body := e.body
@@ -55,17 +53,19 @@ func (s *storage) set(key string, e *entry) {
 			_ = s.cfg.Storage.Set(key+"_body", body, s.cfg.Expiration)
 		}
 	} else {
+		s.mux.Lock()
 		s.entries[key] = e
+		s.mux.Unlock()
 	}
 }
 
 func (s *storage) delete(key string) {
-	s.mux.Lock()
-	defer s.mux.Lock()
 	if s.cfg.Storage != nil {
 		_ = s.cfg.Storage.Delete(key)
 		_ = s.cfg.Storage.Delete(key + "_body")
 	} else {
+		s.mux.Lock()
 		delete(s.entries, key)
+		s.mux.Unlock()
 	}
 }