add constructor for lazy-loading service

src/service.rs

@@ -1,5 +1,5 @@
 use std::{
-    collections::{BTreeMap, HashMap},
+    collections::BTreeMap,
     sync::{Arc, Mutex as StdMutex, OnceLock},
 };
 
@@ -88,10 +88,7 @@ impl Services {
                     typing: rooms::edus::typing::Service::new(),
                 },
                 event_handler: rooms::event_handler::Service,
-                lazy_loading: rooms::lazy_loading::Service {
-                    db,
-                    lazy_load_waiting: Mutex::new(HashMap::new()),
-                },
+                lazy_loading: rooms::lazy_loading::Service::new(db),
                 metadata: db,
                 outlier: db,
                 pdu_metadata: rooms::pdu_metadata::Service {

src/service/rooms/lazy_loading.rs

@@ -11,10 +11,10 @@ mod data;
 pub(crate) use data::Data;
 
 pub(crate) struct Service {
-    pub(crate) db: &'static dyn Data,
+    db: &'static dyn Data,
 
     #[allow(clippy::type_complexity)]
-    pub(crate) lazy_load_waiting: Mutex<
+    lazy_load_waiting: Mutex<
         HashMap<
             (OwnedUserId, OwnedDeviceId, OwnedRoomId, PduCount),
             HashSet<OwnedUserId>,
@@ -23,6 +23,13 @@ pub(crate) struct Service {
 }
 
 impl Service {
+    pub(crate) fn new(db: &'static dyn Data) -> Self {
+        Self {
+            db,
+            lazy_load_waiting: Mutex::new(HashMap::new()),
+        }
+    }
+
     #[tracing::instrument(skip(self))]
     pub(crate) fn lazy_load_was_sent_before(
         &self,