とりあえずリークしなくなった

src/sora_sdk/__init__.py

@@ -36,3 +36,29 @@ def __init__(self, track):
     def __del__(self):
         super().__del__()
         del self.__track
+
+
+class Sora(SoraImpl):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._connections = []
+
+    def __del__(self):
+        self._connections.clear()
+
+    def create_connection(self, *args, **kwargs):
+        # 新しい接続を生成してリストに追加
+        conn = super().create_connection(*args, **kwargs)
+        self._connections.append(conn)
+        return conn
+
+    def _remove_connection(self, conn):
+        # 閉じられた接続をリストから除外
+        if conn in self._connections:
+            self._connections.remove(conn)
+
+    def create_audio_source(self, *args):
+        return super().create_audio_source(*args)
+
+    def create_video_source(self):
+        return super().create_video_source()

src/sora_sdk_ext.cpp

@@ -288,38 +288,6 @@ PyType_Slot connection_slots[] = {
     {Py_tp_clear, (void*)connection_tp_clear},
     {0, nullptr}};
 
-int sora_tp_traverse(PyObject* self, visitproc visit, void* arg) {
-  if (!nb::inst_ready(self)) {
-    return 0;
-  }
-
-  Sora* sora = nb::inst_ptr<Sora>(self);
-  for (auto wc : sora->weak_connections_) {
-    auto conn = wc.lock();
-    if (conn) {
-      nb::object conn_obj = nb::find(conn);
-      Py_VISIT(conn_obj.ptr());
-    }
-  }
-
-  return 0;
-}
-
-int sora_tp_clear(PyObject* self) {
-  if (!nb::inst_ready(self)) {
-    return 0;
-  }
-
-  Sora* sora = nb::inst_ptr<Sora>(self);
-  sora->weak_connections_.clear();
-
-  return 0;
-}
-
-PyType_Slot sora_slots[] = {{Py_tp_traverse, (void*)sora_tp_traverse},
-                            {Py_tp_clear, (void*)sora_tp_clear},
-                            {0, nullptr}};
-
 /**
  * Python で利用するすべてのクラスと定数は以下のように定義しなければならない
  */
@@ -561,7 +529,7 @@ NB_MODULE(sora_sdk_ext, m) {
       .def("__del__", &SoraVideoFrameTransformer::Del)
       .def_rw("on_transform", &SoraVideoFrameTransformer::on_transform_);
 
-  nb::class_<Sora>(m, "Sora", nb::type_slots(sora_slots))
+  nb::class_<Sora>(m, "SoraImpl")
       .def(nb::init<std::optional<bool>, std::optional<std::string>>(),
            "use_hardware_encoder"_a = nb::none(), "openh264"_a = nb::none())
       .def("create_connection", &Sora::CreateConnection, "signaling_urls"_a,