lib: make can_seek_beginning and can_seek_ns_from_origin methods return a status

[babeltrace.git] / src / bindings / python / bt2 / bt2 / message_iterator.py

diff --git a/src/bindings/python/bt2/bt2/message_iterator.py b/src/bindings/python/bt2/bt2/message_iterator.py
index 09bff7a4fa50cffe4b87f813c34eacec11d229e9..c392d420491918ac1c35fd910d9fc3783d732144 100644 (file)
--- a/src/bindings/python/bt2/bt2/message_iterator.py
+++ b/src/bindings/python/bt2/bt2/message_iterator.py
@@ -58,7 +58,11 @@ class _GenericMessageIterator(object._SharedObject, _MessageIterator):
 
     @property
     def can_seek_beginning(self):
-        res = self._can_seek_beginning(self._ptr)
+        status, res = self._can_seek_beginning(self._ptr)
+        utils._handle_func_status(
+            status,
+            'cannot check whether or not message iterator can seek its beginning',
+        )
         return res != 0
 
     def seek_beginning(self):
@@ -123,6 +127,14 @@ class _UserMessageIterator(_MessageIterator):
     def _component(self):
         return native_bt.bt2_get_user_component_from_user_msg_iter(self._bt_ptr)
 
+    @property
+    def _port(self):
+        port_ptr = native_bt.self_message_iterator_borrow_port(self._bt_ptr)
+        assert port_ptr is not None
+        return bt2_port._create_self_from_ptr_and_get_ref(
+            port_ptr, native_bt.PORT_TYPE_OUTPUT
+        )
+
     @property
     def addr(self):
         return int(self._bt_ptr)
@@ -146,7 +158,7 @@ class _UserMessageIterator(_MessageIterator):
         except Exception:
             raise
 
-        utils._check_type(msg, bt2_message._Message)
+        utils._check_type(msg, bt2_message._MessageConst)
 
         # The reference we return will be given to the message array.
         # However, the `msg` Python object may stay alive, if the user has kept