bt2: Add `*ValueConst` classes and adapt tests

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

diff --git a/src/bindings/python/bt2/bt2/component.py b/src/bindings/python/bt2/bt2/component.py
index a68da615f1b542f187cc0637c83f4b7f325d94f1..acc5b22c7b71e931a451cf6cc86629770ed8739b 100644 (file)
--- a/src/bindings/python/bt2/bt2/component.py
+++ b/src/bindings/python/bt2/bt2/component.py
@@ -515,7 +515,7 @@ class _UserComponentType(type):
 
         # call user's __init__() method
         if params_ptr is not None:
-            params = bt2_value._create_from_ptr_and_get_ref(params_ptr)
+            params = bt2_value._create_from_const_ptr_and_get_ref(params_ptr)
         else:
             params = None
 
@@ -574,7 +574,7 @@ class _UserComponentType(type):
     def _bt_get_supported_mip_versions_from_native(cls, params_ptr, obj, log_level):
         # this can raise, but the native side checks the exception
         if params_ptr is not None:
-            params = bt2_value._create_from_ptr_and_get_ref(params_ptr)
+            params = bt2_value._create_from_const_ptr_and_get_ref(params_ptr)
         else:
             params = None
 
@@ -595,7 +595,7 @@ class _UserComponentType(type):
     def _bt_query_from_native(cls, priv_query_exec_ptr, object, params_ptr, method_obj):
         # this can raise, but the native side checks the exception
         if params_ptr is not None:
-            params = bt2_value._create_from_ptr_and_get_ref(params_ptr)
+            params = bt2_value._create_from_const_ptr_and_get_ref(params_ptr)
         else:
             params = None
 
@@ -706,7 +706,9 @@ class _UserComponent(metaclass=_UserComponentType):
         )
         self._user_port_connected(port, other_port)
 
-    def _create_trace_class(self, assigns_automatic_stream_class_id=True):
+    def _create_trace_class(
+        self, user_attributes=None, assigns_automatic_stream_class_id=True
+    ):
         ptr = self._bt_as_self_component_ptr(self._bt_ptr)
         tc_ptr = native_bt.trace_class_create(ptr)
 
@@ -716,12 +718,16 @@ class _UserComponent(metaclass=_UserComponentType):
         tc = bt2_trace_class._TraceClass._create_from_ptr(tc_ptr)
         tc._assigns_automatic_stream_class_id = assigns_automatic_stream_class_id
 
+        if user_attributes is not None:
+            tc._user_attributes = user_attributes
+
         return tc
 
     def _create_clock_class(
         self,
         frequency=None,
         name=None,
+        user_attributes=None,
         description=None,
         precision=None,
         offset=None,
@@ -742,6 +748,9 @@ class _UserComponent(metaclass=_UserComponentType):
         if name is not None:
             cc._name = name
 
+        if user_attributes is not None:
+            cc._user_attributes = user_attributes
+
         if description is not None:
             cc._description = description
 
@@ -890,12 +899,11 @@ class _UserSinkComponent(_UserComponent, _SinkComponent):
     def _create_input_port_message_iterator(self, input_port):
         utils._check_type(input_port, bt2_port._UserComponentInputPort)
 
-        msg_iter_ptr = native_bt.self_component_port_input_message_iterator_create_from_sink_component(
+        status, msg_iter_ptr = native_bt.bt2_self_component_port_input_message_iterator_create_from_sink_component(
             self._bt_ptr, input_port._ptr
         )
-
-        if msg_iter_ptr is None:
-            raise bt2._MemoryError('cannot create message iterator object')
+        utils._handle_func_status(status, 'cannot create message iterator object')
+        assert msg_iter_ptr is not None
 
         return bt2_message_iterator._UserComponentInputPortMessageIterator(msg_iter_ptr)