@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):
- # Forget about buffered messages, they won't be valid after seeking..
+ # Forget about buffered messages, they won't be valid after seeking.
self._current_msgs.clear()
self._at = 0
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)
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
#
# - If the iterator has a _user_can_seek_beginning attribute,
# read it and use that result.
- # - Otherwise, the presence or absence of a `_seek_beginning`
+ # - Otherwise, the presence or absence of a `_user_seek_beginning`
# method indicates whether the iterator can seek beginning.
if hasattr(self, '_user_can_seek_beginning'):
can_seek_beginning = self._user_can_seek_beginning
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_message_iterator(
+ status, msg_iter_ptr = native_bt.bt2_self_component_port_input_message_iterator_create_from_message_iterator(
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 _UserComponentInputPortMessageIterator(msg_iter_ptr)