return bt2.message._MessageIteratorInactivityMessage(ptr)
- _unknown_clock_snapshot = bt2.message._StreamActivityMessageUnknownClockSnapshot()
- _infinite_clock_snapshot = bt2.message._StreamActivityMessageInfiniteClockSnapshot()
-
- @staticmethod
- def _bt_validate_stream_activity_message_default_clock_snapshot(stream, default_cs):
- isinst_infinite = isinstance(default_cs, bt2.message._StreamActivityMessageInfiniteClockSnapshot)
- isinst_unknown = isinstance(default_cs, bt2.message._StreamActivityMessageUnknownClockSnapshot)
-
- if utils._is_uint64(default_cs):
- pass
- elif isinst_infinite or isinst_unknown:
- if default_cs is not _UserMessageIterator._unknown_clock_snapshot and default_cs is not _UserMessageIterator._infinite_clock_snapshot:
- raise ValueError('unexpected value for default clock snapshot')
- else:
- raise TypeError("unexpected type '{}' for default clock snapshot".format(default_cs.__class__.__name__))
-
- if stream.cls.default_clock_class is None:
- if utils._is_uint64(default_cs):
- raise ValueError('stream activity messages in this stream cannot have a known default clock snapshot')
-
- def _create_stream_beginning_message(self, stream):
+ def _create_stream_beginning_message(self, stream, default_clock_snapshot=None):
utils._check_type(stream, bt2.stream._Stream)
ptr = native_bt.message_stream_beginning_create(self._bt_ptr, stream._ptr)
if ptr is None:
raise bt2.CreationError('cannot create stream beginning message object')
- return bt2.message._StreamBeginningMessage(ptr)
-
- def _create_stream_activity_beginning_message(self, stream,
- default_clock_snapshot=_unknown_clock_snapshot):
- utils._check_type(stream, bt2.stream._Stream)
- self._bt_validate_stream_activity_message_default_clock_snapshot(stream, default_clock_snapshot)
- ptr = native_bt.message_stream_activity_beginning_create(self._bt_ptr, stream._ptr)
-
- if ptr is None:
- raise bt2.CreationError(
- 'cannot create stream activity beginning message object')
-
- msg = bt2.message._StreamActivityBeginningMessage(ptr)
- msg._default_clock_snapshot = default_clock_snapshot
- return msg
+ msg = bt2.message._StreamBeginningMessage(ptr)
- def _create_stream_activity_end_message(self, stream,
- default_clock_snapshot=_unknown_clock_snapshot):
- utils._check_type(stream, bt2.stream._Stream)
- self._bt_validate_stream_activity_message_default_clock_snapshot(stream, default_clock_snapshot)
- ptr = native_bt.message_stream_activity_end_create(self._bt_ptr, stream._ptr)
-
- if ptr is None:
- raise bt2.CreationError(
- 'cannot create stream activity end message object')
+ if default_clock_snapshot is not None:
+ msg._default_clock_snapshot = default_clock_snapshot
- msg = bt2.message._StreamActivityEndMessage(ptr)
- msg._default_clock_snapshot = default_clock_snapshot
return msg
- def _create_stream_end_message(self, stream):
+ def _create_stream_end_message(self, stream, default_clock_snapshot=None):
utils._check_type(stream, bt2.stream._Stream)
ptr = native_bt.message_stream_end_create(self._bt_ptr, stream._ptr)
if ptr is None:
raise bt2.CreationError('cannot create stream end message object')
- return bt2.message._StreamEndMessage(ptr)
+ msg = bt2.message._StreamEndMessage(ptr)
+
+ if default_clock_snapshot is not None:
+ msg._default_clock_snapshot = default_clock_snapshot
+
+ return msg
def _create_packet_beginning_message(self, packet, default_clock_snapshot=None):
utils._check_type(packet, bt2.packet._Packet)