def timestamp_end(self): """ End timestamp of this trace collection (nanoseconds since Epoch). """ pos_ptr = nbt._bt_iter_pos() pos_ptr.type = nbt.SEEK_LAST return self._timestamp_at_pos(pos_ptr)
def events(self): """ Generates the ordered :class:`Event` objects of all the opened traces contained in this trace collection. Due to limitations of the native Babeltrace API, only one event may be "alive" at a given time, i.e. a user **should never** store a copy of the events returned by this function for ulterior use. Users shall make sure to copy the information they need *from* an event before accessing the next one. """ begin_pos_ptr = nbt._bt_iter_pos() end_pos_ptr = nbt._bt_iter_pos() begin_pos_ptr.type = nbt.SEEK_BEGIN end_pos_ptr.type = nbt.SEEK_LAST for event in self._events(begin_pos_ptr, end_pos_ptr): yield event
def timestamp_begin(self): """ Begin timestamp of this trace collection (nanoseconds since Epoch). """ pos_ptr = nbt._bt_iter_pos() pos_ptr.type = nbt.SEEK_BEGIN return self._timestamp_at_pos(pos_ptr)
def events_timestamps(self, timestamp_begin, timestamp_end): """ Generates the ordered :class:`Event` objects of all the opened traces contained in this trace collection from *timestamp_begin* to *timestamp_end*. *timestamp_begin* and *timestamp_end* are given in nanoseconds since Epoch. See :attr:`events` for notes and limitations. """ begin_pos_ptr = nbt._bt_iter_pos() end_pos_ptr = nbt._bt_iter_pos() begin_pos_ptr.type = end_pos_ptr.type = nbt.SEEK_TIME begin_pos_ptr.u.seek_time = timestamp_begin end_pos_ptr.u.seek_time = timestamp_end for event in self._events(begin_pos_ptr, end_pos_ptr): yield event