156     def select(self, timeout=None):  argument
158         ready or a timeout expires.
161         timeout -- if timeout > 0, this specifies the maximum wait time, in
163                    if timeout <= 0, the select() call won't block, and will
165                    if timeout is None, select() will block until a monitored
314         def _select(self, r, w, _, timeout=None):  argument
315             r, w, x = select.select(r, w, w, timeout)
320     def select(self, timeout=None):  argument
321         timeout = None if timeout is None else max(timeout, 0)
324             r, w, _ = self._select(self._readers, self._writers, [], timeout)
403     def select(self, timeout=None):  argument
405         # epoll() has a different signature and handling of timeout parameter.
406         if timeout is None:
407             timeout = None
408         elif timeout <= 0:
409             timeout = 0
412             # zero to wait *at least* timeout seconds.
413             timeout = math.ceil(timeout * 1e3)
416             fd_event_list = self._selector.poll(timeout)
452         def select(self, timeout=None):  argument
453             if timeout is None:
454                 timeout = -1
455             elif timeout <= 0:
456                 timeout = 0
459                 # from zero to wait *at least* timeout seconds.
460                 timeout = math.ceil(timeout * 1e3) * 1e-3
469                 fd_event_list = self._selector.poll(timeout, max_ev)
554         def select(self, timeout=None):  argument
555             timeout = None if timeout is None else max(timeout, 0)
556             # If max_ev is 0, kqueue will ignore the timeout. For consistent
562                 kev_list = self._selector.control(None, max_ev, timeout)