12 import select
156     def select(self, timeout=None):  member in BaseSelector
315             r, w, x = select.select(r, w, w, timeout)
318         _select = select.select
320     def select(self, timeout=None):  member in SelectSelector
403     def select(self, timeout=None):  member in _PollLikeSelector
432 if hasattr(select, 'poll'):
436         _selector_cls = select.poll
437         _EVENT_READ = select.POLLIN
438         _EVENT_WRITE = select.POLLOUT
441 if hasattr(select, 'epoll'):
445         _selector_cls = select.epoll
446         _EVENT_READ = select.EPOLLIN
447         _EVENT_WRITE = select.EPOLLOUT
452         def select(self, timeout=None):  member in EpollSelector
474                 if event & ~select.EPOLLIN:
476                 if event & ~select.EPOLLOUT:
489 if hasattr(select, 'devpoll'):
493         _selector_cls = select.devpoll
494         _EVENT_READ = select.POLLIN
495         _EVENT_WRITE = select.POLLOUT
505 if hasattr(select, 'kqueue'):
512             self._selector = select.kqueue()
521                     kev = select.kevent(key.fd, select.KQ_FILTER_READ,
522                                         select.KQ_EV_ADD)
525                     kev = select.kevent(key.fd, select.KQ_FILTER_WRITE,
526                                         select.KQ_EV_ADD)
536                 kev = select.kevent(key.fd, select.KQ_FILTER_READ,
537                                     select.KQ_EV_DELETE)
545                 kev = select.kevent(key.fd, select.KQ_FILTER_WRITE,
546                                     select.KQ_EV_DELETE)
554         def select(self, timeout=None):  member in KqueueSelector
569                 if flag == select.KQ_FILTER_READ:
571                 if flag == select.KQ_FILTER_WRITE:
588     selector = getattr(select, method, None)