Method register

Lib/selectors.py:340–349

(self, fileobj, events, data=None)

        self._selector = self._selector_cls()

    def register(self, fileobj, events, data=None):
        key = super().register(fileobj, events, data)
        poller_events = ((events & EVENT_READ and self._EVENT_READ)
                         | (events & EVENT_WRITE and self._EVENT_WRITE) )
        try:
            self._selector.register(key.fd, poller_events)
        except:
            super().unregister(fileobj)
            raise
        return key

    def unregister(self, fileobj):
        key = super().unregister(fileobj)