Method _handle_event

tornado/platform/asyncio.py:650–659

(
        self,
        fd: _FileDescriptorLike,
        cb_map: Dict[_FileDescriptorLike, Callable],
    )

        self._start_select()

    def _handle_event(
        self,
        fd: _FileDescriptorLike,
        cb_map: Dict[_FileDescriptorLike, Callable],
    ) -> None:
        try:
            callback = cb_map[fd]
        except KeyError:
            return
        callback()

    def add_reader(
        self, fd: _FileDescriptorLike, callback: Callable[..., None], *args: Any