asyncfile.py 文件源码

def close(self):
            """Close file descriptor.
            """
            if self._fileno:
                self._notifier.unregister(self)
                if self._fd:
                    self._fd.close()
                self._fd = self._fileno = None
                self._read_task = self._write_task = None
                self._read_fn = self._write_fn = None
                self._buflist = []