586             return await self.sock_sendfile(transp._sock, file, offset, count,
623     _sock = None  variable in _SelectorTransport
637         self._sock = sock
653         if self._sock is None:
703         if self._sock is not None:
705             self._sock.close()
738             self._sock.close()
739             self._sock = None
774         base_events._set_nodelay(self._sock)
831             nbytes = self._sock.recv_into(buf)
856             data = self._sock.recv(self.max_size)
918                 n = self._sock.send(data)
943             n = self._sock.send(self._buffer)
965                     self._sock.shutdown(socket.SHUT_WR)
972             self._sock.shutdown(socket.SHUT_WR)
1019             data, addr = self._sock.recvfrom(self.max_size)
1054                     self._sock.send(data)
1056                     self._sock.sendto(data, addr)
1079                     self._sock.send(data)
1081                     self._sock.sendto(data, addr)