Dummy response
The server may occasionally send a “dummy” response.This is intended as a keep-alive feature, and is related to the DummyPacketInterval
server setting and/or isc_dpb_dummy_packet_interval
/isc_spb_dummy_packet_interval
connection setting.
Though Firebird normally uses SO_KEEPALIVE
(which is transparent to the client), clients must be able to handle the dummy response.The appropriate action is to read and ignore this response, and continue with the next response.
Int32
—p_operation
-
Operation code (
op_dummy
—71
)