Here are the data structures with brief descriptions:

C_jack_latency_range
C_jack_midi_event
C_jack_session_event
Cjack_position_t
Cjack_ringbuffer_data_t
Cjack_ringbuffer_t
Cjack_session_command_t
Cjack_transport_info_t
Cjackctl_parameter_value	Type for parameter value
Cport_pair_t