Add request -> response time sequence diagram.

title Kinetic C message handling, full request response cycle

User -> Client: KineticClient_Put (command)

Client -> Client: KineticOperation_SendRequest

note over Client: lock

Client -> Client: Reserve sequence ID

Client -> Client: Pack command & message

Client -> Client: Send request

note over Client: unlock

Client -> Client: pack request

activate Client

Client -> Listener: hold responses for <FD, SEQ_ID>

activate Listener

Client -> Drive: send request

activate Drive

Client -> Listener: expect response for <FD, SEQ_ID>

Listener -> Client: acknowledgement with backpressure

parallel {

    Client -> Client: backpressure

    deactivate Client

    Listener -> Listener: wait

}

Drive -> Listener: response

deactivate Drive

Listener -> Listener: unpack response

Listener -> Threadpool: Transfer callback with result code

activate Threadpool

deactivate Listener

Threadpool -->> Client: callback(status)

deactivate Threadpool

Client -> User: status