[Quickfix-users] in-session logon (for CME iLink)

[QM <eqm...@nw...>]

Hello

Has anyone here implemented in-session logon for CME iLink?  Are you able
to do it in your app code, or did you have to modify QuickFIX itself?

I'm pretty close to doing it in-app but I've hit an issue:

- per the iLink docs, I send the test request, wait for the heartbeat
response, and send the logon message (141-ResetSeqNumFlag=Y,
34-SequenceNum=1)

- also per the iLink docs, CME responds with a logon confirmation that sets
141-ResetSeqNumFlag=Y and 34-SequenceNum=1

For that second step, QuickFIX is expecting CME's sequence number to be 2
instead of 1.  That triggers a disconnect, and the logout message contains
the reason: "MsgSeqNum too low, expecting 2 but received 1."

Is there a way to stop QuickFIX from disconnecting at this point, and/or
force the expected sequence number to 1?

(I've tried calling Session::setNextTargetMsgSeqNum( 1 ) after sending out
the logon message, but to no avail.  I also intercepted the outgoing logout
message in toAdmin() and rewrote it as a heartbeat, but QuickFIX
disconnects anyhow.)

Thanks.