RE: [Quickfix-developers] Re: Intermittent disconnect problem

[<or...@qu...>]

Hi Michael,

Thanks.  What version of QuickFIX are you using?  I ask because in 1.9.0
we introduced a similar fix for this.  Instead of calling onTimeout
after the read call, the session is calling next() after it processes
each message, which should have a similar effect.  Was your fix applied
to a 1.9.x version or an earlier one?

--oren

> -------- Original Message --------
> Subject: [Quickfix-developers] Re: Intermittent disconnect problem
> From: "Michael Holm" <mh...@li...>
> Date: Fri, February 04, 2005 4:42 am
> To: qui...@li...
> 
> I have seen a similar problem when connecting to SFE. They require that
> I follow the heartbeat procedure defined in the Fix spec. with one
> exception. At initial start-up time or at certain times throughout the
> day they may blast a huge amount of data to me which needs to be
> processed. The QuickFix engine gives priority to these messages and
> starves the heartbeat time slice. So if I am processing these messages
> for more then the agreed upon heartbeat period SFE will disconnect the
> session on their side and then QuickFix re-establishes the session and
> resyncs. And then they have to retransmit messages and as you can see I
> will encounter a never ending loop of shit. So I modified the following
> to code to stop QuickFix from starving the heartbeats.
> 
>  
> 
> In the following method - void SocketInitiator::onData( SocketConnector&
> connector, int s )
> 
>  
> 
> The current code:
> 
> while( pSocketConnection->read( connector ) )
> 
> {}
> 
>  
> 
> My modified version:
> 
> while( pSocketConnection->read( connector ) ) 
> 
> {
> 
>   // Modified 11-26-03 by M. Holm. Because heartbeats are being starved!
> 
>   i->second->onTimeout();
> 
> }
> 
>  
> 
> This will ensure that heartbeats will be sent when necessary according
> to the SFE spec.
> 
>  
> 
> You might be having a similar problem to the one I encountered.
> 
>  
> 
> Hope this helps.
> 
>  
> 
> Michael Holm
> 
> Liquid Capital Markets Ltd
> 11 Old Jewry
> London EC2R 8DU
> Tel:020 7726 3028