[Quickfix-developers] Re: Intermittent disconnect problem

[Michael H. <mh...@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.

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In the following method - void SocketInitiator::onData( SocketConnector&
connector, int s )

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The current code:

while( pSocketConnection->read( connector ) )

{}

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My modified version:

while( pSocketConnection->read( connector ) )=20

{

  // Modified 11-26-03 by M. Holm. Because heartbeats are being starved!

  i->second->onTimeout();

}

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This will ensure that heartbeats will be sent when necessary according
to the SFE spec.

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You might be having a similar problem to the one I encountered.

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Hope this helps.

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Michael Holm

Liquid Capital Markets Ltd
11 Old Jewry
London EC2R 8DU
Tel:020 7726 3028

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