[Qt-interest] QTcpServer timeout ?

[Atlant Schmidt]

Stephen:

> If it's the kind of app. that has to survive in such an environment, I
> would recommend that they implement an application level keepalive
> though - that won't be dependent upon the vagaries of the underlying
> OS or local sys admin (who may have changed the kernel level TCP
> keepalive settings without your knowing it).

  I agree completely.

                            Atlant

________________________________
From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Stephen Collyer
Sent: Wednesday, July 21, 2010 9:26 AM
Cc: QtInterest
Subject: Re: [Qt-interest] QTcpServer timeout ?

On 21 July 2010 14:07, Atlant Schmidt <aschmidt at dekaresearch.com<mailto:aschmidt at dekaresearch.com>> wrote:

Stephen:
  You are correct that generic TCP connections don't "inherently" time out.
  But many, many TCP connections in the real world (in the situations I
  mentioned such as firewalls, public carriers, and the like) absolutely
  DO timeout.
Yes, that's a good point - a firewall could be closing a connection.
If it's the kind of app. that has to survive in such an environment, I
would recommend that they implement an application level keepalive
though - that won't be dependent upon the vagaries of the underlying
OS or local sys admin (who may have changed the kernel level TCP
keepalive settings without your knowing it).

--
Stephen Collyer


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