On 13/01/2016 23:17, Lioy, Marcello wrote:
> .If you have a session and are using the UDP transport (which should be the
> default in current releases) you should see the disconnect much sooner than
> 1800s. If you don't have a session it is trickier as there are a various
> timers in the system related to discovery.
that is what i thought but 15.09 takes 30 minutes. i managed to
reproduce this on an openwrt and a debian using off the shelf samples
from the tree.
> What exactly is the use case you wish to solve? There is a presence facility
> (not surprisingly called ping) and aditional functionality in the form of a
> helper library called the auto-pinger, that will detect if someone is gone.
> So the question is: how important is it to find out that a peer you care
> about is no longer there? Tradeoff is of course network traffic.
oh dear. i was scared some one would say that the solution is polling.
somehow i did expect that answer though.
thanks for the clarification !
John
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of John
> Crispin
> Sent: Wednesday, January 13, 2016 5:41 AM
> To: Steve Kinneberg
> Cc: [email protected]
> Subject: Re: [Allseen-core] detecting remote power down
>
>
>
> On 13/01/2016 14:14, John Crispin wrote:
>> Hi Steve,
>>
>> i am playing with the AboutClient sample in 15.09.
>> void SessionLost() only gets called on an ordered shut down of a
>> remote device. If I just disconnect the power of the remote device I
>> will have a stale session that wont even be flushed after TCP timeout.
>> this sort of defeats the purpose of said callback if it only gets
>> called on some occasions but not all.
>>
>> which API do i need to use instead to find out when a session goes stale ?
>>
>> John
>> _______________________________________________
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>> https://lists.allseenalliance.org/mailman/listinfo/allseen-core
>>
>
> Hi,
>
> ok, correction, alljoyn did notice after 1870 seconds. any idea how we can
> reduce this to something sane like 30s ?
>
> JOhn
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> https://lists.allseenalliance.org/mailman/listinfo/allseen-core
>
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