mqtt-users team mailing list archive

[Mr Adam Rudd <adam.rudd@xxxxxxxxxxxxxxxx>]

I whipped up a script to do just this a little while ago. Shameless self plug for mqttjs!

https://gist.github.com/1832048

Am 08/06/2012 um 6:29 AM schrieb "Nicholas O'Leary" <nick.oleary@xxxxxxxxx>:

> Hi,
> 
> I've done a very quick write-up of the presence technique:
>   http://mqtt.org/wiki/doku.php/presence
> 
> Cheers,
> Nick
> 
> On 7 June 2012 09:02, andypiperuk@xxxxxxxxx <andypiperuk@xxxxxxxxx> wrote:
>> ... incidentally, this kind of protocol-specific question would be worth
>> asking in the MQTT Google
>> Group https://groups.google.com/forum/?fromgroups#!forum/mqtt
>> 
>> 
>> On Thu, Jun 7, 2012 at 9:01 AM, andypiperuk@xxxxxxxxx
>> <andypiperuk@xxxxxxxxx> wrote:
>>> 
>>> One way you could deal with presence would be to have an app publish a
>>> persistent message to some kind of presence topic when it starts, and have a
>>> LWT to publish a message and tell others that it had gone away. This is an
>>> area that we need to flesh out on the wiki at some point
>>> (http://mqtt.org/wiki/doku.php/techniques?s[]=presence)
>>> 
>>> I think the only way you'd be able to do the second thing would be to have
>>> a broker expose its internal counters, so that is bound to be
>>> implementation-specific. I don't know of a broker that provides that kind of
>>> information today.
>>> 
>>> On Wed, Jun 6, 2012 at 7:49 PM, Jesús Iglesias <osus@xxxxxxxxxxx> wrote:
>>>> 
>>>> Hi guys!
>>>> 
>>>> Is there any way to know if one client is conneted to the broker ata some
>>>> time?
>>>> 
>>>> One more, is there any way to know how many pending messages are for any
>>>> innactive client with persistent connection?
>>>> 
>>>> Thanks in advance,
>>>> Jesus
>>>> 
>>>> _______________________________________________
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>>> 
>>> 
>>> 
>>> --
>>> Andy Piper | Farnborough, Hampshire (UK)
>>> blog: http://andypiper.co.uk   |   skype: andypiperuk
>>> twitter: @andypiper  |  images: http://www.flickr.com/photos/andypiper
>> 
>> 
>> 
>> 
>> --
>> Andy Piper | Farnborough, Hampshire (UK)
>> blog: http://andypiper.co.uk   |   skype: andypiperuk
>> twitter: @andypiper  |  images: http://www.flickr.com/photos/andypiper
>> 
>> _______________________________________________
>> Mailing list: https://launchpad.net/~mqtt-users
>> Post to     : mqtt-users@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~mqtt-users
>> More help   : https://help.launchpad.net/ListHelp
>> 
> 
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