[OpenSIPS-Devel] presence aggregation

[Klaus Darilion]

Ahh - now I understand.
Thanks for the detailed description.

klaus

Anca Vamanu schrieb:
> Hi Klaus,
> 
> 
> The off_index parameter is used for presence event when a Publish with 
> expires 0 is received. In that case, the presence server must send a 
> Notify with a body containing basic status 'closed'. And it must keep 
> the same tuple id so that the client receiving the Notify knows it is 
> about that entity that went off line. So the solution is to take the old 
> body and modify it.
> The agg_nbody function is given as a parameter an array with all the 
> published bodies associated with the presentity. If one publication has 
> just been removed by a Publish with expires 0, then the previous body 
> for that publication will be in the array and its index will be given as 
> the off_index parameter. This parameter is used only when a Publish with 
> expires = 0 is received, in the rest of the cases this parameter is -1. 
> The aggregating function for presence looks at this parameter, and if 
> different that -1 it modifies the corresponding body before adding it. 
> The other bodies are added as they are.
> 
> regards,
> Anca
> 
> Klaus Darilion wrote:
>> Hi Anca!
>>
>> I wonder what is the meaning of the "off_index" parameter in the 
>> agg_nbody() function of the presence module?
>>
>> thanks
>> klaus
>>
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>