[OpenSER-Users] PAI-Question

Daniel-Constantin Mierla miconda at gmail.com
Tue Mar 18 10:26:32 CET 2008


Hello,

On 03/17/08 20:04, henning Westerholt wrote:
>> is there a way to access two or more P-Asserted-Identity header field
>> directly with PVs? The only way I found to do is via
>> $(hdr(P-Asserted-Identity)[N]). I ask because of performance ...
>>     
>
> Hi Helmut,
>
> do you face performance problems with this access method? Sure, one could
> implement more PVs to access them.. But to have too many PVs would
> complicate the whole server. I don't think this method is that much
> slower..
>   
If one wants the N-th header of some type, won't be much improvement as 
it still needs to iterate to the Nth position, there are not direct 
hooks for such case.

Henning is right, the method should be fast enough, if it is the case of 
a known header, identification is done via integer comparison. If it is 
not, will be string comparison, and in this case there is very likely to 
have no direct hook, so optimization cannot be done.

Cheers,
Daniel

> Cheers,
>
> Henning
>
>
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