Thanks!
On Jul 12, 2011, at 12:18 PM, Daniel-Constantin Mierla wrote:
> Hello,
>
> On 7/12/11 8:06 PM, Spencer Thomason wrote:
>> Hello all,
>> Is it preferable to to a check before removing a header field or to simply
>> call remove_hf()? Are there any performance considerations?
>>
>> i.e.
>> if is_present_hf("X-Account-Code")
>> remove_hf("X-Account-Code");
>>
>> vs
>> remove_hf("X-Account-Code");
> if you just remove it in the IF condition, then the second is better.
>
> is_present_hf() searches the through the header lists and returns true at
> first match or false when all headers were tried without a match. remove_hf()
> searches as well through the list of headers and removes when the name
> matches, going up to the last header.
>
> With latest CPUs processing power, probably will be an unnoticeable
> performance difference, all the operations are in memory. But the check for
> the existence of that header is prety much useless in your case.
>
> Cheers,
> Daniel
>
> --
> Daniel-Constantin Mierla -- http://www.asipto.com
> Kamailio Advanced Training, Oct 10-13, Berlin: http://asipto.com/u/kat
> http://linkedin.com/in/miconda -- http://twitter.com/miconda
>
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