[SR-Users] Tips on picking random element from a list

[Bastian Triller]

http://www.kamailio.org/wiki/cookbooks/5.5.x/core#arithmetic_operations

$RANDOM mod 100

Should give you random ints between 0 and 99.


On Wed, May 4, 2022, 03:41 Joel Serrano <joel at textplus.com> wrote:

> I did, but I don't see how to limit the range:
>
> From the docs: Returns a random value from the [0 - 2^31) range.
>
> Is there a way to limit the range from 1-100 for example? Or maybe the way
> is to use $RANDOM and just rely on the first/last 2 digits (essentially a
> 00-99 range)?
>
>
> On Tue, May 3, 2022 at 10:40 AM Henning Westerholt <hw at gilawa.com> wrote:
>
>> Hello,
>>
>>
>>
>> what about just using this PV:
>> https://kamailio.org/docs/modules/5.5.x/modules/cfgutils.html#idm438
>>
>>
>>
>> Cheers,
>>
>>
>>
>> Henning
>>
>>
>>
>> --
>>
>> Henning Westerholt – https://skalatan.de/blog/
>>
>> Kamailio services – https://gilawa.com
>>
>>
>>
>> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *Joel
>> Serrano
>> *Sent:* Tuesday, May 3, 2022 6:20 PM
>> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
>> *Subject:* [SR-Users] Tips on picking random element from a list
>>
>>
>>
>> Hi Everyone,
>>
>>
>>
>> I have to implement a flow where outbound calls get their caller-id set
>> with a random number from a pool.
>>
>>
>>
>> I've been looking around and, as most of the time, there are tons of ways
>> to implement something like this... This is a simple implementation, the
>> number pool is fixed and will not change (so I could have it hard-coded in
>> the config if required).
>>
>>
>>
>> My initial approach was:
>>
>>
>>
>> 1- Try to keep it simple, with no dependencies, and all done in the
>> config script.
>>
>> 2- If #1 is "ugly", then I'd probably go with some inline code using
>> python/lua/etc
>>
>> 3- If #2 is "ugly", then I'd go with having the info in a DB and just run
>> a query
>>
>>
>>
>> I think #2 and #3 might be overkill for something so "simple" but I
>> haven't had to work too much with randomness in Kamailio, so any
>> tips/suggestions on where to store the number list and how to pick one
>> randomly would be awesome!
>>
>>
>>
>> Thanks!!
>>
>> Joel.
>>
>>
>>
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