[Kamailio-Users] htable - grabbing a value randomly

[Daniel-Constantin Mierla]

Hello,

On 03/11/2009 06:21 PM, Mik Cheez wrote:
> I'm hoping to store several gateway IP's in a hash table using HTable, 
> then grab one of them randomly.  Does anyone have a recommendation as to 
> how this can be done, or perhaps a better way to do it?  I chose HTable 
> because a) I want to reload the values every x minutes and b) I'm using 
> it for other purposes.
>   
add in htable several keys:
- "gateway[x]"  - where x is 0 to the number of gateways
- "gateway::size" -  where to store the number of gateways

Then use the cfgutils module and get your gateway with:
$var(x) = $RANDOM % $sht(gateway::size);
$var(gwip) = $sht(gateway[$var(x)]);

FYI - although you may know - dispatcher has an algorithm for random 
selection of destination.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
http://www.asipto.com