Thanks Alex, for the detailed explanation! :)

-----Original Message-----
From: sr-users [mailto:sr-users-boun...@lists.sip-router.org] On Behalf Of Alex 
Balashov
Sent: Friday, March 27, 2015 2:50 PM
To: sr-users@lists.sip-router.org
Subject: Re: [SR-Users] Reload htable

Grant,

On 03/27/2015 09:44 AM, Grant Bagdasarian wrote:

> I need to reload a htable from the database when a certain condition 
> is met inside my kamailio script.
>
> I found the htable.reload htable RPC command, but is it possible to 
> run this from within the script?

This command is not exposed within the route script. This is a fairly common 
situation with modules; some "meta" functionality like this that is available 
externally (via MI, RPC, etc.) is not available within the route script.

I think the best you can do is to set up an XHTTP_RPC interface:

http://kamailio.org/docs/modules/4.2.x/modules/xhttp.html
http://kamailio.org/docs/modules/4.2.x/modules/xhttp_rpc.html

and then use utils:http_query() to send a request to the RPC server itself.

That is probably the least blocking method involved. Another option is to use 
one of the exec* commands to call an external script that does this, of course:

http://kamailio.org/docs/modules/4.2.x/modules/exec.html

But in general, I think there should be a way to call MI/RPC commands from 
within route script generally. When there is not, we are always stuck in the 
predicament of needing to wrap up certain MI/RPC commands into module functions 
on demand. For example, I needed to examine the size of an 'mqueue' from within 
route script (this was only available as an MI/RPC command), so I committed 
this patch some time ago:

http://kamailio.org/docs/modules/4.2.x/modules/mqueue.html#mqueue.f.mq_size

This pattern will continue and add more bloat to modules, I expect. It would be 
sensible to try to genericise the functionality somehow, so that a wide 
category of informational and management commands can be transparently invoked 
both from route script and externally without having to do extra work.

-- Alex

--
Alex Balashov | Principal | Evariste Systems LLC
303 Perimeter Center North, Suite 300
Atlanta, GA 30346
United States

Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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