[OpenSIPS-Users] LUA AVP issue?

[Răzvan Crainea]

Hi, James!

I am not sure what exactly is the problem, but I have an assumption. 
When the scenario was failing, where exactly was the $avp(jimmy) first 
declared? Inside the LUA script? Is it now first declared in OpenSIPS?
Is there any chance you could reproduce this issue again in full debugging?

Regards,

Razvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com

On 06/15/2012 12:30 AM, Gledhill, James wrote:
>
> I made a few more changes to my code and tested some more and now the 
> problem has gone away and I can no longer replicate it.  Perhaps it is 
> just something I do not fully understand about AVPs or opensips or the 
> lua implementation.   I was able to reproduce it 100% of the time for 
> a while, but now can not – strange!
>
> Any thoughts what happened in the original post?
>
> ------------------------------------------------------------------------
>
> *From:*users-bounces at lists.opensips.org 
> [mailto:users-bounces at lists.opensips.org] *On Behalf Of *Gledhill, James
> *Sent:* Thursday, June 14, 2012 3:54 PM
> *To:* users at lists.opensips.org
> *Subject:* [OpenSIPS-Users] LUA AVP issue?
>
> I am testing the Lua module in hopes of being able to use it more 
> later, but am coming across some strange things.
>
> Is this the best place to ask about it?  If not point me in the right 
> direction.
>
> AVP_set or AVP_get (in Lua module) seem to be getting data for/from 
> other AVP(s).
>
> I have included enough code from opensips.cfg and the lua file to be 
> able to replicate this problem.  It happens 100% of the time.
>
>  I am using
>
>   * opensips 1.8
>   * CentOS 5.8
>   * Lua 5.1.4
>
> =============
>
> Opensips.cfg (partial file)
>
> =============
>
> ## route[INVITE] is called for all invites – simple way to test J
>
> route[INVITE] {
>
>     xlog("In route_INVITE\n");
>
>     $avp(abcde) = "bean";
>
>     xlog("** ** avp(abcde) = $avp(abcde)\n");
>
>     if ( lua_exec("invite") ) {     ## call the invite method in lua file
>
> xlog("lua_exec returned TRUE\n");
>
>     } else {
>
> xlog("lua_exec returned not true\n");
>
>     }
>
>     xlog("** ** avp(jimmy) = $avp(jimmy)\n");    ## this avp is 
> reporting the value set in lua to another avp … WHY?
>
>     sl_send_reply("486", "I am not answering now!");
>
>     exit;
>
> }
>
> =============
>
> Lua (partial file)
>
> =============
>
> function invite(param)
>
> xlog("**********     --->  INVITE test from lua -- getpid =" .. 
> getpid() .. "\n");
>
>     -- AVP_get("jimmy") returns a null because it is not set - this is 
> expected.
>
> xlog("**********     --->  INVITE test from lua -- AVP_get(jimmy) =" 
> .. tostring(AVP_get("jimmy")) .. "\n");
>
> AVP_set("bingo","Old_mcDonald");
>
> xlog("**********     --->  INVITE test from lua -- AVP_get(bingo) =" 
> .. tostring(AVP_get("bingo")) .. "\n");
>
> xlog("**********     --->  INVITE test from lua -- AVP_get(abcde) =" 
> .. tostring(AVP_get("abcde")) .. "\n");
>
> xlog("**********     --->  INVITE test from lua -- AVP_get(fred) =" .. 
> tostring(AVP_get("fred")) .. "\n");
>
>     -- NOW … AVP_get("jimmy")  returns "Old_mcDonald" which is what 
> "bingo" is set to .. WHY IS avp(jimmy) returning this?
>
> xlog("**********     --->  INVITE test from lua -- AVP_get(jimmy) =" 
> .. tostring(AVP_get("jimmy")) .. "\n");
>
> xlog("**********     --->  INVITE test from lua -- filemtime =" .. 
> filemtime("/root/foo.dump") .. "\n");
>
>     return 0;
>
> end
>
> =============
>
> Output
>
> =============
>
> In route_INVITE
>
> ** ** avp(abcde) = bean
>
> siplua: **********     --->  INVITE test from lua -- getpid =6269
>
> siplua: **********     ---> INVITE test from lua -- AVP_get(jimmy) =nil
>
> siplua: **********     ---> INVITE test from lua -- AVP_get(bingo) 
> =Old_mcDonald
>
> siplua: **********     ---> INVITE test from lua -- AVP_get(abcde) =bean
>
> siplua: **********     ---> INVITE test from lua -- AVP_get(fred) =nil
>
> siplua: ********** --->  INVITE test from lua -- AVP_get(jimmy) 
> =Old_mcDonald   <<HOW/WHY is this getting set?>>
>
> siplua: **********     ---> INVITE test from lua -- filemtime =1277825218
>
> lua_exec returned TRUE
>
> ** ** avp(jimmy) = Old_mcDonald
>
>
>
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