[SR-Users] avp_delete problem [kamailio 1.5]

[Marius Zbihlei]

On 02/22/2012 09:45 AM, Sven Knoblich wrote:
> Hello all,
> i am currently confused by using the avpops function avp_delete. When i
> run avp_delete without the flag-value \g only the last value will be
> unset (like an undo). Is this the wanted behaviour?
Hello Sven,

After looking thru the code it seems that this is the wanted behaviour 
(something like sed with /g switch) even in 3.x (master).

 From the fixup function of avp_delete :
<code>
                 case 'g':
                 case 'G':
                     ap->ops|=AVPOPS_FLAG_ALL;
</code>

This flag is sent as the /all /parameter in destroy_avps in usr_avp.c 
method. (The avp's are inserted in memory in reversed order so it's a 
Last In First Out type structure)

Cheers
Marius
> EXAMPLE:
>
> $avp(test) = "test"
> if( $avp(test)){xlog("L_NOTICE","result1:$avp(test)\n");}
>
> $avp(test) = "nooo";
> if( $avp(test)){xlog("L_NOTICE","result2:$avp(test)\n");}
>
> avp_delete("$avp(test)");
> if( $avp(test)){xlog("L_NOTICE","result3:$avp(test)\n");}
>
>
> RESULT:
>
> result1:test
> result2:nooo
> result3:test
>
> Could anybody helps me to understand that?
>
> thanks in advance,
> Sven
>
>
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-- 
Zbihlei Marius

Head of
Linux Development Services Romania

1&1 Internet Development srl    Tel KA: 754-9152
Str Mircea Eliade 18            Tel RO: +40-31-223-9152
Sect 1, Bucuresti               mailto: marius.zbihlei at 1and1.ro
71295, Romania

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