[SR-Users] loop through variables

[Daniel-Constantin Mierla]

Hello,

On 11/2/10 3:02 PM, Bernhard Suttner wrote:
> Hi,
>
> yeah, that looks like a good solution. But I assume that there should be the similar way to use the shm or pseudo variables as a array. Maybe someone else does know more about this way?

the script variables that can hold arrays are AVPs. You can emulate 
arrays with htable by constructing an array-like key - what Juha 
suggested. I haven't checked/used the memcache module.

What Alex provided for assignment is not working exactly that way, 
because an assignment to an AVP always adds at the first position like a 
stack (the index is not relevant for avp in the left side of assignment 
unless it is '*' and assigned value is null - meaning delete all avps 
with that name).

However, as I understand you want to execute some actions based on 
source IP. Look at permissions module, with 3.1 you can assign tag value 
per ip/network address. This value is returned in config upon matching 
and based on it you can do specific operations.

There are other modules that could be used to match based on ip address, 
without a need to do a loop in config.

Cheers,
Daniel

> Best regards,
> Bernhard
>
> -----Ursprüngliche Nachricht-----
> Von: sr-users-bounces at lists.sip-router.org [mailto:sr-users-bounces at lists.sip-router.org] Im Auftrag von Alex Balashov
> Gesendet: Dienstag, 2. November 2010 14:41
> An: sr-users at lists.sip-router.org
> Betreff: Re: [SR-Users] loop through variables
>
> On 11/02/2010 09:35 AM, Sergey Okhapkin wrote:
>
>> htable module should do the trick to you.
>>
>> On Tuesday 02 November 2010, Bernhard Suttner wrote:
>>> Hi,
>>>
>>> I want something like that:
>>>
>>> # define some router to use later in the script (global section)
>>> Mod_param(router(1), "10.10.10.1")
>>> mod_param(router(2), "10.10.10.2")
>>> mod_param(router(3), "10.10.10.3")
>>> Mod_param(router_count, "3")
>>>
>>> within the different routes I want to loop through the routers like that:
>>>
>>> $var(i)
>>> while($(var(i)<   $var(router_count)) {
>>>    if ($var(router($var(i)) == src_ip") {
>>>      .. do something
>>>     }
>>> }
> Another option is to push the constants into AVP arrays at startup (I
> assume there is some sort of init route at this point, otherwise a
> module init event-route):
>
>      $(avp(s:routers)[0]) = "10.10.10.1";
>      $(avp(s:routers)[1]) = "10.10.10.2";
>      $(avp(s:routers)[2]) = "10.10.10.3";
>
> You can then iterate through them, using is_avp_set() to check if
> something exists at the current index/array subscript:
>
>      $var(i) = 0;
>
>      while(is_avp_set("$(avp(s:routers)[$var(i)])")) {
>         xlog("L_INFO", "Router is: $(avp(s:routers)[$var(i)])\n";
>         $var(i) = $var(i) + 1;
>      }
>

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