[SR-Users] Is there any globle variable/flag mechanisminKamailio

[Derrick Ding]

Hi Alex,

If setting-value could only happen in initialization phase, and exported
function has only: pv_isset() and pv_unset, this doesn't work.

I need a function pv_set() to set the variable when condition is
matched.

Sincerely,
Derrick

-----Original Message-----
From: sr-users-bounces at lists.sip-router.org
[mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Alex
Balashov
Sent: Wednesday, April 13, 2011 12:03 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER)
-UsersMailing List
Cc: SIP Router - Kamailio (OpenSER) and SIP Express Router
(SER)-UsersMailing List
Subject: Re: [SR-Users] Is there any globle variable/flag
mechanisminKamailio

Derrick,

If it's truly global variables you want, have you tried shared memory
variables or htable?

--
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/

On Apr 13, 2011, at 11:58 AM, "Derrick Ding" <dding at aastra.com> wrote:

> Hi, Alex
> 
> I tried, it doesn't work.
> The real proxy is like a SIP-UA stateful entity. When A call B, then
> call C. it's different dialog. My aim is to let Kamailio send back 491
> to A, if A&B is in sendrecv state and A send INVITE to C with sendrecv
> before A hold B.
> 
> I cannot keep the state of A&B when process A&C. And record-route
> doesn't work either. It only works in a dialog.
> 
> I hope Kamailio could add global variable for user to define and use.
> 
> Sincerely,
> Derrick
> 
> -----Original Message-----
> From: sr-users-bounces at lists.sip-router.org
> [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Alex
> Balashov
> Sent: Tuesday, April 12, 2011 2:00 PM
> To: sr-users at lists.sip-router.org
> Subject: Re: [SR-Users] Is there any globle variable/flag mechanism
> inKamailio
> 
> On 04/12/2011 01:54 PM, Derrick Ding wrote:
> 
>> I wonder if there's any other mechanism that I can use to record the
>> state and can be used as flag.
> 
> That is because a stateful proxy is, by default, transaction-stateful.

> A "call" is a dialog, which consists of several transactions.  Proxies

> are not, by default, dialog-stateful.  It sounds like you're looking
for
> 
> something that can persist throughout the lifetime of a dialog.
> 
> Fortunately, Kamailio does have a 'dialog' module that adds this 
> functionality.  The doc page for the module is here:
> 
>   http://www.kamailio.org/docs/modules/3.1.x/modules_k/dialog.html
> 
> If you set a dialog to be tracked using the 'dialog' module, you can
use
> 
> so-called dialog flags:
> 
> 
>
http://www.kamailio.org/docs/modules/3.1.x/modules_k/dialog.html#id29657
> 48
> 
> 
>
http://www.kamailio.org/docs/modules/3.1.x/modules_k/dialog.html#id29658
> 08
> 
> These will be valid for the life of a dialog.
> 
> Another option--which also has the effect of being dialog-persistent, 
> but does not involve use of the dialog module--is to stow something in
a
> 
> Record-Route header value, which I assume your proxy is adding:
> 
> 
> http://www.kamailio.org/docs/modules/3.1.x/modules_k/rr.html#id2663290
> 
>
http://www.kamailio.org/docs/modules/3.1.x/modules_k/rr.html#check-route
> -param-id
> 
> -- Alex
> 
> -- 
> Alex Balashov - Principal
> Evariste Systems LLC
> 260 Peachtree Street NW
> Suite 2200
> Atlanta, GA 30303
> Tel: +1-678-954-0670
> Fax: +1-404-961-1892
> Web: http://www.evaristesys.com/
> 
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