[sr-dev] module development
Peter Dunkley
peter.dunkley at crocodile-rcs.com
Tue May 1 12:05:51 CEST 2012
Hi,
All that mqueue does is queue a string.
When the request arrives I suspend it with t_suspend(). I then queue
the index and label returned from the suspend operation with mqueue.
When I pull an item off the mqueue I get the index and label of a
previously suspended transaction. I can use t_continue() to resume
processing of that SIP request.
So by having multiple queues, distributing across those queues according
to priority, and then pulling stuff off the queues in the right order
you can:
1) Receive requests on Kamailio in the order they arrive
2) But do any complex processing of them in an order based on whatever
(arbitrary) priorities you choose
Regards,
Peter
On Tue, 2012-05-01 at 15:30 +0530, Vineet Menon wrote:
> Peter,
> You are telling about this module mqueue module, right....
> if yes, then I understood the module incorrectly.
>
> I will get back after I understand it sufficiently....btw any other
> place to look for the info apart from the sources??
>
>
> Regards,
>
> Vineet Menon
>
>
>
>
>
> On 1 May 2012 15:21, Peter Dunkley <peter.dunkley at crocodile-rcs.com>
> wrote:
>
> As soon as messages are pulled from the receive buffer they
> are suspended and queued. So it is the minimum processing
> required to pull them into Kamailio. The let us say you have
> three queues. Priority 1 messages are queued with queue 1,
> priority 2 in queue 2, priority 3 in queue 3. Instead of
> dequeuing the queues in separate processes (as I do) you
> dequeue them in one process. You empty queue 1 first, then
> queue 2, then queue 3.
>
> Won't that do what you want?
>
>
>
> On Tue, 2012-05-01 at 14:55 +0530, Vineet Menon wrote:
>
> > @peter,
> > I don't get it?? Your module mqueue seems to be doing IPC.
> > What I want to do is prioratize messages that come to the
> > server according to their behaviour...
> > What I want is to have n queue :
> >
> >
> > _______________________________________________________
> > |
> > Prio 1 |
> > |
> > _______________________________________________________|
> > |
> > Prio 2 |
> > |
> > _______________________________________________________|
> > _______
> > ______ |
> > Prio 3 |
> > | OUT \
> > | IN \ |
> > _______________________________________________________|
> > |______ /
> > |______/
> > / /
> >
> > \ \
> > / /
> > |
> > Prio n |
> > |
> > _______________________________________________________|
> >
> > IN would come from the OS (messages which has been
> > identified as SIP messages)
> > OUT would go to the kamailio processing part. i.e. it would
> > now be actually reach the kamailio core.
> >
> > Regards,
> >
> > Vineet Menon
> >
> >
> >
> >
> > On 1 May 2012 14:23, Peter Dunkley
> > <peter.dunkley at crocodile-rcs.com> wrote:
> >
> > Hi,
> >
> > I have been using a configuration file based system
> > to share certain SIP requests across different
> > queues for handling by different processes. Such a
> > scheme could be adapted for prioritisation.
> >
> > I have posted several configuration fragments for
> > this on the list so you should find them if you look
> > in the archives. My email from 28 March (at around
> > 14:44) is probably the closest to what you are
> > wanting.
> >
> > Regards,
> >
> > Peter
> >
> >
> > On Tue, 2012-05-01 at 13:59 +0530, Vineet Menon
> > wrote:
> >
> > > Hi Olle,
> > >
> > > What I want to do is test a "hypothesis" for
> > > congestion control using prioritized scheduling of
> > > messages....
> > > But thx for that input regarding the newer message
> > > queue module....i'll look into it...
> > >
> > >
> > > Regards,
> > >
> > > Vineet Menon
> > >
> > >
> > >
> > >
> > > On 1 May 2012 13:18, Olle E. Johansson
> > > <oej at edvina.net> wrote:
> > >
> > >
> > > 1 maj 2012 kl. 09:39 skrev Vineet Menon:
> > >
> > > > Hi,
> > > >
> > > > I am new to kamailio module devel...
> > > > I want to test a new scheduling for SIP
> > > messages... Can i do that with kamailio
> > > modules? or I should go for something
> > > else? probably kamailio core??
> > >
> > >
> > > Can you elaborate a bit more? What do you
> > > mean with scheduling for SIP messages?
> > >
> > > We have a few new modules where you can
> > > queue messages for later processing and
> > > time their transmission. Check those
> > > first.
> > >
> > > /O
> > > _______________________________________________
> > > sr-dev mailing list
> > > sr-dev at lists.sip-router.org
> > > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
> > >
> > >
> > >
> > > _______________________________________________
> > > sr-dev mailing list
> > > sr-dev at lists.sip-router.org
> > > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
> >
> >
> >
> > --
> > Peter Dunkley
> > Technical Director
> > Crocodile RCS Ltd
> >
> > _______________________________________________
> > sr-dev mailing list
> > sr-dev at lists.sip-router.org
> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
> >
> >
> >
> >
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> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>
>
> --
> Peter Dunkley
> Technical Director
> Crocodile RCS Ltd
>
>
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>
>
>
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--
Peter Dunkley
Technical Director
Crocodile RCS Ltd
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