[SR-Users] [sr-dev] RFC: updates to some core functions

Olle E. Johansson oej at edvina.net
Wed Dec 19 09:47:54 CET 2018

> On 19 Dec 2018, at 09:41, Daniel-Constantin Mierla <miconda at gmail.com> wrote:
> corex module was added to hold the functions that otherwise would be
> more or less "in the core", like those that were updated to support
> variables in the parameters, so this is the one to take the place of
> core in regard to exporting functions.
> tmx was added because tm module became very big, but also to try to
> separate a bit between transaction management code and some functions in
> top of it, in the way that tmx can work only with exported api by tm, so
> if one adds a function there doesn't get access to all internals of
> transaction and it is safer not to mess up things there. It is more or
> less like usrloc and registrar, usrloc does internal management of
> location records, registrar is the interface to configuration file (but
> there are other modules on top of usrloc, like pua_usrloc, dmq_usrloc, ...).
> kex is the one that collected some functions that use to be in kamailio
> (or better said openser at that time) but not in ser during 2005-2008
> and can be a module that be analyzed to see if can be merged into other
> modules. A big chunk of it used to be related to MI commands, but as we
> got rid of MI, might be easier now to split parts of it and relocate.
Ok, so removing kex is a good first step for the coming release.

It’s really hard explaining TMX and TM for new Kamailians.

/O :-)

> Cheers,
> Daniel
> On 19.12.18 09:25, Olle E. Johansson wrote:
>> Going back one step, are there any reasons to keep tmx, kex and corex modules at all?
>> At this point in the project I think many of the functions should be merged into 
>> the main modules and core. 
>> If I remember correctly, they exist because of a multi-brand history that is not
>> really the case any more.
>> /O
>> “The campaign to remove Kamailio extensions to Kamailio”
>>> On 19 Dec 2018, at 09:11, Henning Westerholt <hw at kamailio.org> wrote:
>>> Am Mittwoch, 19. Dezember 2018, 09:03:26 CET schrieb Sergey Safarov:
>>>> I prefer second way. Without any duplication.
>>>> For old configs branches 4.4, 5.0, 5.1 is always available.
>>> Hello,
>>> I would prefer also the second way, for the same reason: less duplicated 
>>> functions.
>>> Best regards,
>>> Henning
>>>> ср, 19 дек. 2018 г. в 10:50, Daniel-Constantin Mierla <miconda at gmail.com>:
>>>>> Hello,
>>>>> it was brought into discussions several times in the past about core
>>>>> functions not accepting variables in the parameters. I think it is time
>>>>> to update them during the 5.3 release development. For few of them, I
>>>>> added in the past some alternative function in the corex module (e.g.,
>>>>> force_send_socket() in core and set_send_socket() in corex module).
>>>>> So, I see two options:
>>>>> 1) add a function with similar name in corex module and same behaviour
>>>>> like the one from core
>>>>> 2) remove the function export from the core and export one with the same
>>>>> name from the corex module
>>>>> First one will ensure that configs using the functions right now keep
>>>>> working without any update.
>>>>> The second one will be better in long term from the point of
>>>>> documentation (no duplicated docs), but there might be few cases that
>>>>> would require updates in the config -- iirc, there are some functions
>>>>> that can get special tokens in the parameters (like forward(uri:host,
>>>>> uri:port)), they will get an equivalent with variables, but old config
>>>>> will not be compatible.
>>>>> Obviously the reason for this email is to ask the developers and users
>>>>> what would be the preferred way from own point of view.
>>>>> Cheers,
>>>>> Daniel
>>> -- 
>>> Henning Westerholt - https://skalatan.de/blog/
>>> Kamailio services - https://skalatan.de/services
>>> Kamailio security assessment - https://skalatan.de/de/assessment
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> -- 
> Daniel-Constantin Mierla -- www.asipto.com
> www.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com
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