Hello, adding a new class of variables with such behaviour is ok.
The $var(...) has already a variant $vn(...): - https://www.kamailio.org/wiki/cookbooks/devel/pseudovariables#vn_name_-_private_memory_variables_null $var() is initialized to 0, $vn() is to $null. iirc, there are flags to make the difference, I think that can be reused to add another type of private vars. Cheers, Daniel On 21/01/2017 09:20, Armen Babikyan wrote: > Hi Daniel, > > Thanks for your response. > > Any thoughts to my later comments? i.e. would you consider a patch > that resets these variables between top-level request_route > executions, either by $var(all) = $null, and/or modparam behavior, > and/or something else? > > BTW, is the current behavior done this way for a specific reason or > foreseen complication (i.e. one that I am not seeing at the moment)? > > Thanks! > > Armen > > On Wed, Jan 18, 2017 at 6:35 AM, Daniel-Constantin Mierla > <mico...@gmail.com <mailto:mico...@gmail.com>> wrote: > > Hello, > > preparing the release of v4.4.5 and digesting the sr-dev mailing > list activity, I noticed that this was not answered. > > The $var(x) type of variables is not reset, they persist over > execution of the routing blocks. Their values are stored in > private memory, so they are like global variables per each > kamailio process/worker. You have to reset them explicitly. > > Cheers, > Daniel > > > On 26/11/2016 00:19, Armen Babikyan wrote: >> Hello, >> >> I recall reading somewhere that all private variables (i.e. >> $var(foo)-style pvs) are reset/destroyed between request_route >> executions, but I have a suspicion this is not happening - either >> in some limited cases or perhaps in all cases. >> >> I suppose the most telling symptom is that I see no references to >> either destroy_vars() or reset_vars() functions that are defined >> in $kamailio/modules/pv/pv_svar.{c,h}. >> >> Is this behavior intentional? If so, I'll see what I can do >> about implementing a mechanism that manually resets (or >> destroys?) variables with a "$var(all) = $null;"-type of >> statement (similar to "$uac_req(all) = $null;"), or making a >> modparam setting that automatically does this. >> >> Thoughts welcome. Thanks! >> >> Armen >> >> >> >> _______________________________________________ >> sr-dev mailing list >> sr-dev@lists.sip-router.org <mailto:sr-dev@lists.sip-router.org> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev >> <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev> > > -- > Daniel-Constantin Mierla > www.twitter.com/miconda <http://www.twitter.com/miconda> -- > www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> > Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com > <http://www.kamailioworld.com> > -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
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