Re: ns_tls? Was: [naviserver-devel] Re: [naviserver-commits] naviserver/nsd tclcache.c,1.2,1.3 tclcmds.c,1.34,1.35

[Vlad S. <vl...@cr...>]

I agree, the question is: remove it completely or make it better C/Tcl 
sharing API?

As for static tls key, i would create 2 public functions that return and 
set TLS data, this way key can still be private.

Also, we run cleanups on connection close, so we can cleanup this data 
as well.

Stephen Deasey wrote:
> An API that allows easy sharing between C and Tcl code is an
> interesting idea, e.g. a filter written in C storing data for a page
> written in Tcl.  But that's not what's been implemented.
> 
> As it stands, it's possible for C code to call down to Tcl and grab a
> global variable, it's impossible to get at the tls data as the tls key
> is a private variable in the nsd/tclinit.c file.
> 
> One bug with the current implementation is that virtual servers will
> stomp on each others data.
> 
> 
> 
> On 4/18/06, Vlad Seryakov <vl...@cr...> wrote:
>> Not you exactly but both of you and Stephen:-)))
>>
>> Global Tcl vars is more cleaner Tcl-only solution but i agree
>> interoperability between C and Tcl using ns-tls would be a good feature.
>> Internally ns_tls keeps Ns_set, so getting this from C would be just
>> gettting pointer to Ns_Set structure. It just requires more C-level
>> calls something like Ns_GetTclTls()/Ns_SetTclTcls()
>>
>> Zoran Vasiljevic wrote:
>>> On 18.04.2006, at 15:52, Vlad Seryakov wrote:
>>>
>>>> You convinced me that at this moment ns_tls is not appropriate, i will
>>>> remove it
>>> Oh?! How did I do that? Apart from giving a trivial
>>> alternative, I think that this interface is ok per-se.
>>> It allows "unified" access from Tcl and C code.
>>> That is, one should be able to do the "same" from C
>>> and Tcl. Isn't it so?
>>>
>>> Cheers
>>> Zoran
> 
> 
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-- 
Vlad Seryakov
571 262-8608 office
vl...@cr...
http://www.crystalballinc.com/vlad/