Re: [naviserver-devel] Losing interp alias

[Jeff R. <dv...@di...>]

Hi David,

This is a known deficiency - the introspection script that creates the 
tcl initialization script doesn't capture interp aliases.  I don't think 
it's difficult to add, just hasn't been done yet.

-J

David Osborne wrote:
> Hi,
>
> Wondering if you can help with a problem.
>
> I am attempting to preload the trf accelerated version of tcllib's
> ::md5::md5 in our naviserver config.
>
> As a simplified testcase to demonstrate what's happening I can do the
> following:
>
> - use a default configuration of naviserver, e.g. in /usr/local/ns
> - copy osborne-procs.tcl to/usr/local/ns/modules/tcl/osborne-procs.tcl
> where osborne-procs.tcl contains:
>
> package require Trf
> package require md5
>
> - use the sample config as distributed with naviserver
> /usr/local/ns/bin/nsd -c -u nsadmin -t /usr/local/ns/conf/nsd-config.tcl
>
> I get the following result:
>
> % ::md5::md5 -hex teststring
> invalid command name "Hex"
>
> This seems to be because the tcllib md5x.tcl code, checks for the Trf
> package, and if present sets up aninterp alias for the::md5::Hex
> command. And this seems to be getting lost somewhere.
>
> line 502:
> http://tcllib.cvs.sourceforge.net/viewvc/tcllib/tcllib/modules/md5/md5x.tcl?revision=1.19&view=markup
>
> If I subsequently add the alias manually everything is fine:
> % interp alias {} ::md5::Hex {} ::hex -mode encode --
> ::md5::Hex
> % ::md5::md5 -hex teststring
> D67C5CBF5B01C9F91932E3B8DEF5E5F8
>
> Can anyone shed any light as to what's going on here?
>
>
> # info patchlevel
> 8.5.8
>
> tcllib:
>    Installed: 1.12-dfsg-2
> tcl-trf:
>    Installed: 2.1.4-dfsg-2
>
> # /usr/local/ns/bin/nsd -V
> NaviServer/4.99.6
>     Tag:             16f91bafc825+ default tip
>     Built:           Aug 19 2013 at 11:26:14
>     Tcl version:     8.5
>     Platform:        linux
>
>
> --
> David
>