Re: [TCLCORE] TIP 233 inquiry, from long in the past

[Andreas K. <and...@gm...>]

> [Adding a cc: to tcl-core so that we don't have to repeat the discussion there.]

> On Tue, May 13, 2025 at 4:32 PM Andreas Kupries <and...@gm...>
> wrote:
 
> What I recall about the ticket was what I posted on tcl-core a few
> days ago.

My apologies for the repeated query, I missed that mail.

> I understood what virtual time was about - allowing a production
> script to run in simulated time rather than real time, while
> continuing to interact with real I/O devices.  (It's also used in
> some highly secure systems to avoid certain timing-dependent covert
> channels for data exfiltration.)
 
> I never knew the details of the intended application - you and Jeff were
> under an NDA with the customer, and were not at liberty to disclose them.

I do not even recall the NDA anymore.
I wonder if it may have run out after all this time.

Looped Jeff in now.

> My name was on the ticket, because I was the maintainer of the time system
> at the time.  I allowed it in primarily because it had no effect on a build
> that didn't use it.  The TIP was approved at a time when we were not
> extremely formal about the process. My reasoning was "it's something an
> ActiveState customer needs, and can't be done without surgery on the Core -
> and this particular surgery is relatively minimal, since the functionality
> is activated only by invoking an unusual API."
> 
> I never knew the identity of the customer, and as far as I know, nobody
> else has ever demanded virtualization of the clock.

Ok.

As I said in the meeting itself, I will not object to removing this if
it stands in the way monotonic.

-- 
Happy Tcling,
	Andreas Kupries <and...@gm...>
			<https://core.tcl-lang.org/akupries/>
			<https://akupries.tclers.tk/>
	Developer @	SUSE Software Solutions Germany GmbH
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