Re: [Chicken-hackers] Argvector handling - maybe we could do better at that

[Peter Bex]

On Fri, Feb 19, 2016 at 01:51:09PM +0100, Jörg F. Wittenberger wrote:
> Am 19.02.2016 um 13:43 schrieb Peter Bex:
> >> One thing I did not yet try: maybe it's beneficial to have a version of
> >> C_kontinue which receives the current av, its size and the c argument to
> >> enable av-reuse without accessing those globals.
> > 
> > That won't work because the continuation will lose the vector's size.
> 
> Depends on what the alternave C_kontinue would do...

True, but I think that means it'll need to remember the size somewhere,
so you're probably back to globals again.

> >> Works till gc.  :-/
> > 
> > I think that's because it's copied onto the temp stack, and then copied
> > back onto the stack.  In the restart you'll need to prepend the av with
> > the size too.
> 
> YES.  But that's the question: where the hell is the restart?  I can't
> find it in the source.
> 
> If you could point me there, I'd be glad.

It's in CHICKEN_run around line 1495 in current master.  That's near the
end, in the if(!return_to_host) block.

> I'm *not* suggesting this to go anywhere!  5-10% are no huge gain and
> I'm still positive that we still can do a little better at least.

I'd be happy to hear if it gives good results, of course.

Cheers,
Peter

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