Re: [AD] demo of new timer API (unix only)

[Peter Wang <tjaden@xxxxxxxxxx>]

Evert Glebbeek wrote:

> > Firstly, it looks like people are happy with the evolution idea (thank 
> > Chris for that), with a few reservations about compatibility.  It's 
> > pretty exciting.  I guess we should wait until those guys in Europe come 
> > back from vacation before discussing how to proceed.
> >    
>
> I'm back at any rate. I think Elias and Angelo said they'd be away until 
> the end of the month though...
>  

Greece, perhaps?

> > As long as you've got 
> > threads, you can do pretty much anything.  DOS will probably have to be 
> > dropped. 
> >    
>
> There's a pthreads port for DJGPP (well, something that emulates the 
> pthreads API and functionality on DOS anyway). Not sure how well it works 
> though.
>  

If it's the pthreads package that I looked at in the past, it doesn't 
have preemptive threads, i.e. a thread only gets the CPU when another 
thread calls one of the pthread_* functions.  That's not very helpful 
and so the emulation either won't work or will be that much harder.

> I'd be in favour of requiring that as an additional download for DJGPP 
> rather than dropping DOS outright at this moment, also because it's 
> relatively little effort to get it to work if we use pthreads on *nix 
> anyway.
>  

Nah, it's not that simple :-)  It will only get harder with the input APIs.

> I'll see how your code runs here in a little while.
>  

Cheers.  I'll put up a newer version tonight as there's a thread-safety 
bug in the previous version I uploaded.  Silly Allegro calls 
install_int/remove_int from inside interrupt callbacks...

Peter