[cpp-threads] pthreads (was: RE: C++ Connections proposal)

[Alexander Terekhov]

On 4/29/05, Boehm, Hans <hans.boehm at hp.com> wrote:
> > -----Original Message-----
> > From: Alexander Terekhov
> >
> > Are you absolutely positively sure that all hardware on which
> > threaded C++ is supposed to run can provide required isolation for
> >
> >   char[2] a;
> >
> >   thread 1: a[0] = 1;
> >
> >   thread 2: a[1] = 2;
> >
> > without CAS/LL(LR)-SC (that would considerably slow things
> > down)?
> >
> No.  Which is why we need feedback.  But I know of none that can't.
> 
> I am positive that all hardware that can run Java 1.5/5 efficiently
> can do this.  I think the same holds for .NET.

Both can use isolated<char> instead of char everywhere (with
sizeof(isolated<char>) >= sizeof(char), see also RTJ's stuff 
for driver programming). That's not the case of C++ "native" 
(POSIX with its restriction on char size aside for a moment) 
because it is supposed to be "closer" to hardware, I believe.

regards,
alexander.