[m-rev.] for review: thread-local mutables

[Peter Wang]

On 2007-01-10, Julien Fischer <juliensf at csse.unimelb.edu.au> wrote:
> 
> On Wed, 10 Jan 2007, Peter Wang wrote:
> >But it's a rather contrived situation,
> >as impure goals are not allowed in parallel conjuncts:
> >
> >   set_var("foo", !IO),
> >   (
> >	set_var("bar", !IO)
> >   &
> >	semipure get_var(Var)
> >   )
> 
> Are unique arguments, like the io.states, allowed in parallel 
> conjunctions anyway.

Yes.

> >Var could be "foo" or "bar" here, so nobody should be writing this code
> >anyway :-)
> 
> That's what purity promises are for.

?

> I guess it all boils down to what exactly `thread_local' means for
> mutables?  Does it mean that the mutable is local to the Mercury thread
> (i.e a thread explicitly created by a call to spawn/3)

Yes, that.

Peter

--------------------------------------------------------------------------
mercury-reviews mailing list
Post messages to:       mercury-reviews at csse.unimelb.edu.au
Administrative Queries: owner-mercury-reviews at csse.unimelb.edu.au
Subscriptions:          mercury-reviews-request at csse.unimelb.edu.au
--------------------------------------------------------------------------