can you block a thread in GHC by its threadID?

[Bernard James POPE]

On Tue, Jun 22, 2004 at 10:37:54AM +0200, Volker Stolz wrote:
> In local.glasgow-haskell-users, you wrote:
> > Ideally I'd like this function:
> >    blockThread :: ThreadId -> IO ()
> >    unBlockThread :: ThreadId -> IO ()
> 
> I should have some bit-rotted patches here for
> freezeThread :: ThreadId -> IO ()
> thawThread   :: ThreadId -> IO () and a new PrimOp which
> allows you to set the next thread to run (at a first glance, at least
> I could find the patch for the latter).

If you could find them that would be great.

Cheers,
Bernie.