> This might seem like a strange thing to do, but ...
>
> Presume I have a HaskellObj in some C code. I know that it is a thunk.
> I want to force it to _WHNF_ .
>
> Should/can I use rts_eval()?
>
> Any pointers on what this does (start new threads, cause
> garbage collection
> ...) would be appreciated. I can (and have) gone over the
> code but a more
> high level description would be helpful.
>
> Or perhaps there is another/better way.
>
> In essence I want a C version of seq (perhaps I can call to Haskell to
> perform a seq on it, but I think this might be overkill).
>
> A lightweight solution would be nice.
rts_eval() is the right way to do it, but it isn't particularly
lightweight: it creates a new thread to do the evaluation. I imagine
you could have a special-purpose thread that you keep around purely for
doing these evaluations, if efficiency is important to you.
Cheers,
Simon
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