Re: igc, macOS avoiding signals

[Gerd Möllmann]

Pip Cet <pipcet@protonmail.com> writes:

> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>
>> Gerd Möllmann <gerd.moellmann@gmail.com> writes:
>> Anyway, it definitely seems to be the case that MPS is _not_ running GCs
>> concurrently, unless it would do things that I find highly unlikely.
>>
>> I find that a bit, let's say, disappointing, TBH :-(.
>
> Well, I think that MPS is bring-your-own-thread concurrent.  I'm not
> sure the current MPS can usefully be concurrent, because of the thread
> suspension thing, but we can run it in another thread if we want to.
>
> (If it turns out that using a separate thread isn't an advantage, we
> should look at reducing the size of our roots (or protecting them)
> rather than giving up on the idea entirely.  As long as other threads
> freely move references to and from global roots, detecting unreachable
> objects is hard.)

(BTW, just remembering. MPS has root protection in it's API, but it's
not implemented.)