Re: [ghc-steering-committee] Please review #673: Amendment to -jsem proposal #540

I think changes to the communication protocol *are* user-facing, in that any change to the protocol could implies a breaking change between all cabal releases in the future and all GHC releases in the past. It appears that is the case for the planned release of `semaphore-compat-2`, but I'm not 100% sure. In that light, I think it's good to discuss in a proposal to ensure we do not sign off lightly on such breaking changes, in particular for future versions of `semaphore-compat`. I will express support once compatibility and breaking changes are properly addressed. Sebastian ------ Originalnachricht ------ Von "Arnaud Spiwack" An "Simon Peyton Jones" Cc ghc-steering-committee@haskell.org Datum 24.09.2024 04:17:17 Betreff Re: [ghc-steering-committee] Please review #673: Amendment to -jsem proposal #540

Quite frankly, this is barely any user-facing change at all. Technically the semaphore could previously be shared by non-Haskell processes in ways the updated proposal doesn't allow. But it's not really something people do. So it all sounds reasonable.

On Mon, 23 Sept 2024 at 19:10, Simon Peyton Jones wrote:

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I'm happy to support too, but I would like to see presentational changes, so the final proposal makes sense when read in 5 yrs time.

Simon

On Sat, 21 Sept 2024 at 20:45, Malte Ott wrote:

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I agree.

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Hi all,

This seems like a sensible update to an accepted proposal.

I recommend we accept the amendment.

Eric

On Thu, Sep 19, 2024, at 19:00, Erik de Castro Lopo wrote:

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Hi all,

This is minor updates to correct an existing approved proposal.

I approve of these changes.

Erik

Adam Gundry wrote:

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Dear Committee,

Zubin Duggal proposes to amend proposal #540, which introduced

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parallelism control mechanism, so that it can avoid incompatibilities arising from different system C library implementations:

https://github.com/ghc-proposals/ghc-proposals/pull/673

https://github.com/wz1000/ghc-proposals/blob/new-jsem/proposals/0540-jsem.rs...

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I'd like to nominate Eric Seidel as the shepherd, since he was

On 2024-09-21 09:16, Eric Seidel wrote: the -jsem the

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shepherd of the original proposal.

Please guide us to a conclusion as outlined in https://github.com/ghc-proposals/ghc-proposals#committee-process

Cheers,

Adam

-- Adam Gundry, Haskell Consultant Well-Typed LLP, https://www.well-typed.com/

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