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Re: Patch for fields of `struct buffer'

From: Stefan Monnier
Subject: Re: Patch for fields of `struct buffer'
Date: Tue, 08 Feb 2011 16:10:21 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

> What I meant by this is that any proposed change has to come with a plan
> to upgrade the existing body of Emacs Lisp code, not all of which is
> included in Emacs.

> With locks it is probably possible to do this piecemeal.


> I don't know how to do it for CSP, and for STM the C side seems much too
> hard to contemplate.

The difficult part of STM is that in all likelihood, we wouldn't be able
to use a non-blocking implementation of transactions, since that
requires the code to be re-runnable, which boils down to being
something like "side-effect free" and we can't easily check/enforce it.


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