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From: Ihor Radchenko <yantar92@posteo.net>
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Subject: Re: Concurrency via isolated process/thread
Date: Thu, 06 Jul 2023 12:51:20 +0000
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Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
To: Po Lu <luangruo@yahoo.com>
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Po Lu <luangruo@yahoo.com> writes:

>>    LOCK_OBJECT (foo);
>>    LOCK_OBJECT (XCAR (foo));
> ...
> This is unnecessary.  Loads and stores of Lisp_Object values are cache
> coherent except on 32 bit systems --with-wide-int.  XCAR (foo) will
> always load one of the values previously written.

Do you mean that locking XCAR (foo) is unnecessary when foo is locked?

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>