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Re: Concurrency via isolated process/thread

From: Po Lu
Subject: Re: Concurrency via isolated process/thread
Date: Tue, 25 Jul 2023 17:37:12 +0800
User-agent: Gnus/5.13 (Gnus v5.13) 
Ihor Radchenko <yantar92@posteo.net> writes:

> I've seen a couple of volatile variables in the code.
> So, there is at least some fighting with GCC optimizations going on.

sig_atomic_t used within signal handlers must be volatile.  Others are
due to interactions between longjmp and automatic register allocation,
not due to store merging or CSE.
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