Subject: Re: [linux-audio-dev] lock-free ring buffer code
From: Paul Davis (paul_AT_linuxaudiosystems.com)
Date: Fri Apr 04 2003 - 23:41:23 EEST
>OK, I haven't been programming much lately, but when did I miss atomic_t
>becoming a part of any C standard?
its not. its a type derived from the kernel headers, which also
defines some basic operations on them. for most common architectures,
they resolve to integer read/write.
>Also, several people have referred to the atomicity of int/pointer
>read/write. This is news to me - can someone point me at the spec for this?
its an architecture-specific issue. its not true on SPARCs and on some
NUMA systems. it has nothing to do with a language per se.
--p
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