Subject: Re: [boost] [lockfree] review
From: Gordon Woodhull (gordon_at_[hidden])
Date: 2011-07-30 10:14:36
On Jul 30, 2011, at 5:11 AM, Tim Blechmann <tim_at_[hidden]> wrote:
> compare_exchange actually updates old_tos, so there is no need to load it again
Oho, I get it. Instead of "if compare equal then exchange" it's more like "if compare equal then set else retrieve". Tricky.
> again, this is the difference between paper and actual implementation ;)
In this case, looks like the book is taking an abstraction penalty for exposition. Way better than cases where a paper will leave out necessary details because they're too messy.
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