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Re: [RFC] Implementing a simple mutex using simple locks and futex calls
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From: |
Richard Braun |
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Subject: |
Re: [RFC] Implementing a simple mutex using simple locks and futex calls |
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Date: |
Mon, 23 Sep 2013 11:44:01 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Sep 23, 2013 at 11:34:36AM +0200, Marin Ramesa wrote:
> On 23.09.2013 10:35:34, Richard Braun wrote:
> > Use the algorithms presented in "Futexes are tricky", I personally
> > won't accept anything less after 2010...
>
> I do, it's actually the version from 2011. I just added the lock to the
> mutex.
Then read it again, and carefully please. Your code should look like
"Mutex, Take 3". You seem to use take 1.
For an actual, readable implementation based on that, see [1], which
will show you how not naive the result should be.
--
Richard Braun
[1] http://git.sceen.net/rbraun/x15.git/blob/HEAD:/kern/mutex.h