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Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a reasonableamount of time."

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Edek wrote:
> 
> >> C++11 aside (the latest draft is not public and I have no idea what it
> >> says),
> >
> > C++0x, 29.3 p13. In draft n3242, the exact text is:
> > "Implementations should make atomic stores visible to atomic loads
> > within a reasonable amount of time."
> >
> 
> If you have the time, this point somehow interests me a lot.
> 
> To start: does it apply to relaxed only?

It applies to all stores.

> 
> The main question: Does it apply to release 

Yes.

> (and acquire/consume)?

There are no acquire/consume stores.

> (I am ignoring other orderings on purpose, as irrelevant for
> release/acquire, or consume, pair)
> 
> What I am basically wondering about, is how to release a lock
> (or anything else blocking another thread)
> in a way that assures it is done 'now' [1]; I care more

Simply do a store or RMW. The lock acquiring thread will perform an RMW
attempting to acquire the lock.

regards,
alexander.

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Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a   reasonable amount of time." Alexander Terekhov <terekhov@web.de> - 2011-06-27 20:55 +0200
  Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a reasonable amount of time." Joshua Maurice <joshuamaurice@gmail.com> - 2011-07-01 04:06 -0700
    Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a  reasonable amount of time." Alexander Terekhov <terekhov@web.de> - 2011-07-01 17:35 +0200
      Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a reasonable amount of time." Joshua Maurice <joshuamaurice@gmail.com> - 2011-07-01 15:23 -0700
        Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a  reasonable amount of time." Alexander Terekhov <terekhov@web.de> - 2011-07-02 10:18 +0200
          Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a reasonable amount of time." Joshua Maurice <joshuamaurice@gmail.com> - 2011-07-05 15:10 -0700
    Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a reasonable amount of time." Edek <edek.pienkowski@gmail.com> - 2011-07-02 13:59 +0200
      Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a  reasonableamount of time." Alexander Terekhov <terekhov@web.de> - 2011-07-05 10:12 +0200
        Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a  reasonableamount of time." Edek <edek.pienkowski@gmail.com> - 2011-07-05 11:36 +0200

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