Groups > comp.programming.threads > #380

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

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From	Edek <edek.pienkowski@gmail.com>
Newsgroups	comp.programming.threads
Subject	Re: C++0x, 29.3 p13 "[...] atomic stores visible [...] within a reasonable amount of time."
Date	Sat, 02 Jul 2011 13:59:38 +0200
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>> 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?

The main question: Does it apply to release (and acquire/consume)?
(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
about the standard - > how to write code < - than how it is
on architecture X  - > how to implement a compiler <.

Edek

[1] I do have a notion of relativity of now. I mean 'without any
costly delay'

Thread

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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