Groups > comp.lang.java.programmer > #10936

Re: reading the JLS (17.4.5)

From	markspace <-@.>
Newsgroups	comp.lang.java.programmer
Subject	Re: reading the JLS (17.4.5)
Date	2011-12-21 12:09 -0800
Organization	A noiseless patient Spider
Message-ID	<jctee8$8d3$1@dont-email.me> (permalink)
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On 12/21/2011 12:37 AM, Andreas Leitgeb wrote:

> *iff* a *volatile* read gets to see the result of a *volatile*
> write, then doesn't that say anything about that the write must
> have "happened-before" the read?

Maybe you know this, but just in case:  yes, if a volatile like v1 is 
written and then read, ALL WRITES before the write of v1 are made 
visible, including the write of n1 which is not declared volatile.

Brian Goetz calls this "piggy-backing," where non-synchronized writes 
are made visible by piggy-backing on synchronized writes.

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reading the JLS (17.4.5) Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-12-18 12:10 +0000
  Re: reading the JLS (17.4.5) markspace <-@.> - 2011-12-18 06:57 -0800
    Re: reading the JLS (17.4.5) Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-12-20 17:54 +0000
      Re: reading the JLS (17.4.5) markspace <-@.> - 2011-12-20 10:50 -0800
        Re: reading the JLS (17.4.5) Patricia Shanahan <pats@acm.org> - 2011-12-20 12:12 -0800
          Re: reading the JLS (17.4.5) Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-12-21 08:54 +0000
            Re: reading the JLS (17.4.5) Patricia Shanahan <pats@acm.org> - 2011-12-21 10:56 -0800
              Re: reading the JLS (17.4.5) markspace <-@.> - 2011-12-21 12:02 -0800
  Re: reading the JLS (17.4.5) Patricia Shanahan <pats@acm.org> - 2011-12-18 09:21 -0800
    Re: reading the JLS (17.4.5) Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-12-20 18:35 +0000
      Re: reading the JLS (17.4.5) Lew <lewbloch@gmail.com> - 2011-12-20 19:08 -0800
        Re: reading the JLS (17.4.5) Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-12-21 08:37 +0000
          Re: reading the JLS (17.4.5) Patricia Shanahan <pats@acm.org> - 2011-12-21 10:46 -0800
          Re: reading the JLS (17.4.5) markspace <-@.> - 2011-12-21 12:09 -0800

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