RFR: jsr166 jdk10 integration wave 6

Paul Sandoz paul.sandoz at oracle.com
Wed Nov 29 18:43:29 UTC 2017



> On 27 Nov 2017, at 20:19, Martin Buchholz <martinrb at google.com> wrote:
> 
> http://cr.openjdk.java.net/~martin/webrevs/openjdk10/jsr166-integration/overview.html <http://cr.openjdk.java.net/~martin/webrevs/openjdk10/jsr166-integration/overview.html>
> 
> Thanks to Dávid Karnok and Pavel Rappo for help with SubmissionPublisher.
> 
> 8191937: Lost interrupt in AbstractQueuedSynchronizer when tryAcquire methods throw
> 8187947: A race condition in SubmissionPublisher

Hard to review by eyeballing code but it looks good to me.


SubmissionPublisher
--

1004         // Order-sensitive field declarations
Is this still relevant with the use of @Contended on the demand/waiting fields of BufferedSubscription and periodic updates?


  81  * <p>A single SubmissionPublisher may be shared among multiple
  82  * sources. Actions in a source thread prior to publishing an item or
  83  * issuing a signal <a href="package-summary.html#MemoryVisibility">
  84  * <i>happen-before</i></a> actions subsequent to the corresponding
  85  * access by each subscriber. But reported estimates of lag and demand
  86  * are designed for use in monitoring, not for synchronization
  87  * control, and may reflect stale or inaccurate views of progress.
We probably need a CSR for this.

Is “corresponding access by each subscriber” referring to access of the published item by each subscriber?

Paul.

> 8191069: Miscellaneous changes imported from jsr166 CVS 2017-12



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