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From Tim Ellison <t.p.elli...@gmail.com>
Subject Re: [classlib][concurrent] Next IBM VME request
Date Fri, 15 Sep 2006 15:24:01 GMT
Just revisiting this thread -- and even I can't decipher what I wrote as
I ran out the door.

Let me try again.  Rather than put sun.misc.Unsafe into luni-kernel I
suggest that we have an o.a.h.kernel.vm.Risky[1] type containing just
the relevant subset of operations that we need for concurrent to work,
and put that subset into kernel.  Then we can implement Unsafe in terms
of those methods and work on convincing the concurrency group to
generalize their impl.

Once we have the Harmony subset defined I can look at getting them into
the IBM VME.

[1] or o.a.h.concurrent... package, or whatever we decide.


Tim Ellison wrote:
> Nathan Beyer wrote:
>> For those kind souls working that help release the IBM VME, I'd like to ask
>> for an implementation of the "sun.misc.Unsafe" interface for the next
>> release to facilitate the 'concurrent' modules continued development. As
>> such, the only portion of the Unsafe class that would need to be implemented
>> is what's defined in the 'luni-kernel' module. Additionally, the
>> 'concurrent' module has one other requirement and that's the implementation
>> of a native method in AtomicLong [1]. My initial goal it to be able to
>> enable all of the tests in the 'concurrent' module's build (all tests are
>> currently disabled).
> Hey Nathan -- I'm just about to set off for a few days, but briefly, I'd
> expect that we'd agree on an addition to the luni kernel for some
> o.a.h.FooBar type that has the required functionality, and create
> sun.misc in the suncompat component.
> Regards,
> Tim
>> Let me and the list know how we can help if there's anything needed. Thanks.
>> -Nathan
>> [1] private static native boolean VMSupportsCS8();


Tim Ellison (t.p.ellison@gmail.com)
IBM Java technology centre, UK.

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