Re: [cp-patches] Thread.sleep() update

[Archie Cobbs]

Jeroen Frijters wrote:
>>On Thu, 2004-12-30 at 15:53 +0100, Jeroen Frijters wrote:
>>
>>>I don't like this "fix", in particular it breaks 
>>
>>compatibility with Sun.
>>
>>>On the JDK Thread.Sleep(0) is equivalent to a yield() (i.e. 
>>
>>it doesn't
>>
>>>throw an InterruptedException, even if an interrupt is pending).
>>
>>Interesting. That was not how I would interpret the behavour 
>>of sleep().
>>Are you sure this isn't a bug in that JDK implementation? It 
>>is kind of confusing that Thread.sleep() not always throws an 
>>InterruptedException when the Thread actually was interrupted.
>>Do you have any documentation that supports this?
> 
> 
> It isn't spec'ed this way. I actually think it is a Windows peculiarity
> that shines through.

I get the same behavior (no exception thrown) on FreeBSD and Linux
with JDK 1.4.2.

So Sun has a bug - either in their implementation or their documentation.

>>>Can't the broken VMs just fix their VMThread.sleep?
>>
>>If you say that sleep(0) should call yield() then we should 
>>probably do that instead of checking whether the Thread was
>>interrupted() to make the VMThread interface as simple as possible.
> 
> I would be in favor of letting the VM implementer decide such things.
> Thread.sleep(0) is by it's very nature a very platform specific thing to
> do.

That seems completely against the whole idea of Java semantic uniformity.
I disagree and think we should pick an "interpretation" and then stick with it.

-Archie

__________________________________________________________________________
Archie Cobbs      *        CTO, Awarix        *      http://www.awarix.com


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