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From Tim Ellison <t.p.elli...@gmail.com>
Subject Re: svn commit: r960424 - /harmony/enhanced/java/trunk/classlib/modules/luni/src/main/java/java/io/File.java
Date Wed, 07 Jul 2010 09:14:06 GMT
On 07/Jul/2010 05:49, Regis wrote:
> On 2010-07-06 22:49, Jesse Wilson wrote:
>> On Sun, Jul 4, 2010 at 8:05 PM,<regisxu@apache.org>  wrote:
>>> File.counter could be accessed by multiple threads, so use
>>> AtomicInteger to
>>> make
>>> sure each thread using different int value to create temp file.
>> Is this a sufficient fix for the problem? The file system may be
>> shared by
>> multiple concurrently-executing VMs. Coordinating access to temp files
>> within a single VM doesn't prevent other processes from grabbing the same
>> file names.
>> A more robust solution might involve including the VM's process ID in the
>> filename. Or perhaps some kind of create-and-test protocol in a loop.
> At r961242, I used counter value generated first time to identify
> different VM instances, I think that's enough to avoid name conflicts.

Huh?  adding more local counters into the string in this VM isn't going
to help.

How does this code identify the VM instance?


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