RFR: 8080879: Remove AbstractGangTask::set_for_termination

Stefan Karlsson stefan.karlsson at oracle.com
Mon May 25 09:00:14 UTC 2015


On 25/05/15 10:44, Kim Barrett wrote:
> On May 22, 2015, at 10:19 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
>> Hi all,
>>
>> AbstractGangTask::set_for_termination(uint active_workers) is a virtual function that sub-classes can override to run setup code before the task is started. The active_workers parameter tells the task how many workers are going to execute the task.
>>
>> Only a few tasks use this infrastructure and most tasks run the setup code in the constructor or before the task is constructed. There is no place where we construct a FlexibleGangTask task, change the number of active workers, and then start the task. The tasks are always started near the construction site. So, I propose that we get rid of AbstractGangTask::set_for_termination to shrink the AbstractGangTask API.
>>
>> I didn't want to change how the CMS worker threads are started, so I moved AbstractGangTask::set_for_termination to YieldingFlexibleGangTask.
>>
>> http://cr.openjdk.java.net/~stefank/8080879/webrev.00/
>> https://bugs.openjdk.java.net/browse/JDK-8080879
>>
>> Thanks,
>> StefanK
> Looks good.

Thanks, Kim.

StefanK

>



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