src/share/vm/gc/shared/workgroup.hpp

rev 11040 : 8155232: Augment Workgang to run task with a given number of threads
Summary: Add a method to run a WorkGang with a set number of threads.
Reviewed-by:
rev 11041 : [mq]: 8155232-stefank-review

*** 190,201 ****
    WorkGang(const char* name,
             uint workers,
             bool are_GC_task_threads,
             bool are_ConcurrentGC_threads);
  
!   // Run a task, returns when the task is done.
    virtual void run_task(AbstractGangTask* task);
  
  protected:
    virtual AbstractGangWorker* allocate_worker(uint which);
  };
  
--- 190,205 ----
    WorkGang(const char* name,
             uint workers,
             bool are_GC_task_threads,
             bool are_ConcurrentGC_threads);
  
!   // Run a task using the current active number of workers, returns when the task is done.
    virtual void run_task(AbstractGangTask* task);
+   // Run a task with the given number of workers, returns
+   // when the task is done. The number of workers must be at most the number of
+   // active workers.
+   void run_task(AbstractGangTask* task, uint num_workers);
  
  protected:
    virtual AbstractGangWorker* allocate_worker(uint which);
  };