src/share/vm/gc/parallel/gcTaskManager.hpp

rev 10651 : 6858051: Create GC worker threads dynamically
Reviewed-by:

*** 368,377 ****
--- 368,378 ----
    // Instance state.
    const uint                _workers;           // Number of workers.
    Monitor*                  _monitor;           // Notification of changes.
    SynchronizedGCTaskQueue*  _queue;             // Queue of tasks.
    GCTaskThread**            _thread;            // Array of worker threads.
+   uint                      _created_workers;   // Number of workers created.
    uint                      _active_workers;    // Number of active workers.
    uint                      _busy_workers;      // Number of busy workers.
    uint                      _blocking_worker;   // The worker that's blocking.
    bool*                     _resource_flag;     // Array of flag per threads.
    uint                      _delivered_tasks;   // Count of delivered tasks.
*** 379,388 ****
--- 380,391 ----
    uint                      _barriers;          // Count of barrier tasks.
    uint                      _emptied_queue;     // Times we emptied the queue.
    NoopGCTask*               _noop_task;         // The NoopGCTask instance.
    WaitHelper                _wait_helper;       // Used by inactive worker
    volatile uint             _idle_workers;      // Number of idled workers
+   uint*                     _processor_assignment; // Worker to cpu mappings. May
+                                                    // be used lazily
  public:
    // Factory create and destroy methods.
    static GCTaskManager* create(uint workers) {
      return new GCTaskManager(workers);
    }
*** 544,553 ****
--- 547,563 ----
    // Return true if all workers are currently active.
    bool all_workers_active() { return workers() == active_workers(); }
    uint active_workers() const {
      return _active_workers;
    }
+   uint created_workers() const {
+     return _created_workers;
+   }
+   // Create a GC worker and install into GCTaskManager
+   GCTaskThread* install_worker(uint worker_id);
+   // Add GC workers as needed.
+   bool add_workers(bool initializing);
  };
  
  //
  // Some exemplary GCTasks.
  //