src/hotspot/share/gc/shenandoah/shenandoahStrDedupQueue.hpp

rev 57734 : 8236880: Shenandoah: Move string dedup cleanup into concurrent phase

*** 31,41 ****
  
  template <uint buffer_size>
  class ShenandoahOopBuffer : public CHeapObj<mtGC> {
  private:
    oop   _buf[buffer_size];
!   uint  _index;
    ShenandoahOopBuffer<buffer_size>* _next;
  
  public:
    ShenandoahOopBuffer();
  
--- 31,41 ----
  
  template <uint buffer_size>
  class ShenandoahOopBuffer : public CHeapObj<mtGC> {
  private:
    oop           _buf[buffer_size];
!   volatile uint _index;
    ShenandoahOopBuffer<buffer_size>* _next;
  
  public:
    ShenandoahOopBuffer();
  
*** 51,60 ****
--- 51,64 ----
    void set_next(ShenandoahOopBuffer<buffer_size>* next);
    ShenandoahOopBuffer<buffer_size>* next() const;
  
    void unlink_or_oops_do(StringDedupUnlinkOrOopsDoClosure* cl);
    void oops_do(OopClosure* cl);
+ 
+ private:
+   uint index_acquire() const;
+   void set_index_release(uint index);
  };
  
  typedef ShenandoahOopBuffer<64> ShenandoahQueueBuffer;
  
  // Muti-producer and single consumer queue set