63   static const size_t        _max_cache_size;

    63   static const size_t        _max_cache_size;

    64 

    64 

    65   G1StringDedupWorkerQueue*  _queues;

    65   G1StringDedupWorkerQueue*  _queues;

    66   size_t                     _nqueues;

    66   size_t                     _nqueues;

    67   size_t                     _cursor;

    67   size_t                     _cursor;

    68   volatile bool              _empty;

    69   volatile bool              _empty;

    69 

    70 

    70   // Statistics counter, only used for logging.

    71   // Statistics counter, only used for logging.

    71   uintx                      _dropped;

    72   uintx                      _dropped;

    72 

    73 

    79   static void create();

    80   static void create();

    80 

    81 

    81   // Blocks and waits for the queue to become non-empty.

    82   // Blocks and waits for the queue to become non-empty.

    82   static void wait();

    83   static void wait();

    83 

    84 

    84   // Pushes a deduplication candidate onto a specific GC worker queue.

    88   // Pushes a deduplication candidate onto a specific GC worker queue.

    85   static void push(uint worker_id, oop java_string);

    89   static void push(uint worker_id, oop java_string);

    86 

    90 

    87   // Pops a deduplication candidate from any queue, returns NULL if

    91   // Pops a deduplication candidate from any queue, returns NULL if

    88   // all queues are empty.

    92   // all queues are empty.