306 class ParNewGeneration: public DefNewGeneration {
307 friend class ParNewGenTask;
308 friend class ParNewRefProcTask;
309 friend class ParNewRefProcTaskExecutor;
310 friend class ParScanThreadStateSet;
311 friend class ParEvacuateFollowersClosure;
312
313 private:
314 // The per-worker-thread work queues
315 ObjToScanQueueSet* _task_queues;
316
317 // Per-worker-thread local overflow stacks
318 Stack<oop, mtGC>* _overflow_stacks;
319
320 // Desired size of survivor space plab's
321 PLABStats _plab_stats;
322
323 // A list of from-space images of to-be-scanned objects, threaded through
324 // klass-pointers (klass information already copied to the forwarded
325 // image.) Manipulated with CAS.
326 oop _overflow_list;
327 NOT_PRODUCT(ssize_t _num_par_pushes;)
328
329 // This closure is used by the reference processor to filter out
330 // references to live referent.
331 DefNewGeneration::IsAliveClosure _is_alive_closure;
332
333 // GC tracer that should be used during collection.
334 ParNewTracer _gc_tracer;
335
336 static oop real_forwardee_slow(oop obj);
337 static void waste_some_time();
338
339 void handle_promotion_failed(GenCollectedHeap* gch, ParScanThreadStateSet& thread_state_set);
340
341 protected:
342
343 bool _survivor_overflow;
344
345 bool survivor_overflow() { return _survivor_overflow; }
346 void set_survivor_overflow(bool v) { _survivor_overflow = v; }
|
306 class ParNewGeneration: public DefNewGeneration {
307 friend class ParNewGenTask;
308 friend class ParNewRefProcTask;
309 friend class ParNewRefProcTaskExecutor;
310 friend class ParScanThreadStateSet;
311 friend class ParEvacuateFollowersClosure;
312
313 private:
314 // The per-worker-thread work queues
315 ObjToScanQueueSet* _task_queues;
316
317 // Per-worker-thread local overflow stacks
318 Stack<oop, mtGC>* _overflow_stacks;
319
320 // Desired size of survivor space plab's
321 PLABStats _plab_stats;
322
323 // A list of from-space images of to-be-scanned objects, threaded through
324 // klass-pointers (klass information already copied to the forwarded
325 // image.) Manipulated with CAS.
326 volatile oop _overflow_list;
327 NOT_PRODUCT(ssize_t _num_par_pushes;)
328
329 // This closure is used by the reference processor to filter out
330 // references to live referent.
331 DefNewGeneration::IsAliveClosure _is_alive_closure;
332
333 // GC tracer that should be used during collection.
334 ParNewTracer _gc_tracer;
335
336 static oop real_forwardee_slow(oop obj);
337 static void waste_some_time();
338
339 void handle_promotion_failed(GenCollectedHeap* gch, ParScanThreadStateSet& thread_state_set);
340
341 protected:
342
343 bool _survivor_overflow;
344
345 bool survivor_overflow() { return _survivor_overflow; }
346 void set_survivor_overflow(bool v) { _survivor_overflow = v; }
|