55   uintptr_t alloc_object(size_t size, ZAllocationFlags flags);
  56 
  57   bool undo_alloc_large_object(ZPage* page);
  58   bool undo_alloc_medium_object(ZPage* page, uintptr_t addr, size_t size);
  59   bool undo_alloc_small_object_from_nonworker(ZPage* page, uintptr_t addr, size_t size);
  60   bool undo_alloc_small_object_from_worker(ZPage* page, uintptr_t addr, size_t size);
  61   bool undo_alloc_small_object(ZPage* page, uintptr_t addr, size_t size);
  62   bool undo_alloc_object(ZPage* page, uintptr_t addr, size_t size);
  63 
  64 public:
  65   ZObjectAllocator(uint nworkers);
  66 
  67   uintptr_t alloc_object(size_t size);
  68 
  69   uintptr_t alloc_object_for_relocation(size_t size);
  70   void undo_alloc_object_for_relocation(ZPage* page, uintptr_t addr, size_t size);
  71 
  72   size_t used() const;
  73   size_t remaining() const;
  74 
  75   void retire_tlabs();
  76   void remap_tlabs();
  77 };
  78 
  79 #endif // SHARE_GC_Z_ZOBJECTALLOCATOR_HPP

  55   uintptr_t alloc_object(size_t size, ZAllocationFlags flags);
  56 
  57   bool undo_alloc_large_object(ZPage* page);
  58   bool undo_alloc_medium_object(ZPage* page, uintptr_t addr, size_t size);
  59   bool undo_alloc_small_object_from_nonworker(ZPage* page, uintptr_t addr, size_t size);
  60   bool undo_alloc_small_object_from_worker(ZPage* page, uintptr_t addr, size_t size);
  61   bool undo_alloc_small_object(ZPage* page, uintptr_t addr, size_t size);
  62   bool undo_alloc_object(ZPage* page, uintptr_t addr, size_t size);
  63 
  64 public:
  65   ZObjectAllocator(uint nworkers);
  66 
  67   uintptr_t alloc_object(size_t size);
  68 
  69   uintptr_t alloc_object_for_relocation(size_t size);
  70   void undo_alloc_object_for_relocation(ZPage* page, uintptr_t addr, size_t size);
  71 
  72   size_t used() const;
  73   size_t remaining() const;
  74 
  75   void retire_pages();

  76 };
  77 
  78 #endif // SHARE_GC_Z_ZOBJECTALLOCATOR_HPP