31   friend class ZList<ZMemory>;
  32 
  33 private:
  34   uintptr_t          _start;
  35   uintptr_t          _end;
  36   ZListNode<ZMemory> _node;
  37 
  38 public:
  39   ZMemory(uintptr_t start, size_t size);
  40 
  41   uintptr_t start() const;
  42   uintptr_t end() const;
  43   size_t size() const;
  44 
  45   void shrink_from_front(size_t size);
  46   void shrink_from_back(size_t size);
  47   void grow_from_front(size_t size);
  48   void grow_from_back(size_t size);
  49 };
  50 
  51 class ZMemoryManager VALUE_OBJ_CLASS_SPEC {
  52 private:
  53   ZList<ZMemory> _freelist;
  54 
  55 public:
  56   uintptr_t alloc_from_front(size_t size);
  57   uintptr_t alloc_from_back(size_t size);
  58   void free(uintptr_t start, size_t size);
  59 };
  60 
  61 #endif // SHARE_GC_Z_ZMEMORY_HPP

  31   friend class ZList<ZMemory>;
  32 
  33 private:
  34   uintptr_t          _start;
  35   uintptr_t          _end;
  36   ZListNode<ZMemory> _node;
  37 
  38 public:
  39   ZMemory(uintptr_t start, size_t size);
  40 
  41   uintptr_t start() const;
  42   uintptr_t end() const;
  43   size_t size() const;
  44 
  45   void shrink_from_front(size_t size);
  46   void shrink_from_back(size_t size);
  47   void grow_from_front(size_t size);
  48   void grow_from_back(size_t size);
  49 };
  50 
  51 class ZMemoryManager {
  52 private:
  53   ZList<ZMemory> _freelist;
  54 
  55 public:
  56   uintptr_t alloc_from_front(size_t size);
  57   uintptr_t alloc_from_back(size_t size);
  58   void free(uintptr_t start, size_t size);
  59 };
  60 
  61 #endif // SHARE_GC_Z_ZMEMORY_HPP