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src/hotspot/share/gc/shared/memAllocator.hpp

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  66   // Raw memory allocation. This will try to do a TLAB allocation, and otherwise fall
  67   // back to calling CollectedHeap::mem_allocate().
  68   HeapWord* mem_allocate(Allocation& allocation) const;
  69 
  70   virtual MemRegion obj_memory_range(oop obj) const {
  71     return MemRegion((HeapWord*)obj, _word_size);
  72   }
  73 
  74 public:
  75   oop allocate() const;
  76   virtual oop initialize(HeapWord* mem) const = 0;
  77 };
  78 
  79 class ObjAllocator: public MemAllocator {
  80 public:
  81   ObjAllocator(Klass* klass, size_t word_size, Thread* thread = Thread::current())
  82     : MemAllocator(klass, word_size, thread) {}
  83   virtual oop initialize(HeapWord* mem) const;
  84 };
  85 








  86 class ObjArrayAllocator: public MemAllocator {
  87   const int  _length;
  88   const bool _do_zero;
  89 protected:
  90   virtual MemRegion obj_memory_range(oop obj) const;
  91 
  92 public:
  93   ObjArrayAllocator(Klass* klass, size_t word_size, int length, bool do_zero,
  94                     Thread* thread = Thread::current())
  95     : MemAllocator(klass, word_size, thread),
  96       _length(length),
  97       _do_zero(do_zero) {}
  98   virtual oop initialize(HeapWord* mem) const;
  99 };
 100 
 101 class ClassAllocator: public MemAllocator {
 102 public:
 103   ClassAllocator(Klass* klass, size_t word_size, Thread* thread = Thread::current())
 104     : MemAllocator(klass, word_size, thread) {}
 105   virtual oop initialize(HeapWord* mem) const;


  66   // Raw memory allocation. This will try to do a TLAB allocation, and otherwise fall
  67   // back to calling CollectedHeap::mem_allocate().
  68   HeapWord* mem_allocate(Allocation& allocation) const;
  69 
  70   virtual MemRegion obj_memory_range(oop obj) const {
  71     return MemRegion((HeapWord*)obj, _word_size);
  72   }
  73 
  74 public:
  75   oop allocate() const;
  76   virtual oop initialize(HeapWord* mem) const = 0;
  77 };
  78 
  79 class ObjAllocator: public MemAllocator {
  80 public:
  81   ObjAllocator(Klass* klass, size_t word_size, Thread* thread = Thread::current())
  82     : MemAllocator(klass, word_size, thread) {}
  83   virtual oop initialize(HeapWord* mem) const;
  84 };
  85 
  86 class ObjBufferAllocator: public MemAllocator {
  87 public:
  88   ObjBufferAllocator(Klass* klass, size_t word_size, Thread* thread = Thread::current())
  89     : MemAllocator(klass, word_size, thread) {}
  90   virtual oop initialize(HeapWord* mem) const;
  91 };
  92 
  93 
  94 class ObjArrayAllocator: public MemAllocator {
  95   const int  _length;
  96   const bool _do_zero;
  97 protected:
  98   virtual MemRegion obj_memory_range(oop obj) const;
  99 
 100 public:
 101   ObjArrayAllocator(Klass* klass, size_t word_size, int length, bool do_zero,
 102                     Thread* thread = Thread::current())
 103     : MemAllocator(klass, word_size, thread),
 104       _length(length),
 105       _do_zero(do_zero) {}
 106   virtual oop initialize(HeapWord* mem) const;
 107 };
 108 
 109 class ClassAllocator: public MemAllocator {
 110 public:
 111   ClassAllocator(Klass* klass, size_t word_size, Thread* thread = Thread::current())
 112     : MemAllocator(klass, word_size, thread) {}
 113   virtual oop initialize(HeapWord* mem) const;
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