src/hotspot/share/oops/weakHandle.hpp

rev 50373 : 8195097: Make it possible to process StringTable outside safepoint
Reviewed-by:

*** 37,52 ****
  // the GC cycle.  The runtime structures that reference the oop must test
  // if the value is NULL.  If it is NULL, it has been cleaned out by GC.
  // This is the vm version of jweak but has different GC lifetimes and policies,
  // depending on the type.
  
! enum WeakHandleType { vm_class_loader_data, vm_string };
  
  template <WeakHandleType T>
  class WeakHandle {
   public:
- 
   private:
    oop* _obj;
  
    WeakHandle(oop* w) : _obj(w) {}
    static OopStorage* get_storage();
--- 37,51 ----
  // the GC cycle.  The runtime structures that reference the oop must test
  // if the value is NULL.  If it is NULL, it has been cleaned out by GC.
  // This is the vm version of jweak but has different GC lifetimes and policies,
  // depending on the type.
  
! enum WeakHandleType { vm_class_loader_data, vm_string, vm_string_table_data };
  
  template <WeakHandleType T>
  class WeakHandle {
   public:
   private:
    oop* _obj;
  
    WeakHandle(oop* w) : _obj(w) {}
    static OopStorage* get_storage();
*** 57,66 ****
--- 56,67 ----
    inline oop resolve() const;
    inline oop peek() const;
    void release() const;
    bool is_null() const { return _obj == NULL; }
  
+   void replace(oop with_obj);
+ 
    void print() const;
    void print_on(outputStream* st) const;
  };
  
  typedef WeakHandle<vm_class_loader_data> ClassLoaderWeakHandle;