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src/hotspot/share/oops/instanceClassLoaderKlass.hpp

8211447: Replace oop_pc_update_pointers with oop_iterate and closure

30 class ClassFileParser;                                                                                                     
31 
32 // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does                                           
33 // not add any field.  It is added to walk the dependencies for the class loader                                           
34 // key that this class loader points to.  This is how the loader_data graph is                                             
35 // walked and dependant class loaders are kept alive.  I thought we walked                                                 
36 // the list later?                                                                                                         
37 
38 class InstanceClassLoaderKlass: public InstanceKlass {                                                                     
39   friend class VMStructs;                                                                                                  
40   friend class InstanceKlass;                                                                                              
41 public:                                                                                                                    
42   static const KlassID ID = InstanceClassLoaderKlassID;                                                                    
43 
44 private:                                                                                                                   
45   InstanceClassLoaderKlass(const ClassFileParser& parser) : InstanceKlass(parser, InstanceKlass::_misc_kind_class_loader, I
46 
47 public:                                                                                                                    
48   InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }                              
49 
50   // GC specific object visitors                                                                                           
51   //                                                                                                                       
52 #if INCLUDE_PARALLELGC                                                                                                     
53   // Parallel Compact                                                                                                      
54   void oop_pc_update_pointers(oop obj, ParCompactionManager* cm);                                                          
55 #endif                                                                                                                     
56                                                                                                                            
57   // Oop fields (and metadata) iterators                                                                                   
58   //                                                                                                                       
59   // The InstanceClassLoaderKlass iterators also visit the CLD pointer (or mirror of anonymous klasses.)                   
60 
61  public:                                                                                                                   
62   // Forward iteration                                                                                                     
63   // Iterate over the oop fields and metadata.                                                                             
64   template <typename T, class OopClosureType>                                                                              
65   inline void oop_oop_iterate(oop obj, OopClosureType* closure);                                                           
66 
67   // Reverse iteration                                                                                                     
68   // Iterate over the oop fields and metadata.                                                                             
69   template <typename T, class OopClosureType>                                                                              
70   inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);                                                   
71 
72   // Bounded range iteration                                                                                               
73   // Iterate over the oop fields and metadata.                                                                             
74   template <typename T, class OopClosureType>                                                                              
75   inline void oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr);                                     

30 class ClassFileParser;
31 
32 // An InstanceClassLoaderKlass is a specialization of the InstanceKlass. It does
33 // not add any field.  It is added to walk the dependencies for the class loader
34 // key that this class loader points to.  This is how the loader_data graph is
35 // walked and dependant class loaders are kept alive.  I thought we walked
36 // the list later?
37 
38 class InstanceClassLoaderKlass: public InstanceKlass {
39   friend class VMStructs;
40   friend class InstanceKlass;
41 public:
42   static const KlassID ID = InstanceClassLoaderKlassID;
43 
44 private:
45   InstanceClassLoaderKlass(const ClassFileParser& parser) : InstanceKlass(parser, InstanceKlass::_misc_kind_class_loader, I
46 
47 public:
48   InstanceClassLoaderKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
49 







50   // Oop fields (and metadata) iterators
51   //
52   // The InstanceClassLoaderKlass iterators also visit the CLD pointer (or mirror of anonymous klasses.)
53 
54  public:
55   // Forward iteration
56   // Iterate over the oop fields and metadata.
57   template <typename T, class OopClosureType>
58   inline void oop_oop_iterate(oop obj, OopClosureType* closure);
59 
60   // Reverse iteration
61   // Iterate over the oop fields and metadata.
62   template <typename T, class OopClosureType>
63   inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);
64 
65   // Bounded range iteration
66   // Iterate over the oop fields and metadata.
67   template <typename T, class OopClosureType>
68   inline void oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr);
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