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src/hotspot/share/memory/heapShared.hpp

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 108   // This is a list of subgraph infos built at dump time while
 109   // archiving object subgraphs.
 110   static KlassSubGraphInfo* _subgraph_info_list;
 111 
 112   // Contains a list of ArchivedKlassSubGraphInfoRecords that is stored
 113   // in the archive file and reloaded at runtime.
 114   static int _num_archived_subgraph_info_records;
 115   static Array<ArchivedKlassSubGraphInfoRecord>* _archived_subgraph_info_records;
 116 
 117   // Archive object sub-graph starting from the given static field
 118   // in Klass k's mirror.
 119   static void archive_reachable_objects_from_static_field(
 120     Klass* k, int field_ofset, BasicType field_type, TRAPS);
 121 
 122   static KlassSubGraphInfo* find_subgraph_info(Klass *k);
 123   static KlassSubGraphInfo* get_subgraph_info(Klass *k);
 124   static int num_of_subgraph_infos();
 125 
 126   static size_t build_archived_subgraph_info_records(int num_records);
 127 
 128   // Used by decode_with_archived_oop_encoding_mode
 129   static address _narrow_oop_base;
 130   static int     _narrow_oop_shift;
 131 
 132 #endif // INCLUDE_CDS_JAVA_HEAP
 133  public:
 134   static char* read_archived_subgraph_infos(char* buffer) NOT_CDS_JAVA_HEAP_RETURN_(buffer);
 135   static void write_archived_subgraph_infos() NOT_CDS_JAVA_HEAP_RETURN;
 136   static void initialize_from_archived_subgraph(Klass* k) NOT_CDS_JAVA_HEAP_RETURN;
 137 
 138   // NarrowOops stored in the CDS archive may use a different encoding scheme
 139   // than Universe::narrow_oop_{base,shift} -- see FileMapInfo::map_heap_regions_impl.
 140   // To decode them, do not use CompressedOops::decode_not_null. Use this
 141   // function instead.
 142   inline static oop decode_with_archived_oop_encoding_mode(narrowOop v) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
 143 
 144   static void init_narrow_oop_decoding(address base, int shift) NOT_CDS_JAVA_HEAP_RETURN;
 145 
 146   static void patch_archived_heap_embedded_pointers(MemRegion mem, address  oopmap,
 147                                                     size_t oopmap_in_bits) NOT_CDS_JAVA_HEAP_RETURN;
 148 
 149   static void init_archivable_static_fields(Thread* THREAD) NOT_CDS_JAVA_HEAP_RETURN;
 150   static void archive_module_graph_objects(Thread* THREAD) NOT_CDS_JAVA_HEAP_RETURN;
 151 
 152 #if INCLUDE_CDS_JAVA_HEAP
 153   static ResourceBitMap calculate_oopmap(MemRegion region);
 154 #endif
 155 };
 156 #endif // SHARE_VM_MEMORY_HEAPSHARED_HPP


 108   // This is a list of subgraph infos built at dump time while
 109   // archiving object subgraphs.
 110   static KlassSubGraphInfo* _subgraph_info_list;
 111 
 112   // Contains a list of ArchivedKlassSubGraphInfoRecords that is stored
 113   // in the archive file and reloaded at runtime.
 114   static int _num_archived_subgraph_info_records;
 115   static Array<ArchivedKlassSubGraphInfoRecord>* _archived_subgraph_info_records;
 116 
 117   // Archive object sub-graph starting from the given static field
 118   // in Klass k's mirror.
 119   static void archive_reachable_objects_from_static_field(
 120     Klass* k, int field_ofset, BasicType field_type, TRAPS);
 121 
 122   static KlassSubGraphInfo* find_subgraph_info(Klass *k);
 123   static KlassSubGraphInfo* get_subgraph_info(Klass *k);
 124   static int num_of_subgraph_infos();
 125 
 126   static size_t build_archived_subgraph_info_records(int num_records);
 127 
 128   // Used by decode_from_archive
 129   static address _narrow_oop_base;
 130   static int     _narrow_oop_shift;
 131 
 132 #endif // INCLUDE_CDS_JAVA_HEAP
 133  public:
 134   static char* read_archived_subgraph_infos(char* buffer) NOT_CDS_JAVA_HEAP_RETURN_(buffer);
 135   static void write_archived_subgraph_infos() NOT_CDS_JAVA_HEAP_RETURN;
 136   static void initialize_from_archived_subgraph(Klass* k) NOT_CDS_JAVA_HEAP_RETURN;
 137 
 138   // NarrowOops stored in the CDS archive may use a different encoding scheme
 139   // than Universe::narrow_oop_{base,shift} -- see FileMapInfo::map_heap_regions_impl.
 140   // To decode them, do not use CompressedOops::decode_not_null. Use this
 141   // function instead.
 142   inline static oop decode_from_archive(narrowOop v) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
 143 
 144   static void init_narrow_oop_decoding(address base, int shift) NOT_CDS_JAVA_HEAP_RETURN;
 145 
 146   static void patch_archived_heap_embedded_pointers(MemRegion mem, address  oopmap,
 147                                                     size_t oopmap_in_bits) NOT_CDS_JAVA_HEAP_RETURN;
 148 
 149   static void init_archivable_static_fields(Thread* THREAD) NOT_CDS_JAVA_HEAP_RETURN;
 150   static void archive_module_graph_objects(Thread* THREAD) NOT_CDS_JAVA_HEAP_RETURN;
 151 
 152 #if INCLUDE_CDS_JAVA_HEAP
 153   static ResourceBitMap calculate_oopmap(MemRegion region);
 154 #endif
 155 };
 156 #endif // SHARE_VM_MEMORY_HEAPSHARED_HPP
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