61 class Metachunk;

    61 class Metachunk;

    62 class MetaspaceTracer;

    62 class MetaspaceTracer;

    63 class MetaWord;

    63 class MetaWord;

    64 class Mutex;

    64 class Mutex;

    65 class outputStream;

    65 class outputStream;

    66 class SpaceManager;

    67 class SpaceManager;

    67 class VirtualSpaceList;

    68 class VirtualSpaceList;

    68 

    69 

    69 // Metaspaces each have a  SpaceManager and allocations

    70 // Metaspaces each have a  SpaceManager and allocations

    70 // are done by the SpaceManager.  Allocations are done

    71 // are done by the SpaceManager.  Allocations are done

    85   friend class VM_CollectForMetadataAllocation;

    86   friend class VM_CollectForMetadataAllocation;

    86   friend class MetaspaceGC;

    87   friend class MetaspaceGC;

    87   friend class MetaspaceAux;

    88   friend class MetaspaceAux;

    88   friend class MetaspaceShared;

    89   friend class MetaspaceShared;

    89   friend class CollectorPolicy;

    90   friend class CollectorPolicy;

    90 

    92 

    91  public:

    93  public:

    92   enum MetadataType {

    94   enum MetadataType {

    93     ClassType,

    95     ClassType,

    94     NonClassType,

    96     NonClassType,

   345   static size_t min_chunk_size_words();

   347   static size_t min_chunk_size_words();

   346   static size_t min_chunk_size_bytes() {

   348   static size_t min_chunk_size_bytes() {

   347     return min_chunk_size_words() * BytesPerWord;

   349     return min_chunk_size_words() * BytesPerWord;

   348   }

   350   }

   349 

   351 

   350   static bool has_chunk_free_list(Metaspace::MetadataType mdtype);

   354   static bool has_chunk_free_list(Metaspace::MetadataType mdtype);

   351   static MetaspaceChunkFreeListSummary chunk_free_list_summary(Metaspace::MetadataType mdtype);

   355   static MetaspaceChunkFreeListSummary chunk_free_list_summary(Metaspace::MetadataType mdtype);

   352 

   356 

   353   // Print change in used metadata.

   357   // Print change in used metadata.

   354   static void print_metaspace_change(size_t prev_metadata_used);

   358   static void print_metaspace_change(size_t prev_metadata_used);