49 // system dictionary, are roots of garbage collection, and provides iterators

    49 // system dictionary, are roots of garbage collection, and provides iterators

    50 // for root tracing and other GC operations.

    50 // for root tracing and other GC operations.

    51 

    51 

    52 class ClassLoaderData;

    52 class ClassLoaderData;

    53 class JNIMethodBlock;

    53 class JNIMethodBlock;

    54 class Metadebug;

    55 class Metadebug;

    55 

    56 

    56 // GC root for walking class loader data created

    57 // GC root for walking class loader data created

    57 

    58 

    58 class ClassLoaderDataGraph : public AllStatic {

    59 class ClassLoaderDataGraph : public AllStatic {

   170   volatile int _claimed;   // true if claimed, for example during GC traces.

   171   volatile int _claimed;   // true if claimed, for example during GC traces.

   171                            // To avoid applying oop closure more than once.

   172                            // To avoid applying oop closure more than once.

   172                            // Has to be an int because we cas it.

   173                            // Has to be an int because we cas it.

   173   Klass* _klasses;         // The classes defined by the class loader.

   174   Klass* _klasses;         // The classes defined by the class loader.

   174 

   175 

   175   // These method IDs are created for the class loader and set to NULL when the

   178   // These method IDs are created for the class loader and set to NULL when the

   176   // class loader is unloaded.  They are rarely freed, only for redefine classes

   179   // class loader is unloaded.  They are rarely freed, only for redefine classes

   177   // and if they lose a data race in InstanceKlass.

   180   // and if they lose a data race in InstanceKlass.

   178   JNIMethodBlock*                  _jmethod_ids;

   181   JNIMethodBlock*                  _jmethod_ids;

   179 

   182 

   194 

   197 

   195   ClassLoaderData(Handle h_class_loader, bool is_anonymous, Dependencies dependencies);

   198   ClassLoaderData(Handle h_class_loader, bool is_anonymous, Dependencies dependencies);

   196   ~ClassLoaderData();

   199   ~ClassLoaderData();

   197 

   200 

   198   void set_metaspace(Metaspace* m) { _metaspace = m; }

   201   void set_metaspace(Metaspace* m) { _metaspace = m; }

   199 

   205 

   200   // GC interface.

   206   // GC interface.

   201   void clear_claimed()          { _claimed = 0; }

   207   void clear_claimed()          { _claimed = 0; }

   202   bool claimed() const          { return _claimed == 1; }

   208   bool claimed() const          { return _claimed == 1; }

   203   bool claim();

   209   bool claim();

   282   void print_value_on(outputStream* out) const;

   288   void print_value_on(outputStream* out) const;

   283   void dump(outputStream * const out) PRODUCT_RETURN;

   289   void dump(outputStream * const out) PRODUCT_RETURN;

   284   void verify();

   290   void verify();

   285   const char* loader_name();

   291   const char* loader_name();

   286 

   292 

   287   void add_class(Klass* k);

   294   void add_class(Klass* k);

   288   void remove_class(Klass* k);

   295   void remove_class(Klass* k);

   289   bool contains_klass(Klass* k);

   296   bool contains_klass(Klass* k);

   290   void record_dependency(Klass* to, TRAPS);

   297   void record_dependency(Klass* to, TRAPS);

   291   void init_dependencies(TRAPS);

   298   void init_dependencies(TRAPS);