src/hotspot/share/gc/z/zRootsIterator.hpp

concurrent root iterator

*** 76,116 ****
    void weak_oops_do(BoolObjectClosure* is_alive, OopClosure* cl);
  };
  
  class ZRootsIterator {
  private:
-   ZOopStorageIterator _jni_handles_iter;
- 
    void do_universe(OopClosure* cl);
-   void do_jni_handles(OopClosure* cl);
    void do_object_synchronizer(OopClosure* cl);
    void do_management(OopClosure* cl);
    void do_jvmti_export(OopClosure* cl);
    void do_jvmti_weak_export(OopClosure* cl);
    void do_system_dictionary(OopClosure* cl);
-   void do_class_loader_data_graph(OopClosure* cl);
    void do_threads(OopClosure* cl);
    void do_code_cache(OopClosure* cl);
  
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_universe>                  _universe;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_object_synchronizer>       _object_synchronizer;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_management>                _management;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_jvmti_export>              _jvmti_export;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_jvmti_weak_export>         _jvmti_weak_export;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_system_dictionary>         _system_dictionary;
-   ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_jni_handles>             _jni_handles;
-   ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_class_loader_data_graph> _class_loader_data_graph;
    ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_threads>                 _threads;
    ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_code_cache>              _code_cache;
  
  public:
    ZRootsIterator();
    ~ZRootsIterator();
  
    void oops_do(OopClosure* cl, bool visit_jvmti_weak_export = false);
  };
  
  class ZWeakRootsIterator {
  private:
    void do_jvmti_weak_export(BoolObjectClosure* is_alive, OopClosure* cl);
    void do_jfr_weak(BoolObjectClosure* is_alive, OopClosure* cl);
  
--- 76,127 ----
    void weak_oops_do(BoolObjectClosure* is_alive, OopClosure* cl);
  };
  
  class ZRootsIterator {
  private:
    void do_universe(OopClosure* cl);
    void do_object_synchronizer(OopClosure* cl);
    void do_management(OopClosure* cl);
    void do_jvmti_export(OopClosure* cl);
    void do_jvmti_weak_export(OopClosure* cl);
    void do_system_dictionary(OopClosure* cl);
    void do_threads(OopClosure* cl);
    void do_code_cache(OopClosure* cl);
  
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_universe>                  _universe;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_object_synchronizer>       _object_synchronizer;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_management>                _management;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_jvmti_export>              _jvmti_export;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_jvmti_weak_export>         _jvmti_weak_export;
    ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_system_dictionary>         _system_dictionary;
    ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_threads>                 _threads;
    ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_code_cache>              _code_cache;
  
  public:
    ZRootsIterator();
    ~ZRootsIterator();
  
    void oops_do(OopClosure* cl, bool visit_jvmti_weak_export = false);
  };
  
+ class ZConcurrentRootsIterator {
+ private:
+   ZConcurrentOopStorageIterator _jni_handles_iter;
+ 
+   void do_jni_handles(OopClosure* cl);
+   void do_class_loader_data_graph(OopClosure* cl);
+ 
+   ZParallelOopsDo<ZConcurrentRootsIterator, &ZConcurrentRootsIterator::do_jni_handles>             _jni_handles;
+   ZParallelOopsDo<ZConcurrentRootsIterator, &ZConcurrentRootsIterator::do_class_loader_data_graph> _class_loader_data_graph;
+ 
+ public:
+   ZConcurrentRootsIterator();
+   ~ZConcurrentRootsIterator();
+ 
+   void oops_do(OopClosure* cl);
+ };
+ 
  class ZWeakRootsIterator {
  private:
    void do_jvmti_weak_export(BoolObjectClosure* is_alive, OopClosure* cl);
    void do_jfr_weak(BoolObjectClosure* is_alive, OopClosure* cl);