src/hotspot/share/gc/shared/collectedHeap.hpp

@@ -27,10 +27,11 @@
 
 #include "gc/shared/gcCause.hpp"
 #include "gc/shared/gcWhen.hpp"
 #include "gc/shared/verifyOption.hpp"
 #include "memory/allocation.hpp"
+#include "memory/heapInspection.hpp"
 #include "runtime/handles.hpp"
 #include "runtime/perfData.hpp"
 #include "runtime/safepoint.hpp"
 #include "services/memoryUsage.hpp"
 #include "utilities/debug.hpp"

@@ -41,10 +42,11 @@
 // A "CollectedHeap" is an implementation of a java heap for HotSpot.  This
 // is an abstract class: there may be many different kinds of heaps.  This
 // class defines the functions that a heap must implement, and contains
 // infrastructure common to all heaps.
 
+class AbstractGangTask;
 class AdaptiveSizePolicy;
 class BarrierSet;
 class GCHeapSummary;
 class GCTimer;
 class GCTracer;

@@ -384,10 +386,23 @@
   virtual GrowableArray<MemoryPool*> memory_pools() = 0;
 
   // Iterate over all objects, calling "cl.do_object" on each.
   virtual void object_iterate(ObjectClosure* cl) = 0;
 
+  // Run parallel heap inspection, return false as not supported by heap.
+  virtual bool run_par_heap_inspect_task(KlassInfoTable* cit,
+                                         BoolObjectClosure* filter,
+                                         size_t* missed_count,
+                                         size_t thread_num) {
+    return false;
+  }
+
+  // Parallel iterate over all objects, reture false if heap not support.
+  virtual bool object_iterate_try_parallel(AbstractGangTask *task, size_t thread_num) {
+    return false;
+  }
+
   // Keep alive an object that was loaded with AS_NO_KEEPALIVE.
   virtual void keep_alive(oop obj) {}
 
   // Returns the longest time (in ms) that has elapsed since the last
   // time that any part of the heap was examined by a garbage collection.