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

rev 47957 : 8191564: Refactor GC related servicability code into GC specific subclasses

*** 56,65 ****
--- 56,66 ----
  //
  //   ParNewGeneration + ConcurrentMarkSweepGeneration
  //
  
  class DefNewGeneration;
+ class GCMemoryManager;
  class GenerationSpec;
  class CompactibleSpace;
  class ContiguousSpace;
  class CompactPoint;
  class OopsInGenClosure;
*** 84,93 ****
--- 85,96 ----
   private:
    jlong _time_of_last_gc; // time when last gc on this generation happened (ms)
    MemRegion _prev_used_region; // for collectors that want to "remember" a value for
                                 // used region at some specific point during collection.
  
+   GCMemoryManager* _memory_manager;
+ 
   protected:
    // Minimum and maximum addresses for memory reserved (not necessarily
    // committed) for generation.
    // Used by card marking code. Must not overlap with address ranges of
    // other generations.
*** 104,114 ****
  
    // Statistics for garbage collection
    GCStats* _gc_stats;
  
    // Initialize the generation.
!   Generation(ReservedSpace rs, size_t initial_byte_size);
  
    // Apply "cl->do_oop" to (the address of) (exactly) all the ref fields in
    // "sp" that point into younger generations.
    // The iteration is only over objects allocated at the start of the
    // iterations; objects allocated as a result of applying the closure are
--- 107,117 ----
  
    // Statistics for garbage collection
    GCStats* _gc_stats;
  
    // Initialize the generation.
!   Generation(ReservedSpace rs, size_t initial_byte_size, GCMemoryManager* memory_manager);
  
    // Apply "cl->do_oop" to (the address of) (exactly) all the ref fields in
    // "sp" that point into younger generations.
    // The iteration is only over objects allocated at the start of the
    // iterations; objects allocated as a result of applying the closure are
*** 132,141 ****
--- 135,148 ----
      // (we expect its low byte to be zero - see implementation of post_barrier)
      LogOfGenGrain = 16 ARM32_ONLY(+1),
      GenGrain = 1 << LogOfGenGrain
    };
  
+   GCMemoryManager* memory_manager() {
+     return _memory_manager;
+   }
+ 
    // allocate and initialize ("weak") refs processing support
    virtual void ref_processor_init();
    void set_ref_processor(ReferenceProcessor* rp) {
      assert(_ref_processor == NULL, "clobbering existing _ref_processor");
      _ref_processor = rp;