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src/hotspot/share/gc/g1/g1RootClosures.hpp

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rev 49680 : imported patch 6672778-partial-queue-trimming
rev 49681 : [mq]: 6672778-refactoring


  32 class G1ParScanThreadState;
  33 
  34 class G1RootClosures : public CHeapObj<mtGC> {
  35 public:
  36   virtual ~G1RootClosures() {}
  37 
  38 // Closures to process raw oops in the root set.
  39   virtual OopClosure* weak_oops() = 0;
  40   virtual OopClosure* strong_oops() = 0;
  41 
  42   // Closures to process CLDs in the root set.
  43   virtual CLDClosure* weak_clds() = 0;
  44   virtual CLDClosure* strong_clds() = 0;
  45 
  46   // Applied to code blobs reachable as strong roots.
  47   virtual CodeBlobClosure* strong_codeblobs() = 0;
  48 };
  49 
  50 class G1EvacuationRootClosures : public G1RootClosures {
  51 public:
  52   // The amount of time spent during trimming evacuation queues ("Object Copy" time)
  53   // during iterating through the roots.
  54   virtual double trim_time_seconds() = 0;
  55 
  56   // Applied to the weakly reachable CLDs when all strongly reachable
  57   // CLDs are guaranteed to have been processed.
  58   virtual CLDClosure* second_pass_weak_clds() = 0;
  59 
  60   // Get a raw oop closure for processing oops, bypassing the flushing above.
  61   virtual OopClosure* raw_strong_oops() = 0;
  62 
  63   // Applied to code blobs treated as weak roots.
  64   virtual CodeBlobClosure* weak_codeblobs() = 0;
  65 
  66   // Is this closure used for tracing metadata?
  67   virtual bool trace_metadata() = 0;
  68 
  69   static G1EvacuationRootClosures* create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h);
  70 };
  71 
  72 #endif // SHARE_VM_GC_G1_G1ROOTCLOSURESET_HPP


  32 class G1ParScanThreadState;
  33 
  34 class G1RootClosures : public CHeapObj<mtGC> {
  35 public:
  36   virtual ~G1RootClosures() {}
  37 
  38 // Closures to process raw oops in the root set.
  39   virtual OopClosure* weak_oops() = 0;
  40   virtual OopClosure* strong_oops() = 0;
  41 
  42   // Closures to process CLDs in the root set.
  43   virtual CLDClosure* weak_clds() = 0;
  44   virtual CLDClosure* strong_clds() = 0;
  45 
  46   // Applied to code blobs reachable as strong roots.
  47   virtual CodeBlobClosure* strong_codeblobs() = 0;
  48 };
  49 
  50 class G1EvacuationRootClosures : public G1RootClosures {
  51 public:




  52   // Applied to the weakly reachable CLDs when all strongly reachable
  53   // CLDs are guaranteed to have been processed.
  54   virtual CLDClosure* second_pass_weak_clds() = 0;
  55 
  56   // Get a raw oop closure for processing oops, bypassing the flushing above.
  57   virtual OopClosure* raw_strong_oops() = 0;
  58 
  59   // Applied to code blobs treated as weak roots.
  60   virtual CodeBlobClosure* weak_codeblobs() = 0;
  61 
  62   // Is this closure used for tracing metadata?
  63   virtual bool trace_metadata() = 0;
  64 
  65   static G1EvacuationRootClosures* create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h);
  66 };
  67 
  68 #endif // SHARE_VM_GC_G1_G1ROOTCLOSURESET_HPP
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