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24 
25 #ifndef SHARE_GC_G1_G1CODEBLOBCLOSURE_HPP
26 #define SHARE_GC_G1_G1CODEBLOBCLOSURE_HPP
27 
28 #include "gc/g1/g1CollectedHeap.hpp"
29 #include "memory/iterator.hpp"
30 
31 class G1ConcurrentMark;
32 class nmethod;
33 
34 class G1CodeBlobClosure : public CodeBlobClosure {
35   // Gather nmethod remembered set entries.
36   class HeapRegionGatheringOopClosure : public OopClosure {
37     G1CollectedHeap* _g1h;
38     OopClosure* _work;
39     nmethod* _nm;
40 
41     template <typename T>
42     void do_oop_work(T* p);
43 
44   public:
HeapRegionGatheringOopClosure(OopClosure * oc)45     HeapRegionGatheringOopClosure(OopClosure* oc) : _g1h(G1CollectedHeap::heap()), _work(oc), _nm(NULL) {}
46 
47     void do_oop(oop* o);
48     void do_oop(narrowOop* o);
49 
set_nm(nmethod * nm)50     void set_nm(nmethod* nm) {
51       _nm = nm;
52     }
53   };
54 
55   // Mark all oops below TAMS.
56   class MarkingOopClosure : public OopClosure {
57     G1ConcurrentMark* _cm;
58     uint _worker_id;
59 
60     template <typename T>
61     void do_oop_work(T* p);
62 
63   public:
64     MarkingOopClosure(uint worker_id);
65 
66     void do_oop(oop* o);
67     void do_oop(narrowOop* o);
68   };
69 
70   HeapRegionGatheringOopClosure _oc;
71   MarkingOopClosure _marking_oc;
72 
73   bool _strong;
74 public:
G1CodeBlobClosure(uint worker_id,OopClosure * oc,bool strong)75   G1CodeBlobClosure(uint worker_id, OopClosure* oc, bool strong) :
76     _oc(oc), _marking_oc(worker_id), _strong(strong) { }
77 
78   void do_evacuation_and_fixup(nmethod* nm);
79   void do_marking(nmethod* nm);
80 
81   void do_code_blob(CodeBlob* cb);
82 };
83 
84 #endif // SHARE_GC_G1_G1CODEBLOBCLOSURE_HPP
85