25 #ifndef SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
26 #define SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
27
28 #include "gc/g1/g1FullGCCompactionPoint.hpp"
29 #include "gc/g1/g1FullGCScope.hpp"
30 #include "gc/g1/g1FullGCTask.hpp"
31 #include "gc/g1/g1RootProcessor.hpp"
32 #include "gc/g1/heapRegionManager.hpp"
33 #include "gc/shared/referenceProcessor.hpp"
34
35 class G1CMBitMap;
36 class G1FullCollector;
37
38 class G1FullGCPrepareTask : public G1FullGCTask {
39 protected:
40 volatile bool _freed_regions;
41 HeapRegionClaimer _hrclaimer;
42
43 void set_freed_regions();
44
45 public:
46 G1FullGCPrepareTask(G1FullCollector* collector);
47 void work(uint worker_id);
48 void prepare_serial_compaction();
49 bool has_freed_regions();
50
51 protected:
52 class G1CalculatePointersClosure : public HeapRegionClosure {
53 private:
54 template<bool is_humongous>
55 void free_pinned_region(HeapRegion* hr);
56 protected:
57 G1CollectedHeap* _g1h;
58 G1FullCollector* _collector;
59 G1CMBitMap* _bitmap;
60 G1FullGCCompactionPoint* _cp;
61 bool _regions_freed;
62
63 bool should_compact(HeapRegion* hr);
64 void prepare_for_compaction(HeapRegion* hr);
65 void prepare_for_compaction_work(G1FullGCCompactionPoint* cp, HeapRegion* hr);
66
67 void reset_region_metadata(HeapRegion* hr);
68
69 public:
70 G1CalculatePointersClosure(G1FullCollector* collector,
71 G1FullGCCompactionPoint* cp);
72
73 bool do_heap_region(HeapRegion* hr);
74 bool freed_regions();
75 };
76
77 class G1PrepareCompactLiveClosure : public StackObj {
78 G1FullGCCompactionPoint* _cp;
79
80 public:
81 G1PrepareCompactLiveClosure(G1FullGCCompactionPoint* cp);
82 size_t apply(oop object);
83 };
84
85 class G1RePrepareClosure : public StackObj {
86 G1FullGCCompactionPoint* _cp;
87 HeapRegion* _current;
88
89 public:
90 G1RePrepareClosure(G1FullGCCompactionPoint* hrcp,
91 HeapRegion* hr) :
92 _cp(hrcp),
93 _current(hr) { }
94
95 size_t apply(oop object);
96 };
97 };
98
99 #endif // SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
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25 #ifndef SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
26 #define SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
27
28 #include "gc/g1/g1FullGCCompactionPoint.hpp"
29 #include "gc/g1/g1FullGCScope.hpp"
30 #include "gc/g1/g1FullGCTask.hpp"
31 #include "gc/g1/g1RootProcessor.hpp"
32 #include "gc/g1/heapRegionManager.hpp"
33 #include "gc/shared/referenceProcessor.hpp"
34
35 class G1CMBitMap;
36 class G1FullCollector;
37
38 class G1FullGCPrepareTask : public G1FullGCTask {
39 protected:
40 volatile bool _freed_regions;
41 HeapRegionClaimer _hrclaimer;
42
43 void set_freed_regions();
44
45 private:
46 template <bool ALT_FWD>
47 void prepare_serial_compaction_impl();
48
49 public:
50 G1FullGCPrepareTask(G1FullCollector* collector);
51 void work(uint worker_id);
52 void prepare_serial_compaction();
53 bool has_freed_regions();
54
55 protected:
56 class G1CalculatePointersClosure : public HeapRegionClosure {
57 private:
58 template<bool is_humongous>
59 void free_pinned_region(HeapRegion* hr);
60 protected:
61 G1CollectedHeap* _g1h;
62 G1FullCollector* _collector;
63 G1CMBitMap* _bitmap;
64 G1FullGCCompactionPoint* _cp;
65 bool _regions_freed;
66
67 bool should_compact(HeapRegion* hr);
68 void prepare_for_compaction(HeapRegion* hr);
69 void prepare_for_compaction_work(G1FullGCCompactionPoint* cp, HeapRegion* hr);
70
71 void reset_region_metadata(HeapRegion* hr);
72
73 public:
74 G1CalculatePointersClosure(G1FullCollector* collector,
75 G1FullGCCompactionPoint* cp);
76
77 bool do_heap_region(HeapRegion* hr);
78 bool freed_regions();
79 };
80
81 template <bool ALT_FWD>
82 class G1PrepareCompactLiveClosure : public StackObj {
83 G1FullGCCompactionPoint* _cp;
84
85 public:
86 G1PrepareCompactLiveClosure(G1FullGCCompactionPoint* cp);
87 size_t apply(oop object);
88 };
89
90 template <bool ALT_FWD>
91 class G1RePrepareClosure : public StackObj {
92 G1FullGCCompactionPoint* _cp;
93 HeapRegion* _current;
94
95 public:
96 G1RePrepareClosure(G1FullGCCompactionPoint* hrcp,
97 HeapRegion* hr) :
98 _cp(hrcp),
99 _current(hr) { }
100
101 size_t apply(oop object);
102 };
103 };
104
105 #endif // SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
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