17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
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:
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
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
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 class SlidingForwarding;
38
39 class G1FullGCPrepareTask : public G1FullGCTask {
40 protected:
41 volatile bool _freed_regions;
42 HeapRegionClaimer _hrclaimer;
43
44 void set_freed_regions();
45
46 public:
47 G1FullGCPrepareTask(G1FullCollector* collector);
48 void work(uint worker_id);
49 void prepare_serial_compaction();
50 bool has_freed_regions();
51
52 protected:
53 class G1CalculatePointersClosure : public HeapRegionClosure {
54 private:
55 template<bool is_humongous>
56 void free_pinned_region(HeapRegion* hr);
57 protected:
60 G1CMBitMap* _bitmap;
61 G1FullGCCompactionPoint* _cp;
62 bool _regions_freed;
63
64 bool should_compact(HeapRegion* hr);
65 void prepare_for_compaction(HeapRegion* hr);
66 void prepare_for_compaction_work(G1FullGCCompactionPoint* cp, HeapRegion* hr);
67
68 void reset_region_metadata(HeapRegion* hr);
69
70 public:
71 G1CalculatePointersClosure(G1FullCollector* collector,
72 G1FullGCCompactionPoint* cp);
73
74 bool do_heap_region(HeapRegion* hr);
75 bool freed_regions();
76 };
77
78 class G1PrepareCompactLiveClosure : public StackObj {
79 G1FullGCCompactionPoint* _cp;
80 SlidingForwarding* const _forwarding;
81
82 public:
83 G1PrepareCompactLiveClosure(G1FullGCCompactionPoint* cp);
84 size_t apply(oop object);
85 };
86
87 class G1RePrepareClosure : public StackObj {
88 G1FullGCCompactionPoint* _cp;
89 HeapRegion* _current;
90 SlidingForwarding* const _forwarding;
91
92 public:
93 G1RePrepareClosure(G1FullGCCompactionPoint* hrcp,
94 HeapRegion* hr) :
95 _cp(hrcp),
96 _current(hr),
97 _forwarding(G1CollectedHeap::heap()->forwarding()) { }
98
99 size_t apply(oop object);
100 };
101 };
102
103 #endif // SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
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