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src/hotspot/share/gc/g1/g1FullGCPrepareTask.hpp

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 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 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/g1FullGCTask.hpp"
 29 #include "gc/g1/heapRegion.hpp"
 30 #include "memory/allocation.hpp"
 31 
 32 class G1CollectedHeap;
 33 class G1CMBitMap;
 34 class G1FullCollector;

 35 class G1FullGCCompactionPoint;
 36 class HeapRegion;
 37 
 38 // Determines the regions in the heap that should be part of the compaction and
 39 // distributes them among the compaction queues in round-robin fashion.
 40 class G1DetermineCompactionQueueClosure : public HeapRegionClosure {
 41   G1CollectedHeap* _g1h;
 42   G1FullCollector* _collector;
 43   uint _cur_worker;
 44 
 45   template<bool is_humongous>
 46   inline void free_pinned_region(HeapRegion* hr);
 47 
 48   inline bool should_compact(HeapRegion* hr) const;
 49 
 50   // Returns the current worker id to assign a compaction point to, and selects
 51   // the next one round-robin style.
 52   inline uint next_worker();
 53 
 54   inline G1FullGCCompactionPoint* next_compaction_point();

 87     G1CalculatePointersClosure(G1FullCollector* collector,
 88                                G1FullGCCompactionPoint* cp);
 89 
 90     bool do_heap_region(HeapRegion* hr);
 91   };
 92 
 93   class G1ResetMetadataClosure : public HeapRegionClosure {
 94     G1CollectedHeap* _g1h;
 95     G1FullCollector* _collector;
 96 
 97     void reset_region_metadata(HeapRegion* hr);
 98 
 99   public:
100     G1ResetMetadataClosure(G1FullCollector* collector);
101 
102     bool do_heap_region(HeapRegion* hr);
103   };
104 
105   class G1PrepareCompactLiveClosure : public StackObj {
106     G1FullGCCompactionPoint* _cp;

107 
108   public:
109     G1PrepareCompactLiveClosure(G1FullGCCompactionPoint* cp);
110     size_t apply(oop object);
111   };
112 };
113 
114 // Closure to re-prepare objects in the serial compaction point queue regions for
115 // serial compaction.
116 class G1SerialRePrepareClosure : public StackObj {
117   G1FullGCCompactionPoint* _cp;
118   HeapRegion* _current;
119 
120 public:
121   G1SerialRePrepareClosure(G1FullGCCompactionPoint* hrcp, HeapRegion* hr) :
122     _cp(hrcp),
123     _current(hr) { }
124 
125   inline size_t apply(oop obj);
126 };
127 
128 #endif // SHARE_GC_G1_G1FULLGCPREPARETASK_HPP

 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 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/g1FullGCTask.hpp"
 29 #include "gc/g1/heapRegion.hpp"
 30 #include "memory/allocation.hpp"
 31 
 32 class G1CollectedHeap;
 33 class G1CMBitMap;
 34 class G1FullCollector;
 35 class SlidingForwarding;
 36 class G1FullGCCompactionPoint;
 37 class HeapRegion;
 38 
 39 // Determines the regions in the heap that should be part of the compaction and
 40 // distributes them among the compaction queues in round-robin fashion.
 41 class G1DetermineCompactionQueueClosure : public HeapRegionClosure {
 42   G1CollectedHeap* _g1h;
 43   G1FullCollector* _collector;
 44   uint _cur_worker;
 45 
 46   template<bool is_humongous>
 47   inline void free_pinned_region(HeapRegion* hr);
 48 
 49   inline bool should_compact(HeapRegion* hr) const;
 50 
 51   // Returns the current worker id to assign a compaction point to, and selects
 52   // the next one round-robin style.
 53   inline uint next_worker();
 54 
 55   inline G1FullGCCompactionPoint* next_compaction_point();

 88     G1CalculatePointersClosure(G1FullCollector* collector,
 89                                G1FullGCCompactionPoint* cp);
 90 
 91     bool do_heap_region(HeapRegion* hr);
 92   };
 93 
 94   class G1ResetMetadataClosure : public HeapRegionClosure {
 95     G1CollectedHeap* _g1h;
 96     G1FullCollector* _collector;
 97 
 98     void reset_region_metadata(HeapRegion* hr);
 99 
100   public:
101     G1ResetMetadataClosure(G1FullCollector* collector);
102 
103     bool do_heap_region(HeapRegion* hr);
104   };
105 
106   class G1PrepareCompactLiveClosure : public StackObj {
107     G1FullGCCompactionPoint* _cp;
108     SlidingForwarding* const _forwarding;
109 
110   public:
111     G1PrepareCompactLiveClosure(G1FullGCCompactionPoint* cp);
112     size_t apply(oop object);
113   };
114 };
115 
116 // Closure to re-prepare objects in the serial compaction point queue regions for
117 // serial compaction.
118 //class G1SerialRePrepareClosure : public StackObj {
119 //  G1FullGCCompactionPoint* _cp;
120 //  HeapRegion* _current;
121 //
122 //public:
123 //  G1SerialRePrepareClosure(G1FullGCCompactionPoint* hrcp, HeapRegion* hr) :
124 //    _cp(hrcp),
125 //    _current(hr) { }
126 //
127 //  inline size_t apply(oop obj);
128 //};
129 
130 #endif // SHARE_GC_G1_G1FULLGCPREPARETASK_HPP
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