CLD claiming v2
139 enum G1Mark {
140 G1MarkNone,
141 G1MarkFromRoot,
142 G1MarkPromotedFromRoot
143 };
144
145 template <G1Barrier barrier, G1Mark do_mark_object>
146 class G1ParCopyClosure : public G1ParCopyHelper {
147 public:
148 G1ParCopyClosure(G1CollectedHeap* g1h, G1ParScanThreadState* par_scan_state) :
149 G1ParCopyHelper(g1h, par_scan_state) { }
150
151 template <class T> void do_oop_work(T* p);
152 virtual void do_oop(oop* p) { do_oop_work(p); }
153 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
154 };
155
156 class G1CLDScanClosure : public CLDClosure {
157 G1ParCopyHelper* _closure;
158 bool _process_only_dirty;
159 int _claim_value;
160 int _count;
161 public:
162 G1CLDScanClosure(G1ParCopyHelper* closure,
163 bool process_only_dirty, int claim_value)
164 : _closure(closure), _process_only_dirty(process_only_dirty), _claim_value(claim_value), _count(0) {}
165 void do_cld(ClassLoaderData* cld);
166 };
167
168 // Closure for iterating over object fields during concurrent marking
169 class G1CMOopClosure : public MetadataVisitingOopIterateClosure {
170 G1CollectedHeap* _g1h;
171 G1CMTask* _task;
172 public:
173 G1CMOopClosure(G1CollectedHeap* g1h,G1CMTask* task);
174 template <class T> void do_oop_work(T* p);
175 virtual void do_oop( oop* p) { do_oop_work(p); }
176 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
177 };
178
179 // Closure to scan the root regions during concurrent marking
180 class G1RootRegionScanClosure : public MetadataVisitingOopIterateClosure {
181 private:
182 G1CollectedHeap* _g1h;
183 G1ConcurrentMark* _cm;
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139 enum G1Mark {
140 G1MarkNone,
141 G1MarkFromRoot,
142 G1MarkPromotedFromRoot
143 };
144
145 template <G1Barrier barrier, G1Mark do_mark_object>
146 class G1ParCopyClosure : public G1ParCopyHelper {
147 public:
148 G1ParCopyClosure(G1CollectedHeap* g1h, G1ParScanThreadState* par_scan_state) :
149 G1ParCopyHelper(g1h, par_scan_state) { }
150
151 template <class T> void do_oop_work(T* p);
152 virtual void do_oop(oop* p) { do_oop_work(p); }
153 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
154 };
155
156 class G1CLDScanClosure : public CLDClosure {
157 G1ParCopyHelper* _closure;
158 bool _process_only_dirty;
159 int _claim;
160 int _count;
161 public:
162 G1CLDScanClosure(G1ParCopyHelper* closure,
163 bool process_only_dirty, int claim_value)
164 : _closure(closure), _process_only_dirty(process_only_dirty), _claim(claim_value), _count(0) {}
165 void do_cld(ClassLoaderData* cld);
166 };
167
168 // Closure for iterating over object fields during concurrent marking
169 class G1CMOopClosure : public MetadataVisitingOopIterateClosure {
170 G1CollectedHeap* _g1h;
171 G1CMTask* _task;
172 public:
173 G1CMOopClosure(G1CollectedHeap* g1h,G1CMTask* task);
174 template <class T> void do_oop_work(T* p);
175 virtual void do_oop( oop* p) { do_oop_work(p); }
176 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
177 };
178
179 // Closure to scan the root regions during concurrent marking
180 class G1RootRegionScanClosure : public MetadataVisitingOopIterateClosure {
181 private:
182 G1CollectedHeap* _g1h;
183 G1ConcurrentMark* _cm;
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