90 class G1ScanEvacuatedObjClosure : public G1ScanClosureBase { 91 public: 92 G1ScanEvacuatedObjClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : 93 G1ScanClosureBase(g1, par_scan_state) { } 94 95 template <class T> void do_oop_nv(T* p); 96 virtual void do_oop(oop* p) { do_oop_nv(p); } 97 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } 98 99 void set_ref_processor(ReferenceProcessor* rp) { 100 set_ref_processor_internal(rp); 101 } 102 }; 103 104 // Add back base class for metadata 105 class G1ParCopyHelper : public OopClosure { 106 protected: 107 G1CollectedHeap* _g1; 108 G1ParScanThreadState* _par_scan_state; 109 uint _worker_id; // Cache value from par_scan_state. 110 Klass* _scanned_klass; 111 G1ConcurrentMark* _cm; 112 113 // Mark the object if it's not already marked. This is used to mark 114 // objects pointed to by roots that are guaranteed not to move 115 // during the GC (i.e., non-CSet objects). It is MT-safe. 116 inline void mark_object(oop obj); 117 118 // Mark the object if it's not already marked. This is used to mark 119 // objects pointed to by roots that have been forwarded during a 120 // GC. It is MT-safe. 121 inline void mark_forwarded_object(oop from_obj, oop to_obj); 122 123 G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); 124 ~G1ParCopyHelper() { } 125 126 public: 127 void set_scanned_klass(Klass* k) { _scanned_klass = k; } 128 template <class T> inline void do_klass_barrier(T* p, oop new_obj); 129 }; 130 131 enum G1Barrier { 132 G1BarrierNone, 133 G1BarrierKlass 134 }; 135 136 enum G1Mark { 137 G1MarkNone, 138 G1MarkFromRoot, 139 G1MarkPromotedFromRoot 140 }; 141 142 template <G1Barrier barrier, G1Mark do_mark_object, bool use_ext> 143 class G1ParCopyClosure : public G1ParCopyHelper { 144 public: 145 G1ParCopyClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : 146 G1ParCopyHelper(g1, par_scan_state) { } 147 148 template <class T> void do_oop_work(T* p); 149 virtual void do_oop(oop* p) { do_oop_work(p); } 150 virtual void do_oop(narrowOop* p) { do_oop_work(p); } 151 }; 152 153 class G1KlassScanClosure : public KlassClosure { 154 G1ParCopyHelper* _closure; 155 bool _process_only_dirty; 156 int _count; 157 public: 158 G1KlassScanClosure(G1ParCopyHelper* closure, bool process_only_dirty) 159 : _process_only_dirty(process_only_dirty), _closure(closure), _count(0) {} 160 void do_klass(Klass* klass); 161 }; 162 163 // Closure for iterating over object fields during concurrent marking 164 class G1CMOopClosure : public MetadataAwareOopClosure { 165 protected: 166 G1ConcurrentMark* _cm; 167 private: 168 G1CollectedHeap* _g1h; 169 G1CMTask* _task; 170 public: 171 G1CMOopClosure(G1CollectedHeap* g1h, G1ConcurrentMark* cm, G1CMTask* task); 172 template <class T> void do_oop_nv(T* p); 173 virtual void do_oop( oop* p) { do_oop_nv(p); } 174 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } 175 }; 176 177 // Closure to scan the root regions during concurrent marking 178 class G1RootRegionScanClosure : public MetadataAwareOopClosure { 179 private: 180 G1CollectedHeap* _g1h; | 90 class G1ScanEvacuatedObjClosure : public G1ScanClosureBase { 91 public: 92 G1ScanEvacuatedObjClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : 93 G1ScanClosureBase(g1, par_scan_state) { } 94 95 template <class T> void do_oop_nv(T* p); 96 virtual void do_oop(oop* p) { do_oop_nv(p); } 97 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } 98 99 void set_ref_processor(ReferenceProcessor* rp) { 100 set_ref_processor_internal(rp); 101 } 102 }; 103 104 // Add back base class for metadata 105 class G1ParCopyHelper : public OopClosure { 106 protected: 107 G1CollectedHeap* _g1; 108 G1ParScanThreadState* _par_scan_state; 109 uint _worker_id; // Cache value from par_scan_state. 110 ClassLoaderData* _scanned_cld; 111 G1ConcurrentMark* _cm; 112 113 // Mark the object if it's not already marked. This is used to mark 114 // objects pointed to by roots that are guaranteed not to move 115 // during the GC (i.e., non-CSet objects). It is MT-safe. 116 inline void mark_object(oop obj); 117 118 // Mark the object if it's not already marked. This is used to mark 119 // objects pointed to by roots that have been forwarded during a 120 // GC. It is MT-safe. 121 inline void mark_forwarded_object(oop from_obj, oop to_obj); 122 123 G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); 124 ~G1ParCopyHelper() { } 125 126 public: 127 void set_scanned_cld(ClassLoaderData* cld) { _scanned_cld = cld; } 128 inline void do_cld_barrier(oop new_obj); 129 G1CollectedHeap* g1() { return _g1; } 130 }; 131 132 enum G1Barrier { 133 G1BarrierNone, 134 G1BarrierCLD 135 }; 136 137 enum G1Mark { 138 G1MarkNone, 139 G1MarkFromRoot, 140 G1MarkPromotedFromRoot 141 }; 142 143 template <G1Barrier barrier, G1Mark do_mark_object, bool use_ext> 144 class G1ParCopyClosure : public G1ParCopyHelper { 145 public: 146 G1ParCopyClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : 147 G1ParCopyHelper(g1, par_scan_state) { } 148 149 template <class T> void do_oop_work(T* p); 150 virtual void do_oop(oop* p) { do_oop_work(p); } 151 virtual void do_oop(narrowOop* p) { do_oop_work(p); } 152 }; 153 154 class G1CLDScanClosure : public CLDClosure { 155 G1ParCopyHelper* _closure; 156 bool _process_only_dirty; 157 bool _must_claim; 158 int _count; 159 public: 160 G1CLDScanClosure(G1ParCopyHelper* closure, 161 bool process_only_dirty, bool must_claim) 162 : _process_only_dirty(process_only_dirty), _must_claim(must_claim), _closure(closure), _count(0) {} 163 void do_cld(ClassLoaderData* cld); 164 }; 165 166 // Closure for iterating over object fields during concurrent marking 167 class G1CMOopClosure : public MetadataAwareOopClosure { 168 protected: 169 G1ConcurrentMark* _cm; 170 private: 171 G1CollectedHeap* _g1h; 172 G1CMTask* _task; 173 public: 174 G1CMOopClosure(G1CollectedHeap* g1h, G1ConcurrentMark* cm, G1CMTask* task); 175 template <class T> void do_oop_nv(T* p); 176 virtual void do_oop( oop* p) { do_oop_nv(p); } 177 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } 178 }; 179 180 // Closure to scan the root regions during concurrent marking 181 class G1RootRegionScanClosure : public MetadataAwareOopClosure { 182 private: 183 G1CollectedHeap* _g1h; |