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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
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147 void RecordWriteOfCodeEntrySlow(JSFunction* host, Object** slot, Code* value); | 147 void RecordWriteOfCodeEntrySlow(JSFunction* host, Object** slot, Code* value); |
148 void RecordCodeTargetPatch(Code* host, Address pc, HeapObject* value); | 148 void RecordCodeTargetPatch(Code* host, Address pc, HeapObject* value); |
149 void RecordCodeTargetPatch(Address pc, HeapObject* value); | 149 void RecordCodeTargetPatch(Address pc, HeapObject* value); |
150 | 150 |
151 inline void RecordWrites(HeapObject* obj); | 151 inline void RecordWrites(HeapObject* obj); |
152 | 152 |
153 inline void BlackToGreyAndUnshift(HeapObject* obj, MarkBit mark_bit); | 153 inline void BlackToGreyAndUnshift(HeapObject* obj, MarkBit mark_bit); |
154 | 154 |
155 inline void WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit); | 155 inline void WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit); |
156 | 156 |
| 157 inline void WhiteToGrey(HeapObject* obj, MarkBit mark_bit); |
| 158 |
157 // Does white->black or keeps gray or black color. Returns true if converting | 159 // Does white->black or keeps gray or black color. Returns true if converting |
158 // white to black. | 160 // white to black. |
159 inline bool MarkBlackOrKeepGrey(MarkBit mark_bit) { | 161 inline bool MarkBlackOrKeepGrey(MarkBit mark_bit) { |
160 ASSERT(!Marking::IsImpossible(mark_bit)); | 162 ASSERT(!Marking::IsImpossible(mark_bit)); |
161 if (mark_bit.Get()) { | 163 if (mark_bit.Get()) { |
162 // Grey or black: Keep the color. | 164 // Grey or black: Keep the color. |
163 return false; | 165 return false; |
164 } | 166 } |
165 mark_bit.Set(); | 167 mark_bit.Set(); |
166 ASSERT(Marking::IsBlack(mark_bit)); | 168 ASSERT(Marking::IsBlack(mark_bit)); |
167 return true; | 169 return true; |
168 } | 170 } |
169 | 171 |
170 // Marks the object grey and pushes it on the marking stack. | |
171 // Returns true if object needed marking and false otherwise. | |
172 // This is for incremental marking only. | |
173 INLINE(bool MarkObjectAndPush(HeapObject* obj)); | |
174 | |
175 // Marks the object black without pushing it on the marking stack. | |
176 // Returns true if object needed marking and false otherwise. | |
177 // This is for incremental marking only. | |
178 INLINE(bool MarkObjectWithoutPush(HeapObject* obj)); | |
179 | |
180 inline int steps_count() { | 172 inline int steps_count() { |
181 return steps_count_; | 173 return steps_count_; |
182 } | 174 } |
183 | 175 |
184 inline double steps_took() { | 176 inline double steps_took() { |
185 return steps_took_; | 177 return steps_took_; |
186 } | 178 } |
187 | 179 |
188 inline double longest_step() { | 180 inline double longest_step() { |
189 return longest_step_; | 181 return longest_step_; |
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261 void VisitGlobalContext(Context* ctx, ObjectVisitor* v); | 253 void VisitGlobalContext(Context* ctx, ObjectVisitor* v); |
262 | 254 |
263 Heap* heap_; | 255 Heap* heap_; |
264 | 256 |
265 State state_; | 257 State state_; |
266 bool is_compacting_; | 258 bool is_compacting_; |
267 | 259 |
268 VirtualMemory* marking_deque_memory_; | 260 VirtualMemory* marking_deque_memory_; |
269 bool marking_deque_memory_committed_; | 261 bool marking_deque_memory_committed_; |
270 MarkingDeque marking_deque_; | 262 MarkingDeque marking_deque_; |
271 Marker<IncrementalMarking> marker_; | |
272 | 263 |
273 int steps_count_; | 264 int steps_count_; |
274 double steps_took_; | 265 double steps_took_; |
275 double longest_step_; | 266 double longest_step_; |
276 int64_t old_generation_space_available_at_start_of_incremental_; | 267 int64_t old_generation_space_available_at_start_of_incremental_; |
277 int64_t old_generation_space_used_at_start_of_incremental_; | 268 int64_t old_generation_space_used_at_start_of_incremental_; |
278 int steps_count_since_last_gc_; | 269 int steps_count_since_last_gc_; |
279 double steps_took_since_last_gc_; | 270 double steps_took_since_last_gc_; |
280 int64_t bytes_rescanned_; | 271 int64_t bytes_rescanned_; |
281 bool should_hurry_; | 272 bool should_hurry_; |
282 int allocation_marking_factor_; | 273 int allocation_marking_factor_; |
283 intptr_t bytes_scanned_; | 274 intptr_t bytes_scanned_; |
284 intptr_t allocated_; | 275 intptr_t allocated_; |
285 | 276 |
286 int no_marking_scope_depth_; | 277 int no_marking_scope_depth_; |
287 | 278 |
288 DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking); | 279 DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking); |
289 }; | 280 }; |
290 | 281 |
291 } } // namespace v8::internal | 282 } } // namespace v8::internal |
292 | 283 |
293 #endif // V8_INCREMENTAL_MARKING_H_ | 284 #endif // V8_INCREMENTAL_MARKING_H_ |
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