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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 |
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157 void RecordWriteOfCodeEntrySlow(JSFunction* host, Object** slot, Code* value); | 157 void RecordWriteOfCodeEntrySlow(JSFunction* host, Object** slot, Code* value); |
158 void RecordCodeTargetPatch(Code* host, Address pc, HeapObject* value); | 158 void RecordCodeTargetPatch(Code* host, Address pc, HeapObject* value); |
159 void RecordCodeTargetPatch(Address pc, HeapObject* value); | 159 void RecordCodeTargetPatch(Address pc, HeapObject* value); |
160 | 160 |
161 inline void RecordWrites(HeapObject* obj); | 161 inline void RecordWrites(HeapObject* obj); |
162 | 162 |
163 inline void BlackToGreyAndUnshift(HeapObject* obj, MarkBit mark_bit); | 163 inline void BlackToGreyAndUnshift(HeapObject* obj, MarkBit mark_bit); |
164 | 164 |
165 inline void WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit); | 165 inline void WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit); |
166 | 166 |
167 // Does white->black or keeps gray or black color. Returns true if converting | |
168 // white to black. | |
169 inline bool MarkBlackOrKeepGrey(MarkBit mark_bit) { | |
170 ASSERT(!Marking::IsImpossible(mark_bit)); | |
171 if (mark_bit.Get()) { | |
172 // Grey or black: Keep the color. | |
173 return false; | |
174 } | |
175 mark_bit.Set(); | |
176 ASSERT(Marking::IsBlack(mark_bit)); | |
177 return true; | |
178 } | |
179 | |
180 inline int steps_count() { | 167 inline int steps_count() { |
181 return steps_count_; | 168 return steps_count_; |
182 } | 169 } |
183 | 170 |
184 inline double steps_took() { | 171 inline double steps_took() { |
185 return steps_took_; | 172 return steps_took_; |
186 } | 173 } |
187 | 174 |
188 inline double longest_step() { | 175 inline double longest_step() { |
189 return longest_step_; | 176 return longest_step_; |
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289 intptr_t write_barriers_invoked_since_last_step_; | 276 intptr_t write_barriers_invoked_since_last_step_; |
290 | 277 |
291 int no_marking_scope_depth_; | 278 int no_marking_scope_depth_; |
292 | 279 |
293 DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking); | 280 DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking); |
294 }; | 281 }; |
295 | 282 |
296 } } // namespace v8::internal | 283 } } // namespace v8::internal |
297 | 284 |
298 #endif // V8_INCREMENTAL_MARKING_H_ | 285 #endif // V8_INCREMENTAL_MARKING_H_ |
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