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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_HEAP_INCREMENTAL_MARKING_H_ | 5 #ifndef V8_HEAP_INCREMENTAL_MARKING_H_ |
6 #define V8_HEAP_INCREMENTAL_MARKING_H_ | 6 #define V8_HEAP_INCREMENTAL_MARKING_H_ |
7 | 7 |
8 #include "src/cancelable-task.h" | 8 #include "src/cancelable-task.h" |
9 #include "src/execution.h" | 9 #include "src/execution.h" |
10 #include "src/heap/heap.h" | 10 #include "src/heap/heap.h" |
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65 inline bool IsReadyToOverApproximateWeakClosure() const { | 65 inline bool IsReadyToOverApproximateWeakClosure() const { |
66 return request_type_ == FINALIZATION && !finalize_marking_completed_; | 66 return request_type_ == FINALIZATION && !finalize_marking_completed_; |
67 } | 67 } |
68 | 68 |
69 GCRequestType request_type() const { return request_type_; } | 69 GCRequestType request_type() const { return request_type_; } |
70 | 70 |
71 void reset_request_type() { request_type_ = NONE; } | 71 void reset_request_type() { request_type_ = NONE; } |
72 | 72 |
73 bool CanBeActivated(); | 73 bool CanBeActivated(); |
74 | 74 |
| 75 bool ShouldActivateEvenWithoutIdleNotification(); |
| 76 |
75 bool WasActivated(); | 77 bool WasActivated(); |
76 | 78 |
77 void Start(GarbageCollectionReason gc_reason); | 79 void Start(GarbageCollectionReason gc_reason); |
78 | 80 |
79 void FinalizeIncrementally(); | 81 void FinalizeIncrementally(); |
80 | 82 |
81 void UpdateMarkingDequeAfterScavenge(); | 83 void UpdateMarkingDequeAfterScavenge(); |
82 | 84 |
83 void Hurry(); | 85 void Hurry(); |
84 | 86 |
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108 // heavy (color-checking) write barriers have been invoked. | 110 // heavy (color-checking) write barriers have been invoked. |
109 static const size_t kAllocatedThreshold = 64 * KB; | 111 static const size_t kAllocatedThreshold = 64 * KB; |
110 | 112 |
111 static const int kStepSizeInMs = 1; | 113 static const int kStepSizeInMs = 1; |
112 static const int kMaxStepSizeInMs = 5; | 114 static const int kMaxStepSizeInMs = 5; |
113 | 115 |
114 // This is the upper bound for how many times we allow finalization of | 116 // This is the upper bound for how many times we allow finalization of |
115 // incremental marking to be postponed. | 117 // incremental marking to be postponed. |
116 static const int kMaxIdleMarkingDelayCounter = 3; | 118 static const int kMaxIdleMarkingDelayCounter = 3; |
117 | 119 |
118 #ifndef DEBUG | |
119 static const intptr_t kActivationThreshold = 8 * MB; | |
120 #else | |
121 static const intptr_t kActivationThreshold = 0; | |
122 #endif | |
123 | |
124 void FinalizeSweeping(); | 120 void FinalizeSweeping(); |
125 | 121 |
126 size_t Step(size_t bytes_to_process, CompletionAction action, | 122 size_t Step(size_t bytes_to_process, CompletionAction action, |
127 ForceCompletionAction completion, StepOrigin step_origin); | 123 ForceCompletionAction completion, StepOrigin step_origin); |
128 | 124 |
129 inline void RestartIfNotMarking(); | 125 inline void RestartIfNotMarking(); |
130 | 126 |
131 static void RecordWriteFromCode(HeapObject* obj, Object** slot, | 127 static void RecordWriteFromCode(HeapObject* obj, Object** slot, |
132 Isolate* isolate); | 128 Isolate* isolate); |
133 | 129 |
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299 IncrementalMarkingJob incremental_marking_job_; | 295 IncrementalMarkingJob incremental_marking_job_; |
300 Observer new_generation_observer_; | 296 Observer new_generation_observer_; |
301 Observer old_generation_observer_; | 297 Observer old_generation_observer_; |
302 | 298 |
303 DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking); | 299 DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking); |
304 }; | 300 }; |
305 } // namespace internal | 301 } // namespace internal |
306 } // namespace v8 | 302 } // namespace v8 |
307 | 303 |
308 #endif // V8_HEAP_INCREMENTAL_MARKING_H_ | 304 #endif // V8_HEAP_INCREMENTAL_MARKING_H_ |
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