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1 // Copyright 2009-2010 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef V8_HEAP_PROFILER_H_ | |
6 #define V8_HEAP_PROFILER_H_ | |
7 | |
8 #include "src/base/smart-pointers.h" | |
9 #include "src/isolate.h" | |
10 #include "src/list.h" | |
11 | |
12 namespace v8 { | |
13 namespace internal { | |
14 | |
15 // Forward declarations. | |
16 class AllocationTracker; | |
17 class HeapObjectsMap; | |
18 class HeapSnapshot; | |
19 class StringsStorage; | |
20 | |
21 class HeapProfiler { | |
22 public: | |
23 explicit HeapProfiler(Heap* heap); | |
24 ~HeapProfiler(); | |
25 | |
26 size_t GetMemorySizeUsedByProfiler(); | |
27 | |
28 HeapSnapshot* TakeSnapshot( | |
29 v8::ActivityControl* control, | |
30 v8::HeapProfiler::ObjectNameResolver* resolver); | |
31 | |
32 void StartHeapObjectsTracking(bool track_allocations); | |
33 void StopHeapObjectsTracking(); | |
34 AllocationTracker* allocation_tracker() const { | |
35 return allocation_tracker_.get(); | |
36 } | |
37 HeapObjectsMap* heap_object_map() const { return ids_.get(); } | |
38 StringsStorage* names() const { return names_.get(); } | |
39 | |
40 SnapshotObjectId PushHeapObjectsStats(OutputStream* stream, | |
41 int64_t* timestamp_us); | |
42 int GetSnapshotsCount(); | |
43 HeapSnapshot* GetSnapshot(int index); | |
44 SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj); | |
45 void DeleteAllSnapshots(); | |
46 void RemoveSnapshot(HeapSnapshot* snapshot); | |
47 | |
48 void ObjectMoveEvent(Address from, Address to, int size); | |
49 | |
50 void AllocationEvent(Address addr, int size); | |
51 | |
52 void UpdateObjectSizeEvent(Address addr, int size); | |
53 | |
54 void DefineWrapperClass( | |
55 uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback); | |
56 | |
57 v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id, | |
58 Object** wrapper); | |
59 void SetRetainedObjectInfo(UniqueId id, RetainedObjectInfo* info); | |
60 | |
61 bool is_tracking_object_moves() const { return is_tracking_object_moves_; } | |
62 bool is_tracking_allocations() const { | |
63 return !allocation_tracker_.is_empty(); | |
64 } | |
65 | |
66 Handle<HeapObject> FindHeapObjectById(SnapshotObjectId id); | |
67 void ClearHeapObjectMap(); | |
68 | |
69 private: | |
70 Heap* heap() const; | |
71 | |
72 // Mapping from HeapObject addresses to objects' uids. | |
73 base::SmartPointer<HeapObjectsMap> ids_; | |
74 List<HeapSnapshot*> snapshots_; | |
75 base::SmartPointer<StringsStorage> names_; | |
76 List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_; | |
77 base::SmartPointer<AllocationTracker> allocation_tracker_; | |
78 bool is_tracking_object_moves_; | |
79 base::Mutex profiler_mutex_; | |
80 }; | |
81 | |
82 } } // namespace v8::internal | |
83 | |
84 #endif // V8_HEAP_PROFILER_H_ | |
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