1 // Copyright 2009-2010 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef V8_HEAP_PROFILER_H_ 29 #define V8_HEAP_PROFILER_H_ 30 31 #include "heap-snapshot-generator-inl.h" 32 #include "isolate.h" 33 #include "smart-pointers.h" 34 35 namespace v8 { 36 namespace internal { 37 38 class HeapSnapshot; 39 40 class HeapProfiler { 41 public: 42 explicit HeapProfiler(Heap* heap); 43 ~HeapProfiler(); 44 45 size_t GetMemorySizeUsedByProfiler(); 46 47 HeapSnapshot* TakeSnapshot( 48 const char* name, 49 v8::ActivityControl* control, 50 v8::HeapProfiler::ObjectNameResolver* resolver); 51 HeapSnapshot* TakeSnapshot( 52 String* name, 53 v8::ActivityControl* control, 54 v8::HeapProfiler::ObjectNameResolver* resolver); 55 56 void StartHeapObjectsTracking(bool track_allocations); 57 void StopHeapObjectsTracking(); allocation_tracker()58 AllocationTracker* allocation_tracker() { return *allocation_tracker_; } heap_object_map()59 HeapObjectsMap* heap_object_map() { return *ids_; } names()60 StringsStorage* names() { return *names_; } 61 62 SnapshotObjectId PushHeapObjectsStats(OutputStream* stream); 63 int GetSnapshotsCount(); 64 HeapSnapshot* GetSnapshot(int index); 65 SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj); 66 void DeleteAllSnapshots(); 67 void RemoveSnapshot(HeapSnapshot* snapshot); 68 69 void ObjectMoveEvent(Address from, Address to, int size); 70 71 void AllocationEvent(Address addr, int size); 72 73 void UpdateObjectSizeEvent(Address addr, int size); 74 75 void DefineWrapperClass( 76 uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback); 77 78 v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id, 79 Object** wrapper); 80 void SetRetainedObjectInfo(UniqueId id, RetainedObjectInfo* info); 81 is_tracking_object_moves()82 bool is_tracking_object_moves() const { return is_tracking_object_moves_; } is_tracking_allocations()83 bool is_tracking_allocations() { return !allocation_tracker_.is_empty(); } 84 85 Handle<HeapObject> FindHeapObjectById(SnapshotObjectId id); 86 87 private: heap()88 Heap* heap() const { return ids_->heap(); } 89 90 // Mapping from HeapObject addresses to objects' uids. 91 SmartPointer<HeapObjectsMap> ids_; 92 List<HeapSnapshot*> snapshots_; 93 SmartPointer<StringsStorage> names_; 94 unsigned next_snapshot_uid_; 95 List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_; 96 SmartPointer<AllocationTracker> allocation_tracker_; 97 bool is_tracking_object_moves_; 98 }; 99 100 } } // namespace v8::internal 101 102 #endif // V8_HEAP_PROFILER_H_ 103