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// Copyright 2009-2010 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_HEAP_PROFILER_H_
#define V8_HEAP_PROFILER_H_
#include "src/heap-snapshot-generator-inl.h"
#include "src/isolate.h"
#include "src/smart-pointers.h"
namespace v8 {
namespace internal {
class HeapSnapshot;
class HeapProfiler {
public:
explicit HeapProfiler(Heap* heap);
~HeapProfiler();
size_t GetMemorySizeUsedByProfiler();
HeapSnapshot* TakeSnapshot(
v8::ActivityControl* control,
v8::HeapProfiler::ObjectNameResolver* resolver);
void StartHeapObjectsTracking(bool track_allocations);
void StopHeapObjectsTracking();
AllocationTracker* allocation_tracker() const {
return allocation_tracker_.get();
}
HeapObjectsMap* heap_object_map() const { return ids_.get(); }
StringsStorage* names() const { return names_.get(); }
SnapshotObjectId PushHeapObjectsStats(OutputStream* stream,
int64_t* timestamp_us);
int GetSnapshotsCount();
HeapSnapshot* GetSnapshot(int index);
SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj);
void DeleteAllSnapshots();
void RemoveSnapshot(HeapSnapshot* snapshot);
void ObjectMoveEvent(Address from, Address to, int size);
void AllocationEvent(Address addr, int size);
void UpdateObjectSizeEvent(Address addr, int size);
void DefineWrapperClass(
uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback);
v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id,
Object** wrapper);
void SetRetainedObjectInfo(UniqueId id, RetainedObjectInfo* info);
bool is_tracking_object_moves() const { return is_tracking_object_moves_; }
bool is_tracking_allocations() const {
return !allocation_tracker_.is_empty();
}
Handle<HeapObject> FindHeapObjectById(SnapshotObjectId id);
void ClearHeapObjectMap();
private:
Heap* heap() const { return ids_->heap(); }
// Mapping from HeapObject addresses to objects' uids.
SmartPointer<HeapObjectsMap> ids_;
List<HeapSnapshot*> snapshots_;
SmartPointer<StringsStorage> names_;
List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_;
SmartPointer<AllocationTracker> allocation_tracker_;
bool is_tracking_object_moves_;
};
} } // namespace v8::internal
#endif // V8_HEAP_PROFILER_H_
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