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 34namespace v8 { 35namespace internal { 36 37class HeapSnapshot; 38class HeapSnapshotsCollection; 39 40#define HEAP_PROFILE(heap, call) \ 41 do { \ 42 v8::internal::HeapProfiler* profiler = heap->isolate()->heap_profiler(); \ 43 if (profiler != NULL && profiler->is_profiling()) { \ 44 profiler->call; \ 45 } \ 46 } while (false) 47 48class HeapProfiler { 49 public: 50 explicit HeapProfiler(Heap* heap); 51 ~HeapProfiler(); 52 53 size_t GetMemorySizeUsedByProfiler(); 54 55 HeapSnapshot* TakeSnapshot( 56 const char* name, 57 v8::ActivityControl* control, 58 v8::HeapProfiler::ObjectNameResolver* resolver); 59 HeapSnapshot* TakeSnapshot( 60 String* name, 61 v8::ActivityControl* control, 62 v8::HeapProfiler::ObjectNameResolver* resolver); 63 64 void StartHeapObjectsTracking(); 65 void StopHeapObjectsTracking(); 66 SnapshotObjectId PushHeapObjectsStats(OutputStream* stream); 67 int GetSnapshotsCount(); 68 HeapSnapshot* GetSnapshot(int index); 69 SnapshotObjectId GetSnapshotObjectId(Handle<Object> obj); 70 void DeleteAllSnapshots(); 71 72 void ObjectMoveEvent(Address from, Address to); 73 74 void DefineWrapperClass( 75 uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback); 76 77 v8::RetainedObjectInfo* ExecuteWrapperClassCallback(uint16_t class_id, 78 Object** wrapper); 79 INLINE(bool is_profiling()) { 80 return snapshots_->is_tracking_objects(); 81 } 82 83 void SetRetainedObjectInfo(UniqueId id, RetainedObjectInfo* info); 84 85 private: 86 Heap* heap() const { return snapshots_->heap(); } 87 88 HeapSnapshotsCollection* snapshots_; 89 unsigned next_snapshot_uid_; 90 List<v8::HeapProfiler::WrapperInfoCallback> wrapper_callbacks_; 91}; 92 93} } // namespace v8::internal 94 95#endif // V8_HEAP_PROFILER_H_ 96