Version 2.3.10...

src/heap-profiler.h

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 38 matching lines @@
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 // The HeapProfiler writes data to the log files, which can be postprocessed
 // to generate .hp files for use by the GHC/Valgrind tool hp2ps.
 class HeapProfiler {
  public:
   static void Setup();
   static void TearDown();
 
 #ifdef ENABLE_LOGGING_AND_PROFILING
-  static HeapSnapshot* TakeSnapshot(const char* name);
-  static HeapSnapshot* TakeSnapshot(String* name);
+  static HeapSnapshot* TakeSnapshot(const char* name, int type);
+  static HeapSnapshot* TakeSnapshot(String* name, int type);
   static int GetSnapshotsCount();
   static HeapSnapshot* GetSnapshot(int index);
   static HeapSnapshot* FindSnapshot(unsigned uid);
 
   static void ObjectMoveEvent(Address from, Address to);
 
   static INLINE(bool is_profiling()) {
     return singleton_ != NULL && singleton_->snapshots_->is_tracking_objects();
   }
 
   // Obsolete interface.
   // Write a single heap sample to the log file.
   static void WriteSample();
 
  private:
   HeapProfiler();
   ~HeapProfiler();
-  HeapSnapshot* TakeSnapshotImpl(const char* name);
-  HeapSnapshot* TakeSnapshotImpl(String* name);
-
-  // Obsolete interface.
-  // Update the array info with stats from obj.
-  static void CollectStats(HeapObject* obj, HistogramInfo* info);
+  HeapSnapshot* TakeSnapshotImpl(const char* name, int type);
+  HeapSnapshot* TakeSnapshotImpl(String* name, int type);
 
   HeapSnapshotsCollection* snapshots_;
   unsigned next_snapshot_uid_;
 
   static HeapProfiler* singleton_;
 #endif  // ENABLE_LOGGING_AND_PROFILING
 };
 
 
 #ifdef ENABLE_LOGGING_AND_PROFILING
@@ skipping 31 matching lines @@
         (a.instance_ == b.instance_ ? 0 : (a.instance_ < b.instance_ ? -1 : 1))
         : cons_cmp;
   }
   static int Compare(const JSObjectsCluster* a, const JSObjectsCluster* b) {
     return Compare(*a, *b);
   }
 
   bool is_null() const { return constructor_ == NULL; }
   bool can_be_coarsed() const { return instance_ != NULL; }
   String* constructor() const { return constructor_; }
+  Object* instance() const { return instance_; }
 
+  const char* GetSpecialCaseName() const;
   void Print(StringStream* accumulator) const;
   // Allows null clusters to be printed.
   void DebugPrint(StringStream* accumulator) const;
 
  private:
   static String* FromSpecialCase(SpecialCase special) {
     // We use symbols that are illegal JS identifiers to identify special cases.
     // Their actual value is irrelevant for us.
     switch (special) {
       case ROOTS: return Heap::result_symbol();
@@ skipping 26 matching lines @@
 // ConstructorHeapProfile is responsible for gathering and logging
 // "constructor profile" of JS objects allocated on heap.
 // It is run during garbage collection cycle, thus it doesn't need
 // to use handles.
 class ConstructorHeapProfile BASE_EMBEDDED {
  public:
   ConstructorHeapProfile();
   virtual ~ConstructorHeapProfile() {}
   void CollectStats(HeapObject* obj);
   void PrintStats();
+
+  template<class Callback>
+  void ForEach(Callback* callback) { js_objects_info_tree_.ForEach(callback); }
   // Used by ZoneSplayTree::ForEach. Made virtual to allow overriding in tests.
   virtual void Call(const JSObjectsCluster& cluster,
                     const NumberAndSizeInfo& number_and_size);
 
  private:
   ZoneScope zscope_;
   JSObjectsClusterTree js_objects_info_tree_;
 };
 
 
@@ skipping 83 matching lines @@
   ClusterBackRefs* current_pair_;
   JSObjectsRetainerTree* current_set_;
   const JSObjectsCluster* self_;
 };
 
 
 // RetainerHeapProfile is responsible for gathering and logging
 // "retainer profile" of JS objects allocated on heap.
 // It is run during garbage collection cycle, thus it doesn't need
 // to use handles.
+class RetainerTreeAggregator;
+
 class RetainerHeapProfile BASE_EMBEDDED {
  public:
   class Printer {
    public:
     virtual ~Printer() {}
     virtual void PrintRetainers(const JSObjectsCluster& cluster,
                                 const StringStream& retainers) = 0;
   };
 
   RetainerHeapProfile();
+  ~RetainerHeapProfile();
+
+  RetainerTreeAggregator* aggregator() { return aggregator_; }
+  ClustersCoarser* coarser() { return &coarser_; }
+  JSObjectsRetainerTree* retainers_tree() { return &retainers_tree_; }
+
   void CollectStats(HeapObject* obj);
+  void CoarseAndAggregate();
   void PrintStats();
   void DebugPrintStats(Printer* printer);
   void StoreReference(const JSObjectsCluster& cluster, HeapObject* ref);
 
  private:
   ZoneScope zscope_;
   JSObjectsRetainerTree retainers_tree_;
   ClustersCoarser coarser_;
+  RetainerTreeAggregator* aggregator_;
+};
+
+
+class AggregatedHeapSnapshot {
+ public:
+  AggregatedHeapSnapshot();
+  ~AggregatedHeapSnapshot();
+
+  HistogramInfo* info() { return info_; }
+  ConstructorHeapProfile* js_cons_profile() { return &js_cons_profile_; }
+  RetainerHeapProfile* js_retainer_profile() { return &js_retainer_profile_; }
+
+ private:
+  HistogramInfo* info_;
+  ConstructorHeapProfile js_cons_profile_;
+  RetainerHeapProfile js_retainer_profile_;
+};
+
+
+class HeapEntriesMap;
+class HeapSnapshot;
+
+class AggregatedHeapSnapshotGenerator {
+ public:
+  explicit AggregatedHeapSnapshotGenerator(AggregatedHeapSnapshot* snapshot);
+  void GenerateSnapshot();
+  void FillHeapSnapshot(HeapSnapshot* snapshot);
+
+  static const int kAllStringsType = LAST_TYPE + 1;
+
+ private:
+  void CalculateStringsStats();
+  void CollectStats(HeapObject* obj);
+  template<class Iterator>
+  void IterateRetainers(HeapEntriesMap* entries_map);
+
+  AggregatedHeapSnapshot* agg_snapshot_;
 };
 
 
 class ProducerHeapProfile : public AllStatic {
  public:
   static void Setup();
   static void RecordJSObjectAllocation(Object* obj) {
     if (FLAG_log_producers) DoRecordJSObjectAllocation(obj);
   }
 
  private:
   static void DoRecordJSObjectAllocation(Object* obj);
   static bool can_log_;
 };
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_PROFILER_H_