Heap profiler: reduce heap snapshots size.

include/v8-profiler.h

 // Copyright 2010 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 176 matching lines @@
 class HeapGraphNode;
 
 
 /**
  * HeapSnapshotEdge represents a directed connection between heap
  * graph nodes: from retaners to retained nodes.
  */
 class V8EXPORT HeapGraphEdge {
  public:
   enum Type {
-    CONTEXT_VARIABLE = 0,  // A variable from a function context.
-    ELEMENT = 1,           // An element of an array.
-    PROPERTY = 2,          // A named object property.
-    INTERNAL = 3           // A link that can't be accessed from JS,
+    kContextVariable = 0,  // A variable from a function context.
+    kElement = 1,          // An element of an array.
+    kProperty = 2,         // A named object property.
+    kInternal = 3          // A link that can't be accessed from JS,
                            // thus, its name isn't a real property name.
   };
 
   /** Returns edge type (see HeapGraphEdge::Type). */
   Type GetType() const;
 
   /**
    * Returns edge name. This can be a variable name, an element index, or
    * a property name.
    */
@@ skipping 22 matching lines @@
   const HeapGraphNode* GetToNode() const;
 };
 
 
 /**
  * HeapGraphNode represents a node in a heap graph.
  */
 class V8EXPORT HeapGraphNode {
  public:
   enum Type {
-    INTERNAL = 0,   // Internal node, a virtual one, for housekeeping.
-    ARRAY = 1,      // An array of elements.
-    STRING = 2,     // A string.
-    OBJECT = 3,     // A JS object (except for arrays and strings).
-    CODE = 4,       // Compiled code.
-    CLOSURE = 5     // Function closure.
+    kInternal = 0,   // Internal node, a virtual one, for housekeeping.
+    kArray = 1,      // An array of elements.
+    kString = 2,     // A string.
+    kObject = 3,     // A JS object (except for arrays and strings).
+    kCode = 4,       // Compiled code.
+    kClosure = 5     // Function closure.
   };
 
   /** Returns node type (see HeapGraphNode::Type). */
   Type GetType() const;
 
   /**
    * Returns node name. Depending on node's type this can be the name
    * of the constructor (for objects), the name of the function (for
    * closures), string value, or an empty string (for compiled code).
    */
   Handle<String> GetName() const;
 
   /**
    * Returns node id. For the same heap object, the id remains the same
    * across all snapshots.
    */
   uint64_t GetId() const;
 
   /** Returns node's own size, in bytes. */
   int GetSelfSize() const;
 
   /** Returns node's network (self + reachable nodes) size, in bytes. */
-  int GetTotalSize() const;
+  int GetReachableSize() const;
 
   /**
-   * Returns node's private size, in bytes. That is, the size of memory
-   * that will be reclaimed having this node collected.
+   * Returns node's retained size, in bytes. That is, self + sizes of
+   * the objects that are reachable only from this object. In other
+   * words, the size of memory that will be reclaimed having this node
+   * collected.
    */
-  int GetPrivateSize() const;
+  int GetRetainedSize() const;
 
   /** Returns child nodes count of the node. */
   int GetChildrenCount() const;
 
   /** Retrieves a child by index. */
   const HeapGraphEdge* GetChild(int index) const;
 
   /** Returns retainer nodes count of the node. */
   int GetRetainersCount() const;
 
@@ skipping 56 matching lines @@
 };
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 
 
 #endif  // V8_V8_PROFILER_H_