Implement heap snapshots serialization into JSON. API is designed

include/v8.h

 // Copyright 2007-2009 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 3178 matching lines @@
   bool top_level_;
 
   static bool active_;
 
   // Disallow copying and assigning.
   Locker(const Locker&);
   void operator=(const Locker&);
 };
 
 
+/**
+ * An interface for exporting data from V8, using "push" model.
+ */
+class V8EXPORT OutputStream {
+public:
+  enum OutputEncoding {
+    kAscii = 0  // 7-bit ASCII.
+  };
+  virtual ~OutputStream() {}
+  /** Notify about the end of stream. */
+  virtual void EndOfStream() = 0;
+  /** Get preferred output chunk size. Called only once. */
+  virtual int GetChunkSize() { return 1024; }
+  /** Get preferred output encoding. Called only once. */
+  virtual OutputEncoding GetOutputEncoding() { return kAscii; }
+  /** Writes the next chunk of snapshot data into the stream. */
+  virtual void WriteAsciiChunk(char* data, int size) = 0;
+};
+
+
 
 // --- I m p l e m e n t a t i o n ---
 
 
 namespace internal {
 
 
 // Tag information for HeapObject.
 const int kHeapObjectTag = 1;
 const int kHeapObjectTagSize = 2;
@@ skipping 440 matching lines @@
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_