V8 JavaScript shared memory prototype.

include/v8.h

 // Copyright 2012 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 2751 matching lines @@
    * returns an instance of this class, populated, with a pointer to data
    * and byte length.
    *
    * The Data pointer of ArrayBuffer::Contents is always allocated with
    * Allocator::Allocate that is set with V8::SetArrayBufferAllocator.
    *
    * This API is experimental and may change significantly.
    */
   class V8_EXPORT Contents { // NOLINT
    public:
-    Contents() : data_(NULL), byte_length_(0) {}
+    Contents() : data_(NULL), byte_length_(0), shared_(false) {}
 
     void* Data() const { return data_; }
     size_t ByteLength() const { return byte_length_; }
+    bool Shared() const { return shared_; }
 
    private:
     void* data_;
     size_t byte_length_;
+    bool shared_;
 
     friend class ArrayBuffer;
   };
 
 
   /**
    * Data length in bytes.
    */
   size_t ByteLength() const;
 
   /**
    * Create a new ArrayBuffer. Allocate |byte_length| bytes.
    * Allocated memory will be owned by a created ArrayBuffer and
    * will be deallocated when it is garbage-collected,
    * unless the object is externalized.
    */
   static Local<ArrayBuffer> New(Isolate* isolate, size_t byte_length);
 
   /**
    * Create a new ArrayBuffer over an existing memory block.
    * The created array buffer is immediately in externalized state.
    * The memory block will not be reclaimed when a created ArrayBuffer
    * is garbage-collected.
    */
   static Local<ArrayBuffer> New(Isolate* isolate, void* data,
-                                size_t byte_length);
+                                size_t byte_length, bool shared = false);
 
   /**
    * Returns true if ArrayBuffer is extrenalized, that is, does not
    * own its memory block.
    */
   bool IsExternal() const;
 
   /**
    * Neuters this ArrayBuffer and all its views (typed arrays).
    * Neutering sets the byte length of the buffer and all typed arrays to zero,
@@ skipping 3870 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_