V8 JavaScript shared memory prototype.

src/api.cc

 // 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 5964 matching lines @@
 v8::ArrayBuffer::Contents v8::ArrayBuffer::Externalize() {
   i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this);
   Utils::ApiCheck(!obj->is_external(),
                   "v8::ArrayBuffer::Externalize",
                   "ArrayBuffer already externalized");
   obj->set_is_external(true);
   size_t byte_length = static_cast<size_t>(obj->byte_length()->Number());
   Contents contents;
   contents.data_ = obj->backing_store();
   contents.byte_length_ = byte_length;
+  contents.shared_ = obj->is_shared();
   return contents;
 }
 
 
 void v8::ArrayBuffer::Neuter() {
   i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this);
   i::Isolate* isolate = obj->GetIsolate();
   Utils::ApiCheck(obj->is_external(),
                   "v8::ArrayBuffer::Neuter",
                   "Only externalized ArrayBuffers can be neutered");
@@ skipping 15 matching lines @@
   LOG_API(i_isolate, "v8::ArrayBuffer::New(size_t)");
   ENTER_V8(i_isolate);
   i::Handle<i::JSArrayBuffer> obj =
       i_isolate->factory()->NewJSArrayBuffer();
   i::Runtime::SetupArrayBufferAllocatingData(i_isolate, obj, byte_length);
   return Utils::ToLocal(obj);
 }
 
 
 Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, void* data,
-                                        size_t byte_length) {
+                                        size_t byte_length, bool shared) {
   i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
   EnsureInitializedForIsolate(i_isolate, "v8::ArrayBuffer::New(void*, size_t)");
   LOG_API(i_isolate, "v8::ArrayBuffer::New(void*, size_t)");
   ENTER_V8(i_isolate);
   i::Handle<i::JSArrayBuffer> obj =
       i_isolate->factory()->NewJSArrayBuffer();
-  i::Runtime::SetupArrayBuffer(i_isolate, obj, true, data, byte_length);
+  i::Runtime::SetupArrayBuffer(i_isolate, obj, true, data, byte_length, shared);
   return Utils::ToLocal(obj);
 }
 
 
 Local<ArrayBuffer> v8::ArrayBufferView::Buffer() {
   i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this);
   i::Handle<i::JSArrayBuffer> buffer;
   if (obj->IsJSDataView()) {
     i::Handle<i::JSDataView> data_view(i::JSDataView::cast(*obj));
     ASSERT(data_view->buffer()->IsJSArrayBuffer());
@@ skipping 1653 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal