Implement SharedArrayBuffer

src/factory.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 1699 matching lines @@
   JSFunction::EnsureHasInitialMap(function);
   Handle<Map> map(function->initial_map());
   DCHECK(map->instance_type() == JS_GENERATOR_OBJECT_TYPE);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObjectFromMap(*map),
       JSGeneratorObject);
 }
 
 
-Handle<JSArrayBuffer> Factory::NewJSArrayBuffer() {
+Handle<JSArrayBuffer> Factory::NewJSArrayBuffer(SharedFlag shared) {
   Handle<JSFunction> array_buffer_fun(
-      isolate()->native_context()->array_buffer_fun());
+      shared == SharedFlag::kShared
+          ? isolate()->native_context()->shared_array_buffer_fun()
+          : isolate()->native_context()->array_buffer_fun());
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObject(*array_buffer_fun),
       JSArrayBuffer);
 }
 
 
 Handle<JSDataView> Factory::NewJSDataView() {
   Handle<JSFunction> data_view_fun(
       isolate()->native_context()->data_view_fun());
@@ skipping 194 matching lines @@
   size_t byte_length = number_of_elements * element_size;
 
   obj->set_byte_offset(Smi::FromInt(0));
   i::Handle<i::Object> byte_length_object =
       isolate()->factory()->NewNumberFromSize(byte_length);
   obj->set_byte_length(*byte_length_object);
   Handle<Object> length_object = NewNumberFromSize(number_of_elements);
   obj->set_length(*length_object);
 
   Handle<JSArrayBuffer> buffer = isolate()->factory()->NewJSArrayBuffer();
-  Runtime::SetupArrayBuffer(isolate(), buffer, true, NULL, byte_length);
+  Runtime::SetupArrayBuffer(isolate(), buffer, true, NULL, byte_length,
+                            SharedFlag::kNotShared);
   obj->set_buffer(*buffer);
   Handle<FixedTypedArrayBase> elements =
       isolate()->factory()->NewFixedTypedArray(
           static_cast<int>(number_of_elements), array_type);
   obj->set_elements(*elements);
   return obj;
 }
 
 
 Handle<JSDataView> Factory::NewJSDataView(Handle<JSArrayBuffer> buffer,
@@ skipping 492 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal