WIP SharedArrayBuffer implementation

src/runtime/runtime.h

 // Copyright 2012 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.
 
 #ifndef V8_RUNTIME_RUNTIME_H_
 #define V8_RUNTIME_RUNTIME_H_
 
 #include "src/allocation.h"
 #include "src/objects.h"
 #include "src/zone.h"
@@ skipping 598 matching lines @@
   F(HasFixedUint16Elements, 1, 1)             \
   F(HasFixedInt16Elements, 1, 1)              \
   F(HasFixedUint32Elements, 1, 1)             \
   F(HasFixedInt32Elements, 1, 1)              \
   F(HasFixedFloat32Elements, 1, 1)            \
   F(HasFixedFloat64Elements, 1, 1)            \
   F(HasFixedUint8ClampedElements, 1, 1)
 
 
 #define FOR_EACH_INTRINSIC_TYPEDARRAY(F)     \
-  F(ArrayBufferInitialize, 2, 1)             \
+  F(ArrayBufferInitialize, 3, 1)             \
   F(ArrayBufferGetByteLength, 1, 1)          \
   F(ArrayBufferSliceImpl, 3, 1)              \
   F(ArrayBufferIsView, 1, 1)                 \
   F(ArrayBufferNeuter, 1, 1)                 \
-  F(TypedArrayInitialize, 5, 1)              \
+  F(ArrayBufferIsShared, 1, 1)               \
+  F(TypedArrayInitialize, 6, 1)              \
   F(TypedArrayInitializeFromArrayLike, 4, 1) \
   F(ArrayBufferViewGetByteLength, 1, 1)      \
   F(ArrayBufferViewGetByteOffset, 1, 1)      \
   F(TypedArrayGetLength, 1, 1)               \
   F(DataViewGetBuffer, 1, 1)                 \
   F(TypedArrayGetBuffer, 1, 1)               \
   F(TypedArraySetFastCases, 3, 1)            \
   F(TypedArrayMaxSizeInHeap, 0, 1)           \
   F(IsTypedArray, 1, 1)                      \
   F(DataViewInitialize, 4, 1)                \
@@ skipping 156 matching lines @@
 
   MUST_USE_RESULT static MaybeHandle<Object> GetPrototype(
       Isolate* isolate, Handle<Object> object);
 
   MUST_USE_RESULT static MaybeHandle<Name> ToName(Isolate* isolate,
                                                   Handle<Object> key);
 
   static void SetupArrayBuffer(Isolate* isolate,
                                Handle<JSArrayBuffer> array_buffer,
                                bool is_external, void* data,
-                               size_t allocated_length);
+                               size_t allocated_length, bool is_shared = false);
 
   static bool SetupArrayBufferAllocatingData(Isolate* isolate,
                                              Handle<JSArrayBuffer> array_buffer,
                                              size_t allocated_length,
-                                             bool initialize = true);
+                                             bool initialize = true,
+                                             bool is_shared = false);
 
   static void NeuterArrayBuffer(Handle<JSArrayBuffer> array_buffer);
 
   static void FreeArrayBuffer(Isolate* isolate,
                               JSArrayBuffer* phantom_array_buffer);
 
   static int FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index);
 
   enum TypedArrayId {
     // arrayIds below should be synchromized with typedarray.js natives.
@@ skipping 39 matching lines @@
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 STATIC_ASSERT(LANGUAGE_END == 3);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 2> {};
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_RUNTIME_RUNTIME_H_