WIP SharedArrayBuffer implementation

src/d8.cc

 // 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.
 
 
 // Defined when linking against shared lib on Windows.
 #if defined(USING_V8_SHARED) && !defined(V8_SHARED)
 #define V8_SHARED
 #endif
 
@@ skipping 1575 matching lines @@
  public:
   virtual void* Allocate(size_t length) {
     void* data = AllocateUninitialized(length);
     return data == NULL ? data : memset(data, 0, length);
   }
   virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
   virtual void Free(void* data, size_t) { free(data); }
 };
 
 
+class ShellSharedArrayBufferAllocator
+    : public v8::SharedArrayBuffer::Allocator {
+ public:
+  virtual void* Allocate(size_t length) {
+    void* data = AllocateUninitialized(length);
+    return data == NULL ? data : memset(data, 0, length);
+  }
+  virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
+  virtual void Free(void* data, size_t) { free(data); }
+};
+
+
 class MockArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
  public:
   void* Allocate(size_t) override { return malloc(1); }
   void* AllocateUninitialized(size_t length) override { return malloc(1); }
   void Free(void* p, size_t) override { free(p); }
 };
 
 
+class MockSharedArrayBufferAllocator : public v8::SharedArrayBuffer::Allocator {
+ public:
+  void* Allocate(size_t) override { return malloc(1); }
+  void* AllocateUninitialized(size_t length) override { return malloc(1); }
+  void Free(void* p, size_t) override { free(p); }
+};
+
+
 int Shell::Main(int argc, char* argv[]) {
 #if (defined(_WIN32) || defined(_WIN64))
   UINT new_flags =
       SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX;
   UINT existing_flags = SetErrorMode(new_flags);
   SetErrorMode(existing_flags | new_flags);
 #if defined(_MSC_VER)
   _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
   _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
   _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
@@ skipping 10 matching lines @@
   v8::V8::Initialize();
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
   v8::StartupDataHandler startup_data(argv[0], options.natives_blob,
                                       options.snapshot_blob);
 #endif
   SetFlagsFromString("--trace-hydrogen-file=hydrogen.cfg");
   SetFlagsFromString("--trace-turbo-cfg-file=turbo.cfg");
   SetFlagsFromString("--redirect-code-traces-to=code.asm");
   ShellArrayBufferAllocator array_buffer_allocator;
   MockArrayBufferAllocator mock_arraybuffer_allocator;
+  ShellSharedArrayBufferAllocator shared_array_buffer_allocator;
+  MockSharedArrayBufferAllocator mock_shared_arraybuffer_allocator;
   if (options.mock_arraybuffer_allocator) {
     v8::V8::SetArrayBufferAllocator(&mock_arraybuffer_allocator);
+    v8::V8::SetSharedArrayBufferAllocator(&mock_shared_arraybuffer_allocator);
   } else {
     v8::V8::SetArrayBufferAllocator(&array_buffer_allocator);
+    v8::V8::SetSharedArrayBufferAllocator(&shared_array_buffer_allocator);
   }
   int result = 0;
   Isolate::CreateParams create_params;
 #if !defined(V8_SHARED) && defined(ENABLE_GDB_JIT_INTERFACE)
   if (i::FLAG_gdbjit) {
     create_params.code_event_handler = i::GDBJITInterface::EventHandler;
   }
 #endif
 #ifdef ENABLE_VTUNE_JIT_INTERFACE
   create_params.code_event_handler = vTune::GetVtuneCodeEventHandler();
@@ skipping 80 matching lines @@
 }
 
 }  // namespace v8
 
 
 #ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
 #endif