Pass ArrayBuffer::Allocator via Isolate::CreateParams

src/api.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.
 
 #include "src/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 302 matching lines @@
   script->Run();
   if (i::FLAG_profile_deserialization) {
     i::PrintF("Executing custom snapshot script took %0.3f ms\n",
               timer.Elapsed().InMillisecondsF());
   }
   timer.Stop();
   return !try_catch.HasCaught();
 }
 
 
+namespace {
+
+class ArrayBufferAllocator : public v8::ArrayBuffer::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); }
+};
+
+}  // namespace
+
+
 StartupData V8::CreateSnapshotDataBlob(const char* custom_source) {
   i::Isolate* internal_isolate = new i::Isolate(true);
+  ArrayBufferAllocator allocator;
+  internal_isolate->set_array_buffer_allocator(&allocator);
   Isolate* isolate = reinterpret_cast<Isolate*>(internal_isolate);
   StartupData result = {NULL, 0};
   {
     base::ElapsedTimer timer;
     timer.Start();
     Isolate::Scope isolate_scope(isolate);
     internal_isolate->Init(NULL);
     Persistent<Context> context;
     i::Snapshot::Metadata metadata;
     {
@@ skipping 6400 matching lines @@
   }
 }
 
 
 Isolate* Isolate::GetCurrent() {
   i::Isolate* isolate = i::Isolate::Current();
   return reinterpret_cast<Isolate*>(isolate);
 }
 
 
+Isolate* Isolate::New() {
+  Isolate::CreateParams create_params;
+  return New(create_params);
+}
+
+
 Isolate* Isolate::New(const Isolate::CreateParams& params) {
   i::Isolate* isolate = new i::Isolate(false);
   Isolate* v8_isolate = reinterpret_cast<Isolate*>(isolate);
+  if (params.array_buffer_allocator != NULL) {
+    isolate->set_array_buffer_allocator(params.array_buffer_allocator);
+  } else {
+    isolate->set_array_buffer_allocator(i::V8::ArrayBufferAllocator());
+  }
   if (params.snapshot_blob != NULL) {
     isolate->set_snapshot_blob(params.snapshot_blob);
   } else {
     isolate->set_snapshot_blob(i::Snapshot::DefaultSnapshotBlob());
   }
   if (params.entry_hook) {
     isolate->set_function_entry_hook(params.entry_hook);
   }
   if (params.code_event_handler) {
     isolate->InitializeLoggingAndCounters();
@@ skipping 1254 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