| // Copyright 2013 The Chromium 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 GIN_ARRAY_BUFFER_H_ | 
 | #define GIN_ARRAY_BUFFER_H_ | 
 |  | 
 | #include "base/basictypes.h" | 
 | #include "base/compiler_specific.h" | 
 | #include "base/memory/ref_counted.h" | 
 | #include "gin/converter.h" | 
 | #include "gin/gin_export.h" | 
 | #include "v8/include/v8.h" | 
 |  | 
 | namespace gin { | 
 |  | 
 | class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { | 
 |  public: | 
 |   void* Allocate(size_t length) override; | 
 |   void* AllocateUninitialized(size_t length) override; | 
 |   void Free(void* data, size_t length) override; | 
 |  | 
 |   GIN_EXPORT static ArrayBufferAllocator* SharedInstance(); | 
 | }; | 
 |  | 
 | class GIN_EXPORT ArrayBuffer { | 
 |  public: | 
 |   ArrayBuffer(); | 
 |   ArrayBuffer(v8::Isolate* isolate, v8::Handle<v8::ArrayBuffer> buffer); | 
 |   ~ArrayBuffer(); | 
 |   ArrayBuffer& operator=(const ArrayBuffer& other); | 
 |  | 
 |   void* bytes() const { return bytes_; } | 
 |   size_t num_bytes() const { return num_bytes_; } | 
 |  | 
 |  private: | 
 |   class Private; | 
 |  | 
 |   scoped_refptr<Private> private_; | 
 |   void* bytes_; | 
 |   size_t num_bytes_; | 
 |  | 
 |   DISALLOW_COPY(ArrayBuffer); | 
 | }; | 
 |  | 
 | template<> | 
 | struct GIN_EXPORT Converter<ArrayBuffer> { | 
 |   static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val, | 
 |                      ArrayBuffer* out); | 
 | }; | 
 |  | 
 | class GIN_EXPORT ArrayBufferView { | 
 |  public: | 
 |   ArrayBufferView(); | 
 |   ArrayBufferView(v8::Isolate* isolate, v8::Handle<v8::ArrayBufferView> view); | 
 |   ~ArrayBufferView(); | 
 |   ArrayBufferView& operator=(const ArrayBufferView& other); | 
 |  | 
 |   void* bytes() const { | 
 |     return static_cast<uint8_t*>(array_buffer_.bytes()) + offset_; | 
 |   } | 
 |   size_t num_bytes() const { return num_bytes_; } | 
 |  | 
 |  private: | 
 |   ArrayBuffer array_buffer_; | 
 |   size_t offset_; | 
 |   size_t num_bytes_; | 
 |  | 
 |   DISALLOW_COPY(ArrayBufferView); | 
 | }; | 
 |  | 
 | template<> | 
 | struct GIN_EXPORT Converter<ArrayBufferView> { | 
 |   static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val, | 
 |                      ArrayBufferView* out); | 
 | }; | 
 |  | 
 | }  // namespace gin | 
 |  | 
 | #endif  // GIN_ARRAY_BUFFER_H_ |