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// 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" // For scoped_refptr only!
#include "gin/converter.h"
#include "v8/include/v8.h"
namespace gin {
class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
public:
virtual void* Allocate(size_t length) OVERRIDE;
virtual void* AllocateUninitialized(size_t length) OVERRIDE;
virtual void Free(void* data, size_t length) OVERRIDE;
static ArrayBufferAllocator* SharedInstance();
};
class ArrayBuffer {
public:
explicit ArrayBuffer(v8::Isolate* isolate);
ArrayBuffer(v8::Isolate* isolate, v8::Handle<v8::ArrayBuffer> buffer);
~ArrayBuffer();
void* bytes() const { return bytes_; }
size_t num_bytes() const { return num_bytes_; }
v8::Isolate* isolate() const { return isolate_; }
private:
class Private;
v8::Isolate* isolate_;
scoped_refptr<Private> private_;
void* bytes_;
size_t num_bytes_;
};
template<>
struct Converter<ArrayBuffer> {
static bool FromV8(v8::Handle<v8::Value> val,
ArrayBuffer* out);
};
class ArrayBufferView {
public:
explicit ArrayBufferView(v8::Isolate* isolate);
ArrayBufferView(v8::Isolate* isolate, v8::Handle<v8::ArrayBufferView> view);
~ArrayBufferView();
void* bytes() const {
return static_cast<uint8_t*>(array_buffer_.bytes()) + offset_;
}
size_t num_bytes() const { return num_bytes_; }
v8::Isolate* isolate() const { return array_buffer_.isolate(); }
private:
ArrayBuffer array_buffer_;
size_t offset_;
size_t num_bytes_;
};
template<>
struct Converter<ArrayBufferView> {
static bool FromV8(v8::Handle<v8::Value> val,
ArrayBufferView* out);
};
} // namespace gin
#endif // GIN_ARRAY_BUFFER_H_