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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 <stddef.h>
#include <stdint.h>
#include "base/compiler_specific.h"
#include "base/macros.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::Local<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::Local<v8::Value> val,
ArrayBuffer* out);
};
class GIN_EXPORT ArrayBufferView {
public:
ArrayBufferView();
ArrayBufferView(v8::Isolate* isolate, v8::Local<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::Local<v8::Value> val,
ArrayBufferView* out);
};
} // namespace gin
#endif // GIN_ARRAY_BUFFER_H_
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