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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file Buffer.h
* @brief This file contains Buffer interface and InternalBuffer, ExternalBuffer class
*/
#ifndef __ONERT_INTERP_BUFFER_H__
#define __ONERT_INTERP_BUFFER_H__
#include <memory>
#include "ir/Data.h"
namespace onert
{
namespace interp
{
/**
* @brief Interface for writable data area
*/
class Buffer : public ir::Data
{
public:
/**
* @brief Return writable pointer for data area
* @return Writable pointer
*/
virtual uint8_t *baseWritable(void) const = 0;
};
/**
* @brief Class for internally allocated data area
*/
class InternalBuffer final : public Buffer
{
public:
InternalBuffer(size_t size) : _base{std::make_unique<uint8_t[]>(size)}, _size{size}
{
// DO NOTHING
}
public:
size_t size(void) const override { return _size; }
const uint8_t *base(void) const override { return _base.get(); }
uint8_t *baseWritable(void) const override { return _base.get(); }
private:
std::unique_ptr<uint8_t[]> _base;
size_t _size;
};
/**
* @brief Class for data area from outside
*/
class ExternalBuffer final : public Buffer
{
public:
ExternalBuffer(uint8_t *base, size_t size) : _base{base}, _size{size}
{
// DO NOTHING
}
public:
size_t size(void) const override { return _size; }
const uint8_t *base(void) const override { return _base; }
uint8_t *baseWritable(void) const override { return _base; }
private:
uint8_t *_base;
size_t _size;
};
} // namespace interp
} // namespace onert
#endif // __ONERT_INTERP_BUFFER_H__
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