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/*
* Copyright (c) 2020-2021 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef ARM_COMPUTE_ITENSORPACK_H
#define ARM_COMPUTE_ITENSORPACK_H
#include "arm_compute/core/experimental/Types.h"
#include <cstddef>
#include <cstdint>
#include <unordered_map>
namespace arm_compute
{
// Forward declaration
class ITensor;
/** Tensor packing service */
class ITensorPack
{
public:
struct PackElement
{
PackElement() = default;
PackElement(int id, ITensor *tensor)
: id(id), tensor(tensor), ctensor(nullptr)
{
}
PackElement(int id, const ITensor *ctensor)
: id(id), tensor(nullptr), ctensor(ctensor)
{
}
int id{ -1 };
ITensor *tensor{ nullptr };
const ITensor *ctensor{ nullptr };
};
public:
/** Default Constructor */
ITensorPack() = default;
/** Initializer list Constructor */
ITensorPack(std::initializer_list<PackElement> l);
/** Add tensor to the pack
*
* @param[in] id ID/type of the tensor to add
* @param[in] tensor Tensor to add
*/
void add_tensor(int id, ITensor *tensor);
/** Add const tensor to the pack
*
* @param[in] id ID/type of the tensor to add
* @param[in] tensor Tensor to add
*/
void add_tensor(int id, const ITensor *tensor);
/** Add const tensor to the pack
*
* @param[in] id ID/type of the tensor to add
* @param[in] tensor Tensor to add
*/
void add_const_tensor(int id, const ITensor *tensor);
/** Get tensor of a given id from the pac
*
* @param[in] id ID of tensor to extract
*
* @return The pointer to the tensor if exist and is non-const else nullptr
*/
ITensor *get_tensor(int id);
/** Get constant tensor of a given id
*
* @param[in] id ID of tensor to extract
*
* @return The pointer to the tensor if exist and is const else nullptr
*/
const ITensor *get_const_tensor(int id) const;
/** Remove the tensor stored with the given id
*
* @param[in] id ID of tensor to remove
*/
void remove_tensor(int id);
/** Pack size accessor
*
* @return Number of tensors registered to the pack
*/
size_t size() const;
/** Checks if pack is empty
*
* @return True if empty else false
*/
bool empty() const;
private:
std::unordered_map<int, PackElement> _pack{}; /**< Container with the packed tensors */
};
} // namespace arm_compute
#endif /*ARM_COMPUTE_ITENSORPACK_H */
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