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+/*
+ * Copyright (c) 2020 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 <cstdint>
+#include <map>
+
+namespace arm_compute
+{
+// Forward declaration
+class ITensor;
+
+/** Tensor packing service */
+class ITensorPack
+{
+private:
+ struct PackElement
+ {
+ PackElement() = default;
+ PackElement(ITensor *tensor)
+ : tensor(tensor), ctensor(nullptr)
+ {
+ }
+ PackElement(const ITensor *ctensor)
+ : tensor(nullptr), ctensor(ctensor)
+ {
+ }
+
+ ITensor *tensor{ nullptr };
+ const ITensor *ctensor{ nullptr };
+ };
+
+public:
+ /** Default Constructor */
+ ITensorPack() = default;
+ /** 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);
+ /** 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;
+ /** 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::map<unsigned int, PackElement> _pack{}; /**< Container with the packed tensors */
+};
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_ITENSORPACK_H */