1 /* 2 * Copyright (c) 2017-2019 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_IALLOCATOR_H 25 #define ARM_COMPUTE_IALLOCATOR_H 26 27 #include "arm_compute/runtime/IMemoryRegion.h" 28 29 #include <cstddef> 30 #include <memory> 31 32 namespace arm_compute 33 { 34 /** Allocator interface */ 35 class IAllocator 36 { 37 public: 38 /** Default virtual destructor. */ 39 virtual ~IAllocator() = default; 40 // TODO (COMPMID-1088) : Change allocator and rest interfaces to use IMemoryRegion 41 /** Interface to be implemented by the child class to allocate bytes 42 * 43 * @param[in] size Size to allocate 44 * @param[in] alignment Alignment that the returned pointer should comply with 45 * 46 * @return A pointer to the allocated memory 47 */ 48 virtual void *allocate(size_t size, size_t alignment) = 0; 49 /** Interface to be implemented by the child class to free the allocated tensor */ 50 virtual void free(void *ptr) = 0; 51 /** Create self-managed memory region 52 * 53 * @param[in] size Size of the memory region 54 * @param[in] alignment Alignment of the memory region 55 * 56 * @return The memory region object 57 */ 58 virtual std::unique_ptr<IMemoryRegion> make_region(size_t size, size_t alignment) = 0; 59 }; 60 } // arm_compute 61 #endif /*ARM_COMPUTE_IALLOCATOR_H */ 62