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_OFFSETMEMORYPOOL_H 25 #define ARM_COMPUTE_OFFSETMEMORYPOOL_H 26 27 #include "arm_compute/runtime/IMemoryPool.h" 28 29 #include "arm_compute/runtime/IMemoryRegion.h" 30 #include "arm_compute/runtime/Types.h" 31 32 #include <cstddef> 33 #include <memory> 34 35 namespace arm_compute 36 { 37 class IAllocator; 38 39 /** Offset based memory pool */ 40 class OffsetMemoryPool : public IMemoryPool 41 { 42 public: 43 /** Default Constructor 44 * 45 * @note allocator should outlive the memory pool 46 * 47 * @param[in] allocator Backing memory allocator 48 * @param[in] blob_info Configuration information of the blob to be allocated 49 */ 50 OffsetMemoryPool(IAllocator *allocator, BlobInfo blob_info); 51 /** Default Destructor */ 52 ~OffsetMemoryPool() = default; 53 /** Prevent instances of this class to be copy constructed */ 54 OffsetMemoryPool(const OffsetMemoryPool &) = delete; 55 /** Prevent instances of this class to be copy assigned */ 56 OffsetMemoryPool &operator=(const OffsetMemoryPool &) = delete; 57 /** Allow instances of this class to be move constructed */ 58 OffsetMemoryPool(OffsetMemoryPool &&) = default; 59 /** Allow instances of this class to be move assigned */ 60 OffsetMemoryPool &operator=(OffsetMemoryPool &&) = default; 61 /** Accessor to the pool internal configuration meta-data 62 * 63 * @return Pool internal configuration meta-data 64 */ 65 const BlobInfo &info() const; 66 67 // Inherited methods overridden: 68 void acquire(MemoryMappings &handles) override; 69 void release(MemoryMappings &handles) override; 70 MappingType mapping_type() const override; 71 std::unique_ptr<IMemoryPool> duplicate() override; 72 73 private: 74 IAllocator *_allocator; /**< Allocator to use for internal allocation */ 75 std::unique_ptr<IMemoryRegion> _blob; /**< Memory blob */ 76 BlobInfo _blob_info; /**< Information for the blob to allocate */ 77 }; 78 } // namespace arm_compute 79 #endif /* ARM_COMPUTE_OFFSETMEMORYPOOL_H */ 80