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_ISIMPLELIFETIMEMANAGER_H 25 #define ARM_COMPUTE_ISIMPLELIFETIMEMANAGER_H 26 27 #include "arm_compute/runtime/ILifetimeManager.h" 28 29 #include "arm_compute/runtime/IMemoryPool.h" 30 #include "arm_compute/runtime/Types.h" 31 32 #include <cstddef> 33 #include <list> 34 #include <map> 35 #include <set> 36 #include <vector> 37 38 namespace arm_compute 39 { 40 class IAllocator; 41 class IMemoryGroup; 42 43 /** Abstract class of the simple lifetime manager interface */ 44 class ISimpleLifetimeManager : public ILifetimeManager 45 { 46 public: 47 /** Constructor */ 48 ISimpleLifetimeManager(); 49 /** Prevent instances of this class to be copy constructed */ 50 ISimpleLifetimeManager(const ISimpleLifetimeManager &) = delete; 51 /** Prevent instances of this class to be copied */ 52 ISimpleLifetimeManager &operator=(const ISimpleLifetimeManager &) = delete; 53 /** Allow instances of this class to be move constructed */ 54 ISimpleLifetimeManager(ISimpleLifetimeManager &&) = default; 55 /** Allow instances of this class to be moved */ 56 ISimpleLifetimeManager &operator=(ISimpleLifetimeManager &&) = default; 57 58 // Inherited methods overridden: 59 void register_group(IMemoryGroup *group) override; 60 bool release_group(IMemoryGroup *group) override; 61 void start_lifetime(void *obj) override; 62 void end_lifetime(void *obj, IMemory &obj_memory, size_t size, size_t alignment) override; 63 bool are_all_finalized() const override; 64 65 protected: 66 /** Update blobs and mappings */ 67 virtual void update_blobs_and_mappings() = 0; 68 69 protected: 70 /** Element struct */ 71 struct Element 72 { 73 Element(void *id_ = nullptr, IMemory *handle_ = nullptr, size_t size_ = 0, size_t alignment_ = 0, bool status_ = false) idElement74 : id(id_), handle(handle_), size(size_), alignment(alignment_), status(status_) 75 { 76 } 77 void *id; /**< Element id */ 78 IMemory *handle; /**< Element's memory handle */ 79 size_t size; /**< Element's size */ 80 size_t alignment; /**< Alignment requirement */ 81 bool status; /**< Lifetime status */ 82 }; 83 84 /** Blob struct */ 85 struct Blob 86 { 87 void *id; 88 size_t max_size; 89 size_t max_alignment; 90 std::set<void *> bound_elements; 91 }; 92 93 IMemoryGroup *_active_group; /**< Active group */ 94 std::map<void *, Element> _active_elements; /**< A map that contains the active elements */ 95 std::list<Blob> _free_blobs; /**< Free blobs */ 96 std::list<Blob> _occupied_blobs; /**< Occupied blobs */ 97 std::map<IMemoryGroup *, std::map<void *, Element>> _finalized_groups; /**< A map that contains the finalized groups */ 98 }; 99 } // namespace arm_compute 100 #endif /* ARM_COMPUTE_ISIMPLELIFETIMEMANAGER_H */ 101