David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2017 Arm Ltd. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | #pragma once |
| 6 | |
| 7 | #include <armnn/Types.hpp> |
David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 8 | #include <functional> |
| 9 | #include <memory> |
| 10 | #include <unordered_map> |
| 11 | |
| 12 | namespace armnn |
| 13 | { |
| 14 | |
| 15 | class IBackend; |
| 16 | |
| 17 | class BackendRegistry |
| 18 | { |
| 19 | public: |
| 20 | using FactoryFunction = std::function<IBackendUniquePtr()>; |
| 21 | |
| 22 | static BackendRegistry& Instance(); |
David Beck | 9df2d95 | 2018-10-10 15:11:44 +0100 | [diff] [blame] | 23 | |
| 24 | void Register(const BackendId& id, FactoryFunction factory); |
| 25 | FactoryFunction GetFactory(const BackendId& id) const; |
David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 26 | |
| 27 | struct Helper |
| 28 | { |
David Beck | 9df2d95 | 2018-10-10 15:11:44 +0100 | [diff] [blame] | 29 | Helper(const BackendId& id, FactoryFunction factory) |
David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 30 | { |
David Beck | 9df2d95 | 2018-10-10 15:11:44 +0100 | [diff] [blame] | 31 | BackendRegistry::Instance().Register(id, factory); |
David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 32 | } |
| 33 | }; |
| 34 | |
| 35 | size_t Size() const { return m_BackendFactories.size(); } |
David Beck | 9df2d95 | 2018-10-10 15:11:44 +0100 | [diff] [blame] | 36 | BackendIdSet GetBackendIds() const; |
David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 37 | |
| 38 | protected: |
David Beck | 9df2d95 | 2018-10-10 15:11:44 +0100 | [diff] [blame] | 39 | using FactoryStorage = std::unordered_map<BackendId, FactoryFunction>; |
David Beck | 32cbb0c | 2018-10-09 15:46:08 +0100 | [diff] [blame] | 40 | |
| 41 | // For testing only |
| 42 | static void Swap(FactoryStorage& other); |
| 43 | BackendRegistry() {} |
| 44 | ~BackendRegistry() {} |
| 45 | |
| 46 | private: |
| 47 | BackendRegistry(const BackendRegistry&) = delete; |
| 48 | BackendRegistry& operator=(const BackendRegistry&) = delete; |
| 49 | |
| 50 | FactoryStorage m_BackendFactories; |
| 51 | }; |
| 52 | |
| 53 | } // namespace armnn |