Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 1 | /* |
Michele Di Giorgio | d9eaf61 | 2020-07-08 11:12:57 +0100 | [diff] [blame] | 2 | * Copyright (c) 2017-2019 Arm Limited. |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 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_MUTEX_H__ |
| 25 | #define __ARM_COMPUTE_MUTEX_H__ |
| 26 | |
| 27 | #include <mutex> |
| 28 | |
| 29 | namespace arm_compute |
| 30 | { |
| 31 | #ifndef NO_MULTI_THREADING |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 32 | /** Wrapper of Mutex data-object */ |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 33 | using Mutex = std::mutex; |
Georgios Pinitas | e874ef9 | 2019-09-09 17:40:33 +0100 | [diff] [blame] | 34 | |
| 35 | /** Wrapper of lock_guard data-object */ |
| 36 | template <typename Mutex> |
| 37 | using lock_guard = std::lock_guard<Mutex>; |
| 38 | |
| 39 | /** Wrapper of lock_guard data-object */ |
| 40 | template <typename Mutex> |
| 41 | using unique_lock = std::unique_lock<Mutex>; |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 42 | #else /* NO_MULTI_THREADING */ |
| 43 | /** Wrapper implementation of Mutex data-object */ |
| 44 | class Mutex |
| 45 | { |
| 46 | public: |
| 47 | /** Default constructor */ |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 48 | Mutex() = default; |
| 49 | /** Default destructor */ |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 50 | ~Mutex() = default; |
| 51 | |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 52 | /** Lock */ |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 53 | void lock(){}; |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 54 | |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 55 | /** Unlock */ |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 56 | void unlock(){}; |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 57 | |
Alex Gilday | c357c47 | 2018-03-21 13:54:09 +0000 | [diff] [blame] | 58 | /** Try the lock. |
| 59 | * |
| 60 | * @return true. |
| 61 | */ |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 62 | bool try_lock() |
| 63 | { |
| 64 | return true; |
| 65 | } |
| 66 | }; |
Georgios Pinitas | e874ef9 | 2019-09-09 17:40:33 +0100 | [diff] [blame] | 67 | |
| 68 | /** Wrapper implementation of lock-guard data-object */ |
| 69 | template <typename Mutex> |
| 70 | class lock_guard |
| 71 | { |
| 72 | public: |
| 73 | typedef Mutex mutex_type; |
| 74 | |
| 75 | public: |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 76 | explicit lock_guard(Mutex &m_) : m(m_) |
Georgios Pinitas | e874ef9 | 2019-09-09 17:40:33 +0100 | [diff] [blame] | 77 | { |
| 78 | } |
| 79 | ~lock_guard() |
| 80 | { |
| 81 | } |
| 82 | lock_guard(const lock_guard &) = delete; |
| 83 | |
| 84 | private: |
| 85 | mutex_type &m; |
| 86 | }; |
| 87 | |
| 88 | /** Wrapper implementation of unique-lock data-object */ |
| 89 | template <typename Mutex> |
| 90 | class unique_lock |
| 91 | { |
| 92 | public: |
| 93 | typedef Mutex mutex_type; |
| 94 | |
| 95 | public: |
| 96 | unique_lock() noexcept : m(nullptr) |
| 97 | { |
| 98 | } |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 99 | explicit unique_lock(mutex_type &m) : m(&m) |
Georgios Pinitas | e874ef9 | 2019-09-09 17:40:33 +0100 | [diff] [blame] | 100 | { |
| 101 | } |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 102 | unique_lock(const unique_lock &) = delete; |
| 103 | unique_lock(unique_lock &&) = default; |
Georgios Pinitas | e874ef9 | 2019-09-09 17:40:33 +0100 | [diff] [blame] | 104 | unique_lock &operator=(const unique_lock &) = delete; |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 105 | unique_lock &operator=(unique_lock &&) = default; |
| 106 | ~unique_lock() = default; |
Georgios Pinitas | e874ef9 | 2019-09-09 17:40:33 +0100 | [diff] [blame] | 107 | void lock() |
| 108 | { |
| 109 | } |
| 110 | bool try_lock() |
| 111 | { |
| 112 | return true; |
| 113 | } |
| 114 | void unlock() |
| 115 | { |
| 116 | } |
| 117 | |
| 118 | private: |
| 119 | mutex_type *m; |
| 120 | }; |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 121 | #endif /* NO_MULTI_THREADING */ |
Felix Thomasmathibalan | afd38f0 | 2023-09-27 17:46:17 +0100 | [diff] [blame] | 122 | } // namespace arm_compute |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 123 | #endif /* __ARM_COMPUTE_MUTEX_H__ */ |