1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 /** 17 * @file mutex.h 18 * 19 * @brief Declares the mutex interfaces in C++. 20 * 21 * @since 10 22 * @version 1.0 23 */ 24 #ifndef FFRT_API_CPP_MUTEX_H 25 #define FFRT_API_CPP_MUTEX_H 26 #include "../c/mutex.h" 27 28 namespace ffrt { 29 class mutex : public ffrt_mutex_t { 30 public: mutex()31 mutex() 32 { 33 ffrt_mutex_init(this, nullptr); 34 } 35 ~mutex()36 ~mutex() 37 { 38 ffrt_mutex_destroy(this); 39 } 40 41 mutex(mutex const&) = delete; 42 void operator=(mutex const&) = delete; 43 try_lock()44 inline bool try_lock() 45 { 46 return ffrt_mutex_trylock(this) == ffrt_success ? true : false; 47 } 48 lock()49 inline void lock() 50 { 51 ffrt_mutex_lock(this); 52 } 53 unlock()54 inline void unlock() 55 { 56 ffrt_mutex_unlock(this); 57 } 58 }; 59 60 class recursive_mutex : public ffrt_mutex_t { 61 public: recursive_mutex()62 recursive_mutex() 63 { 64 ffrt_recursive_mutex_init(this, nullptr); 65 } 66 ~recursive_mutex()67 ~recursive_mutex() 68 { 69 ffrt_recursive_mutex_destroy(this); 70 } 71 72 recursive_mutex(recursive_mutex const&) = delete; 73 void operator=(recursive_mutex const&) = delete; 74 try_lock()75 inline bool try_lock() 76 { 77 return ffrt_recursive_mutex_trylock(this) == ffrt_success ? true : false; 78 } 79 lock()80 inline void lock() 81 { 82 ffrt_recursive_mutex_lock(this); 83 } 84 unlock()85 inline void unlock() 86 { 87 ffrt_recursive_mutex_unlock(this); 88 } 89 }; 90 } // namespace ffrt 91 #endif 92