1 /* 2 * Copyright (c) 2021 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 #ifndef UTILS_INCLUDE_LOCAL_SEMAPHORE_H 17 #define UTILS_INCLUDE_LOCAL_SEMAPHORE_H 18 19 #include <semaphore.h> 20 21 namespace OHOS { 22 class LocalSemaphore { 23 public: 24 LocalSemaphore(int count = 0); 25 ~LocalSemaphore(); 26 27 void Inc(); 28 void Dec(); 29 30 private: 31 sem_t sem; 32 }; 33 } // namespace OHOS 34 35 #endif // UTILS_INCLUDE_LOCAL_SEMAPHORE_H 36