1 /* 2 * Copyright (C) 2024 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 SCREEN_CAPTURE_LIMIT_ID_GENERATOR_H 17 #define SCREEN_CAPTURE_LIMIT_ID_GENERATOR_H 18 19 #include <iostream> 20 #include <queue> 21 #include <mutex> 22 23 namespace OHOS { 24 namespace Media { 25 class UniqueIDGenerator { 26 public: 27 explicit UniqueIDGenerator(int32_t limit); 28 ~UniqueIDGenerator(); 29 int32_t GetNewID(); 30 int32_t ReturnID(int32_t id); 31 bool IsIDExists(int32_t id); 32 33 private: 34 std::queue<int32_t> availableIDs_; 35 int32_t limit_ = 0; 36 std::mutex queueMtx_; 37 }; 38 } // namespace Media 39 } // namespace OHOS 40 41 #endif // SCREEN_CAPTURE_LIMIT_ID_GENERATOR_H