1 2 /* 3 * Copyright (c) 2025 Huawei Device Co., Ltd. 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef FD_LIST_WRAPPER_H 17 #define FD_LIST_WRAPPER_H 18 19 #include <vector> 20 #include <stdint.h> 21 22 namespace OHOS::Print { 23 class FdListWrapper { 24 public: 25 FdListWrapper() = default; 26 ~FdListWrapper(); 27 28 void Add(uint32_t fd); 29 30 const std::vector<uint32_t>& Get() const; 31 32 void ReleaseAll(); 33 34 private: 35 std::vector<uint32_t> fdList_; 36 static constexpr uint32_t INVALID_FD = static_cast<uint32_t>(-1); 37 }; 38 39 } // namespace OHOS::Print 40 41 #endif // FD_LIST_WRAPPER_H