1 /* 2 * Copyright (C) 2022 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 #ifndef NFC_WATCH_DOG_H 16 #define NFC_WATCH_DOG_H 17 18 #include <condition_variable> 19 #include <mutex> 20 #include <string> 21 #include <thread> 22 23 #include "infcc_host.h" 24 25 namespace OHOS { 26 namespace NFC { 27 class NfcWatchDog final { 28 public: 29 NfcWatchDog(const std::string& threadName, int timeout, std::weak_ptr<NCI::INfccHost> nfccHost); 30 ~NfcWatchDog(); 31 void Cancel(); 32 void Run(); 33 34 private: 35 void MainLoop(); 36 37 private: 38 std::mutex mutex_ {}; 39 std::condition_variable conditionVariable_ {}; 40 std::string threadName_ {""}; 41 int timeout_ {0}; 42 volatile bool canceled_ {false}; 43 std::unique_ptr<std::thread> thread_ {}; 44 45 std::weak_ptr<NCI::INfccHost> nfccHost_; 46 }; 47 } // namespace NFC 48 } // namespace OHOS 49 #endif // NFC_WATCH_DOG_H 50