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 TIMER_HANDLER_H 17 #define TIMER_HANDLER_H 18 19 #include "time_common.h" 20 21 namespace OHOS { 22 namespace MiscServices { 23 #ifdef SET_AUTO_REBOOT_ENABLE 24 static constexpr size_t ALARM_TYPE_COUNT = 6; 25 #else 26 static constexpr size_t ALARM_TYPE_COUNT = 5; 27 #endif 28 static constexpr size_t N_TIMER_FDS = ALARM_TYPE_COUNT + 1; 29 typedef std::array<int, N_TIMER_FDS> TimerFds; 30 31 class TimerHandler { 32 public: 33 static std::shared_ptr<TimerHandler> Create(); 34 int Set(uint32_t type, std::chrono::nanoseconds when, std::chrono::steady_clock::time_point bootTime); 35 uint32_t WaitForAlarm(); 36 ~TimerHandler(); 37 private: 38 TimerHandler(const TimerFds &fds, int epollfd); 39 static int SetRealTimeFd(TimerFds fds); 40 const TimerFds fds_; 41 const int epollFd_; 42 }; 43 } // MiscService 44 } // OHOS 45 #endif