1 /* 2 * Copyright (C) 2021-2023 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 TIMER_MANAGER_H 16 #define TIMER_MANAGER_H 17 18 #include <atomic> 19 #include <chrono> 20 #include <cinttypes> 21 #include <functional> 22 #include <map> 23 #include <mutex> 24 #include <random> 25 #include <thread> 26 #include <vector> 27 #include <unordered_set> 28 #include <utility> 29 30 #include "batch.h" 31 #include "timer_handler.h" 32 #include "want_agent_helper.h" 33 #include "time_common.h" 34 35 #ifdef POWER_MANAGER_ENABLE 36 #include "completed_callback.h" 37 #include "power_mgr_client.h" 38 #endif 39 40 namespace OHOS { 41 namespace MiscServices { 42 static std::vector<std::string> NEED_RECOVER_ON_REBOOT = { "not_support" }; 43 44 class TimerManager : public ITimerManager { 45 public: 46 int32_t CreateTimer(TimerPara ¶s, 47 std::function<int32_t (const uint64_t)> callback, 48 std::shared_ptr<OHOS::AbilityRuntime::WantAgent::WantAgent> wantAgent, 49 int uid, 50 int pid, 51 uint64_t &timerId, 52 DatabaseType type) override; 53 void ReCreateTimer(uint64_t timerId, std::shared_ptr<TimerEntry> timerInfo); 54 int32_t StartTimer(uint64_t timerId, uint64_t triggerTime) override; 55 int32_t StopTimer(uint64_t timerId) override; 56 int32_t DestroyTimer(uint64_t timerId) override; 57 bool ProxyTimer(int32_t uid, bool isProxy, bool needRetrigger) override; 58 bool ProxyTimer(int32_t uid, std::set<int> pidList, bool isProxy, bool needRetrigger) override; 59 bool AdjustTimer(bool isAdjust, uint32_t interval) override; 60 void SetTimerExemption(const std::unordered_set<std::string> &nameArr, bool isExemption) override; 61 bool ResetAllProxy() override; 62 bool ShowTimerEntryMap(int fd); 63 bool ShowTimerEntryById(int fd, uint64_t timerId); 64 bool ShowTimerTriggerById(int fd, uint64_t timerId); 65 bool ShowIdleTimerInfo(int fd); 66 ~TimerManager() override; 67 void HandleRSSDeath(); 68 static TimerManager* GetInstance(); 69 70 private: 71 explicit TimerManager(std::shared_ptr<TimerHandler> impl); 72 void TimerLooper(); 73 74 void SetHandler(uint64_t id, 75 int type, 76 uint64_t triggerAtTime, 77 int64_t windowLength, 78 uint64_t interval, 79 int flag, 80 std::function<int32_t (const uint64_t)> callback, 81 std::shared_ptr<OHOS::AbilityRuntime::WantAgent::WantAgent> wantAgent, 82 int uid, 83 int pid, 84 const std::string &bundleName); 85 void SetHandlerLocked(uint64_t id, 86 int type, 87 std::chrono::milliseconds when, 88 std::chrono::steady_clock::time_point whenElapsed, 89 std::chrono::milliseconds windowLength, 90 std::chrono::steady_clock::time_point maxWhen, 91 std::chrono::milliseconds interval, 92 std::function<int32_t (const uint64_t)> callback, 93 const std::shared_ptr<OHOS::AbilityRuntime::WantAgent::WantAgent> &wantAgent, 94 uint32_t flags, 95 uint64_t callingUid, 96 uint64_t callingPid, 97 const std::string &bundleName); 98 void RemoveHandler(uint64_t id); 99 void RemoveLocked(uint64_t id, bool needReschedule); 100 void ReBatchAllTimers(); 101 void ReAddTimerLocked(std::shared_ptr<TimerInfo> timer, 102 std::chrono::steady_clock::time_point nowElapsed); 103 void ReCalcuOriWhenElapsed(std::shared_ptr<TimerInfo> timer, 104 std::chrono::steady_clock::time_point nowElapsed); 105 void SetHandlerLocked(std::shared_ptr<TimerInfo> alarm, bool rebatching, bool isRebatched); 106 void InsertAndBatchTimerLocked(std::shared_ptr<TimerInfo> alarm); 107 int64_t AttemptCoalesceLocked(std::chrono::steady_clock::time_point whenElapsed, 108 std::chrono::steady_clock::time_point maxWhen); 109 void TriggerIdleTimer(); 110 bool ProcTriggerTimer(std::shared_ptr<TimerInfo> &alarm, 111 const std::chrono::steady_clock::time_point &nowElapsed); 112 bool TriggerTimersLocked(std::vector<std::shared_ptr<TimerInfo>> &triggerList, 113 std::chrono::steady_clock::time_point nowElapsed); 114 void RescheduleKernelTimerLocked(); 115 void DeliverTimersLocked(const std::vector<std::shared_ptr<TimerInfo>> &triggerList); 116 void NotifyWantAgentRetry(std::shared_ptr<TimerInfo> timer); 117 std::shared_ptr<Batch> FindFirstWakeupBatchLocked(); 118 void SetLocked(int type, std::chrono::nanoseconds when, std::chrono::steady_clock::time_point bootTime); 119 std::chrono::steady_clock::time_point ConvertToElapsed(std::chrono::milliseconds when, int type); 120 std::chrono::steady_clock::time_point GetBootTimeNs(); 121 int32_t StopTimerInner(uint64_t timerNumber, bool needDestroy); 122 int32_t CheckUserIdForNotify(const std::shared_ptr<TimerInfo> &timer); 123 bool NotifyWantAgent(const std::shared_ptr<TimerInfo> &timer); 124 bool CheckAllowWhileIdle(const std::shared_ptr<TimerInfo> &alarm); 125 bool AdjustDeliveryTimeBasedOnDeviceIdle(const std::shared_ptr<TimerInfo> &alarm); 126 bool AdjustTimersBasedOnDeviceIdle(); 127 void HandleRepeatTimer(const std::shared_ptr<TimerInfo> &timer, std::chrono::steady_clock::time_point nowElapsed); 128 inline bool CheckNeedRecoverOnReboot(std::string bundleName, int type); 129 #ifdef POWER_MANAGER_ENABLE 130 void HandleRunningLock(const std::shared_ptr<Batch> &firstWakeup); 131 void AddRunningLock(long long holdLockTime); 132 void AddRunningLockRetry(long long holdLockTime); 133 #endif 134 135 void UpdateTimersState(std::shared_ptr<TimerInfo> &alarm); 136 bool AdjustSingleTimer(std::shared_ptr<TimerInfo> timer); 137 void IncreaseTimerCount(int uid); 138 void DecreaseTimerCount(int uid); 139 void CheckTimerCount(); 140 void ShowTimerCountByUid(); 141 142 std::map<uint64_t, std::shared_ptr<TimerEntry>> timerEntryMap_; 143 // vector<uid, count> 144 std::vector<std::pair<int32_t, int32_t>> timerCount_; 145 std::default_random_engine random_; 146 std::atomic_bool runFlag_; 147 std::shared_ptr<TimerHandler> handler_; 148 std::unique_ptr<std::thread> alarmThread_; 149 std::vector<std::shared_ptr<Batch>> alarmBatches_; 150 std::mutex mutex_; 151 std::mutex entryMapMutex_; 152 std::chrono::system_clock::time_point lastTimeChangeClockTime_; 153 std::chrono::steady_clock::time_point lastTimeChangeRealtime_; 154 static std::mutex instanceLock_; 155 static TimerManager* instance_; 156 157 std::vector<std::shared_ptr<TimerInfo>> pendingDelayTimers_; 158 // map<timerId, original trigger time> for delayed timers 159 std::map<uint64_t, std::chrono::steady_clock::time_point> delayedTimers_; 160 // idle timer 161 std::shared_ptr<TimerInfo> mPendingIdleUntil_; 162 bool adjustPolicy_ = false; 163 uint32_t adjustInterval_ = 0; 164 int64_t timerOutOfRangeTimes_ = 0; 165 std::chrono::steady_clock::time_point lastTimerOutOfRangeTime_; 166 #ifdef POWER_MANAGER_ENABLE 167 std::mutex runningLockMutex_; 168 std::shared_ptr<PowerMgr::RunningLock> runningLock_; 169 int64_t lockExpiredTime_ = 0; 170 #endif 171 }; // timer_manager 172 } // MiscServices 173 } // OHOS 174 175 #endif