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 16 #ifndef OHOS_ABILITY_RUNTIME_WATCHDOG_H 17 #define OHOS_ABILITY_RUNTIME_WATCHDOG_H 18 19 #include <string> 20 #include <mutex> 21 #include <thread> 22 #include "event_handler.h" 23 #include "inner_event.h" 24 #include "application_impl.h" 25 26 namespace OHOS { 27 namespace AppExecFwk { 28 constexpr uint32_t INI_TIMER_FIRST_SECOND = 10000; 29 constexpr const char* MAIN_THREAD_TIMEOUT_TASK = "MAIN_THREAD_TIMEOUT_TASK"; 30 class Watchdog { 31 public: 32 Watchdog(); 33 ~Watchdog(); 34 35 /** 36 * 37 * @brief Init the Watchdog. 38 * 39 * @param mainHandler The handler of main thread. 40 */ 41 void Init(const std::shared_ptr<EventHandler> mainHandler); 42 43 /** 44 * 45 * @brief Stop the mainthread function of watchdog. 46 * 47 */ 48 void Stop(); 49 50 /** 51 * 52 * @brief Set the info of application. 53 * 54 * @param applicationInfo The info of application 55 */ 56 void SetApplicationInfo(const std::shared_ptr<ApplicationInfo> &applicationInfo); 57 58 /** 59 * 60 * @brief Set the state of main thread. 61 * 62 * @param appMainThreadState The state of main thread. 63 */ 64 void SetAppMainThreadState(const bool appMainThreadState); 65 66 /** 67 * 68 * @brief Set whether app is in the background or not 69 * 70 */ 71 void SetBackgroundStatus(const bool isInBackground); 72 73 /** 74 * 75 * @brief Allow report the main thread timeout event. 76 * 77 */ 78 void AllowReportEvent(); 79 80 /** 81 * 82 * @brief Get StopWatchdog flag. 83 * 84 */ 85 bool IsStopWatchdog(); 86 87 /** 88 * 89 * @brief Check and reset the main thread state. 90 * 91 */ 92 bool IsReportEvent(); 93 94 private: 95 void Timer(); 96 void reportEvent(); 97 98 std::atomic_bool appMainThreadIsAlive_ = false; 99 std::atomic_bool stopWatchdog_ = false; 100 std::atomic_bool needReport_ = true; 101 std::atomic_bool isSixSecondEvent_ = false; 102 std::atomic_bool isInBackground_ = false; 103 std::shared_ptr<ApplicationInfo> applicationInfo_ = nullptr; 104 std::mutex cvMutex_; 105 std::condition_variable cvWatchdog_; 106 static std::shared_ptr<EventHandler> appMainHandler_; 107 int64_t lastWatchTime_ = 0; 108 }; 109 110 class MainHandlerDumper : public Dumper { 111 public: 112 virtual void Dump(const std::string &message) override; 113 virtual std::string GetTag() override; 114 std::string GetDumpInfo(); 115 private: 116 std::string dumpInfo; 117 }; 118 } // namespace AppExecFwk 119 } // namespace OHOS 120 #endif // OHOS_ABILITY_RUNTIME_WATCHDOG_H 121