1 /* 2 * Copyright (c) 2021-2025 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 HIVIEW_PLUGINS_EVENT_SERVICE_INCLUDE_SYS_EVENT_SERVICE_H 17 #define HIVIEW_PLUGINS_EVENT_SERVICE_INCLUDE_SYS_EVENT_SERVICE_H 18 19 #include <fstream> 20 #include <list> 21 #include <memory> 22 23 #include "event.h" 24 #include "period_file_operator.h" 25 #include "plugin.h" 26 #include "sys_event_db_mgr.h" 27 28 namespace OHOS { 29 namespace HiviewDFX { 30 struct StorePeriodInfo { 31 // format: YYYYMMDDHH 32 std::string timeStamp; 33 34 // count of event which has been stored into db file in 1 hour 35 size_t storedCnt = 0; 36 StorePeriodInfoStorePeriodInfo37 StorePeriodInfo(const std::string& timeStamp, size_t storedCnt) : timeStamp(timeStamp), storedCnt(storedCnt) {} 38 }; 39 40 class SysEventStore : public Plugin { 41 public: 42 SysEventStore(); ~SysEventStore()43 ~SysEventStore() {} 44 45 void OnLoad() override; 46 void OnUnload() override; 47 bool OnEvent(std::shared_ptr<Event>& event) override; 48 49 private: 50 std::shared_ptr<SysEvent> Convert2SysEvent(std::shared_ptr<Event>& event); 51 bool IsNeedBackup(const std::string& dateStr); 52 void StatisticStorePeriodInfo(const std::shared_ptr<SysEvent> event); 53 void RecordStorePeriodInfo(); 54 55 private: 56 std::unique_ptr<SysEventDbMgr> sysEventDbMgr_ = nullptr; 57 std::atomic<bool> hasLoaded_ { false }; 58 std::string lastBackupTime_; 59 std::list<std::shared_ptr<StorePeriodInfo>> periodInfoList_; 60 std::unique_ptr<PeriodInfoFileOperator> periodFileOpt_; 61 std::once_flag exportEngineStartFlag_; 62 }; // SysEventService 63 } // namespace HiviewDFX 64 } // namespace OHOS 65 #endif // HIVIEW_PLUGINS_EVENT_SERVICE_INCLUDE_SYS_EVENT_SERVICE_H 66