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 #include "sys_event_db_clean.h"
17
18 #include "file_util.h"
19 #include "logger.h"
20 #include "sys_event_dao.h"
21 #include "time_util.h"
22
23 namespace OHOS {
24 namespace HiviewDFX {
25 DEFINE_LOG_TAG("HiView-SysEventDbClean");
26 #ifdef CUSTOM_MAX_FILE_SIZE_MB
27 const int MAX_FILE_SIZE = 1024 * 1024 * CUSTOM_MAX_FILE_SIZE_MB;
28 #else
29 const int MAX_FILE_SIZE = 1024 * 1024 * 100; // 100M
30 #endif // CUSTOM_MAX_FILE_SIZE
31 using EventStore::SysEventDao;
32 using EventStore::SysEventQuery;
33 using EventStore::EventCol;
34 using EventStore::Op;
35 using EventStore::ResultSet;
36
CleanDbStore()37 bool SysEventDbClean::CleanDbStore()
38 {
39 std::string dbFile = SysEventDao::GetDataFile();
40 if (FileUtil::GetFileSize(dbFile) < MAX_FILE_SIZE) {
41 HIVIEW_LOGD("does not need to clean db file");
42 return true;
43 }
44 int count = 0;
45 int64_t zeroClock = TimeUtil::Get0ClockStampMs();
46 while (true) {
47 count++;
48 zeroClock = zeroClock - TimeUtil::SECONDS_PER_DAY * TimeUtil::SEC_TO_MILLISEC;
49 SysEventQuery sysEventQuery = SysEventDao::BuildQuery();
50 ResultSet result = sysEventQuery.Where(EventCol::TS, Op::LT, zeroClock).Execute(1);
51 if (!result.HasNext()) {
52 break;
53 }
54 if (count > 7) { // 7 days of week
55 break;
56 }
57 }
58 zeroClock = zeroClock + TimeUtil::SECONDS_PER_DAY * TimeUtil::SEC_TO_MILLISEC;
59 SysEventQuery sysEventQuery = SysEventDao::BuildQuery();
60 sysEventQuery.Where(EventCol::TS, Op::LT, zeroClock);
61 int retCode = SysEventDao::Delete(sysEventQuery);
62 if (retCode != 0) {
63 HIVIEW_LOGI("clean the db file error at timestamp %{public}" PRId64 "", zeroClock);
64 return false;
65 }
66 HIVIEW_LOGI("clean the db file at timestamp %{public}" PRId64 " successful", zeroClock);
67 return true;
68 }
69 } // namespace HiviewDFX
70 } // namespace OHOS