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 #include "app_event_log_cleaner.h"
16
17 #include <algorithm>
18 #include <cerrno>
19 #include <cmath>
20
21 #include "file_util.h"
22 #include "hilog/log.h"
23
24 namespace OHOS {
25 namespace HiviewDFX {
26 namespace {
27 const HiLogLabel LABEL = { LOG_CORE, 0xD002D07, "HiAppEvent_LogCleaner" };
28 }
GetFilesSize()29 uint64_t AppEventLogCleaner::GetFilesSize()
30 {
31 return FileUtil::GetDirSize(path_);
32 }
33
ClearSpace(uint64_t curSize,uint64_t maxSize)34 uint64_t AppEventLogCleaner::ClearSpace(uint64_t curSize, uint64_t maxSize)
35 {
36 HiLog::Info(LABEL, "start to clear the space occupied by log files");
37 std::vector<std::string> files;
38 FileUtil::GetDirFiles(path_, files);
39
40 // delete log files one by one based on the timestamp order of the file name
41 sort(files.begin(), files.end());
42
43 uint64_t nowSize = curSize;
44 while (!files.empty() && nowSize > maxSize) {
45 std::string delFile = files[0];
46 files.erase(files.begin());
47 if (!FileUtil::IsFileExists(delFile)) {
48 HiLog::Error(LABEL, "failed to access the log file, errno=%{public}d", errno);
49 continue;
50 }
51 uint64_t delFileSize = FileUtil::GetFileSize(delFile);
52 if (!FileUtil::RemoveFile(delFile)) {
53 HiLog::Error(LABEL, "failed to remove the log file, errno=%{public}d", errno);
54 continue;
55 }
56 nowSize -= std::min(delFileSize, nowSize);
57 }
58 return nowSize;
59 }
60
ClearData()61 void AppEventLogCleaner::ClearData()
62 {
63 HiLog::Info(LABEL, "start to clear the log data");
64 if (FileUtil::IsFileExists(path_) && !FileUtil::ForceRemoveDirectory(path_)) {
65 HiLog::Error(LABEL, "failed to clear the log data, errno=%{public}d", errno);
66 }
67 }
68 } // namespace HiviewDFX
69 } // namespace OHOS
70