1 /*
2 * Copyright (C) 2021-2022 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 #include "executor/memory/parse/parse_meminfo.h"
17 #include <fstream>
18 #include "executor/memory/memory_filter.h"
19 #include "executor/memory/memory_util.h"
20 #include "hilog_wrapper.h"
21 #include "util/string_utils.h"
22 #include "util/file_utils.h"
23
24 using namespace std;
25 namespace OHOS {
26 namespace HiviewDFX {
ParseMeminfo()27 ParseMeminfo::ParseMeminfo()
28 {
29 }
30
~ParseMeminfo()31 ParseMeminfo::~ParseMeminfo()
32 {
33 }
34
35 /**
36 * @description: SetData
37 * @param {string} &str-String to be inserted into result
38 * @param {ValueMap} &result-Returned results
39 * @return void
40 */
SetData(const string & str,ValueMap & result)41 void ParseMeminfo::SetData(const string &str, ValueMap &result)
42 {
43 string type = "";
44 uint64_t value = 0;
45 if (MemoryUtil::GetInstance().GetTypeValue(str, MemoryFilter::GetInstance().MEMINFO_TAG_, type, value)) {
46 result.insert(pair<string, uint64_t>(type, value));
47 }
48 }
49
50 /**
51 * @description: Get the data from meminfo
52 * @param {ValueMap} &meminfo - the meminfo result
53 * @return bool-true:success,false-fail
54 */
GetMeminfo(ValueMap & result)55 bool ParseMeminfo::GetMeminfo(ValueMap &result)
56 {
57 string path = "/proc/meminfo";
58 bool ret = FileUtils::GetInstance().LoadStringFromProcCb(path, false, true, [&](const string& line) -> void {
59 SetData(line, result);
60 });
61 return ret;
62 }
63 } // namespace HiviewDFX
64 } // namespace OHOS
65