1 // Copyright 2021 Google LLC
2 //
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 #pragma once
16 
17 #include <string>
18 #include <string_view>
19 
20 namespace metric_blob
21 {
22 
23 struct TcommUtimeStime
24 {
25     std::string tcomm;
26     float utime;
27     float stime;
28 };
29 
30 struct BootTimesMonotonic
31 {
32     uint64_t firmwareTime = 0;
33     uint64_t loaderTime = 0;
34     uint64_t initrdTime = 0;
35     uint64_t userspaceTime = 0;
36     uint64_t finishTime = 0;
37     uint64_t powerOnSecCounterTime = 0;
38 };
39 
40 TcommUtimeStime parseTcommUtimeStimeString(std::string_view content,
41                                            long ticksPerSec);
42 std::string readFileThenGrepIntoString(std::string_view fileName,
43                                        std::string_view grepStr = "");
44 bool isNumericPath(std::string_view path, int& value);
45 TcommUtimeStime getTcommUtimeStime(int pid, long ticksPerSec);
46 std::string getCmdLine(int pid);
47 bool parseMeminfoValue(std::string_view content, std::string_view keyword,
48                        int& value);
49 bool parseProcUptime(const std::string_view content, double& uptime,
50                      double& idleProcessTime);
51 bool readMem(const uint32_t target, uint32_t& memResult);
52 bool getBootTimesMonotonic(BootTimesMonotonic& btm);
53 long getTicksPerSec();
54 char controlCharsToSpace(char c);
55 std::string trimStringRight(std::string_view s);
56 
57 } // namespace metric_blob
58