1/*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "perfetto/ftrace_reader/ftrace_config.h"
18
19#include "perfetto/base/logging.h"
20
21namespace perfetto {
22namespace {
23
24bool IsGoodPunctuation(char c) {
25  return c == '_' || c == '.';
26}
27
28bool IsValid(const std::string& str) {
29  for (size_t i = 0; i < str.size(); i++) {
30    if (!isalnum(str[i]) && !IsGoodPunctuation(str[i]))
31      return false;
32  }
33  return true;
34}
35
36}  // namespace
37
38std::set<std::string> FtraceEventsAsSet(const FtraceConfig& config) {
39  std::set<std::string> events;
40  for (const std::string& event : config.ftrace_events())
41    events.insert(event);
42  return events;
43}
44
45FtraceConfig CreateFtraceConfig(std::set<std::string> names) {
46  FtraceConfig config;
47  for (const std::string& name : names)
48    *config.add_ftrace_events() = name;
49  return config;
50}
51
52bool RequiresAtrace(const FtraceConfig& config) {
53  return !config.atrace_categories().empty() || !config.atrace_apps().empty();
54}
55
56bool ValidConfig(const FtraceConfig& config) {
57  for (const std::string& event_name : config.ftrace_events()) {
58    if (!IsValid(event_name)) {
59      PERFETTO_ELOG("Bad event name '%s'", event_name.c_str());
60      return false;
61    }
62  }
63  for (const std::string& category : config.atrace_categories()) {
64    if (!IsValid(category)) {
65      PERFETTO_ELOG("Bad category name '%s'", category.c_str());
66      return false;
67    }
68  }
69  for (const std::string& app : config.atrace_apps()) {
70    if (!IsValid(app)) {
71      PERFETTO_ELOG("Bad app '%s'", app.c_str());
72      return false;
73    }
74  }
75  return true;
76}
77
78}  // namespace perfetto
79