| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "perfetto/base/logging.h" |
| #include "perfetto/ext/base/getopt.h" |
| #include "perfetto/ext/base/unix_task_runner.h" |
| #include "perfetto/ext/traced/traced.h" |
| #include "src/android_stats/statsd_logging_helper.h" |
| #include "src/perfetto_cmd/trigger_producer.h" |
| |
| namespace perfetto { |
| namespace { |
| |
| int PrintUsage(const char* argv0) { |
| PERFETTO_ELOG(R"( |
| Usage: %s TRIGGER... |
| -h|--help Show this message |
| )", |
| argv0); |
| return 1; |
| } |
| |
| } // namespace |
| |
| int PERFETTO_EXPORT_ENTRYPOINT TriggerPerfettoMain(int argc, char** argv) { |
| static const option long_options[] = {{"help", no_argument, nullptr, 'h'}, |
| {nullptr, 0, nullptr, 0}}; |
| |
| // Set opterror to zero to disable |getopt_long| from printing an error and |
| // exiting when it encounters an unknown option. Instead, |getopt_long| |
| // will return '?' which we silently ignore. |
| // |
| // We prefer ths behaviour rather than erroring on unknown options because |
| // trigger_perfetto can be called by apps so it's command line API needs to |
| // be backward and forward compatible. If we introduce an option here which |
| // apps will use in the future, we don't want to cause errors on older |
| // platforms where the command line flag did not exist. |
| // |
| // This behaviour was introduced in Android S. |
| opterr = 0; |
| |
| std::vector<std::string> triggers_to_activate; |
| bool seen_unknown_arg = false; |
| |
| for (;;) { |
| int option = getopt_long(argc, argv, "h", long_options, nullptr); |
| |
| if (option == 'h') |
| return PrintUsage(argv[0]); |
| |
| if (option == '?') { |
| seen_unknown_arg = true; |
| } |
| |
| if (option == -1) |
| break; // EOF. |
| } |
| |
| // See above for rationale on why we just ignore unknown args instead of |
| // exiting. |
| if (seen_unknown_arg) { |
| PERFETTO_ELOG("Ignoring unknown arguments. See --help for usage."); |
| } |
| |
| for (int i = optind; i < argc; i++) |
| triggers_to_activate.push_back(std::string(argv[i])); |
| |
| if (triggers_to_activate.empty()) { |
| PERFETTO_ELOG("At least one trigger must the specified."); |
| return PrintUsage(argv[0]); |
| } |
| |
| android_stats::MaybeLogTriggerEvents( |
| PerfettoTriggerAtom::kTriggerPerfettoTrigger, triggers_to_activate); |
| |
| bool finished_with_success = false; |
| base::UnixTaskRunner task_runner; |
| TriggerProducer producer( |
| &task_runner, |
| [&task_runner, &finished_with_success](bool success) { |
| finished_with_success = success; |
| task_runner.Quit(); |
| }, |
| &triggers_to_activate); |
| task_runner.Run(); |
| |
| if (!finished_with_success) { |
| android_stats::MaybeLogTriggerEvents( |
| PerfettoTriggerAtom::kTriggerPerfettoTriggerFail, triggers_to_activate); |
| return 1; |
| } |
| return 0; |
| } |
| |
| } // namespace perfetto |