| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <fuchsia/sys/cpp/fidl.h> |
| #include <lib/async/cpp/task.h> |
| #include <lib/async/default.h> |
| #include <lib/fdio/spawn.h> |
| #include <zx/time.h> |
| |
| #include <errno.h> |
| #include <netdb.h> |
| #include <string.h> |
| #include <sys/socket.h> |
| #include <fstream> |
| #include <string> |
| #include <unordered_set> |
| |
| #include <third_party/zlib/contrib/iostream3/zfstream.h> |
| |
| #include "garnet/bin/trace/commands/record.h" |
| #include "garnet/bin/trace/results_export.h" |
| #include "garnet/bin/trace/results_output.h" |
| #include "lib/fsl/types/type_converters.h" |
| #include "lib/fxl/files/file.h" |
| #include "lib/fxl/files/path.h" |
| #include "lib/fxl/files/unique_fd.h" |
| #include "lib/fxl/logging.h" |
| #include "lib/fxl/strings/join_strings.h" |
| #include "lib/fxl/strings/split_string.h" |
| #include "lib/fxl/strings/string_number_conversions.h" |
| #include "lib/fxl/strings/string_view.h" |
| #include "lib/fxl/strings/trim.h" |
| |
| namespace tracing { |
| |
| namespace { |
| |
| // Command line options. |
| const char kSpecFile[] = "spec-file"; |
| const char kCategories[] = "categories"; |
| const char kAppendArgs[] = "append-args"; |
| const char kOutputFile[] = "output-file"; |
| const char kCompress[] = "compress"; |
| const char kDuration[] = "duration"; |
| const char kDetach[] = "detach"; |
| const char kDecouple[] = "decouple"; |
| const char kLaunchpad[] = "launchpad"; // deprecated |
| const char kSpawn[] = "spawn"; |
| const char kBufferSize[] = "buffer-size"; |
| const char kBufferingMode[] = "buffering-mode"; |
| const char kBenchmarkResultsFile[] = "benchmark-results-file"; |
| const char kTestSuite[] = "test-suite"; |
| |
| const char kTcpPrefix[] = "tcp:"; |
| |
| const struct { |
| const char* name; |
| fuchsia::tracing::BufferingMode mode; |
| } kBufferingModes[] = { |
| {"oneshot", fuchsia::tracing::BufferingMode::ONESHOT}, |
| {"circular", fuchsia::tracing::BufferingMode::CIRCULAR}, |
| {"streaming", fuchsia::tracing::BufferingMode::STREAMING}, |
| }; |
| |
| static bool BeginsWith(fxl::StringView str, fxl::StringView prefix, |
| fxl::StringView* arg) { |
| size_t prefix_size = prefix.size(); |
| if (str.size() < prefix_size) |
| return false; |
| if (str.substr(0, prefix_size) != prefix) |
| return false; |
| *arg = str.substr(prefix_size); |
| return true; |
| } |
| |
| zx_handle_t Launch(const std::vector<std::string>& args) { |
| zx_handle_t subprocess = ZX_HANDLE_INVALID; |
| if (!args.size()) |
| return subprocess; |
| |
| std::vector<const char*> raw_args; |
| for (const auto& item : args) { |
| raw_args.push_back(item.c_str()); |
| } |
| raw_args.push_back(nullptr); |
| |
| zx_status_t status = fdio_spawn(ZX_HANDLE_INVALID, FDIO_SPAWN_CLONE_ALL, |
| raw_args[0], raw_args.data(), &subprocess); |
| |
| if (status != ZX_OK) { |
| FXL_LOG(ERROR) << "Subprocess launch failed: \"" << status |
| << "\" Did you provide the full path to the tool?"; |
| } |
| |
| return subprocess; |
| } |
| |
| bool WaitForExit(zx_handle_t process, int* exit_code) { |
| zx_signals_t signals_observed = 0; |
| zx_status_t status = zx_object_wait_one(process, ZX_TASK_TERMINATED, |
| ZX_TIME_INFINITE, &signals_observed); |
| |
| if (status != ZX_OK) { |
| FXL_LOG(ERROR) << "zx_object_wait_one failed, status: " << status; |
| return false; |
| } |
| |
| zx_info_process_t proc_info; |
| status = zx_object_get_info(process, ZX_INFO_PROCESS, &proc_info, |
| sizeof(proc_info), nullptr, nullptr); |
| if (status != ZX_OK) { |
| FXL_LOG(ERROR) << "zx_object_get_info failed, status: " << status; |
| return false; |
| } |
| |
| *exit_code = proc_info.return_code; |
| return true; |
| } |
| |
| bool LookupBufferingMode(const std::string& mode_name, |
| fuchsia::tracing::BufferingMode* out_mode) { |
| for (const auto& mode : kBufferingModes) { |
| if (mode_name == mode.name) { |
| *out_mode = mode.mode; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool ParseBoolean(const fxl::StringView& arg, bool* out_value) { |
| if (arg == "" || arg == "true") { |
| *out_value = true; |
| } else if (arg == "false") { |
| *out_value = false; |
| } else { |
| return false; |
| } |
| return true; |
| } |
| |
| void CheckCommandLineOverride(const char* name, bool present_in_spec) { |
| if (present_in_spec) { |
| FXL_LOG(WARNING) << "The " << name << " passed on the command line" |
| << "override value(s) from the tspec file."; |
| } |
| } |
| |
| // Helper so call sites don't have to type !!object_as_unique_ptr. |
| template <typename T> |
| void CheckCommandLineOverride(const char* name, const T& object) { |
| CheckCommandLineOverride(name, !!object); |
| } |
| |
| } // namespace |
| |
| bool Record::Options::Setup(const fxl::CommandLine& command_line) { |
| const std::unordered_set<std::string> known_options = {kSpecFile, |
| kCategories, |
| kAppendArgs, |
| kOutputFile, |
| kCompress, |
| kDuration, |
| kDetach, |
| kDecouple, |
| kLaunchpad, |
| kSpawn, |
| kBufferSize, |
| kBufferingMode, |
| kBenchmarkResultsFile, |
| kTestSuite}; |
| |
| for (auto& option : command_line.options()) { |
| if (known_options.count(option.name) == 0) { |
| FXL_LOG(ERROR) << "Unknown option: " << option.name; |
| return false; |
| } |
| } |
| |
| Spec spec{}; |
| size_t index = 0; |
| // Read the spec file first. Arguments passed on the command line override the |
| // spec. |
| // --spec-file=<file> |
| if (command_line.HasOption(kSpecFile, &index)) { |
| std::string spec_file_path = command_line.options()[index].value; |
| if (!files::IsFile(spec_file_path)) { |
| FXL_LOG(ERROR) << spec_file_path << " is not a file"; |
| return false; |
| } |
| |
| std::string content; |
| if (!files::ReadFileToString(spec_file_path, &content)) { |
| FXL_LOG(ERROR) << "Can't read " << spec_file_path; |
| return false; |
| } |
| |
| if (!DecodeSpec(content, &spec)) { |
| FXL_LOG(ERROR) << "Can't decode " << spec_file_path; |
| return false; |
| } |
| |
| if (spec.test_name) |
| test_name = *spec.test_name; |
| if (spec.app) |
| app = *spec.app; |
| if (spec.args) |
| args = *spec.args; |
| if (spec.spawn) |
| spawn = *spec.spawn; |
| if (spec.categories) |
| categories = *spec.categories; |
| if (spec.buffering_mode) { |
| if (!LookupBufferingMode(*spec.buffering_mode, &buffering_mode)) { |
| FXL_LOG(ERROR) << "Unknown spec parameter buffering-mode: " |
| << spec.buffering_mode; |
| return false; |
| } |
| } |
| if (spec.buffer_size_in_mb) |
| buffer_size_megabytes = *spec.buffer_size_in_mb; |
| if (spec.duration) |
| duration = *spec.duration; |
| if (spec.measurements) |
| measurements = *spec.measurements; |
| if (spec.test_suite_name) |
| test_suite = *spec.test_suite_name; |
| } |
| |
| // --categories=<cat1>,<cat2>,... |
| if (command_line.HasOption(kCategories, &index)) { |
| categories = |
| fxl::SplitStringCopy(command_line.options()[index].value, ",", |
| fxl::kTrimWhitespace, fxl::kSplitWantNonEmpty); |
| CheckCommandLineOverride("categories", spec.categories); |
| } |
| |
| // --append-args=<arg1>,<arg2>,... |
| // This option may be repeated, all args are added in order. |
| // These arguments are added after either of spec.args or the command line |
| // positional args. |
| std::vector<std::string> append_args; |
| if (command_line.HasOption(kAppendArgs, nullptr)) { |
| auto all_append_args = command_line.GetOptionValues(kAppendArgs); |
| for (const auto& arg : all_append_args) { |
| auto args = fxl::SplitStringCopy(arg, ",", fxl::kTrimWhitespace, |
| fxl::kSplitWantNonEmpty); |
| std::move(std::begin(args), std::end(args), |
| std::back_inserter(append_args)); |
| } |
| } |
| |
| // --output-file=<file> |
| if (command_line.HasOption(kOutputFile, &index)) { |
| output_file_name = command_line.options()[index].value; |
| } |
| |
| // --compress |
| if (command_line.HasOption(kCompress, nullptr)) { |
| compress = true; |
| if (!command_line.HasOption(kOutputFile, nullptr)) { |
| output_file_name += ".gz"; |
| } |
| } |
| |
| // --duration=<seconds> |
| if (command_line.HasOption(kDuration, &index)) { |
| uint64_t seconds; |
| if (!fxl::StringToNumberWithError(command_line.options()[index].value, |
| &seconds)) { |
| FXL_LOG(ERROR) << "Failed to parse command-line option " << kDuration |
| << ": " << command_line.options()[index].value; |
| return false; |
| } |
| duration = fxl::TimeDelta::FromSeconds(seconds); |
| CheckCommandLineOverride("duration", spec.duration); |
| } |
| |
| // --detach |
| detach = command_line.HasOption(kDetach); |
| |
| // --decouple |
| decouple = command_line.HasOption(kDecouple); |
| |
| // --spawn |
| // --launchpad is a deprecated spelling |
| { |
| size_t spawn_index, launchpad_index; |
| auto have_spawn = command_line.HasOption(kSpawn, &spawn_index); |
| auto have_launchpad = command_line.HasOption(kLaunchpad, &launchpad_index); |
| if (have_spawn && have_launchpad) { |
| FXL_LOG(ERROR) << "Specify only one of " << kSpawn << ", " << kLaunchpad; |
| return false; |
| } |
| if (have_spawn) { |
| auto arg = command_line.options()[spawn_index].value; |
| if (!ParseBoolean(arg, &spawn)) { |
| FXL_LOG(ERROR) << "Failed to parse command-line option " << kSpawn |
| << ": " << arg; |
| } |
| CheckCommandLineOverride("spawn", spec.spawn); |
| } |
| if (have_launchpad) { |
| FXL_LOG(WARNING) << "Option " << kLaunchpad << " is deprecated" |
| << ", use " << kSpawn << " instead"; |
| auto arg = command_line.options()[launchpad_index].value; |
| if (!ParseBoolean(arg, &spawn)) { |
| FXL_LOG(ERROR) << "Failed to parse command-line option " << kLaunchpad |
| << ": " << arg; |
| } |
| CheckCommandLineOverride("spawn", spec.spawn); |
| } |
| } |
| |
| // --buffer-size=<megabytes> |
| if (command_line.HasOption(kBufferSize, &index)) { |
| uint32_t megabytes; |
| if (!fxl::StringToNumberWithError(command_line.options()[index].value, |
| &megabytes)) { |
| FXL_LOG(ERROR) << "Failed to parse command-line option " << kBufferSize |
| << ": " << command_line.options()[index].value; |
| return false; |
| } |
| buffer_size_megabytes = megabytes; |
| CheckCommandLineOverride("buffer-size", spec.buffer_size_in_mb); |
| } |
| |
| // --buffering-mode=oneshot|circular|streaming |
| if (command_line.HasOption(kBufferingMode, &index)) { |
| if (!LookupBufferingMode(command_line.options()[index].value, |
| &buffering_mode)) { |
| FXL_LOG(ERROR) << "Failed to parse command-line option " << kBufferingMode |
| << ": " << command_line.options()[index].value; |
| return false; |
| } |
| CheckCommandLineOverride("buffering-mode", spec.buffering_mode); |
| } |
| |
| // --benchmark-results-file=<file> |
| if (command_line.HasOption(kBenchmarkResultsFile, &index)) { |
| benchmark_results_file = command_line.options()[index].value; |
| } |
| |
| // --test-suite=<test-suite-name> |
| if (command_line.HasOption(kTestSuite, &index)) { |
| test_suite = command_line.options()[index].value; |
| CheckCommandLineOverride("test-suite-name", spec.test_suite_name); |
| } |
| |
| // <command> <args...> |
| const auto& positional_args = command_line.positional_args(); |
| if (!positional_args.empty()) { |
| app = positional_args[0]; |
| args = std::vector<std::string>(positional_args.begin() + 1, |
| positional_args.end()); |
| CheckCommandLineOverride("app,args", spec.app || spec.args); |
| } |
| |
| // Now that we've processed positional args we can append --append-args args. |
| std::move(std::begin(append_args), std::end(append_args), |
| std::back_inserter(args)); |
| |
| return true; |
| } |
| |
| Command::Info Record::Describe() { |
| return Command::Info{ |
| [](component::StartupContext* context) { |
| return std::make_unique<Record>(context); |
| }, |
| "record", |
| "starts tracing and records data", |
| {{"spec-file=[none]", "Tracing specification file"}, |
| {"output-file=[/data/trace.json]", |
| "Trace data is stored in this file. " |
| "If the output file is \"tcp:TCP-ADDRESS\" then the output is streamed " |
| "to that address. This option is generally only used by traceutil."}, |
| {"compress=[false]", |
| "Compress trace output. This option is ignored " |
| "when streaming over a TCP socket."}, |
| {"duration=[10]", |
| "Trace will be active for this many seconds after the session has been " |
| "started. The provided value must be integral."}, |
| {"categories=[\"\"]", "Categories that should be enabled for tracing"}, |
| {"append-args=[\"\"]", |
| "Additional args for the app being traced, appended to those from the " |
| "spec file, if any. The value is a comma-separated list of arguments " |
| "to pass. This option may be repeated, arguments are added in order."}, |
| {"detach=[false]", |
| "Don't stop the traced program when tracing finished"}, |
| {"decouple=[false]", "Don't stop tracing when the traced program exits"}, |
| {"spawn=[false]", |
| "Use fdio_spawn to run a legacy app. Detach will have no effect when " |
| "using this option. May also be spelled --launchpad (deprecated)."}, |
| {"buffer-size=[4]", |
| "Maximum size of trace buffer for each provider in megabytes"}, |
| {"buffering-mode=oneshot|circular|streaming", |
| "The buffering mode to use"}, |
| {"benchmark-results-file=[none]", |
| "Destination for exported benchmark results"}, |
| {"test-suite=[none]", |
| "Test suite name to put into the exported benchmark results file. " |
| "This is used by the Catapult dashboard. This argument is required if " |
| "the results are uploaded to the Catapult dashboard (using " |
| "bin/catapult_converter)"}, |
| {"[command args]", |
| "Run program before starting trace. The program is terminated when " |
| "tracing ends unless --detach is specified"}}}; |
| } |
| |
| Record::Record(component::StartupContext* context) |
| : CommandWithTraceController(context), weak_ptr_factory_(this) {} |
| |
| static bool TcpAddrFromString(fxl::StringView address, fxl::StringView port, |
| addrinfo* out_addr) { |
| struct addrinfo hints; |
| memset(&hints, 0, sizeof(hints)); |
| hints.ai_family = AF_UNSPEC; |
| hints.ai_socktype = SOCK_STREAM; |
| hints.ai_protocol = IPPROTO_TCP; |
| hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV; |
| |
| addrinfo* addrinfos; |
| int errcode = getaddrinfo(address.ToString().c_str(), port.ToString().c_str(), |
| &hints, &addrinfos); |
| if (errcode != 0) { |
| FXL_LOG(ERROR) << "Failed to getaddrinfo for address " << address << ":" |
| << port << ": " << gai_strerror(errcode); |
| return false; |
| } |
| if (addrinfos == nullptr) { |
| FXL_LOG(ERROR) << "No matching addresses found for " << address << ":" |
| << port; |
| return false; |
| } |
| |
| *out_addr = *addrinfos; |
| freeaddrinfo(addrinfos); |
| return true; |
| } |
| |
| static std::unique_ptr<std::ostream> ConnectToTraceSaver( |
| fxl::StringView address) { |
| FXL_LOG(INFO) << "Connecting to " << address; |
| |
| size_t colon = address.rfind(':'); |
| if (colon == address.npos) { |
| FXL_LOG(ERROR) << "TCP address is missing port: " << address; |
| return nullptr; |
| } |
| |
| fxl::StringView ip_addr_str(address.substr(0, colon)); |
| fxl::StringView port_str(address.substr(colon + 1)); |
| |
| // [::1] -> ::1 |
| ip_addr_str = fxl::TrimString(ip_addr_str, "[]"); |
| |
| addrinfo tcp_addr; |
| if (!TcpAddrFromString(ip_addr_str, port_str, &tcp_addr)) { |
| return nullptr; |
| } |
| |
| fxl::UniqueFD fd(socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)); |
| if (!fd.is_valid()) { |
| FXL_LOG(ERROR) << "Failed to create socket: " << strerror(errno); |
| return nullptr; |
| } |
| |
| if (connect(fd.get(), tcp_addr.ai_addr, tcp_addr.ai_addrlen) < 0) { |
| FXL_LOG(ERROR) << "Failed to connect: " << strerror(errno); |
| return nullptr; |
| } |
| |
| auto ofstream = std::make_unique<std::ofstream>(); |
| ofstream->__open(fd.release(), std::ios_base::out); |
| FXL_DCHECK(ofstream->is_open()); |
| return ofstream; |
| } |
| |
| static std::unique_ptr<std::ostream> OpenOutputStream( |
| const std::string& output_file_name, bool compress) { |
| std::unique_ptr<std::ostream> out_stream; |
| fxl::StringView address; |
| if (BeginsWith(output_file_name, kTcpPrefix, &address)) { |
| out_stream = ConnectToTraceSaver(address); |
| } else if (compress) { |
| // TODO(dje): Compressing a network stream is not supported. |
| auto gzstream = std::make_unique<gzofstream>( |
| output_file_name.c_str(), std::ios_base::out | std::ios_base::trunc); |
| if (gzstream->is_open()) { |
| out_stream = std::move(gzstream); |
| } |
| } else { |
| auto ofstream = std::make_unique<std::ofstream>( |
| output_file_name, std::ios_base::out | std::ios_base::trunc); |
| if (ofstream->is_open()) { |
| out_stream = std::move(ofstream); |
| } |
| } |
| return out_stream; |
| } |
| |
| void Record::Start(const fxl::CommandLine& command_line) { |
| if (!options_.Setup(command_line)) { |
| FXL_LOG(ERROR) << "Error parsing options from command line - aborting"; |
| Done(1); |
| return; |
| } |
| |
| std::unique_ptr<std::ostream> out_stream = |
| OpenOutputStream(options_.output_file_name, options_.compress); |
| if (!out_stream) { |
| FXL_LOG(ERROR) << "Failed to open " << options_.output_file_name |
| << " for writing"; |
| Done(1); |
| return; |
| } |
| |
| exporter_.reset(new ChromiumExporter(std::move(out_stream))); |
| tracer_.reset(new Tracer(trace_controller().get())); |
| if (!options_.measurements.duration.empty()) { |
| aggregate_events_ = true; |
| measure_duration_.reset( |
| new measure::MeasureDuration(options_.measurements.duration)); |
| } |
| if (!options_.measurements.time_between.empty()) { |
| aggregate_events_ = true; |
| measure_time_between_.reset( |
| new measure::MeasureTimeBetween(options_.measurements.time_between)); |
| } |
| if (!options_.measurements.argument_value.empty()) { |
| aggregate_events_ = true; |
| measure_argument_value_.reset(new measure::MeasureArgumentValue( |
| options_.measurements.argument_value)); |
| } |
| |
| tracing_ = true; |
| |
| fuchsia::tracing::TraceOptions trace_options; |
| trace_options.categories = |
| fxl::To<fidl::VectorPtr<std::string>>(options_.categories); |
| trace_options.buffer_size_megabytes_hint = options_.buffer_size_megabytes; |
| // TODO(dje): start_timeout_milliseconds |
| trace_options.buffering_mode = options_.buffering_mode; |
| |
| tracer_->Start( |
| std::move(trace_options), |
| [this](trace::Record record) { |
| exporter_->ExportRecord(record); |
| |
| if (aggregate_events_ && record.type() == trace::RecordType::kEvent) { |
| events_.push_back(std::move(record)); |
| } |
| }, |
| [](fbl::String error) { FXL_LOG(ERROR) << error.c_str(); }, |
| [this] { |
| if (!options_.app.empty()) |
| options_.spawn ? LaunchTool() : LaunchApp(); |
| StartTimer(); |
| }, |
| [this] { DoneTrace(); }); |
| } |
| |
| void Record::StopTrace(int32_t return_code) { |
| if (tracing_) { |
| out() << "Stopping trace..." << std::endl; |
| tracing_ = false; |
| return_code_ = return_code; |
| tracer_->Stop(); |
| } |
| } |
| |
| void Record::ProcessMeasurements() { |
| if (!events_.empty()) { |
| std::sort(std::begin(events_), std::end(events_), |
| [](const trace::Record& e1, const trace::Record& e2) { |
| return e1.GetEvent().timestamp < e2.GetEvent().timestamp; |
| }); |
| } |
| |
| for (const auto& event : events_) { |
| if (measure_duration_) { |
| measure_duration_->Process(event.GetEvent()); |
| } |
| if (measure_time_between_) { |
| measure_time_between_->Process(event.GetEvent()); |
| } |
| if (measure_argument_value_) { |
| measure_argument_value_->Process(event.GetEvent()); |
| } |
| } |
| |
| std::unordered_map<uint64_t, std::vector<trace_ticks_t>> ticks; |
| if (measure_duration_) { |
| ticks.insert(measure_duration_->results().begin(), |
| measure_duration_->results().end()); |
| } |
| if (measure_time_between_) { |
| ticks.insert(measure_time_between_->results().begin(), |
| measure_time_between_->results().end()); |
| } |
| if (measure_argument_value_) { |
| ticks.insert(measure_argument_value_->results().begin(), |
| measure_argument_value_->results().end()); |
| } |
| |
| uint64_t ticks_per_second = zx_ticks_per_second(); |
| FXL_DCHECK(ticks_per_second); |
| std::vector<measure::Result> results = |
| measure::ComputeResults(options_.measurements, ticks, ticks_per_second); |
| |
| // Fail and quit if any of the measurements has empty results. This is so that |
| // we can notice when benchmarks break (e.g. in CQ or on perfbots). |
| bool errored = false; |
| for (auto& result : results) { |
| if (result.values.empty()) { |
| FXL_LOG(ERROR) << "No results for measurement \"" << result.label |
| << "\"."; |
| errored = true; |
| } |
| } |
| OutputResults(out(), results); |
| if (errored) { |
| FXL_LOG(ERROR) << "One or more measurements had empty results. Quitting."; |
| Done(1); |
| return; |
| } |
| |
| if (!options_.benchmark_results_file.empty()) { |
| for (auto& result : results) { |
| result.test_suite = options_.test_suite; |
| } |
| if (!ExportResults(options_.benchmark_results_file, results)) { |
| FXL_LOG(ERROR) << "Failed to write benchmark results to " |
| << options_.benchmark_results_file; |
| Done(1); |
| return; |
| } |
| out() << "Benchmark results written to " << options_.benchmark_results_file |
| << std::endl; |
| } |
| |
| Done(return_code_); |
| } |
| |
| void Record::DoneTrace() { |
| tracer_.reset(); |
| exporter_.reset(); |
| |
| out() << "Trace file written to " << options_.output_file_name << std::endl; |
| |
| if (measure_duration_ || measure_time_between_ || measure_argument_value_) { |
| ProcessMeasurements(); |
| } else { |
| Done(return_code_); |
| } |
| } |
| |
| void Record::LaunchApp() { |
| fuchsia::sys::LaunchInfo launch_info; |
| launch_info.url = fidl::StringPtr(options_.app); |
| launch_info.arguments = |
| fxl::To<fidl::VectorPtr<std::string>>(options_.args); |
| |
| if (FXL_VLOG_IS_ON(1)) { |
| FXL_VLOG(1) << "Launching: " << launch_info.url << " " |
| << fxl::JoinStrings(options_.args, " "); |
| } else { |
| out() << "Launching: " << launch_info.url << std::endl; |
| } |
| |
| context()->launcher()->CreateComponent(std::move(launch_info), |
| component_controller_.NewRequest()); |
| component_controller_.set_error_handler([this](zx_status_t error) { |
| out() << "Application terminated" << std::endl; |
| if (!options_.decouple) |
| // The trace might have been already stopped by the |Wait()| callback. In |
| // that case, |StopTrace| below does nothing. |
| StopTrace(-1); |
| }); |
| component_controller_.events().OnTerminated = |
| [this](int64_t return_code, |
| fuchsia::sys::TerminationReason termination_reason) { |
| out() << "Application exited with return code " << return_code |
| << std::endl; |
| if (!options_.decouple) |
| StopTrace(return_code); |
| }; |
| if (options_.detach) { |
| component_controller_->Detach(); |
| } |
| } |
| |
| void Record::LaunchTool() { |
| std::vector<std::string> all_args = {options_.app}; |
| all_args.insert(all_args.end(), options_.args.begin(), options_.args.end()); |
| |
| if (FXL_VLOG_IS_ON(1)) { |
| FXL_VLOG(1) << "Spawning: " << fxl::JoinStrings(all_args, " "); |
| } else { |
| out() << "Spawning: " << options_.app << std::endl; |
| } |
| |
| zx_handle_t process = Launch(all_args); |
| if (process == ZX_HANDLE_INVALID) { |
| StopTrace(-1); |
| FXL_LOG(ERROR) << "Unable to launch " << options_.app; |
| return; |
| } |
| |
| int exit_code = -1; |
| if (!WaitForExit(process, &exit_code)) |
| FXL_LOG(ERROR) << "Unable to get return code"; |
| |
| out() << "Application exited with return code " << exit_code << std::endl; |
| if (!options_.decouple) |
| StopTrace(exit_code); |
| } |
| |
| void Record::StartTimer() { |
| async::PostDelayedTask( |
| async_get_default_dispatcher(), |
| [weak = weak_ptr_factory_.GetWeakPtr()] { |
| if (weak) |
| weak->StopTrace(0); |
| }, |
| zx::nsec(options_.duration.ToNanoseconds())); |
| out() << "Starting trace; will stop in " << options_.duration.ToSecondsF() |
| << " seconds..." << std::endl; |
| } |
| |
| } // namespace tracing |
