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Issue 1309243004: Reland again [Startup Tracing] Add --trace-config-file flag (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix unit test Created 5 years, 3 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include <stdio.h> 5 #include <stdio.h>
6 #include <string.h> 6 #include <string.h>
7 7
8 #include <algorithm> 8 #include <algorithm>
9 #include <iostream> 9 #include <iostream>
10 10
11 #include "base/base_switches.h" 11 #include "base/base_switches.h"
12 #include "base/bind.h" 12 #include "base/bind.h"
13 #include "base/command_line.h" 13 #include "base/command_line.h"
14 #include "base/files/file_util.h" 14 #include "base/files/file_util.h"
15 #include "base/message_loop/message_loop.h" 15 #include "base/message_loop/message_loop.h"
16 #include "base/synchronization/waitable_event.h" 16 #include "base/synchronization/waitable_event.h"
17 #include "base/trace_event/trace_event.h" 17 #include "base/trace_event/trace_event.h"
18 #include "components/tracing/startup_tracing.h" 18 #include "components/tracing/trace_config_file.h"
19 #include "components/tracing/tracing_switches.h" 19 #include "components/tracing/tracing_switches.h"
20 #include "mandoline/app/core_services_initialization.h" 20 #include "mandoline/app/core_services_initialization.h"
21 #include "mandoline/app/desktop/launcher_process.h" 21 #include "mandoline/app/desktop/launcher_process.h"
22 #include "mojo/runner/context.h" 22 #include "mojo/runner/context.h"
23 #include "mojo/runner/switches.h" 23 #include "mojo/runner/switches.h"
24 24
25 namespace mandoline { 25 namespace mandoline {
26 namespace { 26 namespace {
27 27
28 // Whether we're currently tracing. 28 // Whether we're currently tracing.
(...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after
83 int LauncherProcessMain(int argc, char** argv) { 83 int LauncherProcessMain(int argc, char** argv) {
84 const base::CommandLine& command_line = 84 const base::CommandLine& command_line =
85 *base::CommandLine::ForCurrentProcess(); 85 *base::CommandLine::ForCurrentProcess();
86 if (command_line.HasSwitch(switches::kTraceStartup)) { 86 if (command_line.HasSwitch(switches::kTraceStartup)) {
87 g_tracing = true; 87 g_tracing = true;
88 base::trace_event::TraceConfig trace_config( 88 base::trace_event::TraceConfig trace_config(
89 command_line.GetSwitchValueASCII(switches::kTraceStartup), 89 command_line.GetSwitchValueASCII(switches::kTraceStartup),
90 base::trace_event::RECORD_UNTIL_FULL); 90 base::trace_event::RECORD_UNTIL_FULL);
91 base::trace_event::TraceLog::GetInstance()->SetEnabled( 91 base::trace_event::TraceLog::GetInstance()->SetEnabled(
92 trace_config, base::trace_event::TraceLog::RECORDING_MODE); 92 trace_config, base::trace_event::TraceLog::RECORDING_MODE);
93 } else { 93 } else if (tracing::TraceConfigFile::GetInstance()->IsEnabled()) {
94 // |g_tracing| is not touched in this case and Telemetry will stop tracing 94 g_tracing = true;
95 // on demand later. 95 base::trace_event::TraceLog::GetInstance()->SetEnabled(
96 tracing::EnableStartupTracingIfConfigFileExists(); 96 tracing::TraceConfigFile::GetInstance()->GetTraceConfig(),
97 base::trace_event::TraceLog::RECORDING_MODE);
97 } 98 }
98 99
99 // We want the runner::Context to outlive the MessageLoop so that pipes are 100 // We want the runner::Context to outlive the MessageLoop so that pipes are
100 // all gracefully closed / error-out before we try to shut the Context down. 101 // all gracefully closed / error-out before we try to shut the Context down.
101 mojo::runner::Context shell_context; 102 mojo::runner::Context shell_context;
102 InitCoreServicesForContext(&shell_context); 103 InitCoreServicesForContext(&shell_context);
103 { 104 {
104 base::MessageLoop message_loop; 105 base::MessageLoop message_loop;
105 if (!shell_context.Init()) { 106 if (!shell_context.Init()) {
106 return 0; 107 return 0;
(...skipping 13 matching lines...) Expand all
120 // Must be called before |message_loop| is destroyed. 121 // Must be called before |message_loop| is destroyed.
121 shell_context.Shutdown(); 122 shell_context.Shutdown();
122 } 123 }
123 124
124 if (g_tracing) 125 if (g_tracing)
125 StopTracingAndFlushToDisk(); 126 StopTracingAndFlushToDisk();
126 return 0; 127 return 0;
127 } 128 }
128 129
129 } // namespace mandoline 130 } // namespace mandoline
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