chromecast/browser/cast_browser_main_parts.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chromecast/browser/cast_browser_main_parts.h"
   6
   7 #include <string>
   8 #if !defined(OS_ANDROID)
   9 #include <signal.h>
  10 #include <sys/prctl.h>
  11 #endif
  12
  13 #include "base/command_line.h"
  14 #include "base/files/file_util.h"
  15 #include "base/message_loop/message_loop.h"
  16 #include "base/path_service.h"
  17 #include "base/prefs/pref_registry_simple.h"
  18 #include "base/run_loop.h"
  19 #include "base/thread_task_runner_handle.h"
  20 #include "cc/base/switches.h"
  21 #include "chromecast/base/cast_paths.h"
  22 #include "chromecast/base/cast_sys_info_util.h"
  23 #include "chromecast/base/chromecast_switches.h"
  24 #include "chromecast/base/metrics/cast_metrics_helper.h"
  25 #include "chromecast/base/metrics/grouped_histogram.h"
  26 #include "chromecast/browser/cast_browser_context.h"
  27 #include "chromecast/browser/cast_browser_process.h"
  28 #include "chromecast/browser/cast_content_browser_client.h"
  29 #include "chromecast/browser/cast_net_log.h"
  30 #include "chromecast/browser/devtools/remote_debugging_server.h"
  31 #include "chromecast/browser/metrics/cast_metrics_prefs.h"
  32 #include "chromecast/browser/metrics/cast_metrics_service_client.h"
  33 #include "chromecast/browser/pref_service_helper.h"
  34 #include "chromecast/browser/url_request_context_factory.h"
  35 #include "chromecast/common/platform_client_auth.h"
  36 #include "chromecast/media/base/key_systems_common.h"
  37 #include "chromecast/media/base/media_message_loop.h"
  38 #include "chromecast/net/connectivity_checker.h"
  39 #include "chromecast/public/cast_media_shlib.h"
  40 #include "chromecast/public/cast_sys_info.h"
  41 #include "chromecast/service/cast_service.h"
  42 #include "content/public/browser/browser_thread.h"
  43 #include "content/public/browser/gpu_data_manager.h"
  44 #include "content/public/common/content_switches.h"
  45 #include "media/audio/audio_manager.h"
  46 #include "media/audio/audio_manager_factory.h"
  47 #include "media/base/browser_cdm_factory.h"
  48 #include "media/base/media.h"
  49 #include "ui/compositor/compositor_switches.h"
  50
  51 #if defined(OS_ANDROID)
  52 #include "chromecast/app/android/crash_handler.h"
  53 #include "chromecast/browser/media/cast_media_client_android.h"
  54 #include "components/crash/browser/crash_dump_manager_android.h"
  55 #include "media/base/android/media_client_android.h"
  56 #include "net/android/network_change_notifier_factory_android.h"
  57 #else
  58 #include "chromecast/net/network_change_notifier_factory_cast.h"
  59 #endif
  60
  61 #if defined(USE_AURA)
  62 #include "chromecast/graphics/cast_screen.h"
  63 #include "ui/aura/env.h"
  64 #include "ui/gfx/screen.h"
  65 #endif
  66
  67 namespace {
  68
  69 #if !defined(OS_ANDROID)
  70 int kSignalsToRunClosure[] = { SIGTERM, SIGINT, };
  71
  72 // Closure to run on SIGTERM and SIGINT.
  73 base::Closure* g_signal_closure = NULL;
  74
  75 void RunClosureOnSignal(int signum) {
  76   LOG(ERROR) << "Got signal " << signum;
  77   DCHECK(g_signal_closure);
  78   // Expect main thread got this signal. Otherwise, weak_ptr of run_loop will
  79   // crash the process.
  80   g_signal_closure->Run();
  81 }
  82
  83 void RegisterClosureOnSignal(const base::Closure& closure) {
  84   DCHECK(!g_signal_closure);
  85   DCHECK_GT(arraysize(kSignalsToRunClosure), 0U);
  86
  87   // Allow memory leak by intention.
  88   g_signal_closure = new base::Closure(closure);
  89
  90   struct sigaction sa_new;
  91   memset(&sa_new, 0, sizeof(sa_new));
  92   sa_new.sa_handler = RunClosureOnSignal;
  93   sigfillset(&sa_new.sa_mask);
  94   sa_new.sa_flags = SA_RESTART;
  95
  96   for (size_t i = 0; i < arraysize(kSignalsToRunClosure); i++) {
  97     struct sigaction sa_old;
  98     if (sigaction(kSignalsToRunClosure[i], &sa_new, &sa_old) == -1) {
  99       NOTREACHED();
 100     } else {
 101       DCHECK_EQ(sa_old.sa_handler, SIG_DFL);
 102     }
 103   }
 104
 105   // Get the first signal to exit when the parent process dies.
 106   prctl(PR_SET_PDEATHSIG, kSignalsToRunClosure[0]);
 107 }
 108
 109 const int kKillOnAlarmTimeoutSec = 5;  // 5 seconds
 110
 111 void KillOnAlarm(int signum) {
 112   LOG(ERROR) << "Got alarm signal for termination: " << signum;
 113   raise(SIGKILL);
 114 }
 115
 116 void RegisterKillOnAlarm(int timeout_seconds) {
 117   struct sigaction sa_new;
 118   memset(&sa_new, 0, sizeof(sa_new));
 119   sa_new.sa_handler = KillOnAlarm;
 120   sigfillset(&sa_new.sa_mask);
 121   sa_new.sa_flags = SA_RESTART;
 122
 123   struct sigaction sa_old;
 124   if (sigaction(SIGALRM, &sa_new, &sa_old) == -1) {
 125     NOTREACHED();
 126   } else {
 127     DCHECK_EQ(sa_old.sa_handler, SIG_DFL);
 128   }
 129
 130   if (alarm(timeout_seconds) > 0)
 131     NOTREACHED() << "Previous alarm() was cancelled";
 132 }
 133
 134 void DeregisterKillOnAlarm() {
 135   // Explicitly cancel any outstanding alarm() calls.
 136   alarm(0);
 137
 138   struct sigaction sa_new;
 139   memset(&sa_new, 0, sizeof(sa_new));
 140   sa_new.sa_handler = SIG_DFL;
 141   sigfillset(&sa_new.sa_mask);
 142   sa_new.sa_flags = SA_RESTART;
 143
 144   struct sigaction sa_old;
 145   if (sigaction(SIGALRM, &sa_new, &sa_old) == -1) {
 146     NOTREACHED();
 147   } else {
 148     DCHECK_EQ(sa_old.sa_handler, KillOnAlarm);
 149   }
 150 }
 151 #endif  // !defined(OS_ANDROID)
 152
 153 }  // namespace
 154
 155 namespace chromecast {
 156 namespace shell {
 157
 158 namespace {
 159
 160 struct DefaultCommandLineSwitch {
 161   const char* const switch_name;
 162   const char* const switch_value;
 163 };
 164
 165 DefaultCommandLineSwitch g_default_switches[] = {
 166 #if defined(OS_ANDROID)
 167   // Disables Chromecast-specific WiFi-related features on ATV for now.
 168   { switches::kNoWifi, "" },
 169   { switches::kDisableGestureRequirementForMediaPlayback, ""},
 170 #endif
 171   // Always enable HTMLMediaElement logs.
 172   { switches::kBlinkPlatformLogChannels, "Media"},
 173 #if defined(DISABLE_DISPLAY)
 174   { switches::kDisableGpu, "" },
 175 #endif
 176 #if defined(OS_LINUX)
 177 #if defined(ARCH_CPU_X86_FAMILY)
 178   // This is needed for now to enable the egltest Ozone platform to work with
 179   // current Linux/NVidia OpenGL drivers.
 180   { switches::kIgnoreGpuBlacklist, ""},
 181 #elif defined(ARCH_CPU_ARM_FAMILY)
 182   // On Linux arm, enable CMA pipeline by default.
 183   { switches::kEnableCmaMediaPipeline, "" },
 184 #if !defined(DISABLE_DISPLAY)
 185   { switches::kEnableHardwareOverlays, "" },
 186 #endif
 187 #endif
 188 #endif  // defined(OS_LINUX)
 189   // Needed to fix a bug where the raster thread doesn't get scheduled for a
 190   // substantial time (~5 seconds).  See https://crbug.com/441895.
 191   { switches::kUseNormalPriorityForTileTaskWorkerThreads, "" },
 192   // Needed so that our call to GpuDataManager::SetGLStrings doesn't race
 193   // against GPU process creation (which is otherwise triggered from
 194   // BrowserThreadsStarted).  The GPU process will be created as soon as a
 195   // renderer needs it, which always happens after main loop starts.
 196   { switches::kDisableGpuEarlyInit, "" },
 197   { NULL, NULL },  // Termination
 198 };
 199
 200 void AddDefaultCommandLineSwitches(base::CommandLine* command_line) {
 201   int i = 0;
 202   while (g_default_switches[i].switch_name != NULL) {
 203     command_line->AppendSwitchASCII(
 204         std::string(g_default_switches[i].switch_name),
 205         std::string(g_default_switches[i].switch_value));
 206     ++i;
 207   }
 208 }
 209
 210 }  // namespace
 211
 212 CastBrowserMainParts::CastBrowserMainParts(
 213     const content::MainFunctionParams& parameters,
 214     URLRequestContextFactory* url_request_context_factory,
 215     scoped_ptr<::media::AudioManagerFactory> audio_manager_factory)
 216     : BrowserMainParts(),
 217       cast_browser_process_(new CastBrowserProcess()),
 218       parameters_(parameters),
 219       url_request_context_factory_(url_request_context_factory),
 220       audio_manager_factory_(audio_manager_factory.Pass()),
 221       net_log_(new CastNetLog()) {
 222   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 223   AddDefaultCommandLineSwitches(command_line);
 224 }
 225
 226 CastBrowserMainParts::~CastBrowserMainParts() {
 227 }
 228
 229 void CastBrowserMainParts::PreMainMessageLoopStart() {
 230   // GroupedHistograms needs to be initialized before any threads are created
 231   // to prevent race conditions between calls to Preregister and those threads
 232   // attempting to collect metrics.
 233   // This call must also be before NetworkChangeNotifier, as it generates
 234   // Net/DNS metrics.
 235   metrics::PreregisterAllGroupedHistograms();
 236
 237   // Set the platform's implementation of AudioManagerFactory.
 238   if (audio_manager_factory_)
 239     ::media::AudioManager::SetFactory(audio_manager_factory_.release());
 240
 241 #if defined(OS_ANDROID)
 242   net::NetworkChangeNotifier::SetFactory(
 243       new net::NetworkChangeNotifierFactoryAndroid());
 244 #else
 245   net::NetworkChangeNotifier::SetFactory(
 246       new NetworkChangeNotifierFactoryCast());
 247 #endif  // defined(OS_ANDROID)
 248 }
 249
 250 void CastBrowserMainParts::PostMainMessageLoopStart() {
 251   cast_browser_process_->SetMetricsHelper(make_scoped_ptr(
 252       new metrics::CastMetricsHelper(base::ThreadTaskRunnerHandle::Get())));
 253
 254 #if defined(OS_ANDROID)
 255   base::MessageLoopForUI::current()->Start();
 256 #endif  // defined(OS_ANDROID)
 257 }
 258
 259 int CastBrowserMainParts::PreCreateThreads() {
 260 #if defined(OS_ANDROID)
 261   // GPU process is started immediately after threads are created, requiring
 262   // CrashDumpManager to be initialized beforehand.
 263   base::FilePath crash_dumps_dir;
 264   if (!chromecast::CrashHandler::GetCrashDumpLocation(&crash_dumps_dir)) {
 265     LOG(ERROR) << "Could not find crash dump location.";
 266   }
 267   cast_browser_process_->SetCrashDumpManager(
 268       make_scoped_ptr(new breakpad::CrashDumpManager(crash_dumps_dir)));
 269 #else
 270   base::FilePath home_dir;
 271   CHECK(PathService::Get(DIR_CAST_HOME, &home_dir));
 272   if (!base::CreateDirectory(home_dir))
 273     return 1;
 274 #endif
 275
 276 #if defined(USE_AURA)
 277   // Screen can (and should) exist even with no displays connected. Its presence
 278   // is assumed as an interface to access display information, e.g. from metrics
 279   // code.  See CastContentWindow::CreateWindowTree for update when resolution
 280   // is available.
 281   cast_browser_process_->SetCastScreen(make_scoped_ptr(new CastScreen));
 282   DCHECK(!gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE));
 283   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
 284                                  cast_browser_process_->cast_screen());
 285 #endif
 286   return 0;
 287 }
 288
 289 void CastBrowserMainParts::PreMainMessageLoopRun() {
 290 #if !defined(OS_ANDROID)
 291   // Set GL strings so GPU config code can make correct feature blacklisting/
 292   // whitelisting decisions.
 293   // Note: SetGLStrings MUST be called after GpuDataManager::Initialize.
 294   scoped_ptr<CastSysInfo> sys_info = CreateSysInfo();
 295   content::GpuDataManager::GetInstance()->SetGLStrings(
 296       sys_info->GetGlVendor(), sys_info->GetGlRenderer(),
 297       sys_info->GetGlVersion());
 298 #endif  // !defined(OS_ANDROID)
 299
 300   scoped_refptr<PrefRegistrySimple> pref_registry(new PrefRegistrySimple());
 301   metrics::RegisterPrefs(pref_registry.get());
 302   cast_browser_process_->SetPrefService(
 303       PrefServiceHelper::CreatePrefService(pref_registry.get()));
 304
 305   const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
 306 #if defined(OS_ANDROID)
 307   ::media::SetMediaClientAndroid(new media::CastMediaClientAndroid());
 308 #else
 309   if (cmd_line->HasSwitch(switches::kEnableCmaMediaPipeline)) {
 310     scoped_ptr<::media::BrowserCdmFactory> cdm_factory =
 311         cast_browser_process_->browser_client()->CreateBrowserCdmFactory();
 312     ::media::SetBrowserCdmFactory(cdm_factory.release());
 313   }
 314 #endif  // defined(OS_ANDROID)
 315
 316   cast_browser_process_->SetConnectivityChecker(
 317       ConnectivityChecker::Create(
 318           content::BrowserThread::GetMessageLoopProxyForThread(
 319               content::BrowserThread::IO)));
 320
 321   cast_browser_process_->SetNetLog(net_log_.get());
 322
 323   url_request_context_factory_->InitializeOnUIThread(net_log_.get());
 324
 325   cast_browser_process_->SetBrowserContext(
 326       make_scoped_ptr(new CastBrowserContext(url_request_context_factory_)));
 327   cast_browser_process_->SetMetricsServiceClient(
 328       metrics::CastMetricsServiceClient::Create(
 329           content::BrowserThread::GetBlockingPool(),
 330           cast_browser_process_->pref_service(),
 331           cast_browser_process_->browser_context()->GetRequestContext()));
 332
 333   if (!PlatformClientAuth::Initialize())
 334     LOG(ERROR) << "PlatformClientAuth::Initialize failed.";
 335
 336   cast_browser_process_->SetRemoteDebuggingServer(make_scoped_ptr(
 337       new RemoteDebuggingServer(cast_browser_process_->browser_client()->
 338           EnableRemoteDebuggingImmediately())));
 339
 340   media::MediaMessageLoop::GetTaskRunner()->PostTask(
 341       FROM_HERE,
 342       base::Bind(&media::CastMediaShlib::Initialize, cmd_line->argv()));
 343   ::media::InitializeMediaLibrary();
 344
 345   cast_browser_process_->SetCastService(
 346       cast_browser_process_->browser_client()->CreateCastService(
 347           cast_browser_process_->browser_context(),
 348           cast_browser_process_->pref_service(),
 349           url_request_context_factory_->GetSystemGetter()));
 350   cast_browser_process_->cast_service()->Initialize();
 351
 352   // Initializing metrics service and network delegates must happen after cast
 353   // service is intialized because CastMetricsServiceClient and
 354   // CastNetworkDelegate may use components initialized by cast service.
 355   cast_browser_process_->metrics_service_client()
 356       ->Initialize(cast_browser_process_->cast_service());
 357   url_request_context_factory_->InitializeNetworkDelegates();
 358
 359   cast_browser_process_->cast_service()->Start();
 360 }
 361
 362 bool CastBrowserMainParts::MainMessageLoopRun(int* result_code) {
 363 #if defined(OS_ANDROID)
 364   // Android does not use native main MessageLoop.
 365   NOTREACHED();
 366   return true;
 367 #else
 368   base::RunLoop run_loop;
 369   base::Closure quit_closure(run_loop.QuitClosure());
 370   RegisterClosureOnSignal(quit_closure);
 371
 372   // If parameters_.ui_task is not NULL, we are running browser tests.
 373   if (parameters_.ui_task) {
 374     base::MessageLoop* message_loop = base::MessageLoopForUI::current();
 375     message_loop->PostTask(FROM_HERE, *parameters_.ui_task);
 376     message_loop->PostTask(FROM_HERE, quit_closure);
 377   }
 378
 379   run_loop.Run();
 380
 381   // Once the main loop has stopped running, we give the browser process a few
 382   // seconds to stop cast service and finalize all resources. If a hang occurs
 383   // and cast services refuse to terminate successfully, then we SIGKILL the
 384   // current process to avoid indefinte hangs.
 385   RegisterKillOnAlarm(kKillOnAlarmTimeoutSec);
 386
 387   cast_browser_process_->cast_service()->Stop();
 388   return true;
 389 #endif
 390 }
 391
 392 void CastBrowserMainParts::PostMainMessageLoopRun() {
 393 #if defined(OS_ANDROID)
 394   // Android does not use native main MessageLoop.
 395   NOTREACHED();
 396 #else
 397   cast_browser_process_->cast_service()->Finalize();
 398   cast_browser_process_->metrics_service_client()->Finalize();
 399   cast_browser_process_.reset();
 400
 401 #if defined(USE_AURA)
 402   aura::Env::DeleteInstance();
 403 #endif
 404
 405   DeregisterKillOnAlarm();
 406 #endif
 407 }
 408
 409 }  // namespace shell
 410 }  // namespace chromecast