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_net_log.h"
  29 #include "chromecast/browser/devtools/remote_debugging_server.h"
  30 #include "chromecast/browser/metrics/cast_metrics_prefs.h"
  31 #include "chromecast/browser/metrics/cast_metrics_service_client.h"
  32 #include "chromecast/browser/pref_service_helper.h"
  33 #include "chromecast/browser/service/cast_service.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 "content/public/browser/browser_thread.h"
  42 #include "content/public/browser/gpu_data_manager.h"
  43 #include "content/public/common/content_switches.h"
  44 #include "media/audio/audio_manager.h"
  45 #include "media/audio/audio_manager_factory.h"
  46 #include "media/base/browser_cdm_factory.h"
  47 #include "media/base/media.h"
  48 #include "ui/compositor/compositor_switches.h"
  49
  50 #if defined(OS_ANDROID)
  51 #include "chromecast/app/android/crash_handler.h"
  52 #include "chromecast/browser/media/cast_media_client_android.h"
  53 #include "components/crash/browser/crash_dump_manager_android.h"
  54 #include "media/base/android/media_client_android.h"
  55 #include "net/android/network_change_notifier_factory_android.h"
  56 #else
  57 #include "chromecast/browser/media/cast_browser_cdm_factory.h"
  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::kEnableOverlayFullscreenVideo, ""},
 170   { switches::kDisableGestureRequirementForMediaPlayback, ""},
 171 #endif
 172   // Always enable HTMLMediaElement logs.
 173   { switches::kBlinkPlatformLogChannels, "Media"},
 174 #if defined(DISABLE_DISPLAY)
 175   { switches::kDisableGpu, "" },
 176 #endif
 177 #if defined(OS_LINUX)
 178 #if defined(ARCH_CPU_X86_FAMILY)
 179   // This is needed for now to enable the egltest Ozone platform to work with
 180   // current Linux/NVidia OpenGL drivers.
 181   { switches::kIgnoreGpuBlacklist, ""},
 182 #elif defined(ARCH_CPU_ARM_FAMILY)
 183   // On Linux arm, enable CMA pipeline by default.
 184   { switches::kEnableCmaMediaPipeline, "" },
 185 #if !defined(DISABLE_DISPLAY)
 186   { switches::kEnableHardwareOverlays, "" },
 187 #endif
 188 #endif
 189 #endif  // defined(OS_LINUX)
 190   // Needed to fix a bug where the raster thread doesn't get scheduled for a
 191   // substantial time (~5 seconds).  See https://crbug.com/441895.
 192   { switches::kUseNormalPriorityForTileTaskWorkerThreads, "" },
 193   { NULL, NULL },  // Termination
 194 };
 195
 196 void AddDefaultCommandLineSwitches(base::CommandLine* command_line) {
 197   int i = 0;
 198   while (g_default_switches[i].switch_name != NULL) {
 199     command_line->AppendSwitchASCII(
 200         std::string(g_default_switches[i].switch_name),
 201         std::string(g_default_switches[i].switch_value));
 202     ++i;
 203   }
 204 }
 205
 206 }  // namespace
 207
 208 CastBrowserMainParts::CastBrowserMainParts(
 209     const content::MainFunctionParams& parameters,
 210     URLRequestContextFactory* url_request_context_factory,
 211     scoped_ptr<::media::AudioManagerFactory> audio_manager_factory)
 212     : BrowserMainParts(),
 213       cast_browser_process_(new CastBrowserProcess()),
 214       parameters_(parameters),
 215       url_request_context_factory_(url_request_context_factory),
 216       audio_manager_factory_(audio_manager_factory.Pass()),
 217       net_log_(new CastNetLog()) {
 218   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 219   AddDefaultCommandLineSwitches(command_line);
 220 }
 221
 222 CastBrowserMainParts::~CastBrowserMainParts() {
 223 }
 224
 225 void CastBrowserMainParts::PreMainMessageLoopStart() {
 226   // GroupedHistograms needs to be initialized before any threads are created
 227   // to prevent race conditions between calls to Preregister and those threads
 228   // attempting to collect metrics.
 229   // This call must also be before NetworkChangeNotifier, as it generates
 230   // Net/DNS metrics.
 231   metrics::PreregisterAllGroupedHistograms();
 232
 233   // Set the platform's implementation of AudioManagerFactory.
 234   if (audio_manager_factory_)
 235     ::media::AudioManager::SetFactory(audio_manager_factory_.release());
 236
 237 #if defined(OS_ANDROID)
 238   net::NetworkChangeNotifier::SetFactory(
 239       new net::NetworkChangeNotifierFactoryAndroid());
 240 #else
 241   net::NetworkChangeNotifier::SetFactory(
 242       new NetworkChangeNotifierFactoryCast());
 243 #endif  // defined(OS_ANDROID)
 244 }
 245
 246 void CastBrowserMainParts::PostMainMessageLoopStart() {
 247   cast_browser_process_->SetMetricsHelper(make_scoped_ptr(
 248       new metrics::CastMetricsHelper(base::ThreadTaskRunnerHandle::Get())));
 249
 250 #if defined(OS_ANDROID)
 251   base::MessageLoopForUI::current()->Start();
 252 #endif  // defined(OS_ANDROID)
 253 }
 254
 255 int CastBrowserMainParts::PreCreateThreads() {
 256 #if defined(OS_ANDROID)
 257   // GPU process is started immediately after threads are created, requiring
 258   // CrashDumpManager to be initialized beforehand.
 259   base::FilePath crash_dumps_dir;
 260   if (!chromecast::CrashHandler::GetCrashDumpLocation(&crash_dumps_dir)) {
 261     LOG(ERROR) << "Could not find crash dump location.";
 262   }
 263   cast_browser_process_->SetCrashDumpManager(
 264       make_scoped_ptr(new breakpad::CrashDumpManager(crash_dumps_dir)));
 265 #else
 266   base::FilePath home_dir;
 267   CHECK(PathService::Get(DIR_CAST_HOME, &home_dir));
 268   if (!base::CreateDirectory(home_dir))
 269     return 1;
 270 #endif
 271
 272 #if defined(USE_AURA)
 273   // Screen can (and should) exist even with no displays connected. Its presence
 274   // is assumed as an interface to access display information, e.g. from metrics
 275   // code.  See CastContentWindow::CreateWindowTree for update when resolution
 276   // is available.
 277   cast_browser_process_->SetCastScreen(make_scoped_ptr(new CastScreen));
 278   DCHECK(!gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE));
 279   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
 280                                  cast_browser_process_->cast_screen());
 281 #endif
 282
 283 #if !defined(OS_ANDROID)
 284   // Set GL strings so GPU config code can make correct feature blacklisting/
 285   // whitelisting decisions.
 286   // Note: SetGLStrings MUST be called after GpuDataManager::Initialize.
 287   scoped_ptr<CastSysInfo> sys_info = CreateSysInfo();
 288   content::GpuDataManager::GetInstance()->SetGLStrings(
 289       sys_info->GetGlVendor(), sys_info->GetGlRenderer(),
 290       sys_info->GetGlVersion());
 291 #endif  // !defined(OS_ANDROID)
 292
 293   return 0;
 294 }
 295
 296 void CastBrowserMainParts::PreMainMessageLoopRun() {
 297   scoped_refptr<PrefRegistrySimple> pref_registry(new PrefRegistrySimple());
 298   metrics::RegisterPrefs(pref_registry.get());
 299   cast_browser_process_->SetPrefService(
 300       PrefServiceHelper::CreatePrefService(pref_registry.get()));
 301
 302   const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
 303 #if defined(OS_ANDROID)
 304   ::media::SetMediaClientAndroid(new media::CastMediaClientAndroid());
 305 #else
 306   if (cmd_line->HasSwitch(switches::kEnableCmaMediaPipeline))
 307     ::media::SetBrowserCdmFactory(new media::CastBrowserCdmFactory());
 308 #endif  // defined(OS_ANDROID)
 309
 310   cast_browser_process_->SetConnectivityChecker(
 311       ConnectivityChecker::Create(
 312           content::BrowserThread::GetMessageLoopProxyForThread(
 313               content::BrowserThread::IO)));
 314
 315   cast_browser_process_->SetNetLog(net_log_.get());
 316
 317   url_request_context_factory_->InitializeOnUIThread(net_log_.get());
 318
 319   cast_browser_process_->SetBrowserContext(
 320       make_scoped_ptr(new CastBrowserContext(url_request_context_factory_)));
 321   cast_browser_process_->SetMetricsServiceClient(
 322       metrics::CastMetricsServiceClient::Create(
 323           content::BrowserThread::GetBlockingPool(),
 324           cast_browser_process_->pref_service(),
 325           cast_browser_process_->browser_context()->GetRequestContext()));
 326
 327   if (!PlatformClientAuth::Initialize())
 328     LOG(ERROR) << "PlatformClientAuth::Initialize failed.";
 329
 330   cast_browser_process_->SetRemoteDebuggingServer(
 331       make_scoped_ptr(new RemoteDebuggingServer()));
 332
 333   media::MediaMessageLoop::GetTaskRunner()->PostTask(
 334       FROM_HERE,
 335       base::Bind(&media::CastMediaShlib::Initialize, cmd_line->argv()));
 336   ::media::InitializeMediaLibrary();
 337
 338   cast_browser_process_->SetCastService(CastService::Create(
 339       cast_browser_process_->browser_context(),
 340       cast_browser_process_->pref_service(),
 341       cast_browser_process_->metrics_service_client(),
 342       url_request_context_factory_->GetSystemGetter()));
 343   cast_browser_process_->cast_service()->Initialize();
 344
 345   // Initializing metrics service and network delegates must happen after cast
 346   // service is intialized because CastMetricsServiceClient and
 347   // CastNetworkDelegate may use components initialized by cast service.
 348   cast_browser_process_->metrics_service_client()
 349       ->Initialize(cast_browser_process_->cast_service());
 350   url_request_context_factory_->InitializeNetworkDelegates();
 351
 352   cast_browser_process_->cast_service()->Start();
 353 }
 354
 355 bool CastBrowserMainParts::MainMessageLoopRun(int* result_code) {
 356 #if defined(OS_ANDROID)
 357   // Android does not use native main MessageLoop.
 358   NOTREACHED();
 359   return true;
 360 #else
 361   base::RunLoop run_loop;
 362   base::Closure quit_closure(run_loop.QuitClosure());
 363   RegisterClosureOnSignal(quit_closure);
 364
 365   // If parameters_.ui_task is not NULL, we are running browser tests.
 366   if (parameters_.ui_task) {
 367     base::MessageLoop* message_loop = base::MessageLoopForUI::current();
 368     message_loop->PostTask(FROM_HERE, *parameters_.ui_task);
 369     message_loop->PostTask(FROM_HERE, quit_closure);
 370   }
 371
 372   run_loop.Run();
 373
 374   // Once the main loop has stopped running, we give the browser process a few
 375   // seconds to stop cast service and finalize all resources. If a hang occurs
 376   // and cast services refuse to terminate successfully, then we SIGKILL the
 377   // current process to avoid indefinte hangs.
 378   RegisterKillOnAlarm(kKillOnAlarmTimeoutSec);
 379
 380   cast_browser_process_->cast_service()->Stop();
 381   return true;
 382 #endif
 383 }
 384
 385 void CastBrowserMainParts::PostMainMessageLoopRun() {
 386 #if defined(OS_ANDROID)
 387   // Android does not use native main MessageLoop.
 388   NOTREACHED();
 389 #else
 390   cast_browser_process_->cast_service()->Finalize();
 391   cast_browser_process_->metrics_service_client()->Finalize();
 392   cast_browser_process_.reset();
 393
 394 #if defined(USE_AURA)
 395   aura::Env::DeleteInstance();
 396 #endif
 397
 398   DeregisterKillOnAlarm();
 399 #endif
 400
 401   // Finalize CastMediaShlib on media thread to ensure it's not accessed
 402   // after Finalize.
 403   media::MediaMessageLoop::GetTaskRunner()->PostTask(
 404       FROM_HERE, base::Bind(&media::CastMediaShlib::Finalize));
 405 }
 406
 407 }  // namespace shell
 408 }  // namespace chromecast