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/browser/media/cast_browser_cdm_factory.h"
  59 #include "chromecast/net/network_change_notifier_factory_cast.h"
  60 #endif
  61
  62 #if defined(USE_AURA)
  63 #include "chromecast/graphics/cast_screen.h"
  64 #include "ui/aura/env.h"
  65 #include "ui/gfx/screen.h"
  66 #endif
  67
  68 namespace {
  69
  70 #if !defined(OS_ANDROID)
  71 int kSignalsToRunClosure[] = { SIGTERM, SIGINT, };
  72
  73 // Closure to run on SIGTERM and SIGINT.
  74 base::Closure* g_signal_closure = NULL;
  75
  76 void RunClosureOnSignal(int signum) {
  77   LOG(ERROR) << "Got signal " << signum;
  78   DCHECK(g_signal_closure);
  79   // Expect main thread got this signal. Otherwise, weak_ptr of run_loop will
  80   // crash the process.
  81   g_signal_closure->Run();
  82 }
  83
  84 void RegisterClosureOnSignal(const base::Closure& closure) {
  85   DCHECK(!g_signal_closure);
  86   DCHECK_GT(arraysize(kSignalsToRunClosure), 0U);
  87
  88   // Allow memory leak by intention.
  89   g_signal_closure = new base::Closure(closure);
  90
  91   struct sigaction sa_new;
  92   memset(&sa_new, 0, sizeof(sa_new));
  93   sa_new.sa_handler = RunClosureOnSignal;
  94   sigfillset(&sa_new.sa_mask);
  95   sa_new.sa_flags = SA_RESTART;
  96
  97   for (size_t i = 0; i < arraysize(kSignalsToRunClosure); i++) {
  98     struct sigaction sa_old;
  99     if (sigaction(kSignalsToRunClosure[i], &sa_new, &sa_old) == -1) {
 100       NOTREACHED();
 101     } else {
 102       DCHECK_EQ(sa_old.sa_handler, SIG_DFL);
 103     }
 104   }
 105
 106   // Get the first signal to exit when the parent process dies.
 107   prctl(PR_SET_PDEATHSIG, kSignalsToRunClosure[0]);
 108 }
 109
 110 const int kKillOnAlarmTimeoutSec = 5;  // 5 seconds
 111
 112 void KillOnAlarm(int signum) {
 113   LOG(ERROR) << "Got alarm signal for termination: " << signum;
 114   raise(SIGKILL);
 115 }
 116
 117 void RegisterKillOnAlarm(int timeout_seconds) {
 118   struct sigaction sa_new;
 119   memset(&sa_new, 0, sizeof(sa_new));
 120   sa_new.sa_handler = KillOnAlarm;
 121   sigfillset(&sa_new.sa_mask);
 122   sa_new.sa_flags = SA_RESTART;
 123
 124   struct sigaction sa_old;
 125   if (sigaction(SIGALRM, &sa_new, &sa_old) == -1) {
 126     NOTREACHED();
 127   } else {
 128     DCHECK_EQ(sa_old.sa_handler, SIG_DFL);
 129   }
 130
 131   if (alarm(timeout_seconds) > 0)
 132     NOTREACHED() << "Previous alarm() was cancelled";
 133 }
 134
 135 void DeregisterKillOnAlarm() {
 136   // Explicitly cancel any outstanding alarm() calls.
 137   alarm(0);
 138
 139   struct sigaction sa_new;
 140   memset(&sa_new, 0, sizeof(sa_new));
 141   sa_new.sa_handler = SIG_DFL;
 142   sigfillset(&sa_new.sa_mask);
 143   sa_new.sa_flags = SA_RESTART;
 144
 145   struct sigaction sa_old;
 146   if (sigaction(SIGALRM, &sa_new, &sa_old) == -1) {
 147     NOTREACHED();
 148   } else {
 149     DCHECK_EQ(sa_old.sa_handler, KillOnAlarm);
 150   }
 151 }
 152 #endif  // !defined(OS_ANDROID)
 153
 154 }  // namespace
 155
 156 namespace chromecast {
 157 namespace shell {
 158
 159 namespace {
 160
 161 struct DefaultCommandLineSwitch {
 162   const char* const switch_name;
 163   const char* const switch_value;
 164 };
 165
 166 DefaultCommandLineSwitch g_default_switches[] = {
 167 #if defined(OS_ANDROID)
 168   // Disables Chromecast-specific WiFi-related features on ATV for now.
 169   { switches::kNoWifi, "" },
 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   // Needed so that our call to GpuDataManager::SetGLStrings doesn't race
 194   // against GPU process creation (which is otherwise triggered from
 195   // BrowserThreadsStarted).  The GPU process will be created as soon as a
 196   // renderer needs it, which always happens after main loop starts.
 197   { switches::kDisableGpuEarlyInit, "" },
 198   { NULL, NULL },  // Termination
 199 };
 200
 201 void AddDefaultCommandLineSwitches(base::CommandLine* command_line) {
 202   int i = 0;
 203   while (g_default_switches[i].switch_name != NULL) {
 204     command_line->AppendSwitchASCII(
 205         std::string(g_default_switches[i].switch_name),
 206         std::string(g_default_switches[i].switch_value));
 207     ++i;
 208   }
 209 }
 210
 211 }  // namespace
 212
 213 CastBrowserMainParts::CastBrowserMainParts(
 214     const content::MainFunctionParams& parameters,
 215     URLRequestContextFactory* url_request_context_factory,
 216     scoped_ptr<::media::AudioManagerFactory> audio_manager_factory)
 217     : BrowserMainParts(),
 218       cast_browser_process_(new CastBrowserProcess()),
 219       parameters_(parameters),
 220       url_request_context_factory_(url_request_context_factory),
 221       audio_manager_factory_(audio_manager_factory.Pass()),
 222       net_log_(new CastNetLog()) {
 223   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 224   AddDefaultCommandLineSwitches(command_line);
 225 }
 226
 227 CastBrowserMainParts::~CastBrowserMainParts() {
 228 }
 229
 230 void CastBrowserMainParts::PreMainMessageLoopStart() {
 231   // GroupedHistograms needs to be initialized before any threads are created
 232   // to prevent race conditions between calls to Preregister and those threads
 233   // attempting to collect metrics.
 234   // This call must also be before NetworkChangeNotifier, as it generates
 235   // Net/DNS metrics.
 236   metrics::PreregisterAllGroupedHistograms();
 237
 238   // Set the platform's implementation of AudioManagerFactory.
 239   if (audio_manager_factory_)
 240     ::media::AudioManager::SetFactory(audio_manager_factory_.release());
 241
 242 #if defined(OS_ANDROID)
 243   net::NetworkChangeNotifier::SetFactory(
 244       new net::NetworkChangeNotifierFactoryAndroid());
 245 #else
 246   net::NetworkChangeNotifier::SetFactory(
 247       new NetworkChangeNotifierFactoryCast());
 248 #endif  // defined(OS_ANDROID)
 249 }
 250
 251 void CastBrowserMainParts::PostMainMessageLoopStart() {
 252   cast_browser_process_->SetMetricsHelper(make_scoped_ptr(
 253       new metrics::CastMetricsHelper(base::ThreadTaskRunnerHandle::Get())));
 254
 255 #if defined(OS_ANDROID)
 256   base::MessageLoopForUI::current()->Start();
 257 #endif  // defined(OS_ANDROID)
 258 }
 259
 260 int CastBrowserMainParts::PreCreateThreads() {
 261 #if defined(OS_ANDROID)
 262   // GPU process is started immediately after threads are created, requiring
 263   // CrashDumpManager to be initialized beforehand.
 264   base::FilePath crash_dumps_dir;
 265   if (!chromecast::CrashHandler::GetCrashDumpLocation(&crash_dumps_dir)) {
 266     LOG(ERROR) << "Could not find crash dump location.";
 267   }
 268   cast_browser_process_->SetCrashDumpManager(
 269       make_scoped_ptr(new breakpad::CrashDumpManager(crash_dumps_dir)));
 270 #else
 271   base::FilePath home_dir;
 272   CHECK(PathService::Get(DIR_CAST_HOME, &home_dir));
 273   if (!base::CreateDirectory(home_dir))
 274     return 1;
 275 #endif
 276
 277 #if defined(USE_AURA)
 278   // Screen can (and should) exist even with no displays connected. Its presence
 279   // is assumed as an interface to access display information, e.g. from metrics
 280   // code.  See CastContentWindow::CreateWindowTree for update when resolution
 281   // is available.
 282   cast_browser_process_->SetCastScreen(make_scoped_ptr(new CastScreen));
 283   DCHECK(!gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE));
 284   gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
 285                                  cast_browser_process_->cast_screen());
 286 #endif
 287   return 0;
 288 }
 289
 290 void CastBrowserMainParts::PreMainMessageLoopRun() {
 291 #if !defined(OS_ANDROID)
 292   // Set GL strings so GPU config code can make correct feature blacklisting/
 293   // whitelisting decisions.
 294   // Note: SetGLStrings MUST be called after GpuDataManager::Initialize.
 295   scoped_ptr<CastSysInfo> sys_info = CreateSysInfo();
 296   content::GpuDataManager::GetInstance()->SetGLStrings(
 297       sys_info->GetGlVendor(), sys_info->GetGlRenderer(),
 298       sys_info->GetGlVersion());
 299 #endif  // !defined(OS_ANDROID)
 300
 301   scoped_refptr<PrefRegistrySimple> pref_registry(new PrefRegistrySimple());
 302   metrics::RegisterPrefs(pref_registry.get());
 303   cast_browser_process_->SetPrefService(
 304       PrefServiceHelper::CreatePrefService(pref_registry.get()));
 305
 306   const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
 307 #if defined(OS_ANDROID)
 308   ::media::SetMediaClientAndroid(new media::CastMediaClientAndroid());
 309 #else
 310   if (cmd_line->HasSwitch(switches::kEnableCmaMediaPipeline))
 311     ::media::SetBrowserCdmFactory(new media::CastBrowserCdmFactory());
 312 #endif  // defined(OS_ANDROID)
 313
 314   cast_browser_process_->SetConnectivityChecker(
 315       ConnectivityChecker::Create(
 316           content::BrowserThread::GetMessageLoopProxyForThread(
 317               content::BrowserThread::IO)));
 318
 319   cast_browser_process_->SetNetLog(net_log_.get());
 320
 321   url_request_context_factory_->InitializeOnUIThread(net_log_.get());
 322
 323   cast_browser_process_->SetBrowserContext(
 324       make_scoped_ptr(new CastBrowserContext(url_request_context_factory_)));
 325   cast_browser_process_->SetMetricsServiceClient(
 326       metrics::CastMetricsServiceClient::Create(
 327           content::BrowserThread::GetBlockingPool(),
 328           cast_browser_process_->pref_service(),
 329           cast_browser_process_->browser_context()->GetRequestContext()));
 330
 331   if (!PlatformClientAuth::Initialize())
 332     LOG(ERROR) << "PlatformClientAuth::Initialize failed.";
 333
 334   cast_browser_process_->SetRemoteDebuggingServer(
 335       make_scoped_ptr(new RemoteDebuggingServer()));
 336
 337   media::MediaMessageLoop::GetTaskRunner()->PostTask(
 338       FROM_HERE,
 339       base::Bind(&media::CastMediaShlib::Initialize, cmd_line->argv()));
 340   ::media::InitializeMediaLibrary();
 341
 342   cast_browser_process_->SetCastService(
 343       cast_browser_process_->browser_client()->CreateCastService(
 344           cast_browser_process_->browser_context(),
 345           cast_browser_process_->pref_service(),
 346           url_request_context_factory_->GetSystemGetter()));
 347   cast_browser_process_->cast_service()->Initialize();
 348
 349   // Initializing metrics service and network delegates must happen after cast
 350   // service is intialized because CastMetricsServiceClient and
 351   // CastNetworkDelegate may use components initialized by cast service.
 352   cast_browser_process_->metrics_service_client()
 353       ->Initialize(cast_browser_process_->cast_service());
 354   url_request_context_factory_->InitializeNetworkDelegates();
 355
 356   cast_browser_process_->cast_service()->Start();
 357 }
 358
 359 bool CastBrowserMainParts::MainMessageLoopRun(int* result_code) {
 360 #if defined(OS_ANDROID)
 361   // Android does not use native main MessageLoop.
 362   NOTREACHED();
 363   return true;
 364 #else
 365   base::RunLoop run_loop;
 366   base::Closure quit_closure(run_loop.QuitClosure());
 367   RegisterClosureOnSignal(quit_closure);
 368
 369   // If parameters_.ui_task is not NULL, we are running browser tests.
 370   if (parameters_.ui_task) {
 371     base::MessageLoop* message_loop = base::MessageLoopForUI::current();
 372     message_loop->PostTask(FROM_HERE, *parameters_.ui_task);
 373     message_loop->PostTask(FROM_HERE, quit_closure);
 374   }
 375
 376   run_loop.Run();
 377
 378   // Once the main loop has stopped running, we give the browser process a few
 379   // seconds to stop cast service and finalize all resources. If a hang occurs
 380   // and cast services refuse to terminate successfully, then we SIGKILL the
 381   // current process to avoid indefinte hangs.
 382   RegisterKillOnAlarm(kKillOnAlarmTimeoutSec);
 383
 384   cast_browser_process_->cast_service()->Stop();
 385   return true;
 386 #endif
 387 }
 388
 389 void CastBrowserMainParts::PostMainMessageLoopRun() {
 390 #if defined(OS_ANDROID)
 391   // Android does not use native main MessageLoop.
 392   NOTREACHED();
 393 #else
 394   cast_browser_process_->cast_service()->Finalize();
 395   cast_browser_process_->metrics_service_client()->Finalize();
 396   cast_browser_process_.reset();
 397
 398 #if defined(USE_AURA)
 399   aura::Env::DeleteInstance();
 400 #endif
 401
 402   DeregisterKillOnAlarm();
 403 #endif
 404 }
 405
 406 }  // namespace shell
 407 }  // namespace chromecast