blob: 274950068b7776aba58899ac30a32a0572e122ea [file] [log] [blame]
// Copyright (c) 2012 The Chromium 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 "content/public/app/content_main_runner.h"
#include <stdlib.h>
#include "base/allocator/allocator_extension.h"
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/debug/debugger.h"
#include "base/files/file_path.h"
#include "base/i18n/icu_util.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/scoped_vector.h"
#include "base/metrics/statistics_recorder.h"
#include "base/path_service.h"
#include "base/process/launch.h"
#include "base/process/memory.h"
#include "base/process/process_handle.h"
#include "base/profiler/alternate_timer.h"
#include "base/profiler/scoped_tracker.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/trace_event/trace_event.h"
#include "content/browser/browser_main.h"
#include "content/common/set_process_title.h"
#include "content/common/url_schemes.h"
#include "content/gpu/in_process_gpu_thread.h"
#include "content/public/app/content_main.h"
#include "content/public/app/content_main_delegate.h"
#include "content/public/app/startup_helper_win.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/main_function_params.h"
#include "content/public/common/sandbox_init.h"
#include "content/renderer/in_process_renderer_thread.h"
#include "content/utility/in_process_utility_thread.h"
#include "crypto/nss_util.h"
#include "ipc/ipc_descriptors.h"
#include "ipc/ipc_switches.h"
#include "media/base/media.h"
#include "sandbox/win/src/sandbox_types.h"
#include "ui/base/ui_base_paths.h"
#include "ui/base/ui_base_switches.h"
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
#include "gin/v8_initializer.h"
#endif
#if defined(USE_TCMALLOC)
#include "third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h"
#if defined(TYPE_PROFILING)
#include "base/allocator/type_profiler.h"
#include "base/allocator/type_profiler_tcmalloc.h"
#endif
#endif
#if !defined(OS_IOS)
#include "content/app/mojo/mojo_init.h"
#include "content/browser/gpu/gpu_process_host.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/utility_process_host_impl.h"
#include "content/public/plugin/content_plugin_client.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/public/utility/content_utility_client.h"
#endif
#if defined(OS_WIN)
#include <malloc.h>
#include <cstring>
#include "base/strings/string_number_conversions.h"
#include "base/trace_event/trace_event_etw_export_win.h"
#include "ui/base/win/atl_module.h"
#include "ui/gfx/win/dpi.h"
#elif defined(OS_MACOSX)
#include "base/mac/scoped_nsautorelease_pool.h"
#if !defined(OS_IOS)
#include "base/power_monitor/power_monitor_device_source.h"
#include "content/app/mac/mac_init.h"
#include "content/browser/mach_broker_mac.h"
#include "content/common/sandbox_init_mac.h"
#endif // !OS_IOS
#endif // OS_WIN
#if defined(OS_POSIX)
#include <signal.h>
#include "base/posix/global_descriptors.h"
#include "content/public/common/content_descriptors.h"
#if !defined(OS_MACOSX)
#include "content/public/common/content_descriptors.h"
#include "content/public/common/zygote_fork_delegate_linux.h"
#endif
#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
#include "content/zygote/zygote_main.h"
#endif
#endif // OS_POSIX
#if !defined(OS_MACOSX) && defined(USE_TCMALLOC)
extern "C" {
int tc_set_new_mode(int mode);
}
#endif
namespace content {
extern int GpuMain(const content::MainFunctionParams&);
#if defined(ENABLE_PLUGINS)
#if !defined(OS_LINUX)
extern int PluginMain(const content::MainFunctionParams&);
#endif
extern int PpapiPluginMain(const MainFunctionParams&);
extern int PpapiBrokerMain(const MainFunctionParams&);
#endif
extern int RendererMain(const content::MainFunctionParams&);
extern int UtilityMain(const MainFunctionParams&);
} // namespace content
namespace content {
#if !defined(CHROME_MULTIPLE_DLL_CHILD)
base::LazyInstance<ContentBrowserClient>
g_empty_content_browser_client = LAZY_INSTANCE_INITIALIZER;
#endif // !CHROME_MULTIPLE_DLL_CHILD
#if !defined(OS_IOS) && !defined(CHROME_MULTIPLE_DLL_BROWSER)
base::LazyInstance<ContentPluginClient>
g_empty_content_plugin_client = LAZY_INSTANCE_INITIALIZER;
base::LazyInstance<ContentRendererClient>
g_empty_content_renderer_client = LAZY_INSTANCE_INITIALIZER;
base::LazyInstance<ContentUtilityClient>
g_empty_content_utility_client = LAZY_INSTANCE_INITIALIZER;
#endif // !OS_IOS && !CHROME_MULTIPLE_DLL_BROWSER
#if defined(OS_WIN)
#endif // defined(OS_WIN)
#if defined(OS_POSIX) && !defined(OS_IOS)
// Setup signal-handling state: resanitize most signals, ignore SIGPIPE.
void SetupSignalHandlers() {
// Sanitise our signal handling state. Signals that were ignored by our
// parent will also be ignored by us. We also inherit our parent's sigmask.
sigset_t empty_signal_set;
CHECK(0 == sigemptyset(&empty_signal_set));
CHECK(0 == sigprocmask(SIG_SETMASK, &empty_signal_set, NULL));
struct sigaction sigact;
memset(&sigact, 0, sizeof(sigact));
sigact.sa_handler = SIG_DFL;
static const int signals_to_reset[] =
{SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGABRT, SIGFPE, SIGSEGV,
SIGALRM, SIGTERM, SIGCHLD, SIGBUS, SIGTRAP}; // SIGPIPE is set below.
for (unsigned i = 0; i < arraysize(signals_to_reset); i++) {
CHECK(0 == sigaction(signals_to_reset[i], &sigact, NULL));
}
// Always ignore SIGPIPE. We check the return value of write().
CHECK(signal(SIGPIPE, SIG_IGN) != SIG_ERR);
}
#endif // OS_POSIX && !OS_IOS
void CommonSubprocessInit(const std::string& process_type) {
#if defined(OS_WIN)
// HACK: Let Windows know that we have started. This is needed to suppress
// the IDC_APPSTARTING cursor from being displayed for a prolonged period
// while a subprocess is starting.
PostThreadMessage(GetCurrentThreadId(), WM_NULL, 0, 0);
MSG msg;
PeekMessage(&msg, NULL, 0, 0, PM_REMOVE);
#endif
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
// Various things break when you're using a locale where the decimal
// separator isn't a period. See e.g. bugs 22782 and 39964. For
// all processes except the browser process (where we call system
// APIs that may rely on the correct locale for formatting numbers
// when presenting them to the user), reset the locale for numeric
// formatting.
// Note that this is not correct for plugin processes -- they can
// surface UI -- but it's likely they get this wrong too so why not.
setlocale(LC_NUMERIC, "C");
#endif
}
// Only needed on Windows for creating stats tables.
#if defined(OS_WIN)
static base::ProcessId GetBrowserPid(const base::CommandLine& command_line) {
base::ProcessId browser_pid = base::GetCurrentProcId();
if (command_line.HasSwitch(switches::kProcessChannelID)) {
std::string channel_name =
command_line.GetSwitchValueASCII(switches::kProcessChannelID);
int browser_pid_int;
base::StringToInt(channel_name, &browser_pid_int);
browser_pid = static_cast<base::ProcessId>(browser_pid_int);
DCHECK_NE(browser_pid_int, 0);
}
return browser_pid;
}
#endif
class ContentClientInitializer {
public:
static void Set(const std::string& process_type,
ContentMainDelegate* delegate) {
ContentClient* content_client = GetContentClient();
#if !defined(CHROME_MULTIPLE_DLL_CHILD)
if (process_type.empty()) {
if (delegate)
content_client->browser_ = delegate->CreateContentBrowserClient();
if (!content_client->browser_)
content_client->browser_ = &g_empty_content_browser_client.Get();
}
#endif // !CHROME_MULTIPLE_DLL_CHILD
#if !defined(OS_IOS) && !defined(CHROME_MULTIPLE_DLL_BROWSER)
if (process_type == switches::kPluginProcess ||
process_type == switches::kPpapiPluginProcess) {
if (delegate)
content_client->plugin_ = delegate->CreateContentPluginClient();
if (!content_client->plugin_)
content_client->plugin_ = &g_empty_content_plugin_client.Get();
// Single process not supported in split dll mode.
} else if (process_type == switches::kRendererProcess ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess)) {
if (delegate)
content_client->renderer_ = delegate->CreateContentRendererClient();
if (!content_client->renderer_)
content_client->renderer_ = &g_empty_content_renderer_client.Get();
}
if (process_type == switches::kUtilityProcess ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess)) {
if (delegate)
content_client->utility_ = delegate->CreateContentUtilityClient();
// TODO(scottmg): http://crbug.com/237249 Should be in _child.
if (!content_client->utility_)
content_client->utility_ = &g_empty_content_utility_client.Get();
}
#endif // !OS_IOS && !CHROME_MULTIPLE_DLL_BROWSER
}
};
// We dispatch to a process-type-specific FooMain() based on a command-line
// flag. This struct is used to build a table of (flag, main function) pairs.
struct MainFunction {
const char* name;
int (*function)(const MainFunctionParams&);
};
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
// On platforms that use the zygote, we have a special subset of
// subprocesses that are launched via the zygote. This function
// fills in some process-launching bits around ZygoteMain().
// Returns the exit code of the subprocess.
int RunZygote(const MainFunctionParams& main_function_params,
ContentMainDelegate* delegate) {
static const MainFunction kMainFunctions[] = {
{ switches::kRendererProcess, RendererMain },
#if defined(ENABLE_PLUGINS)
{ switches::kPpapiPluginProcess, PpapiPluginMain },
#endif
{ switches::kUtilityProcess, UtilityMain },
};
ScopedVector<ZygoteForkDelegate> zygote_fork_delegates;
if (delegate) {
delegate->ZygoteStarting(&zygote_fork_delegates);
media::InitializeMediaLibrary();
}
// This function call can return multiple times, once per fork().
if (!ZygoteMain(main_function_params, zygote_fork_delegates.Pass()))
return 1;
if (delegate) delegate->ZygoteForked();
// Zygote::HandleForkRequest may have reallocated the command
// line so update it here with the new version.
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
std::string process_type =
command_line.GetSwitchValueASCII(switches::kProcessType);
ContentClientInitializer::Set(process_type, delegate);
MainFunctionParams main_params(command_line);
main_params.zygote_child = true;
for (size_t i = 0; i < arraysize(kMainFunctions); ++i) {
if (process_type == kMainFunctions[i].name)
return kMainFunctions[i].function(main_params);
}
if (delegate)
return delegate->RunProcess(process_type, main_params);
NOTREACHED() << "Unknown zygote process type: " << process_type;
return 1;
}
#endif // defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
#if !defined(OS_IOS)
static void RegisterMainThreadFactories() {
#if !defined(CHROME_MULTIPLE_DLL_BROWSER) && !defined(CHROME_MULTIPLE_DLL_CHILD)
UtilityProcessHostImpl::RegisterUtilityMainThreadFactory(
CreateInProcessUtilityThread);
RenderProcessHostImpl::RegisterRendererMainThreadFactory(
CreateInProcessRendererThread);
GpuProcessHost::RegisterGpuMainThreadFactory(
CreateInProcessGpuThread);
#else
base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kSingleProcess)) {
LOG(FATAL) <<
"--single-process is not supported in chrome multiple dll browser.";
}
if (command_line.HasSwitch(switches::kInProcessGPU)) {
LOG(FATAL) <<
"--in-process-gpu is not supported in chrome multiple dll browser.";
}
#endif // !CHROME_MULTIPLE_DLL_BROWSER && !CHROME_MULTIPLE_DLL_CHILD
}
// Run the FooMain() for a given process type.
// If |process_type| is empty, runs BrowserMain().
// Returns the exit code for this process.
int RunNamedProcessTypeMain(
const std::string& process_type,
const MainFunctionParams& main_function_params,
ContentMainDelegate* delegate) {
static const MainFunction kMainFunctions[] = {
#if !defined(CHROME_MULTIPLE_DLL_CHILD)
{ "", BrowserMain },
#endif
#if !defined(CHROME_MULTIPLE_DLL_BROWSER)
#if defined(ENABLE_PLUGINS)
#if !defined(OS_LINUX)
{ switches::kPluginProcess, PluginMain },
#endif
{ switches::kPpapiPluginProcess, PpapiPluginMain },
{ switches::kPpapiBrokerProcess, PpapiBrokerMain },
#endif // ENABLE_PLUGINS
{ switches::kUtilityProcess, UtilityMain },
{ switches::kRendererProcess, RendererMain },
{ switches::kGpuProcess, GpuMain },
#endif // !CHROME_MULTIPLE_DLL_BROWSER
};
RegisterMainThreadFactories();
for (size_t i = 0; i < arraysize(kMainFunctions); ++i) {
if (process_type == kMainFunctions[i].name) {
if (delegate) {
int exit_code = delegate->RunProcess(process_type,
main_function_params);
#if defined(OS_ANDROID)
// In Android's browser process, the negative exit code doesn't mean the
// default behavior should be used as the UI message loop is managed by
// the Java and the browser process's default behavior is always
// overridden.
if (process_type.empty())
return exit_code;
#endif
if (exit_code >= 0)
return exit_code;
}
return kMainFunctions[i].function(main_function_params);
}
}
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
// Zygote startup is special -- see RunZygote comments above
// for why we don't use ZygoteMain directly.
if (process_type == switches::kZygoteProcess)
return RunZygote(main_function_params, delegate);
#endif
// If it's a process we don't know about, the embedder should know.
if (delegate)
return delegate->RunProcess(process_type, main_function_params);
NOTREACHED() << "Unknown process type: " << process_type;
return 1;
}
#endif // !OS_IOS
class ContentMainRunnerImpl : public ContentMainRunner {
public:
ContentMainRunnerImpl()
: is_initialized_(false),
is_shutdown_(false),
completed_basic_startup_(false),
delegate_(NULL),
ui_task_(NULL) {
#if defined(OS_WIN)
memset(&sandbox_info_, 0, sizeof(sandbox_info_));
#endif
}
~ContentMainRunnerImpl() override {
if (is_initialized_ && !is_shutdown_)
Shutdown();
}
#if defined(USE_TCMALLOC)
static bool GetAllocatorWasteSizeThunk(size_t* size) {
size_t heap_size, allocated_bytes, unmapped_bytes;
MallocExtension* ext = MallocExtension::instance();
if (ext->GetNumericProperty("generic.heap_size", &heap_size) &&
ext->GetNumericProperty("generic.current_allocated_bytes",
&allocated_bytes) &&
ext->GetNumericProperty("tcmalloc.pageheap_unmapped_bytes",
&unmapped_bytes)) {
*size = heap_size - allocated_bytes - unmapped_bytes;
return true;
}
DCHECK(false);
return false;
}
static void GetStatsThunk(char* buffer, int buffer_length) {
MallocExtension::instance()->GetStats(buffer, buffer_length);
}
static void ReleaseFreeMemoryThunk() {
MallocExtension::instance()->ReleaseFreeMemory();
}
#endif
int Initialize(const ContentMainParams& params) override {
ui_task_ = params.ui_task;
base::EnableTerminationOnOutOfMemory();
#if defined(OS_WIN)
RegisterInvalidParamHandler();
ui::win::CreateATLModuleIfNeeded();
sandbox_info_ = *params.sandbox_info;
#else // !OS_WIN
#if defined(OS_ANDROID)
// See note at the initialization of ExitManager, below; basically,
// only Android builds have the ctor/dtor handlers set up to use
// TRACE_EVENT right away.
TRACE_EVENT0("startup", "ContentMainRunnerImpl::Initialize");
#endif // OS_ANDROID
// NOTE(willchan): One might ask why these TCMalloc-related calls are done
// here rather than in process_util_linux.cc with the definition of
// EnableTerminationOnOutOfMemory(). That's because base shouldn't have a
// dependency on TCMalloc. Really, we ought to have our allocator shim code
// implement this EnableTerminationOnOutOfMemory() function. Whateverz.
// This works for now.
#if !defined(OS_MACOSX) && defined(USE_TCMALLOC)
#if defined(TYPE_PROFILING)
base::type_profiler::InterceptFunctions::SetFunctions(
base::type_profiler::NewInterceptForTCMalloc,
base::type_profiler::DeleteInterceptForTCMalloc);
#endif
// For tcmalloc, we need to tell it to behave like new.
tc_set_new_mode(1);
// On windows, we've already set these thunks up in _heap_init()
base::allocator::SetGetAllocatorWasteSizeFunction(
GetAllocatorWasteSizeThunk);
base::allocator::SetGetStatsFunction(GetStatsThunk);
base::allocator::SetReleaseFreeMemoryFunction(ReleaseFreeMemoryThunk);
// Provide optional hook for monitoring allocation quantities on a
// per-thread basis. Only set the hook if the environment indicates this
// needs to be enabled.
const char* profiling = getenv(tracked_objects::kAlternateProfilerTime);
if (profiling &&
(atoi(profiling) == tracked_objects::TIME_SOURCE_TYPE_TCMALLOC)) {
tracked_objects::SetAlternateTimeSource(
MallocExtension::GetBytesAllocatedOnCurrentThread,
tracked_objects::TIME_SOURCE_TYPE_TCMALLOC);
}
#endif // !OS_MACOSX && USE_TCMALLOC
#if !defined(OS_IOS)
base::GlobalDescriptors* g_fds = base::GlobalDescriptors::GetInstance();
#endif
// On Android,
// - setlocale() is not supported.
// - We do not override the signal handlers so that we can get
// stack trace when crashing.
// - The ipc_fd is passed through the Java service.
// Thus, these are all disabled.
#if !defined(OS_ANDROID) && !defined(OS_IOS)
// Set C library locale to make sure CommandLine can parse argument values
// in correct encoding.
setlocale(LC_ALL, "");
SetupSignalHandlers();
g_fds->Set(kPrimaryIPCChannel,
kPrimaryIPCChannel + base::GlobalDescriptors::kBaseDescriptor);
#endif // !OS_ANDROID && !OS_IOS
#if defined(OS_LINUX) || defined(OS_OPENBSD)
g_fds->Set(kCrashDumpSignal,
kCrashDumpSignal + base::GlobalDescriptors::kBaseDescriptor);
#endif // OS_LINUX || OS_OPENBSD
#endif // !OS_WIN
is_initialized_ = true;
delegate_ = params.delegate;
// The exit manager is in charge of calling the dtors of singleton objects.
// On Android, AtExitManager is set up when library is loaded.
// On iOS, it's set up in main(), which can't call directly through to here.
// A consequence of this is that you can't use the ctor/dtor-based
// TRACE_EVENT methods on Linux or iOS builds till after we set this up.
#if !defined(OS_ANDROID) && !defined(OS_IOS)
if (!ui_task_) {
// When running browser tests, don't create a second AtExitManager as that
// interfers with shutdown when objects created before ContentMain is
// called are destructed when it returns.
exit_manager_.reset(new base::AtExitManager);
}
#endif // !OS_ANDROID && !OS_IOS
// Don't create this loop on iOS, since the outer loop is already handled
// and a loop that's destroyed in shutdown interleaves badly with the event
// loop pool on iOS.
#if defined(OS_MACOSX) && !defined(OS_IOS)
// We need this pool for all the objects created before we get to the
// event loop, but we don't want to leave them hanging around until the
// app quits. Each "main" needs to flush this pool right before it goes into
// its main event loop to get rid of the cruft.
autorelease_pool_.reset(new base::mac::ScopedNSAutoreleasePool());
InitializeMac();
#endif
// On Android, the command line is initialized when library is loaded and
// we have already started our TRACE_EVENT0.
#if !defined(OS_ANDROID)
// argc/argv are ignored on Windows and Android; see command_line.h for
// details.
int argc = 0;
const char** argv = NULL;
#if !defined(OS_WIN)
argc = params.argc;
argv = params.argv;
#endif
base::CommandLine::Init(argc, argv);
base::EnableTerminationOnHeapCorruption();
// TODO(yiyaoliu, vadimt): Remove this once crbug.com/453640 is fixed.
// Enable profiler recording right after command line is initialized so that
// browser startup can be instrumented.
if (delegate_ && delegate_->ShouldEnableProfilerRecording())
tracked_objects::ScopedTracker::Enable();
#if !defined(OS_IOS)
SetProcessTitleFromCommandLine(argv);
#endif
#endif // !OS_ANDROID
int exit_code = 0;
if (delegate_ && delegate_->BasicStartupComplete(&exit_code))
return exit_code;
completed_basic_startup_ = true;
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
std::string process_type =
command_line.GetSwitchValueASCII(switches::kProcessType);
#if !defined(OS_IOS)
// Initialize mojo here so that services can be registered.
InitializeMojo();
#endif
#if defined(OS_WIN)
bool init_device_scale_factor = true;
if (command_line.HasSwitch(switches::kDeviceScaleFactor)) {
std::string scale_factor_string = command_line.GetSwitchValueASCII(
switches::kDeviceScaleFactor);
double scale_factor = 0;
if (base::StringToDouble(scale_factor_string, &scale_factor)) {
init_device_scale_factor = false;
gfx::InitDeviceScaleFactor(scale_factor);
}
}
if (init_device_scale_factor)
gfx::InitDeviceScaleFactor(gfx::GetDPIScale());
#endif
if (!GetContentClient())
SetContentClient(&empty_content_client_);
ContentClientInitializer::Set(process_type, delegate_);
#if defined(OS_WIN)
// Route stdio to parent console (if any) or create one.
if (command_line.HasSwitch(switches::kEnableLogging))
base::RouteStdioToConsole();
#endif
// Enable startup tracing asap to avoid early TRACE_EVENT calls being
// ignored.
if (command_line.HasSwitch(switches::kTraceStartup)) {
base::trace_event::CategoryFilter category_filter(
command_line.GetSwitchValueASCII(switches::kTraceStartup));
base::trace_event::TraceLog::GetInstance()->SetEnabled(
category_filter,
base::trace_event::TraceLog::RECORDING_MODE,
base::trace_event::TraceOptions(
base::trace_event::RECORD_UNTIL_FULL));
}
#if defined(OS_WIN)
// Enable exporting of events to ETW if requested on the command line.
if (command_line.HasSwitch(switches::kTraceExportEventsToETW))
base::trace_event::TraceEventETWExport::EnableETWExport();
#endif // OS_WIN
#if !defined(OS_ANDROID)
// Android tracing started at the beginning of the method.
// Other OSes have to wait till we get here in order for all the memory
// management setup to be completed.
TRACE_EVENT0("startup", "ContentMainRunnerImpl::Initialize");
#endif // !OS_ANDROID
#if defined(OS_MACOSX) && !defined(OS_IOS)
// We need to allocate the IO Ports before the Sandbox is initialized or
// the first instance of PowerMonitor is created.
// It's important not to allocate the ports for processes which don't
// register with the power monitor - see crbug.com/88867.
if (process_type.empty() ||
(delegate_ &&
delegate_->ProcessRegistersWithSystemProcess(process_type))) {
base::PowerMonitorDeviceSource::AllocateSystemIOPorts();
}
if (!process_type.empty() &&
(!delegate_ || delegate_->ShouldSendMachPort(process_type))) {
MachBroker::ChildSendTaskPortToParent();
}
#elif defined(OS_WIN)
SetupCRT(command_line);
#endif
#if defined(OS_POSIX)
if (!process_type.empty()) {
// When you hit Ctrl-C in a terminal running the browser
// process, a SIGINT is delivered to the entire process group.
// When debugging the browser process via gdb, gdb catches the
// SIGINT for the browser process (and dumps you back to the gdb
// console) but doesn't for the child processes, killing them.
// The fix is to have child processes ignore SIGINT; they'll die
// on their own when the browser process goes away.
//
// Note that we *can't* rely on BeingDebugged to catch this case because
// we are the child process, which is not being debugged.
// TODO(evanm): move this to some shared subprocess-init function.
if (!base::debug::BeingDebugged())
signal(SIGINT, SIG_IGN);
}
#endif
#if defined(USE_NSS_CERTS)
crypto::EarlySetupForNSSInit();
#endif
ui::RegisterPathProvider();
RegisterPathProvider();
RegisterContentSchemes(true);
#if defined(OS_ANDROID)
int icudata_fd = g_fds->MaybeGet(kAndroidICUDataDescriptor);
if (icudata_fd != -1) {
auto icudata_region = g_fds->GetRegion(kAndroidICUDataDescriptor);
CHECK(base::i18n::InitializeICUWithFileDescriptor(icudata_fd,
icudata_region));
} else {
CHECK(base::i18n::InitializeICU());
}
#else
CHECK(base::i18n::InitializeICU());
#endif // OS_ANDROID
base::StatisticsRecorder::Initialize();
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
#if defined(OS_POSIX) && !defined(OS_MACOSX)
#if !defined(OS_ANDROID)
// kV8NativesDataDescriptor and kV8SnapshotDataDescriptor could be shared
// with child processes via file descriptors. On Android they are set in
// ChildProcessService::InternalInitChildProcess, otherwise set them here.
if (command_line.HasSwitch(switches::kV8NativesPassedByFD)) {
g_fds->Set(
kV8NativesDataDescriptor,
kV8NativesDataDescriptor + base::GlobalDescriptors::kBaseDescriptor);
}
if (command_line.HasSwitch(switches::kV8SnapshotPassedByFD)) {
g_fds->Set(
kV8SnapshotDataDescriptor,
kV8SnapshotDataDescriptor + base::GlobalDescriptors::kBaseDescriptor);
}
#endif // !OS_ANDROID
int v8_natives_fd = g_fds->MaybeGet(kV8NativesDataDescriptor);
int v8_snapshot_fd = g_fds->MaybeGet(kV8SnapshotDataDescriptor);
if (v8_natives_fd != -1 && v8_snapshot_fd != -1) {
auto v8_natives_region = g_fds->GetRegion(kV8NativesDataDescriptor);
auto v8_snapshot_region = g_fds->GetRegion(kV8SnapshotDataDescriptor);
CHECK(gin::V8Initializer::LoadV8SnapshotFromFD(
v8_natives_fd, v8_natives_region.offset, v8_natives_region.size,
v8_snapshot_fd, v8_snapshot_region.offset, v8_snapshot_region.size));
} else {
CHECK(gin::V8Initializer::LoadV8Snapshot());
}
#else
CHECK(gin::V8Initializer::LoadV8Snapshot());
#endif // OS_POSIX && !OS_MACOSX
#endif // V8_USE_EXTERNAL_STARTUP_DATA
if (delegate_)
delegate_->PreSandboxStartup();
if (!process_type.empty())
CommonSubprocessInit(process_type);
#if defined(OS_WIN)
CHECK(InitializeSandbox(params.sandbox_info));
#elif defined(OS_MACOSX) && !defined(OS_IOS)
if (process_type == switches::kRendererProcess ||
process_type == switches::kPpapiPluginProcess ||
(delegate_ && delegate_->DelaySandboxInitialization(process_type))) {
// On OS X the renderer sandbox needs to be initialized later in the
// startup sequence in RendererMainPlatformDelegate::EnableSandbox().
} else {
CHECK(InitializeSandbox());
}
#endif
if (delegate_)
delegate_->SandboxInitialized(process_type);
// Return -1 to indicate no early termination.
return -1;
}
int Run() override {
DCHECK(is_initialized_);
DCHECK(!is_shutdown_);
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
std::string process_type =
command_line.GetSwitchValueASCII(switches::kProcessType);
MainFunctionParams main_params(command_line);
main_params.ui_task = ui_task_;
#if defined(OS_WIN)
main_params.sandbox_info = &sandbox_info_;
#elif defined(OS_MACOSX)
main_params.autorelease_pool = autorelease_pool_.get();
#endif
#if !defined(OS_IOS)
return RunNamedProcessTypeMain(process_type, main_params, delegate_);
#else
return 1;
#endif
}
void Shutdown() override {
DCHECK(is_initialized_);
DCHECK(!is_shutdown_);
if (completed_basic_startup_ && delegate_) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
std::string process_type =
command_line.GetSwitchValueASCII(switches::kProcessType);
delegate_->ProcessExiting(process_type);
}
#if defined(OS_WIN)
#ifdef _CRTDBG_MAP_ALLOC
_CrtDumpMemoryLeaks();
#endif // _CRTDBG_MAP_ALLOC
#endif // OS_WIN
#if defined(OS_MACOSX) && !defined(OS_IOS)
autorelease_pool_.reset(NULL);
#endif
exit_manager_.reset(NULL);
delegate_ = NULL;
is_shutdown_ = true;
}
private:
// True if the runner has been initialized.
bool is_initialized_;
// True if the runner has been shut down.
bool is_shutdown_;
// True if basic startup was completed.
bool completed_basic_startup_;
// Used if the embedder doesn't set one.
ContentClient empty_content_client_;
// The delegate will outlive this object.
ContentMainDelegate* delegate_;
scoped_ptr<base::AtExitManager> exit_manager_;
#if defined(OS_WIN)
sandbox::SandboxInterfaceInfo sandbox_info_;
#elif defined(OS_MACOSX)
scoped_ptr<base::mac::ScopedNSAutoreleasePool> autorelease_pool_;
#endif
base::Closure* ui_task_;
DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
};
// static
ContentMainRunner* ContentMainRunner::Create() {
return new ContentMainRunnerImpl();
}
} // namespace content