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// Copyright (c) 2006-2008 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 "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "base/command_line.h"
#include "base/field_trial.h"
#include "base/histogram.h"
#include "base/message_loop.h"
#include "base/path_service.h"
#include "base/platform_thread.h"
#include "base/process_util.h"
#include "base/scoped_nsautorelease_pool.h"
#include "base/stats_counters.h"
#include "base/string_util.h"
#include "base/system_monitor.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_counters.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/logging_chrome.h"
#include "chrome/common/main_function_params.h"
#include "chrome/common/net/net_resource_provider.h"
#include "chrome/renderer/renderer_main_platform_delegate.h"
#include "chrome/renderer/render_process.h"
#include "chrome/renderer/render_thread.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "net/base/net_module.h"
#if defined(USE_LINUX_BREAKPAD)
#include "chrome/app/breakpad_linux.h"
#endif
#if defined(OS_POSIX)
#include <signal.h>
static void SigUSR1Handler(int signal) { }
#endif
// This function provides some ways to test crash and assertion handling
// behavior of the renderer.
static void HandleRendererErrorTestParameters(const CommandLine& command_line) {
// This parameter causes an assertion.
if (command_line.HasSwitch(switches::kRendererAssertTest)) {
DCHECK(false);
}
// This parameter causes a null pointer crash (crash reporter trigger).
if (command_line.HasSwitch(switches::kRendererCrashTest)) {
int* bad_pointer = NULL;
*bad_pointer = 0;
}
if (command_line.HasSwitch(switches::kRendererStartupDialog)) {
#if defined(OS_WIN)
std::wstring title = l10n_util::GetString(IDS_PRODUCT_NAME);
std::wstring message = L"renderer starting with pid: ";
message += IntToWString(base::GetCurrentProcId());
title += L" renderer"; // makes attaching to process easier
::MessageBox(NULL, message.c_str(), title.c_str(),
MB_OK | MB_SETFOREGROUND);
#elif defined(OS_POSIX)
// TODO(playmobil): In the long term, overriding this flag doesn't seem
// right, either use our own flag or open a dialog we can use.
// This is just to ease debugging in the interim.
LOG(WARNING) << "Renderer ("
<< getpid()
<< ") paused waiting for debugger to attach @ pid";
// Install a signal handler so that pause can be woken.
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SigUSR1Handler;
sigaction(SIGUSR1, &sa, NULL);
pause();
#endif // defined(OS_POSIX)
}
}
// mainline routine for running as the Renderer process
int RendererMain(const MainFunctionParams& parameters) {
const CommandLine& parsed_command_line = parameters.command_line_;
base::ScopedNSAutoreleasePool* pool = parameters.autorelease_pool_;
#if defined(USE_LINUX_BREAKPAD)
// Needs to be called after we have chrome::DIR_USER_DATA.
InitCrashReporter();
#endif
// Configure the network module so it has access to resources.
net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
// This function allows pausing execution using the --renderer-startup-dialog
// flag allowing us to attach a debugger.
// Do not move this function down since that would mean we can't easily debug
// whatever occurs before it.
HandleRendererErrorTestParameters(parsed_command_line);
RendererMainPlatformDelegate platform(parameters);
StatsScope<StatsCounterTimer>
startup_timer(chrome::Counters::renderer_main());
#if defined(OS_MACOSX)
// As long as we use Cocoa in the renderer (for the forseeable future as of
// now; see http://crbug.com/13890 for info) we need to have a UI loop.
MessageLoop main_message_loop(MessageLoop::TYPE_UI);
#else
// The main message loop of the renderer services doesn't have IO or UI tasks,
// unless in-process-plugins is used.
MessageLoop main_message_loop(RenderProcess::InProcessPlugins() ?
MessageLoop::TYPE_UI : MessageLoop::TYPE_DEFAULT);
#endif
std::wstring app_name = chrome::kBrowserAppName;
PlatformThread::SetName(WideToASCII(app_name + L"_RendererMain").c_str());
// Initialize the SystemMonitor
base::SystemMonitor::Start();
platform.PlatformInitialize();
bool no_sandbox = parsed_command_line.HasSwitch(switches::kNoSandbox);
platform.InitSandboxTests(no_sandbox);
// Initialize histogram statistics gathering system.
// Don't create StatisticsRecorder in the single process mode.
scoped_ptr<StatisticsRecorder> statistics;
if (!StatisticsRecorder::WasStarted()) {
statistics.reset(new StatisticsRecorder());
}
// Initialize statistical testing infrastructure.
FieldTrialList field_trial;
// Ensure any field trials in browser are reflected into renderer.
if (parsed_command_line.HasSwitch(switches::kForceFieldTestNameAndValue)) {
std::string persistent(WideToASCII(parsed_command_line.GetSwitchValue(
switches::kForceFieldTestNameAndValue)));
bool ret = field_trial.StringAugmentsState(persistent);
DCHECK(ret);
}
{
#if !defined(OS_LINUX)
// TODO(markus): Check if it is OK to unconditionally move this
// instruction down.
RenderProcess render_process;
render_process.set_main_thread(new RenderThread());
#endif
bool run_loop = true;
if (!no_sandbox) {
run_loop = platform.EnableSandbox();
}
#if defined(OS_LINUX)
RenderProcess render_process;
render_process.set_main_thread(new RenderThread());
#endif
platform.RunSandboxTests();
startup_timer.Stop(); // End of Startup Time Measurement.
if (run_loop) {
if (pool)
pool->Recycle();
MessageLoop::current()->Run();
}
}
platform.PlatformUninitialize();
return 0;
}
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