content/utility/utility_main.cc

   1 // Copyright (c) 2011 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 "base/command_line.h"
   6 #include "base/message_loop/message_loop.h"
   7 #include "base/threading/platform_thread.h"
   8 #include "base/timer/hi_res_timer_manager.h"
   9 #include "content/child/child_process.h"
  10 #include "content/common/sandbox_linux.h"
  11 #include "content/public/common/content_switches.h"
  12 #include "content/public/common/main_function_params.h"
  13 #include "content/public/common/sandbox_init.h"
  14 #include "content/utility/utility_thread_impl.h"
  15
  16 #if defined(OS_WIN)
  17 #include "sandbox/win/src/sandbox.h"
  18 #endif
  19
  20 #if defined(TOOLKIT_GTK)
  21 #include <gtk/gtk.h>
  22
  23 #include "ui/gfx/gtk_util.h"
  24 #endif
  25
  26 namespace content {
  27
  28 // Mainline routine for running as the utility process.
  29 int UtilityMain(const MainFunctionParams& parameters) {
  30   // The main message loop of the utility process.
  31   base::MessageLoop main_message_loop;
  32   base::PlatformThread::SetName("CrUtilityMain");
  33
  34 #if defined(OS_LINUX)
  35   // Initializes the sandbox before any threads are created.
  36   // TODO(jorgelo): move this after GTK initialization when we enable a strict
  37   // Seccomp-BPF policy.
  38   LinuxSandbox::InitializeSandbox();
  39 #endif
  40
  41 #if defined(OS_POSIX)
  42   // The utility process is used to load plugins (see OnLoadPlugins() in
  43   // utility_thread_impl.cc). Some plugins expect the browser to have loaded
  44   // GLib/GTK.
  45   // Due to bugs in GLib we need to initialize GLib/GTK before we start threads,
  46   // see crbug.com/309093.
  47
  48 #if defined(TOOLKIT_GTK)
  49   bool is_sandboxed = false;
  50
  51 #if defined(OS_LINUX)
  52   // On Linux, we only initialize GLib/GTK if we're not sandboxed.
  53   is_sandboxed = !parameters.command_line.HasSwitch(switches::kNoSandbox);
  54 #endif
  55
  56   if (!is_sandboxed) {
  57     // g_thread_init() is deprecated since glib 2.31.0, please see release note:
  58     // http://mail.gnome.org/archives/gnome-announce-list/2011-October/msg00041.html
  59 #if !(GLIB_CHECK_VERSION(2, 31, 0))
  60     if (!g_thread_get_initialized()) {
  61       g_thread_init(NULL);
  62     }
  63 #endif
  64     gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess());
  65   }
  66 #endif
  67 #endif
  68
  69   ChildProcess utility_process;
  70   utility_process.set_main_thread(new UtilityThreadImpl());
  71
  72   base::HighResolutionTimerManager hi_res_timer_manager;
  73
  74 #if defined(OS_WIN)
  75   bool no_sandbox = parameters.command_line.HasSwitch(switches::kNoSandbox);
  76   if (!no_sandbox) {
  77     sandbox::TargetServices* target_services =
  78         parameters.sandbox_info->target_services;
  79     if (!target_services)
  80       return false;
  81     target_services->LowerToken();
  82   }
  83 #endif
  84
  85   base::MessageLoop::current()->Run();
  86
  87   return 0;
  88 }
  89
  90 }  // namespace content