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/debug/leak_annotations.h"
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/threading/platform_thread.h"
   9 #include "base/timer/hi_res_timer_manager.h"
  10 #include "content/child/child_process.h"
  11 #include "content/common/sandbox_linux/sandbox_linux.h"
  12 #include "content/public/common/content_switches.h"
  13 #include "content/public/common/main_function_params.h"
  14 #include "content/public/common/sandbox_init.h"
  15 #include "content/utility/utility_thread_impl.h"
  16
  17 #if defined(OS_WIN)
  18 #include "sandbox/win/src/sandbox.h"
  19 #endif
  20
  21 #if defined(TOOLKIT_GTK)
  22 #include <gtk/gtk.h>
  23
  24 #include "ui/gfx/gtk_util.h"
  25 #endif
  26
  27 namespace content {
  28
  29 // Mainline routine for running as the utility process.
  30 int UtilityMain(const MainFunctionParams& parameters) {
  31   // The main message loop of the utility process.
  32   base::MessageLoop main_message_loop;
  33   base::PlatformThread::SetName("CrUtilityMain");
  34
  35 #if defined(OS_LINUX)
  36   // Initializes the sandbox before any threads are created.
  37   // TODO(jorgelo): move this after GTK initialization when we enable a strict
  38   // Seccomp-BPF policy.
  39   LinuxSandbox::InitializeSandbox();
  40 #endif
  41
  42 #if defined(OS_POSIX)
  43   // The utility process is used to load plugins (see OnLoadPlugins() in
  44   // utility_thread_impl.cc). Some plugins expect the browser to have loaded
  45   // GLib/GTK.
  46   // Due to bugs in GLib we need to initialize GLib/GTK before we start threads,
  47   // see crbug.com/309093.
  48
  49 #if defined(TOOLKIT_GTK)
  50   bool is_sandboxed = false;
  51
  52 #if defined(OS_LINUX)
  53   // On Linux, we only initialize GLib/GTK if we're not sandboxed.
  54   is_sandboxed = !parameters.command_line.HasSwitch(switches::kNoSandbox);
  55 #endif
  56
  57   if (!is_sandboxed) {
  58     // g_thread_init() is deprecated since glib 2.31.0, please see release note:
  59     // http://mail.gnome.org/archives/gnome-announce-list/2011-October/msg00041.html
  60 #if !(GLIB_CHECK_VERSION(2, 31, 0))
  61     if (!g_thread_get_initialized()) {
  62       g_thread_init(NULL);
  63     }
  64 #endif
  65     gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess());
  66   }
  67 #endif
  68 #endif
  69
  70   ChildProcess utility_process;
  71   utility_process.set_main_thread(new UtilityThreadImpl());
  72
  73   base::HighResolutionTimerManager hi_res_timer_manager;
  74
  75 #if defined(OS_WIN)
  76   bool no_sandbox = parameters.command_line.HasSwitch(switches::kNoSandbox);
  77   if (!no_sandbox) {
  78     sandbox::TargetServices* target_services =
  79         parameters.sandbox_info->target_services;
  80     if (!target_services)
  81       return false;
  82     target_services->LowerToken();
  83   }
  84 #endif
  85
  86   base::MessageLoop::current()->Run();
  87
  88 #if defined(LEAK_SANITIZER)
  89   // Invoke LeakSanitizer before shutting down the utility thread, to avoid
  90   // reporting shutdown-only leaks.
  91   __lsan_do_leak_check();
  92 #endif
  93
  94   return 0;
  95 }
  96
  97 }  // namespace content