1 // Copyright 2013 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 "content/utility/in_process_utility_thread.h" 6 7 #include "content/child/child_process.h" 8 #include "content/utility/utility_thread_impl.h" 9 10 namespace content { 11 12 // We want to ensure there's only one utility thread running at a time, as there 13 // are many globals used in the utility process. 14 static base::LazyInstance<base::Lock> g_one_utility_thread_lock; 15 InProcessUtilityThread(const std::string & channel_id)16InProcessUtilityThread::InProcessUtilityThread(const std::string& channel_id) 17 : Thread("Chrome_InProcUtilityThread"), channel_id_(channel_id) { 18 } 19 ~InProcessUtilityThread()20InProcessUtilityThread::~InProcessUtilityThread() { 21 Stop(); 22 } 23 Init()24void InProcessUtilityThread::Init() { 25 // We need to return right away or else the main thread that started us will 26 // hang. 27 base::MessageLoop::current()->PostTask( 28 FROM_HERE, 29 base::Bind(&InProcessUtilityThread::InitInternal, 30 base::Unretained(this))); 31 } 32 CleanUp()33void InProcessUtilityThread::CleanUp() { 34 child_process_.reset(); 35 36 // See comment in RendererMainThread. 37 SetThreadWasQuitProperly(true); 38 g_one_utility_thread_lock.Get().Release(); 39 } 40 InitInternal()41void InProcessUtilityThread::InitInternal() { 42 g_one_utility_thread_lock.Get().Acquire(); 43 child_process_.reset(new ChildProcess()); 44 child_process_->set_main_thread(new UtilityThreadImpl(channel_id_)); 45 } 46 CreateInProcessUtilityThread(const std::string & channel_id)47base::Thread* CreateInProcessUtilityThread(const std::string& channel_id) { 48 return new InProcessUtilityThread(channel_id); 49 } 50 51 } // namespace content 52