| // 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. |
| |
| #ifndef CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ |
| #define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ |
| |
| #include "base/threading/thread.h" |
| #include "content/common/content_export.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| namespace content { |
| |
| class CONTENT_EXPORT BrowserThreadImpl : public BrowserThread, |
| public base::Thread { |
| public: |
| // Construct a BrowserThreadImpl with the supplied identifier. It is an error |
| // to construct a BrowserThreadImpl that already exists. |
| explicit BrowserThreadImpl(BrowserThread::ID identifier); |
| |
| // Special constructor for the main (UI) thread and unittests. If a |
| // |message_loop| is provied, we use a dummy thread here since the main |
| // thread already exists. |
| BrowserThreadImpl(BrowserThread::ID identifier, |
| base::MessageLoop* message_loop); |
| virtual ~BrowserThreadImpl(); |
| |
| static void ShutdownThreadPool(); |
| |
| protected: |
| virtual void Init() OVERRIDE; |
| virtual void Run(base::MessageLoop* message_loop) OVERRIDE; |
| virtual void CleanUp() OVERRIDE; |
| |
| private: |
| // We implement all the functionality of the public BrowserThread |
| // functions, but state is stored in the BrowserThreadImpl to keep |
| // the API cleaner. Therefore make BrowserThread a friend class. |
| friend class BrowserThread; |
| |
| // The following are unique function names that makes it possible to tell |
| // the thread id from the callstack alone in crash dumps. |
| void UIThreadRun(base::MessageLoop* message_loop); |
| void DBThreadRun(base::MessageLoop* message_loop); |
| void FileThreadRun(base::MessageLoop* message_loop); |
| void FileUserBlockingThreadRun(base::MessageLoop* message_loop); |
| void ProcessLauncherThreadRun(base::MessageLoop* message_loop); |
| void CacheThreadRun(base::MessageLoop* message_loop); |
| void IOThreadRun(base::MessageLoop* message_loop); |
| |
| static bool PostTaskHelper( |
| BrowserThread::ID identifier, |
| const tracked_objects::Location& from_here, |
| const base::Closure& task, |
| base::TimeDelta delay, |
| bool nestable); |
| |
| // Common initialization code for the constructors. |
| void Initialize(); |
| |
| // For testing. |
| friend class ContentTestSuiteBaseListener; |
| friend class TestBrowserThreadBundle; |
| static void FlushThreadPoolHelper(); |
| |
| // The identifier of this thread. Only one thread can exist with a given |
| // identifier at a given time. |
| ID identifier_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ |