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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ | 5 #ifndef CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ |
6 #define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ | 6 #define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/synchronization/lock.h" | |
10 #include "base/threading/thread.h" | |
11 #include "content/common/content_export.h" | 9 #include "content/common/content_export.h" |
12 #include "content/public/browser/browser_thread.h" | 10 #include "content/public/browser/browser_thread.h" |
13 | 11 |
14 namespace content { | 12 namespace content { |
15 | 13 |
16 class CONTENT_EXPORT BrowserThreadImpl | 14 class CONTENT_EXPORT BrowserThreadImpl : public BrowserThread { |
17 : public BrowserThread, public base::Thread { | |
18 public: | 15 public: |
19 // Construct a BrowserThreadImpl with the supplied identifier. It is an error | |
20 // to construct a BrowserThreadImpl that already exists. | |
21 explicit BrowserThreadImpl(BrowserThread::ID identifier); | 16 explicit BrowserThreadImpl(BrowserThread::ID identifier); |
22 | |
23 // Special constructor for the main (UI) thread and unittests. We use a dummy | |
24 // thread here since the main thread already exists. | |
25 BrowserThreadImpl(BrowserThread::ID identifier, MessageLoop* message_loop); | 17 BrowserThreadImpl(BrowserThread::ID identifier, MessageLoop* message_loop); |
26 virtual ~BrowserThreadImpl(); | 18 virtual ~BrowserThreadImpl(); |
27 | 19 |
28 protected: | |
29 virtual void Init() OVERRIDE; | |
30 virtual void CleanUp() OVERRIDE; | |
31 | |
32 private: | 20 private: |
33 // We implement all the functionality of the public BrowserThread | 21 // We implement most functionality on the public set of |
34 // functions, but state is stored in the BrowserThreadImpl to keep | 22 // BrowserThread functions, but state is stored in the |
35 // the API cleaner. Therefore make BrowserThread a friend class. | 23 // BrowserThreadImpl to keep the public API cleaner. Therefore make |
| 24 // BrowserThread a friend class. |
36 friend class BrowserThread; | 25 friend class BrowserThread; |
37 | 26 |
38 // TODO(brettw) remove this variant when Task->Closure migration is complete. | 27 // TODO(brettw) remove this variant when Task->Closure migration is complete. |
39 static bool PostTaskHelper( | 28 static bool PostTaskHelper( |
40 BrowserThread::ID identifier, | 29 BrowserThread::ID identifier, |
41 const tracked_objects::Location& from_here, | 30 const tracked_objects::Location& from_here, |
42 Task* task, | 31 Task* task, |
43 int64 delay_ms, | 32 int64 delay_ms, |
44 bool nestable); | 33 bool nestable); |
45 static bool PostTaskHelper( | 34 static bool PostTaskHelper( |
46 BrowserThread::ID identifier, | 35 BrowserThread::ID identifier, |
47 const tracked_objects::Location& from_here, | 36 const tracked_objects::Location& from_here, |
48 const base::Closure& task, | 37 const base::Closure& task, |
49 int64 delay_ms, | 38 int64 delay_ms, |
50 bool nestable); | 39 bool nestable); |
51 | |
52 // Common initialization code for the constructors. | |
53 void Initialize(); | |
54 | |
55 // The identifier of this thread. Only one thread can exist with a given | |
56 // identifier at a given time. | |
57 ID identifier_; | |
58 }; | 40 }; |
59 | 41 |
60 } // namespace content | 42 } // namespace content |
61 | 43 |
62 #endif // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ | 44 #endif // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_ |
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