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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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 WEBKIT_APPCACHE_APPCACHE_THREAD_H_ | 5 #ifndef WEBKIT_APPCACHE_APPCACHE_THREAD_H_ |
6 #define WEBKIT_APPCACHE_APPCACHE_THREAD_H_ | 6 #define WEBKIT_APPCACHE_APPCACHE_THREAD_H_ |
7 | 7 |
8 #include "base/task.h" | 8 #include "base/task.h" |
9 | 9 |
10 namespace tracked_objects { | 10 namespace tracked_objects { |
11 class Location; | 11 class Location; |
12 } | 12 } |
13 | 13 |
14 class MessageLoop; | |
15 | |
16 namespace appcache { | 14 namespace appcache { |
17 | 15 |
18 // The appcache system uses two threads, an IO thread and a DB thread. | 16 // The appcache system uses two threads, an IO thread and a DB thread. |
19 // It does not create these threads, the embedder is responsible for | 17 // It does not create these threads, the embedder is responsible for |
20 // providing them to the appcache library by providing a concrete | 18 // providing them to the appcache library by providing a concrete |
21 // implementation of the PostTask and CurrentlyOn methods declared here, | 19 // implementation of the PostTask and CurrentlyOn methods declared here, |
22 // and by calling the Init method prior to using the appcache library. | 20 // and by calling the Init method prior to using the appcache library. |
23 // The disk_cache also requires the embedder to provide a thread message | |
24 // loop. | |
25 class AppCacheThread { | 21 class AppCacheThread { |
26 public: | 22 public: |
27 static void Init(int db, int io, MessageLoop* disk_cache_thread) { | 23 static void Init(int db, int io) { |
28 db_ = db; | 24 db_ = db; |
29 io_ = io; | 25 io_ = io; |
30 disk_cache_thread_ = disk_cache_thread; | |
31 } | 26 } |
32 static int db() { return db_; } | 27 static int db() { return db_; } |
33 static int io() { return io_; } | 28 static int io() { return io_; } |
34 static MessageLoop* disk_cache_thread() { return disk_cache_thread_; } | |
35 | 29 |
36 static bool PostTask(int id, | 30 static bool PostTask(int id, |
37 const tracked_objects::Location& from_here, | 31 const tracked_objects::Location& from_here, |
38 Task* task); | 32 Task* task); |
39 static bool CurrentlyOn(int id); | 33 static bool CurrentlyOn(int id); |
40 | 34 |
41 template <class T> | 35 template <class T> |
42 static bool DeleteSoon(int id, | 36 static bool DeleteSoon(int id, |
43 const tracked_objects::Location& from_here, | 37 const tracked_objects::Location& from_here, |
44 T* object) { | 38 T* object) { |
45 return PostTask(id, from_here, new DeleteTask<T>(object)); | 39 return PostTask(id, from_here, new DeleteTask<T>(object)); |
46 } | 40 } |
47 | 41 |
48 private: | 42 private: |
49 AppCacheThread(); | 43 AppCacheThread(); |
50 ~AppCacheThread(); | 44 ~AppCacheThread(); |
51 | 45 |
52 static int db_; | 46 static int db_; |
53 static int io_; | 47 static int io_; |
54 static MessageLoop* disk_cache_thread_; | |
55 }; | 48 }; |
56 | 49 |
57 } // namespace appcache | 50 } // namespace appcache |
58 | 51 |
59 #endif // WEBKIT_APPCACHE_APPCACHE_THREAD_H_ | 52 #endif // WEBKIT_APPCACHE_APPCACHE_THREAD_H_ |
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