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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 | |
14 namespace appcache { | 16 namespace appcache { |
15 | 17 |
16 // The appcache system uses two threads, an IO thread and a DB thread. | 18 // The appcache system uses two threads, an IO thread and a DB thread. |
17 // It does not create these threads, the embedder is responsible for | 19 // It does not create these threads, the embedder is responsible for |
18 // providing them to the appcache library by providing a concrete | 20 // providing them to the appcache library by providing a concrete |
19 // implementation of the PostTask and CurrentlyOn methods declared here, | 21 // implementation of the PostTask and CurrentlyOn methods declared here, |
20 // and by calling the InitIDs method prior to using the appcache library. | 22 // 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. | |
21 class AppCacheThread { | 25 class AppCacheThread { |
22 public: | 26 public: |
23 static void InitIDs(int db, int io) { | 27 static void Init(int db, int io, MessageLoop* disk_cache_thread) { |
rvargas (doing something else)
2010/03/18 22:17:07
I'm sad for the lack of symmetry but I see that th
| |
24 db_ = db; | 28 db_ = db; |
25 io_ = io; | 29 io_ = io; |
30 disk_cache_thread_ = disk_cache_thread; | |
26 } | 31 } |
27 static int db() { return db_; } | 32 static int db() { return db_; } |
28 static int io() { return io_; } | 33 static int io() { return io_; } |
34 static MessageLoop* disk_cache_thread() { return disk_cache_thread_; } | |
29 | 35 |
30 static bool PostTask(int id, | 36 static bool PostTask(int id, |
31 const tracked_objects::Location& from_here, | 37 const tracked_objects::Location& from_here, |
32 Task* task); | 38 Task* task); |
33 static bool CurrentlyOn(int id); | 39 static bool CurrentlyOn(int id); |
34 | 40 |
35 template <class T> | 41 template <class T> |
36 static bool DeleteSoon(int id, | 42 static bool DeleteSoon(int id, |
37 const tracked_objects::Location& from_here, | 43 const tracked_objects::Location& from_here, |
38 T* object) { | 44 T* object) { |
39 return PostTask(id, from_here, new DeleteTask<T>(object)); | 45 return PostTask(id, from_here, new DeleteTask<T>(object)); |
40 } | 46 } |
41 | 47 |
42 private: | 48 private: |
43 AppCacheThread(); | 49 AppCacheThread(); |
44 ~AppCacheThread(); | 50 ~AppCacheThread(); |
45 | 51 |
46 static int db_; | 52 static int db_; |
47 static int io_; | 53 static int io_; |
54 static MessageLoop* disk_cache_thread_; | |
48 }; | 55 }; |
49 | 56 |
50 } // namespace appcache | 57 } // namespace appcache |
51 | 58 |
52 #endif // WEBKIT_APPCACHE_APPCACHE_THREAD_H_ | 59 #endif // WEBKIT_APPCACHE_APPCACHE_THREAD_H_ |
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