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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 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_CHILD_CROSS_MESSAGE_FILTER_H_ | 5 #ifndef CONTENT_CHILD_CROSS_MESSAGE_FILTER_H_ |
6 #define CONTENT_CHILD_CROSS_MESSAGE_FILTER_H_ | 6 #define CONTENT_CHILD_CROSS_MESSAGE_FILTER_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "ipc/ipc_sender.h" | 9 #include "ipc/ipc_sender.h" |
10 | 10 |
11 namespace base { | 11 namespace base { |
12 class TaskRunner; | 12 class TaskRunner; |
13 } | 13 } |
14 | 14 |
15 namespace IPC { | 15 namespace IPC { |
16 class MessageFilter; | 16 class MessageFilter; |
17 } | 17 } |
18 | 18 |
19 namespace content { | 19 namespace content { |
20 | 20 |
21 class ThreadSafeSender; | 21 class ThreadSafeSender; |
22 | 22 |
23 // A base class for implementing IPC MessageFilter's that run on a different | 23 // A base class for implementing IPC MessageFilter's that run on a different |
24 // thread or TaskRunner than the main thread. | 24 // thread or TaskRunner than the main thread. |
25 class ChildMessageFilter | 25 class ChildMessageFilter |
26 : public base::RefCountedThreadSafe<ChildMessageFilter>, | 26 : public base::RefCountedThreadSafe<ChildMessageFilter>, |
27 public IPC::Sender { | 27 public IPC::Sender { |
28 public: | 28 public: |
29 // IPC::Sender implementation. Can be called on any threads. | 29 // IPC::Sender implementation. Can be called on any threads. |
30 virtual bool Send(IPC::Message* message) OVERRIDE; | 30 virtual bool Send(IPC::Message* message) override; |
31 | 31 |
32 // If implementers want to run OnMessageReceived on a different task | 32 // If implementers want to run OnMessageReceived on a different task |
33 // runner it should override this and return the TaskRunner for the message. | 33 // runner it should override this and return the TaskRunner for the message. |
34 // Returning NULL runs OnMessageReceived() on the current IPC thread. | 34 // Returning NULL runs OnMessageReceived() on the current IPC thread. |
35 virtual base::TaskRunner* OverrideTaskRunnerForMessage( | 35 virtual base::TaskRunner* OverrideTaskRunnerForMessage( |
36 const IPC::Message& msg) = 0; | 36 const IPC::Message& msg) = 0; |
37 | 37 |
38 // If OverrideTaskRunnerForMessage is overriden and returns non-null | 38 // If OverrideTaskRunnerForMessage is overriden and returns non-null |
39 // this will be called on the returned TaskRunner. | 39 // this will be called on the returned TaskRunner. |
40 virtual bool OnMessageReceived(const IPC::Message& msg) = 0; | 40 virtual bool OnMessageReceived(const IPC::Message& msg) = 0; |
(...skipping 23 matching lines...) Expand all Loading... |
64 Internal* internal_; | 64 Internal* internal_; |
65 | 65 |
66 scoped_refptr<ThreadSafeSender> thread_safe_sender_; | 66 scoped_refptr<ThreadSafeSender> thread_safe_sender_; |
67 | 67 |
68 DISALLOW_COPY_AND_ASSIGN(ChildMessageFilter); | 68 DISALLOW_COPY_AND_ASSIGN(ChildMessageFilter); |
69 }; | 69 }; |
70 | 70 |
71 } // namespace content | 71 } // namespace content |
72 | 72 |
73 #endif // CONTENT_CHILD_CROSS_MESSAGE_FILTER_H_ | 73 #endif // CONTENT_CHILD_CROSS_MESSAGE_FILTER_H_ |
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