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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_MESSAGE_FILTER_H_ | 5 #ifndef CONTENT_BROWSER_BROWSER_MESSAGE_FILTER_H_ |
6 #define CONTENT_BROWSER_BROWSER_MESSAGE_FILTER_H_ | 6 #define CONTENT_BROWSER_BROWSER_MESSAGE_FILTER_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/process.h" | 9 #include "base/process.h" |
10 #include "content/common/content_export.h" | 10 #include "content/common/content_export.h" |
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31 // IPC::Message::Sender implementation. Can be called on any thread. Can't | 31 // IPC::Message::Sender implementation. Can be called on any thread. Can't |
32 // send sync messages (since we don't want to block the browser on any other | 32 // send sync messages (since we don't want to block the browser on any other |
33 // process). | 33 // process). |
34 virtual bool Send(IPC::Message* message); | 34 virtual bool Send(IPC::Message* message); |
35 | 35 |
36 // If you want the given message to be dispatched to your OnMessageReceived on | 36 // If you want the given message to be dispatched to your OnMessageReceived on |
37 // a different thread, change |thread| to the id of the target thread. | 37 // a different thread, change |thread| to the id of the target thread. |
38 // If you don't handle this message, or want to keep it on the IO thread, do | 38 // If you don't handle this message, or want to keep it on the IO thread, do |
39 // nothing. | 39 // nothing. |
40 virtual void OverrideThreadForMessage(const IPC::Message& message, | 40 virtual void OverrideThreadForMessage(const IPC::Message& message, |
41 BrowserThread::ID* thread); | 41 content::BrowserThread::ID* thread); |
42 | 42 |
43 // Override this to receive messages. | 43 // Override this to receive messages. |
44 // Your function will normally be called on the IO thread. However, if your | 44 // Your function will normally be called on the IO thread. However, if your |
45 // OverrideThreadForMessage modifies the thread used to dispatch the message, | 45 // OverrideThreadForMessage modifies the thread used to dispatch the message, |
46 // your function will be called on the requested thread. | 46 // your function will be called on the requested thread. |
47 virtual bool OnMessageReceived(const IPC::Message& message, | 47 virtual bool OnMessageReceived(const IPC::Message& message, |
48 bool* message_was_ok) = 0; | 48 bool* message_was_ok) = 0; |
49 | 49 |
50 // Can be called on any thread, after OnChannelConnected is called. | 50 // Can be called on any thread, after OnChannelConnected is called. |
51 base::ProcessHandle peer_handle() { return peer_handle_; } | 51 base::ProcessHandle peer_handle() { return peer_handle_; } |
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62 | 62 |
63 private: | 63 private: |
64 // Dispatches a message to the derived class. | 64 // Dispatches a message to the derived class. |
65 bool DispatchMessage(const IPC::Message& message); | 65 bool DispatchMessage(const IPC::Message& message); |
66 | 66 |
67 IPC::Channel* channel_; | 67 IPC::Channel* channel_; |
68 base::ProcessHandle peer_handle_; | 68 base::ProcessHandle peer_handle_; |
69 }; | 69 }; |
70 | 70 |
71 #endif // CONTENT_BROWSER_BROWSER_MESSAGE_FILTER_H_ | 71 #endif // CONTENT_BROWSER_BROWSER_MESSAGE_FILTER_H_ |
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