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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 IPC_MESSAGE_FILTER_H_ | 5 #ifndef IPC_MESSAGE_FILTER_H_ |
6 #define IPC_MESSAGE_FILTER_H_ | 6 #define IPC_MESSAGE_FILTER_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
| 13 #include "ipc/ipc_channel.h" |
13 #include "ipc/ipc_export.h" | 14 #include "ipc/ipc_export.h" |
14 | 15 |
15 namespace IPC { | 16 namespace IPC { |
16 | 17 |
17 class Sender; | |
18 class Message; | 18 class Message; |
19 | 19 |
20 // A class that receives messages on the thread where the IPC channel is | 20 // A class that receives messages on the thread where the IPC channel is |
21 // running. It can choose to prevent the default action for an IPC message. | 21 // running. It can choose to prevent the default action for an IPC message. |
22 class IPC_EXPORT MessageFilter | 22 class IPC_EXPORT MessageFilter |
23 : public base::RefCountedThreadSafe<MessageFilter> { | 23 : public base::RefCountedThreadSafe<MessageFilter> { |
24 public: | 24 public: |
25 MessageFilter(); | 25 MessageFilter(); |
26 | 26 |
27 // Called on the background thread to provide the filter with access to the | 27 // Called on the background thread to provide the filter with access to the |
28 // channel. Called when the IPC channel is initialized or when AddFilter | 28 // channel. Called when the IPC channel is initialized or when AddFilter |
29 // is called if the channel is already initialized. | 29 // is called if the channel is already initialized. |
30 virtual void OnFilterAdded(Sender* sender); | 30 virtual void OnFilterAdded(Channel* channel); |
31 | 31 |
32 // Called on the background thread when the filter has been removed from | 32 // Called on the background thread when the filter has been removed from |
33 // the ChannelProxy and when the Channel is closing. After a filter is | 33 // the ChannelProxy and when the Channel is closing. After a filter is |
34 // removed, it will not be called again. | 34 // removed, it will not be called again. |
35 virtual void OnFilterRemoved(); | 35 virtual void OnFilterRemoved(); |
36 | 36 |
37 // Called to inform the filter that the IPC channel is connected and we | 37 // Called to inform the filter that the IPC channel is connected and we |
38 // have received the internal Hello message from the peer. | 38 // have received the internal Hello message from the peer. |
39 virtual void OnChannelConnected(int32_t peer_pid); | 39 virtual void OnChannelConnected(int32_t peer_pid); |
40 | 40 |
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60 protected: | 60 protected: |
61 virtual ~MessageFilter(); | 61 virtual ~MessageFilter(); |
62 | 62 |
63 private: | 63 private: |
64 friend class base::RefCountedThreadSafe<MessageFilter>; | 64 friend class base::RefCountedThreadSafe<MessageFilter>; |
65 }; | 65 }; |
66 | 66 |
67 } // namespace IPC | 67 } // namespace IPC |
68 | 68 |
69 #endif // IPC_MESSAGE_FILTER_H_ | 69 #endif // IPC_MESSAGE_FILTER_H_ |
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