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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_IPC_CHANNEL_PROXY_H_ | 5 #ifndef IPC_IPC_CHANNEL_PROXY_H_ |
6 #define IPC_IPC_CHANNEL_PROXY_H_ | 6 #define IPC_IPC_CHANNEL_PROXY_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
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57 class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe { | 57 class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe { |
58 public: | 58 public: |
59 // Initializes a channel proxy. The channel_handle and mode parameters are | 59 // Initializes a channel proxy. The channel_handle and mode parameters are |
60 // passed directly to the underlying IPC::Channel. The listener is called on | 60 // passed directly to the underlying IPC::Channel. The listener is called on |
61 // the thread that creates the ChannelProxy. The filter's OnMessageReceived | 61 // the thread that creates the ChannelProxy. The filter's OnMessageReceived |
62 // method is called on the thread where the IPC::Channel is running. The | 62 // method is called on the thread where the IPC::Channel is running. The |
63 // filter may be null if the consumer is not interested in handling messages | 63 // filter may be null if the consumer is not interested in handling messages |
64 // on the background thread. Any message not handled by the filter will be | 64 // on the background thread. Any message not handled by the filter will be |
65 // dispatched to the listener. The given task runner correspond to a thread | 65 // dispatched to the listener. The given task runner correspond to a thread |
66 // on which IPC::Channel is created and used (e.g. IO thread). | 66 // on which IPC::Channel is created and used (e.g. IO thread). |
67 ChannelProxy(const IPC::ChannelHandle& channel_handle, | 67 static scoped_ptr<ChannelProxy> Create( |
68 Channel::Mode mode, | 68 const IPC::ChannelHandle& channel_handle, |
69 Listener* listener, | 69 Channel::Mode mode, |
70 base::SingleThreadTaskRunner* ipc_task_runner); | 70 Listener* listener, |
| 71 base::SingleThreadTaskRunner* ipc_task_runner); |
71 | 72 |
72 virtual ~ChannelProxy(); | 73 virtual ~ChannelProxy(); |
73 | 74 |
74 // Initializes the channel proxy. Only call this once to initialize a channel | 75 // Initializes the channel proxy. Only call this once to initialize a channel |
75 // proxy that was not initialized in its constructor. If create_pipe_now is | 76 // proxy that was not initialized in its constructor. If create_pipe_now is |
76 // true, the pipe is created synchronously. Otherwise it's created on the IO | 77 // true, the pipe is created synchronously. Otherwise it's created on the IO |
77 // thread. | 78 // thread. |
78 void Init(const IPC::ChannelHandle& channel_handle, Channel::Mode mode, | 79 void Init(const IPC::ChannelHandle& channel_handle, Channel::Mode mode, |
79 bool create_pipe_now); | 80 bool create_pipe_now); |
80 | 81 |
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117 int TakeClientFileDescriptor(); | 118 int TakeClientFileDescriptor(); |
118 bool GetPeerEuid(uid_t* peer_euid) const; | 119 bool GetPeerEuid(uid_t* peer_euid) const; |
119 #endif // defined(OS_POSIX) | 120 #endif // defined(OS_POSIX) |
120 | 121 |
121 protected: | 122 protected: |
122 class Context; | 123 class Context; |
123 // A subclass uses this constructor if it needs to add more information | 124 // A subclass uses this constructor if it needs to add more information |
124 // to the internal state. | 125 // to the internal state. |
125 ChannelProxy(Context* context); | 126 ChannelProxy(Context* context); |
126 | 127 |
| 128 ChannelProxy(Listener* listener, |
| 129 base::SingleThreadTaskRunner* ipc_task_runner); |
| 130 |
127 // Used internally to hold state that is referenced on the IPC thread. | 131 // Used internally to hold state that is referenced on the IPC thread. |
128 class Context : public base::RefCountedThreadSafe<Context>, | 132 class Context : public base::RefCountedThreadSafe<Context>, |
129 public Listener { | 133 public Listener { |
130 public: | 134 public: |
131 Context(Listener* listener, base::SingleThreadTaskRunner* ipc_thread); | 135 Context(Listener* listener, base::SingleThreadTaskRunner* ipc_thread); |
132 void ClearIPCTaskRunner(); | 136 void ClearIPCTaskRunner(); |
133 base::SingleThreadTaskRunner* ipc_task_runner() const { | 137 base::SingleThreadTaskRunner* ipc_task_runner() const { |
134 return ipc_task_runner_.get(); | 138 return ipc_task_runner_.get(); |
135 } | 139 } |
136 const std::string& channel_id() const { return channel_id_; } | 140 const std::string& channel_id() const { return channel_id_; } |
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221 // that involves this data. | 225 // that involves this data. |
222 scoped_refptr<Context> context_; | 226 scoped_refptr<Context> context_; |
223 | 227 |
224 // Whether the channel has been initialized. | 228 // Whether the channel has been initialized. |
225 bool did_init_; | 229 bool did_init_; |
226 }; | 230 }; |
227 | 231 |
228 } // namespace IPC | 232 } // namespace IPC |
229 | 233 |
230 #endif // IPC_IPC_CHANNEL_PROXY_H_ | 234 #endif // IPC_IPC_CHANNEL_PROXY_H_ |
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