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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef REMOTING_PROTOCOL_CHANNEL_FACTORY_H_ | |
6 #define REMOTING_PROTOCOL_CHANNEL_FACTORY_H_ | |
7 | |
8 #include "base/callback.h" | |
9 #include "base/memory/scoped_ptr.h" | |
10 #include "base/threading/non_thread_safe.h" | |
11 | |
12 namespace net { | |
13 class Socket; | |
14 class StreamSocket; | |
15 } // namespace net | |
16 | |
17 namespace remoting { | |
18 namespace protocol { | |
19 | |
20 class ChannelFactory : public base::NonThreadSafe { | |
21 public: | |
22 // TODO(sergeyu): Specify connection error code when channel | |
23 // connection fails. | |
24 typedef base::Callback<void(scoped_ptr<net::StreamSocket>)> | |
25 ChannelCreatedCallback; | |
26 | |
27 ChannelFactory() {} | |
28 | |
29 // Creates new channels for this connection. The specified callback is called | |
30 // when then new channel is created and connected. The callback is called with | |
31 // NULL if connection failed for any reason. Callback may be called | |
32 // synchronously, before the call returns. All channels must be destroyed | |
33 // before the factory is destroyed and CancelChannelCreation() must be called | |
34 // to cancel creation of channels for which the |callback| hasn't been called | |
35 // yet. | |
36 virtual void CreateChannel(const std::string& name, | |
37 const ChannelCreatedCallback& callback) = 0; | |
38 | |
39 // Cancels a pending CreateChannel() operation for the named channel. If the | |
40 // channel creation already completed then canceling it has no effect. When | |
41 // shutting down this method must be called for each channel pending creation. | |
42 virtual void CancelChannelCreation(const std::string& name) = 0; | |
43 | |
44 protected: | |
45 virtual ~ChannelFactory() {} | |
46 | |
47 private: | |
48 DISALLOW_COPY_AND_ASSIGN(ChannelFactory); | |
49 }; | |
50 | |
51 } // namespace protocol | |
52 } // namespace remoting | |
53 | |
54 #endif // REMOTING_PROTOCOL_CHANNEL_FACTORY_H_ | |
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