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_STREAM_CHANNEL_FACTORY_H_ 6 #define REMOTING_PROTOCOL_STREAM_CHANNEL_FACTORY_H_ 7 8 #include <string> 9 10 #include "base/callback.h" 11 #include "base/memory/scoped_ptr.h" 12 #include "base/threading/non_thread_safe.h" 13 14 namespace net { 15 class Socket; 16 class StreamSocket; 17 } // namespace net 18 19 namespace remoting { 20 namespace protocol { 21 22 class StreamChannelFactory : public base::NonThreadSafe { 23 public: 24 // TODO(sergeyu): Specify connection error code when channel 25 // connection fails. 26 typedef base::Callback<void(scoped_ptr<net::StreamSocket>)> 27 ChannelCreatedCallback; 28 StreamChannelFactory()29 StreamChannelFactory() {} 30 31 // Creates new channels and calls the |callback| when then new channel is 32 // created and connected. The |callback| is called with NULL if connection 33 // failed for any reason. Callback may be called synchronously, before the 34 // call returns. All channels must be destroyed, and CancelChannelCreation() 35 // called for any pending channels, before the factory is destroyed. 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: ~StreamChannelFactory()45 virtual ~StreamChannelFactory() {} 46 47 private: 48 DISALLOW_COPY_AND_ASSIGN(StreamChannelFactory); 49 }; 50 51 } // namespace protocol 52 } // namespace remoting 53 54 #endif // REMOTING_PROTOCOL_STREAM_CHANNEL_FACTORY_H_ 55