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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_PROTOCOL_CHROMOTING_CONNECTION_H_
#define REMOTING_PROTOCOL_CHROMOTING_CONNECTION_H_
#include <string>
#include "base/callback.h"
#include "remoting/protocol/chromotocol_config.h"
class MessageLoop;
class Task;
namespace net {
class Socket;
} // namespace net
namespace remoting {
// Generic interface for Chromoting connection used by both client and host.
// Provides access to the connection channels, but doesn't depend on the
// protocol used for each channel.
// TODO(sergeyu): Remove refcounting?
// TODO(sergeyu): Rename to ChromotocolConnection.
class ChromotingConnection
: public base::RefCountedThreadSafe<ChromotingConnection> {
public:
enum State {
INITIALIZING,
CONNECTING,
CONNECTED,
CLOSED,
FAILED,
};
typedef Callback1<State>::Type StateChangeCallback;
// Set callback that is called when state of the connection is changed.
// Must be called on the jingle thread only.
virtual void SetStateChangeCallback(StateChangeCallback* callback) = 0;
// Reliable PseudoTCP channels for this connection.
// TODO(sergeyu): Remove VideoChannel, and use RTP channels instead.
// TODO(sergeyu): Make it possible to create/destroy new channels on-fly?
virtual net::Socket* GetEventChannel() = 0;
virtual net::Socket* GetVideoChannel() = 0;
// Unreliable channels for this connection.
virtual net::Socket* GetVideoRtpChannel() = 0;
virtual net::Socket* GetVideoRtcpChannel() = 0;
// JID of the other side.
virtual const std::string& jid() = 0;
// Message loop that must be used for to access the channels of this
// connection.
virtual MessageLoop* message_loop() = 0;
// Configuration of the protocol requested by the client.
// Returned pointer is valid until connection is closed.
virtual const CandidateChromotocolConfig* candidate_config() = 0;
// Protocol configuration. Can be called only after session has been accepted.
// Returned pointer is valid until connection is closed.
virtual const ChromotocolConfig* config() = 0;
// Set protocol configuration for an incoming session. Must be called
// on the host before the connection is accepted, from
// ChromotingServer::NewConnectionCallback. Ownership of |config| is given
// to the connection.
virtual void set_config(const ChromotocolConfig* config) = 0;
// Closes connection. Callbacks are guaranteed not to be called after
// |closed_task| is executed.
virtual void Close(Task* closed_task) = 0;
protected:
friend class base::RefCountedThreadSafe<ChromotingConnection>;
virtual ~ChromotingConnection() { }
};
} // namespace remoting
#endif // REMOTING_PROTOCOL_CHROMOTING_CONNECTION_H_
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