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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_HOST_MESSAGE_DISPATCHER_H_
#define REMOTING_PROTOCOL_HOST_MESSAGE_DISPATCHER_H_
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
namespace base {
class MessageLoopProxy;
} // namespace base
namespace remoting {
class ChromotingClientMessage;
class ChromotingConnection;
class EventStreamReader;
class HostControlMessageHandler;
class HostEventMessageHandler;
// A message dispatcher used to listen for messages received in
// ChromotingConnection. It dispatches messages to the corresponding
// handler.
//
// Internally it contains an EventStreamReader that decodes data on
// communications channels into protocol buffer messages.
// EventStreamReader is registered with ChromotingConnection given to it.
//
// Object of this class is owned by ChromotingHost to dispatch messages
// to itself.
class HostMessageDispatcher {
public:
// Construct a message dispatcher that dispatches messages received
// in ChromotingConnection.
HostMessageDispatcher(base::MessageLoopProxy* message_loop_proxy,
ChromotingConnection* connection,
HostControlMessageHandler* control_message_handler,
HostEventMessageHandler* event_message_handler);
virtual ~HostMessageDispatcher();
private:
// This method is called by |control_channel_reader_| when a control
// message is received.
void OnControlMessageReceived(ChromotingClientMessage* message);
// This method is called by |event_channel_reader_| when a event
// message is received.
void OnEventMessageReceived(ChromotingClientMessage* message);
// Message loop to dispatch the messages.
scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
// EventStreamReader that runs on the control channel. It runs a loop
// that parses data on the channel and then delegate the message to this
// class.
scoped_ptr<EventStreamReader> control_channel_reader_;
// EventStreamReader that runs on the event channel.
scoped_ptr<EventStreamReader> event_channel_reader_;
// Event handlers for control channel and event channel respectively.
// Method calls to these objects are made on the message loop given.
scoped_ptr<HostControlMessageHandler> control_message_handler_;
scoped_ptr<HostEventMessageHandler> event_message_handler_;
};
} // namespace remoting
#endif // REMOTING_PROTOCOL_HOST_MESSAGE_DISPATCHER_H_
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