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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_MESSAGES_STREAM_READER_H_
#define REMOTING_PROTOCOL_MESSAGES_STREAM_READER_H_
#include "base/callback.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "net/base/completion_callback.h"
#include "remoting/protocol/messages_decoder.h"
namespace net {
class Socket;
} // namespace net
namespace remoting {
class ChromotingConnection;
class StreamReaderBase {
public:
StreamReaderBase();
virtual ~StreamReaderBase();
// Stops reading. Must be called on the same thread as Init().
void Close();
protected:
void Init(net::Socket* socket);
virtual void OnDataReceived(net::IOBuffer* buffer, int data_size) = 0;
private:
void DoRead();
void OnRead(int result);
void HandleReadResult(int result);
net::Socket* socket_;
bool closed_;
scoped_refptr<net::IOBuffer> read_buffer_;
net::CompletionCallbackImpl<StreamReaderBase> read_callback_;
};
class EventsStreamReader : public StreamReaderBase {
public:
EventsStreamReader();
~EventsStreamReader();
// The OnMessageCallback is called whenever a new message is received.
// Ownership of the message is passed the callback.
typedef Callback1<ChromotingClientMessage*>::Type OnMessageCallback;
// Initialize the reader and start reading. Must be called on the thread
// |socket| belongs to. The callback will be called when a new message is
// received. EventsStreamReader owns |on_message_callback|, doesn't own
// |socket|.
void Init(net::Socket* socket, OnMessageCallback* on_message_callback);
protected:
virtual void OnDataReceived(net::IOBuffer* buffer, int data_size);
private:
MessagesDecoder messages_decoder_;
scoped_ptr<OnMessageCallback> on_message_callback_;
DISALLOW_COPY_AND_ASSIGN(EventsStreamReader);
};
class VideoStreamReader : public StreamReaderBase {
public:
VideoStreamReader();
~VideoStreamReader();
// The OnMessageCallback is called whenever a new message is received.
// Ownership of the message is passed the callback.
typedef Callback1<ChromotingHostMessage*>::Type OnMessageCallback;
// Initialize the reader and start reading. Must be called on the thread
// |socket| belongs to. The callback will be called when a new message is
// received. VideoStreamReader owns |on_message_callback|, doesn't own
// |socket|.
void Init(net::Socket* socket, OnMessageCallback* on_message_callback);
protected:
virtual void OnDataReceived(net::IOBuffer* buffer, int data_size);
private:
MessagesDecoder messages_decoder_;
scoped_ptr<OnMessageCallback> on_message_callback_;
DISALLOW_COPY_AND_ASSIGN(VideoStreamReader);
};
} // namespace remoting
#endif // REMOTING_PROTOCOL_MESSAGES_STREAM_READER_H_
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