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// Copyright 2015 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_QUIC_CHANNEL_H_
#define REMOTING_PROTOCOL_QUIC_CHANNEL_H_
#include "net/quic/p2p/quic_p2p_stream.h"
#include "remoting/base/compound_buffer.h"
#include "remoting/protocol/p2p_stream_socket.h"
namespace net {
class DrainableIOBuffer;
} // namespace net
namespace remoting {
namespace protocol {
// QuicChannel implements P2PStreamSocket interface for a QuicP2PStream.
class QuicChannel : public net::QuicP2PStream::Delegate,
public P2PStreamSocket {
public:
QuicChannel(net::QuicP2PStream* stream,
const base::Closure& on_destroyed_callback);
~QuicChannel() override;
const std::string& name() { return name_; }
// P2PStreamSocket interface.
int Read(const scoped_refptr<net::IOBuffer>& buffer,
int buffer_len,
const net::CompletionCallback& callback) override;
int Write(const scoped_refptr<net::IOBuffer>& buffer,
int buffer_len,
const net::CompletionCallback& callback) override;
protected:
void SetName(const std::string& name);
// Owned by QuicSession.
net::QuicP2PStream* stream_;
private:
// net::QuicP2PStream::Delegate interface.
void OnDataReceived(const char* data, int length) override;
void OnClose(net::QuicErrorCode error) override;
base::Closure on_destroyed_callback_;
std::string name_;
CompoundBuffer data_received_;
net::CompletionCallback read_callback_;
scoped_refptr<net::IOBuffer> read_buffer_;
int read_buffer_size_ = 0;
int error_ = 0;
DISALLOW_COPY_AND_ASSIGN(QuicChannel);
};
// Client side of a channel. Sends the |name| specified in the constructor to
// the peer.
class QuicClientChannel : public QuicChannel {
public:
QuicClientChannel(net::QuicP2PStream* stream,
const base::Closure& on_destroyed_callback,
const std::string& name);
~QuicClientChannel() override;
private:
DISALLOW_COPY_AND_ASSIGN(QuicClientChannel);
};
// Host side of a channel. Receives name from the peer after ReceiveName is
// called. Read() can be called only after the name is received.
class QuicServerChannel : public QuicChannel {
public:
QuicServerChannel(net::QuicP2PStream* stream,
const base::Closure& on_destroyed_callback);
~QuicServerChannel() override;
// Must be called after the constructor to receive channel name.
// |name_received_callback| must use QuicChannel::name() to get the name.
// Empty name() indicates failure to receive it.
void ReceiveName(const base::Closure& name_received_callback);
private:
void OnNameSizeReadResult(int result);
void ReadNameLoop(int result);
void OnNameReadResult(int result);
base::Closure name_received_callback_;
uint8_t name_length_ = 0;
scoped_refptr<net::DrainableIOBuffer> name_read_buffer_;
DISALLOW_COPY_AND_ASSIGN(QuicServerChannel);
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_QUIC_CHANNEL_H_
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