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// Copyright (c) 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 NET_QUIC_QUIC_CHROMIUM_PACKET_READER_H_
#define NET_QUIC_QUIC_CHROMIUM_PACKET_READER_H_
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "net/base/io_buffer.h"
#include "net/base/net_export.h"
#include "net/log/net_log_with_source.h"
#include "net/quic/core/quic_packets.h"
#include "net/quic/core/quic_time.h"
#include "net/socket/datagram_client_socket.h"
namespace net {
class QuicClock;
// If more than this many packets have been read or more than that many
// milliseconds have passed, QuicChromiumPacketReader::StartReading() yields by
// doing a QuicChromiumPacketReader::PostTask().
const int kQuicYieldAfterPacketsRead = 32;
const int kQuicYieldAfterDurationMilliseconds = 20;
class NET_EXPORT_PRIVATE QuicChromiumPacketReader {
public:
class NET_EXPORT_PRIVATE Visitor {
public:
virtual ~Visitor() {}
virtual void OnReadError(int result,
const DatagramClientSocket* socket) = 0;
virtual bool OnPacket(const QuicReceivedPacket& packet,
IPEndPoint local_address,
IPEndPoint peer_address) = 0;
};
QuicChromiumPacketReader(DatagramClientSocket* socket,
QuicClock* clock,
Visitor* visitor,
int yield_after_packets,
QuicTime::Delta yield_after_duration,
const NetLogWithSource& net_log);
virtual ~QuicChromiumPacketReader();
// Causes the QuicConnectionHelper to start reading from the socket
// and passing the data along to the QuicConnection.
void StartReading();
private:
// A completion callback invoked when a read completes.
void OnReadComplete(int result);
DatagramClientSocket* socket_;
Visitor* visitor_;
bool read_pending_;
int num_packets_read_;
QuicClock* clock_; // Owned by QuicStreamFactory
int yield_after_packets_;
QuicTime::Delta yield_after_duration_;
QuicTime yield_after_;
scoped_refptr<IOBufferWithSize> read_buffer_;
NetLogWithSource net_log_;
base::WeakPtrFactory<QuicChromiumPacketReader> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(QuicChromiumPacketReader);
};
} // namespace net
#endif // NET_QUIC_QUIC_CHROMIUM_PACKET_READER_H_