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// Copyright 2014 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.
// A toy server, which listens on a specified address for QUIC traffic and
// handles incoming responses.
#include <memory>
#include "base/macros.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_endpoint.h"
#include "net/log/net_log.h"
#include "net/quic/crypto/quic_crypto_server_config.h"
#include "net/quic/quic_chromium_alarm_factory.h"
#include "net/quic/quic_chromium_connection_helper.h"
#include "net/quic/quic_clock.h"
#include "net/quic/quic_config.h"
namespace net {
class UDPServerSocket;
class QuicDispatcher;
namespace test {
class QuicSimpleServerPeer;
} // namespace test
class QuicSimpleServer {
QuicSimpleServer(ProofSource* proof_source,
const QuicConfig& config,
const QuicVersionVector& supported_versions);
virtual ~QuicSimpleServer();
// Start listening on the specified address. Returns an error code.
int Listen(const IPEndPoint& address);
// Server deletion is imminent. Start cleaning up.
void Shutdown();
// Start reading on the socket. On asynchronous reads, this registers
// OnReadComplete as the callback, which will then call StartReading again.
void StartReading();
// Called on reads that complete asynchronously. Dispatches the packet and
// continues the read loop.
void OnReadComplete(int result);
void SetStrikeRegisterNoStartupPeriod() {
QuicDispatcher* dispatcher() { return dispatcher_.get(); }
friend class test::QuicSimpleServerPeer;
// Initialize the internal state of the server.
void Initialize();
// Accepts data from the framer and demuxes clients to sessions.
std::unique_ptr<QuicDispatcher> dispatcher_;
// Used by the helper_ to time alarms.
QuicClock clock_;
// Used to manage the message loop. Owned by dispatcher_.
QuicChromiumConnectionHelper* helper_;
// Used to manage the message loop. Owned by dispatcher_.
QuicChromiumAlarmFactory* alarm_factory_;
// Listening socket. Also used for outbound client communication.
std::unique_ptr<UDPServerSocket> socket_;
// config_ contains non-crypto parameters that are negotiated in the crypto
// handshake.
QuicConfig config_;
// crypto_config_ contains crypto parameters for the handshake.
QuicCryptoServerConfig crypto_config_;
// This vector contains QUIC versions which we currently support.
// This should be ordered such that the highest supported version is the first
// element, with subsequent elements in descending order (versions can be
// skipped as necessary).
QuicVersionVector supported_versions_;
// The address that the server listens on.
IPEndPoint server_address_;
// Keeps track of whether a read is currently in flight, after which
// OnReadComplete will be called.
bool read_pending_;
// The number of iterations of the read loop that have completed synchronously
// and without posting a new task to the message loop.
int synchronous_read_count_;
// The target buffer of the current read.
scoped_refptr<IOBufferWithSize> read_buffer_;
// The source address of the current read.
IPEndPoint client_address_;
// The log to use for the socket.
NetLog net_log_;
base::WeakPtrFactory<QuicSimpleServer> weak_factory_;
} // namespace net