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// Copyright (c) 2018 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.
#include "net/third_party/quiche/src/quic/core/quic_connection.h"
#include "net/third_party/quiche/src/quic/core/quic_types.h"
#include "third_party/quic_trace/lib/quic_trace.pb.h"
namespace quic {
// Records a QUIC trace protocol buffer for a QuicConnection. It's the
// responsibility of the user of this visitor to process or store the resulting
// trace, which can be accessed via trace().
class QuicTraceVisitor : public QuicConnectionDebugVisitor {
explicit QuicTraceVisitor(const QuicConnection* connection);
void OnPacketSent(const SerializedPacket& serialized_packet,
QuicPacketNumber original_packet_number,
TransmissionType transmission_type,
QuicTime sent_time) override;
void OnIncomingAck(const QuicAckFrame& ack_frame,
QuicTime ack_receive_time,
QuicPacketNumber largest_observed,
bool rtt_updated,
QuicPacketNumber least_unacked_sent_packet) override;
void OnPacketLoss(QuicPacketNumber lost_packet_number,
TransmissionType transmission_type,
QuicTime detection_time) override;
void OnWindowUpdateFrame(const QuicWindowUpdateFrame& frame,
const QuicTime& receive_time) override;
void OnSuccessfulVersionNegotiation(
const ParsedQuicVersion& version) override;
void OnApplicationLimited() override;
void OnAdjustNetworkParameters(QuicBandwidth bandwidth,
QuicTime::Delta rtt,
QuicByteCount old_cwnd,
QuicByteCount new_cwnd) override;
// Returns a mutable pointer to the trace. The trace is owned by the
// visitor, but can be moved using Swap() method after the connection is
// finished.
quic_trace::Trace* trace() { return &trace_; }
// Converts QuicTime into a microsecond delta w.r.t. the beginning of the
// connection.
uint64_t ConvertTimestampToRecordedFormat(QuicTime timestamp);
// Populates a quic_trace::Frame message from |frame|.
void PopulateFrameInfo(const QuicFrame& frame,
quic_trace::Frame* frame_record);
// Populates a quic_trace::TransportState message from the associated
// connection.
void PopulateTransportState(quic_trace::TransportState* state);
quic_trace::Trace trace_;
const QuicConnection* connection_;
const QuicTime start_time_;
} // namespace quic