cloudflared-mirror/quic/tracing.go

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package quic
import (
"context"
"net"
"github.com/quic-go/quic-go/logging"
"github.com/rs/zerolog"
)
// QUICTracer is a wrapper to create new quicConnTracer
type tracer struct {
index string
logger *zerolog.Logger
}
func NewClientTracer(logger *zerolog.Logger, index uint8) func(context.Context, logging.Perspective, logging.ConnectionID) *logging.ConnectionTracer {
t := &tracer{
index: uint8ToString(index),
logger: logger,
}
return t.TracerForConnection
}
func (t *tracer) TracerForConnection(_ctx context.Context, _p logging.Perspective, _odcid logging.ConnectionID) *logging.ConnectionTracer {
return newConnTracer(newClientCollector(t.index, t.logger))
}
// connTracer collects connection level metrics
type connTracer struct {
metricsCollector *clientCollector
}
func newConnTracer(metricsCollector *clientCollector) *logging.ConnectionTracer {
tracer := connTracer{
metricsCollector: metricsCollector,
}
return &logging.ConnectionTracer{
StartedConnection: tracer.StartedConnection,
ClosedConnection: tracer.ClosedConnection,
ReceivedTransportParameters: tracer.ReceivedTransportParameters,
SentLongHeaderPacket: tracer.SentLongHeaderPacket,
SentShortHeaderPacket: tracer.SentShortHeaderPacket,
ReceivedLongHeaderPacket: tracer.ReceivedLongHeaderPacket,
ReceivedShortHeaderPacket: tracer.ReceivedShortHeaderPacket,
BufferedPacket: tracer.BufferedPacket,
DroppedPacket: tracer.DroppedPacket,
UpdatedMetrics: tracer.UpdatedMetrics,
LostPacket: tracer.LostPacket,
UpdatedMTU: tracer.UpdatedMTU,
UpdatedCongestionState: tracer.UpdatedCongestionState,
}
}
func (ct *connTracer) StartedConnection(local, remote net.Addr, srcConnID, destConnID logging.ConnectionID) {
ct.metricsCollector.startedConnection()
}
func (ct *connTracer) ClosedConnection(err error) {
ct.metricsCollector.closedConnection(err)
}
func (ct *connTracer) ReceivedTransportParameters(params *logging.TransportParameters) {
ct.metricsCollector.receivedTransportParameters(params)
}
func (ct *connTracer) BufferedPacket(pt logging.PacketType, size logging.ByteCount) {
ct.metricsCollector.bufferedPackets(pt)
}
func (ct *connTracer) DroppedPacket(pt logging.PacketType, number logging.PacketNumber, size logging.ByteCount, reason logging.PacketDropReason) {
ct.metricsCollector.droppedPackets(pt, size, reason)
}
func (ct *connTracer) LostPacket(level logging.EncryptionLevel, number logging.PacketNumber, reason logging.PacketLossReason) {
ct.metricsCollector.lostPackets(reason)
}
func (ct *connTracer) UpdatedMetrics(rttStats *logging.RTTStats, cwnd, bytesInFlight logging.ByteCount, packetsInFlight int) {
ct.metricsCollector.updatedRTT(rttStats)
ct.metricsCollector.updateCongestionWindow(cwnd)
}
func (ct *connTracer) SentLongHeaderPacket(hdr *logging.ExtendedHeader, size logging.ByteCount, ecn logging.ECN, ack *logging.AckFrame, frames []logging.Frame) {
ct.metricsCollector.sentPackets(size, frames)
}
func (ct *connTracer) SentShortHeaderPacket(hdr *logging.ShortHeader, size logging.ByteCount, ecn logging.ECN, ack *logging.AckFrame, frames []logging.Frame) {
ct.metricsCollector.sentPackets(size, frames)
}
func (ct *connTracer) ReceivedLongHeaderPacket(hdr *logging.ExtendedHeader, size logging.ByteCount, ecn logging.ECN, frames []logging.Frame) {
ct.metricsCollector.receivedPackets(size, frames)
}
func (ct *connTracer) ReceivedShortHeaderPacket(hdr *logging.ShortHeader, size logging.ByteCount, ecn logging.ECN, frames []logging.Frame) {
ct.metricsCollector.receivedPackets(size, frames)
}
func (ct *connTracer) UpdatedMTU(mtu logging.ByteCount, done bool) {
ct.metricsCollector.updateMTU(mtu)
}
func (ct *connTracer) UpdatedCongestionState(state logging.CongestionState) {
ct.metricsCollector.updatedCongestionState(state)
}