cloudflared-mirror/vendor/github.com/lucas-clemente/quic-go/logging/interface.go

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// Package logging defines a logging interface for quic-go.
// This package should not be considered stable
package logging
import (
"net"
"time"
"github.com/lucas-clemente/quic-go/internal/utils"
"github.com/lucas-clemente/quic-go/internal/protocol"
"github.com/lucas-clemente/quic-go/internal/qerr"
"github.com/lucas-clemente/quic-go/internal/wire"
)
type (
// A ByteCount is used to count bytes.
ByteCount = protocol.ByteCount
// A ConnectionID is a QUIC Connection ID.
ConnectionID = protocol.ConnectionID
// The EncryptionLevel is the encryption level of a packet.
EncryptionLevel = protocol.EncryptionLevel
// The KeyPhase is the key phase of the 1-RTT keys.
KeyPhase = protocol.KeyPhase
// The KeyPhaseBit is the value of the key phase bit of the 1-RTT packets.
KeyPhaseBit = protocol.KeyPhaseBit
// The PacketNumber is the packet number of a packet.
PacketNumber = protocol.PacketNumber
// The Perspective is the role of a QUIC endpoint (client or server).
Perspective = protocol.Perspective
// A StatelessResetToken is a stateless reset token.
StatelessResetToken = protocol.StatelessResetToken
// The StreamID is the stream ID.
StreamID = protocol.StreamID
// The StreamNum is the number of the stream.
StreamNum = protocol.StreamNum
// The StreamType is the type of the stream (unidirectional or bidirectional).
StreamType = protocol.StreamType
// The VersionNumber is the QUIC version.
VersionNumber = protocol.VersionNumber
// The Header is the QUIC packet header, before removing header protection.
Header = wire.Header
// The ExtendedHeader is the QUIC packet header, after removing header protection.
ExtendedHeader = wire.ExtendedHeader
// The TransportParameters are QUIC transport parameters.
TransportParameters = wire.TransportParameters
// The PreferredAddress is the preferred address sent in the transport parameters.
PreferredAddress = wire.PreferredAddress
// A TransportError is a transport-level error code.
TransportError = qerr.ErrorCode
// An ApplicationError is an application-defined error code.
ApplicationError = qerr.ErrorCode
// The RTTStats contain statistics used by the congestion controller.
RTTStats = utils.RTTStats
)
const (
// KeyPhaseZero is key phase bit 0
KeyPhaseZero KeyPhaseBit = protocol.KeyPhaseZero
// KeyPhaseOne is key phase bit 1
KeyPhaseOne KeyPhaseBit = protocol.KeyPhaseOne
)
const (
// PerspectiveServer is used for a QUIC server
PerspectiveServer Perspective = protocol.PerspectiveServer
// PerspectiveClient is used for a QUIC client
PerspectiveClient Perspective = protocol.PerspectiveClient
)
const (
// EncryptionInitial is the Initial encryption level
EncryptionInitial EncryptionLevel = protocol.EncryptionInitial
// EncryptionHandshake is the Handshake encryption level
EncryptionHandshake EncryptionLevel = protocol.EncryptionHandshake
// Encryption1RTT is the 1-RTT encryption level
Encryption1RTT EncryptionLevel = protocol.Encryption1RTT
// Encryption0RTT is the 0-RTT encryption level
Encryption0RTT EncryptionLevel = protocol.Encryption0RTT
)
const (
// StreamTypeUni is a unidirectional stream
StreamTypeUni = protocol.StreamTypeUni
// StreamTypeBidi is a bidirectional stream
StreamTypeBidi = protocol.StreamTypeBidi
)
// A Tracer traces events.
type Tracer interface {
// ConnectionTracer requests a new tracer for a connection.
// The ODCID is the original destination connection ID:
// The destination connection ID that the client used on the first Initial packet it sent on this connection.
// If nil is returned, tracing will be disabled for this connection.
TracerForConnection(p Perspective, odcid ConnectionID) ConnectionTracer
SentPacket(net.Addr, *Header, ByteCount, []Frame)
DroppedPacket(net.Addr, PacketType, ByteCount, PacketDropReason)
}
// A ConnectionTracer records events.
type ConnectionTracer interface {
StartedConnection(local, remote net.Addr, version VersionNumber, srcConnID, destConnID ConnectionID)
ClosedConnection(CloseReason)
SentTransportParameters(*TransportParameters)
ReceivedTransportParameters(*TransportParameters)
RestoredTransportParameters(parameters *TransportParameters) // for 0-RTT
SentPacket(hdr *ExtendedHeader, size ByteCount, ack *AckFrame, frames []Frame)
ReceivedVersionNegotiationPacket(*Header, []VersionNumber)
ReceivedRetry(*Header)
ReceivedPacket(hdr *ExtendedHeader, size ByteCount, frames []Frame)
BufferedPacket(PacketType)
DroppedPacket(PacketType, ByteCount, PacketDropReason)
UpdatedMetrics(rttStats *RTTStats, cwnd, bytesInFlight ByteCount, packetsInFlight int)
LostPacket(EncryptionLevel, PacketNumber, PacketLossReason)
UpdatedCongestionState(CongestionState)
UpdatedPTOCount(value uint32)
UpdatedKeyFromTLS(EncryptionLevel, Perspective)
UpdatedKey(generation KeyPhase, remote bool)
DroppedEncryptionLevel(EncryptionLevel)
DroppedKey(generation KeyPhase)
SetLossTimer(TimerType, EncryptionLevel, time.Time)
LossTimerExpired(TimerType, EncryptionLevel)
LossTimerCanceled()
// Close is called when the connection is closed.
Close()
Debug(name, msg string)
}