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implement a memory-optimized time.Time replacement (#5334)

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* implement a memory-optimized time.Time replacement

* monotime: properly handle systems with bad timer resolution (Windows)

* monotime: simplify Since
This commit is contained in:
Marten Seemann
2025-09-14 14:12:10 +08:00
committed by GitHub
parent f61188b8ff
commit adc13be540
75 changed files with 1003 additions and 797 deletions
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31
internal/ackhandler/interfaces.go
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@@ -1,8 +1,7 @@
package ackhandler
import (
"time"
"github.com/quic-go/quic-go/internal/monotime"
"github.com/quic-go/quic-go/internal/protocol"
"github.com/quic-go/quic-go/internal/wire"
)
@@ -10,19 +9,19 @@ import (
// SentPacketHandler handles ACKs received for outgoing packets
type SentPacketHandler interface {
// SentPacket may modify the packet
SentPacket(t time.Time, pn, largestAcked protocol.PacketNumber, streamFrames []StreamFrame, frames []Frame, encLevel protocol.EncryptionLevel, ecn protocol.ECN, size protocol.ByteCount, isPathMTUProbePacket, isPathProbePacket bool)
SentPacket(t monotime.Time, pn, largestAcked protocol.PacketNumber, streamFrames []StreamFrame, frames []Frame, encLevel protocol.EncryptionLevel, ecn protocol.ECN, size protocol.ByteCount, isPathMTUProbePacket, isPathProbePacket bool)
// ReceivedAck processes an ACK frame.
// It does not store a copy of the frame.
ReceivedAck(f *wire.AckFrame, encLevel protocol.EncryptionLevel, rcvTime time.Time) (bool /* 1-RTT packet acked */, error)
ReceivedBytes(_ protocol.ByteCount, rcvTime time.Time)
DropPackets(_ protocol.EncryptionLevel, rcvTime time.Time)
ResetForRetry(rcvTime time.Time)
ReceivedAck(f *wire.AckFrame, encLevel protocol.EncryptionLevel, rcvTime monotime.Time) (bool /* 1-RTT packet acked */, error)
ReceivedBytes(_ protocol.ByteCount, rcvTime monotime.Time)
DropPackets(_ protocol.EncryptionLevel, rcvTime monotime.Time)
ResetForRetry(rcvTime monotime.Time)
// The SendMode determines if and what kind of packets can be sent.
SendMode(now time.Time) SendMode
SendMode(now monotime.Time) SendMode
// TimeUntilSend is the time when the next packet should be sent.
// It is used for pacing packets.
TimeUntilSend() time.Time
TimeUntilSend() monotime.Time
SetMaxDatagramSize(count protocol.ByteCount)
// only to be called once the handshake is complete
@@ -32,23 +31,23 @@ type SentPacketHandler interface {
PeekPacketNumber(protocol.EncryptionLevel) (protocol.PacketNumber, protocol.PacketNumberLen)
PopPacketNumber(protocol.EncryptionLevel) protocol.PacketNumber
GetLossDetectionTimeout() time.Time
OnLossDetectionTimeout(now time.Time) error
GetLossDetectionTimeout() monotime.Time
OnLossDetectionTimeout(now monotime.Time) error
MigratedPath(now time.Time, initialMaxPacketSize protocol.ByteCount)
MigratedPath(now monotime.Time, initialMaxPacketSize protocol.ByteCount)
}
type sentPacketTracker interface {
GetLowestPacketNotConfirmedAcked() protocol.PacketNumber
ReceivedPacket(_ protocol.EncryptionLevel, rcvTime time.Time)
ReceivedPacket(_ protocol.EncryptionLevel, rcvTime monotime.Time)
}
// ReceivedPacketHandler handles ACKs needed to send for incoming packets
type ReceivedPacketHandler interface {
IsPotentiallyDuplicate(protocol.PacketNumber, protocol.EncryptionLevel) bool
ReceivedPacket(pn protocol.PacketNumber, ecn protocol.ECN, encLevel protocol.EncryptionLevel, rcvTime time.Time, ackEliciting bool) error
ReceivedPacket(pn protocol.PacketNumber, ecn protocol.ECN, encLevel protocol.EncryptionLevel, rcvTime monotime.Time, ackEliciting bool) error
DropPackets(protocol.EncryptionLevel)
GetAlarmTimeout() time.Time
GetAckFrame(_ protocol.EncryptionLevel, now time.Time, onlyIfQueued bool) *wire.AckFrame
GetAlarmTimeout() monotime.Time
GetAckFrame(_ protocol.EncryptionLevel, now monotime.Time, onlyIfQueued bool) *wire.AckFrame
}