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dd0b200aed
The x/net go.mod now depends on go1.23. Change-Id: I24960949d84753f84f75fbdc97b7dfb92191a4d2 Reviewed-on: https://go-review.googlesource.com/c/net/+/664295 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Jonathan Amsterdam <jba@google.com> Auto-Submit: Damien Neil <dneil@google.com>
54 lines
921 B
Go
54 lines
921 B
Go
// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package quic
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import (
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"net/netip"
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"sync"
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)
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type datagram struct {
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b []byte
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localAddr netip.AddrPort
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peerAddr netip.AddrPort
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ecn ecnBits
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}
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// Explicit Congestion Notification bits.
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//
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// https://www.rfc-editor.org/rfc/rfc3168.html#section-5
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type ecnBits byte
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const (
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ecnMask = 0b000000_11
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ecnNotECT = 0b000000_00
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ecnECT1 = 0b000000_01
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ecnECT0 = 0b000000_10
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ecnCE = 0b000000_11
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)
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var datagramPool = sync.Pool{
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New: func() any {
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return &datagram{
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b: make([]byte, maxUDPPayloadSize),
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}
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},
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}
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func newDatagram() *datagram {
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m := datagramPool.Get().(*datagram)
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*m = datagram{
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b: m.b[:cap(m.b)],
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}
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return m
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}
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func (m *datagram) recycle() {
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if cap(m.b) != maxUDPPayloadSize {
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return
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}
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datagramPool.Put(m)
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}
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