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cull fmt package use and prevent aggressive DCE in MWE example with TinyGo

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soypat
2026-09-01 09:39:10 -07:00
parent d219daa2c4
commit c97a32f3c1
14 changed files with 197 additions and 97 deletions
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tcp/definitions.go
+13 -4
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@@ -2,12 +2,12 @@ package tcp
import (
"errors"
"fmt"
"math/bits"
"strconv"
"unsafe"
"github.com/soypat/lneto"
"github.com/soypat/lneto/internal"
)
//go:generate stringer -type=State,OptionKind -linecomment -output stringers.go .
@@ -73,10 +73,19 @@ func (seg Segment) isFirstSYN() bool {
}
func (seg Segment) String() string {
if seg.DATALEN == 0 {
return fmt.Sprintf("SEG %s ACK=%d SEQ=%d WND=%d", seg.Flags, seg.ACK, seg.SEQ, seg.WND)
return string(seg.AppendString(nil))
}
func (seg Segment) AppendString(b []byte) []byte {
b = append(b, "SEG "...)
b = append(b, seg.Flags.String()...)
b = internal.AppendStrDecimal(b, " ACK=", int64(seg.ACK))
b = internal.AppendStrDecimal(b, " SEQ=", int64(seg.SEQ))
b = internal.AppendStrDecimal(b, " WND=", int64(seg.WND))
if seg.DATALEN > 0 {
b = internal.AppendStrDecimal(b, " DATALEN=", int64(seg.DATALEN))
}
return fmt.Sprintf("SEG %s ACK=%d SEQ=%d WND=%d DATALEN=%d", seg.Flags, seg.ACK, seg.SEQ, seg.WND, seg.DATALEN)
return b
}
// ClientSynSegment is a the first packet sent over a TCP connection to a server. Typically the client