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all: implement AppendText alongside MarshalText (#9207)

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This eventually allows encoding packages that may respect
the proposed encoding.TextAppender interface.
The performance gains from this is between 10-30%.

Updates tailscale/corp#14379

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
This commit is contained in:
Joe Tsai
2023-09-01 18:15:19 -07:00
committed by GitHub
parent 9a3bc9049c
commit c6fadd6d71
12 changed files with 108 additions and 69 deletions
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21
tailcfg/tailcfg.go
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@@ -7,7 +7,6 @@ package tailcfg
import (
"bytes"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
@@ -445,6 +444,10 @@ const (
MachineInvalid // server has explicitly rejected this machine key
)
func (m MachineStatus) AppendText(b []byte) ([]byte, error) {
return append(b, m.String()...), nil
}
func (m MachineStatus) MarshalText() ([]byte, error) {
return []byte(m.String()), nil
}
@@ -921,6 +924,10 @@ const (
SignatureV2
)
func (st SignatureType) AppendText(b []byte) ([]byte, error) {
return append(b, st.String()...), nil
}
func (st SignatureType) MarshalText() ([]byte, error) {
return []byte(st.String()), nil
}
@@ -1765,18 +1772,6 @@ type Debug struct {
Exit *int `json:",omitempty"`
}
func appendKey(base []byte, prefix string, k [32]byte) []byte {
ret := append(base, make([]byte, len(prefix)+64)...)
buf := ret[len(base):]
copy(buf, prefix)
hex.Encode(buf[len(prefix):], k[:])
return ret
}
func keyMarshalText(prefix string, k [32]byte) []byte {
return appendKey(nil, prefix, k)
}
func (id ID) String() string { return fmt.Sprintf("id:%x", int64(id)) }
func (id UserID) String() string { return fmt.Sprintf("userid:%x", int64(id)) }
func (id LoginID) String() string { return fmt.Sprintf("loginid:%x", int64(id)) }