EtherGuard-VPN/internal/tai64n/tai64.go
2018-02-11 19:25:33 +01:00

27 lines
496 B
Go

package tai64n
import (
"bytes"
"encoding/binary"
"time"
)
const TimestampSize = 12
const base = uint64(4611686018427387914)
type Timestamp [TimestampSize]byte
func Now() Timestamp {
var tai64n Timestamp
now := time.Now()
secs := base + uint64(now.Unix())
nano := uint32(now.UnixNano())
binary.BigEndian.PutUint64(tai64n[:], secs)
binary.BigEndian.PutUint32(tai64n[8:], nano)
return tai64n
}
func (t1 Timestamp) After(t2 Timestamp) bool {
return bytes.Compare(t1[:], t2[:]) > 0
}