mirror of
https://github.com/KusakabeShi/EtherGuard-VPN.git
synced 2024-11-30 11:13:10 +01:00
33 lines
659 B
Go
33 lines
659 B
Go
/* SPDX-License-Identifier: MIT
|
|
*
|
|
* Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
|
|
*/
|
|
|
|
package tai64n
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"time"
|
|
)
|
|
|
|
const TimestampSize = 12
|
|
const base = uint64(0x400000000000000a)
|
|
const whitenerMask = uint32(0x1000000 - 1)
|
|
|
|
type Timestamp [TimestampSize]byte
|
|
|
|
func Now() Timestamp {
|
|
var tai64n Timestamp
|
|
now := time.Now()
|
|
secs := base + uint64(now.Unix())
|
|
nano := uint32(now.Nanosecond()) &^ whitenerMask
|
|
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
|
|
}
|