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time.go
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time.go
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// Copyright 2022 tree xie
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cache
import (
"encoding/binary"
"time"
)
const timestampByteSize = 8
func writeTimeToBytes(t time.Time, data []byte) {
timestamp := t.UnixNano()
binary.BigEndian.PutUint64(data, uint64(timestamp))
}
func getTimeFromBytes(buf []byte) time.Time {
timestamp := int64(binary.BigEndian.Uint64(buf))
sec := timestamp / int64(time.Second)
nsec := timestamp % int64(time.Second)
return time.Unix(sec, nsec)
}