42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
// Copyright 2013 Prometheus Team
|
|
// 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 indexable
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"time"
|
|
)
|
|
|
|
// EncodeTimeInto writes the provided time into the specified buffer subject
|
|
// to the LevelDB big endian key sort order requirement.
|
|
func EncodeTimeInto(dst []byte, t time.Time) {
|
|
binary.BigEndian.PutUint64(dst, uint64(t.Unix()))
|
|
}
|
|
|
|
// EncodeTime converts the provided time into a byte buffer subject to the
|
|
// LevelDB big endian key sort order requirement.
|
|
func EncodeTime(t time.Time) []byte {
|
|
buffer := make([]byte, 8)
|
|
|
|
EncodeTimeInto(buffer, t)
|
|
|
|
return buffer
|
|
}
|
|
|
|
// DecodeTime deserializes a big endian byte array into a Unix time in UTC,
|
|
// omitting granularity precision less than a second.
|
|
func DecodeTime(src []byte) time.Time {
|
|
return time.Unix(int64(binary.BigEndian.Uint64(src)), 0).UTC()
|
|
}
|