mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-27 00:30:18 +00:00
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
|
/*
|
||
|
|
Copyright 2022 The Ceph-CSI Authors.
|
||
|
|
|
||
|
|
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 v1
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/binary"
|
||
|
|
|
||
|
|
"github.com/ceph/ceph-csi/internal/util/reftracker/errors"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Represents the number of references a reftracker object holds.
|
||
|
|
type refCount uint32
|
||
|
|
|
||
|
|
const (
|
||
|
|
Version = 1
|
||
|
|
|
||
|
|
refCountSize = 4
|
||
|
|
)
|
||
|
|
|
||
|
|
func (rc refCount) toBytes() []byte {
|
||
|
|
bs := make([]byte, refCountSize)
|
||
|
|
binary.BigEndian.PutUint32(bs, uint32(rc))
|
||
|
|
|
||
|
|
return bs
|
||
|
|
}
|
||
|
|
|
||
|
|
func refCountFromBytes(bs []byte) (refCount, error) {
|
||
|
|
if len(bs) != refCountSize {
|
||
|
|
return 0, errors.UnexpectedReadSize(refCountSize, len(bs))
|
||
|
|
}
|
||
|
|
|
||
|
|
return refCount(binary.BigEndian.Uint32(bs)), nil
|
||
|
|
}
|