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package btrfsitem
import (
"lukeshu.com/btrfs-tools/pkg/binstruct"
"lukeshu.com/btrfs-tools/pkg/btrfs/internal"
)
// The Key for this item is a UUID, and the item is a list of
// subvolume IDs (ObjectIDs) that that UUID maps to.
type UUIDMap []internal.ObjID // UUID_SUBVOL=251 UUID_RECEIVED_SUBVOL=252
func (o *UUIDMap) UnmarshalBinary(dat []byte) (int, error) {
*o = nil
var n int
for len(dat) > n {
var subvolID internal.ObjID
_n, err := binstruct.Unmarshal(dat[n:], &subvolID)
n += _n
if err != nil {
return n, err
}
*o = append(*o, subvolID)
}
return n, nil
}
func (o UUIDMap) MarshalBinary() ([]byte, error) {
var ret []byte
for _, subvolID := range o {
bs, err := binstruct.Marshal(subvolID)
ret = append(ret, bs...)
if err != nil {
return ret, err
}
}
return ret, nil
}
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