frostfs-node/pkg/core/netmap/epoch/marshal.go

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2020-07-24 13:54:03 +00:00
package epoch
import (
"encoding/binary"
"io"
)
// Size is a size of Epoch
// in a binary form.
const Size = 8
// Marshal encodes Epoch into a
// binary form and returns the result.
//
// Result slice has Size length.
func Marshal(e Epoch) []byte {
d := make([]byte, Size)
binary.BigEndian.PutUint64(d, ToUint64(e))
return d
}
// UnmarshalBinary unmarshals Epoch from
// a binary representation.
//
// If buffer size is insufficient,
// io.ErrUnexpectedEOF is returned.
func (e *Epoch) UnmarshalBinary(data []byte) error {
if len(data) < Size {
return io.ErrUnexpectedEOF
}
*e = FromUint64(binary.BigEndian.Uint64(data))
return nil
}