rclone/vendor/storj.io/drpc/drpcwire/error.go
2020-05-12 15:56:50 +00:00

28 lines
703 B
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package drpcwire
import (
"encoding/binary"
"github.com/zeebo/errs"
"storj.io/drpc/drpcerr"
)
// MarshalError returns a byte form of the error with any error code incorporated.
func MarshalError(err error) []byte {
var buf [8]byte
binary.BigEndian.PutUint64(buf[:], drpcerr.Code(err))
return append(buf[:], err.Error()...)
}
// UnmarshalError unmarshals the marshaled error to one with a code.
func UnmarshalError(data []byte) error {
if len(data) < 8 {
return errs.New("%s (drpcwire note: invalid error data)", data)
}
return drpcerr.WithCode(errs.New("%s", data[8:]), binary.BigEndian.Uint64(data[:8]))
}