Function parentKey

core/snapshots/storage/bolt.go:54–59

parentKey returns a composite key of the parent and child identifiers. The parts of the key are separated by a zero byte.

(parent, child uint64)

// parentKey returns a composite key of the parent and child identifiers. The
// parts of the key are separated by a zero byte.
func parentKey(parent, child uint64) []byte {
	b := make([]byte, binary.Size([]uint64{parent, child})+1)
	i := binary.PutUvarint(b, parent)
	j := binary.PutUvarint(b[i+1:], child)
	return b[0 : i+j+1]
}

// parentPrefixKey returns the parent part of the composite key with the
// zero byte separator.