func readMsgLen(r io.Reader) (uint32, error) {
    if l, err := readLen4(r); err != nil {
        return 0, err
    } else {
        return l, nil
    }
}
// Read the length of the rest of the message

Read the length of the rest of the message
// Read the length of the rest of the message
func readMsgLen(r io.Reader) (uint32, error) {
    if l, err := readLen4(r); err != nil {
        return 0, err
    } else {
        return l, nil
    }
}
func readMsgLen ( r io . Reader ) ( uint32 , error ) { if l , err := readLen4 ( r ) ; err != nil { return 0 , err } else { return l , nil } }
Read the length of the rest of the message
Read the length of the rest of the message