const DEFAULT_PACKET_BUFFER_SIZE: usize = 2048;
pub const PACKET_BUFFER_SIZE: usize = DEFAULT_PACKET_BUFFER_SIZE;
pub const MAX_FIELD_NAME: usize = 128;
// pub const PACKET_BUFFER_SIZE : usize = match option_env!("PACKET_BUFFER_SIZE") {
// None => DEFAULT_PACKET_BUFFER_SIZE,
// Some(num_str) => {
// match num_str.parse::<usize>() {
// Ok(num) => {
// match num.is_power_of_two() {
// true => num,
// _ => DEFAULT_PACKET_BUFFER_SIZE,
// }
// },
// _ => { DEFAULT_PACKET_BUFFER_SIZE },
// }
// }
// };