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use std::io::{self, Read, Write};
use crate::control::variable_header::VariableHeaderError;
use crate::{Decodable, Encodable};
/// Protocol name in variable header
///
/// # Example
///
/// ```plain
/// 7 3 0
/// +--------------------------+--------------------------+
/// | Length MSB (0) |
/// | Length LSB (4) |
/// | 0100 | 1101 | 'M'
/// | 0101 | 0001 | 'Q'
/// | 0101 | 0100 | 'T'
/// | 0101 | 0100 | 'T'
/// +--------------------------+--------------------------+
/// ```
#[derive(Debug, Eq, PartialEq, Clone)]
pub struct ProtocolName(pub String);
impl Encodable for ProtocolName {
fn encode<W: Write>(&self, writer: &mut W) -> Result<(), io::Error> {
(&self.0[..]).encode(writer)
}
fn encoded_length(&self) -> u32 {
(&self.0[..]).encoded_length()
}
}
impl Decodable for ProtocolName {
type Error = VariableHeaderError;
type Cond = ();
fn decode_with<R: Read>(reader: &mut R, _rest: ()) -> Result<ProtocolName, VariableHeaderError> {
Ok(ProtocolName(Decodable::decode(reader)?))
}
}