Enum Protocol 

pub enum Protocol {
    V3,
    V4,
    V5,
}

Protocol version handling and negotiation Represents the MQTT protocol version.

Variants

V3

MQTT v3.1

V4

MQTT v3.1.1

V5

MQTT v5.0

Implementations

impl Protocol

pub fn name(self) -> &'static str

Returns the protocol name as a static string.

• For Protocol::V3, the name is "MQIsdp".
• For Protocol::V4 and Protocol::V5, the name is "MQTT".

Examples

use mqute_codec::protocol::Protocol;

let protocol = Protocol::V3;
assert_eq!(protocol.name(), "MQIsdp");

let protocol = Protocol::V5;
assert_eq!(protocol.name(), "MQTT");

Trait Implementations

impl Clone for Protocol

fn clone(&self) -> Protocol

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Protocol

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Protocol> for u8

fn from(value: Protocol) -> Self

Converts the Protocol enum into its corresponding numeric value.

Examples

use mqute_codec::protocol::Protocol;

let protocol = Protocol::V5;
let value: u8 = protocol.into();
assert_eq!(value, 0x05);

impl PartialEq for Protocol

fn eq(&self, other: &Protocol) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<u8> for Protocol

fn try_from(value: u8) -> Result<Self, Self::Error>

Attempts to convert a numeric value into a Protocol enum.

Errors

Returns an Error::InvalidProtocolLevel if the value is not a valid protocol version.

Examples

use mqute_codec::protocol::Protocol;
use mqute_codec::Error;

let protocol = Protocol::try_from(0x04).unwrap();
assert_eq!(protocol, Protocol::V4);

let result = Protocol::try_from(0x06);
assert!(result.is_err());

type Error = Error

The type returned in the event of a conversion error.

impl Copy for Protocol

impl Eq for Protocol

impl StructuralPartialEq for Protocol