Enum ConnectReturnCode 

#[repr(u8)]
pub enum ConnectReturnCode {
    Accepted = 0,
    UnacceptedProtocol = 1,
    IdentifierRejected = 2,
    ServerUnavailable = 3,
    MalformedUsernamePassword = 4,
    Unauthorized = 5,
    Reserved = 6,
}

If the Server sends a ConnectAck packet with non-zero return code, it MUST close the network connection.

Variants

Accepted = 0

Connection accepted.

UnacceptedProtocol = 1

The server do not support the level of the MQTT protocol requested by the Client.

IdentifierRejected = 2

The Client identifier is correct UTF-8 but not allowed by the Server.

ServerUnavailable = 3

The Network Connection has been made but the MQTT service is unavailable.

MalformedUsernamePassword = 4

The data in the username or password is malformed.

Unauthorized = 5

The Client is not authorized to connect.

Reserved = 6

6-255 are reserved.

Trait Implementations

impl Clone for ConnectReturnCode

fn clone(&self) -> ConnectReturnCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConnectReturnCode

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

Formats the value using the given formatter.

impl Default for ConnectReturnCode

fn default() -> ConnectReturnCode

Returns the “default value” for a type.

impl From<u8> for ConnectReturnCode

fn from(v: u8) -> Self

Converts to this type from the input type.

impl PartialEq for ConnectReturnCode

fn eq(&self, other: &ConnectReturnCode) -> 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 Copy for ConnectReturnCode

impl Eq for ConnectReturnCode

impl StructuralPartialEq for ConnectReturnCode