Enum Link 

#[non_exhaustive]
pub enum Link {
    #[non_exhaustive]
    Up {
        session_present: bool,
    },
    Down,
}

A change in the state of the connection to the broker.

#[non_exhaustive]: a match on it outside this crate needs a _ arm.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

#[non_exhaustive]

Up

The broker accepted a connection (CONNACK with return code 0).

Built with Link::up outside this crate.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

session_present: bool

The CONNACK session present flag: the broker resumed a stored session, including its subscriptions.

Down

The connection was lost or closed.

Implementations

impl Link

pub const fn up(session_present: bool) -> Self

Link::Up with the CONNACK session present flag.

Trait Implementations

impl Clone for Link

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Link

impl Debug for Link

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

Formats the value using the given formatter.

impl Eq for Link

impl Hash for Link

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Link

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Link